chore(ui): refactor workspace to monorepo

46 files changed, 9859 insertions, 0 deletions

diff --git a/packages/ui/.gitignore b/packages/ui/.gitignore
new file mode 100644
index 0000000..a547bf3
--- /dev/null
+++ b/packages/ui/.gitignore
@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
diff --git a/packages/ui/CHANGELOG.md b/packages/ui/CHANGELOG.md
new file mode 100644
index 0000000..4b2d22b
--- /dev/null
+++ b/packages/ui/CHANGELOG.md
@@ -0,0 +1,7 @@
+# Changelog
+
+## v0.2.0-alpha.1
+
+### New Features
+
+- [`e7ac28c`](https://github.com/HydroRoll-Team/DropOut/commit/e7ac28c6b8467a8fca0a3b61ba498e4742d3a718): Prepare for alpha mode pre-release. ([#62](https://github.com/HydroRoll-Team/DropOut/pull/62) by @fu050409)
diff --git a/packages/ui/README.md b/packages/ui/README.md
new file mode 100644
index 0000000..a45e2a0
--- /dev/null
+++ b/packages/ui/README.md
@@ -0,0 +1,47 @@
+# Svelte + TS + Vite
+
+This template should help get you started developing with Svelte and TypeScript in Vite.
+
+## Recommended IDE Setup
+
+[VS Code](https://code.visualstudio.com/) + [Svelte](https://marketplace.visualstudio.com/items?itemName=svelte.svelte-vscode).
+
+## Need an official Svelte framework?
+
+Check out [SvelteKit](https://github.com/sveltejs/kit#readme), which is also powered by Vite. Deploy anywhere with its serverless-first approach and adapt to various platforms, with out of the box support for TypeScript, SCSS, and Less, and easily-added support for mdsvex, GraphQL, PostCSS, Tailwind CSS, and more.
+
+## Technical considerations
+
+**Why use this over SvelteKit?**
+
+- It brings its own routing solution which might not be preferable for some users.
+- It is first and foremost a framework that just happens to use Vite under the hood, not a Vite app.
+
+This template contains as little as possible to get started with Vite + TypeScript + Svelte, while taking into account the developer experience with regards to HMR and intellisense. It demonstrates capabilities on par with the other `create-vite` templates and is a good starting point for beginners dipping their toes into a Vite + Svelte project.
+
+Should you later need the extended capabilities and extensibility provided by SvelteKit, the template has been structured similarly to SvelteKit so that it is easy to migrate.
+
+**Why `global.d.ts` instead of `compilerOptions.types` inside `jsconfig.json` or `tsconfig.json`?**
+
+Setting `compilerOptions.types` shuts out all other types not explicitly listed in the configuration. Using triple-slash references keeps the default TypeScript setting of accepting type information from the entire workspace, while also adding `svelte` and `vite/client` type information.
+
+**Why include `.vscode/extensions.json`?**
+
+Other templates indirectly recommend extensions via the README, but this file allows VS Code to prompt the user to install the recommended extension upon opening the project.
+
+**Why enable `allowJs` in the TS template?**
+
+While `allowJs: false` would indeed prevent the use of `.js` files in the project, it does not prevent the use of JavaScript syntax in `.svelte` files. In addition, it would force `checkJs: false`, bringing the worst of both worlds: not being able to guarantee the entire codebase is TypeScript, and also having worse typechecking for the existing JavaScript. In addition, there are valid use cases in which a mixed codebase may be relevant.
+
+**Why is HMR not preserving my local component state?**
+
+HMR state preservation comes with a number of gotchas! It has been disabled by default in both `svelte-hmr` and `@sveltejs/vite-plugin-svelte` due to its often surprising behavior. You can read the details [here](https://github.com/rixo/svelte-hmr#svelte-hmr).
+
+If you have state that's important to retain within a component, consider creating an external store which would not be replaced by HMR.
+
+```ts
+// store.ts
+// An extremely simple external store
+import { writable } from "svelte/store";
+export default writable(0);
+```
diff --git a/packages/ui/index.html b/packages/ui/index.html
new file mode 100644
index 0000000..4fe68e1
--- /dev/null
+++ b/packages/ui/index.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+    <head>
+        <meta charset="UTF-8" />
+        <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+        <title>Dropout</title>
+    </head>
+    <body>
+        <div id="app"></div>
+        <script type="module" src="/src/main.ts"></script>
+    </body>
+</html>
diff --git a/packages/ui/package.json b/packages/ui/package.json
new file mode 100644
index 0000000..943fddc
--- /dev/null
+++ b/packages/ui/package.json
@@ -0,0 +1,41 @@
+{
+  "name": "@dropout/ui",
+  "version": "0.2.0-alpha.1",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview",
+    "check": "svelte-check --tsconfig ./tsconfig.app.json && tsc -p tsconfig.node.json",
+    "lint": "oxlint .",
+    "lint:fix": "oxlint . --fix",
+    "format": "oxfmt . --write"
+  },
+  "dependencies": {
+    "@tauri-apps/api": "^2.9.1",
+    "@tauri-apps/plugin-dialog": "^2.6.0",
+    "@tauri-apps/plugin-fs": "^2.4.5",
+    "@tauri-apps/plugin-shell": "^2.3.4",
+    "lucide-svelte": "^0.562.0",
+    "marked": "^17.0.1",
+    "node-emoji": "^2.2.0",
+    "prismjs": "^1.30.0"
+  },
+  "devDependencies": {
+    "@sveltejs/vite-plugin-svelte": "^6.2.1",
+    "@tailwindcss/vite": "^4.1.18",
+    "@tsconfig/svelte": "^5.0.6",
+    "@types/node": "^24.10.1",
+    "@types/prismjs": "^1.26.5",
+    "autoprefixer": "^10.4.23",
+    "oxfmt": "^0.24.0",
+    "oxlint": "^1.39.0",
+    "postcss": "^8.5.6",
+    "svelte": "^5.46.4",
+    "svelte-check": "^4.3.4",
+    "tailwindcss": "^4.1.18",
+    "typescript": "~5.9.3",
+    "vite": "npm:rolldown-vite@7.2.5"
+  }
+}
diff --git a/packages/ui/pnpm-lock.yaml b/packages/ui/pnpm-lock.yaml
new file mode 100644
index 0000000..465b682
--- /dev/null
+++ b/packages/ui/pnpm-lock.yaml
@@ -0,0 +1,1363 @@
+lockfileVersion: '9.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+overrides:
+  vite: npm:rolldown-vite@7.2.5
+
+importers:
+
+  .:
+    dependencies:
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+        specifier: ^2.9.1
+        version: 2.9.1
+      '@tauri-apps/plugin-dialog':
+        specifier: ^2.6.0
+        version: 2.6.0
+      '@tauri-apps/plugin-fs':
+        specifier: ^2.4.5
+        version: 2.4.5
+      '@tauri-apps/plugin-shell':
+        specifier: ^2.3.4
+        version: 2.3.4
+      lucide-svelte:
+        specifier: ^0.562.0
+        version: 0.562.0(svelte@5.46.4)
+      marked:
+        specifier: ^17.0.1
+        version: 17.0.1
+      node-emoji:
+        specifier: ^2.2.0
+        version: 2.2.0
+      prismjs:
+        specifier: ^1.30.0
+        version: 1.30.0
+    devDependencies:
+      '@sveltejs/vite-plugin-svelte':
+        specifier: ^6.2.1
+        version: 6.2.4(rolldown-vite@7.2.5(@types/node@24.10.7)(jiti@2.6.1))(svelte@5.46.4)
+      '@tailwindcss/vite':
+        specifier: ^4.1.18
+        version: 4.1.18(rolldown-vite@7.2.5(@types/node@24.10.7)(jiti@2.6.1))
+      '@tsconfig/svelte':
+        specifier: ^5.0.6
+        version: 5.0.6
+      '@types/node':
+        specifier: ^24.10.1
+        version: 24.10.7
+      '@types/prismjs':
+        specifier: ^1.26.5
+        version: 1.26.5
+      autoprefixer:
+        specifier: ^10.4.23
+        version: 10.4.23(postcss@8.5.6)
+      oxfmt:
+        specifier: ^0.24.0
+        version: 0.24.0
+      oxlint:
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+        version: 1.39.0
+      postcss:
+        specifier: ^8.5.6
+        version: 8.5.6
+      svelte:
+        specifier: ^5.46.4
+        version: 5.46.4
+      svelte-check:
+        specifier: ^4.3.4
+        version: 4.3.5(picomatch@4.0.3)(svelte@5.46.4)(typescript@5.9.3)
+      tailwindcss:
+        specifier: ^4.1.18
+        version: 4.1.18
+      typescript:
+        specifier: ~5.9.3
+        version: 5.9.3
+      vite:
+        specifier: npm:rolldown-vite@7.2.5
+        version: rolldown-vite@7.2.5(@types/node@24.10.7)(jiti@2.6.1)
+
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+    optional: true
+
+  '@tailwindcss/oxide-win32-x64-msvc@4.1.18':
+    optional: true
+
+  '@tailwindcss/oxide@4.1.18':
+    optionalDependencies:
+      '@tailwindcss/oxide-android-arm64': 4.1.18
+      '@tailwindcss/oxide-darwin-arm64': 4.1.18
+      '@tailwindcss/oxide-darwin-x64': 4.1.18
+      '@tailwindcss/oxide-freebsd-x64': 4.1.18
+      '@tailwindcss/oxide-linux-arm-gnueabihf': 4.1.18
+      '@tailwindcss/oxide-linux-arm64-gnu': 4.1.18
+      '@tailwindcss/oxide-linux-arm64-musl': 4.1.18
+      '@tailwindcss/oxide-linux-x64-gnu': 4.1.18
+      '@tailwindcss/oxide-linux-x64-musl': 4.1.18
+      '@tailwindcss/oxide-wasm32-wasi': 4.1.18
+      '@tailwindcss/oxide-win32-arm64-msvc': 4.1.18
+      '@tailwindcss/oxide-win32-x64-msvc': 4.1.18
+
+  '@tailwindcss/vite@4.1.18(rolldown-vite@7.2.5(@types/node@24.10.7)(jiti@2.6.1))':
+    dependencies:
+      '@tailwindcss/node': 4.1.18
+      '@tailwindcss/oxide': 4.1.18
+      tailwindcss: 4.1.18
+      vite: rolldown-vite@7.2.5(@types/node@24.10.7)(jiti@2.6.1)
+
+  '@tauri-apps/api@2.9.1': {}
+
+  '@tauri-apps/plugin-dialog@2.6.0':
+    dependencies:
+      '@tauri-apps/api': 2.9.1
+
+  '@tauri-apps/plugin-fs@2.4.5':
+    dependencies:
+      '@tauri-apps/api': 2.9.1
+
+  '@tauri-apps/plugin-shell@2.3.4':
+    dependencies:
+      '@tauri-apps/api': 2.9.1
+
+  '@tsconfig/svelte@5.0.6': {}
+
+  '@tybys/wasm-util@0.10.1':
+    dependencies:
+      tslib: 2.8.1
+    optional: true
+
+  '@types/estree@1.0.8': {}
+
+  '@types/node@24.10.7':
+    dependencies:
+      undici-types: 7.16.0
+
+  '@types/prismjs@1.26.5': {}
+
+  acorn@8.15.0: {}
+
+  aria-query@5.3.2: {}
+
+  autoprefixer@10.4.23(postcss@8.5.6):
+    dependencies:
+      browserslist: 4.28.1
+      caniuse-lite: 1.0.30001764
+      fraction.js: 5.3.4
+      picocolors: 1.1.1
+      postcss: 8.5.6
+      postcss-value-parser: 4.2.0
+
+  axobject-query@4.1.0: {}
+
+  baseline-browser-mapping@2.9.14: {}
+
+  browserslist@4.28.1:
+    dependencies:
+      baseline-browser-mapping: 2.9.14
+      caniuse-lite: 1.0.30001764
+      electron-to-chromium: 1.5.267
+      node-releases: 2.0.27
+      update-browserslist-db: 1.2.3(browserslist@4.28.1)
+
+  caniuse-lite@1.0.30001764: {}
+
+  char-regex@1.0.2: {}
+
+  chokidar@4.0.3:
+    dependencies:
+      readdirp: 4.1.2
+
+  clsx@2.1.1: {}
+
+  deepmerge@4.3.1: {}
+
+  detect-libc@2.1.2: {}
+
+  devalue@5.6.2: {}
+
+  electron-to-chromium@1.5.267: {}
+
+  emojilib@2.4.0: {}
+
+  enhanced-resolve@5.18.4:
+    dependencies:
+      graceful-fs: 4.2.11
+      tapable: 2.3.0
+
+  escalade@3.2.0: {}
+
+  esm-env@1.2.2: {}
+
+  esrap@2.2.1:
+    dependencies:
+      '@jridgewell/sourcemap-codec': 1.5.5
+
+  fdir@6.5.0(picomatch@4.0.3):
+    optionalDependencies:
+      picomatch: 4.0.3
+
+  fraction.js@5.3.4: {}
+
+  fsevents@2.3.3:
+    optional: true
+
+  graceful-fs@4.2.11: {}
+
+  is-reference@3.0.3:
+    dependencies:
+      '@types/estree': 1.0.8
+
+  jiti@2.6.1: {}
+
+  lightningcss-android-arm64@1.30.2:
+    optional: true
+
+  lightningcss-darwin-arm64@1.30.2:
+    optional: true
+
+  lightningcss-darwin-x64@1.30.2:
+    optional: true
+
+  lightningcss-freebsd-x64@1.30.2:
+    optional: true
+
+  lightningcss-linux-arm-gnueabihf@1.30.2:
+    optional: true
+
+  lightningcss-linux-arm64-gnu@1.30.2:
+    optional: true
+
+  lightningcss-linux-arm64-musl@1.30.2:
+    optional: true
+
+  lightningcss-linux-x64-gnu@1.30.2:
+    optional: true
+
+  lightningcss-linux-x64-musl@1.30.2:
+    optional: true
+
+  lightningcss-win32-arm64-msvc@1.30.2:
+    optional: true
+
+  lightningcss-win32-x64-msvc@1.30.2:
+    optional: true
+
+  lightningcss@1.30.2:
+    dependencies:
+      detect-libc: 2.1.2
+    optionalDependencies:
+      lightningcss-android-arm64: 1.30.2
+      lightningcss-darwin-arm64: 1.30.2
+      lightningcss-darwin-x64: 1.30.2
+      lightningcss-freebsd-x64: 1.30.2
+      lightningcss-linux-arm-gnueabihf: 1.30.2
+      lightningcss-linux-arm64-gnu: 1.30.2
+      lightningcss-linux-arm64-musl: 1.30.2
+      lightningcss-linux-x64-gnu: 1.30.2
+      lightningcss-linux-x64-musl: 1.30.2
+      lightningcss-win32-arm64-msvc: 1.30.2
+      lightningcss-win32-x64-msvc: 1.30.2
+
+  locate-character@3.0.0: {}
+
+  lucide-svelte@0.562.0(svelte@5.46.4):
+    dependencies:
+      svelte: 5.46.4
+
+  magic-string@0.30.21:
+    dependencies:
+      '@jridgewell/sourcemap-codec': 1.5.5
+
+  marked@17.0.1: {}
+
+  mri@1.2.0: {}
+
+  nanoid@3.3.11: {}
+
+  node-emoji@2.2.0:
+    dependencies:
+      '@sindresorhus/is': 4.6.0
+      char-regex: 1.0.2
+      emojilib: 2.4.0
+      skin-tone: 2.0.0
+
+  node-releases@2.0.27: {}
+
+  obug@2.1.1: {}
+
+  oxfmt@0.24.0:
+    dependencies:
+      tinypool: 2.0.0
+    optionalDependencies:
+      '@oxfmt/darwin-arm64': 0.24.0
+      '@oxfmt/darwin-x64': 0.24.0
+      '@oxfmt/linux-arm64-gnu': 0.24.0
+      '@oxfmt/linux-arm64-musl': 0.24.0
+      '@oxfmt/linux-x64-gnu': 0.24.0
+      '@oxfmt/linux-x64-musl': 0.24.0
+      '@oxfmt/win32-arm64': 0.24.0
+      '@oxfmt/win32-x64': 0.24.0
+
+  oxlint@1.39.0:
+    optionalDependencies:
+      '@oxlint/darwin-arm64': 1.39.0
+      '@oxlint/darwin-x64': 1.39.0
+      '@oxlint/linux-arm64-gnu': 1.39.0
+      '@oxlint/linux-arm64-musl': 1.39.0
+      '@oxlint/linux-x64-gnu': 1.39.0
+      '@oxlint/linux-x64-musl': 1.39.0
+      '@oxlint/win32-arm64': 1.39.0
+      '@oxlint/win32-x64': 1.39.0
+
+  picocolors@1.1.1: {}
+
+  picomatch@4.0.3: {}
+
+  postcss-value-parser@4.2.0: {}
+
+  postcss@8.5.6:
+    dependencies:
+      nanoid: 3.3.11
+      picocolors: 1.1.1
+      source-map-js: 1.2.1
+
+  prismjs@1.30.0: {}
+
+  readdirp@4.1.2: {}
+
+  rolldown-vite@7.2.5(@types/node@24.10.7)(jiti@2.6.1):
+    dependencies:
+      '@oxc-project/runtime': 0.97.0
+      fdir: 6.5.0(picomatch@4.0.3)
+      lightningcss: 1.30.2
+      picomatch: 4.0.3
+      postcss: 8.5.6
+      rolldown: 1.0.0-beta.50
+      tinyglobby: 0.2.15
+    optionalDependencies:
+      '@types/node': 24.10.7
+      fsevents: 2.3.3
+      jiti: 2.6.1
+
+  rolldown@1.0.0-beta.50:
+    dependencies:
+      '@oxc-project/types': 0.97.0
+      '@rolldown/pluginutils': 1.0.0-beta.50
+    optionalDependencies:
+      '@rolldown/binding-android-arm64': 1.0.0-beta.50
+      '@rolldown/binding-darwin-arm64': 1.0.0-beta.50
+      '@rolldown/binding-darwin-x64': 1.0.0-beta.50
+      '@rolldown/binding-freebsd-x64': 1.0.0-beta.50
+      '@rolldown/binding-linux-arm-gnueabihf': 1.0.0-beta.50
+      '@rolldown/binding-linux-arm64-gnu': 1.0.0-beta.50
+      '@rolldown/binding-linux-arm64-musl': 1.0.0-beta.50
+      '@rolldown/binding-linux-x64-gnu': 1.0.0-beta.50
+      '@rolldown/binding-linux-x64-musl': 1.0.0-beta.50
+      '@rolldown/binding-openharmony-arm64': 1.0.0-beta.50
+      '@rolldown/binding-wasm32-wasi': 1.0.0-beta.50
+      '@rolldown/binding-win32-arm64-msvc': 1.0.0-beta.50
+      '@rolldown/binding-win32-ia32-msvc': 1.0.0-beta.50
+      '@rolldown/binding-win32-x64-msvc': 1.0.0-beta.50
+
+  sade@1.8.1:
+    dependencies:
+      mri: 1.2.0
+
+  skin-tone@2.0.0:
+    dependencies:
+      unicode-emoji-modifier-base: 1.0.0
+
+  source-map-js@1.2.1: {}
+
+  svelte-check@4.3.5(picomatch@4.0.3)(svelte@5.46.4)(typescript@5.9.3):
+    dependencies:
+      '@jridgewell/trace-mapping': 0.3.31
+      chokidar: 4.0.3
+      fdir: 6.5.0(picomatch@4.0.3)
+      picocolors: 1.1.1
+      sade: 1.8.1
+      svelte: 5.46.4
+      typescript: 5.9.3
+    transitivePeerDependencies:
+      - picomatch
+
+  svelte@5.46.4:
+    dependencies:
+      '@jridgewell/remapping': 2.3.5
+      '@jridgewell/sourcemap-codec': 1.5.5
+      '@sveltejs/acorn-typescript': 1.0.8(acorn@8.15.0)
+      '@types/estree': 1.0.8
+      acorn: 8.15.0
+      aria-query: 5.3.2
+      axobject-query: 4.1.0
+      clsx: 2.1.1
+      devalue: 5.6.2
+      esm-env: 1.2.2
+      esrap: 2.2.1
+      is-reference: 3.0.3
+      locate-character: 3.0.0
+      magic-string: 0.30.21
+      zimmerframe: 1.1.4
+
+  tailwindcss@4.1.18: {}
+
+  tapable@2.3.0: {}
+
+  tinyglobby@0.2.15:
+    dependencies:
+      fdir: 6.5.0(picomatch@4.0.3)
+      picomatch: 4.0.3
+
+  tinypool@2.0.0: {}
+
+  tslib@2.8.1:
+    optional: true
+
+  typescript@5.9.3: {}
+
+  undici-types@7.16.0: {}
+
+  unicode-emoji-modifier-base@1.0.0: {}
+
+  update-browserslist-db@1.2.3(browserslist@4.28.1):
+    dependencies:
+      browserslist: 4.28.1
+      escalade: 3.2.0
+      picocolors: 1.1.1
+
+  vitefu@1.1.1(rolldown-vite@7.2.5(@types/node@24.10.7)(jiti@2.6.1)):
+    optionalDependencies:
+      vite: rolldown-vite@7.2.5(@types/node@24.10.7)(jiti@2.6.1)
+
+  zimmerframe@1.1.4: {}
diff --git a/packages/ui/public/vite.svg b/packages/ui/public/vite.svg
new file mode 100644
index 0000000..ee9fada
--- /dev/null
+++ b/packages/ui/public/vite.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
diff --git a/packages/ui/src/App.svelte b/packages/ui/src/App.svelte
new file mode 100644
index 0000000..f73e0a2
--- /dev/null
+++ b/packages/ui/src/App.svelte
@@ -0,0 +1,217 @@
+<script lang="ts">
+  import { getVersion } from "@tauri-apps/api/app";
+  // import { convertFileSrc } from "@tauri-apps/api/core"; // Removed duplicate, handled by import below or inline
+  import { onDestroy, onMount } from "svelte";
+  import DownloadMonitor from "./lib/DownloadMonitor.svelte";
+  import GameConsole from "./lib/GameConsole.svelte";
+// Components
+  import BottomBar from "./components/BottomBar.svelte";
+  import HomeView from "./components/HomeView.svelte";
+  import LoginModal from "./components/LoginModal.svelte";
+  import ParticleBackground from "./components/ParticleBackground.svelte";
+  import SettingsView from "./components/SettingsView.svelte";
+  import AssistantView from "./components/AssistantView.svelte";
+  import InstancesView from "./components/InstancesView.svelte";
+  import Sidebar from "./components/Sidebar.svelte";
+  import StatusToast from "./components/StatusToast.svelte";
+  import VersionsView from "./components/VersionsView.svelte";
+// Stores
+  import { authState } from "./stores/auth.svelte";
+  import { gameState } from "./stores/game.svelte";
+  import { instancesState } from "./stores/instances.svelte";
+  import { settingsState } from "./stores/settings.svelte";
+  import { uiState } from "./stores/ui.svelte";
+  import { logsState } from "./stores/logs.svelte";
+  import { convertFileSrc } from "@tauri-apps/api/core";
+
+  let mouseX = $state(0);
+  let mouseY = $state(0);
+
+  function handleMouseMove(e: MouseEvent) {
+    mouseX = (e.clientX / window.innerWidth) * 2 - 1;
+    mouseY = (e.clientY / window.innerHeight) * 2 - 1;
+  }
+
+  onMount(async () => {
+    // ENFORCE DARK MODE: Always add 'dark' class and attribute
+    document.documentElement.classList.add('dark');
+    document.documentElement.setAttribute('data-theme', 'dark');
+    document.documentElement.classList.remove('light');
+    
+    authState.checkAccount();
+    await settingsState.loadSettings();
+    logsState.init();
+    await settingsState.detectJava();
+    await instancesState.loadInstances();
+    gameState.loadVersions();
+    getVersion().then((v) => (uiState.appVersion = v));
+    window.addEventListener("mousemove", handleMouseMove);
+  });
+
+  // Refresh versions when active instance changes
+  $effect(() => {
+    if (instancesState.activeInstanceId) {
+      gameState.loadVersions();
+    } else {
+      gameState.versions = [];
+    }
+  });
+
+  onDestroy(() => {
+    if (typeof window !== 'undefined')
+      window.removeEventListener("mousemove", handleMouseMove);
+  });
+</script>
+
+<div
+  class="relative h-screen w-screen overflow-hidden dark:text-white text-gray-900 font-sans selection:bg-indigo-500/30"
+>
+  <!-- Modern Animated Background -->
+  <div class="absolute inset-0 z-0 bg-[#09090b] dark:bg-[#09090b] bg-gray-100 overflow-hidden">
+    {#if settingsState.settings.custom_background_path}
+      <img
+        src={convertFileSrc(settingsState.settings.custom_background_path)}
+        alt="Background"
+        class="absolute inset-0 w-full h-full object-cover transition-transform duration-[20s] ease-linear hover:scale-105"
+        onerror={(e) => console.error("Failed to load main background:", e)}
+      />
+      <!-- Dimming Overlay for readability -->
+      <div class="absolute inset-0 bg-black/50 "></div>
+    {:else if settingsState.settings.enable_visual_effects}
+      <!-- Original Gradient (Dark Only / or Adjusted for Light) -->
+      {#if settingsState.settings.theme === 'dark'}
+          <div 
+            class="absolute inset-0 opacity-60 bg-gradient-to-br from-emerald-900 via-zinc-900 to-indigo-950"
+          ></div>
+      {:else}
+           <!-- Light Mode Gradient -->
+           <div 
+            class="absolute inset-0 opacity-100 bg-gradient-to-br from-emerald-100 via-gray-100 to-indigo-100"
+          ></div>
+      {/if}
+
+      {#if uiState.currentView === "home"}
+        <ParticleBackground />
+      {/if}
+
+      <div 
+        class="absolute inset-0 bg-gradient-to-t from-zinc-900 via-transparent to-black/50 dark:from-zinc-900 dark:to-black/50 from-gray-100 to-transparent"
+      ></div>
+    {/if}
+    
+    <!-- Subtle Grid Overlay -->
+    <div class="absolute inset-0 z-0 opacity-10 dark:opacity-10 opacity-30 pointer-events-none" 
+         style="background-image: linear-gradient({settingsState.settings.theme === 'dark' ? '#ffffff' : '#000000'} 1px, transparent 1px), linear-gradient(90deg, {settingsState.settings.theme === 'dark' ? '#ffffff' : '#000000'} 1px, transparent 1px); background-size: 40px 40px; mask-image: radial-gradient(circle at 50% 50%, black 30%, transparent 70%);">
+    </div>
+  </div>
+
+  <!-- Content Wrapper -->
+  <div class="relative z-10 flex h-full p-4 gap-4 text-gray-900 dark:text-white">
+    <!-- Floating Sidebar -->
+    <Sidebar />
+
+    <!-- Main Content Area - Transparent & Flat -->
+    <main class="flex-1 flex flex-col relative min-w-0 overflow-hidden transition-all duration-300">
+      
+      <!-- Window Drag Region -->
+      <div
+        class="h-8 w-full absolute top-0 left-0 z-50 drag-region"
+        data-tauri-drag-region
+      ></div>
+
+      <!-- App Content -->
+      <div class="flex-1 relative overflow-hidden flex flex-col">
+          <!-- Views Container -->
+          <div class="flex-1 relative overflow-hidden">
+             {#if uiState.currentView === "home"}
+               <HomeView mouseX={mouseX} mouseY={mouseY} />
+             {:else if uiState.currentView === "instances"}
+               <InstancesView />
+             {:else if uiState.currentView === "versions"}
+               <VersionsView />
+             {:else if uiState.currentView === "settings"}
+               <SettingsView />
+             {:else if uiState.currentView === "guide"}
+               <AssistantView />
+             {/if}
+          </div>
+          
+          <!-- Download Monitor Overlay -->
+          <div class="absolute bottom-20 left-4 right-4 pointer-events-none z-20">
+             <div class="pointer-events-auto">
+                 <DownloadMonitor />
+             </div>
+          </div>
+          
+          <!-- Bottom Bar -->
+          {#if uiState.currentView === "home"}
+            <BottomBar />
+          {/if}
+      </div>
+    </main>
+  </div>
+
+  <LoginModal />
+  <StatusToast />
+  
+  <!-- Logout Confirmation Dialog -->
+  {#if authState.isLogoutConfirmOpen}
+    <div class="fixed inset-0 z-[200] bg-black/70 backdrop-blur-sm flex items-center justify-center p-4">
+      <div class="bg-zinc-900 border border-zinc-700 rounded-xl shadow-2xl p-6 max-w-sm w-full animate-in fade-in zoom-in-95 duration-200">
+        <h3 class="text-lg font-bold text-white mb-2">Logout</h3>
+        <p class="text-zinc-400 text-sm mb-6">
+          Are you sure you want to logout <span class="text-white font-medium">{authState.currentAccount?.username}</span>?
+        </p>
+        <div class="flex gap-3 justify-end">
+          <button
+            onclick={() => authState.cancelLogout()}
+            class="px-4 py-2 text-sm font-medium text-zinc-300 hover:text-white bg-zinc-800 hover:bg-zinc-700 rounded-lg transition-colors"
+          >
+            Cancel
+          </button>
+          <button
+            onclick={() => authState.confirmLogout()}
+            class="px-4 py-2 text-sm font-medium text-white bg-red-600 hover:bg-red-500 rounded-lg transition-colors"
+          >
+            Logout
+          </button>
+        </div>
+      </div>
+    </div>
+  {/if}
+  
+  {#if uiState.showConsole}
+    <div class="fixed inset-0 z-[100] bg-black/80 backdrop-blur-sm flex items-center justify-center p-8">
+        <div class="w-full h-full max-w-6xl max-h-[85vh] bg-[#1e1e1e] rounded-lg overflow-hidden border border-zinc-700 shadow-2xl relative flex flex-col">
+            <GameConsole />
+        </div>
+    </div>
+  {/if}
+</div>
+
+<style>
+  :global(body) {
+    margin: 0;
+    padding: 0;
+    background: #000;
+  }
+  
+  /* Modern Scrollbar */
+  :global(*::-webkit-scrollbar) {
+    width: 6px;
+    height: 6px;
+  }
+  
+  :global(*::-webkit-scrollbar-track) {
+    background: transparent;
+  }
+  
+  :global(*::-webkit-scrollbar-thumb) {
+    background: rgba(255, 255, 255, 0.1);
+    border-radius: 999px;
+  }
+  
+  :global(*::-webkit-scrollbar-thumb:hover) {
+    background: rgba(255, 255, 255, 0.25);
+  }
+</style>
diff --git a/packages/ui/src/app.css b/packages/ui/src/app.css
new file mode 100644
index 0000000..63449b7
--- /dev/null
+++ b/packages/ui/src/app.css
@@ -0,0 +1,167 @@
+@import "tailwindcss";
+
+@variant dark (&:where(.dark, .dark *));
+
+/* ==================== Custom Select/Dropdown Styles ==================== */
+
+/* Base select styling */
+select {
+  appearance: none;
+  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2371717a'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
+  background-repeat: no-repeat;
+  background-position: right 0.5rem center;
+  background-size: 1rem;
+  padding-right: 2rem;
+}
+
+/* Option styling - works in WebView/Chromium */
+select option {
+  background-color: #18181b;
+  color: #e4e4e7;
+  padding: 12px 16px;
+  font-size: 13px;
+  border: none;
+}
+
+select option:hover,
+select option:focus {
+  background-color: #3730a3 !important;
+  color: white !important;
+}
+
+select option:checked {
+  background: linear-gradient(0deg, #4f46e5 0%, #4f46e5 100%);
+  color: white;
+  font-weight: 500;
+}
+
+select option:disabled {
+  color: #52525b;
+  background-color: #18181b;
+}
+
+/* Optgroup styling */
+select optgroup {
+  background-color: #18181b;
+  color: #a1a1aa;
+  font-weight: 600;
+  font-size: 11px;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  padding: 8px 12px 4px;
+}
+
+/* Select focus state */
+select:focus {
+  outline: none;
+  border-color: #6366f1;
+  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
+}
+
+/* ==================== Custom Scrollbar (Global) ==================== */
+
+/* Firefox */
+* {
+  scrollbar-width: thin;
+  scrollbar-color: #3f3f46 transparent;
+}
+
+/* Webkit browsers */
+::-webkit-scrollbar {
+  width: 8px;
+  height: 8px;
+}
+
+::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+::-webkit-scrollbar-thumb {
+  background-color: #3f3f46;
+  border-radius: 4px;
+  border: 2px solid transparent;
+  background-clip: content-box;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background-color: #52525b;
+}
+
+::-webkit-scrollbar-corner {
+  background: transparent;
+}
+
+/* ==================== Input/Form Element Consistency ==================== */
+
+input[type="text"],
+input[type="number"],
+input[type="password"],
+input[type="email"],
+textarea {
+  background-color: rgba(0, 0, 0, 0.4);
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  transition:
+    border-color 0.2s ease,
+    box-shadow 0.2s ease;
+}
+
+input[type="text"]:focus,
+input[type="number"]:focus,
+input[type="password"]:focus,
+input[type="email"]:focus,
+textarea:focus {
+  border-color: rgba(99, 102, 241, 0.5);
+  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
+  outline: none;
+}
+
+/* Number input - hide spinner */
+input[type="number"]::-webkit-outer-spin-button,
+input[type="number"]::-webkit-inner-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+input[type="number"] {
+  -moz-appearance: textfield;
+}
+
+/* ==================== Checkbox Styling ==================== */
+
+input[type="checkbox"] {
+  appearance: none;
+  width: 16px;
+  height: 16px;
+  border: 1px solid #3f3f46;
+  border-radius: 4px;
+  background-color: #18181b;
+  cursor: pointer;
+  position: relative;
+  transition: all 0.15s ease;
+}
+
+input[type="checkbox"]:hover {
+  border-color: #52525b;
+}
+
+input[type="checkbox"]:checked {
+  background-color: #4f46e5;
+  border-color: #4f46e5;
+}
+
+input[type="checkbox"]:checked::after {
+  content: "";
+  position: absolute;
+  left: 5px;
+  top: 2px;
+  width: 4px;
+  height: 8px;
+  border: solid white;
+  border-width: 0 2px 2px 0;
+  transform: rotate(45deg);
+}
+
+input[type="checkbox"]:focus {
+  outline: none;
+  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
+}
diff --git a/packages/ui/src/assets/svelte.svg b/packages/ui/src/assets/svelte.svg
new file mode 100644
index 0000000..8c056ce
--- /dev/null
+++ b/packages/ui/src/assets/svelte.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="26.6" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 308"><path fill="#FF3E00" d="M239.682 40.707C211.113-.182 154.69-12.301 113.895 13.69L42.247 59.356a82.198 82.198 0 0 0-37.135 55.056a86.566 86.566 0 0 0 8.536 55.576a82.425 82.425 0 0 0-12.296 30.719a87.596 87.596 0 0 0 14.964 66.244c28.574 40.893 84.997 53.007 125.787 27.016l71.648-45.664a82.182 82.182 0 0 0 37.135-55.057a86.601 86.601 0 0 0-8.53-55.577a82.409 82.409 0 0 0 12.29-30.718a87.573 87.573 0 0 0-14.963-66.244"></path><path fill="#FFF" d="M106.889 270.841c-23.102 6.007-47.497-3.036-61.103-22.648a52.685 52.685 0 0 1-9.003-39.85a49.978 49.978 0 0 1 1.713-6.693l1.35-4.115l3.671 2.697a92.447 92.447 0 0 0 28.036 14.007l2.663.808l-.245 2.659a16.067 16.067 0 0 0 2.89 10.656a17.143 17.143 0 0 0 18.397 6.828a15.786 15.786 0 0 0 4.403-1.935l71.67-45.672a14.922 14.922 0 0 0 6.734-9.977a15.923 15.923 0 0 0-2.713-12.011a17.156 17.156 0 0 0-18.404-6.832a15.78 15.78 0 0 0-4.396 1.933l-27.35 17.434a52.298 52.298 0 0 1-14.553 6.391c-23.101 6.007-47.497-3.036-61.101-22.649a52.681 52.681 0 0 1-9.004-39.849a49.428 49.428 0 0 1 22.34-33.114l71.664-45.677a52.218 52.218 0 0 1 14.563-6.398c23.101-6.007 47.497 3.036 61.101 22.648a52.685 52.685 0 0 1 9.004 39.85a50.559 50.559 0 0 1-1.713 6.692l-1.35 4.116l-3.67-2.693a92.373 92.373 0 0 0-28.037-14.013l-2.664-.809l.246-2.658a16.099 16.099 0 0 0-2.89-10.656a17.143 17.143 0 0 0-18.398-6.828a15.786 15.786 0 0 0-4.402 1.935l-71.67 45.674a14.898 14.898 0 0 0-6.73 9.975a15.9 15.9 0 0 0 2.709 12.012a17.156 17.156 0 0 0 18.404 6.832a15.841 15.841 0 0 0 4.402-1.935l27.345-17.427a52.147 52.147 0 0 1 14.552-6.397c23.101-6.006 47.497 3.037 61.102 22.65a52.681 52.681 0 0 1 9.003 39.848a49.453 49.453 0 0 1-22.34 33.12l-71.664 45.673a52.218 52.218 0 0 1-14.563 6.398"></path></svg>
diff --git a/packages/ui/src/components/AssistantView.svelte b/packages/ui/src/components/AssistantView.svelte
new file mode 100644
index 0000000..54509a5
--- /dev/null
+++ b/packages/ui/src/components/AssistantView.svelte
@@ -0,0 +1,436 @@
+<script lang="ts">
+  import { assistantState } from '../stores/assistant.svelte';
+  import { settingsState } from '../stores/settings.svelte';
+  import { Send, Bot, RefreshCw, Trash2, AlertTriangle, Settings, Brain, ChevronDown } from 'lucide-svelte';
+  import { uiState } from '../stores/ui.svelte';
+  import { marked } from 'marked';
+  import { onMount } from 'svelte';
+
+  let input = $state('');
+  let messagesContainer: HTMLDivElement | undefined = undefined;
+
+  function parseMessageContent(content: string) {
+    if (!content) return { thinking: null, content: '', isThinking: false };
+    
+    // Support both <thinking> and <think> (DeepSeek uses <think>)
+    let startTag = '<thinking>';
+    let endTag = '</thinking>';
+    let startIndex = content.indexOf(startTag);
+    
+    if (startIndex === -1) {
+        startTag = '<think>';
+        endTag = '</think>';
+        startIndex = content.indexOf(startTag);
+    }
+    
+    // Also check for encoded tags if they weren't decoded properly
+    if (startIndex === -1) {
+        startTag = '\u003cthink\u003e';
+        endTag = '\u003c/think\u003e';
+        startIndex = content.indexOf(startTag);
+    }
+    
+    if (startIndex !== -1) {
+        const endIndex = content.indexOf(endTag, startIndex);
+        
+        if (endIndex !== -1) {
+            // Completed thinking block
+            // We extract the thinking part and keep the rest (before and after)
+            const before = content.substring(0, startIndex);
+            const thinking = content.substring(startIndex + startTag.length, endIndex).trim();
+            const after = content.substring(endIndex + endTag.length);
+            
+            return {
+                thinking,
+                content: (before + after).trim(),
+                isThinking: false
+            };
+        } else {
+            // Incomplete thinking block (still streaming)
+            const before = content.substring(0, startIndex);
+            const thinking = content.substring(startIndex + startTag.length).trim();
+            
+            return {
+                thinking,
+                content: before.trim(),
+                isThinking: true
+            };
+        }
+    }
+    
+    return { thinking: null, content, isThinking: false };
+  }
+
+  function renderMarkdown(content: string): string {
+    if (!content) return '';
+    try {
+      // marked.parse returns string synchronously when async is false (default)
+      return marked(content, { breaks: true, gfm: true }) as string;
+    } catch {
+      return content;
+    }
+  }
+
+  function scrollToBottom() {
+    if (messagesContainer) {
+      setTimeout(() => {
+        if (messagesContainer) {
+          messagesContainer.scrollTop = messagesContainer.scrollHeight;
+        }
+      }, 0);
+    }
+  }
+
+  onMount(() => {
+    assistantState.init();
+  });
+
+  // Scroll to bottom when messages change
+  $effect(() => {
+    // Access reactive state
+    const _len = assistantState.messages.length;
+    const _processing = assistantState.isProcessing;
+    // Scroll on next tick
+    if (_len > 0 || _processing) {
+      scrollToBottom();
+    }
+  });
+
+  async function handleSubmit() {
+    if (!input.trim() || assistantState.isProcessing) return;
+    const text = input;
+    input = '';
+    const provider = settingsState.settings.assistant.llm_provider;
+    const endpoint = provider === 'ollama' 
+      ? settingsState.settings.assistant.ollama_endpoint 
+      : settingsState.settings.assistant.openai_endpoint;
+    await assistantState.sendMessage(
+      text, 
+      settingsState.settings.assistant.enabled,
+      provider,
+      endpoint
+    );
+  }
+
+  function handleKeydown(e: KeyboardEvent) {
+    if (e.key === 'Enter' && !e.shiftKey) {
+      e.preventDefault();
+      handleSubmit();
+    }
+  }
+
+  function getProviderName(): string {
+    const provider = settingsState.settings.assistant.llm_provider;
+    if (provider === 'ollama') {
+      return `Ollama (${settingsState.settings.assistant.ollama_model})`;
+    } else if (provider === 'openai') {
+      return `OpenAI (${settingsState.settings.assistant.openai_model})`;
+    }
+    return provider;
+  }
+
+  function getProviderHelpText(): string {
+    const provider = settingsState.settings.assistant.llm_provider;
+    if (provider === 'ollama') {
+      return `Please ensure Ollama is installed and running at ${settingsState.settings.assistant.ollama_endpoint}.`;
+    } else if (provider === 'openai') {
+      return "Please check your OpenAI API key in Settings > AI Assistant.";
+    }
+    return "";
+  }
+</script>
+
+<div class="h-full w-full flex flex-col gap-4 p-4 lg:p-8 animate-in fade-in zoom-in-95 duration-300">
+  <div class="flex items-center justify-between mb-2">
+    <div class="flex items-center gap-3">
+      <div class="p-2 bg-indigo-500/20 rounded-lg text-indigo-400">
+        <Bot size={24} />
+      </div>
+      <div>
+        <h2 class="text-2xl font-bold">Game Assistant</h2>
+        <p class="text-zinc-400 text-sm">Powered by {getProviderName()}</p>
+      </div>
+    </div>
+    
+    <div class="flex items-center gap-2">
+       {#if !settingsState.settings.assistant.enabled}
+        <div class="flex items-center gap-2 px-3 py-1.5 bg-zinc-500/10 text-zinc-400 rounded-full text-xs font-medium border border-zinc-500/20">
+            <AlertTriangle size={14} />
+            <span>Disabled</span>
+        </div>
+       {:else if !assistantState.isProviderHealthy}
+        <div class="flex items-center gap-2 px-3 py-1.5 bg-red-500/10 text-red-400 rounded-full text-xs font-medium border border-red-500/20">
+            <AlertTriangle size={14} />
+            <span>Offline</span>
+        </div>
+       {:else}
+        <div class="flex items-center gap-2 px-3 py-1.5 bg-emerald-500/10 text-emerald-400 rounded-full text-xs font-medium border border-emerald-500/20">
+            <div class="w-2 h-2 rounded-full bg-emerald-500 animate-pulse"></div>
+            <span>Online</span>
+        </div>
+       {/if}
+
+       <button 
+         onclick={() => assistantState.checkHealth()}
+         class="p-2 hover:bg-white/5 rounded-lg text-zinc-400 hover:text-white transition-colors"
+         title="Check Connection"
+       >
+         <RefreshCw size={18} class={assistantState.isProcessing ? "animate-spin" : ""} />
+       </button>
+       
+       <button 
+         onclick={() => assistantState.clearHistory()}
+         class="p-2 hover:bg-white/5 rounded-lg text-zinc-400 hover:text-white transition-colors"
+         title="Clear History"
+       >
+         <Trash2 size={18} />
+       </button>
+
+       <button 
+         onclick={() => uiState.setView('settings')}
+         class="p-2 hover:bg-white/5 rounded-lg text-zinc-400 hover:text-white transition-colors"
+         title="Settings"
+       >
+         <Settings size={18} />
+       </button>
+    </div>
+  </div>
+
+  <!-- Chat Area -->
+  <div class="flex-1 bg-black/20 border border-white/5 rounded-xl overflow-hidden flex flex-col relative">
+    {#if assistantState.messages.length === 0}
+      <div class="absolute inset-0 flex flex-col items-center justify-center text-zinc-500 gap-4 p-8 text-center">
+        <Bot size={48} class="opacity-20" />
+        <div class="max-w-md">
+            <p class="text-lg font-medium text-zinc-300 mb-2">How can I help you today?</p>
+            <p class="text-sm opacity-70">I can analyze your game logs, diagnose crashes, or explain mod features.</p>
+        </div>
+        {#if !settingsState.settings.assistant.enabled}
+            <div class="bg-zinc-500/10 border border-zinc-500/20 rounded-lg p-4 text-sm text-zinc-400 mt-4 max-w-sm">
+                Assistant is disabled. Enable it in <button onclick={() => uiState.setView('settings')} class="text-indigo-400 hover:underline">Settings > AI Assistant</button>.
+            </div>
+        {:else if !assistantState.isProviderHealthy}
+            <div class="bg-red-500/10 border border-red-500/20 rounded-lg p-4 text-sm text-red-400 mt-4 max-w-sm">
+                {getProviderHelpText()}
+            </div>
+        {/if}
+      </div>
+    {/if}
+
+    <div 
+        bind:this={messagesContainer}
+        class="flex-1 overflow-y-auto p-4 space-y-4 scroll-smooth"
+    >
+      {#each assistantState.messages as msg, idx}
+        <div class="flex gap-3 {msg.role === 'user' ? 'justify-end' : 'justify-start'}">
+          {#if msg.role === 'assistant'}
+            <div class="w-8 h-8 rounded-full bg-indigo-500/20 flex items-center justify-center text-indigo-400 shrink-0 mt-1">
+              <Bot size={16} />
+            </div>
+          {/if}
+          
+          <div class="max-w-[80%] p-3 rounded-2xl {msg.role === 'user' ? 'bg-indigo-600 text-white rounded-tr-none' : 'bg-zinc-800/50 text-zinc-200 rounded-tl-none border border-white/5'}">
+            {#if msg.role === 'user'}
+              <div class="break-words whitespace-pre-wrap">
+                {msg.content}
+              </div>
+            {:else}
+              {@const parsed = parseMessageContent(msg.content)}
+              
+              <!-- Thinking Block -->
+              {#if parsed.thinking}
+                  <div class="mb-3 max-w-full overflow-hidden">
+                      <details class="group" open={parsed.isThinking}>
+                          <summary class="list-none cursor-pointer flex items-center gap-2 text-zinc-500 hover:text-zinc-300 transition-colors text-xs font-medium select-none bg-black/20 p-2 rounded-lg border border-white/5 w-fit mb-2 outline-none">
+                              <Brain size={14} />
+                              <span>Thinking Process</span>
+                              <ChevronDown size={14} class="transition-transform duration-200 group-open:rotate-180" />
+                          </summary>
+                          <div class="pl-3 border-l-2 border-zinc-700 text-zinc-500 text-xs italic leading-relaxed whitespace-pre-wrap font-mono max-h-96 overflow-y-auto custom-scrollbar bg-black/10 p-2 rounded-r-md">
+                              {parsed.thinking}
+                              {#if parsed.isThinking}
+                                  <span class="inline-block w-1.5 h-3 bg-zinc-500 ml-1 animate-pulse align-middle"></span>
+                              {/if}
+                          </div>
+                      </details>
+                  </div>
+              {/if}
+
+              <!-- Markdown rendered content for assistant -->
+              <div class="markdown-content prose prose-invert prose-sm max-w-none">
+                {#if parsed.content}
+                  {@html renderMarkdown(parsed.content)}
+                {:else if assistantState.isProcessing && idx === assistantState.messages.length - 1 && !parsed.isThinking}
+                  <span class="inline-flex items-center gap-1">
+                    <span class="w-2 h-2 bg-zinc-400 rounded-full animate-pulse"></span>
+                    <span class="w-2 h-2 bg-zinc-400 rounded-full animate-pulse" style="animation-delay: 0.2s"></span>
+                    <span class="w-2 h-2 bg-zinc-400 rounded-full animate-pulse" style="animation-delay: 0.4s"></span>
+                  </span>
+                {/if}
+              </div>
+
+              <!-- Generation Stats -->
+              {#if msg.stats}
+                <div class="mt-3 pt-3 border-t border-white/5 text-[10px] text-zinc-500 font-mono flex flex-wrap gap-x-4 gap-y-1 opacity-70 hover:opacity-100 transition-opacity select-none">
+                    <div class="flex gap-1" title="Tokens generated">
+                        <span>Eval:</span>
+                        <span class="text-zinc-400">{msg.stats.eval_count} tokens</span>
+                    </div>
+                    <div class="flex gap-1" title="Total duration">
+                        <span>Time:</span>
+                        <span class="text-zinc-400">{(msg.stats.total_duration / 1e9).toFixed(2)}s</span>
+                    </div>
+                    {#if msg.stats.eval_duration > 0}
+                        <div class="flex gap-1" title="Generation speed">
+                            <span>Speed:</span>
+                            <span class="text-zinc-400">{(msg.stats.eval_count / (msg.stats.eval_duration / 1e9)).toFixed(1)} t/s</span>
+                        </div>
+                    {/if}
+                </div>
+              {/if}
+            {/if}
+          </div>
+        </div>
+      {/each}
+    </div>
+
+    <!-- Input Area -->
+    <div class="p-4 bg-zinc-900/50 border-t border-white/5">
+      <div class="relative">
+        <textarea
+          bind:value={input}
+          onkeydown={handleKeydown}
+          placeholder={settingsState.settings.assistant.enabled ? "Ask about your game..." : "Assistant is disabled..."}
+          class="w-full bg-black/20 border border-white/10 rounded-xl py-3 pl-4 pr-12 focus:outline-none focus:border-indigo-500/50 focus:ring-1 focus:ring-indigo-500/50 resize-none h-[52px] max-h-32 transition-all text-white disabled:opacity-50"
+          disabled={assistantState.isProcessing || !settingsState.settings.assistant.enabled}
+        ></textarea>
+        
+        <button
+          onclick={handleSubmit}
+          disabled={!input.trim() || assistantState.isProcessing || !settingsState.settings.assistant.enabled}
+          class="absolute right-2 top-2 p-2 bg-indigo-600 hover:bg-indigo-500 disabled:opacity-50 disabled:hover:bg-indigo-600 text-white rounded-lg transition-colors"
+        >
+          <Send size={16} />
+        </button>
+      </div>
+    </div>
+  </div>
+</div>
+
+<style>
+  /* Markdown content styles */
+  .markdown-content :global(p) {
+    margin-bottom: 0.5rem;
+  }
+  
+  .markdown-content :global(p:last-child) {
+    margin-bottom: 0;
+  }
+  
+  .markdown-content :global(pre) {
+    background-color: rgba(0, 0, 0, 0.4);
+    border-radius: 0.5rem;
+    padding: 0.75rem;
+    overflow-x: auto;
+    margin: 0.5rem 0;
+  }
+  
+  .markdown-content :global(code) {
+    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
+    font-size: 0.85em;
+  }
+  
+  .markdown-content :global(pre code) {
+    background: none;
+    padding: 0;
+  }
+  
+  .markdown-content :global(:not(pre) > code) {
+    background-color: rgba(0, 0, 0, 0.3);
+    padding: 0.15rem 0.4rem;
+    border-radius: 0.25rem;
+  }
+  
+  .markdown-content :global(ul),
+  .markdown-content :global(ol) {
+    margin: 0.5rem 0;
+    padding-left: 1.5rem;
+  }
+  
+  .markdown-content :global(li) {
+    margin: 0.25rem 0;
+  }
+  
+  .markdown-content :global(blockquote) {
+    border-left: 3px solid rgba(99, 102, 241, 0.5);
+    padding-left: 1rem;
+    margin: 0.5rem 0;
+    color: rgba(255, 255, 255, 0.7);
+  }
+  
+  .markdown-content :global(h1),
+  .markdown-content :global(h2),
+  .markdown-content :global(h3),
+  .markdown-content :global(h4) {
+    font-weight: 600;
+    margin: 0.75rem 0 0.5rem 0;
+  }
+  
+  .markdown-content :global(h1) {
+    font-size: 1.25rem;
+  }
+  
+  .markdown-content :global(h2) {
+    font-size: 1.125rem;
+  }
+  
+  .markdown-content :global(h3) {
+    font-size: 1rem;
+  }
+  
+  .markdown-content :global(a) {
+    color: rgb(129, 140, 248);
+    text-decoration: underline;
+  }
+  
+  .markdown-content :global(a:hover) {
+    color: rgb(165, 180, 252);
+  }
+  
+  .markdown-content :global(table) {
+    border-collapse: collapse;
+    margin: 0.5rem 0;
+    width: 100%;
+  }
+  
+  .markdown-content :global(th),
+  .markdown-content :global(td) {
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    padding: 0.5rem;
+    text-align: left;
+  }
+  
+  .markdown-content :global(th) {
+    background-color: rgba(0, 0, 0, 0.3);
+    font-weight: 600;
+  }
+  
+  .markdown-content :global(hr) {
+    border: none;
+    border-top: 1px solid rgba(255, 255, 255, 0.1);
+    margin: 1rem 0;
+  }
+  
+  .markdown-content :global(img) {
+    max-width: 100%;
+    border-radius: 0.5rem;
+  }
+  
+  .markdown-content :global(strong) {
+    font-weight: 600;
+  }
+  
+  .markdown-content :global(em) {
+    font-style: italic;
+  }
+</style>
diff --git a/packages/ui/src/components/BottomBar.svelte b/packages/ui/src/components/BottomBar.svelte
new file mode 100644
index 0000000..19cf35d
--- /dev/null
+++ b/packages/ui/src/components/BottomBar.svelte
@@ -0,0 +1,250 @@
+<script lang="ts">
+  import { invoke } from "@tauri-apps/api/core";
+  import { listen, type UnlistenFn } from "@tauri-apps/api/event";
+  import { authState } from "../stores/auth.svelte";
+  import { gameState } from "../stores/game.svelte";
+  import { uiState } from "../stores/ui.svelte";
+  import { instancesState } from "../stores/instances.svelte";
+  import { Terminal, ChevronDown, Play, User, Check } from 'lucide-svelte';
+
+  interface InstalledVersion {
+    id: string;
+    type: string;
+  }
+
+  let isVersionDropdownOpen = $state(false);
+  let dropdownRef: HTMLDivElement;
+  let installedVersions = $state<InstalledVersion[]>([]);
+  let isLoadingVersions = $state(true);
+  let downloadCompleteUnlisten: UnlistenFn | null = null;
+  let versionDeletedUnlisten: UnlistenFn | null = null;
+
+  // Load installed versions on mount
+  $effect(() => {
+    loadInstalledVersions();
+    setupEventListeners();
+    return () => {
+      if (downloadCompleteUnlisten) {
+        downloadCompleteUnlisten();
+      }
+      if (versionDeletedUnlisten) {
+        versionDeletedUnlisten();
+      }
+    };
+  });
+
+  async function setupEventListeners() {
+    // Refresh list when a download completes
+    downloadCompleteUnlisten = await listen("download-complete", () => {
+      loadInstalledVersions();
+    });
+    // Refresh list when a version is deleted
+    versionDeletedUnlisten = await listen("version-deleted", () => {
+      loadInstalledVersions();
+    });
+  }
+
+  async function loadInstalledVersions() {
+    if (!instancesState.activeInstanceId) {
+      installedVersions = [];
+      isLoadingVersions = false;
+      return;
+    }
+    isLoadingVersions = true;
+    try {
+      installedVersions = await invoke<InstalledVersion[]>("list_installed_versions", {
+        instanceId: instancesState.activeInstanceId,
+      });
+      // If no version is selected but we have installed versions, select the first one
+      if (!gameState.selectedVersion && installedVersions.length > 0) {
+        gameState.selectedVersion = installedVersions[0].id;
+      }
+    } catch (e) {
+      console.error("Failed to load installed versions:", e);
+    } finally {
+      isLoadingVersions = false;
+    }
+  }
+
+  let versionOptions = $derived(
+    isLoadingVersions 
+      ? [{ id: "loading", type: "loading", label: "Loading..." }]
+      : installedVersions.length === 0
+        ? [{ id: "empty", type: "empty", label: "No versions installed" }]
+        : installedVersions.map(v => ({
+            ...v,
+            label: `${v.id}${v.type !== 'release' ? ` (${v.type})` : ''}`
+          }))
+  );
+
+  function selectVersion(id: string) {
+    if (id !== "loading" && id !== "empty") {
+      gameState.selectedVersion = id;
+      isVersionDropdownOpen = false;
+    }
+  }
+
+  function handleClickOutside(e: MouseEvent) {
+    if (dropdownRef && !dropdownRef.contains(e.target as Node)) {
+      isVersionDropdownOpen = false;
+    }
+  }
+
+  $effect(() => {
+    if (isVersionDropdownOpen) {
+      document.addEventListener('click', handleClickOutside);
+      return () => document.removeEventListener('click', handleClickOutside);
+    }
+  });
+
+  function getVersionTypeColor(type: string) {
+    switch (type) {
+      case 'fabric': return 'text-indigo-400';
+      case 'forge': return 'text-orange-400';
+      case 'snapshot': return 'text-amber-400';
+      case 'modpack': return 'text-purple-400';
+      default: return 'text-emerald-400';
+    }
+  }
+</script>
+
+<div
+  class="h-20 bg-white/80 dark:bg-[#09090b]/90 border-t dark:border-white/10 border-black/5 flex items-center px-8 justify-between z-20 backdrop-blur-md"
+>
+  <!-- Account Area -->
+  <div class="flex items-center gap-6">
+    <div
+      class="group flex items-center gap-4 cursor-pointer"
+      onclick={() => authState.openLoginModal()}
+      role="button"
+      tabindex="0"
+      onkeydown={(e) => e.key === "Enter" && authState.openLoginModal()}
+    >
+      <div
+        class="w-10 h-10 rounded-sm bg-zinc-100 dark:bg-zinc-800 border border-zinc-200 dark:border-zinc-700 flex items-center justify-center overflow-hidden transition-all group-hover:border-zinc-400 dark:group-hover:border-zinc-500"
+      >
+        {#if authState.currentAccount}
+          <img
+            src={`https://minotar.net/avatar/${authState.currentAccount.username}/48`}
+            alt={authState.currentAccount.username}
+            class="w-full h-full"
+          />
+        {:else}
+          <User size={20} class="text-zinc-400" />
+        {/if}
+      </div>
+      <div>
+        <div class="font-bold dark:text-white text-gray-900 text-sm group-hover:text-black dark:group-hover:text-zinc-200 transition-colors">
+          {authState.currentAccount ? authState.currentAccount.username : "Login Account"}
+        </div>
+        <div class="text-[10px] uppercase tracking-wider dark:text-zinc-500 text-gray-500 flex items-center gap-2">
+          {#if authState.currentAccount}
+            {#if authState.currentAccount.type === "Microsoft"}
+              {#if authState.currentAccount.expires_at && authState.currentAccount.expires_at * 1000 < Date.now()}
+                <span class="w-1.5 h-1.5 rounded-full bg-red-500"></span>
+                <span class="text-red-400">Expired</span>
+              {:else}
+                <span class="w-1.5 h-1.5 rounded-full bg-emerald-500"></span>
+                Online
+              {/if}
+            {:else}
+              <span class="w-1.5 h-1.5 rounded-full bg-amber-500"></span>
+              Offline
+            {/if}
+          {:else}
+            <span class="w-1.5 h-1.5 rounded-full bg-zinc-400"></span>
+            Guest
+          {/if}
+        </div>
+      </div>
+    </div>
+    
+    <div class="h-8 w-px dark:bg-white/10 bg-black/10"></div>
+    
+    <!-- Console Toggle -->
+    <button
+      class="text-xs font-mono dark:text-zinc-500 text-gray-500 dark:hover:text-white hover:text-black transition-colors flex items-center gap-2 px-2 py-1 rounded-sm hover:bg-black/5 dark:hover:bg-white/5"
+      onclick={() => uiState.toggleConsole()}
+    >
+      <Terminal size={14} />
+      {uiState.showConsole ? "HIDE LOGS" : "SHOW LOGS"}
+    </button>
+  </div>
+
+  <!-- Action Area -->
+  <div class="flex items-center gap-4">
+    <div class="flex flex-col items-end mr-2">
+      <!-- Custom Version Dropdown -->
+      <div class="relative" bind:this={dropdownRef}>
+        <button
+            type="button"
+            onclick={() => isVersionDropdownOpen = !isVersionDropdownOpen}
+            disabled={installedVersions.length === 0 && !isLoadingVersions}
+            class="flex items-center justify-between gap-2 w-56 px-4 py-2.5 text-left
+                   dark:bg-zinc-900 bg-zinc-50 border dark:border-zinc-700 border-zinc-300 rounded-md 
+                   text-sm font-mono dark:text-white text-gray-900
+                   dark:hover:border-zinc-600 hover:border-zinc-400 
+                   focus:border-indigo-500 focus:ring-1 focus:ring-indigo-500/30
+                   transition-colors cursor-pointer outline-none
+                   disabled:opacity-50 disabled:cursor-not-allowed"
+          >
+          <span class="truncate">
+            {#if isLoadingVersions}
+              Loading...
+            {:else if installedVersions.length === 0}
+              No versions installed
+            {:else}
+              {gameState.selectedVersion || "Select version"}
+            {/if}
+          </span>
+          <ChevronDown 
+            size={14} 
+            class="shrink-0 dark:text-zinc-500 text-zinc-400 transition-transform duration-200 {isVersionDropdownOpen ? 'rotate-180' : ''}" 
+          />
+        </button>
+
+        {#if isVersionDropdownOpen && installedVersions.length > 0}
+          <div 
+            class="absolute z-50 w-full mt-1 py-1 dark:bg-zinc-900 bg-white border dark:border-zinc-700 border-zinc-300 rounded-md shadow-xl
+                   max-h-72 overflow-y-auto animate-in fade-in slide-in-from-top-1 duration-150 bottom-full mb-1 right-0"
+          >
+            {#each versionOptions as version}
+              <button
+                type="button"
+                onclick={() => selectVersion(version.id)}
+                disabled={version.id === "loading" || version.id === "empty"}
+                class="w-full flex items-center justify-between px-3 py-2 text-sm font-mono text-left
+                       transition-colors outline-none
+                       {version.id === gameState.selectedVersion 
+                         ? 'bg-indigo-600 text-white' 
+                         : 'dark:text-zinc-300 text-gray-700 dark:hover:bg-zinc-800 hover:bg-zinc-100'}
+                       {version.id === 'loading' || version.id === 'empty' ? 'opacity-50 cursor-not-allowed' : 'cursor-pointer'}"
+              >
+                <span class="truncate flex items-center gap-2">
+                  {version.id}
+                  {#if version.type && version.type !== 'release' && version.type !== 'loading' && version.type !== 'empty'}
+                    <span class="text-[10px] uppercase {version.id === gameState.selectedVersion ? 'text-white/70' : getVersionTypeColor(version.type)}">
+                      {version.type}
+                    </span>
+                  {/if}
+                </span>
+                {#if version.id === gameState.selectedVersion}
+                  <Check size={14} class="shrink-0 ml-2" />
+                {/if}
+              </button>
+            {/each}
+          </div>
+        {/if}
+      </div>
+    </div>
+
+    <button
+      onclick={() => gameState.startGame()}
+      disabled={installedVersions.length === 0 || !gameState.selectedVersion}
+      class="bg-emerald-600 hover:bg-emerald-500 disabled:opacity-50 disabled:cursor-not-allowed text-white h-14 px-10 rounded-sm transition-all duration-200 hover:scale-[1.02] active:scale-[0.98] shadow-lg shadow-emerald-500/20 flex items-center gap-3 font-bold text-lg tracking-widest uppercase"
+    >
+      <Play size={24} fill="currentColor" />
+      <span>Launch</span>
+    </button>
+  </div>
+</div>
diff --git a/packages/ui/src/components/ConfigEditorModal.svelte b/packages/ui/src/components/ConfigEditorModal.svelte
new file mode 100644
index 0000000..dd866ee
--- /dev/null
+++ b/packages/ui/src/components/ConfigEditorModal.svelte
@@ -0,0 +1,369 @@
+<script lang="ts">
+  import { settingsState } from "../stores/settings.svelte";
+  import { Save, X, FileJson, AlertCircle, Undo, Redo, Settings } from "lucide-svelte";
+  import Prism from 'prismjs';
+  import 'prismjs/components/prism-json';
+  import 'prismjs/themes/prism-tomorrow.css';
+
+  let content = $state(settingsState.rawConfigContent);
+  let isSaving = $state(false);
+  let localError = $state("");
+  
+  let textareaRef: HTMLTextAreaElement | undefined = $state();
+  let preRef: HTMLPreElement | undefined = $state();
+  let lineNumbersRef: HTMLDivElement | undefined = $state();
+
+  // Textarea attributes that TypeScript doesn't recognize but are valid HTML
+  const textareaAttrs = {
+    autocorrect: "off",
+    autocapitalize: "off"
+  } as Record<string, string>;
+
+  // History State
+  let history = $state([settingsState.rawConfigContent]);
+  let historyIndex = $state(0);
+  let debounceTimer: ReturnType<typeof setTimeout> | undefined;
+
+  // Editor Settings
+  let showLineNumbers = $state(localStorage.getItem('editor_showLineNumbers') !== 'false');
+  let showStatusBar = $state(localStorage.getItem('editor_showStatusBar') !== 'false');
+  let showSettings = $state(false);
+
+  // Cursor Status
+  let cursorLine = $state(1);
+  let cursorCol = $state(1);
+  
+  let lines = $derived(content.split('\n'));
+
+  $effect(() => {
+     localStorage.setItem('editor_showLineNumbers', String(showLineNumbers));
+     localStorage.setItem('editor_showStatusBar', String(showStatusBar));
+  });
+
+  // Cleanup timer on destroy
+  $effect(() => {
+    return () => {
+        if (debounceTimer) clearTimeout(debounceTimer);
+    };
+  });
+
+  // Initial validation
+  $effect(() => {
+    validate(content);
+  });
+
+  function validate(text: string) {
+    try {
+        JSON.parse(text);
+        localError = "";
+    } catch (e: any) {
+        localError = e.message;
+    }
+  }
+
+  function pushHistory(newContent: string, immediate = false) {
+      if (debounceTimer) clearTimeout(debounceTimer);
+      
+      const commit = () => {
+          if (newContent === history[historyIndex]) return;
+          const next = history.slice(0, historyIndex + 1);
+          next.push(newContent);
+          history = next;
+          historyIndex = next.length - 1;
+      };
+
+      if (immediate) {
+          commit();
+      } else {
+          debounceTimer = setTimeout(commit, 500);
+      }
+  }
+
+  function handleUndo() {
+      if (historyIndex > 0) {
+          historyIndex--;
+          content = history[historyIndex];
+          validate(content);
+      }
+  }
+
+  function handleRedo() {
+      if (historyIndex < history.length - 1) {
+          historyIndex++;
+          content = history[historyIndex];
+          validate(content);
+      }
+  }
+
+  function updateCursor() {
+      if (!textareaRef) return;
+      const pos = textareaRef.selectionStart;
+      const text = textareaRef.value.substring(0, pos);
+      const lines = text.split('\n');
+      cursorLine = lines.length;
+      cursorCol = lines[lines.length - 1].length + 1;
+  }
+
+  function handleInput(e: Event) {
+      const target = e.target as HTMLTextAreaElement;
+      content = target.value;
+      validate(content);
+      pushHistory(content);
+      updateCursor();
+  }
+
+  function handleScroll() {
+      if (textareaRef) {
+          if (preRef) {
+              preRef.scrollTop = textareaRef.scrollTop;
+              preRef.scrollLeft = textareaRef.scrollLeft;
+          }
+          if (lineNumbersRef) {
+              lineNumbersRef.scrollTop = textareaRef.scrollTop;
+          }
+      }
+  }
+
+  let highlightedCode = $derived(
+      Prism.highlight(content, Prism.languages.json, 'json') + '\n'
+  );
+
+  async function handleSave(close = false) {
+    if (localError) return;
+    isSaving = true;
+    await settingsState.saveRawConfig(content, close);
+    isSaving = false;
+  }
+
+  function handleKeydown(e: KeyboardEvent) {
+    // Save
+    if (e.key === 's' && (e.ctrlKey || e.metaKey)) {
+      e.preventDefault();
+      handleSave(false); // Keep open on shortcut save
+    } 
+    // Undo
+    else if (e.key === 'z' && (e.ctrlKey || e.metaKey) && !e.shiftKey) {
+        e.preventDefault();
+        handleUndo();
+    }
+    // Redo (Ctrl+Shift+Z or Ctrl+Y)
+    else if (
+        (e.key === 'z' && (e.ctrlKey || e.metaKey) && e.shiftKey) ||
+        (e.key === 'y' && (e.ctrlKey || e.metaKey))
+    ) {
+        e.preventDefault();
+        handleRedo();
+    }
+    // Close
+    else if (e.key === 'Escape') {
+      settingsState.closeConfigEditor();
+    } 
+    // Tab
+    else if (e.key === 'Tab') {
+      e.preventDefault();
+      const target = e.target as HTMLTextAreaElement;
+      const start = target.selectionStart;
+      const end = target.selectionEnd;
+      
+      pushHistory(content, true);
+
+      const newContent = content.substring(0, start) + "  " + content.substring(end);
+      content = newContent;
+      
+      pushHistory(content, true);
+
+      setTimeout(() => {
+          target.selectionStart = target.selectionEnd = start + 2;
+          updateCursor();
+      }, 0);
+      validate(content);
+    }
+  }
+</script>
+
+<div class="fixed inset-0 z-[100] flex items-center justify-center backdrop-blur-sm bg-black/70 animate-in fade-in duration-200">
+  <div 
+    class="bg-[#1d1f21] rounded-xl border border-zinc-700 shadow-2xl w-[900px] max-w-[95vw] h-[85vh] flex flex-col overflow-hidden"
+    role="dialog"
+    aria-modal="true"
+  >
+    <!-- Header -->
+    <div class="flex items-center justify-between p-4 border-b border-zinc-700 bg-[#1d1f21] z-20 relative">
+      <div class="flex items-center gap-3">
+        <div class="p-2 bg-indigo-500/20 rounded-lg text-indigo-400">
+          <FileJson size={20} />
+        </div>
+        <div class="flex flex-col">
+            <h3 class="text-lg font-bold text-white leading-none">Configuration Editor</h3>
+            <span class="text-[10px] text-zinc-500 font-mono mt-1 break-all">{settingsState.configFilePath}</span>
+        </div>
+      </div>
+      <div class="flex items-center gap-2">
+          <!-- Undo/Redo Buttons -->
+          <div class="flex items-center bg-zinc-800 rounded-lg p-0.5 mr-2 border border-zinc-700">
+              <button 
+                onclick={handleUndo} 
+                disabled={historyIndex === 0}
+                class="p-1.5 text-zinc-400 hover:text-white hover:bg-zinc-700 rounded disabled:opacity-30 disabled:hover:bg-transparent transition-colors"
+                title="Undo (Ctrl+Z)"
+              >
+                  <Undo size={16} />
+              </button>
+              <button 
+                onclick={handleRedo} 
+                disabled={historyIndex === history.length - 1}
+                class="p-1.5 text-zinc-400 hover:text-white hover:bg-zinc-700 rounded disabled:opacity-30 disabled:hover:bg-transparent transition-colors"
+                title="Redo (Ctrl+Y)"
+              >
+                  <Redo size={16} />
+              </button>
+          </div>
+
+          <!-- Settings Toggle -->
+          <div class="relative">
+              <button 
+                onclick={() => showSettings = !showSettings}
+                class="text-zinc-400 hover:text-white transition-colors p-2 hover:bg-white/5 rounded-lg {showSettings ? 'bg-white/10 text-white' : ''}"
+                title="Editor Settings"
+              >
+                <Settings size={20} />
+              </button>
+              
+              {#if showSettings}
+                <div class="absolute right-0 top-full mt-2 w-48 bg-zinc-800 border border-zinc-700 rounded-lg shadow-xl p-2 z-50 flex flex-col gap-1">
+                    <label class="flex items-center gap-2 p-2 hover:bg-white/5 rounded cursor-pointer">
+                        <input type="checkbox" bind:checked={showLineNumbers} class="rounded border-zinc-600 bg-zinc-900 text-indigo-500 focus:ring-indigo-500/50" />
+                        <span class="text-sm text-zinc-300">Line Numbers</span>
+                    </label>
+                    <label class="flex items-center gap-2 p-2 hover:bg-white/5 rounded cursor-pointer">
+                        <input type="checkbox" bind:checked={showStatusBar} class="rounded border-zinc-600 bg-zinc-900 text-indigo-500 focus:ring-indigo-500/50" />
+                        <span class="text-sm text-zinc-300">Cursor Status</span>
+                    </label>
+                </div>
+              {/if}
+          </div>
+
+          <button
+            onclick={() => settingsState.closeConfigEditor()}
+            class="text-zinc-400 hover:text-white transition-colors p-2 hover:bg-white/5 rounded-lg"
+            title="Close (Esc)"
+          >
+            <X size={20} />
+          </button>
+      </div>
+    </div>
+
+    <!-- Error Banner -->
+    {#if localError || settingsState.configEditorError}
+        <div class="bg-red-500/10 border-b border-red-500/20 p-3 flex items-start gap-3 animate-in slide-in-from-top-2 z-10 relative">
+            <AlertCircle size={16} class="text-red-400 mt-0.5 shrink-0" />
+            <p class="text-xs text-red-300 font-mono whitespace-pre-wrap">{localError || settingsState.configEditorError}</p>
+        </div>
+    {/if}
+
+    <!-- Editor Body (Flex row for line numbers + code) -->
+    <div class="flex-1 flex overflow-hidden relative bg-[#1d1f21]">
+        <!-- Line Numbers -->
+        {#if showLineNumbers}
+            <div 
+                bind:this={lineNumbersRef}
+                class="pt-4 pb-4 pr-3 pl-2 text-right text-zinc-600 bg-[#1d1f21] border-r border-zinc-700/50 font-mono select-none overflow-hidden min-w-[3rem]"
+                aria-hidden="true"
+            >
+                {#each lines as _, i}
+                    <div class="leading-[20px] text-[13px]">{i + 1}</div>
+                {/each}
+            </div>
+        {/if}
+
+        <!-- Code Area -->
+        <div class="flex-1 relative overflow-hidden group">
+            <!-- Highlighted Code (Background) -->
+            <pre 
+                bind:this={preRef}
+                aria-hidden="true"
+                class="absolute inset-0 w-full h-full p-4 m-0 bg-transparent pointer-events-none overflow-hidden whitespace-pre font-mono text-sm leading-relaxed"
+            ><code class="language-json">{@html highlightedCode}</code></pre>
+
+            <!-- Textarea (Foreground) -->
+            <textarea
+                bind:this={textareaRef}
+                bind:value={content}
+                oninput={handleInput}
+                onkeydown={handleKeydown}
+                onscroll={handleScroll}
+                onmouseup={updateCursor}
+                onkeyup={updateCursor}
+                onclick={() => showSettings = false}
+                class="absolute inset-0 w-full h-full p-4 bg-transparent text-transparent caret-white font-mono text-sm leading-relaxed resize-none focus:outline-none whitespace-pre overflow-auto z-10 selection:bg-indigo-500/30"
+                spellcheck="false"
+                {...textareaAttrs}
+            ></textarea>
+        </div>
+    </div>
+
+    <!-- Footer -->
+    <div class="p-3 border-t border-zinc-700 bg-[#1d1f21] flex justify-between items-center z-20 relative">
+      <div class="text-xs text-zinc-500 flex gap-4 items-center">
+        {#if showStatusBar}
+            <div class="flex gap-3 font-mono border-r border-zinc-700 pr-4 mr-1">
+                <span>Ln {cursorLine}</span>
+                <span>Col {cursorCol}</span>
+            </div>
+        {/if}
+        <span class="hidden sm:inline"><span class="bg-white/10 px-1.5 py-0.5 rounded text-zinc-300">Ctrl+S</span> save</span>
+      </div>
+      <div class="flex gap-3">
+        <button
+          onclick={() => settingsState.closeConfigEditor()}
+          class="px-4 py-2 bg-zinc-800 hover:bg-zinc-700 text-white rounded-lg text-sm font-medium transition-colors"
+        >
+          Cancel
+        </button>
+        <button
+          onclick={() => handleSave(false)}
+          disabled={isSaving || !!localError}
+          class="px-4 py-2 bg-indigo-600 hover:bg-indigo-500 disabled:opacity-50 disabled:cursor-not-allowed text-white rounded-lg text-sm font-medium transition-colors flex items-center gap-2"
+          title={localError ? "Fix errors before saving" : "Save changes"}
+        >
+          {#if isSaving}
+            <div class="w-4 h-4 border-2 border-white/30 border-t-white rounded-full animate-spin"></div>
+            Saving...
+          {:else}
+            <Save size={16} />
+            Save
+          {/if}
+        </button>
+      </div>
+    </div>
+  </div>
+</div>
+
+<style>
+  /* Ensure exact font match */
+  pre, textarea {
+      font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
+      font-size: 13px !important;
+      line-height: 20px !important;
+      letter-spacing: 0px !important;
+      tab-size: 2;
+  }
+  
+  /* Hide scrollbar for pre but keep it functional for textarea */
+  pre::-webkit-scrollbar {
+    display: none;
+  }
+
+  /* Override Prism background and font weights for alignment */
+  :global(pre[class*="language-"]), :global(code[class*="language-"]) {
+      background: transparent !important;
+      text-shadow: none !important;
+      box-shadow: none !important;
+  }
+
+  /* CRITICAL: Force normal weight to match textarea */
+  :global(.token) {
+      font-weight: normal !important;
+      font-style: normal !important;
+  }
+</style>
diff --git a/packages/ui/src/components/CustomSelect.svelte b/packages/ui/src/components/CustomSelect.svelte
new file mode 100644
index 0000000..0767471
--- /dev/null
+++ b/packages/ui/src/components/CustomSelect.svelte
@@ -0,0 +1,173 @@
+<script lang="ts">
+  import { ChevronDown, Check } from 'lucide-svelte';
+
+  interface Option {
+    value: string;
+    label: string;
+    disabled?: boolean;
+  }
+
+  interface Props {
+    options: Option[];
+    value: string;
+    placeholder?: string;
+    disabled?: boolean;
+    class?: string;
+    allowCustom?: boolean; // New prop to allow custom input
+    onchange?: (value: string) => void;
+  }
+
+  let { 
+    options, 
+    value = $bindable(), 
+    placeholder = "Select...", 
+    disabled = false,
+    class: className = "",
+    allowCustom = false,
+    onchange
+  }: Props = $props();
+
+  let isOpen = $state(false);
+  let containerRef: HTMLDivElement;
+  let customInput = $state(""); // State for custom input
+
+  let selectedOption = $derived(options.find(o => o.value === value));
+  // Display label: if option exists use its label, otherwise if custom is allowed use raw value, else placeholder
+  let displayLabel = $derived(selectedOption ? selectedOption.label : (allowCustom && value ? value : placeholder));
+
+  function toggle() {
+    if (!disabled) {
+      isOpen = !isOpen;
+      // When opening, if current value is custom (not in options), pre-fill input
+      if (isOpen && allowCustom && !selectedOption) {
+          customInput = value;
+      }
+    }
+  }
+
+  function select(option: Option) {
+    if (option.disabled) return;
+    value = option.value;
+    isOpen = false;
+    onchange?.(option.value);
+  }
+
+  function handleCustomSubmit() {
+      if (!customInput.trim()) return;
+      value = customInput.trim();
+      isOpen = false;
+      onchange?.(value);
+  }
+
+  function handleKeydown(e: KeyboardEvent) {
+    if (disabled) return;
+    
+    if (e.key === 'Enter' || e.key === ' ') {
+      e.preventDefault();
+      toggle();
+    } else if (e.key === 'Escape') {
+      isOpen = false;
+    } else if (e.key === 'ArrowDown' && isOpen) {
+      e.preventDefault();
+      const currentIndex = options.findIndex(o => o.value === value);
+      const nextIndex = Math.min(currentIndex + 1, options.length - 1);
+      if (!options[nextIndex].disabled) {
+        value = options[nextIndex].value;
+      }
+    } else if (e.key === 'ArrowUp' && isOpen) {
+      e.preventDefault();
+      const currentIndex = options.findIndex(o => o.value === value);
+      const prevIndex = Math.max(currentIndex - 1, 0);
+      if (!options[prevIndex].disabled) {
+        value = options[prevIndex].value;
+      }
+    }
+  }
+
+  function handleClickOutside(e: MouseEvent) {
+    if (containerRef && !containerRef.contains(e.target as Node)) {
+      isOpen = false;
+    }
+  }
+
+  $effect(() => {
+    if (isOpen) {
+      document.addEventListener('click', handleClickOutside);
+      return () => document.removeEventListener('click', handleClickOutside);
+    }
+  });
+</script>
+
+<div 
+  bind:this={containerRef}
+  class="relative {className}"
+>
+  <!-- Trigger Button -->
+  <button
+    type="button"
+    onclick={toggle}
+    onkeydown={handleKeydown}
+    {disabled}
+    class="w-full flex items-center justify-between gap-2 px-3 py-2 pr-8 text-left
+           bg-zinc-900 border border-zinc-700 rounded-md text-sm text-zinc-200
+           hover:border-zinc-600 focus:border-indigo-500 focus:ring-1 focus:ring-indigo-500/30
+           transition-colors cursor-pointer outline-none
+           disabled:opacity-50 disabled:cursor-not-allowed disabled:hover:border-zinc-700"
+  >
+    <span class="truncate {(!selectedOption && !value) ? 'text-zinc-500' : ''}">
+      {displayLabel}
+    </span>
+    <ChevronDown 
+      size={14} 
+      class="absolute right-3 top-1/2 -translate-y-1/2 text-zinc-500 transition-transform duration-200 {isOpen ? 'rotate-180' : ''}" 
+    />
+  </button>
+
+  <!-- Dropdown Menu -->
+  {#if isOpen}
+    <div 
+      class="absolute z-50 w-full mt-1 py-1 bg-zinc-900 border border-zinc-700 rounded-md shadow-xl
+             max-h-60 overflow-y-auto animate-in fade-in slide-in-from-top-1 duration-150 flex flex-col"
+    >
+      {#if allowCustom}
+        <div class="px-2 py-2 border-b border-zinc-700/50 mb-1">
+            <div class="flex gap-2">
+                <input 
+                    type="text" 
+                    bind:value={customInput}
+                    placeholder="Custom value..."
+                    class="flex-1 bg-black/30 border border-zinc-700 rounded px-2 py-1 text-xs text-white focus:border-indigo-500 outline-none"
+                    onkeydown={(e) => e.key === 'Enter' && handleCustomSubmit()}
+                    onclick={(e) => e.stopPropagation()} 
+                />
+                <button 
+                    onclick={(e) => { e.stopPropagation(); handleCustomSubmit(); }}
+                    class="px-2 py-1 bg-indigo-600 hover:bg-indigo-500 text-white rounded text-xs transition-colors"
+                >
+                    Set
+                </button>
+            </div>
+        </div>
+      {/if}
+
+      {#each options as option}
+        <button
+          type="button"
+          onclick={() => select(option)}
+          disabled={option.disabled}
+          class="w-full flex items-center justify-between px-3 py-2 text-sm text-left
+                 transition-colors outline-none
+                 {option.value === value 
+                   ? 'bg-indigo-600 text-white' 
+                   : 'text-zinc-300 hover:bg-zinc-800'}
+                 {option.disabled ? 'opacity-40 cursor-not-allowed' : 'cursor-pointer'}"
+        >
+          <span class="truncate">{option.label}</span>
+          {#if option.value === value}
+            <Check size={14} class="shrink-0 ml-2" />
+          {/if}
+        </button>
+      {/each}
+    </div>
+  {/if}
+</div>
diff --git a/packages/ui/src/components/HomeView.svelte b/packages/ui/src/components/HomeView.svelte
new file mode 100644
index 0000000..573d9da
--- /dev/null
+++ b/packages/ui/src/components/HomeView.svelte
@@ -0,0 +1,271 @@
+<script lang="ts">
+  import { onMount } from 'svelte';
+  import { gameState } from '../stores/game.svelte';
+  import { releasesState } from '../stores/releases.svelte';
+  import { Calendar, ExternalLink } from 'lucide-svelte';
+  import { getSaturnEffect } from './ParticleBackground.svelte';
+
+  type Props = {
+    mouseX: number;
+    mouseY: number;
+  };
+  let { mouseX = 0, mouseY = 0 }: Props = $props();
+
+  // Saturn effect mouse interaction handlers
+  function handleSaturnMouseDown(e: MouseEvent) {
+    const effect = getSaturnEffect();
+    if (effect) {
+      effect.handleMouseDown(e.clientX);
+    }
+  }
+
+  function handleSaturnMouseMove(e: MouseEvent) {
+    const effect = getSaturnEffect();
+    if (effect) {
+      effect.handleMouseMove(e.clientX);
+    }
+  }
+
+  function handleSaturnMouseUp() {
+    const effect = getSaturnEffect();
+    if (effect) {
+      effect.handleMouseUp();
+    }
+  }
+
+  function handleSaturnMouseLeave() {
+    const effect = getSaturnEffect();
+    if (effect) {
+      effect.handleMouseUp();
+    }
+  }
+
+  function handleSaturnTouchStart(e: TouchEvent) {
+    if (e.touches.length === 1) {
+      const effect = getSaturnEffect();
+      if (effect) {
+        effect.handleTouchStart(e.touches[0].clientX);
+      }
+    }
+  }
+
+  function handleSaturnTouchMove(e: TouchEvent) {
+    if (e.touches.length === 1) {
+      const effect = getSaturnEffect();
+      if (effect) {
+        effect.handleTouchMove(e.touches[0].clientX);
+      }
+    }
+  }
+
+  function handleSaturnTouchEnd() {
+    const effect = getSaturnEffect();
+    if (effect) {
+      effect.handleTouchEnd();
+    }
+  }
+
+  onMount(() => {
+    releasesState.loadReleases();
+  });
+
+  function formatDate(dateString: string) {
+    return new Date(dateString).toLocaleDateString(undefined, {
+      year: 'numeric',
+      month: 'long',
+      day: 'numeric'
+    });
+  }
+  
+  function escapeHtml(unsafe: string) {
+      return unsafe
+          .replace(/&/g, "&amp;")
+          .replace(/</g, "&lt;")
+          .replace(/>/g, "&gt;")
+          .replace(/"/g, "&quot;")
+          .replace(/'/g, "&#039;");
+  }
+
+  // Enhanced markdown parser with Emoji and GitHub specific features
+  function formatBody(body: string) {
+      if (!body) return '';
+      
+      // Escape HTML first to prevent XSS
+      let processed = escapeHtml(body);
+      
+      // Emoji map (common GitHub emojis)
+      const emojiMap: Record<string, string> = {
+          ':tada:': '🎉', ':sparkles:': '✨', ':bug:': '🐛', ':memo:': '📝',
+          ':rocket:': '🚀', ':white_check_mark:': '✅', ':construction:': '🚧',
+          ':recycle:': '♻️', ':wrench:': '🔧', ':package:': '📦',
+          ':arrow_up:': '⬆️', ':arrow_down:': '⬇️', ':warning:': '⚠️',
+          ':fire:': '🔥', ':heart:': '❤️', ':star:': '⭐', ':zap:': '⚡',
+          ':art:': '🎨', ':lipstick:': '💄', ':globe_with_meridians:': '🌐'
+      };
+
+      // Replace emojis
+      processed = processed.replace(/:[a-z0-9_]+:/g, (match) => emojiMap[match] || match);
+
+      // GitHub commit hash linking (simple version for 7-40 hex chars inside backticks)
+      processed = processed.replace(/`([0-9a-f]{7,40})`/g, (match, hash) => {
+          return `<a href="https://github.com/HydroRoll-Team/DropOut/commit/${hash}" target="_blank" class="text-emerald-500 hover:underline font-mono bg-emerald-500/10 px-1 rounded text-[10px] py-0.5 transition-colors border border-emerald-500/20 hover:border-emerald-500/50">${hash.substring(0, 7)}</a>`;
+      });
+      
+      // Auto-link users (@user)
+      processed = processed.replace(/@([a-zA-Z0-9-]+)/g, '<a href="https://github.com/$1" target="_blank" class="text-zinc-300 hover:text-white hover:underline font-medium">@$1</a>');
+
+      return processed.split('\n').map(line => {
+          line = line.trim();
+          
+          // Formatting helper
+          const formatLine = (text: string) => text
+              .replace(/\*\*(.*?)\*\*/g, '<strong class="text-zinc-200">$1</strong>')
+              .replace(/(?<!\*)\*([^*]+)\*(?!\*)/g, '<em class="text-zinc-400 italic">$1</em>')
+              .replace(/`([^`]+)`/g, '<code class="bg-zinc-800 px-1 py-0.5 rounded text-xs text-zinc-300 font-mono border border-white/5 break-all whitespace-normal">$1</code>')
+              .replace(/\[(.*?)\]\((.*?)\)/g, '<a href="$2" target="_blank" class="text-indigo-400 hover:text-indigo-300 hover:underline decoration-indigo-400/30 break-all">$1</a>');
+
+          // Lists
+          if (line.startsWith('- ') || line.startsWith('* ')) {
+              return `<li class="ml-4 list-disc marker:text-zinc-600 mb-1 pl-1 text-zinc-400">${formatLine(line.substring(2))}</li>`;
+          }
+          
+          // Headers
+          if (line.startsWith('##')) {
+               return `<h3 class="text-sm font-bold mt-6 mb-3 text-zinc-100 flex items-center gap-2 border-b border-white/5 pb-2 uppercase tracking-wide">${line.replace(/^#+\s+/, '')}</h3>`;
+          }
+          if (line.startsWith('#')) {
+               return `<h3 class="text-base font-bold mt-6 mb-3 text-white">${line.replace(/^#+\s+/, '')}</h3>`;
+          }
+          
+          // Blockquotes
+          if (line.startsWith('> ')) {
+              return `<blockquote class="border-l-2 border-zinc-700 pl-4 py-1 my-2 text-zinc-500 italic bg-white/5 rounded-r-sm">${formatLine(line.substring(2))}</blockquote>`;
+          }
+          
+          // Empty lines
+          if (line === '') return '<div class="h-2"></div>';
+          
+          // Paragraphs
+          return `<p class="mb-1.5 leading-relaxed">${formatLine(line)}</p>`;
+      }).join('');
+  }
+</script>
+
+<div class="absolute inset-0 z-0 overflow-hidden pointer-events-none">
+  <!-- Fixed Background -->
+  <div class="absolute inset-0 bg-gradient-to-t from-[#09090b] via-[#09090b]/60 to-transparent"></div>
+</div>
+
+<!-- Scrollable Container -->
+<div class="relative z-10 h-full {releasesState.isLoading ? 'overflow-hidden' : 'overflow-y-auto custom-scrollbar scroll-smooth'}">
+  
+  <!-- Hero Section (Full Height) - Interactive area for Saturn rotation -->
+  <!-- svelte-ignore a11y_no_static_element_interactions -->
+  <div 
+    class="min-h-full flex flex-col justify-end p-12 pb-32 cursor-grab active:cursor-grabbing select-none"
+    onmousedown={handleSaturnMouseDown}
+    onmousemove={handleSaturnMouseMove}
+    onmouseup={handleSaturnMouseUp}
+    onmouseleave={handleSaturnMouseLeave}
+    ontouchstart={handleSaturnTouchStart}
+    ontouchmove={handleSaturnTouchMove}
+    ontouchend={handleSaturnTouchEnd}
+  >
+     <!-- 3D Floating Hero Text -->
+      <div 
+        class="transition-transform duration-200 ease-out origin-bottom-left"
+        style:transform={`perspective(1000px) rotateX(${mouseY * -1}deg) rotateY(${mouseX * 1}deg)`}
+      >
+        <div class="flex items-center gap-3 mb-6">
+           <div class="h-px w-12 bg-white/50"></div>
+           <span class="text-xs font-mono font-bold tracking-[0.2em] text-white/50 uppercase">Launcher Active</span>
+        </div>
+
+        <h1
+          class="text-8xl font-black tracking-tighter text-white mb-6 leading-none"
+        >
+          MINECRAFT
+        </h1>
+        
+        <div class="flex items-center gap-4">
+          <div 
+            class="bg-white/10 backdrop-blur-md border border-white/10 px-3 py-1 rounded-sm text-xs font-bold uppercase tracking-widest text-white shadow-sm"
+          >
+            Java Edition
+          </div>
+          <div class="h-4 w-px bg-white/20"></div>
+          <div class="text-xl font-light text-zinc-400">
+            Latest Release <span class="text-white font-medium">{gameState.latestRelease?.id || '...'}</span>
+          </div>
+        </div>
+      </div>
+
+      <!-- Action Area -->
+      <div class="mt-8 flex gap-4">
+        <div class="text-zinc-500 text-sm font-mono">
+          > Ready to launch session.
+        </div>
+      </div>
+
+      <!-- Scroll Hint -->
+      {#if !releasesState.isLoading && releasesState.releases.length > 0}
+      <div class="absolute bottom-10 left-12 animate-bounce text-zinc-600 flex flex-col items-center gap-2 w-fit opacity-50 hover:opacity-100 transition-opacity">
+          <span class="text-[10px] font-mono uppercase tracking-widest">Scroll for Updates</span>
+          <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M7 13l5 5 5-5M7 6l5 5 5-5"/></svg>
+      </div>
+      {/if}
+  </div>
+
+  <!-- Changelog / Updates Section -->
+  <div class="bg-[#09090b] relative z-20 px-12 pb-24 pt-12 border-t border-white/5 min-h-[50vh]">
+      <div class="max-w-4xl">
+          <h2 class="text-2xl font-bold text-white mb-10 flex items-center gap-3">
+              <span class="w-1.5 h-8 bg-emerald-500 rounded-sm"></span>
+              LATEST UPDATES
+          </h2>
+
+          {#if releasesState.isLoading}
+            <div class="flex flex-col gap-8">
+                {#each Array(3) as _}
+                    <div class="h-48 bg-white/5 rounded-sm animate-pulse border border-white/5"></div>
+                {/each}
+            </div>
+          {:else if releasesState.error}
+             <div class="p-6 border border-red-500/20 bg-red-500/10 text-red-400 rounded-sm">
+                 Failed to load updates: {releasesState.error}
+             </div>
+          {:else if releasesState.releases.length === 0}
+             <div class="text-zinc-500 italic">No releases found.</div>
+          {:else}
+             <div class="space-y-12">
+                 {#each releasesState.releases as release}
+                    <div class="group relative pl-8 border-l border-white/10 pb-4 last:pb-0 last:border-l-0">
+                        <!-- Timeline Dot -->
+                        <div class="absolute -left-[5px] top-1.5 w-2.5 h-2.5 rounded-full bg-zinc-800 border border-zinc-600 group-hover:bg-emerald-500 group-hover:border-emerald-400 transition-colors"></div>
+                        
+                        <div class="flex items-baseline gap-4 mb-3">
+                             <h3 class="text-xl font-bold text-white group-hover:text-emerald-400 transition-colors">
+                                {release.name || release.tag_name}
+                             </h3>
+                             <div class="text-xs font-mono text-zinc-500 flex items-center gap-2">
+                                <Calendar size={12} />
+                                {formatDate(release.published_at)}
+                             </div>
+                        </div>
+
+                        <div class="bg-zinc-900/50 border border-white/5 hover:border-white/10 rounded-sm p-6 text-zinc-400 text-sm leading-relaxed transition-colors overflow-hidden">
+                            <div class="prose prose-invert prose-sm max-w-none prose-p:text-zinc-400 prose-headings:text-zinc-200 prose-ul:my-2 prose-li:my-0 break-words whitespace-normal">
+                                {@html formatBody(release.body)}
+                            </div>
+                        </div>
+                        
+                        <a href={release.html_url} target="_blank" class="inline-flex items-center gap-2 mt-3 text-[10px] font-bold uppercase tracking-wider text-zinc-600 hover:text-white transition-colors">
+                            View full changelog on GitHub <ExternalLink size={10} />
+                        </a>
+                    </div>
+                 {/each}
+             </div>
+          {/if}
+      </div>
+  </div>
+</div>
diff --git a/packages/ui/src/components/InstanceCreationModal.svelte b/packages/ui/src/components/InstanceCreationModal.svelte
new file mode 100644
index 0000000..c54cb98
--- /dev/null
+++ b/packages/ui/src/components/InstanceCreationModal.svelte
@@ -0,0 +1,485 @@
+<script lang="ts">
+  import { invoke } from "@tauri-apps/api/core";
+  import { X, ChevronLeft, ChevronRight, Loader2, Search } from "lucide-svelte";
+  import { instancesState } from "../stores/instances.svelte";
+  import { gameState } from "../stores/game.svelte";
+  import type { Version, Instance, FabricLoaderEntry, ForgeVersion } from "../types";
+
+  interface Props {
+    isOpen: boolean;
+    onClose: () => void;
+  }
+
+  let { isOpen, onClose }: Props = $props();
+
+  // Wizard steps: 1 = Name, 2 = Version, 3 = Mod Loader
+  let currentStep = $state(1);
+  let instanceName = $state("");
+  let selectedVersion = $state<Version | null>(null);
+  let modLoaderType = $state<"vanilla" | "fabric" | "forge">("vanilla");
+  let selectedFabricLoader = $state("");
+  let selectedForgeLoader = $state("");
+  let creating = $state(false);
+  let errorMessage = $state("");
+
+  // Mod loader lists
+  let fabricLoaders = $state<FabricLoaderEntry[]>([]);
+  let forgeVersions = $state<ForgeVersion[]>([]);
+  let loadingLoaders = $state(false);
+
+  // Version list filtering
+  let versionSearch = $state("");
+  let versionFilter = $state<"all" | "release" | "snapshot">("release");
+
+  // Filtered versions
+  let filteredVersions = $derived(() => {
+    let versions = gameState.versions || [];
+    
+    // Filter by type
+    if (versionFilter !== "all") {
+      versions = versions.filter((v) => v.type === versionFilter);
+    }
+
+    // Search filter
+    if (versionSearch) {
+      versions = versions.filter((v) =>
+        v.id.toLowerCase().includes(versionSearch.toLowerCase())
+      );
+    }
+
+    return versions;
+  });
+
+  // Fetch mod loaders when entering step 3
+  async function loadModLoaders() {
+    if (!selectedVersion) return;
+    
+    loadingLoaders = true;
+    try {
+      if (modLoaderType === "fabric") {
+        const loaders = await invoke<FabricLoaderEntry[]>("get_fabric_loaders_for_version", {
+          gameVersion: selectedVersion.id,
+        });
+        fabricLoaders = loaders;
+        if (loaders.length > 0) {
+          selectedFabricLoader = loaders[0].loader.version;
+        }
+      } else if (modLoaderType === "forge") {
+        const versions = await invoke<ForgeVersion[]>("get_forge_versions_for_game", {
+          gameVersion: selectedVersion.id,
+        });
+        forgeVersions = versions;
+        if (versions.length > 0) {
+          selectedForgeLoader = versions[0].version;
+        }
+      }
+    } catch (err) {
+      errorMessage = `Failed to load ${modLoaderType} versions: ${err}`;
+    } finally {
+      loadingLoaders = false;
+    }
+  }
+
+  // Watch for mod loader type changes and load loaders
+  $effect(() => {
+    if (currentStep === 3 && modLoaderType !== "vanilla") {
+      loadModLoaders();
+    }
+  });
+
+  // Reset modal state
+  function resetModal() {
+    currentStep = 1;
+    instanceName = "";
+    selectedVersion = null;
+    modLoaderType = "vanilla";
+    selectedFabricLoader = "";
+    selectedForgeLoader = "";
+    creating = false;
+    errorMessage = "";
+    versionSearch = "";
+    versionFilter = "release";
+  }
+
+  function handleClose() {
+    if (!creating) {
+      resetModal();
+      onClose();
+    }
+  }
+
+  function goToStep(step: number) {
+    errorMessage = "";
+    currentStep = step;
+  }
+
+  function validateStep1() {
+    if (!instanceName.trim()) {
+      errorMessage = "Please enter an instance name";
+      return false;
+    }
+    return true;
+  }
+
+  function validateStep2() {
+    if (!selectedVersion) {
+      errorMessage = "Please select a Minecraft version";
+      return false;
+    }
+    return true;
+  }
+
+  async function handleNext() {
+    errorMessage = "";
+    
+    if (currentStep === 1) {
+      if (validateStep1()) {
+        goToStep(2);
+      }
+    } else if (currentStep === 2) {
+      if (validateStep2()) {
+        goToStep(3);
+      }
+    }
+  }
+
+  async function handleCreate() {
+    if (!validateStep1() || !validateStep2()) return;
+
+    creating = true;
+    errorMessage = "";
+
+    try {
+      // Step 1: Create instance
+      const instance: Instance = await invoke("create_instance", {
+        name: instanceName.trim(),
+      });
+
+      // Step 2: Install vanilla version
+      await invoke("install_version", {
+        instanceId: instance.id,
+        versionId: selectedVersion!.id,
+      });
+
+      // Step 3: Install mod loader if selected
+      if (modLoaderType === "fabric" && selectedFabricLoader) {
+        await invoke("install_fabric", {
+          instanceId: instance.id,
+          gameVersion: selectedVersion!.id,
+          loaderVersion: selectedFabricLoader,
+        });
+      } else if (modLoaderType === "forge" && selectedForgeLoader) {
+        await invoke("install_forge", {
+          instanceId: instance.id,
+          gameVersion: selectedVersion!.id,
+          forgeVersion: selectedForgeLoader,
+        });
+      } else {
+        // Update instance with vanilla version_id
+        await invoke("update_instance", {
+          instance: { ...instance, version_id: selectedVersion!.id },
+        });
+      }
+
+      // Reload instances
+      await instancesState.loadInstances();
+
+      // Success! Close modal
+      resetModal();
+      onClose();
+    } catch (error) {
+      errorMessage = String(error);
+      creating = false;
+    }
+  }
+</script>
+
+{#if isOpen}
+  <div
+    class="fixed inset-0 z-[100] bg-black/80 backdrop-blur-sm flex items-center justify-center p-4"
+    role="dialog"
+    aria-modal="true"
+  >
+    <div
+      class="bg-zinc-900 border border-zinc-700 rounded-xl shadow-2xl w-full max-w-3xl max-h-[90vh] overflow-hidden flex flex-col"
+    >
+      <!-- Header -->
+      <div
+        class="flex items-center justify-between p-6 border-b border-zinc-700"
+      >
+        <div>
+          <h2 class="text-xl font-bold text-white">Create New Instance</h2>
+          <p class="text-sm text-zinc-400 mt-1">
+            Step {currentStep} of 3
+          </p>
+        </div>
+        <button
+          onclick={handleClose}
+          disabled={creating}
+          class="p-2 rounded-lg hover:bg-zinc-800 text-zinc-400 hover:text-white transition-colors disabled:opacity-50"
+        >
+          <X size={20} />
+        </button>
+      </div>
+
+      <!-- Progress indicator -->
+      <div class="flex gap-2 px-6 pt-4">
+        <div
+          class="flex-1 h-1 rounded-full transition-colors {currentStep >= 1
+            ? 'bg-indigo-500'
+            : 'bg-zinc-700'}"
+        ></div>
+        <div
+          class="flex-1 h-1 rounded-full transition-colors {currentStep >= 2
+            ? 'bg-indigo-500'
+            : 'bg-zinc-700'}"
+        ></div>
+        <div
+          class="flex-1 h-1 rounded-full transition-colors {currentStep >= 3
+            ? 'bg-indigo-500'
+            : 'bg-zinc-700'}"
+        ></div>
+      </div>
+
+      <!-- Content -->
+      <div class="flex-1 overflow-y-auto p-6">
+        {#if currentStep === 1}
+          <!-- Step 1: Name -->
+          <div class="space-y-4">
+            <div>
+              <label
+                for="instance-name"
+                class="block text-sm font-medium text-white/90 mb-2"
+                >Instance Name</label
+              >
+              <input
+                id="instance-name"
+                type="text"
+                bind:value={instanceName}
+                placeholder="My Minecraft Instance"
+                class="w-full px-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white placeholder-zinc-500 focus:outline-none focus:ring-2 focus:ring-indigo-500"
+                disabled={creating}
+              />
+            </div>
+            <p class="text-xs text-zinc-400">
+              Give your instance a memorable name
+            </p>
+          </div>
+        {:else if currentStep === 2}
+          <!-- Step 2: Version Selection -->
+          <div class="space-y-4">
+            <div class="flex gap-4">
+              <div class="flex-1 relative">
+                <Search
+                  size={16}
+                  class="absolute left-3 top-1/2 -translate-y-1/2 text-zinc-500"
+                />
+                <input
+                  type="text"
+                  bind:value={versionSearch}
+                  placeholder="Search versions..."
+                  class="w-full pl-10 pr-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white placeholder-zinc-500 focus:outline-none focus:ring-2 focus:ring-indigo-500"
+                />
+              </div>
+              <div class="flex gap-2">
+                {#each [
+                  { value: "all", label: "All" },
+                  { value: "release", label: "Release" },
+                  { value: "snapshot", label: "Snapshot" },
+                ] as filter}
+                  <button
+                    onclick={() => {
+                      versionFilter = filter.value as "all" | "release" | "snapshot";
+                    }}
+                    class="px-4 py-2 rounded-lg text-sm font-medium transition-colors {versionFilter ===
+                    filter.value
+                      ? 'bg-indigo-600 text-white'
+                      : 'bg-zinc-800 text-zinc-400 hover:text-white'}"
+                  >
+                    {filter.label}
+                  </button>
+                {/each}
+              </div>
+            </div>
+
+            <div class="max-h-96 overflow-y-auto space-y-2">
+              {#each filteredVersions() as version}
+                <button
+                  onclick={() => (selectedVersion = version)}
+                  class="w-full p-3 rounded-lg border transition-colors text-left {selectedVersion?.id ===
+                  version.id
+                    ? 'bg-indigo-600/20 border-indigo-500 text-white'
+                    : 'bg-zinc-800 border-zinc-700 text-zinc-300 hover:border-zinc-600'}"
+                >
+                  <div class="flex items-center justify-between">
+                    <span class="font-medium">{version.id}</span>
+                    <span
+                      class="text-xs px-2 py-1 rounded-full {version.type ===
+                      'release'
+                        ? 'bg-green-500/20 text-green-400'
+                        : 'bg-yellow-500/20 text-yellow-400'}"
+                    >
+                      {version.type}
+                    </span>
+                  </div>
+                </button>
+              {/each}
+
+              {#if filteredVersions().length === 0}
+                <div class="text-center py-8 text-zinc-500">
+                  No versions found
+                </div>
+              {/if}
+            </div>
+          </div>
+        {:else if currentStep === 3}
+          <!-- Step 3: Mod Loader -->
+          <div class="space-y-4">
+            <div>
+              <div class="text-sm font-medium text-white/90 mb-3">
+                Mod Loader Type
+              </div>
+              <div class="flex gap-3">
+                {#each [
+                  { value: "vanilla", label: "Vanilla" },
+                  { value: "fabric", label: "Fabric" },
+                  { value: "forge", label: "Forge" },
+                ] as loader}
+                  <button
+                    onclick={() => {
+                      modLoaderType = loader.value as "vanilla" | "fabric" | "forge";
+                    }}
+                    class="flex-1 px-4 py-3 rounded-lg text-sm font-medium transition-colors {modLoaderType ===
+                    loader.value
+                      ? 'bg-indigo-600 text-white'
+                      : 'bg-zinc-800 text-zinc-400 hover:text-white'}"
+                  >
+                    {loader.label}
+                  </button>
+                {/each}
+              </div>
+            </div>
+
+            {#if modLoaderType === "fabric"}
+              <div>
+                <label for="fabric-loader" class="block text-sm font-medium text-white/90 mb-2">
+                  Fabric Loader Version
+                </label>
+                {#if loadingLoaders}
+                  <div class="flex items-center gap-2 text-zinc-400">
+                    <Loader2 size={16} class="animate-spin" />
+                    Loading Fabric versions...
+                  </div>
+                {:else if fabricLoaders.length > 0}
+                  <select
+                    id="fabric-loader"
+                    bind:value={selectedFabricLoader}
+                    class="w-full px-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white focus:outline-none focus:ring-2 focus:ring-indigo-500"
+                  >
+                    {#each fabricLoaders as loader}
+                      <option value={loader.loader.version}>
+                        {loader.loader.version} {loader.loader.stable ? "(Stable)" : "(Beta)"}
+                      </option>
+                    {/each}
+                  </select>
+                {:else}
+                  <p class="text-sm text-red-400">No Fabric loaders available for this version</p>
+                {/if}
+              </div>
+            {:else if modLoaderType === "forge"}
+              <div>
+                <label for="forge-version" class="block text-sm font-medium text-white/90 mb-2">
+                  Forge Version
+                </label>
+                {#if loadingLoaders}
+                  <div class="flex items-center gap-2 text-zinc-400">
+                    <Loader2 size={16} class="animate-spin" />
+                    Loading Forge versions...
+                  </div>
+                {:else if forgeVersions.length > 0}
+                  <select
+                    id="forge-version"
+                    bind:value={selectedForgeLoader}
+                    class="w-full px-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white focus:outline-none focus:ring-2 focus:ring-indigo-500"
+                  >
+                    {#each forgeVersions as version}
+                      <option value={version.version}>
+                        {version.version}
+                      </option>
+                    {/each}
+                  </select>
+                {:else}
+                  <p class="text-sm text-red-400">No Forge versions available for this version</p>
+                {/if}
+              </div>
+            {:else if modLoaderType === "vanilla"}
+              <p class="text-sm text-zinc-400">
+                Create a vanilla Minecraft instance without any mod loaders
+              </p>
+            {/if}
+          </div>
+        {/if}
+
+        {#if errorMessage}
+          <div
+            class="mt-4 p-3 bg-red-500/10 border border-red-500/30 rounded-lg text-red-400 text-sm"
+          >
+            {errorMessage}
+          </div>
+        {/if}
+      </div>
+
+      <!-- Footer -->
+      <div
+        class="flex items-center justify-between gap-3 p-6 border-t border-zinc-700"
+      >
+        <button
+          onclick={() => goToStep(currentStep - 1)}
+          disabled={currentStep === 1 || creating}
+          class="px-4 py-2 rounded-lg bg-zinc-800 hover:bg-zinc-700 text-white transition-colors disabled:opacity-50 disabled:cursor-not-allowed flex items-center gap-2"
+        >
+          <ChevronLeft size={16} />
+          Back
+        </button>
+
+        <div class="flex gap-3">
+          <button
+            onclick={handleClose}
+            disabled={creating}
+            class="px-4 py-2 rounded-lg bg-zinc-800 hover:bg-zinc-700 text-white transition-colors disabled:opacity-50"
+          >
+            Cancel
+          </button>
+
+          {#if currentStep < 3}
+            <button
+              onclick={handleNext}
+              disabled={creating}
+              class="px-4 py-2 rounded-lg bg-indigo-600 hover:bg-indigo-500 text-white transition-colors disabled:opacity-50 flex items-center gap-2"
+            >
+              Next
+              <ChevronRight size={16} />
+            </button>
+          {:else}
+            <button
+              onclick={handleCreate}
+              disabled={creating ||
+                !instanceName.trim() ||
+                !selectedVersion ||
+                (modLoaderType === "fabric" && !selectedFabricLoader) ||
+                (modLoaderType === "forge" && !selectedForgeLoader)}
+              class="px-4 py-2 rounded-lg bg-indigo-600 hover:bg-indigo-500 text-white transition-colors disabled:opacity-50 flex items-center gap-2"
+            >
+              {#if creating}
+                <Loader2 size={16} class="animate-spin" />
+                Creating...
+              {:else}
+                Create Instance
+              {/if}
+            </button>
+          {/if}
+        </div>
+      </div>
+    </div>
+  </div>
+{/if}
diff --git a/packages/ui/src/components/InstanceEditorModal.svelte b/packages/ui/src/components/InstanceEditorModal.svelte
new file mode 100644
index 0000000..0856d93
--- /dev/null
+++ b/packages/ui/src/components/InstanceEditorModal.svelte
@@ -0,0 +1,439 @@
+<script lang="ts">
+  import { invoke } from "@tauri-apps/api/core";
+  import { X, Save, Loader2, Trash2, FolderOpen } from "lucide-svelte";
+  import { instancesState } from "../stores/instances.svelte";
+  import { gameState } from "../stores/game.svelte";
+  import { settingsState } from "../stores/settings.svelte";
+  import type { Instance, FileInfo, FabricLoaderEntry, ForgeVersion } from "../types";
+  import ModLoaderSelector from "./ModLoaderSelector.svelte";
+
+  interface Props {
+    isOpen: boolean;
+    instance: Instance | null;
+    onClose: () => void;
+  }
+
+  let { isOpen, instance, onClose }: Props = $props();
+
+  // Tabs: "info" | "version" | "files" | "settings"
+  let activeTab = $state<"info" | "version" | "files" | "settings">("info");
+  let saving = $state(false);
+  let errorMessage = $state("");
+
+  // Info tab state
+  let editName = $state("");
+  let editNotes = $state("");
+
+  // Version tab state
+  let fabricLoaders = $state<FabricLoaderEntry[]>([]);
+  let forgeVersions = $state<ForgeVersion[]>([]);
+  let loadingVersions = $state(false);
+
+  // Files tab state
+  let selectedFileFolder = $state<"mods" | "resourcepacks" | "shaderpacks" | "saves" | "screenshots">("mods");
+  let fileList = $state<FileInfo[]>([]);
+  let loadingFiles = $state(false);
+  let deletingPath = $state<string | null>(null);
+
+  // Settings tab state
+  let editMemoryMin = $state(0);
+  let editMemoryMax = $state(0);
+  let editJavaArgs = $state("");
+
+  // Initialize form when instance changes
+  $effect(() => {
+    if (isOpen && instance) {
+      editName = instance.name;
+      editNotes = instance.notes || "";
+      editMemoryMin = instance.memory_override?.min || settingsState.settings.min_memory || 512;
+      editMemoryMax = instance.memory_override?.max || settingsState.settings.max_memory || 2048;
+      editJavaArgs = instance.jvm_args_override || "";
+      errorMessage = "";
+    }
+  });
+
+  // Load files when switching to files tab
+  $effect(() => {
+    if (isOpen && instance && activeTab === "files") {
+      loadFileList();
+    }
+  });
+
+  // Load file list for selected folder
+  async function loadFileList() {
+    if (!instance) return;
+    
+    loadingFiles = true;
+    try {
+      const files = await invoke<FileInfo[]>("list_instance_directory", {
+        instanceId: instance.id,
+        folder: selectedFileFolder,
+      });
+      fileList = files;
+    } catch (err) {
+      errorMessage = `Failed to load files: ${err}`;
+      fileList = [];
+    } finally {
+      loadingFiles = false;
+    }
+  }
+
+  // Change selected folder and reload
+  async function changeFolder(folder: "mods" | "resourcepacks" | "shaderpacks" | "saves" | "screenshots") {
+    selectedFileFolder = folder;
+    await loadFileList();
+  }
+
+  // Delete a file or directory
+  async function deleteFile(filePath: string) {
+    if (!confirm(`Are you sure you want to delete "${filePath.split("/").pop()}"?`)) {
+      return;
+    }
+
+    deletingPath = filePath;
+    try {
+      await invoke("delete_instance_file", { path: filePath });
+      // Reload file list
+      await loadFileList();
+    } catch (err) {
+      errorMessage = `Failed to delete file: ${err}`;
+    } finally {
+      deletingPath = null;
+    }
+  }
+
+  // Open file in system explorer
+  async function openInExplorer(filePath: string) {
+    try {
+      await invoke("open_file_explorer", { path: filePath });
+    } catch (err) {
+      errorMessage = `Failed to open file explorer: ${err}`;
+    }
+  }
+
+  // Save instance changes
+  async function saveChanges() {
+    if (!instance) return;
+    if (!editName.trim()) {
+      errorMessage = "Instance name cannot be empty";
+      return;
+    }
+
+    saving = true;
+    errorMessage = "";
+
+    try {
+      const updatedInstance: Instance = {
+        ...instance,
+        name: editName.trim(),
+        notes: editNotes.trim() || undefined,
+        memory_override: {
+          min: editMemoryMin,
+          max: editMemoryMax,
+        },
+        jvm_args_override: editJavaArgs.trim() || undefined,
+      };
+
+      await instancesState.updateInstance(updatedInstance);
+      onClose();
+    } catch (err) {
+      errorMessage = `Failed to save instance: ${err}`;
+    } finally {
+      saving = false;
+    }
+  }
+
+  function formatFileSize(bytes: number): string {
+    if (bytes === 0) return "0 B";
+    const k = 1024;
+    const sizes = ["B", "KB", "MB", "GB"];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return Math.round((bytes / Math.pow(k, i)) * 100) / 100 + " " + sizes[i];
+  }
+
+  function formatDate(timestamp: number): string {
+    return new Date(timestamp * 1000).toLocaleDateString();
+  }
+</script>
+
+{#if isOpen && instance}
+  <div
+    class="fixed inset-0 z-[100] bg-black/80 backdrop-blur-sm flex items-center justify-center p-4"
+    role="dialog"
+    aria-modal="true"
+  >
+    <div
+      class="bg-zinc-900 border border-zinc-700 rounded-xl shadow-2xl w-full max-w-4xl max-h-[90vh] overflow-hidden flex flex-col"
+    >
+      <!-- Header -->
+      <div class="flex items-center justify-between p-6 border-b border-zinc-700">
+        <div>
+          <h2 class="text-xl font-bold text-white">Edit Instance</h2>
+          <p class="text-sm text-zinc-400 mt-1">{instance.name}</p>
+        </div>
+        <button
+          onclick={onClose}
+          disabled={saving}
+          class="p-2 rounded-lg hover:bg-zinc-800 text-zinc-400 hover:text-white transition-colors disabled:opacity-50"
+        >
+          <X size={20} />
+        </button>
+      </div>
+
+      <!-- Tab Navigation -->
+      <div class="flex gap-1 px-6 pt-4 border-b border-zinc-700">
+        {#each [
+          { id: "info", label: "Info" },
+          { id: "version", label: "Version" },
+          { id: "files", label: "Files" },
+          { id: "settings", label: "Settings" },
+        ] as tab}
+          <button
+            onclick={() => (activeTab = tab.id as any)}
+            class="px-4 py-2 text-sm font-medium transition-colors rounded-t-lg {activeTab === tab.id
+              ? 'bg-indigo-600 text-white'
+              : 'bg-zinc-800 text-zinc-400 hover:text-white'}"
+          >
+            {tab.label}
+          </button>
+        {/each}
+      </div>
+
+      <!-- Content Area -->
+      <div class="flex-1 overflow-y-auto p-6">
+        {#if activeTab === "info"}
+          <!-- Info Tab -->
+          <div class="space-y-4">
+            <div>
+              <label for="instance-name" class="block text-sm font-medium text-white/90 mb-2">
+                Instance Name
+              </label>
+              <input
+                id="instance-name"
+                type="text"
+                bind:value={editName}
+                class="w-full px-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white placeholder-zinc-500 focus:outline-none focus:ring-2 focus:ring-indigo-500"
+                disabled={saving}
+              />
+            </div>
+
+            <div>
+              <label for="instance-notes" class="block text-sm font-medium text-white/90 mb-2">
+                Notes
+              </label>
+              <textarea
+                id="instance-notes"
+                bind:value={editNotes}
+                rows="4"
+                placeholder="Add notes about this instance..."
+                class="w-full px-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white placeholder-zinc-500 focus:outline-none focus:ring-2 focus:ring-indigo-500 resize-none"
+                disabled={saving}
+              ></textarea>
+            </div>
+
+            <div class="grid grid-cols-2 gap-4 text-sm">
+              <div class="p-3 bg-zinc-800 rounded-lg">
+                <p class="text-zinc-400">Created</p>
+                <p class="text-white font-medium">{formatDate(instance.created_at)}</p>
+              </div>
+              <div class="p-3 bg-zinc-800 rounded-lg">
+                <p class="text-zinc-400">Last Played</p>
+                <p class="text-white font-medium">
+                  {instance.last_played ? formatDate(instance.last_played) : "Never"}
+                </p>
+              </div>
+              <div class="p-3 bg-zinc-800 rounded-lg">
+                <p class="text-zinc-400">Game Directory</p>
+                <p class="text-white font-medium text-xs truncate" title={instance.game_dir}>
+                  {instance.game_dir.split("/").pop()}
+                </p>
+              </div>
+              <div class="p-3 bg-zinc-800 rounded-lg">
+                <p class="text-zinc-400">Current Version</p>
+                <p class="text-white font-medium">{instance.version_id || "None"}</p>
+              </div>
+            </div>
+          </div>
+        {:else if activeTab === "version"}
+          <!-- Version Tab -->
+          <div class="space-y-4">
+            {#if instance.version_id}
+              <div class="p-4 bg-indigo-500/10 border border-indigo-500/30 rounded-lg">
+                <p class="text-sm text-indigo-400">
+                  Currently playing: <span class="font-medium">{instance.version_id}</span>
+                  {#if instance.mod_loader}
+                    with <span class="capitalize">{instance.mod_loader}</span>
+                    {instance.mod_loader_version && `${instance.mod_loader_version}`}
+                  {/if}
+                </p>
+              </div>
+            {/if}
+
+            <div>
+              <h3 class="text-sm font-medium text-white/90 mb-4">Change Version or Mod Loader</h3>
+              <ModLoaderSelector
+                selectedGameVersion={instance.version_id || ""}
+                onInstall={(versionId) => {
+                  // Version installed, update instance version_id
+                  instance.version_id = versionId;
+                  saveChanges();
+                }}
+              />
+            </div>
+          </div>
+        {:else if activeTab === "files"}
+          <!-- Files Tab -->
+          <div class="space-y-4">
+            <div class="flex gap-2 flex-wrap">
+              {#each ["mods", "resourcepacks", "shaderpacks", "saves", "screenshots"] as folder}
+                <button
+                  onclick={() => changeFolder(folder as any)}
+                  class="px-3 py-1.5 rounded-lg text-sm font-medium transition-colors {selectedFileFolder ===
+                  folder
+                    ? "bg-indigo-600 text-white"
+                    : "bg-zinc-800 text-zinc-400 hover:text-white"}"
+                >
+                  {folder}
+                </button>
+              {/each}
+            </div>
+
+            {#if loadingFiles}
+              <div class="flex items-center gap-2 text-zinc-400 py-8 justify-center">
+                <Loader2 size={16} class="animate-spin" />
+                Loading files...
+              </div>
+            {:else if fileList.length === 0}
+              <div class="text-center py-8 text-zinc-500">
+                No files in this folder
+              </div>
+            {:else}
+              <div class="space-y-2">
+                {#each fileList as file}
+                  <div
+                    class="flex items-center justify-between p-3 bg-zinc-800 rounded-lg hover:bg-zinc-700 transition-colors"
+                  >
+                    <div class="flex-1 min-w-0">
+                      <p class="font-medium text-white truncate">{file.name}</p>
+                      <p class="text-xs text-zinc-400">
+                        {file.is_directory ? "Folder" : formatFileSize(file.size)}
+                        • {formatDate(file.modified)}
+                      </p>
+                    </div>
+                    <div class="flex gap-2 ml-4">
+                      <button
+                        onclick={() => openInExplorer(file.path)}
+                        title="Open in explorer"
+                        class="p-2 rounded-lg hover:bg-zinc-600 text-zinc-400 hover:text-white transition-colors"
+                      >
+                        <FolderOpen size={16} />
+                      </button>
+                      <button
+                        onclick={() => deleteFile(file.path)}
+                        disabled={deletingPath === file.path}
+                        title="Delete"
+                        class="p-2 rounded-lg hover:bg-red-600/20 text-red-400 hover:text-red-300 transition-colors disabled:opacity-50"
+                      >
+                        {#if deletingPath === file.path}
+                          <Loader2 size={16} class="animate-spin" />
+                        {:else}
+                          <Trash2 size={16} />
+                        {/if}
+                      </button>
+                    </div>
+                  </div>
+                {/each}
+              </div>
+            {/if}
+          </div>
+        {:else if activeTab === "settings"}
+          <!-- Settings Tab -->
+          <div class="space-y-4">
+            <div>
+              <label for="min-memory" class="block text-sm font-medium text-white/90 mb-2">
+                Minimum Memory (MB)
+              </label>
+              <input
+                id="min-memory"
+                type="number"
+                bind:value={editMemoryMin}
+                min="256"
+                max={editMemoryMax}
+                class="w-full px-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white focus:outline-none focus:ring-2 focus:ring-indigo-500"
+                disabled={saving}
+              />
+              <p class="text-xs text-zinc-400 mt-1">
+                Default: {settingsState.settings.min_memory}MB
+              </p>
+            </div>
+
+            <div>
+              <label for="max-memory" class="block text-sm font-medium text-white/90 mb-2">
+                Maximum Memory (MB)
+              </label>
+              <input
+                id="max-memory"
+                type="number"
+                bind:value={editMemoryMax}
+                min={editMemoryMin}
+                max="16384"
+                class="w-full px-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white focus:outline-none focus:ring-2 focus:ring-indigo-500"
+                disabled={saving}
+              />
+              <p class="text-xs text-zinc-400 mt-1">
+                Default: {settingsState.settings.max_memory}MB
+              </p>
+            </div>
+
+            <div>
+              <label for="java-args" class="block text-sm font-medium text-white/90 mb-2">
+                JVM Arguments (Advanced)
+              </label>
+              <textarea
+                id="java-args"
+                bind:value={editJavaArgs}
+                rows="4"
+                placeholder="-XX:+UnlockExperimentalVMOptions -XX:G1NewCollectionPercentage=20..."
+                class="w-full px-4 py-2 bg-zinc-800 border border-zinc-700 rounded-lg text-white placeholder-zinc-500 focus:outline-none focus:ring-2 focus:ring-indigo-500 font-mono text-sm resize-none"
+                disabled={saving}
+              ></textarea>
+              <p class="text-xs text-zinc-400 mt-1">
+                Leave empty to use global Java arguments
+              </p>
+            </div>
+          </div>
+        {/if}
+
+        {#if errorMessage}
+          <div class="mt-4 p-3 bg-red-500/10 border border-red-500/30 rounded-lg text-red-400 text-sm">
+            {errorMessage}
+          </div>
+        {/if}
+      </div>
+
+      <!-- Footer -->
+      <div class="flex items-center justify-end gap-3 p-6 border-t border-zinc-700">
+        <button
+          onclick={onClose}
+          disabled={saving}
+          class="px-4 py-2 rounded-lg bg-zinc-800 hover:bg-zinc-700 text-white transition-colors disabled:opacity-50"
+        >
+          Cancel
+        </button>
+        <button
+          onclick={saveChanges}
+          disabled={saving || !editName.trim()}
+          class="px-4 py-2 rounded-lg bg-indigo-600 hover:bg-indigo-500 text-white transition-colors disabled:opacity-50 flex items-center gap-2"
+        >
+          {#if saving}
+            <Loader2 size={16} class="animate-spin" />
+            Saving...
+          {:else}
+            <Save size={16} />
+            Save Changes
+          {/if}
+        </button>
+      </div>
+    </div>
+  </div>
+{/if}
diff --git a/packages/ui/src/components/InstancesView.svelte b/packages/ui/src/components/InstancesView.svelte
new file mode 100644
index 0000000..5334f9e
--- /dev/null
+++ b/packages/ui/src/components/InstancesView.svelte
@@ -0,0 +1,259 @@
+<script lang="ts">
+  import { onMount } from "svelte";
+  import { instancesState } from "../stores/instances.svelte";
+  import { Plus, Trash2, Edit2, Copy, Check, X } from "lucide-svelte";
+  import type { Instance } from "../types";
+  import InstanceCreationModal from "./InstanceCreationModal.svelte";
+  import InstanceEditorModal from "./InstanceEditorModal.svelte";
+
+  let showCreateModal = $state(false);
+  let showEditModal = $state(false);
+  let showDeleteConfirm = $state(false);
+  let showDuplicateModal = $state(false);
+  let selectedInstance: Instance | null = $state(null);
+  let editingInstance: Instance | null = $state(null);
+  let newInstanceName = $state("");
+  let duplicateName = $state("");
+
+  onMount(() => {
+    instancesState.loadInstances();
+  });
+
+  function handleCreate() {
+    showCreateModal = true;
+  }
+
+  function handleEdit(instance: Instance) {
+    editingInstance = instance;
+  }
+
+  function handleDelete(instance: Instance) {
+    selectedInstance = instance;
+    showDeleteConfirm = true;
+  }
+
+  function handleDuplicate(instance: Instance) {
+    selectedInstance = instance;
+    duplicateName = `${instance.name} (Copy)`;
+    showDuplicateModal = true;
+  }
+
+  async function confirmDelete() {
+    if (!selectedInstance) return;
+    await instancesState.deleteInstance(selectedInstance.id);
+    showDeleteConfirm = false;
+    selectedInstance = null;
+  }
+
+  async function confirmDuplicate() {
+    if (!selectedInstance || !duplicateName.trim()) return;
+    await instancesState.duplicateInstance(selectedInstance.id, duplicateName.trim());
+    showDuplicateModal = false;
+    selectedInstance = null;
+    duplicateName = "";
+  }
+
+  function formatDate(timestamp: number): string {
+    return new Date(timestamp * 1000).toLocaleDateString();
+  }
+
+  function formatLastPlayed(timestamp: number): string {
+    const date = new Date(timestamp * 1000);
+    const now = new Date();
+    const diff = now.getTime() - date.getTime();
+    const days = Math.floor(diff / (1000 * 60 * 60 * 24));
+    
+    if (days === 0) return "Today";
+    if (days === 1) return "Yesterday";
+    if (days < 7) return `${days} days ago`;
+    return date.toLocaleDateString();
+  }
+</script>
+
+<div class="h-full flex flex-col gap-4 p-6 overflow-y-auto">
+  <div class="flex items-center justify-between">
+    <h1 class="text-2xl font-bold text-gray-900 dark:text-white">Instances</h1>
+    <button
+      onclick={handleCreate}
+      class="flex items-center gap-2 px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg transition-colors"
+    >
+      <Plus size={18} />
+      Create Instance
+    </button>
+  </div>
+
+  {#if instancesState.instances.length === 0}
+    <div class="flex-1 flex items-center justify-center">
+      <div class="text-center text-gray-500 dark:text-gray-400">
+        <p class="text-lg mb-2">No instances yet</p>
+        <p class="text-sm">Create your first instance to get started</p>
+      </div>
+    </div>
+  {:else}
+    <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
+      {#each instancesState.instances as instance (instance.id)}
+        <div
+          role="button"
+          tabindex="0"
+          class="relative p-4 bg-gray-100 dark:bg-gray-800 rounded-lg border-2 transition-all cursor-pointer hover:border-blue-500 {instancesState.activeInstanceId === instance.id
+            ? 'border-blue-500'
+            : 'border-transparent'}"
+          onclick={() => instancesState.setActiveInstance(instance.id)}
+          onkeydown={(e) => e.key === "Enter" && instancesState.setActiveInstance(instance.id)}
+        >
+          {#if instancesState.activeInstanceId === instance.id}
+            <div class="absolute top-2 right-2">
+              <div class="w-3 h-3 bg-blue-500 rounded-full"></div>
+            </div>
+          {/if}
+
+          <div class="flex items-start justify-between mb-2">
+            <h3 class="text-lg font-semibold text-gray-900 dark:text-white">
+              {instance.name}
+            </h3>
+            <div class="flex gap-1">
+              <button
+                type="button"
+                onclick={(e) => {
+                  e.stopPropagation();
+                  handleEdit(instance);
+                }}
+                class="p-1 hover:bg-gray-200 dark:hover:bg-gray-700 rounded transition-colors"
+                title="Edit"
+              >
+                <Edit2 size={16} class="text-gray-600 dark:text-gray-400" />
+              </button>
+              <button
+                type="button"
+                onclick={(e) => {
+                  e.stopPropagation();
+                  handleDuplicate(instance);
+                }}
+                class="p-1 hover:bg-gray-200 dark:hover:bg-gray-700 rounded transition-colors"
+                title="Duplicate"
+              >
+                <Copy size={16} class="text-gray-600 dark:text-gray-400" />
+              </button>
+              <button
+                type="button"
+                onclick={(e) => {
+                  e.stopPropagation();
+                  handleDelete(instance);
+                }}
+                class="p-1 hover:bg-gray-200 dark:hover:bg-gray-700 rounded transition-colors"
+                title="Delete"
+              >
+                <Trash2 size={16} class="text-red-600 dark:text-red-400" />
+              </button>
+            </div>
+          </div>
+
+          <div class="space-y-1 text-sm text-gray-600 dark:text-gray-400">
+            {#if instance.version_id}
+              <p>Version: <span class="font-medium">{instance.version_id}</span></p>
+            {:else}
+              <p class="text-gray-400">No version selected</p>
+            {/if}
+
+            {#if instance.mod_loader && instance.mod_loader !== "vanilla"}
+              <p>
+                Mod Loader: <span class="font-medium capitalize">{instance.mod_loader}</span>
+                {#if instance.mod_loader_version}
+                  <span class="text-gray-500">({instance.mod_loader_version})</span>
+                {/if}
+              </p>
+            {/if}
+
+            <p>Created: {formatDate(instance.created_at)}</p>
+
+            {#if instance.last_played}
+              <p>Last played: {formatLastPlayed(instance.last_played)}</p>
+            {/if}
+          </div>
+
+          {#if instance.notes}
+            <p class="mt-2 text-sm text-gray-500 dark:text-gray-500 italic">
+              {instance.notes}
+            </p>
+          {/if}
+        </div>
+      {/each}
+    </div>
+  {/if}
+</div>
+
+<!-- Create Modal -->
+<InstanceCreationModal isOpen={showCreateModal} onClose={() => (showCreateModal = false)} />
+
+<!-- Instance Editor Modal -->
+<InstanceEditorModal
+  isOpen={editingInstance !== null}
+  instance={editingInstance}
+  onClose={() => {
+    editingInstance = null;
+  }}
+/>
+
+<!-- Delete Confirmation -->
+{#if showDeleteConfirm && selectedInstance}
+  <div class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
+    <div class="bg-white dark:bg-gray-800 rounded-lg p-6 w-96">
+      <h2 class="text-xl font-bold mb-4 text-red-600 dark:text-red-400">Delete Instance</h2>
+      <p class="mb-4 text-gray-700 dark:text-gray-300">
+        Are you sure you want to delete "{selectedInstance.name}"? This action cannot be undone and will delete all game data for this instance.
+      </p>
+      <div class="flex gap-2 justify-end">
+        <button
+          onclick={() => {
+            showDeleteConfirm = false;
+            selectedInstance = null;
+          }}
+          class="px-4 py-2 bg-gray-200 dark:bg-gray-700 text-gray-900 dark:text-white rounded-lg hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors"
+        >
+          Cancel
+        </button>
+        <button
+          onclick={confirmDelete}
+          class="px-4 py-2 bg-red-600 text-white rounded-lg hover:bg-red-700 transition-colors"
+        >
+          Delete
+        </button>
+      </div>
+    </div>
+  </div>
+{/if}
+
+<!-- Duplicate Modal -->
+{#if showDuplicateModal && selectedInstance}
+  <div class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
+    <div class="bg-white dark:bg-gray-800 rounded-lg p-6 w-96">
+      <h2 class="text-xl font-bold mb-4 text-gray-900 dark:text-white">Duplicate Instance</h2>
+      <input
+        type="text"
+        bind:value={duplicateName}
+        placeholder="New instance name"
+        class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white mb-4"
+        onkeydown={(e) => e.key === "Enter" && confirmDuplicate()}
+      />
+      <div class="flex gap-2 justify-end">
+        <button
+          onclick={() => {
+            showDuplicateModal = false;
+            selectedInstance = null;
+            duplicateName = "";
+          }}
+          class="px-4 py-2 bg-gray-200 dark:bg-gray-700 text-gray-900 dark:text-white rounded-lg hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors"
+        >
+          Cancel
+        </button>
+        <button
+          onclick={confirmDuplicate}
+          disabled={!duplicateName.trim()}
+          class="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+        >
+          Duplicate
+        </button>
+      </div>
+    </div>
+  </div>
+{/if}
diff --git a/packages/ui/src/components/LoginModal.svelte b/packages/ui/src/components/LoginModal.svelte
new file mode 100644
index 0000000..1886cd9
--- /dev/null
+++ b/packages/ui/src/components/LoginModal.svelte
@@ -0,0 +1,126 @@
+<script lang="ts">
+  import { open } from "@tauri-apps/plugin-shell";
+  import { authState } from "../stores/auth.svelte";
+
+  function openLink(url: string) {
+    open(url);
+  }
+</script>
+
+{#if authState.isLoginModalOpen}
+  <div
+    class="fixed inset-0 z-[60] flex items-center justify-center bg-white/80 dark:bg-black/80 backdrop-blur-sm p-4"
+  >
+    <div
+      class="bg-white dark:bg-zinc-900 border border-zinc-200 dark:border-zinc-700 rounded-xl shadow-2xl p-6 w-full max-w-md animate-in fade-in zoom-in-0 duration-200"
+    >
+      <div class="flex justify-between items-center mb-6">
+        <h2 class="text-2xl font-bold text-gray-900 dark:text-white">Login</h2>
+        <button
+          onclick={() => authState.closeLoginModal()}
+          class="text-zinc-500 hover:text-black dark:hover:text-white transition group"
+        >
+          ✕
+        </button>
+      </div>
+
+      {#if authState.loginMode === "select"}
+        <div class="space-y-4">
+          <button
+            onclick={() => authState.startMicrosoftLogin()}
+            class="w-full flex items-center justify-center gap-3 bg-gray-100 hover:bg-gray-200 dark:bg-[#2F2F2F] dark:hover:bg-[#3F3F3F] text-gray-900 dark:text-white p-4 rounded-lg font-bold border border-transparent hover:border-zinc-400 dark:hover:border-zinc-500 transition-all group"
+          >
+            <!-- Microsoft Logo SVG -->
+            <svg
+              class="w-5 h-5"
+              viewBox="0 0 23 23"
+              fill="none"
+              xmlns="http://www.w3.org/2000/svg"
+              ><path fill="#f35325" d="M1 1h10v10H1z" /><path
+                fill="#81bc06"
+                d="M12 1h10v10H12z"
+              /><path fill="#05a6f0" d="M1 12h10v10H1z" /><path
+                fill="#ffba08"
+                d="M12 12h10v10H12z"
+              /></svg
+            >
+            Microsoft Account
+          </button>
+
+          <div class="relative py-2">
+            <div class="absolute inset-0 flex items-center">
+              <div class="w-full border-t border-zinc-200 dark:border-zinc-700"></div>
+            </div>
+            <div class="relative flex justify-center text-xs uppercase">
+              <span class="bg-white dark:bg-zinc-900 px-2 text-zinc-400 dark:text-zinc-500">OR</span>
+            </div>
+          </div>
+
+          <div class="space-y-2">
+            <input
+              type="text"
+              bind:value={authState.offlineUsername}
+              placeholder="Offline Username"
+              class="w-full bg-gray-50 border-zinc-200 dark:bg-zinc-950 dark:border-zinc-700 rounded p-3 text-gray-900 dark:text-white focus:border-indigo-500 outline-none"
+              onkeydown={(e) => e.key === "Enter" && authState.performOfflineLogin()}
+            />
+            <button
+              onclick={() => authState.performOfflineLogin()}
+              class="w-full bg-gray-200 hover:bg-gray-300 dark:bg-zinc-800 dark:hover:bg-zinc-700 text-gray-700 dark:text-zinc-300 p-3 rounded font-medium transition-colors"
+            >
+              Offline Login
+            </button>
+          </div>
+        </div>
+      {:else if authState.loginMode === "microsoft"}
+        <div class="text-center">
+          {#if authState.msLoginLoading && !authState.deviceCodeData}
+            <div class="py-8 text-zinc-400 animate-pulse">
+              Starting login flow...
+            </div>
+          {:else if authState.deviceCodeData}
+            <div class="space-y-4">
+              <p class="text-sm text-gray-500 dark:text-zinc-400">1. Go to this URL:</p>
+              <button
+                onclick={() =>
+                    authState.deviceCodeData && openLink(authState.deviceCodeData.verification_uri)}
+                class="text-indigo-600 dark:text-indigo-400 hover:text-indigo-500 dark:hover:text-indigo-300 underline break-all font-mono text-sm"
+              >
+                {authState.deviceCodeData.verification_uri}
+              </button>
+
+              <p class="text-sm text-gray-500 dark:text-zinc-400 mt-2">2. Enter this code:</p>
+              <div
+                class="bg-gray-50 dark:bg-zinc-950 p-4 rounded border border-zinc-200 dark:border-zinc-700 font-mono text-2xl tracking-widest text-center select-all cursor-pointer hover:border-indigo-500 transition-colors dark:text-white text-gray-900"
+                role="button"
+                tabindex="0"
+                onkeydown={(e) => e.key === 'Enter' && navigator.clipboard.writeText(authState.deviceCodeData?.user_code || "")}
+                onclick={() =>
+                  navigator.clipboard.writeText(
+                    authState.deviceCodeData?.user_code || ""
+                  )}
+              >
+                {authState.deviceCodeData.user_code}
+              </div>
+              <p class="text-xs text-zinc-500">Click code to copy</p>
+
+              <div class="pt-6 space-y-3">
+                   <div class="flex flex-col items-center gap-3">
+                       <div class="animate-spin rounded-full h-6 w-6 border-2 border-zinc-300 dark:border-zinc-600 border-t-indigo-500"></div>
+                       <span class="text-sm text-gray-600 dark:text-zinc-400 font-medium break-all text-center">{authState.msLoginStatus}</span>
+                   </div>
+                   <p class="text-xs text-zinc-600">This window will update automatically.</p>
+              </div>
+              
+              <button
+                onclick={() => { authState.stopPolling(); authState.loginMode = "select"; }}
+                class="text-xs text-zinc-500 hover:text-zinc-300 mt-6 underline"
+                >Cancel</button
+              >
+            </div>
+          {/if}
+        </div>
+      {/if}
+    </div>
+  </div>
+{/if}
diff --git a/packages/ui/src/components/ModLoaderSelector.svelte b/packages/ui/src/components/ModLoaderSelector.svelte
new file mode 100644
index 0000000..50caa8c
--- /dev/null
+++ b/packages/ui/src/components/ModLoaderSelector.svelte
@@ -0,0 +1,455 @@
+<script lang="ts">
+  import { invoke } from "@tauri-apps/api/core";
+  import { listen, type UnlistenFn } from "@tauri-apps/api/event";
+  import type {
+    FabricGameVersion,
+    FabricLoaderVersion,
+    ForgeVersion,
+    ModLoaderType,
+  } from "../types";
+  import { Loader2, Download, AlertCircle, Check, ChevronDown, CheckCircle } from 'lucide-svelte';
+  import { logsState } from "../stores/logs.svelte";
+  import { instancesState } from "../stores/instances.svelte";
+
+  interface Props {
+    selectedGameVersion: string;
+    onInstall: (versionId: string) => void;
+  }
+
+  let { selectedGameVersion, onInstall }: Props = $props();
+
+  // State
+  let selectedLoader = $state<ModLoaderType>("vanilla");
+  let isLoading = $state(false);
+  let isInstalling = $state(false);
+  let error = $state<string | null>(null);
+  let isVersionInstalled = $state(false);
+
+  // Fabric state
+  let fabricLoaders = $state<FabricLoaderVersion[]>([]);
+  let selectedFabricLoader = $state("");
+  let isFabricDropdownOpen = $state(false);
+
+  // Forge state
+  let forgeVersions = $state<ForgeVersion[]>([]);
+  let selectedForgeVersion = $state("");
+  let isForgeDropdownOpen = $state(false);
+
+  let fabricDropdownRef = $state<HTMLDivElement | null>(null);
+  let forgeDropdownRef = $state<HTMLDivElement | null>(null);
+
+  // Check if version is installed when game version changes
+  $effect(() => {
+    if (selectedGameVersion) {
+      checkInstallStatus();
+    }
+  });
+
+  // Load mod loader versions when game version or loader type changes
+  $effect(() => {
+    if (selectedGameVersion && selectedLoader !== "vanilla") {
+      loadModLoaderVersions();
+    }
+  });
+
+  async function checkInstallStatus() {
+    if (!selectedGameVersion || !instancesState.activeInstanceId) {
+      isVersionInstalled = false;
+      return;
+    }
+    try {
+      isVersionInstalled = await invoke<boolean>("check_version_installed", {
+        instanceId: instancesState.activeInstanceId,
+        versionId: selectedGameVersion,
+      });
+    } catch (e) {
+      console.error("Failed to check install status:", e);
+      isVersionInstalled = false;
+    }
+  }
+
+  async function loadModLoaderVersions() {
+    isLoading = true;
+    error = null;
+
+    try {
+      if (selectedLoader === "fabric") {
+        const loaders = await invoke<any[]>("get_fabric_loaders_for_version", {
+          gameVersion: selectedGameVersion,
+        });
+        fabricLoaders = loaders.map((l) => l.loader);
+        if (fabricLoaders.length > 0) {
+          const stable = fabricLoaders.find((l) => l.stable);
+          selectedFabricLoader = stable?.version || fabricLoaders[0].version;
+        }
+      } else if (selectedLoader === "forge") {
+        forgeVersions = await invoke<ForgeVersion[]>(
+          "get_forge_versions_for_game",
+          {
+            gameVersion: selectedGameVersion,
+          }
+        );
+        if (forgeVersions.length > 0) {
+          const recommended = forgeVersions.find((v) => v.recommended);
+          const latest = forgeVersions.find((v) => v.latest);
+          selectedForgeVersion =
+            recommended?.version || latest?.version || forgeVersions[0].version;
+        }
+      }
+    } catch (e) {
+      error = `Failed to load ${selectedLoader} versions: ${e}`;
+      console.error(e);
+    } finally {
+      isLoading = false;
+    }
+  }
+
+  async function installVanilla() {
+    if (!selectedGameVersion) {
+      error = "Please select a Minecraft version first";
+      return;
+    }
+
+    isInstalling = true;
+    error = null;
+    logsState.addLog("info", "Installer", `Starting installation of ${selectedGameVersion}...`);
+
+    if (!instancesState.activeInstanceId) {
+      error = "Please select an instance first";
+      return;
+    }
+    try {
+      await invoke("install_version", {
+        instanceId: instancesState.activeInstanceId,
+        versionId: selectedGameVersion,
+      });
+      logsState.addLog("info", "Installer", `Successfully installed ${selectedGameVersion}`);
+      isVersionInstalled = true;
+      onInstall(selectedGameVersion);
+    } catch (e) {
+      error = `Failed to install: ${e}`;
+      logsState.addLog("error", "Installer", `Installation failed: ${e}`);
+      console.error(e);
+    } finally {
+      isInstalling = false;
+    }
+  }
+
+  async function installModLoader() {
+    if (!selectedGameVersion) {
+      error = "Please select a Minecraft version first";
+      return;
+    }
+
+    if (!instancesState.activeInstanceId) {
+      error = "Please select an instance first";
+      isInstalling = false;
+      return;
+    }
+
+    isInstalling = true;
+    error = null;
+
+    try {
+      // First install the base game if not installed
+      if (!isVersionInstalled) {
+        logsState.addLog("info", "Installer", `Installing base game ${selectedGameVersion} first...`);
+        await invoke("install_version", {
+          instanceId: instancesState.activeInstanceId,
+          versionId: selectedGameVersion,
+        });
+        isVersionInstalled = true;
+      }
+
+      // Then install the mod loader
+      if (selectedLoader === "fabric" && selectedFabricLoader) {
+        logsState.addLog("info", "Installer", `Installing Fabric ${selectedFabricLoader} for ${selectedGameVersion}...`);
+        const result = await invoke<any>("install_fabric", {
+          instanceId: instancesState.activeInstanceId,
+          gameVersion: selectedGameVersion,
+          loaderVersion: selectedFabricLoader,
+        });
+        logsState.addLog("info", "Installer", `Fabric installed successfully: ${result.id}`);
+        onInstall(result.id);
+      } else if (selectedLoader === "forge" && selectedForgeVersion) {
+        logsState.addLog("info", "Installer", `Installing Forge ${selectedForgeVersion} for ${selectedGameVersion}...`);
+        const result = await invoke<any>("install_forge", {
+          instanceId: instancesState.activeInstanceId,
+          gameVersion: selectedGameVersion,
+          forgeVersion: selectedForgeVersion,
+        });
+        logsState.addLog("info", "Installer", `Forge installed successfully: ${result.id}`);
+        onInstall(result.id);
+      }
+    } catch (e) {
+      error = `Failed to install ${selectedLoader}: ${e}`;
+      logsState.addLog("error", "Installer", `Installation failed: ${e}`);
+      console.error(e);
+    } finally {
+      isInstalling = false;
+    }
+  }
+
+  function onLoaderChange(loader: ModLoaderType) {
+    selectedLoader = loader;
+    error = null;
+    if (loader !== "vanilla" && selectedGameVersion) {
+      loadModLoaderVersions();
+    }
+  }
+
+  function handleFabricClickOutside(e: MouseEvent) {
+    if (fabricDropdownRef && !fabricDropdownRef.contains(e.target as Node)) {
+      isFabricDropdownOpen = false;
+    }
+  }
+
+  function handleForgeClickOutside(e: MouseEvent) {
+    if (forgeDropdownRef && !forgeDropdownRef.contains(e.target as Node)) {
+      isForgeDropdownOpen = false;
+    }
+  }
+
+  $effect(() => {
+    if (isFabricDropdownOpen) {
+      document.addEventListener('click', handleFabricClickOutside);
+      return () => document.removeEventListener('click', handleFabricClickOutside);
+    }
+  });
+
+  $effect(() => {
+    if (isForgeDropdownOpen) {
+      document.addEventListener('click', handleForgeClickOutside);
+      return () => document.removeEventListener('click', handleForgeClickOutside);
+    }
+  });
+
+  let selectedFabricLabel = $derived(
+    fabricLoaders.find(l => l.version === selectedFabricLoader)
+      ? `${selectedFabricLoader}${fabricLoaders.find(l => l.version === selectedFabricLoader)?.stable ? ' (stable)' : ''}`
+      : selectedFabricLoader || 'Select version'
+  );
+
+  let selectedForgeLabel = $derived(
+    forgeVersions.find(v => v.version === selectedForgeVersion)
+      ? `${selectedForgeVersion}${forgeVersions.find(v => v.version === selectedForgeVersion)?.recommended ? ' (Recommended)' : ''}`
+      : selectedForgeVersion || 'Select version'
+  );
+</script>
+
+<div class="space-y-4">
+  <div class="flex items-center justify-between">
+      <h3 class="text-xs font-bold uppercase tracking-widest text-zinc-500">Loader Type</h3>
+  </div>
+
+  <!-- Loader Type Tabs - Simple Clean Style -->
+  <div class="flex p-1 bg-zinc-100 dark:bg-zinc-900/50 rounded-sm border border-zinc-200 dark:border-white/5">
+    {#each ['vanilla', 'fabric', 'forge'] as loader}
+        <button
+        class="flex-1 px-3 py-2 rounded-sm text-sm font-medium transition-all duration-200 capitalize
+        {selectedLoader === loader
+            ? 'bg-white dark:bg-white/10 text-black dark:text-white shadow-sm'
+            : 'text-zinc-500 dark:text-zinc-500 hover:text-black dark:hover:text-white'}"
+        onclick={() => onLoaderChange(loader as ModLoaderType)}
+        disabled={isInstalling}
+        >
+        {loader}
+        </button>
+    {/each}
+  </div>
+
+  <!-- Content Area -->
+  <div class="min-h-[100px] flex flex-col justify-center">
+    {#if !selectedGameVersion}
+        <div class="flex items-center gap-3 p-4 bg-amber-50 dark:bg-amber-500/10 border border-amber-200 dark:border-amber-500/20 text-amber-700 dark:text-amber-200 rounded-sm text-sm">
+           <AlertCircle size={16} />
+           <span>Please select a Minecraft version first.</span>
+        </div>
+        
+    {:else if selectedLoader === "vanilla"}
+        <div class="space-y-4 animate-in fade-in slide-in-from-bottom-2 duration-300">
+            <div class="text-center p-4 border border-dashed border-zinc-200 dark:border-white/10 rounded-sm text-zinc-500 text-sm">
+               Standard Minecraft experience. No modifications.
+            </div>
+            
+            {#if isVersionInstalled}
+                <div class="flex items-center justify-center gap-2 p-3 bg-emerald-50 dark:bg-emerald-500/10 border border-emerald-200 dark:border-emerald-500/20 text-emerald-700 dark:text-emerald-300 rounded-sm text-sm">
+                    <CheckCircle size={16} />
+                    <span>Version {selectedGameVersion} is installed</span>
+                </div>
+            {:else}
+                <button
+                    class="w-full bg-emerald-600 hover:bg-emerald-500 disabled:opacity-50 disabled:cursor-not-allowed text-white py-2.5 px-4 rounded-sm font-bold text-sm transition-all flex items-center justify-center gap-2"
+                    onclick={installVanilla}
+                    disabled={isInstalling}
+                >
+                    {#if isInstalling}
+                        <Loader2 class="animate-spin" size={16} />
+                        Installing...
+                    {:else}
+                        <Download size={16} />
+                        Install {selectedGameVersion}
+                    {/if}
+                </button>
+            {/if}
+        </div>
+        
+    {:else if isLoading}
+        <div class="flex flex-col items-center gap-3 text-sm text-zinc-500 py-6">
+            <Loader2 class="animate-spin" size={20} />
+            <span>Fetching {selectedLoader} manifest...</span>
+        </div>
+        
+    {:else if error}
+        <div class="p-4 bg-red-50 border border-red-200 text-red-700 dark:bg-red-500/10 dark:border-red-500/20 dark:text-red-300 rounded-sm text-sm break-words">
+            {error}
+        </div>
+        
+    {:else if selectedLoader === "fabric"}
+        <div class="space-y-4 animate-in fade-in slide-in-from-bottom-2 duration-300">
+        {#if fabricLoaders.length === 0}
+            <div class="text-center p-4 text-sm text-zinc-500 italic">
+            No Fabric versions available for {selectedGameVersion}
+            </div>
+        {:else}
+            <div>
+            <label for="fabric-loader-select" class="block text-[10px] uppercase font-bold text-zinc-500 mb-2"
+            >Loader Version</label
+            >
+            <!-- Custom Fabric Dropdown -->
+            <div class="relative" bind:this={fabricDropdownRef}>
+                <button
+                    type="button"
+                    onclick={() => isFabricDropdownOpen = !isFabricDropdownOpen}
+                    disabled={isInstalling}
+                    class="w-full flex items-center justify-between gap-2 px-4 py-2.5 text-left
+                           bg-white dark:bg-zinc-900 border border-zinc-300 dark:border-zinc-700 rounded-md 
+                           text-sm text-gray-900 dark:text-white
+                           hover:border-zinc-400 dark:hover:border-zinc-600 
+                           focus:border-indigo-500 focus:ring-1 focus:ring-indigo-500/30
+                           transition-colors cursor-pointer outline-none disabled:opacity-50"
+                >
+                    <span class="truncate">{selectedFabricLabel}</span>
+                    <ChevronDown 
+                        size={14} 
+                        class="shrink-0 text-zinc-400 dark:text-zinc-500 transition-transform duration-200 {isFabricDropdownOpen ? 'rotate-180' : ''}" 
+                    />
+                </button>
+
+                {#if isFabricDropdownOpen}
+                    <div 
+                        class="absolute z-50 w-full mt-1 py-1 bg-white dark:bg-zinc-900 border border-zinc-300 dark:border-zinc-700 rounded-md shadow-xl
+                               max-h-48 overflow-y-auto animate-in fade-in slide-in-from-top-1 duration-150"
+                    >
+                        {#each fabricLoaders as loader}
+                            <button
+                                type="button"
+                                onclick={() => { selectedFabricLoader = loader.version; isFabricDropdownOpen = false; }}
+                                class="w-full flex items-center justify-between px-3 py-2 text-sm text-left
+                                       transition-colors outline-none cursor-pointer
+                                       {loader.version === selectedFabricLoader 
+                                         ? 'bg-indigo-600 text-white' 
+                                         : 'text-gray-700 dark:text-zinc-300 hover:bg-zinc-100 dark:hover:bg-zinc-800'}"
+                            >
+                                <span class="truncate">{loader.version} {loader.stable ? "(stable)" : ""}</span>
+                                {#if loader.version === selectedFabricLoader}
+                                    <Check size={14} class="shrink-0 ml-2" />
+                                {/if}
+                            </button>
+                        {/each}
+                    </div>
+                {/if}
+            </div>
+            </div>
+            
+            <button
+                class="w-full bg-indigo-600 hover:bg-indigo-500 disabled:opacity-50 disabled:cursor-not-allowed text-white py-2.5 px-4 rounded-sm font-bold text-sm transition-all flex items-center justify-center gap-2"
+                onclick={installModLoader}
+                disabled={isInstalling || !selectedFabricLoader}
+            >
+                {#if isInstalling}
+                    <Loader2 class="animate-spin" size={16} />
+                    Installing...
+                {:else}
+                    <Download size={16} />
+                    Install Fabric {selectedFabricLoader}
+                {/if}
+            </button>
+        {/if}
+        </div>
+        
+    {:else if selectedLoader === "forge"}
+        <div class="space-y-4 animate-in fade-in slide-in-from-bottom-2 duration-300">
+        {#if forgeVersions.length === 0}
+            <div class="text-center p-4 text-sm text-zinc-500 italic">
+            No Forge versions available for {selectedGameVersion}
+            </div>
+        {:else}
+            <div>
+            <label for="forge-version-select" class="block text-[10px] uppercase font-bold text-zinc-500 mb-2"
+                >Forge Version</label
+            >
+            <!-- Custom Forge Dropdown -->
+            <div class="relative" bind:this={forgeDropdownRef}>
+                <button
+                    type="button"
+                    onclick={() => isForgeDropdownOpen = !isForgeDropdownOpen}
+                    disabled={isInstalling}
+                    class="w-full flex items-center justify-between gap-2 px-4 py-2.5 text-left
+                           bg-white dark:bg-zinc-900 border border-zinc-300 dark:border-zinc-700 rounded-md 
+                           text-sm text-gray-900 dark:text-white
+                           hover:border-zinc-400 dark:hover:border-zinc-600 
+                           focus:border-indigo-500 focus:ring-1 focus:ring-indigo-500/30
+                           transition-colors cursor-pointer outline-none disabled:opacity-50"
+                >
+                    <span class="truncate">{selectedForgeLabel}</span>
+                    <ChevronDown 
+                        size={14} 
+                        class="shrink-0 text-zinc-400 dark:text-zinc-500 transition-transform duration-200 {isForgeDropdownOpen ? 'rotate-180' : ''}" 
+                    />
+                </button>
+
+                {#if isForgeDropdownOpen}
+                    <div 
+                        class="absolute z-50 w-full mt-1 py-1 bg-white dark:bg-zinc-900 border border-zinc-300 dark:border-zinc-700 rounded-md shadow-xl
+                               max-h-48 overflow-y-auto animate-in fade-in slide-in-from-top-1 duration-150"
+                    >
+                        {#each forgeVersions as version}
+                            <button
+                                type="button"
+                                onclick={() => { selectedForgeVersion = version.version; isForgeDropdownOpen = false; }}
+                                class="w-full flex items-center justify-between px-3 py-2 text-sm text-left
+                                       transition-colors outline-none cursor-pointer
+                                       {version.version === selectedForgeVersion 
+                                         ? 'bg-indigo-600 text-white' 
+                                         : 'text-gray-700 dark:text-zinc-300 hover:bg-zinc-100 dark:hover:bg-zinc-800'}"
+                            >
+                                <span class="truncate">{version.version} {version.recommended ? "(Recommended)" : ""}</span>
+                                {#if version.version === selectedForgeVersion}
+                                    <Check size={14} class="shrink-0 ml-2" />
+                                {/if}
+                            </button>
+                        {/each}
+                    </div>
+                {/if}
+            </div>
+            </div>
+            
+            <button
+                class="w-full bg-orange-600 hover:bg-orange-500 disabled:opacity-50 disabled:cursor-not-allowed text-white py-2.5 px-4 rounded-sm font-bold text-sm transition-all flex items-center justify-center gap-2"
+                onclick={installModLoader}
+                disabled={isInstalling || !selectedForgeVersion}
+            >
+                {#if isInstalling}
+                    <Loader2 class="animate-spin" size={16} />
+                    Installing...
+                {:else}
+                    <Download size={16} />
+                    Install Forge {selectedForgeVersion}
+                {/if}
+            </button>
+        {/if}
+        </div>
+    {/if}
+  </div>
+</div>
diff --git a/packages/ui/src/components/ParticleBackground.svelte b/packages/ui/src/components/ParticleBackground.svelte
new file mode 100644
index 0000000..7644b1a
--- /dev/null
+++ b/packages/ui/src/components/ParticleBackground.svelte
@@ -0,0 +1,70 @@
+<script lang="ts" module>
+  import { SaturnEffect } from "../lib/effects/SaturnEffect";
+  
+  // Global reference to the active Saturn effect for external control
+  let globalSaturnEffect: SaturnEffect | null = null;
+  
+  export function getSaturnEffect(): SaturnEffect | null {
+    return globalSaturnEffect;
+  }
+</script>
+
+<script lang="ts">
+  import { onMount, onDestroy } from "svelte";
+  import { ConstellationEffect } from "../lib/effects/ConstellationEffect";
+  import { settingsState } from "../stores/settings.svelte";
+
+  let canvas: HTMLCanvasElement;
+  let activeEffect: any;
+
+  function loadEffect() {
+    if (activeEffect) {
+      activeEffect.destroy();
+    }
+    
+    if (!canvas) return;
+
+    if (settingsState.settings.active_effect === "saturn") {
+      activeEffect = new SaturnEffect(canvas);
+      globalSaturnEffect = activeEffect;
+    } else {
+      activeEffect = new ConstellationEffect(canvas);
+      globalSaturnEffect = null;
+    }
+    
+    // Ensure correct size immediately
+    activeEffect.resize(window.innerWidth, window.innerHeight);
+  }
+
+  $effect(() => {
+    const _ = settingsState.settings.active_effect;
+    if (canvas) {
+        loadEffect();
+    }
+  });
+
+  onMount(() => {
+    const resizeObserver = new ResizeObserver(() => {
+      if (canvas && activeEffect) {
+         activeEffect.resize(window.innerWidth, window.innerHeight);
+      }
+    });
+    
+    resizeObserver.observe(document.body);
+    
+    return () => {
+      resizeObserver.disconnect();
+      if (activeEffect) activeEffect.destroy();
+    };
+  });
+  
+  onDestroy(() => {
+    if (activeEffect) activeEffect.destroy();
+    globalSaturnEffect = null;
+  });
+</script>
+
+<canvas
+  bind:this={canvas}
+  class="absolute inset-0 z-0 pointer-events-none"
+></canvas>
diff --git a/packages/ui/src/components/SettingsView.svelte b/packages/ui/src/components/SettingsView.svelte
new file mode 100644
index 0000000..0020506
--- /dev/null
+++ b/packages/ui/src/components/SettingsView.svelte
@@ -0,0 +1,1217 @@
+<script lang="ts">
+  import { open } from "@tauri-apps/plugin-dialog";
+  import { settingsState } from "../stores/settings.svelte";
+  import CustomSelect from "./CustomSelect.svelte";
+  import ConfigEditorModal from "./ConfigEditorModal.svelte";
+  import { onMount } from "svelte";
+  import { RefreshCw, FileJson } from "lucide-svelte";
+
+  // Use convertFileSrc directly from settingsState.backgroundUrl for cleaner approach
+  // or use the imported one if passing raw path.
+  import { convertFileSrc } from "@tauri-apps/api/core";
+
+  const effectOptions = [
+    { value: "saturn", label: "Saturn" },
+    { value: "constellation", label: "Network (Constellation)" }
+  ];
+
+  const logServiceOptions = [
+    { value: "paste.rs", label: "paste.rs (Free, No Account)" },
+    { value: "pastebin.com", label: "pastebin.com (Requires API Key)" }
+  ];
+
+  const llmProviderOptions = [
+    { value: "ollama", label: "Ollama (Local)" },
+    { value: "openai", label: "OpenAI (Remote)" }
+  ];
+
+  const languageOptions = [
+    { value: "auto", label: "Auto (Match User)" },
+    { value: "English", label: "English" },
+    { value: "Chinese", label: "中文" },
+    { value: "Japanese", label: "日本語" },
+    { value: "Korean", label: "한국어" },
+    { value: "Spanish", label: "Español" },
+    { value: "French", label: "Français" },
+    { value: "German", label: "Deutsch" },
+    { value: "Russian", label: "Русский" },
+  ];
+
+  const ttsProviderOptions = [
+    { value: "disabled", label: "Disabled" },
+    { value: "piper", label: "Piper TTS (Local)" },
+    { value: "edge", label: "Edge TTS (Online)" },
+  ];
+
+  const personas = [
+    {
+      value: "default",
+      label: "Minecraft Expert (Default)",
+      prompt: "You are a helpful Minecraft expert assistant. You help players with game issues, mod installation, performance optimization, and gameplay tips. Analyze any game logs provided and give concise, actionable advice."
+    },
+    {
+      value: "technical",
+      label: "Technical Debugger",
+      prompt: "You are a technical support specialist for Minecraft. Focus strictly on analyzing logs, identifying crash causes, and providing technical solutions. Be precise and avoid conversational filler."
+    },
+    {
+      value: "concise",
+      label: "Concise Helper",
+      prompt: "You are a direct and concise assistant. Provide answers in as few words as possible while remaining accurate. Use bullet points for lists."
+    },
+    {
+      value: "explain",
+      label: "Teacher / Explainer",
+      prompt: "You are a patient teacher. Explain Minecraft concepts, redstone mechanics, and mod features in simple, easy-to-understand terms suitable for beginners."
+    },
+    {
+      value: "pirate",
+      label: "Pirate Captain",
+      prompt: "You are a salty Minecraft Pirate Captain! Yarr! Speak like a pirate while helping the crew (the user) with their blocky adventures. Use terms like 'matey', 'landlubber', and 'treasure'."
+    }
+  ];
+
+  let selectedPersona = $state("");
+
+  function applyPersona(value: string) {
+      const persona = personas.find(p => p.value === value);
+      if (persona) {
+          settingsState.settings.assistant.system_prompt = persona.prompt;
+          selectedPersona = value; // Keep selected to show what's active
+      }
+  }
+
+  function resetSystemPrompt() {
+      const defaultPersona = personas.find(p => p.value === "default");
+      if (defaultPersona) {
+          settingsState.settings.assistant.system_prompt = defaultPersona.prompt;
+          selectedPersona = "default";
+      }
+  }
+
+  // Load models when assistant settings are shown
+  function loadModelsForProvider() {
+    if (settingsState.settings.assistant.llm_provider === "ollama") {
+      settingsState.loadOllamaModels();
+    } else if (settingsState.settings.assistant.llm_provider === "openai") {
+      settingsState.loadOpenaiModels();
+    }
+  }
+
+  async function selectBackground() {
+    try {
+      const selected = await open({
+        multiple: false,
+        filters: [
+          {
+            name: "Images",
+            extensions: ["png", "jpg", "jpeg", "webp", "gif"],
+          },
+        ],
+      });
+
+      if (selected && typeof selected === "string") {
+        settingsState.settings.custom_background_path = selected;
+        settingsState.saveSettings();
+      }
+    } catch (e) {
+      console.error("Failed to select background:", e);
+    }
+  }
+
+  function clearBackground() {
+    settingsState.settings.custom_background_path = undefined;
+    settingsState.saveSettings();
+  }
+
+  let migrating = $state(false);
+  async function runMigrationToSharedCaches() {
+    if (migrating) return;
+    migrating = true;
+    try {
+      const { invoke } = await import("@tauri-apps/api/core");
+      const result = await invoke<{
+        moved_files: number;
+        hardlinks: number;
+        copies: number;
+        saved_mb: number;
+      }>("migrate_shared_caches");
+      
+      // Reload settings to reflect changes
+      await settingsState.loadSettings();
+      
+      // Show success message
+      const msg = `Migration complete! ${result.moved_files} files (${result.hardlinks} hardlinks, ${result.copies} copies), ${result.saved_mb.toFixed(2)} MB saved.`;
+      console.log(msg);
+      alert(msg);
+    } catch (e) {
+      console.error("Migration failed:", e);
+      alert(`Migration failed: ${e}`);
+    } finally {
+      migrating = false;
+    }
+  }
+</script>
+
+<div class="h-full flex flex-col p-6 overflow-hidden">
+  <div class="flex items-center justify-between mb-6">
+     <h2 class="text-3xl font-black bg-clip-text text-transparent bg-gradient-to-r dark:from-white dark:to-white/60 from-gray-900 to-gray-600">Settings</h2>
+     
+     <button 
+        onclick={() => settingsState.openConfigEditor()}
+        class="p-2 hover:bg-white/10 rounded-lg text-zinc-400 hover:text-white transition-colors flex items-center gap-2 text-sm border border-transparent hover:border-white/5"
+        title="Open Settings JSON"
+     >
+        <FileJson size={18} />
+        <span class="hidden sm:inline">Open JSON</span>
+     </button>
+  </div>
+
+  <div class="flex-1 overflow-y-auto pr-2 space-y-6 custom-scrollbar pb-10">
+
+    <!-- Appearance / Background -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+      <h3 class="text-xs font-bold uppercase tracking-widest dark:text-white/40 text-black/40 mb-6 flex items-center gap-2">
+        Appearance
+      </h3>
+      
+      <div class="space-y-4">
+        <div>
+          <label class="block text-sm font-medium dark:text-white/70 text-black/70 mb-3">Custom Background Image</label>
+          
+          <div class="flex items-center gap-6">
+            <!-- Preview -->
+            <div class="w-40 h-24 rounded-xl overflow-hidden dark:bg-black/50 bg-gray-200 border dark:border-white/10 border-black/10 relative group shadow-lg">
+              {#if settingsState.settings.custom_background_path}
+                <img
+                  src={convertFileSrc(settingsState.settings.custom_background_path)}
+                  alt="Background Preview"
+                  class="w-full h-full object-cover"
+                  onerror={(e) => {
+                    console.error("Failed to load image:", settingsState.settings.custom_background_path, e);
+                    // e.currentTarget.style.display = 'none'; 
+                  }}
+                />
+              {:else}
+                <div class="w-full h-full bg-gradient-to-br from-emerald-900 via-zinc-900 to-indigo-950 opacity-100"></div>
+                <div class="absolute inset-0 flex items-center justify-center text-[10px] text-white/50 bg-black/20 ">Default Gradient</div>
+              {/if}
+            </div>
+
+            <!-- Actions -->
+            <div class="flex flex-col gap-2">
+              <button
+                onclick={selectBackground}
+                class="dark:bg-white/10 dark:hover:bg-white/20 bg-black/5 hover:bg-black/10 dark:text-white text-black px-4 py-2 rounded-lg text-sm transition-colors border dark:border-white/5 border-black/5"
+              >
+                Select Image
+              </button>
+              
+              {#if settingsState.settings.custom_background_path}
+                <button
+                  onclick={clearBackground}
+                  class="text-red-400 hover:text-red-300 text-sm px-4 py-1 text-left transition-colors"
+                >
+                  Reset to Default
+                </button>
+              {/if}
+            </div>
+          </div>
+          <p class="text-xs dark:text-white/30 text-black/40 mt-3">
+            Select an image from your computer to replace the default gradient background.
+            Supported formats: PNG, JPG, WEBP, GIF.
+          </p>
+        </div>
+
+        <!-- Visual Settings -->
+        <div class="pt-4 border-t dark:border-white/5 border-black/5 space-y-4">
+             <div class="flex items-center justify-between">
+                <div>
+                   <h4 class="text-sm font-medium dark:text-white/90 text-black/80" id="visual-effects-label">Visual Effects</h4>
+                   <p class="text-xs dark:text-white/40 text-black/50 mt-1">Enable particle effects and animated gradients. (Default: On)</p>
+                </div>
+                <button 
+                    aria-labelledby="visual-effects-label"
+                    onclick={() => { settingsState.settings.enable_visual_effects = !settingsState.settings.enable_visual_effects; settingsState.saveSettings(); }}
+                    class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none {settingsState.settings.enable_visual_effects ? 'bg-indigo-500' : 'dark:bg-white/10 bg-black/10'}"
+                >
+                    <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out {settingsState.settings.enable_visual_effects ? 'translate-x-5' : 'translate-x-0'}"></div>
+                </button>
+             </div>
+
+             {#if settingsState.settings.enable_visual_effects}
+                 <div class="flex items-center justify-between pl-2 border-l-2 dark:border-white/5 border-black/5 ml-1">
+                    <div>
+                       <h4 class="text-sm font-medium dark:text-white/90 text-black/80" id="theme-effect-label">Theme Effect</h4>
+                       <p class="text-xs dark:text-white/40 text-black/50 mt-1">Select the active visual theme.</p>
+                    </div>
+                    <CustomSelect
+                        options={effectOptions}
+                        bind:value={settingsState.settings.active_effect}
+                        onchange={() => settingsState.saveSettings()}
+                        class="w-52"
+                    />
+                 </div>
+             {/if}
+
+             <div class="flex items-center justify-between">
+                <div>
+                   <h4 class="text-sm font-medium dark:text-white/90 text-black/80" id="gpu-acceleration-label">GPU Acceleration</h4>
+                   <p class="text-xs dark:text-white/40 text-black/50 mt-1">Enable GPU acceleration for the interface. (Default: Off, Requires Restart)</p>
+                </div>
+                <button 
+                    aria-labelledby="gpu-acceleration-label"
+                    onclick={() => { settingsState.settings.enable_gpu_acceleration = !settingsState.settings.enable_gpu_acceleration; settingsState.saveSettings(); }}
+                    class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none {settingsState.settings.enable_gpu_acceleration ? 'bg-indigo-500' : 'dark:bg-white/10 bg-black/10'}"
+                >
+                    <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out {settingsState.settings.enable_gpu_acceleration ? 'translate-x-5' : 'translate-x-0'}"></div>
+                </button>
+             </div>
+             
+             <!-- Color Theme Switcher -->
+             <div class="flex items-center justify-between pt-4 border-t dark:border-white/5 border-black/5 opacity-50 cursor-not-allowed">
+                <div>
+                   <h4 class="text-sm font-medium dark:text-white/90 text-black/80" id="color-theme-label">Color Theme</h4>
+                   <p class="text-xs dark:text-white/40 text-black/50 mt-1">Interface color mode. (Locked to Dark)</p>
+                </div>
+                <div class="flex items-center bg-black/5 dark:bg-white/5 rounded-lg p-1 pointer-events-none">
+                    <button
+                        disabled
+                        class="px-3 py-1 rounded-md text-xs font-medium transition-all text-gray-500 dark:text-gray-600"
+                    >
+                        Light
+                    </button>
+                    <button
+                        disabled
+                        class="px-3 py-1 rounded-md text-xs font-medium transition-all bg-indigo-500 text-white shadow-sm"
+                    >
+                        Dark
+                    </button>
+                </div>
+             </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- Java Path -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+      <h3 class="text-xs font-bold uppercase tracking-widest text-white/40 mb-6 flex items-center gap-2">
+        Java Environment
+      </h3>
+      <div class="space-y-4">
+        <div>
+             <label for="java-path" class="block text-sm font-medium text-white/70 mb-2">Java Executable Path</label>
+             <div class="flex gap-2">
+                <input
+                id="java-path"
+                bind:value={settingsState.settings.java_path}
+                type="text"
+                class="bg-black/40 text-white flex-1 px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none font-mono text-xs transition-colors"
+                placeholder="e.g. java, /usr/bin/java"
+                />
+                <button
+                onclick={() => settingsState.detectJava()}
+                disabled={settingsState.isDetectingJava}
+                class="bg-white/10 hover:bg-white/20 disabled:opacity-50 text-white px-4 py-2 rounded-xl border border-white/5 transition-colors whitespace-nowrap text-sm font-medium"
+                >
+                {settingsState.isDetectingJava ? "Detecting..." : "Auto Detect"}
+                </button>
+                <button
+                onclick={() => settingsState.openJavaDownloadModal()}
+                class="bg-indigo-600 hover:bg-indigo-500 text-white px-4 py-2 rounded-xl transition-colors whitespace-nowrap text-sm font-medium"
+                >
+                Download Java
+                </button>
+            </div>
+        </div>
+      
+      {#if settingsState.javaInstallations.length > 0}
+        <div class="mt-4 space-y-2">
+          <p class="text-[10px] text-white/30 uppercase font-bold tracking-wider">Detected Installations</p>
+          {#each settingsState.javaInstallations as java}
+            <button
+              onclick={() => settingsState.selectJava(java.path)}
+              class="w-full text-left p-3 rounded-lg border transition-all duration-200 group
+              {settingsState.settings.java_path === java.path 
+                ? 'bg-indigo-500/20 border-indigo-500/30' 
+                : 'bg-black/20 border-white/5 hover:bg-white/5 hover:border-white/10'}"
+            >
+              <div class="flex justify-between items-center">
+                <div>
+                  <span class="text-white font-mono text-xs font-bold">{java.version}</span>
+                  <span class="text-white/40 text-[10px] ml-2">{java.is_64bit ? "64-bit" : "32-bit"}</span>
+                </div>
+                {#if settingsState.settings.java_path === java.path}
+                  <span class="text-indigo-300 text-[10px] font-bold uppercase tracking-wider">Selected</span>
+                {/if}
+              </div>
+              <div class="text-white/30 text-[10px] font-mono truncate mt-1 group-hover:text-white/50">{java.path}</div>
+            </button>
+          {/each}
+        </div>
+      {/if}
+      </div>
+    </div>
+
+    <!-- Memory -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+      <h3 class="text-xs font-bold uppercase tracking-widest text-white/40 mb-6 flex items-center gap-2">
+        Memory Allocation (RAM)
+      </h3>
+      <div class="grid grid-cols-2 gap-6">
+        <div>
+          <label for="min-memory" class="block text-sm font-medium text-white/70 mb-2">Minimum (MB)</label>
+          <input
+            id="min-memory"
+            bind:value={settingsState.settings.min_memory}
+            type="number"
+            class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none transition-colors"
+          />
+        </div>
+        <div>
+          <label for="max-memory" class="block text-sm font-medium text-white/70 mb-2">Maximum (MB)</label>
+          <input
+            id="max-memory"
+            bind:value={settingsState.settings.max_memory}
+            type="number"
+            class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none transition-colors"
+          />
+        </div>
+      </div>
+    </div>
+
+    <!-- Resolution -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+      <h3 class="text-xs font-bold uppercase tracking-widest text-white/40 mb-6 flex items-center gap-2">
+        Game Window Size
+      </h3>
+      <div class="grid grid-cols-2 gap-6">
+        <div>
+          <label for="window-width" class="block text-sm font-medium text-white/70 mb-2">Width</label>
+          <input
+            id="window-width"
+            bind:value={settingsState.settings.width}
+            type="number"
+            class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none transition-colors"
+          />
+        </div>
+        <div>
+          <label for="window-height" class="block text-sm font-medium text-white/70 mb-2">Height</label>
+          <input
+            id="window-height"
+            bind:value={settingsState.settings.height}
+            type="number"
+            class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none transition-colors"
+          />
+        </div>
+      </div>
+    </div>
+
+    <!-- Download Settings -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+        <h3 class="text-xs font-bold uppercase tracking-widest text-white/40 mb-6 flex items-center gap-2">
+            Network
+        </h3>
+        <div>
+            <label for="download-threads" class="block text-sm font-medium text-white/70 mb-2">Concurrent Download Threads</label>
+            <input
+              id="download-threads"
+              bind:value={settingsState.settings.download_threads}
+              type="number"
+              min="1"
+              max="128"
+              class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none transition-colors"
+            />
+            <p class="text-xs text-white/30 mt-2">Higher values usually mean faster downloads but use more CPU/Network.</p>
+        </div>
+    </div>
+
+    <!-- Storage & Caches -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+      <h3 class="text-xs font-bold uppercase tracking-widest text-white/40 mb-6 flex items-center gap-2">Storage & Version Caches</h3>
+      <div class="space-y-4">
+        <div class="flex items-center justify-between">
+          <div>
+            <h4 class="text-sm font-medium text-white/90" id="shared-caches-label">Use Shared Caches</h4>
+            <p class="text-xs text-white/40 mt-1">Store versions/libraries/assets in a global cache shared by all instances.</p>
+          </div>
+          <button
+            aria-labelledby="shared-caches-label"
+            onclick={() => { settingsState.settings.use_shared_caches = !settingsState.settings.use_shared_caches; settingsState.saveSettings(); }}
+            class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none {settingsState.settings.use_shared_caches ? 'bg-indigo-500' : 'bg-white/10'}"
+          >
+            <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out {settingsState.settings.use_shared_caches ? 'translate-x-5' : 'translate-x-0'}"></div>
+          </button>
+        </div>
+
+        <div class="flex items-center justify-between">
+          <div>
+            <h4 class="text-sm font-medium text-white/90" id="legacy-storage-label">Keep Legacy Per-Instance Storage</h4>
+            <p class="text-xs text-white/40 mt-1">Do not migrate existing instance caches; keep current layout.</p>
+          </div>
+          <button
+            aria-labelledby="legacy-storage-label"
+            onclick={() => { settingsState.settings.keep_legacy_per_instance_storage = !settingsState.settings.keep_legacy_per_instance_storage; settingsState.saveSettings(); }}
+            class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none {settingsState.settings.keep_legacy_per_instance_storage ? 'bg-indigo-500' : 'bg-white/10'}"
+          >
+            <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out {settingsState.settings.keep_legacy_per_instance_storage ? 'translate-x-5' : 'translate-x-0'}"></div>
+          </button>
+        </div>
+
+        <div class="flex items-center justify-between pt-2 border-t border-white/10">
+          <div>
+            <h4 class="text-sm font-medium text-white/90">Run Migration</h4>
+            <p class="text-xs text-white/40 mt-1">Hard-link or copy existing per-instance caches into the shared cache.</p>
+          </div>
+          <button 
+            onclick={runMigrationToSharedCaches} 
+            disabled={migrating}
+            class="px-4 py-2 rounded-lg bg-indigo-600 hover:bg-indigo-500 text-white text-sm disabled:opacity-50 disabled:cursor-not-allowed"
+          >
+            {migrating ? "Migrating..." : "Migrate Now"}
+          </button>
+        </div>
+      </div>
+    </div>
+
+    <!-- Feature Flags -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+      <h3 class="text-xs font-bold uppercase tracking-widest text-white/40 mb-6 flex items-center gap-2">Feature Flags (Launcher Arguments)</h3>
+      <div class="space-y-4">
+        <div class="flex items-center justify-between">
+          <div>
+            <h4 class="text-sm font-medium text-white/90" id="demo-user-label">Demo User</h4>
+            <p class="text-xs text-white/40 mt-1">Enable demo-related arguments when rules require them.</p>
+          </div>
+          <button
+            aria-labelledby="demo-user-label"
+            onclick={() => { settingsState.settings.feature_flags.demo_user = !settingsState.settings.feature_flags.demo_user; settingsState.saveSettings(); }}
+            class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none {settingsState.settings.feature_flags.demo_user ? 'bg-indigo-500' : 'bg-white/10'}"
+          >
+            <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out {settingsState.settings.feature_flags.demo_user ? 'translate-x-5' : 'translate-x-0'}"></div>
+          </button>
+        </div>
+
+        <div class="flex items-center justify-between">
+          <div>
+            <h4 class="text-sm font-medium text-white/90" id="quick-play-label">Quick Play</h4>
+            <p class="text-xs text-white/40 mt-1">Enable quick play singleplayer/multiplayer arguments.</p>
+          </div>
+          <button
+            aria-labelledby="quick-play-label"
+            onclick={() => { settingsState.settings.feature_flags.quick_play_enabled = !settingsState.settings.feature_flags.quick_play_enabled; settingsState.saveSettings(); }}
+            class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none {settingsState.settings.feature_flags.quick_play_enabled ? 'bg-indigo-500' : 'bg-white/10'}"
+          >
+            <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out {settingsState.settings.feature_flags.quick_play_enabled ? 'translate-x-5' : 'translate-x-0'}"></div>
+          </button>
+        </div>
+
+        {#if settingsState.settings.feature_flags.quick_play_enabled}
+          <div class="grid grid-cols-1 md:grid-cols-2 gap-4 pl-2 border-l-2 border-white/10">
+            <div>
+              <label class="block text-sm font-medium text-white/70 mb-2">Singleplayer World Path</label>
+              <input
+                type="text"
+                bind:value={settingsState.settings.feature_flags.quick_play_path}
+                placeholder="/path/to/saves/MyWorld"
+                class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none font-mono text-xs transition-colors"
+              />
+            </div>
+            <div class="flex items-center justify-between">
+              <div>
+                <h4 class="text-sm font-medium text-white/90" id="qp-singleplayer-label">Prefer Singleplayer</h4>
+                <p class="text-xs text-white/40 mt-1">If enabled, use singleplayer quick play path.</p>
+              </div>
+              <button
+                aria-labelledby="qp-singleplayer-label"
+                onclick={() => { settingsState.settings.feature_flags.quick_play_singleplayer = !settingsState.settings.feature_flags.quick_play_singleplayer; settingsState.saveSettings(); }}
+                class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none {settingsState.settings.feature_flags.quick_play_singleplayer ? 'bg-indigo-500' : 'bg-white/10'}"
+              >
+                <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out {settingsState.settings.feature_flags.quick_play_singleplayer ? 'translate-x-5' : 'translate-x-0'}"></div>
+              </button>
+            </div>
+            <div>
+              <label class="block text-sm font-medium text-white/70 mb-2">Multiplayer Server Address</label>
+              <input
+                type="text"
+                bind:value={settingsState.settings.feature_flags.quick_play_multiplayer_server}
+                placeholder="example.org:25565"
+                class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none font-mono text-xs transition-colors"
+              />
+            </div>
+          </div>
+        {/if}
+      </div>
+    </div>
+
+    <!-- Debug / Logs -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+        <h3 class="text-xs font-bold uppercase tracking-widest text-white/40 mb-6 flex items-center gap-2">
+            Debug & Logs
+        </h3>
+        <div class="space-y-4">
+            <div>
+                <label for="log-service" class="block text-sm font-medium text-white/70 mb-2">Log Upload Service</label>
+                <CustomSelect
+                    options={logServiceOptions}
+                    bind:value={settingsState.settings.log_upload_service}
+                    class="w-full"
+                />
+            </div>
+
+            {#if settingsState.settings.log_upload_service === 'pastebin.com'}
+                <div>
+                    <label for="pastebin-key" class="block text-sm font-medium text-white/70 mb-2">Pastebin Dev API Key</label>
+                    <input
+                        id="pastebin-key"
+                        type="password"
+                        bind:value={settingsState.settings.pastebin_api_key}
+                        placeholder="Enter your API Key"
+                        class="dark:bg-zinc-900 bg-white dark:text-white text-black w-full px-4 py-3 rounded-xl border dark:border-zinc-700 border-gray-300 focus:border-indigo-500 focus:ring-1 focus:ring-indigo-500/30 outline-none transition-colors placeholder:text-zinc-500"
+                    />
+                    <p class="text-xs text-white/30 mt-2">
+                        Get your API key from <a href="https://pastebin.com/doc_api#1" target="_blank" class="text-indigo-400 hover:underline">Pastebin API Documentation</a>.
+                    </p>
+                </div>
+            {/if}
+        </div>
+    </div>
+
+    <!-- AI Assistant -->
+    <div class="dark:bg-[#09090b] bg-white p-6 rounded-sm border dark:border-white/10 border-gray-200 shadow-sm">
+        <h3 class="text-xs font-bold uppercase tracking-widest text-white/40 mb-6 flex items-center gap-2">
+            <svg class="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                <rect x="3" y="11" width="18" height="10" rx="2"/>
+                <circle cx="12" cy="5" r="2"/>
+                <path d="M12 7v4"/>
+                <circle cx="8" cy="16" r="1" fill="currentColor"/>
+                <circle cx="16" cy="16" r="1" fill="currentColor"/>
+            </svg>
+            AI Assistant
+        </h3>
+        <div class="space-y-6">
+            <!-- Enable/Disable -->
+            <div class="flex items-center justify-between">
+                <div>
+                   <h4 class="text-sm font-medium dark:text-white/90 text-black/80" id="assistant-enabled-label">Enable Assistant</h4>
+                   <p class="text-xs dark:text-white/40 text-black/50 mt-1">Toggle the AI assistant feature on or off.</p>
+                </div>
+                <button 
+                    aria-labelledby="assistant-enabled-label"
+                    onclick={() => { settingsState.settings.assistant.enabled = !settingsState.settings.assistant.enabled; settingsState.saveSettings(); }}
+                    class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none {settingsState.settings.assistant.enabled ? 'bg-indigo-500' : 'dark:bg-white/10 bg-black/10'}"
+                >
+                    <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out {settingsState.settings.assistant.enabled ? 'translate-x-5' : 'translate-x-0'}"></div>
+                </button>
+            </div>
+
+            {#if settingsState.settings.assistant.enabled}
+                <!-- LLM Provider Section -->
+                <div class="pt-4 border-t dark:border-white/5 border-black/5">
+                    <h4 class="text-xs font-bold uppercase tracking-widest text-white/30 mb-4">Language Model</h4>
+                    
+                    <div class="space-y-4">
+                        <div>
+                            <label for="llm-provider" class="block text-sm font-medium text-white/70 mb-2">Provider</label>
+                            <CustomSelect
+                                options={llmProviderOptions}
+                                bind:value={settingsState.settings.assistant.llm_provider}
+                                onchange={() => settingsState.saveSettings()}
+                                class="w-full"
+                            />
+                        </div>
+
+                        {#if settingsState.settings.assistant.llm_provider === 'ollama'}
+                            <!-- Ollama Settings -->
+                            <div class="pl-4 border-l-2 border-indigo-500/30 space-y-4">
+                                <div>
+                                    <label for="ollama-endpoint" class="block text-sm font-medium text-white/70 mb-2">API Endpoint</label>
+                                    <div class="flex gap-2">
+                                        <input
+                                            id="ollama-endpoint"
+                                            type="text"
+                                            bind:value={settingsState.settings.assistant.ollama_endpoint}
+                                            placeholder="http://localhost:11434"
+                                            class="bg-black/40 text-white flex-1 px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none font-mono text-xs transition-colors"
+                                        />
+                                        <button
+                                            onclick={() => settingsState.loadOllamaModels()}
+                                            disabled={settingsState.isLoadingOllamaModels}
+                                            class="px-4 py-2 bg-white/10 hover:bg-white/20 disabled:opacity-50 text-white rounded-xl border border-white/5 transition-colors whitespace-nowrap text-sm font-medium flex items-center gap-2"
+                                            title="Refresh models"
+                                        >
+                                            <RefreshCw size={14} class={settingsState.isLoadingOllamaModels ? "animate-spin" : ""} />
+                                            <span class="hidden sm:inline">Refresh</span>
+                                        </button>
+                                    </div>
+                                    <p class="text-xs text-white/30 mt-2">
+                                        Default: http://localhost:11434. Make sure Ollama is running.
+                                    </p>
+                                </div>
+
+                                <div>
+                                    <div class="flex items-center justify-between mb-2">
+                                        <label for="ollama-model" class="block text-sm font-medium text-white/70">Model</label>
+                                        {#if settingsState.ollamaModels.length > 0}
+                                            <span class="text-[10px] text-emerald-400 bg-emerald-500/10 px-2 py-0.5 rounded-full">
+                                                {settingsState.ollamaModels.length} installed
+                                            </span>
+                                        {/if}
+                                    </div>
+                                    
+                                    {#if settingsState.isLoadingOllamaModels}
+                                        <div class="bg-black/40 text-white/50 w-full px-4 py-3 rounded-xl border border-white/10 text-sm flex items-center gap-2">
+                                            <RefreshCw size={14} class="animate-spin" />
+                                            Loading models...
+                                        </div>
+                                    {:else if settingsState.ollamaModelsError}
+                                        <div class="bg-red-500/10 text-red-400 w-full px-4 py-3 rounded-xl border border-red-500/20 text-sm">
+                                            {settingsState.ollamaModelsError}
+                                        </div>
+                                        <CustomSelect
+                                            options={settingsState.currentModelOptions}
+                                            bind:value={settingsState.settings.assistant.ollama_model}
+                                            onchange={() => settingsState.saveSettings()}
+                                            class="w-full mt-2"
+                                            allowCustom={true}
+                                        />
+                                    {:else if settingsState.ollamaModels.length === 0}
+                                        <div class="bg-amber-500/10 text-amber-400 w-full px-4 py-3 rounded-xl border border-amber-500/20 text-sm">
+                                            No models found. Click Refresh to load installed models.
+                                        </div>
+                                        <CustomSelect
+                                            options={settingsState.currentModelOptions}
+                                            bind:value={settingsState.settings.assistant.ollama_model}
+                                            onchange={() => settingsState.saveSettings()}
+                                            class="w-full mt-2"
+                                            allowCustom={true}
+                                        />
+                                    {:else}
+                                        <CustomSelect
+                                            options={settingsState.currentModelOptions}
+                                            bind:value={settingsState.settings.assistant.ollama_model}
+                                            onchange={() => settingsState.saveSettings()}
+                                            class="w-full"
+                                            allowCustom={true}
+                                        />
+                                    {/if}
+                                    
+                                    <p class="text-xs text-white/30 mt-2">
+                                        Run <code class="bg-black/30 px-1 rounded">ollama pull {'<model>'}</code> to download new models. Or type a custom model name above.
+                                    </p>
+                                </div>
+                            </div>
+                        {:else if settingsState.settings.assistant.llm_provider === 'openai'}
+                            <!-- OpenAI Settings -->
+                            <div class="pl-4 border-l-2 border-emerald-500/30 space-y-4">
+                                <div>
+                                    <label for="openai-key" class="block text-sm font-medium text-white/70 mb-2">API Key</label>
+                                    <div class="flex gap-2">
+                                        <input
+                                            id="openai-key"
+                                            type="password"
+                                            bind:value={settingsState.settings.assistant.openai_api_key}
+                                            placeholder="sk-..."
+                                            class="bg-black/40 text-white flex-1 px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none font-mono text-xs transition-colors"
+                                        />
+                                        <button
+                                            onclick={() => settingsState.loadOpenaiModels()}
+                                            disabled={settingsState.isLoadingOpenaiModels || !settingsState.settings.assistant.openai_api_key}
+                                            class="px-4 py-2 bg-white/10 hover:bg-white/20 disabled:opacity-50 text-white rounded-xl border border-white/5 transition-colors whitespace-nowrap text-sm font-medium flex items-center gap-2"
+                                            title="Refresh models"
+                                        >
+                                            <RefreshCw size={14} class={settingsState.isLoadingOpenaiModels ? "animate-spin" : ""} />
+                                            <span class="hidden sm:inline">Load</span>
+                                        </button>
+                                    </div>
+                                    <p class="text-xs text-white/30 mt-2">
+                                        Get your API key from <a href="https://platform.openai.com/api-keys" target="_blank" class="text-indigo-400 hover:underline">OpenAI Dashboard</a>.
+                                    </p>
+                                </div>
+
+                                <div>
+                                    <label for="openai-endpoint" class="block text-sm font-medium text-white/70 mb-2">API Endpoint</label>
+                                    <input
+                                        id="openai-endpoint"
+                                        type="text"
+                                        bind:value={settingsState.settings.assistant.openai_endpoint}
+                                        placeholder="https://api.openai.com/v1"
+                                        class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none font-mono text-xs transition-colors"
+                                    />
+                                    <p class="text-xs text-white/30 mt-2">
+                                        Use custom endpoint for Azure OpenAI or other compatible APIs.
+                                    </p>
+                                </div>
+
+                                <div>
+                                    <div class="flex items-center justify-between mb-2">
+                                        <label for="openai-model" class="block text-sm font-medium text-white/70">Model</label>
+                                        {#if settingsState.openaiModels.length > 0}
+                                            <span class="text-[10px] text-emerald-400 bg-emerald-500/10 px-2 py-0.5 rounded-full">
+                                                {settingsState.openaiModels.length} available
+                                            </span>
+                                        {/if}
+                                    </div>
+                                    
+                                    {#if settingsState.isLoadingOpenaiModels}
+                                        <div class="bg-black/40 text-white/50 w-full px-4 py-3 rounded-xl border border-white/10 text-sm flex items-center gap-2">
+                                            <RefreshCw size={14} class="animate-spin" />
+                                            Loading models...
+                                        </div>
+                                    {:else if settingsState.openaiModelsError}
+                                        <div class="bg-red-500/10 text-red-400 w-full px-4 py-3 rounded-xl border border-red-500/20 text-sm mb-2">
+                                            {settingsState.openaiModelsError}
+                                        </div>
+                                        <CustomSelect
+                                            options={settingsState.currentModelOptions}
+                                            bind:value={settingsState.settings.assistant.openai_model}
+                                            onchange={() => settingsState.saveSettings()}
+                                            class="w-full"
+                                            allowCustom={true}
+                                        />
+                                    {:else}
+                                        <CustomSelect
+                                            options={settingsState.currentModelOptions}
+                                            bind:value={settingsState.settings.assistant.openai_model}
+                                            onchange={() => settingsState.saveSettings()}
+                                            class="w-full"
+                                            allowCustom={true}
+                                        />
+                                    {/if}
+                                </div>
+                            </div>
+                        {/if}
+                    </div>
+                </div>
+
+                <!-- Response Settings -->
+                <div class="pt-4 border-t dark:border-white/5 border-black/5">
+                    <h4 class="text-xs font-bold uppercase tracking-widest text-white/30 mb-4">Response Settings</h4>
+                    
+                    <div class="space-y-4">
+                        <div>
+                            <label for="response-lang" class="block text-sm font-medium text-white/70 mb-2">Response Language</label>
+                            <CustomSelect
+                                options={languageOptions}
+                                bind:value={settingsState.settings.assistant.response_language}
+                                onchange={() => settingsState.saveSettings()}
+                                class="w-full"
+                            />
+                        </div>
+
+                        <div>
+                            <div class="flex items-center justify-between mb-2">
+                                <label for="system-prompt" class="block text-sm font-medium text-white/70">System Prompt</label>
+                                <button 
+                                    onclick={resetSystemPrompt}
+                                    class="text-xs text-indigo-400 hover:text-indigo-300 transition-colors flex items-center gap-1 opacity-80 hover:opacity-100"
+                                    title="Reset to default prompt"
+                                >
+                                    <RefreshCw size={10} />
+                                    Reset
+                                </button>
+                            </div>
+
+                            <div class="mb-3">
+                                <CustomSelect 
+                                    options={personas.map(p => ({ value: p.value, label: p.label }))}
+                                    bind:value={selectedPersona}
+                                    placeholder="Load a preset persona..."
+                                    onchange={applyPersona}
+                                    class="w-full"
+                                />
+                            </div>
+
+                            <textarea
+                                id="system-prompt"
+                                bind:value={settingsState.settings.assistant.system_prompt}
+                                oninput={() => selectedPersona = ""} 
+                                rows="4"
+                                placeholder="You are a helpful Minecraft expert assistant..."
+                                class="bg-black/40 text-white w-full px-4 py-3 rounded-xl border border-white/10 focus:border-indigo-500/50 outline-none text-sm transition-colors resize-none"
+                            ></textarea>
+                            <p class="text-xs text-white/30 mt-2">
+                                Customize how the assistant behaves and responds.
+                            </p>
+                        </div>
+                    </div>
+                </div>
+
+                <!-- TTS Settings -->
+                <div class="pt-4 border-t dark:border-white/5 border-black/5">
+                    <h4 class="text-xs font-bold uppercase tracking-widest text-white/30 mb-4">Text-to-Speech (Coming Soon)</h4>
+                    
+                    <div class="space-y-4 opacity-50 pointer-events-none">
+                        <div class="flex items-center justify-between">
+                            <div>
+                               <h4 class="text-sm font-medium dark:text-white/90 text-black/80">Enable TTS</h4>
+                               <p class="text-xs dark:text-white/40 text-black/50 mt-1">Read assistant responses aloud.</p>
+                            </div>
+                            <button 
+                                disabled
+                                class="w-11 h-6 rounded-full transition-colors duration-200 ease-in-out relative focus:outline-none dark:bg-white/10 bg-black/10"
+                            >
+                                <div class="absolute top-1 left-1 bg-white w-4 h-4 rounded-full shadow-sm transition-transform duration-200 ease-in-out translate-x-0"></div>
+                            </button>
+                        </div>
+
+                        <div>
+                            <label class="block text-sm font-medium text-white/70 mb-2">TTS Provider</label>
+                            <CustomSelect
+                                options={ttsProviderOptions}
+                                value="disabled"
+                                class="w-full"
+                            />
+                        </div>
+                    </div>
+                </div>
+            {/if}
+        </div>
+    </div>
+
+    <div class="pt-4 flex justify-end">
+      <button
+        onclick={() => settingsState.saveSettings()}
+        class="bg-gradient-to-r from-emerald-600 to-green-600 hover:from-emerald-500 hover:to-green-500 text-white font-bold py-3 px-8 rounded-xl shadow-lg shadow-emerald-500/20 transition-all hover:scale-105 active:scale-95"
+      >
+        Save Settings
+      </button>
+    </div>
+  </div>
+</div>
+
+{#if settingsState.showConfigEditor}
+    <ConfigEditorModal />
+{/if}
+
+<!-- Java Download Modal -->
+{#if settingsState.showJavaDownloadModal}
+  <div class="fixed inset-0 z-[100] flex items-center justify-center backdrop-blur-sm bg-black/70">
+    <div class="bg-zinc-900 rounded-2xl border border-white/10 shadow-2xl w-[900px] max-w-[95vw] h-[600px] max-h-[90vh] flex flex-col overflow-hidden">
+      <!-- Header -->
+      <div class="flex items-center justify-between p-5 border-b border-white/10">
+        <h3 class="text-xl font-bold text-white">Download Java</h3>
+        <button
+          aria-label="Close dialog"
+          onclick={() => settingsState.closeJavaDownloadModal()}
+          disabled={settingsState.isDownloadingJava}
+          class="text-white/40 hover:text-white/80 disabled:opacity-50 transition-colors p-1"
+        >
+          <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"/>
+          </svg>
+        </button>
+      </div>
+
+      <!-- Main Content Area -->
+      <div class="flex flex-1 overflow-hidden">
+        <!-- Left Sidebar: Sources -->
+        <div class="w-40 border-r border-white/10 p-3 flex flex-col gap-1">
+          <span class="text-[10px] font-bold uppercase tracking-widest text-white/30 px-2 mb-2">Sources</span>
+          
+          <button
+            disabled
+            class="flex items-center gap-2 px-3 py-2.5 rounded-lg text-left text-sm opacity-40 cursor-not-allowed text-white/50"
+          >
+            <div class="w-5 h-5 rounded bg-white/10 flex items-center justify-center text-[10px]">M</div>
+            Mojang
+          </button>
+          
+          <button
+            class="flex items-center gap-2 px-3 py-2.5 rounded-lg text-left text-sm bg-indigo-500/20 border border-indigo-500/40 text-white"
+          >
+            <div class="w-5 h-5 rounded bg-indigo-500 flex items-center justify-center text-[10px] font-bold">A</div>
+            Adoptium
+          </button>
+          
+          <button
+            disabled
+            class="flex items-center gap-2 px-3 py-2.5 rounded-lg text-left text-sm opacity-40 cursor-not-allowed text-white/50"
+          >
+            <div class="w-5 h-5 rounded bg-white/10 flex items-center justify-center text-[10px]">Z</div>
+            Azul Zulu
+          </button>
+        </div>
+
+        <!-- Center: Version Selection -->
+        <div class="flex-1 flex flex-col overflow-hidden">
+          <!-- Toolbar -->
+          <div class="flex items-center gap-3 p-4 border-b border-white/5">
+            <!-- Search -->
+            <div class="relative flex-1 max-w-xs">
+              <input
+                type="text"
+                bind:value={settingsState.searchQuery}
+                placeholder="Search versions..."
+                class="w-full bg-black/30 text-white text-sm px-4 py-2 pl-9 rounded-lg border border-white/10 focus:border-indigo-500/50 outline-none"
+              />
+              <svg class="absolute left-3 top-2.5 w-4 h-4 text-white/30" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"/>
+              </svg>
+            </div>
+            
+            <!-- Recommended Filter -->
+            <label class="flex items-center gap-2 text-sm text-white/60 cursor-pointer select-none">
+              <input
+                type="checkbox"
+                bind:checked={settingsState.showOnlyRecommended}
+                class="w-4 h-4 rounded border-white/20 bg-black/30 text-indigo-500 focus:ring-indigo-500/30"
+              />
+              LTS Only
+            </label>
+
+            <!-- Image Type Toggle -->
+            <div class="flex items-center bg-black/30 rounded-lg p-0.5 border border-white/10">
+              <button
+                onclick={() => settingsState.selectedImageType = "jre"}
+                class="px-3 py-1.5 rounded-md text-xs font-medium transition-all {settingsState.selectedImageType === 'jre' ? 'bg-indigo-500 text-white shadow' : 'text-white/50 hover:text-white/80'}"
+              >
+                JRE
+              </button>
+              <button
+                onclick={() => settingsState.selectedImageType = "jdk"}
+                class="px-3 py-1.5 rounded-md text-xs font-medium transition-all {settingsState.selectedImageType === 'jdk' ? 'bg-indigo-500 text-white shadow' : 'text-white/50 hover:text-white/80'}"
+              >
+                JDK
+              </button>
+            </div>
+          </div>
+
+          <!-- Loading State -->
+          {#if settingsState.isLoadingCatalog}
+            <div class="flex-1 flex items-center justify-center text-white/50">
+              <div class="flex flex-col items-center gap-3">
+                <div class="w-8 h-8 border-2 border-indigo-500/30 border-t-indigo-500 rounded-full animate-spin"></div>
+                <span class="text-sm">Loading Java versions...</span>
+              </div>
+            </div>
+          {:else if settingsState.catalogError}
+            <div class="flex-1 flex items-center justify-center text-red-400">
+              <div class="flex flex-col items-center gap-3 text-center px-8">
+                <svg class="w-10 h-10" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"/>
+                </svg>
+                <span class="text-sm">{settingsState.catalogError}</span>
+                <button
+                  onclick={() => settingsState.refreshCatalog()}
+                  class="mt-2 px-4 py-2 bg-white/10 hover:bg-white/20 rounded-lg text-sm text-white transition-colors"
+                >
+                  Retry
+                </button>
+              </div>
+            </div>
+          {:else}
+            <!-- Version List -->
+            <div class="flex-1 overflow-auto p-4">
+              <div class="space-y-2">
+                {#each settingsState.availableMajorVersions as version}
+                  {@const isLts = settingsState.javaCatalog?.lts_versions.includes(version)}
+                  {@const isSelected = settingsState.selectedMajorVersion === version}
+                  {@const releaseInfo = settingsState.javaCatalog?.releases.find(r => r.major_version === version && r.image_type === settingsState.selectedImageType)}
+                  {@const isAvailable = releaseInfo?.is_available ?? false}
+                  {@const installStatus = releaseInfo ? settingsState.getInstallStatus(releaseInfo) : 'download'}
+                  
+                  <button
+                    onclick={() => settingsState.selectMajorVersion(version)}
+                    disabled={!isAvailable}
+                    class="w-full flex items-center gap-4 p-3 rounded-xl border transition-all text-left
+                      {isSelected 
+                        ? 'bg-indigo-500/20 border-indigo-500/50 ring-2 ring-indigo-500/30' 
+                        : isAvailable 
+                          ? 'bg-black/20 border-white/10 hover:bg-white/5 hover:border-white/20' 
+                          : 'bg-black/10 border-white/5 opacity-40 cursor-not-allowed'}"
+                  >
+                    <!-- Version Number -->
+                    <div class="w-14 text-center">
+                      <span class="text-xl font-bold {isSelected ? 'text-white' : 'text-white/80'}">{version}</span>
+                    </div>
+                    
+                    <!-- Version Details -->
+                    <div class="flex-1 min-w-0">
+                      <div class="flex items-center gap-2">
+                        <span class="text-sm text-white/70 font-mono truncate">{releaseInfo?.version ?? '--'}</span>
+                        {#if isLts}
+                          <span class="px-1.5 py-0.5 bg-emerald-500/20 text-emerald-400 text-[9px] font-bold rounded uppercase shrink-0">LTS</span>
+                        {/if}
+                      </div>
+                      {#if releaseInfo}
+                        <div class="text-[10px] text-white/40 truncate mt-0.5">
+                          {releaseInfo.release_name} • {settingsState.formatBytes(releaseInfo.file_size)}
+                        </div>
+                      {/if}
+                    </div>
+                    
+                    <!-- Install Status Badge -->
+                    <div class="shrink-0">
+                      {#if installStatus === 'installed'}
+                        <span class="px-2 py-1 bg-emerald-500/20 text-emerald-400 text-[10px] font-bold rounded uppercase">Installed</span>
+                      {:else if isAvailable}
+                        <span class="px-2 py-1 bg-white/10 text-white/50 text-[10px] font-medium rounded">Download</span>
+                      {:else}
+                        <span class="px-2 py-1 bg-red-500/10 text-red-400/60 text-[10px] font-medium rounded">N/A</span>
+                      {/if}
+                    </div>
+                  </button>
+                {/each}
+              </div>
+            </div>
+          {/if}
+        </div>
+
+        <!-- Right Sidebar: Details -->
+        <div class="w-64 border-l border-white/10 flex flex-col">
+          <div class="p-4 border-b border-white/5">
+            <span class="text-[10px] font-bold uppercase tracking-widest text-white/30">Details</span>
+          </div>
+          
+          {#if settingsState.selectedRelease}
+            <div class="flex-1 p-4 space-y-4 overflow-auto">
+              <div>
+                <div class="text-[10px] text-white/40 uppercase tracking-wider mb-1">Version</div>
+                <div class="text-sm text-white font-mono">{settingsState.selectedRelease.version}</div>
+              </div>
+              
+              <div>
+                <div class="text-[10px] text-white/40 uppercase tracking-wider mb-1">Release Name</div>
+                <div class="text-sm text-white">{settingsState.selectedRelease.release_name}</div>
+              </div>
+              
+              <div>
+                <div class="text-[10px] text-white/40 uppercase tracking-wider mb-1">Release Date</div>
+                <div class="text-sm text-white">{settingsState.formatDate(settingsState.selectedRelease.release_date)}</div>
+              </div>
+              
+              <div>
+                <div class="text-[10px] text-white/40 uppercase tracking-wider mb-1">Size</div>
+                <div class="text-sm text-white">{settingsState.formatBytes(settingsState.selectedRelease.file_size)}</div>
+              </div>
+              
+              <div>
+                <div class="text-[10px] text-white/40 uppercase tracking-wider mb-1">Type</div>
+                <div class="flex items-center gap-2">
+                  <span class="text-sm text-white uppercase">{settingsState.selectedRelease.image_type}</span>
+                  {#if settingsState.selectedRelease.is_lts}
+                    <span class="px-1.5 py-0.5 bg-emerald-500/20 text-emerald-400 text-[9px] font-bold rounded">LTS</span>
+                  {/if}
+                </div>
+              </div>
+              
+              <div>
+                <div class="text-[10px] text-white/40 uppercase tracking-wider mb-1">Architecture</div>
+                <div class="text-sm text-white">{settingsState.selectedRelease.architecture}</div>
+              </div>
+              
+              {#if !settingsState.selectedRelease.is_available}
+                <div class="mt-4 p-3 bg-red-500/10 border border-red-500/20 rounded-lg">
+                  <div class="text-xs text-red-400">Not available for your platform</div>
+                </div>
+              {/if}
+            </div>
+          {:else}
+            <div class="flex-1 flex items-center justify-center text-white/30 text-sm p-4 text-center">
+              Select a Java version to view details
+            </div>
+          {/if}
+        </div>
+      </div>
+
+      <!-- Download Progress (MC Style) -->
+      {#if settingsState.isDownloadingJava && settingsState.downloadProgress}
+        <div class="border-t border-white/10 p-4 bg-zinc-900/90">
+          <div class="flex items-center justify-between mb-2">
+            <h3 class="text-white font-bold text-sm">Downloading Java</h3>
+            <span class="text-xs text-zinc-400">{settingsState.downloadProgress.status}</span>
+          </div>
+          
+          <!-- Progress Bar -->
+          <div class="mb-2">
+            <div class="flex justify-between text-[10px] text-zinc-400 mb-1">
+              <span>{settingsState.downloadProgress.file_name}</span>
+              <span>{Math.round(settingsState.downloadProgress.percentage)}%</span>
+            </div>
+            <div class="w-full bg-zinc-800 rounded-full h-2.5 overflow-hidden">
+              <div 
+                class="bg-gradient-to-r from-blue-500 to-cyan-400 h-2.5 rounded-full transition-all duration-200"
+                style="width: {settingsState.downloadProgress.percentage}%"
+              ></div>
+            </div>
+          </div>
+          
+          <!-- Speed & Stats -->
+          <div class="flex justify-between text-[10px] text-zinc-500 font-mono">
+            <span>
+              {settingsState.formatBytes(settingsState.downloadProgress.speed_bytes_per_sec)}/s · 
+              ETA: {settingsState.formatTime(settingsState.downloadProgress.eta_seconds)}
+            </span>
+            <span>
+              {settingsState.formatBytes(settingsState.downloadProgress.downloaded_bytes)} / 
+              {settingsState.formatBytes(settingsState.downloadProgress.total_bytes)}
+            </span>
+          </div>
+        </div>
+      {/if}
+
+      <!-- Pending Downloads Alert -->
+      {#if settingsState.pendingDownloads.length > 0 && !settingsState.isDownloadingJava}
+        <div class="border-t border-amber-500/30 p-4 bg-amber-500/10">
+          <div class="flex items-center justify-between">
+            <div class="flex items-center gap-3">
+              <svg class="w-5 h-5 text-amber-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"/>
+              </svg>
+              <span class="text-sm text-amber-200">
+                {settingsState.pendingDownloads.length} pending download(s) can be resumed
+              </span>
+            </div>
+            <button
+              onclick={() => settingsState.resumeDownloads()}
+              class="px-4 py-2 bg-amber-500/20 hover:bg-amber-500/30 text-amber-200 rounded-lg text-sm font-medium transition-colors"
+            >
+              Resume All
+            </button>
+          </div>
+        </div>
+      {/if}
+
+      <!-- Footer Actions -->
+      <div class="flex items-center justify-between p-4 border-t border-white/10 bg-black/20">
+        <button
+          onclick={() => settingsState.refreshCatalog()}
+          disabled={settingsState.isLoadingCatalog || settingsState.isDownloadingJava}
+          class="flex items-center gap-2 px-4 py-2 bg-white/5 hover:bg-white/10 disabled:opacity-50 text-white/70 rounded-lg text-sm transition-colors"
+        >
+          <svg class="w-4 h-4 {settingsState.isLoadingCatalog ? 'animate-spin' : ''}" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"/>
+          </svg>
+          Refresh
+        </button>
+
+        <div class="flex gap-3">
+          {#if settingsState.isDownloadingJava}
+            <button
+              onclick={() => settingsState.cancelDownload()}
+              class="px-5 py-2.5 bg-red-500/20 hover:bg-red-500/30 text-red-400 rounded-lg text-sm font-medium transition-colors"
+            >
+              Cancel Download
+            </button>
+          {:else}
+            {@const isInstalled = settingsState.selectedRelease ? settingsState.getInstallStatus(settingsState.selectedRelease) === 'installed' : false}
+            <button
+              onclick={() => settingsState.closeJavaDownloadModal()}
+              class="px-5 py-2.5 bg-white/10 hover:bg-white/20 text-white rounded-lg text-sm font-medium transition-colors"
+            >
+              Close
+            </button>
+            <button
+              onclick={() => settingsState.downloadJava()}
+              disabled={!settingsState.selectedRelease?.is_available || settingsState.isLoadingCatalog || isInstalled}
+              class="px-5 py-2.5 bg-indigo-600 hover:bg-indigo-500 disabled:opacity-50 disabled:cursor-not-allowed text-white rounded-lg text-sm font-medium transition-colors"
+            >
+              {isInstalled ? 'Already Installed' : 'Download & Install'}
+            </button>
+          {/if}
+        </div>
+      </div>
+    </div>
+  </div>
+{/if}
diff --git a/packages/ui/src/components/Sidebar.svelte b/packages/ui/src/components/Sidebar.svelte
new file mode 100644
index 0000000..83f4ac6
--- /dev/null
+++ b/packages/ui/src/components/Sidebar.svelte
@@ -0,0 +1,91 @@
+<script lang="ts">
+  import { uiState } from '../stores/ui.svelte';
+  import { Home, Package, Settings, Bot, Folder } from 'lucide-svelte';
+</script>
+
+<aside
+  class="w-20 lg:w-64 dark:bg-[#09090b] bg-white border-r dark:border-white/10 border-gray-200 flex flex-col items-center lg:items-start transition-all duration-300 shrink-0 py-6 z-20"
+>
+  <!-- Logo Area -->
+  <div
+    class="h-16 w-full flex items-center justify-center lg:justify-start lg:px-6 mb-6"
+  >
+    <!-- Icon Logo (Small) -->
+    <div class="lg:hidden text-black dark:text-white">
+      <svg width="32" height="32" viewBox="0 0 100 100" fill="none" xmlns="http://www.w3.org/2000/svg">
+        <path d="M25 25 L50 50" stroke="currentColor" stroke-width="4" stroke-linecap="round" />
+        <path d="M25 75 L50 50" stroke="currentColor" stroke-width="4" stroke-linecap="round" />
+        <path d="M50 50 L75 50" stroke="currentColor" stroke-width="4" stroke-linecap="round" />
+        <circle cx="25" cy="25" r="8" fill="currentColor" stroke="none" />
+        <circle cx="25" cy="50" r="8" fill="currentColor" stroke="none" />
+        <circle cx="25" cy="75" r="8" fill="currentColor" stroke="none" />
+        <circle cx="50" cy="50" r="10" fill="currentColor" stroke="none" />
+        <circle cx="75" cy="50" r="8" fill="currentColor" stroke="none" />
+      </svg>
+    </div>
+    <!-- Full Logo (Large) -->
+    <div
+      class="hidden lg:flex items-center gap-3 font-bold text-xl tracking-tighter dark:text-white text-black"
+    >
+      <!-- Neural Network Dropout Logo -->
+      <svg width="42" height="42" viewBox="0 0 100 100" fill="none" xmlns="http://www.w3.org/2000/svg" class="shrink-0">
+        <!-- Lines -->
+        <path d="M25 25 L50 50" stroke="currentColor" stroke-width="4" stroke-linecap="round" />
+        <path d="M25 75 L50 50" stroke="currentColor" stroke-width="4" stroke-linecap="round" />
+        <path d="M50 50 L75 50" stroke="currentColor" stroke-width="4" stroke-linecap="round" />
+        
+        <!-- Input Layer (Left) -->
+        <circle cx="25" cy="25" r="8" fill="currentColor" stroke="none" />
+        <circle cx="25" cy="50" r="8" fill="currentColor" stroke="none" />
+        <circle cx="25" cy="75" r="8" fill="currentColor" stroke="none" />
+
+        <!-- Hidden Layer (Middle) - Dropout visualization -->
+        <!-- Dropped units (dashed) -->
+        <circle cx="50" cy="25" r="7" stroke="currentColor" stroke-width="2" stroke-dasharray="4 2" fill="none" class="opacity-30" />
+        <circle cx="50" cy="75" r="7" stroke="currentColor" stroke-width="2" stroke-dasharray="4 2" fill="none" class="opacity-30" />
+        <!-- Active unit -->
+        <circle cx="50" cy="50" r="10" fill="currentColor" stroke="none" />
+
+        <!-- Output Layer (Right) -->
+        <circle cx="75" cy="50" r="8" fill="currentColor" stroke="none" />
+      </svg>
+      
+      <span>DROPOUT</span>
+    </div>
+  </div>
+
+  <!-- Navigation -->
+  <nav class="flex-1 w-full flex flex-col gap-1 px-3">
+    <!-- Nav Item Helper -->
+    {#snippet navItem(view: any, Icon: any, label: string)}
+      <button
+        class="group flex items-center lg:gap-3 justify-center lg:justify-start w-full px-0 lg:px-4 py-2.5 rounded-sm transition-all duration-200 relative
+        {uiState.currentView === view
+          ? 'bg-black/5 dark:bg-white/10 dark:text-white text-black font-medium'
+          : 'dark:text-zinc-400 text-zinc-500 hover:text-black dark:hover:text-white hover:bg-black/5 dark:hover:bg-white/5'}"
+        onclick={() => uiState.setView(view)}
+      >
+        <Icon size={20} strokeWidth={uiState.currentView === view ? 2.5 : 2} />
+        <span class="hidden lg:block text-sm relative z-10">{label}</span>
+        
+        <!-- Active Indicator -->
+        {#if uiState.currentView === view}
+           <div class="absolute left-0 top-1/2 -translate-y-1/2 w-0.5 h-4 bg-black dark:bg-white rounded-r-full hidden lg:block"></div>
+        {/if}
+      </button>
+    {/snippet}
+
+    {@render navItem('home', Home, 'Overview')}
+    {@render navItem('instances', Folder, 'Instances')}
+    {@render navItem('versions', Package, 'Versions')}
+    {@render navItem('guide', Bot, 'Assistant')}
+    {@render navItem('settings', Settings, 'Settings')}
+  </nav>
+
+  <!-- Footer Info -->
+  <div
+    class="p-4 w-full flex justify-center lg:justify-start lg:px-6 opacity-40 hover:opacity-100 transition-opacity"
+  >
+    <div class="text-[10px] font-mono text-zinc-500 uppercase tracking-wider">v{uiState.appVersion}</div>
+  </div>
+</aside>
diff --git a/packages/ui/src/components/StatusToast.svelte b/packages/ui/src/components/StatusToast.svelte
new file mode 100644
index 0000000..4c981c7
--- /dev/null
+++ b/packages/ui/src/components/StatusToast.svelte
@@ -0,0 +1,42 @@
+<script lang="ts">
+  import { uiState } from "../stores/ui.svelte";
+</script>
+
+{#if uiState.status !== "Ready"}
+  {#key uiState.status}
+    <div
+      class="absolute top-12 right-12 bg-white/90 dark:bg-zinc-800/90 backdrop-blur border border-zinc-200 dark:border-zinc-600 p-4 rounded-lg shadow-2xl max-w-sm animate-in fade-in slide-in-from-top-4 duration-300 z-50 group"
+    >
+      <div class="flex justify-between items-start mb-1">
+        <div class="text-xs text-zinc-500 dark:text-zinc-400 uppercase font-bold">Status</div>
+        <button
+          onclick={() => uiState.setStatus("Ready")}
+          class="text-zinc-400 hover:text-black dark:text-zinc-500 dark:hover:text-white transition -mt-1 -mr-1 p-1"
+        >
+          ✕
+        </button>
+      </div>
+      <div class="font-mono text-sm whitespace-pre-wrap mb-2 text-gray-900 dark:text-gray-100">{uiState.status}</div>
+      <div class="w-full bg-gray-200 dark:bg-zinc-700/50 h-1 rounded-full overflow-hidden">
+        <div
+          class="h-full bg-indigo-500 origin-left w-full progress-bar"
+        ></div>
+      </div>
+    </div>
+  {/key}
+{/if}
+
+<style>
+  .progress-bar {
+    animation: progress 5s linear forwards;
+  }
+  
+  @keyframes progress {
+    from {
+      transform: scaleX(1);
+    }
+    to {
+      transform: scaleX(0);
+    }
+  }
+</style>
diff --git a/packages/ui/src/components/VersionsView.svelte b/packages/ui/src/components/VersionsView.svelte
new file mode 100644
index 0000000..f1474d9
--- /dev/null
+++ b/packages/ui/src/components/VersionsView.svelte
@@ -0,0 +1,511 @@
+<script lang="ts">
+  import { invoke } from "@tauri-apps/api/core";
+  import { listen, type UnlistenFn } from "@tauri-apps/api/event";
+  import { gameState } from "../stores/game.svelte";
+  import { instancesState } from "../stores/instances.svelte";
+  import ModLoaderSelector from "./ModLoaderSelector.svelte";
+
+  let searchQuery = $state("");
+  let normalizedQuery = $derived(
+    searchQuery.trim().toLowerCase().replace(/。/g, ".")
+  );
+
+  // Filter by version type
+  let typeFilter = $state<"all" | "release" | "snapshot" | "installed">("all");
+
+  // Installed modded versions with Java version info (Fabric + Forge)
+  let installedFabricVersions = $state<Array<{ id: string; javaVersion?: number }>>([]);
+  let isLoadingModded = $state(false);
+
+  // Load installed modded versions with Java version info (both Fabric and Forge)
+  async function loadInstalledModdedVersions() {
+    if (!instancesState.activeInstanceId) {
+      installedFabricVersions = [];
+      isLoadingModded = false;
+      return;
+    }
+    isLoadingModded = true;
+    try {
+      // Get all installed versions and filter for modded ones (Fabric and Forge)
+      const allInstalled = await invoke<Array<{ id: string; type: string }>>(
+        "list_installed_versions",
+        { instanceId: instancesState.activeInstanceId }
+      );
+      
+      // Filter for Fabric and Forge versions
+      const moddedIds = allInstalled
+        .filter(v => v.type === "fabric" || v.type === "forge")
+        .map(v => v.id);
+      
+      // Load Java version for each installed modded version
+      const versionsWithJava = await Promise.all(
+        moddedIds.map(async (id) => {
+          try {
+            const javaVersion = await invoke<number | null>(
+              "get_version_java_version",
+              {
+                instanceId: instancesState.activeInstanceId!,
+                versionId: id,
+              }
+            );
+            return {
+              id,
+              javaVersion: javaVersion ?? undefined,
+            };
+          } catch (e) {
+            console.error(`Failed to get Java version for ${id}:`, e);
+            return { id, javaVersion: undefined };
+          }
+        })
+      );
+      
+      installedFabricVersions = versionsWithJava;
+    } catch (e) {
+      console.error("Failed to load installed modded versions:", e);
+    } finally {
+      isLoadingModded = false;
+    }
+  }
+
+  let versionDeletedUnlisten: UnlistenFn | null = null;
+  let downloadCompleteUnlisten: UnlistenFn | null = null;
+  let versionInstalledUnlisten: UnlistenFn | null = null;
+  let fabricInstalledUnlisten: UnlistenFn | null = null;
+  let forgeInstalledUnlisten: UnlistenFn | null = null;
+
+  // Load on mount and setup event listeners
+  $effect(() => {
+    loadInstalledModdedVersions();
+    setupEventListeners();
+    return () => {
+      if (versionDeletedUnlisten) {
+        versionDeletedUnlisten();
+      }
+      if (downloadCompleteUnlisten) {
+        downloadCompleteUnlisten();
+      }
+      if (versionInstalledUnlisten) {
+        versionInstalledUnlisten();
+      }
+      if (fabricInstalledUnlisten) {
+        fabricInstalledUnlisten();
+      }
+      if (forgeInstalledUnlisten) {
+        forgeInstalledUnlisten();
+      }
+    };
+  });
+
+  async function setupEventListeners() {
+    // Refresh versions when a version is deleted
+    versionDeletedUnlisten = await listen("version-deleted", async () => {
+      await gameState.loadVersions();
+      await loadInstalledModdedVersions();
+    });
+    
+    // Refresh versions when a download completes (version installed)
+    downloadCompleteUnlisten = await listen("download-complete", async () => {
+      await gameState.loadVersions();
+      await loadInstalledModdedVersions();
+    });
+    
+    // Refresh when a version is installed
+    versionInstalledUnlisten = await listen("version-installed", async () => {
+      await gameState.loadVersions();
+      await loadInstalledModdedVersions();
+    });
+    
+    // Refresh when Fabric is installed
+    fabricInstalledUnlisten = await listen("fabric-installed", async () => {
+      await gameState.loadVersions();
+      await loadInstalledModdedVersions();
+    });
+    
+    // Refresh when Forge is installed
+    forgeInstalledUnlisten = await listen("forge-installed", async () => {
+      await gameState.loadVersions();
+      await loadInstalledModdedVersions();
+    });
+  }
+
+  // Combined versions list (vanilla + modded)
+  let allVersions = $derived(() => {
+    const moddedVersions = installedFabricVersions.map((v) => {
+      // Determine type based on version ID
+      const versionType = v.id.startsWith("fabric-loader-") ? "fabric" : 
+                         v.id.includes("-forge-") ? "forge" : "fabric";
+      return {
+        id: v.id,
+        type: versionType,
+        url: "",
+        time: "",
+        releaseTime: new Date().toISOString(),
+        javaVersion: v.javaVersion,
+        isInstalled: true, // Modded versions in the list are always installed
+      };
+    });
+    return [...moddedVersions, ...gameState.versions];
+  });
+
+  let filteredVersions = $derived(() => {
+    let versions = allVersions();
+
+    // Apply type filter
+    if (typeFilter === "release") {
+      versions = versions.filter((v) => v.type === "release");
+    } else if (typeFilter === "snapshot") {
+      versions = versions.filter((v) => v.type === "snapshot");
+    } else if (typeFilter === "installed") {
+      versions = versions.filter((v) => v.isInstalled === true);
+    }
+
+    // Apply search filter
+    if (normalizedQuery.length > 0) {
+      versions = versions.filter((v) =>
+        v.id.toLowerCase().includes(normalizedQuery)
+      );
+    }
+
+    return versions;
+  });
+
+  function getVersionBadge(type: string) {
+    switch (type) {
+      case "release":
+        return { text: "Release", class: "bg-emerald-100 text-emerald-700 border-emerald-200 dark:bg-emerald-500/20 dark:text-emerald-300 dark:border-emerald-500/30" };
+      case "snapshot":
+        return { text: "Snapshot", class: "bg-amber-100 text-amber-700 border-amber-200 dark:bg-amber-500/20 dark:text-amber-300 dark:border-amber-500/30" };
+      case "fabric":
+        return { text: "Fabric", class: "bg-indigo-100 text-indigo-700 border-indigo-200 dark:bg-indigo-500/20 dark:text-indigo-300 dark:border-indigo-500/30" };
+      case "forge":
+        return { text: "Forge", class: "bg-orange-100 text-orange-700 border-orange-200 dark:bg-orange-500/20 dark:text-orange-300 dark:border-orange-500/30" };
+      case "modpack":
+        return { text: "Modpack", class: "bg-purple-100 text-purple-700 border-purple-200 dark:bg-purple-500/20 dark:text-purple-300 dark:border-purple-500/30" };
+      default:
+        return { text: type, class: "bg-zinc-100 text-zinc-700 border-zinc-200 dark:bg-zinc-500/20 dark:text-zinc-300 dark:border-zinc-500/30" };
+    }
+  }
+
+  function handleModLoaderInstall(versionId: string) {
+    // Refresh the installed versions list
+    loadInstalledModdedVersions();
+    // Refresh vanilla versions to update isInstalled status
+    gameState.loadVersions();
+    // Select the newly installed version
+    gameState.selectedVersion = versionId;
+  }
+
+  // Delete confirmation dialog state
+  let showDeleteDialog = $state(false);
+  let versionToDelete = $state<string | null>(null);
+
+  // Show delete confirmation dialog
+  function showDeleteConfirmation(versionId: string, event: MouseEvent) {
+    event.stopPropagation(); // Prevent version selection
+    versionToDelete = versionId;
+    showDeleteDialog = true;
+  }
+
+  // Cancel delete
+  function cancelDelete() {
+    showDeleteDialog = false;
+    versionToDelete = null;
+  }
+
+  // Confirm and delete version
+  async function confirmDelete() {
+    if (!versionToDelete) return;
+
+    try {
+      await invoke("delete_version", { 
+        instanceId: instancesState.activeInstanceId,
+        versionId: versionToDelete 
+      });
+      // Clear selection if deleted version was selected
+      if (gameState.selectedVersion === versionToDelete) {
+        gameState.selectedVersion = "";
+      }
+      // Close dialog
+      showDeleteDialog = false;
+      versionToDelete = null;
+      // Versions will be refreshed automatically via event listener
+    } catch (e) {
+      console.error("Failed to delete version:", e);
+      alert(`Failed to delete version: ${e}`);
+      // Keep dialog open on error so user can retry
+    }
+  }
+
+  // Version metadata for the selected version
+  interface VersionMetadata {
+    id: string;
+    javaVersion?: number;
+    isInstalled: boolean;
+  }
+
+  let selectedVersionMetadata = $state<VersionMetadata | null>(null);
+  let isLoadingMetadata = $state(false);
+
+  // Load metadata when version is selected
+  async function loadVersionMetadata(versionId: string) {
+    if (!versionId) {
+      selectedVersionMetadata = null;
+      return;
+    }
+
+    isLoadingMetadata = true;
+    try {
+      const metadata = await invoke<VersionMetadata>("get_version_metadata", {
+        instanceId: instancesState.activeInstanceId,
+        versionId,
+      });
+      selectedVersionMetadata = metadata;
+    } catch (e) {
+      console.error("Failed to load version metadata:", e);
+      selectedVersionMetadata = null;
+    } finally {
+      isLoadingMetadata = false;
+    }
+  }
+
+  // Watch for selected version changes
+  $effect(() => {
+    if (gameState.selectedVersion) {
+      loadVersionMetadata(gameState.selectedVersion);
+    } else {
+      selectedVersionMetadata = null;
+    }
+  });
+
+  // Get the base Minecraft version from selected version (for mod loader selector)
+  let selectedBaseVersion = $derived(() => {
+    const selected = gameState.selectedVersion;
+    if (!selected) return "";
+
+    // If it's a modded version, extract the base version
+    if (selected.startsWith("fabric-loader-")) {
+      // Format: fabric-loader-X.X.X-1.20.4
+      const parts = selected.split("-");
+      return parts[parts.length - 1];
+    }
+    if (selected.includes("-forge-")) {
+      // Format: 1.20.4-forge-49.0.38
+      return selected.split("-forge-")[0];
+    }
+
+    // Check if it's a valid vanilla version
+    const version = gameState.versions.find((v) => v.id === selected);
+    return version ? selected : "";
+  });
+</script>
+
+<div class="h-full flex flex-col p-6 overflow-hidden">
+  <div class="flex items-center justify-between mb-6">
+     <h2 class="text-3xl font-black bg-clip-text text-transparent bg-gradient-to-r from-gray-900 to-gray-600 dark:from-white dark:to-white/60">Version Manager</h2>
+     <div class="text-sm dark:text-white/40 text-black/50">Select a version to play or modify</div>
+  </div>
+
+  <div class="flex-1 grid grid-cols-1 lg:grid-cols-3 gap-6 overflow-hidden">
+    <!-- Left: Version List -->
+    <div class="lg:col-span-2 flex flex-col gap-4 overflow-hidden">
+      <!-- Search and Filters (Glass Bar) -->
+      <div class="flex gap-3">
+        <div class="relative flex-1">
+            <span class="absolute left-3 top-1/2 -translate-y-1/2 dark:text-white/30 text-black/30">🔍</span>
+            <input
+              type="text"
+              placeholder="Search versions..."
+              class="w-full pl-9 pr-4 py-3 bg-white/60 dark:bg-black/20 border border-black/10 dark:border-white/10 rounded-xl dark:text-white text-gray-900 placeholder-black/30 dark:placeholder-white/30 focus:outline-none focus:border-indigo-500/50 dark:focus:bg-black/40 focus:bg-white/80 transition-all backdrop-blur-sm"
+              bind:value={searchQuery}
+            />
+        </div>
+      </div>
+
+      <!-- Type Filter Tabs (Glass Caps) -->
+      <div class="flex p-1 bg-white/60 dark:bg-black/20 rounded-xl border border-black/5 dark:border-white/5">
+        {#each ['all', 'release', 'snapshot', 'installed'] as filter}
+            <button
+            class="flex-1 px-3 py-2 rounded-lg text-sm font-medium transition-all duration-200 capitalize
+            {typeFilter === filter
+                ? 'bg-white shadow-sm border border-black/5 dark:bg-white/10 dark:text-white dark:shadow-lg dark:border-white/10 text-black'
+                : 'text-black/40 dark:text-white/40 hover:text-black dark:hover:text-white hover:bg-black/5 dark:hover:bg-white/5'}"
+            onclick={() => (typeFilter = filter as any)}
+            >
+            {filter}
+            </button>
+        {/each}
+      </div>
+
+      <!-- Version List SCROLL -->
+      <div class="flex-1 overflow-y-auto pr-2 space-y-2 custom-scrollbar">
+        {#if gameState.versions.length === 0}
+          <div class="flex items-center justify-center h-40 dark:text-white/30 text-black/30 italic animate-pulse">
+             Fetching manifest...
+          </div>
+        {:else if filteredVersions().length === 0}
+          <div class="flex flex-col items-center justify-center h-40 dark:text-white/30 text-black/30 gap-2">
+             <span class="text-2xl">👻</span>
+             <span>No matching versions found</span>
+          </div>
+        {:else}
+          {#each filteredVersions() as version}
+            {@const badge = getVersionBadge(version.type)}
+            {@const isSelected = gameState.selectedVersion === version.id}
+            <button
+              class="w-full group flex items-center justify-between p-4 rounded-xl text-left border transition-all duration-200 relative overflow-hidden
+              {isSelected
+                ? 'bg-indigo-50 border-indigo-200 dark:bg-indigo-600/20 dark:border-indigo-500/50 shadow-[0_0_20px_rgba(99,102,241,0.2)]'
+                : 'bg-white/40 dark:bg-white/5 border-black/5 dark:border-white/5 hover:bg-white/60 dark:hover:bg-white/10 hover:border-black/10 dark:hover:border-white/10 hover:translate-x-1'}"
+              onclick={() => (gameState.selectedVersion = version.id)}
+            >
+              <!-- Selection Glow -->
+              {#if isSelected}
+                 <div class="absolute inset-0 bg-gradient-to-r from-indigo-500/10 to-transparent pointer-events-none"></div>
+              {/if}
+
+              <div class="relative z-10 flex items-center gap-4 flex-1">
+                <span
+                  class="px-2.5 py-0.5 rounded-full text-[10px] font-bold uppercase tracking-wide border {badge.class}"
+                >
+                  {badge.text}
+                </span>
+                <div class="flex-1">
+                  <div class="font-bold font-mono text-lg tracking-tight {isSelected ? 'text-black dark:text-white' : 'text-gray-700 dark:text-zinc-300 group-hover:text-black dark:group-hover:text-white'}">
+                    {version.id}
+                  </div>
+                  <div class="flex items-center gap-2 mt-0.5">
+                    {#if version.releaseTime && version.type !== "fabric" && version.type !== "forge"}
+                      <div class="text-xs dark:text-white/30 text-black/30">
+                        {new Date(version.releaseTime).toLocaleDateString()}
+                      </div>
+                    {/if}
+                    {#if version.javaVersion}
+                      <div class="flex items-center gap-1 text-xs dark:text-white/40 text-black/40">
+                        <span class="opacity-60">☕</span>
+                        <span class="font-medium">Java {version.javaVersion}</span>
+                      </div>
+                    {/if}
+                  </div>
+                </div>
+              </div>
+              
+              <div class="relative z-10 flex items-center gap-2">
+                {#if version.isInstalled === true}
+                  <button
+                    onclick={(e) => showDeleteConfirmation(version.id, e)}
+                    class="p-2 rounded-lg text-red-500 dark:text-red-400 hover:bg-red-500/10 dark:hover:bg-red-500/20 transition-colors opacity-0 group-hover:opacity-100"
+                    title="Delete version"
+                  >
+                    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                      <path d="M3 6h18"></path>
+                      <path d="M19 6v14c0 1-1 2-2 2H7c-1 0-2-1-2-2V6"></path>
+                      <path d="M8 6V4c0-1 1-2 2-2h4c1 0 2 1 2 2v2"></path>
+                    </svg>
+                  </button>
+                {/if}
+                {#if isSelected}
+                  <div class="text-indigo-500 dark:text-indigo-400">
+                     <span class="text-lg">Selected</span>
+                  </div>
+                {/if}
+              </div>
+            </button>
+          {/each}
+        {/if}
+      </div>
+    </div>
+
+    <!-- Right: Mod Loader Panel -->
+    <div class="flex flex-col gap-4">
+      <!-- Selected Version Info Card -->
+      <div class="bg-gradient-to-br from-white/40 to-white/20 dark:from-white/10 dark:to-white/5 p-6 rounded-2xl border border-black/5 dark:border-white/10 backdrop-blur-md relative overflow-hidden group">
+          <div class="absolute top-0 right-0 p-8 bg-indigo-500/20 blur-[60px] rounded-full group-hover:bg-indigo-500/30 transition-colors"></div>
+          
+          <h3 class="text-xs font-bold uppercase tracking-widest dark:text-white/40 text-black/40 mb-2 relative z-10">Current Selection</h3>
+          {#if gameState.selectedVersion}
+            <p class="font-mono text-3xl font-black text-transparent bg-clip-text bg-gradient-to-r from-gray-900 to-gray-600 dark:from-white dark:to-white/70 relative z-10 truncate mb-4">
+                {gameState.selectedVersion}
+            </p>
+
+            <!-- Version Metadata -->
+            {#if isLoadingMetadata}
+              <div class="space-y-3 relative z-10">
+                <div class="animate-pulse space-y-2">
+                  <div class="h-4 bg-black/10 dark:bg-white/10 rounded w-3/4"></div>
+                  <div class="h-4 bg-black/10 dark:bg-white/10 rounded w-1/2"></div>
+                </div>
+              </div>
+            {:else if selectedVersionMetadata}
+              <div class="space-y-3 relative z-10">
+                <!-- Java Version -->
+                {#if selectedVersionMetadata.javaVersion}
+                  <div>
+                    <div class="text-[10px] font-bold uppercase tracking-wider dark:text-white/40 text-black/40 mb-1">Java Version</div>
+                    <div class="flex items-center gap-2">
+                      <span class="text-lg opacity-60">☕</span>
+                      <span class="text-sm dark:text-white text-black font-medium">
+                        Java {selectedVersionMetadata.javaVersion}
+                      </span>
+                    </div>
+                  </div>
+                {/if}
+
+                <!-- Installation Status -->
+                <div>
+                  <div class="text-[10px] font-bold uppercase tracking-wider dark:text-white/40 text-black/40 mb-1">Status</div>
+                  <div class="flex items-center gap-2">
+                    {#if selectedVersionMetadata.isInstalled === true}
+                      <span class="px-2 py-0.5 bg-emerald-500/20 text-emerald-600 dark:text-emerald-400 text-[10px] font-bold rounded border border-emerald-500/30">
+                        Installed
+                      </span>
+                    {:else if selectedVersionMetadata.isInstalled === false}
+                      <span class="px-2 py-0.5 bg-zinc-500/20 text-zinc-600 dark:text-zinc-400 text-[10px] font-bold rounded border border-zinc-500/30">
+                        Not Installed
+                      </span>
+                    {/if}
+                  </div>
+                </div>
+              </div>
+            {/if}
+          {:else}
+            <p class="dark:text-white/20 text-black/20 italic relative z-10">None selected</p>
+          {/if}
+      </div>
+
+      <!-- Mod Loader Selector Card -->
+      <div class="bg-white/60 dark:bg-black/20 p-4 rounded-2xl border border-black/5 dark:border-white/5 backdrop-blur-sm flex-1 flex flex-col">
+          <ModLoaderSelector
+            selectedGameVersion={selectedBaseVersion()}
+            onInstall={handleModLoaderInstall}
+          />
+      </div>
+
+    </div>
+  </div>
+
+  <!-- Delete Version Confirmation Dialog -->
+  {#if showDeleteDialog && versionToDelete}
+    <div class="fixed inset-0 z-[200] bg-black/70 dark:bg-black/80 backdrop-blur-sm flex items-center justify-center p-4">
+      <div class="bg-white dark:bg-zinc-900 border border-zinc-200 dark:border-zinc-700 rounded-xl shadow-2xl p-6 max-w-sm w-full animate-in fade-in zoom-in-95 duration-200">
+        <h3 class="text-lg font-bold text-gray-900 dark:text-white mb-2">Delete Version</h3>
+        <p class="text-zinc-600 dark:text-zinc-400 text-sm mb-6">
+          Are you sure you want to delete version <span class="text-gray-900 dark:text-white font-mono font-medium">{versionToDelete}</span>? This action cannot be undone.
+        </p>
+        <div class="flex gap-3 justify-end">
+          <button
+            onclick={cancelDelete}
+            class="px-4 py-2 text-sm font-medium text-zinc-600 dark:text-zinc-300 hover:text-zinc-900 dark:hover:text-white bg-zinc-100 dark:bg-zinc-800 hover:bg-zinc-200 dark:hover:bg-zinc-700 rounded-lg transition-colors"
+          >
+            Cancel
+          </button>
+          <button
+            onclick={confirmDelete}
+            class="px-4 py-2 text-sm font-medium text-white bg-red-600 hover:bg-red-500 rounded-lg transition-colors"
+          >
+            Delete
+          </button>
+        </div>
+      </div>
+    </div>
+  {/if}
+</div>
diff --git a/packages/ui/src/lib/Counter.svelte b/packages/ui/src/lib/Counter.svelte
new file mode 100644
index 0000000..37d75ce
--- /dev/null
+++ b/packages/ui/src/lib/Counter.svelte
@@ -0,0 +1,10 @@
+<script lang="ts">
+  let count: number = $state(0)
+  const increment = () => {
+    count += 1
+  }
+</script>
+
+<button onclick={increment}>
+  count is {count}
+</button>
diff --git a/packages/ui/src/lib/DownloadMonitor.svelte b/packages/ui/src/lib/DownloadMonitor.svelte
new file mode 100644
index 0000000..860952c
--- /dev/null
+++ b/packages/ui/src/lib/DownloadMonitor.svelte
@@ -0,0 +1,201 @@
+<script lang="ts">
+  import { listen } from "@tauri-apps/api/event";
+  import { onMount, onDestroy } from "svelte";
+
+  export let visible = false;
+
+  interface DownloadEvent {
+    file: string;
+    downloaded: number; // in bytes
+    total: number; // in bytes
+    status: string;
+    completed_files: number;
+    total_files: number;
+    total_downloaded_bytes: number;
+  }
+
+  let currentFile = "";
+  let progress = 0; // percentage 0-100 (current file)
+  let totalProgress = 0; // percentage 0-100 (all files)
+  let totalFiles = 0;
+  let completedFiles = 0;
+  let statusText = "Preparing...";
+  let unlistenProgress: () => void;
+  let unlistenStart: () => void;
+  let unlistenComplete: () => void;
+  let downloadedBytes = 0;
+  let totalBytes = 0;
+
+  // Speed and ETA tracking
+  let downloadSpeed = 0; // bytes per second
+  let etaSeconds = 0;
+  let startTime = 0;
+  let totalDownloadedBytes = 0;
+  let lastUpdateTime = 0;
+  let lastTotalBytes = 0;
+
+  onMount(async () => {
+    unlistenStart = await listen<number>("download-start", (event) => {
+      visible = true;
+      totalFiles = event.payload;
+      completedFiles = 0;
+      progress = 0;
+      totalProgress = 0;
+      statusText = "Starting download...";
+      currentFile = "";
+      // Reset speed tracking
+      startTime = Date.now();
+      totalDownloadedBytes = 0;
+      downloadSpeed = 0;
+      etaSeconds = 0;
+      lastUpdateTime = Date.now();
+      lastTotalBytes = 0;
+    });
+
+    unlistenProgress = await listen<DownloadEvent>(
+      "download-progress",
+      (event) => {
+        const payload = event.payload;
+        currentFile = payload.file;
+
+        // Current file progress
+        downloadedBytes = payload.downloaded;
+        totalBytes = payload.total;
+
+        statusText = payload.status;
+
+        if (payload.total > 0) {
+          progress = (payload.downloaded / payload.total) * 100;
+        }
+
+        // Total progress (all files)
+        completedFiles = payload.completed_files;
+        totalFiles = payload.total_files;
+        if (totalFiles > 0) {
+          const currentFileFraction =
+            payload.total > 0 ? payload.downloaded / payload.total : 0;
+          totalProgress = ((completedFiles + currentFileFraction) / totalFiles) * 100;
+        }
+
+        // Calculate download speed (using moving average)
+        totalDownloadedBytes = payload.total_downloaded_bytes;
+        const now = Date.now();
+        const timeDiff = (now - lastUpdateTime) / 1000; // seconds
+        
+        if (timeDiff >= 0.5) { // Update speed every 0.5 seconds
+          const bytesDiff = totalDownloadedBytes - lastTotalBytes;
+          const instantSpeed = bytesDiff / timeDiff;
+          // Smooth the speed with exponential moving average
+          downloadSpeed = downloadSpeed === 0 ? instantSpeed : downloadSpeed * 0.7 + instantSpeed * 0.3;
+          lastUpdateTime = now;
+          lastTotalBytes = totalDownloadedBytes;
+        }
+
+        // Estimate remaining time
+        if (downloadSpeed > 0 && completedFiles < totalFiles) {
+          const remainingFiles = totalFiles - completedFiles;
+          let estimatedRemainingBytes: number;
+
+          if (completedFiles > 0) {
+            // Use average size of completed files to estimate remaining files
+            const avgBytesPerCompletedFile = totalDownloadedBytes / completedFiles;
+            estimatedRemainingBytes = avgBytesPerCompletedFile * remainingFiles;
+          } else {
+            // No completed files yet: estimate based only on current file's remaining bytes
+            estimatedRemainingBytes = Math.max(totalBytes - downloadedBytes, 0);
+          }
+          etaSeconds = estimatedRemainingBytes / downloadSpeed;
+        } else {
+          etaSeconds = 0;
+        }
+      }
+    );
+
+    unlistenComplete = await listen("download-complete", () => {
+      statusText = "Done!";
+      progress = 100;
+      totalProgress = 100;
+      setTimeout(() => {
+        visible = false;
+      }, 2000);
+    });
+  });
+
+  onDestroy(() => {
+    if (unlistenProgress) unlistenProgress();
+    if (unlistenStart) unlistenStart();
+    if (unlistenComplete) unlistenComplete();
+  });
+
+  function formatBytes(bytes: number) {
+    if (bytes === 0) return "0 B";
+    const k = 1024;
+    const sizes = ["B", "KB", "MB", "GB"];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + " " + sizes[i];
+  }
+
+  function formatSpeed(bytesPerSecond: number) {
+    if (bytesPerSecond === 0) return "-- /s";
+    return formatBytes(bytesPerSecond) + "/s";
+  }
+
+  function formatTime(seconds: number) {
+    if (seconds <= 0 || !isFinite(seconds)) return "--";
+    if (seconds < 60) return `${Math.round(seconds)}s`;
+    if (seconds < 3600) {
+      const mins = Math.floor(seconds / 60);
+      const secs = Math.round(seconds % 60);
+      return `${mins}m ${secs}s`;
+    }
+    const hours = Math.floor(seconds / 3600);
+    const mins = Math.floor((seconds % 3600) / 60);
+    return `${hours}h ${mins}m`;
+  }
+</script>
+
+{#if visible}
+  <div
+    class="fixed bottom-28 right-8 z-50 w-80 bg-zinc-900/90  border border-zinc-700 rounded-lg shadow-2xl p-4 animate-in slide-in-from-right-10 fade-in duration-300"
+  >
+    <div class="flex items-center justify-between mb-2">
+      <h3 class="text-white font-bold text-sm">Downloads</h3>
+      <span class="text-xs text-zinc-400">{statusText}</span>
+    </div>
+
+    <!-- Total Progress Bar -->
+    <div class="mb-3">
+      <div class="flex justify-between text-[10px] text-zinc-400 mb-1">
+        <span>Total Progress</span>
+        <span>{completedFiles} / {totalFiles} files</span>
+      </div>
+      <div class="w-full bg-zinc-800 rounded-full h-2.5 overflow-hidden">
+        <div
+          class="bg-gradient-to-r from-blue-500 to-cyan-400 h-2.5 rounded-full transition-all duration-200"
+          style="width: {totalProgress}%"
+        ></div>
+      </div>
+      <div class="flex justify-between text-[10px] text-zinc-500 font-mono mt-0.5">
+        <span>{formatSpeed(downloadSpeed)} · ETA: {formatTime(etaSeconds)}</span>
+        <span>{completedFiles < totalFiles ? Math.floor(totalProgress) : 100}%</span>
+      </div>
+    </div>
+
+    <div class="text-xs text-zinc-300 truncate mb-1" title={currentFile}>
+      {currentFile || "Waiting..."}
+    </div>
+
+    <!-- Current File Progress Bar -->
+    <div class="w-full bg-zinc-800 rounded-full h-2 mb-2 overflow-hidden">
+      <div
+        class="bg-gradient-to-r from-green-500 to-emerald-400 h-2 rounded-full transition-all duration-200"
+        style="width: {progress}%"
+      ></div>
+    </div>
+
+    <div class="flex justify-between text-[10px] text-zinc-500 font-mono">
+      <span>{formatBytes(downloadedBytes)} / {formatBytes(totalBytes)}</span>
+      <span>{Math.round(progress)}%</span>
+    </div>
+  </div>
+{/if}
diff --git a/packages/ui/src/lib/GameConsole.svelte b/packages/ui/src/lib/GameConsole.svelte
new file mode 100644
index 0000000..bc5edbc
--- /dev/null
+++ b/packages/ui/src/lib/GameConsole.svelte
@@ -0,0 +1,304 @@
+<script lang="ts">
+  import { logsState, type LogEntry } from "../stores/logs.svelte";
+  import { uiState } from "../stores/ui.svelte";
+  import { save } from "@tauri-apps/plugin-dialog";
+  import { writeTextFile } from "@tauri-apps/plugin-fs";
+  import { invoke } from "@tauri-apps/api/core";
+  import { open } from "@tauri-apps/plugin-shell";
+  import { onMount, tick } from "svelte";
+  import CustomSelect from "../components/CustomSelect.svelte";
+  import { ChevronDown, Check } from 'lucide-svelte';
+
+  let consoleElement: HTMLDivElement;
+  let autoScroll = $state(true);
+  
+  // Search & Filter
+  let searchQuery = $state("");
+  let showInfo = $state(true);
+  let showWarn = $state(true);
+  let showError = $state(true);
+  let showDebug = $state(false);
+  
+  // Source filter: "all" or specific source name
+  let selectedSource = $state("all");
+
+  // Get sorted sources for dropdown
+  let sourceOptions = $derived([
+    { value: "all", label: "All Sources" },
+    ...[...logsState.sources].sort().map(s => ({ value: s, label: s }))
+  ]);
+
+  // Derived filtered logs
+  let filteredLogs = $derived(logsState.logs.filter((log) => {
+    // Source Filter
+    if (selectedSource !== "all" && log.source !== selectedSource) return false;
+
+    // Level Filter
+    if (!showInfo && log.level === "info") return false;
+    if (!showWarn && log.level === "warn") return false;
+    if (!showError && (log.level === "error" || log.level === "fatal")) return false;
+    if (!showDebug && log.level === "debug") return false;
+
+    // Search Filter
+    if (searchQuery) {
+      const q = searchQuery.toLowerCase();
+      return (
+        log.message.toLowerCase().includes(q) ||
+        log.source.toLowerCase().includes(q)
+      );
+    }
+    return true;
+  }));
+
+  // Auto-scroll logic
+  $effect(() => {
+    // Depend on filteredLogs length to trigger scroll
+    if (filteredLogs.length && autoScroll && consoleElement) {
+        // Use tick to wait for DOM update
+        tick().then(() => {
+            consoleElement.scrollTop = consoleElement.scrollHeight;
+        });
+    }
+  });
+
+  function handleScroll() {
+    if (!consoleElement) return;
+    const { scrollTop, scrollHeight, clientHeight } = consoleElement;
+    // If user scrolls up (more than 50px from bottom), disable auto-scroll
+    if (scrollHeight - scrollTop - clientHeight > 50) {
+      autoScroll = false;
+    } else {
+      autoScroll = true;
+    }
+  }
+
+  // Export only currently filtered logs
+  async function exportLogs() {
+    try {
+      const content = logsState.exportLogs(filteredLogs);
+      const path = await save({
+        filters: [{ name: "Log File", extensions: ["txt", "log"] }],
+        defaultPath: `dropout-logs-${new Date().toISOString().replace(/[:.]/g, "-")}.log`,
+      });
+      
+      if (path) {
+        await writeTextFile(path, content);
+        logsState.addLog("info", "Console", `Exported ${filteredLogs.length} logs to ${path}`);
+      }
+    } catch (e) {
+      console.error("Export failed", e);
+      logsState.addLog("error", "Console", `Export failed: ${e}`);
+    }
+  }
+
+  // Upload only currently filtered logs
+  async function uploadLogs() {
+    try {
+        const content = logsState.exportLogs(filteredLogs);
+        logsState.addLog("info", "Console", `Uploading ${filteredLogs.length} logs...`);
+        
+        const response = await invoke<{ url: string }>("upload_to_pastebin", { content });
+        
+        logsState.addLog("info", "Console", `Logs uploaded successfully: ${response.url}`);
+        await open(response.url);
+    } catch (e) {
+        console.error("Upload failed", e);
+        logsState.addLog("error", "Console", `Upload failed: ${e}`);
+    }
+  }
+
+  function highlightText(text: string, query: string) {
+    if (!query) return text;
+    // Escape regex special chars in query
+    const escaped = query.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+    const parts = text.split(new RegExp(`(${escaped})`, "gi"));
+    return parts.map(part => 
+        part.toLowerCase() === query.toLowerCase() 
+            ? `<span class="bg-yellow-500/30 text-yellow-200 font-bold">${part}</span>` 
+            : part
+    ).join("");
+  }
+
+  function getLevelColor(level: LogEntry["level"]) {
+    switch (level) {
+      case "info": return "text-blue-400";
+      case "warn": return "text-yellow-400";
+      case "error": 
+      case "fatal": return "text-red-400";
+      case "debug": return "text-purple-400";
+      default: return "text-zinc-400";
+    }
+  }
+
+  function getLevelLabel(level: LogEntry["level"]) {
+    switch (level) {
+      case "info": return "INFO";
+      case "warn": return "WARN";
+      case "error": return "ERR";
+      case "fatal": return "FATAL";
+      case "debug": return "DEBUG";
+    }
+  }
+
+  function getMessageColor(log: LogEntry) {
+    if (log.level === "error" || log.level === "fatal") return "text-red-300";
+    if (log.level === "warn") return "text-yellow-200";
+    if (log.level === "debug") return "text-purple-200/70";
+    if (log.source.startsWith("Game")) return "text-emerald-100/80";
+    return "";
+  }
+</script>
+
+<div class="absolute inset-0 flex flex-col bg-[#1e1e1e] text-zinc-300 font-mono text-xs overflow-hidden">
+  <!-- Toolbar -->
+  <div class="flex flex-wrap items-center justify-between p-2 bg-[#252526] border-b border-[#3e3e42] gap-2">
+    <div class="flex items-center gap-3">
+        <h3 class="font-bold text-zinc-100 uppercase tracking-wider px-2">Console</h3>
+        
+        <!-- Source Dropdown -->
+        <CustomSelect
+            options={sourceOptions}
+            bind:value={selectedSource}
+            class="w-36"
+        />
+
+        <!-- Level Filters -->
+        <div class="flex items-center bg-[#1e1e1e] rounded border border-[#3e3e42] overflow-hidden">
+            <button 
+                class="px-2 py-1 hover:bg-[#3e3e42] transition-colors {showInfo ? 'text-blue-400' : 'text-zinc-600'}" 
+                onclick={() => showInfo = !showInfo} 
+                title="Toggle Info"
+            >Info</button>
+            <div class="w-px h-3 bg-[#3e3e42]"></div>
+            <button 
+                class="px-2 py-1 hover:bg-[#3e3e42] transition-colors {showWarn ? 'text-yellow-400' : 'text-zinc-600'}" 
+                onclick={() => showWarn = !showWarn}
+                title="Toggle Warnings"
+            >Warn</button>
+            <div class="w-px h-3 bg-[#3e3e42]"></div>
+            <button 
+                class="px-2 py-1 hover:bg-[#3e3e42] transition-colors {showError ? 'text-red-400' : 'text-zinc-600'}" 
+                onclick={() => showError = !showError}
+                title="Toggle Errors"
+            >Error</button>
+            <div class="w-px h-3 bg-[#3e3e42]"></div>
+            <button 
+                class="px-2 py-1 hover:bg-[#3e3e42] transition-colors {showDebug ? 'text-purple-400' : 'text-zinc-600'}" 
+                onclick={() => showDebug = !showDebug}
+                title="Toggle Debug"
+            >Debug</button>
+        </div>
+
+        <!-- Search -->
+        <div class="relative group">
+            <input 
+                type="text" 
+                bind:value={searchQuery}
+                placeholder="Find..." 
+                class="bg-[#1e1e1e] border border-[#3e3e42] rounded pl-8 pr-2 py-1 focus:border-indigo-500 focus:outline-none w-40 text-zinc-300 placeholder:text-zinc-600 transition-all focus:w-64"
+            />
+            <svg class="w-3.5 h-3.5 text-zinc-500 absolute left-2.5 top-1.5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"/></svg>
+            {#if searchQuery}
+                <button class="absolute right-2 top-1.5 text-zinc-500 hover:text-white" onclick={() => searchQuery = ""}>✕</button>
+            {/if}
+        </div>
+    </div>
+
+    <!-- Actions -->
+    <div class="flex items-center gap-2">
+        <!-- Log count indicator -->
+        <span class="text-zinc-500 text-[10px] px-2">{filteredLogs.length} / {logsState.logs.length}</span>
+        
+        <button 
+            onclick={() => logsState.clear()}
+            class="p-1.5 hover:bg-[#3e3e42] rounded text-zinc-400 hover:text-white transition-colors"
+            title="Clear Logs"
+        >
+            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16"/></svg>
+        </button>
+        <button 
+            onclick={exportLogs}
+            class="p-1.5 hover:bg-[#3e3e42] rounded text-zinc-400 hover:text-white transition-colors"
+            title="Export Filtered Logs"
+        >
+            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4"/></svg>
+        </button>
+        <button 
+            onclick={uploadLogs}
+            class="p-1.5 hover:bg-[#3e3e42] rounded text-zinc-400 hover:text-white transition-colors"
+            title="Upload Filtered Logs"
+        >
+            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 16a4 4 0 01-.88-7.903A5 5 0 1115.9 6L16 6a5 5 0 011 9.9M15 13l-3-3m0 0l-3 3m3-3v12"/></svg>
+        </button>
+        <div class="w-px h-4 bg-[#3e3e42] mx-1"></div>
+        <button 
+            onclick={() => uiState.toggleConsole()}
+            class="p-1.5 hover:bg-red-500/20 hover:text-red-400 rounded text-zinc-400 transition-colors"
+            title="Close"
+        >
+            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"/></svg>
+        </button>
+    </div>
+  </div>
+
+  <!-- Log Area -->
+  <div 
+    bind:this={consoleElement}
+    onscroll={handleScroll}
+    class="flex-1 overflow-y-auto overflow-x-hidden p-2 select-text custom-scrollbar"
+  >
+    {#each filteredLogs as log (log.id)}
+        <div class="flex gap-2 leading-relaxed hover:bg-[#2a2d2e] px-1 rounded-sm group">
+            <!-- Timestamp -->
+            <span class="text-zinc-500 shrink-0 select-none w-20 text-right opacity-50 group-hover:opacity-100">{log.timestamp.split('.')[0]}</span>
+            
+            <!-- Source & Level -->
+            <div class="flex shrink-0 min-w-[140px] gap-1 justify-end font-bold select-none truncate">
+                <span class="text-zinc-500 truncate max-w-[90px]" title={log.source}>{log.source}</span>
+                <span class={getLevelColor(log.level)}>{getLevelLabel(log.level)}</span>
+            </div>
+
+            <!-- Message -->
+            <div class="flex-1 break-all whitespace-pre-wrap text-zinc-300 min-w-0 {getMessageColor(log)}">
+                {@html highlightText(log.message, searchQuery)}
+            </div>
+        </div>
+    {/each}
+    
+    {#if filteredLogs.length === 0}
+        <div class="text-center text-zinc-600 mt-10 italic select-none">
+            {#if logsState.logs.length === 0}
+                Waiting for logs...
+            {:else}
+                No logs match current filters.
+            {/if}
+        </div>
+    {/if}
+  </div>
+  
+  <!-- Auto-scroll status -->
+  {#if !autoScroll}
+    <button 
+        onclick={() => { autoScroll = true; consoleElement.scrollTop = consoleElement.scrollHeight; }}
+        class="absolute bottom-4 right-6 bg-indigo-600 hover:bg-indigo-500 text-white px-3 py-1.5 rounded shadow-lg text-xs font-bold transition-all animate-bounce"
+    >
+        Resume Auto-scroll ⬇
+    </button>
+  {/if}
+</div>
+
+<style>
+    /* Custom Scrollbar for the log area */
+    .custom-scrollbar::-webkit-scrollbar {
+        width: 10px;
+        background-color: #1e1e1e;
+    }
+    .custom-scrollbar::-webkit-scrollbar-thumb {
+        background-color: #424242;
+        border: 2px solid #1e1e1e; /* padding around thumb */
+        border-radius: 0;
+    }
+    .custom-scrollbar::-webkit-scrollbar-thumb:hover {
+        background-color: #4f4f4f;
+    }
+</style>
diff --git a/packages/ui/src/lib/effects/ConstellationEffect.ts b/packages/ui/src/lib/effects/ConstellationEffect.ts
new file mode 100644
index 0000000..d2db529
--- /dev/null
+++ b/packages/ui/src/lib/effects/ConstellationEffect.ts
@@ -0,0 +1,162 @@
+export class ConstellationEffect {
+  private canvas: HTMLCanvasElement;
+  private ctx: CanvasRenderingContext2D;
+  private width: number = 0;
+  private height: number = 0;
+  private particles: Particle[] = [];
+  private animationId: number = 0;
+  private mouseX: number = -1000;
+  private mouseY: number = -1000;
+
+  // Configuration
+  private readonly particleCount = 100;
+  private readonly connectionDistance = 150;
+  private readonly particleSpeed = 0.5;
+
+  constructor(canvas: HTMLCanvasElement) {
+    this.canvas = canvas;
+    this.ctx = canvas.getContext("2d", { alpha: true })!;
+
+    // Bind methods
+    this.animate = this.animate.bind(this);
+    this.handleMouseMove = this.handleMouseMove.bind(this);
+
+    // Initial setup
+    this.resize(window.innerWidth, window.innerHeight);
+    this.initParticles();
+
+    // Mouse interaction
+    window.addEventListener("mousemove", this.handleMouseMove);
+
+    // Start animation
+    this.animate();
+  }
+
+  resize(width: number, height: number) {
+    const dpr = window.devicePixelRatio || 1;
+    this.width = width;
+    this.height = height;
+
+    this.canvas.width = width * dpr;
+    this.canvas.height = height * dpr;
+    this.canvas.style.width = `${width}px`;
+    this.canvas.style.height = `${height}px`;
+
+    this.ctx.scale(dpr, dpr);
+
+    // Re-initialize if screen size changes significantly to maintain density
+    if (this.particles.length === 0) {
+      this.initParticles();
+    }
+  }
+
+  private initParticles() {
+    this.particles = [];
+    // Adjust density based on screen area
+    const area = this.width * this.height;
+    const density = Math.floor(area / 15000); // 1 particle per 15000px²
+    const count = Math.min(Math.max(density, 50), 200); // Clamp between 50 and 200
+
+    for (let i = 0; i < count; i++) {
+      this.particles.push(new Particle(this.width, this.height, this.particleSpeed));
+    }
+  }
+
+  private handleMouseMove(e: MouseEvent) {
+    const rect = this.canvas.getBoundingClientRect();
+    this.mouseX = e.clientX - rect.left;
+    this.mouseY = e.clientY - rect.top;
+  }
+
+  animate() {
+    this.ctx.clearRect(0, 0, this.width, this.height);
+
+    // Update and draw particles
+    this.particles.forEach((p) => {
+      p.update(this.width, this.height);
+      p.draw(this.ctx);
+    });
+
+    // Draw lines
+    this.drawConnections();
+
+    this.animationId = requestAnimationFrame(this.animate);
+  }
+
+  private drawConnections() {
+    this.ctx.lineWidth = 1;
+
+    for (let i = 0; i < this.particles.length; i++) {
+      const p1 = this.particles[i];
+
+      // Connect to mouse if close
+      const distMouse = Math.hypot(p1.x - this.mouseX, p1.y - this.mouseY);
+      if (distMouse < this.connectionDistance + 50) {
+        const alpha = 1 - distMouse / (this.connectionDistance + 50);
+        this.ctx.strokeStyle = `rgba(255, 255, 255, ${alpha * 0.4})`; // Brighter near mouse
+        this.ctx.beginPath();
+        this.ctx.moveTo(p1.x, p1.y);
+        this.ctx.lineTo(this.mouseX, this.mouseY);
+        this.ctx.stroke();
+
+        // Gently attract to mouse
+        if (distMouse > 10) {
+          p1.x += (this.mouseX - p1.x) * 0.005;
+          p1.y += (this.mouseY - p1.y) * 0.005;
+        }
+      }
+
+      // Connect to other particles
+      for (let j = i + 1; j < this.particles.length; j++) {
+        const p2 = this.particles[j];
+        const dist = Math.hypot(p1.x - p2.x, p1.y - p2.y);
+
+        if (dist < this.connectionDistance) {
+          const alpha = 1 - dist / this.connectionDistance;
+          this.ctx.strokeStyle = `rgba(255, 255, 255, ${alpha * 0.15})`;
+          this.ctx.beginPath();
+          this.ctx.moveTo(p1.x, p1.y);
+          this.ctx.lineTo(p2.x, p2.y);
+          this.ctx.stroke();
+        }
+      }
+    }
+  }
+
+  destroy() {
+    cancelAnimationFrame(this.animationId);
+    window.removeEventListener("mousemove", this.handleMouseMove);
+  }
+}
+
+class Particle {
+  x: number;
+  y: number;
+  vx: number;
+  vy: number;
+  size: number;
+
+  constructor(w: number, h: number, speed: number) {
+    this.x = Math.random() * w;
+    this.y = Math.random() * h;
+    this.vx = (Math.random() - 0.5) * speed;
+    this.vy = (Math.random() - 0.5) * speed;
+    this.size = Math.random() * 2 + 1;
+  }
+
+  update(w: number, h: number) {
+    this.x += this.vx;
+    this.y += this.vy;
+
+    // Bounce off walls
+    if (this.x < 0 || this.x > w) this.vx *= -1;
+    if (this.y < 0 || this.y > h) this.vy *= -1;
+  }
+
+  draw(ctx: CanvasRenderingContext2D) {
+    ctx.fillStyle = "rgba(255, 255, 255, 0.4)";
+    ctx.beginPath();
+    ctx.arc(this.x, this.y, this.size, 0, Math.PI * 2);
+    ctx.fill();
+  }
+}
diff --git a/packages/ui/src/lib/effects/SaturnEffect.ts b/packages/ui/src/lib/effects/SaturnEffect.ts
new file mode 100644
index 0000000..357da9d
--- /dev/null
+++ b/packages/ui/src/lib/effects/SaturnEffect.ts
@@ -0,0 +1,340 @@
+// Optimized Saturn Effect for low-end hardware
+// Uses TypedArrays for memory efficiency and reduced particle density
+
+export class SaturnEffect {
+  private canvas: HTMLCanvasElement;
+  private ctx: CanvasRenderingContext2D;
+  private width: number = 0;
+  private height: number = 0;
+
+  // Data-oriented design for performance
+  // xyz: Float32Array where [i*3, i*3+1, i*3+2] corresponds to x, y, z
+  private xyz: Float32Array | null = null;
+  // types: Uint8Array where 0 = planet, 1 = ring
+  private types: Uint8Array | null = null;
+  private count: number = 0;
+
+  private animationId: number = 0;
+  private angle: number = 0;
+  private scaleFactor: number = 1;
+
+  // Mouse interaction properties
+  private isDragging: boolean = false;
+  private lastMouseX: number = 0;
+  private lastMouseTime: number = 0;
+  private mouseVelocities: number[] = []; // Store recent velocities for averaging
+
+  // Rotation speed control
+  private readonly baseSpeed: number = 0.005; // Original rotation speed
+  private currentSpeed: number = 0.005; // Current rotation speed (can be modified by mouse)
+  private rotationDirection: number = 1; // 1 for clockwise, -1 for counter-clockwise
+  private readonly speedDecayRate: number = 0.992; // How fast speed returns to normal (closer to 1 = slower decay)
+  private readonly minSpeedMultiplier: number = 1; // Minimum speed is baseSpeed
+  private readonly maxSpeedMultiplier: number = 50; // Maximum speed is 50x baseSpeed
+  private isStopped: boolean = false; // Whether the user has stopped the rotation
+
+  constructor(canvas: HTMLCanvasElement) {
+    this.canvas = canvas;
+    this.ctx = canvas.getContext("2d", {
+      alpha: true,
+      desynchronized: false, // default is usually fine, 'desynchronized' can help latency but might flicker
+    })!;
+
+    // Initial resize will set up everything
+    this.resize(window.innerWidth, window.innerHeight);
+    this.initParticles();
+
+    this.animate = this.animate.bind(this);
+    this.animate();
+  }
+
+  // Public methods for external mouse event handling
+  // These can be called from any element that wants to control the Saturn rotation
+
+  handleMouseDown(clientX: number) {
+    this.isDragging = true;
+    this.lastMouseX = clientX;
+    this.lastMouseTime = performance.now();
+    this.mouseVelocities = [];
+  }
+
+  handleMouseMove(clientX: number) {
+    if (!this.isDragging) return;
+
+    const currentTime = performance.now();
+    const deltaTime = currentTime - this.lastMouseTime;
+
+    if (deltaTime > 0) {
+      const deltaX = clientX - this.lastMouseX;
+      const velocity = deltaX / deltaTime; // pixels per millisecond
+
+      // Store recent velocities (keep last 5 for smoothing)
+      this.mouseVelocities.push(velocity);
+      if (this.mouseVelocities.length > 5) {
+        this.mouseVelocities.shift();
+      }
+
+      // Apply direct rotation while dragging
+      this.angle += deltaX * 0.002;
+    }
+
+    this.lastMouseX = clientX;
+    this.lastMouseTime = currentTime;
+  }
+
+  handleMouseUp() {
+    if (this.isDragging && this.mouseVelocities.length > 0) {
+      this.applyFlingVelocity();
+    }
+    this.isDragging = false;
+  }
+
+  handleTouchStart(clientX: number) {
+    this.isDragging = true;
+    this.lastMouseX = clientX;
+    this.lastMouseTime = performance.now();
+    this.mouseVelocities = [];
+  }
+
+  handleTouchMove(clientX: number) {
+    if (!this.isDragging) return;
+
+    const currentTime = performance.now();
+    const deltaTime = currentTime - this.lastMouseTime;
+
+    if (deltaTime > 0) {
+      const deltaX = clientX - this.lastMouseX;
+      const velocity = deltaX / deltaTime;
+
+      this.mouseVelocities.push(velocity);
+      if (this.mouseVelocities.length > 5) {
+        this.mouseVelocities.shift();
+      }
+
+      this.angle += deltaX * 0.002;
+    }
+
+    this.lastMouseX = clientX;
+    this.lastMouseTime = currentTime;
+  }
+
+  handleTouchEnd() {
+    if (this.isDragging && this.mouseVelocities.length > 0) {
+      this.applyFlingVelocity();
+    }
+    this.isDragging = false;
+  }
+
+  private applyFlingVelocity() {
+    // Calculate average velocity from recent samples
+    const avgVelocity =
+      this.mouseVelocities.reduce((a, b) => a + b, 0) / this.mouseVelocities.length;
+
+    // Threshold for considering it a "fling" (pixels per millisecond)
+    const flingThreshold = 0.3;
+    // Threshold for considering the rotation as "stopped" by user
+    const stopThreshold = 0.1;
+
+    if (Math.abs(avgVelocity) > flingThreshold) {
+      // User flung it - start rotating again
+      this.isStopped = false;
+
+      // Determine new direction based on fling direction
+      const newDirection = avgVelocity > 0 ? 1 : -1;
+
+      // If direction changed, update it permanently
+      if (newDirection !== this.rotationDirection) {
+        this.rotationDirection = newDirection;
+      }
+
+      // Calculate speed boost based on fling strength
+      // Map velocity to speed multiplier (stronger fling = faster rotation)
+      const speedMultiplier = Math.min(
+        this.maxSpeedMultiplier,
+        this.minSpeedMultiplier + Math.abs(avgVelocity) * 10,
+      );
+
+      this.currentSpeed = this.baseSpeed * speedMultiplier;
+    } else if (Math.abs(avgVelocity) < stopThreshold) {
+      // User gently released - keep it stopped
+      this.isStopped = true;
+      this.currentSpeed = 0;
+    }
+    // If velocity is between stopThreshold and flingThreshold,
+    // keep current state (don't change isStopped)
+  }
+
+  resize(width: number, height: number) {
+    const dpr = window.devicePixelRatio || 1;
+    this.width = width;
+    this.height = height;
+
+    this.canvas.width = width * dpr;
+    this.canvas.height = height * dpr;
+    this.canvas.style.width = `${width}px`;
+    this.canvas.style.height = `${height}px`;
+
+    this.ctx.scale(dpr, dpr);
+
+    // Dynamic scaling based on screen size
+    const minDim = Math.min(width, height);
+    this.scaleFactor = minDim * 0.45;
+  }
+
+  initParticles() {
+    // Significantly reduced particle count for CPU optimization
+    // Planet: 1800 -> 1000
+    // Rings: 5000 -> 2500
+    // Total approx 3500 vs 6800 previously (approx 50% reduction)
+    const planetCount = 1000;
+    const ringCount = 2500;
+    this.count = planetCount + ringCount;
+
+    // Use TypedArrays for better memory locality
+    this.xyz = new Float32Array(this.count * 3);
+    this.types = new Uint8Array(this.count);
+
+    let idx = 0;
+
+    // 1. Planet
+    for (let i = 0; i < planetCount; i++) {
+      const theta = Math.random() * Math.PI * 2;
+      const phi = Math.acos(Math.random() * 2 - 1);
+      const r = 1.0;
+
+      // x, y, z
+      this.xyz[idx * 3] = r * Math.sin(phi) * Math.cos(theta);
+      this.xyz[idx * 3 + 1] = r * Math.sin(phi) * Math.sin(theta);
+      this.xyz[idx * 3 + 2] = r * Math.cos(phi);
+
+      this.types[idx] = 0; // 0 for planet
+      idx++;
+    }
+
+    // 2. Rings
+    const ringInner = 1.4;
+    const ringOuter = 2.3;
+
+    for (let i = 0; i < ringCount; i++) {
+      const angle = Math.random() * Math.PI * 2;
+      const dist = Math.sqrt(
+        Math.random() * (ringOuter * ringOuter - ringInner * ringInner) + ringInner * ringInner,
+      );
+
+      // x, y, z
+      this.xyz[idx * 3] = dist * Math.cos(angle);
+      this.xyz[idx * 3 + 1] = (Math.random() - 0.5) * 0.05;
+      this.xyz[idx * 3 + 2] = dist * Math.sin(angle);
+
+      this.types[idx] = 1; // 1 for ring
+      idx++;
+    }
+  }
+
+  animate() {
+    this.ctx.clearRect(0, 0, this.width, this.height);
+
+    // Normal blending
+    this.ctx.globalCompositeOperation = "source-over";
+
+    // Update rotation speed - decay towards base speed while maintaining direction
+    if (!this.isDragging && !this.isStopped) {
+      if (this.currentSpeed > this.baseSpeed) {
+        // Gradually decay speed back to base speed
+        this.currentSpeed =
+          this.baseSpeed + (this.currentSpeed - this.baseSpeed) * this.speedDecayRate;
+
+        // Snap to base speed when close enough
+        if (this.currentSpeed - this.baseSpeed < 0.00001) {
+          this.currentSpeed = this.baseSpeed;
+        }
+      }
+
+      // Apply rotation with current speed and direction
+      this.angle += this.currentSpeed * this.rotationDirection;
+    }
+
+    const cx = this.width * 0.6;
+    const cy = this.height * 0.5;
+
+    // Pre-calculate rotation matrices
+    const rotationY = this.angle;
+    const rotationX = 0.4;
+    const rotationZ = 0.15;
+
+    const sinY = Math.sin(rotationY);
+    const cosY = Math.cos(rotationY);
+    const sinX = Math.sin(rotationX);
+    const cosX = Math.cos(rotationX);
+    const sinZ = Math.sin(rotationZ);
+    const cosZ = Math.cos(rotationZ);
+
+    const fov = 1500;
+    const scaleFactor = this.scaleFactor;
+
+    if (!this.xyz || !this.types) return;
+
+    for (let i = 0; i < this.count; i++) {
+      const x = this.xyz[i * 3];
+      const y = this.xyz[i * 3 + 1];
+      const z = this.xyz[i * 3 + 2];
+
+      // Apply Scale
+      const px = x * scaleFactor;
+      const py = y * scaleFactor;
+      const pz = z * scaleFactor;
+
+      // 1. Rotate Y
+      const x1 = px * cosY - pz * sinY;
+      const z1 = pz * cosY + px * sinY;
+      // y1 = py
+
+      // 2. Rotate X
+      const y2 = py * cosX - z1 * sinX;
+      const z2 = z1 * cosX + py * sinX;
+      // x2 = x1
+
+      // 3. Rotate Z
+      const x3 = x1 * cosZ - y2 * sinZ;
+      const y3 = y2 * cosZ + x1 * sinZ;
+      const z3 = z2;
+
+      const scale = fov / (fov + z3);
+
+      if (z3 > -fov) {
+        const x2d = cx + x3 * scale;
+        const y2d = cy + y3 * scale;
+
+        // Size calculation - slightly larger dots to compensate for lower count
+        // Previously Planet 2.0 -> 2.4, Ring 1.3 -> 1.5
+        const type = this.types[i];
+        const sizeBase = type === 0 ? 2.4 : 1.5;
+        const size = sizeBase * scale;
+
+        // Opacity
+        let alpha = scale * scale * scale;
+        if (alpha > 1) alpha = 1;
+        if (alpha < 0.15) continue; // Skip very faint particles for performance
+
+        // Optimization: Planet color vs Ring color
+        if (type === 0) {
+          // Planet: Warm White
+          this.ctx.fillStyle = `rgba(255, 240, 220, ${alpha})`;
+        } else {
+          // Ring: Cool White
+          this.ctx.fillStyle = `rgba(220, 240, 255, ${alpha})`;
+        }
+
+        // Render as squares (fillRect) instead of circles (arc)
+        // This is significantly faster for software rendering and reduces GPU usage.
+        this.ctx.fillRect(x2d, y2d, size, size);
+      }
+    }
+
+    this.animationId = requestAnimationFrame(this.animate);
+  }
+
+  destroy() {
+    cancelAnimationFrame(this.animationId);
+  }
+}
diff --git a/packages/ui/src/lib/modLoaderApi.ts b/packages/ui/src/lib/modLoaderApi.ts
new file mode 100644
index 0000000..75f404a
--- /dev/null
+++ b/packages/ui/src/lib/modLoaderApi.ts
@@ -0,0 +1,106 @@
+/**
+ * Mod Loader API service for Fabric and Forge integration.
+ * This module provides functions to interact with the Tauri backend
+ * for mod loader version management.
+ */
+
+import { invoke } from "@tauri-apps/api/core";
+import type {
+  FabricGameVersion,
+  FabricLoaderVersion,
+  FabricLoaderEntry,
+  InstalledFabricVersion,
+  ForgeVersion,
+  InstalledForgeVersion,
+} from "../types";
+
+// ==================== Fabric API ====================
+
+/**
+ * Get all Minecraft versions supported by Fabric.
+ */
+export async function getFabricGameVersions(): Promise<FabricGameVersion[]> {
+  return invoke<FabricGameVersion[]>("get_fabric_game_versions");
+}
+
+/**
+ * Get all available Fabric loader versions.
+ */
+export async function getFabricLoaderVersions(): Promise<FabricLoaderVersion[]> {
+  return invoke<FabricLoaderVersion[]>("get_fabric_loader_versions");
+}
+
+/**
+ * Get Fabric loaders available for a specific Minecraft version.
+ */
+export async function getFabricLoadersForVersion(
+  gameVersion: string,
+): Promise<FabricLoaderEntry[]> {
+  return invoke<FabricLoaderEntry[]>("get_fabric_loaders_for_version", {
+    gameVersion,
+  });
+}
+
+/**
+ * Install Fabric loader for a specific Minecraft version.
+ */
+export async function installFabric(
+  gameVersion: string,
+  loaderVersion: string,
+): Promise<InstalledFabricVersion> {
+  return invoke<InstalledFabricVersion>("install_fabric", {
+    gameVersion,
+    loaderVersion,
+  });
+}
+
+/**
+ * List all installed Fabric versions.
+ */
+export async function listInstalledFabricVersions(): Promise<string[]> {
+  return invoke<string[]>("list_installed_fabric_versions");
+}
+
+/**
+ * Check if Fabric is installed for a specific version combination.
+ */
+export async function isFabricInstalled(
+  gameVersion: string,
+  loaderVersion: string,
+): Promise<boolean> {
+  return invoke<boolean>("is_fabric_installed", {
+    gameVersion,
+    loaderVersion,
+  });
+}
+
+// ==================== Forge API ====================
+
+/**
+ * Get all Minecraft versions supported by Forge.
+ */
+export async function getForgeGameVersions(): Promise<string[]> {
+  return invoke<string[]>("get_forge_game_versions");
+}
+
+/**
+ * Get Forge versions available for a specific Minecraft version.
+ */
+export async function getForgeVersionsForGame(gameVersion: string): Promise<ForgeVersion[]> {
+  return invoke<ForgeVersion[]>("get_forge_versions_for_game", {
+    gameVersion,
+  });
+}
+
+/**
+ * Install Forge for a specific Minecraft version.
+ */
+export async function installForge(
+  gameVersion: string,
+  forgeVersion: string,
+): Promise<InstalledForgeVersion> {
+  return invoke<InstalledForgeVersion>("install_forge", {
+    gameVersion,
+    forgeVersion,
+  });
+}
diff --git a/packages/ui/src/main.ts b/packages/ui/src/main.ts
new file mode 100644
index 0000000..d47b930
--- /dev/null
+++ b/packages/ui/src/main.ts
@@ -0,0 +1,9 @@
+import { mount } from "svelte";
+import "./app.css";
+import App from "./App.svelte";
+
+const app = mount(App, {
+  target: document.getElementById("app")!,
+});
+
+export default app;
diff --git a/packages/ui/src/stores/assistant.svelte.ts b/packages/ui/src/stores/assistant.svelte.ts
new file mode 100644
index 0000000..a3f47ea
--- /dev/null
+++ b/packages/ui/src/stores/assistant.svelte.ts
@@ -0,0 +1,166 @@
+import { invoke } from "@tauri-apps/api/core";
+import { listen, type UnlistenFn } from "@tauri-apps/api/event";
+
+export interface GenerationStats {
+  total_duration: number;
+  load_duration: number;
+  prompt_eval_count: number;
+  prompt_eval_duration: number;
+  eval_count: number;
+  eval_duration: number;
+}
+
+export interface Message {
+  role: "user" | "assistant" | "system";
+  content: string;
+  stats?: GenerationStats;
+}
+
+interface StreamChunk {
+  content: string;
+  done: boolean;
+  stats?: GenerationStats;
+}
+
+// Module-level state using $state
+let messages = $state<Message[]>([]);
+let isProcessing = $state(false);
+let isProviderHealthy = $state(false);
+let streamingContent = "";
+let initialized = false;
+let streamUnlisten: UnlistenFn | null = null;
+
+async function init() {
+  if (initialized) return;
+  initialized = true;
+  await checkHealth();
+}
+
+async function checkHealth() {
+  try {
+    isProviderHealthy = await invoke("assistant_check_health");
+  } catch (e) {
+    console.error("Failed to check provider health:", e);
+    isProviderHealthy = false;
+  }
+}
+
+function finishStreaming() {
+  isProcessing = false;
+  streamingContent = "";
+  if (streamUnlisten) {
+    streamUnlisten();
+    streamUnlisten = null;
+  }
+}
+
+async function sendMessage(
+  content: string,
+  isEnabled: boolean,
+  provider: string,
+  endpoint: string,
+) {
+  if (!content.trim()) return;
+  if (!isEnabled) {
+    messages = [
+      ...messages,
+      {
+        role: "assistant",
+        content: "Assistant is disabled. Enable it in Settings > AI Assistant.",
+      },
+    ];
+    return;
+  }
+
+  // Add user message
+  messages = [...messages, { role: "user", content }];
+  isProcessing = true;
+  streamingContent = "";
+
+  // Add empty assistant message for streaming
+  messages = [...messages, { role: "assistant", content: "" }];
+
+  try {
+    // Set up stream listener
+    streamUnlisten = await listen<StreamChunk>("assistant-stream", (event) => {
+      const chunk = event.payload;
+
+      if (chunk.content) {
+        streamingContent += chunk.content;
+        // Update the last message (assistant's response)
+        const lastIdx = messages.length - 1;
+        if (lastIdx >= 0 && messages[lastIdx].role === "assistant") {
+          messages[lastIdx] = {
+            ...messages[lastIdx],
+            content: streamingContent,
+          };
+          // Trigger reactivity
+          messages = [...messages];
+        }
+      }
+
+      if (chunk.done) {
+        if (chunk.stats) {
+          const lastIdx = messages.length - 1;
+          if (lastIdx >= 0 && messages[lastIdx].role === "assistant") {
+            messages[lastIdx] = {
+              ...messages[lastIdx],
+              stats: chunk.stats,
+            };
+            messages = [...messages];
+          }
+        }
+        finishStreaming();
+      }
+    });
+
+    // Start streaming chat
+    await invoke<string>("assistant_chat_stream", {
+      messages: messages.slice(0, -1), // Exclude the empty assistant message
+    });
+  } catch (e) {
+    console.error("Failed to send message:", e);
+    const errorMessage = e instanceof Error ? e.message : String(e);
+
+    let helpText = "";
+    if (provider === "ollama") {
+      helpText = `\n\nPlease ensure Ollama is running at ${endpoint}.`;
+    } else if (provider === "openai") {
+      helpText = "\n\nPlease check your OpenAI API key in Settings.";
+    }
+
+    // Update the last message with error
+    const lastIdx = messages.length - 1;
+    if (lastIdx >= 0 && messages[lastIdx].role === "assistant") {
+      messages[lastIdx] = {
+        role: "assistant",
+        content: `Error: ${errorMessage}${helpText}`,
+      };
+      messages = [...messages];
+    }
+
+    finishStreaming();
+  }
+}
+
+function clearHistory() {
+  messages = [];
+  streamingContent = "";
+}
+
+// Export as an object with getters for reactive access
+export const assistantState = {
+  get messages() {
+    return messages;
+  },
+  get isProcessing() {
+    return isProcessing;
+  },
+  get isProviderHealthy() {
+    return isProviderHealthy;
+  },
+  init,
+  checkHealth,
+  sendMessage,
+  clearHistory,
+};
diff --git a/packages/ui/src/stores/auth.svelte.ts b/packages/ui/src/stores/auth.svelte.ts
new file mode 100644
index 0000000..1b613a7
--- /dev/null
+++ b/packages/ui/src/stores/auth.svelte.ts
@@ -0,0 +1,192 @@
+import { invoke } from "@tauri-apps/api/core";
+import { open } from "@tauri-apps/plugin-shell";
+import { listen, type UnlistenFn } from "@tauri-apps/api/event";
+import type { Account, DeviceCodeResponse } from "../types";
+import { uiState } from "./ui.svelte";
+import { logsState } from "./logs.svelte";
+
+export class AuthState {
+  currentAccount = $state<Account | null>(null);
+  isLoginModalOpen = $state(false);
+  isLogoutConfirmOpen = $state(false);
+  loginMode = $state<"select" | "offline" | "microsoft">("select");
+  offlineUsername = $state("");
+  deviceCodeData = $state<DeviceCodeResponse | null>(null);
+  msLoginLoading = $state(false);
+  msLoginStatus = $state("Waiting for authorization...");
+
+  private pollInterval: ReturnType<typeof setInterval> | null = null;
+  private isPollingRequestActive = false;
+  private authProgressUnlisten: UnlistenFn | null = null;
+
+  async checkAccount() {
+    try {
+      const acc = await invoke("get_active_account");
+      this.currentAccount = acc as Account | null;
+    } catch (e) {
+      console.error("Failed to check account:", e);
+    }
+  }
+
+  openLoginModal() {
+    if (this.currentAccount) {
+      // Show custom logout confirmation dialog
+      this.isLogoutConfirmOpen = true;
+      return;
+    }
+    this.resetLoginState();
+    this.isLoginModalOpen = true;
+  }
+
+  cancelLogout() {
+    this.isLogoutConfirmOpen = false;
+  }
+
+  async confirmLogout() {
+    this.isLogoutConfirmOpen = false;
+    try {
+      await invoke("logout");
+      this.currentAccount = null;
+      uiState.setStatus("Logged out successfully");
+    } catch (e) {
+      console.error("Logout failed:", e);
+    }
+  }
+
+  closeLoginModal() {
+    this.stopPolling();
+    this.isLoginModalOpen = false;
+  }
+
+  resetLoginState() {
+    this.loginMode = "select";
+    this.offlineUsername = "";
+    this.deviceCodeData = null;
+    this.msLoginLoading = false;
+  }
+
+  async performOfflineLogin() {
+    if (!this.offlineUsername) return;
+    try {
+      this.currentAccount = (await invoke("login_offline", {
+        username: this.offlineUsername,
+      })) as Account;
+      this.isLoginModalOpen = false;
+    } catch (e) {
+      alert("Login failed: " + e);
+    }
+  }
+
+  async startMicrosoftLogin() {
+    this.loginMode = "microsoft";
+    this.msLoginLoading = true;
+    this.msLoginStatus = "Waiting for authorization...";
+    this.stopPolling();
+
+    // Setup auth progress listener
+    this.setupAuthProgressListener();
+
+    try {
+      this.deviceCodeData = (await invoke("start_microsoft_login")) as DeviceCodeResponse;
+
+      if (this.deviceCodeData) {
+        try {
+          await navigator.clipboard.writeText(this.deviceCodeData.user_code);
+        } catch (e) {
+          console.error("Clipboard failed", e);
+        }
+
+        open(this.deviceCodeData.verification_uri);
+        logsState.addLog(
+          "info",
+          "Auth",
+          "Microsoft login started, waiting for browser authorization...",
+        );
+
+        console.log("Starting polling for token...");
+        const intervalMs = (this.deviceCodeData.interval || 5) * 1000;
+        this.pollInterval = setInterval(
+          () => this.checkLoginStatus(this.deviceCodeData!.device_code),
+          intervalMs,
+        );
+      }
+    } catch (e) {
+      logsState.addLog("error", "Auth", `Failed to start Microsoft login: ${e}`);
+      alert("Failed to start Microsoft login: " + e);
+      this.loginMode = "select";
+    } finally {
+      this.msLoginLoading = false;
+    }
+  }
+
+  private async setupAuthProgressListener() {
+    // Clean up previous listener if exists
+    if (this.authProgressUnlisten) {
+      this.authProgressUnlisten();
+      this.authProgressUnlisten = null;
+    }
+
+    this.authProgressUnlisten = await listen<string>("auth-progress", (event) => {
+      const message = event.payload;
+      this.msLoginStatus = message;
+      logsState.addLog("info", "Auth", message);
+    });
+  }
+
+  private cleanupAuthListener() {
+    if (this.authProgressUnlisten) {
+      this.authProgressUnlisten();
+      this.authProgressUnlisten = null;
+    }
+  }
+
+  stopPolling() {
+    if (this.pollInterval) {
+      clearInterval(this.pollInterval);
+      this.pollInterval = null;
+    }
+  }
+
+  async checkLoginStatus(deviceCode: string) {
+    if (this.isPollingRequestActive) return;
+    this.isPollingRequestActive = true;
+
+    console.log("Polling Microsoft API...");
+    try {
+      this.currentAccount = (await invoke("complete_microsoft_login", {
+        deviceCode,
+      })) as Account;
+
+      console.log("Login Successful!", this.currentAccount);
+      this.stopPolling();
+      this.cleanupAuthListener();
+      this.isLoginModalOpen = false;
+      logsState.addLog(
+        "info",
+        "Auth",
+        `Login successful! Welcome, ${this.currentAccount.username}`,
+      );
+      uiState.setStatus("Welcome back, " + this.currentAccount.username);
+    } catch (e: any) {
+      const errStr = e.toString();
+      if (errStr.includes("authorization_pending")) {
+        console.log("Status: Waiting for user to authorize...");
+      } else {
+        console.error("Polling Error:", errStr);
+        this.msLoginStatus = "Error: " + errStr;
+        logsState.addLog("error", "Auth", `Login error: ${errStr}`);
+
+        if (errStr.includes("expired_token") || errStr.includes("access_denied")) {
+          this.stopPolling();
+          this.cleanupAuthListener();
+          alert("Login failed: " + errStr);
+          this.loginMode = "select";
+        }
+      }
+    } finally {
+      this.isPollingRequestActive = false;
+    }
+  }
+}
+
+export const authState = new AuthState();
diff --git a/packages/ui/src/stores/game.svelte.ts b/packages/ui/src/stores/game.svelte.ts
new file mode 100644
index 0000000..504d108
--- /dev/null
+++ b/packages/ui/src/stores/game.svelte.ts
@@ -0,0 +1,78 @@
+import { invoke } from "@tauri-apps/api/core";
+import type { Version } from "../types";
+import { uiState } from "./ui.svelte";
+import { authState } from "./auth.svelte";
+import { instancesState } from "./instances.svelte";
+
+export class GameState {
+  versions = $state<Version[]>([]);
+  selectedVersion = $state("");
+
+  constructor() {
+    // Constructor intentionally empty
+    // Instance switching handled in App.svelte with $effect
+  }
+
+  get latestRelease() {
+    return this.versions.find((v) => v.type === "release");
+  }
+
+  async loadVersions(instanceId?: string) {
+    const id = instanceId || instancesState.activeInstanceId;
+    if (!id) {
+      this.versions = [];
+      return;
+    }
+
+    try {
+      this.versions = await invoke<Version[]>("get_versions", {
+        instanceId: id,
+      });
+      // Don't auto-select version here - let BottomBar handle version selection
+      // based on installed versions only
+    } catch (e) {
+      console.error("Failed to fetch versions:", e);
+      uiState.setStatus("Error fetching versions: " + e);
+    }
+  }
+
+  async startGame() {
+    if (!authState.currentAccount) {
+      alert("Please login first!");
+      authState.openLoginModal();
+      return;
+    }
+
+    if (!this.selectedVersion) {
+      alert("Please select a version!");
+      return;
+    }
+
+    if (!instancesState.activeInstanceId) {
+      alert("Please select an instance first!");
+      uiState.setView("instances");
+      return;
+    }
+
+    uiState.setStatus("Preparing to launch " + this.selectedVersion + "...");
+    console.log(
+      "Invoking start_game for version:",
+      this.selectedVersion,
+      "instance:",
+      instancesState.activeInstanceId,
+    );
+    try {
+      const msg = await invoke<string>("start_game", {
+        instanceId: instancesState.activeInstanceId,
+        versionId: this.selectedVersion,
+      });
+      console.log("Response:", msg);
+      uiState.setStatus(msg);
+    } catch (e) {
+      console.error(e);
+      uiState.setStatus("Error: " + e);
+    }
+  }
+}
+
+export const gameState = new GameState();
diff --git a/packages/ui/src/stores/instances.svelte.ts b/packages/ui/src/stores/instances.svelte.ts
new file mode 100644
index 0000000..f4ac4e9
--- /dev/null
+++ b/packages/ui/src/stores/instances.svelte.ts
@@ -0,0 +1,109 @@
+import { invoke } from "@tauri-apps/api/core";
+import type { Instance } from "../types";
+import { uiState } from "./ui.svelte";
+
+export class InstancesState {
+  instances = $state<Instance[]>([]);
+  activeInstanceId = $state<string | null>(null);
+  get activeInstance(): Instance | null {
+    if (!this.activeInstanceId) return null;
+    return this.instances.find((i) => i.id === this.activeInstanceId) || null;
+  }
+
+  async loadInstances() {
+    try {
+      this.instances = await invoke<Instance[]>("list_instances");
+      const active = await invoke<Instance | null>("get_active_instance");
+      if (active) {
+        this.activeInstanceId = active.id;
+      } else if (this.instances.length > 0) {
+        // If no active instance but instances exist, set the first one as active
+        await this.setActiveInstance(this.instances[0].id);
+      }
+    } catch (e) {
+      console.error("Failed to load instances:", e);
+      uiState.setStatus("Error loading instances: " + e);
+    }
+  }
+
+  async createInstance(name: string): Promise<Instance | null> {
+    try {
+      const instance = await invoke<Instance>("create_instance", { name });
+      await this.loadInstances();
+      uiState.setStatus(`Instance "${name}" created successfully`);
+      return instance;
+    } catch (e) {
+      console.error("Failed to create instance:", e);
+      uiState.setStatus("Error creating instance: " + e);
+      return null;
+    }
+  }
+
+  async deleteInstance(id: string) {
+    try {
+      await invoke("delete_instance", { instanceId: id });
+      await this.loadInstances();
+      // If deleted instance was active, set another as active
+      if (this.activeInstanceId === id) {
+        if (this.instances.length > 0) {
+          await this.setActiveInstance(this.instances[0].id);
+        } else {
+          this.activeInstanceId = null;
+        }
+      }
+      uiState.setStatus("Instance deleted successfully");
+    } catch (e) {
+      console.error("Failed to delete instance:", e);
+      uiState.setStatus("Error deleting instance: " + e);
+    }
+  }
+
+  async updateInstance(instance: Instance) {
+    try {
+      await invoke("update_instance", { instance });
+      await this.loadInstances();
+      uiState.setStatus("Instance updated successfully");
+    } catch (e) {
+      console.error("Failed to update instance:", e);
+      uiState.setStatus("Error updating instance: " + e);
+    }
+  }
+
+  async setActiveInstance(id: string) {
+    try {
+      await invoke("set_active_instance", { instanceId: id });
+      this.activeInstanceId = id;
+      uiState.setStatus("Active instance changed");
+    } catch (e) {
+      console.error("Failed to set active instance:", e);
+      uiState.setStatus("Error setting active instance: " + e);
+    }
+  }
+
+  async duplicateInstance(id: string, newName: string): Promise<Instance | null> {
+    try {
+      const instance = await invoke<Instance>("duplicate_instance", {
+        instanceId: id,
+        newName,
+      });
+      await this.loadInstances();
+      uiState.setStatus(`Instance duplicated as "${newName}"`);
+      return instance;
+    } catch (e) {
+      console.error("Failed to duplicate instance:", e);
+      uiState.setStatus("Error duplicating instance: " + e);
+      return null;
+    }
+  }
+
+  async getInstance(id: string): Promise<Instance | null> {
+    try {
+      return await invoke<Instance>("get_instance", { instanceId: id });
+    } catch (e) {
+      console.error("Failed to get instance:", e);
+      return null;
+    }
+  }
+}
+
+export const instancesState = new InstancesState();
diff --git a/packages/ui/src/stores/logs.svelte.ts b/packages/ui/src/stores/logs.svelte.ts
new file mode 100644
index 0000000..c9d4acc
--- /dev/null
+++ b/packages/ui/src/stores/logs.svelte.ts
@@ -0,0 +1,151 @@
+import { listen } from "@tauri-apps/api/event";
+
+export interface LogEntry {
+  id: number;
+  timestamp: string;
+  level: "info" | "warn" | "error" | "debug" | "fatal";
+  source: string;
+  message: string;
+}
+
+// Parse Minecraft/Java log format: [HH:MM:SS] [Thread/LEVEL]: message
+// or: [HH:MM:SS] [Thread/LEVEL] [Source]: message
+const GAME_LOG_REGEX = /^\[[\d:]+\]\s*\[([^\]]+)\/(\w+)\](?:\s*\[([^\]]+)\])?:\s*(.*)$/;
+
+function parseGameLogLevel(levelStr: string): LogEntry["level"] {
+  const upper = levelStr.toUpperCase();
+  if (upper === "INFO") return "info";
+  if (upper === "WARN" || upper === "WARNING") return "warn";
+  if (upper === "ERROR" || upper === "SEVERE") return "error";
+  if (
+    upper === "DEBUG" ||
+    upper === "TRACE" ||
+    upper === "FINE" ||
+    upper === "FINER" ||
+    upper === "FINEST"
+  )
+    return "debug";
+  if (upper === "FATAL") return "fatal";
+  return "info";
+}
+
+export class LogsState {
+  logs = $state<LogEntry[]>([]);
+  private nextId = 0;
+  private maxLogs = 5000;
+
+  // Track all unique sources for filtering
+  sources = $state<Set<string>>(new Set(["Launcher"]));
+
+  constructor() {
+    this.addLog("info", "Launcher", "Logs initialized");
+  }
+
+  addLog(level: LogEntry["level"], source: string, message: string) {
+    const now = new Date();
+    const timestamp =
+      now.toLocaleTimeString() + "." + now.getMilliseconds().toString().padStart(3, "0");
+
+    this.logs.push({
+      id: this.nextId++,
+      timestamp,
+      level,
+      source,
+      message,
+    });
+
+    // Track source
+    if (!this.sources.has(source)) {
+      this.sources = new Set([...this.sources, source]);
+    }
+
+    if (this.logs.length > this.maxLogs) {
+      this.logs.shift();
+    }
+  }
+
+  // Parse game output and extract level/source
+  addGameLog(rawLine: string, isStderr: boolean) {
+    const match = rawLine.match(GAME_LOG_REGEX);
+
+    if (match) {
+      const [, thread, levelStr, extraSource, message] = match;
+      const level = parseGameLogLevel(levelStr);
+      // Use extraSource if available, otherwise use thread name as source hint
+      const source = extraSource || `Game/${thread.split("-")[0]}`;
+      this.addLog(level, source, message);
+    } else {
+      // Fallback: couldn't parse, use stderr as error indicator
+      const level = isStderr ? "error" : "info";
+      this.addLog(level, "Game", rawLine);
+    }
+  }
+
+  clear() {
+    this.logs = [];
+    this.sources = new Set(["Launcher"]);
+    this.addLog("info", "Launcher", "Logs cleared");
+  }
+
+  // Export with filter support
+  exportLogs(filteredLogs: LogEntry[]): string {
+    return filteredLogs
+      .map((l) => `[${l.timestamp}] [${l.source}/${l.level.toUpperCase()}] ${l.message}`)
+      .join("\n");
+  }
+
+  private initialized = false;
+
+  async init() {
+    if (this.initialized) return;
+    this.initialized = true;
+
+    // General Launcher Logs
+    await listen<string>("launcher-log", (e) => {
+      this.addLog("info", "Launcher", e.payload);
+    });
+
+    // Game Stdout - parse log level
+    await listen<string>("game-stdout", (e) => {
+      this.addGameLog(e.payload, false);
+    });
+
+    // Game Stderr - parse log level, default to error
+    await listen<string>("game-stderr", (e) => {
+      this.addGameLog(e.payload, true);
+    });
+
+    // Download Events (Summarized)
+    await listen("download-start", (e) => {
+      this.addLog("info", "Downloader", `Starting batch download of ${e.payload} files...`);
+    });
+
+    await listen("download-complete", () => {
+      this.addLog("info", "Downloader", "All downloads completed.");
+    });
+
+    // Listen to file download progress to log finished files
+    await listen<any>("download-progress", (e) => {
+      const p = e.payload;
+      if (p.status === "Finished") {
+        if (p.file.endsWith(".jar")) {
+          this.addLog("info", "Downloader", `Downloaded ${p.file}`);
+        }
+      }
+    });
+
+    // Java Download
+    await listen<any>("java-download-progress", (e) => {
+      const p = e.payload;
+      if (p.status === "Downloading" && p.percentage === 0) {
+        this.addLog("info", "JavaInstaller", `Downloading Java: ${p.file_name}`);
+      } else if (p.status === "Completed") {
+        this.addLog("info", "JavaInstaller", `Java installed: ${p.file_name}`);
+      } else if (p.status === "Error") {
+        this.addLog("error", "JavaInstaller", `Java download error`);
+      }
+    });
+  }
+}
+
+export const logsState = new LogsState();
diff --git a/packages/ui/src/stores/releases.svelte.ts b/packages/ui/src/stores/releases.svelte.ts
new file mode 100644
index 0000000..c858abb
--- /dev/null
+++ b/packages/ui/src/stores/releases.svelte.ts
@@ -0,0 +1,36 @@
+import { invoke } from "@tauri-apps/api/core";
+
+export interface GithubRelease {
+  tag_name: string;
+  name: string;
+  published_at: string;
+  body: string;
+  html_url: string;
+}
+
+export class ReleasesState {
+  releases = $state<GithubRelease[]>([]);
+  isLoading = $state(false);
+  isLoaded = $state(false);
+  error = $state<string | null>(null);
+
+  async loadReleases() {
+    // If already loaded or currently loading, skip to prevent duplicate requests
+    if (this.isLoaded || this.isLoading) return;
+
+    this.isLoading = true;
+    this.error = null;
+
+    try {
+      this.releases = await invoke<GithubRelease[]>("get_github_releases");
+      this.isLoaded = true;
+    } catch (e) {
+      console.error("Failed to load releases:", e);
+      this.error = String(e);
+    } finally {
+      this.isLoading = false;
+    }
+  }
+}
+
+export const releasesState = new ReleasesState();
diff --git a/packages/ui/src/stores/settings.svelte.ts b/packages/ui/src/stores/settings.svelte.ts
new file mode 100644
index 0000000..5d20050
--- /dev/null
+++ b/packages/ui/src/stores/settings.svelte.ts
@@ -0,0 +1,570 @@
+import { invoke } from "@tauri-apps/api/core";
+import { convertFileSrc } from "@tauri-apps/api/core";
+import { listen, type UnlistenFn } from "@tauri-apps/api/event";
+import type {
+  JavaCatalog,
+  JavaDownloadProgress,
+  JavaDownloadSource,
+  JavaInstallation,
+  JavaReleaseInfo,
+  LauncherConfig,
+  ModelInfo,
+  PendingJavaDownload,
+} from "../types";
+import { uiState } from "./ui.svelte";
+
+export class SettingsState {
+  settings = $state<LauncherConfig>({
+    min_memory: 1024,
+    max_memory: 2048,
+    java_path: "java",
+    width: 854,
+    height: 480,
+    download_threads: 32,
+    enable_gpu_acceleration: false,
+    enable_visual_effects: true,
+    active_effect: "constellation",
+    theme: "dark",
+    custom_background_path: undefined,
+    log_upload_service: "paste.rs",
+    pastebin_api_key: undefined,
+    assistant: {
+      enabled: true,
+      llm_provider: "ollama",
+      ollama_endpoint: "http://localhost:11434",
+      ollama_model: "llama3",
+      openai_api_key: undefined,
+      openai_endpoint: "https://api.openai.com/v1",
+      openai_model: "gpt-3.5-turbo",
+      system_prompt:
+        "You are a helpful Minecraft expert assistant. You help players with game issues, mod installation, performance optimization, and gameplay tips. Analyze any game logs provided and give concise, actionable advice.",
+      response_language: "auto",
+      tts_enabled: false,
+      tts_provider: "disabled",
+    },
+    use_shared_caches: false,
+    keep_legacy_per_instance_storage: true,
+    feature_flags: {
+      demo_user: false,
+      quick_play_enabled: false,
+      quick_play_path: undefined,
+      quick_play_singleplayer: true,
+      quick_play_multiplayer_server: undefined,
+    },
+  });
+
+  // Convert background path to proper asset URL
+  get backgroundUrl(): string | undefined {
+    if (this.settings.custom_background_path) {
+      return convertFileSrc(this.settings.custom_background_path);
+    }
+    return undefined;
+  }
+  javaInstallations = $state<JavaInstallation[]>([]);
+  isDetectingJava = $state(false);
+
+  // Java download modal state
+  showJavaDownloadModal = $state(false);
+  selectedDownloadSource = $state<JavaDownloadSource>("adoptium");
+
+  // Java catalog state
+  javaCatalog = $state<JavaCatalog | null>(null);
+  isLoadingCatalog = $state(false);
+  catalogError = $state("");
+
+  // Version selection state
+  selectedMajorVersion = $state<number | null>(null);
+  selectedImageType = $state<"jre" | "jdk">("jre");
+  showOnlyRecommended = $state(true);
+  searchQuery = $state("");
+
+  // Download progress state
+  isDownloadingJava = $state(false);
+  downloadProgress = $state<JavaDownloadProgress | null>(null);
+  javaDownloadStatus = $state("");
+
+  // Pending downloads
+  pendingDownloads = $state<PendingJavaDownload[]>([]);
+
+  // AI Model lists
+  ollamaModels = $state<ModelInfo[]>([]);
+  openaiModels = $state<ModelInfo[]>([]);
+  isLoadingOllamaModels = $state(false);
+  isLoadingOpenaiModels = $state(false);
+  ollamaModelsError = $state("");
+  openaiModelsError = $state("");
+
+  // Config Editor state
+  showConfigEditor = $state(false);
+  rawConfigContent = $state("");
+  configFilePath = $state("");
+  configEditorError = $state("");
+
+  // Event listener cleanup
+  private progressUnlisten: UnlistenFn | null = null;
+
+  async openConfigEditor() {
+    this.configEditorError = "";
+    try {
+      const path = await invoke<string>("get_config_path");
+      const content = await invoke<string>("read_raw_config");
+      this.configFilePath = path;
+      this.rawConfigContent = content;
+      this.showConfigEditor = true;
+    } catch (e) {
+      console.error("Failed to open config editor:", e);
+      uiState.setStatus(`Failed to open config: ${e}`);
+    }
+  }
+
+  async saveRawConfig(content: string, closeAfterSave = true) {
+    try {
+      await invoke("save_raw_config", { content });
+      // Reload settings to ensure UI is in sync
+      await this.loadSettings();
+      if (closeAfterSave) {
+        this.showConfigEditor = false;
+      }
+      uiState.setStatus("Configuration saved successfully!");
+    } catch (e) {
+      console.error("Failed to save config:", e);
+      this.configEditorError = String(e);
+    }
+  }
+
+  closeConfigEditor() {
+    this.showConfigEditor = false;
+    this.rawConfigContent = "";
+    this.configEditorError = "";
+  }
+
+  // Computed: filtered releases based on selection
+  get filteredReleases(): JavaReleaseInfo[] {
+    if (!this.javaCatalog) return [];
+
+    let releases = this.javaCatalog.releases;
+
+    // Filter by major version if selected
+    if (this.selectedMajorVersion !== null) {
+      releases = releases.filter((r) => r.major_version === this.selectedMajorVersion);
+    }
+
+    // Filter by image type
+    releases = releases.filter((r) => r.image_type === this.selectedImageType);
+
+    // Filter by recommended (LTS) versions
+    if (this.showOnlyRecommended) {
+      releases = releases.filter((r) => r.is_lts);
+    }
+
+    // Filter by search query
+    if (this.searchQuery.trim()) {
+      const query = this.searchQuery.toLowerCase();
+      releases = releases.filter(
+        (r) =>
+          r.release_name.toLowerCase().includes(query) ||
+          r.version.toLowerCase().includes(query) ||
+          r.major_version.toString().includes(query),
+      );
+    }
+
+    return releases;
+  }
+
+  // Computed: available major versions for display
+  get availableMajorVersions(): number[] {
+    if (!this.javaCatalog) return [];
+    let versions = [...this.javaCatalog.available_major_versions];
+
+    // Filter by LTS if showOnlyRecommended is enabled
+    if (this.showOnlyRecommended) {
+      versions = versions.filter((v) => this.javaCatalog!.lts_versions.includes(v));
+    }
+
+    // Sort descending (newest first)
+    return versions.sort((a, b) => b - a);
+  }
+
+  // Get installation status for a release: 'installed' | 'download'
+  getInstallStatus(release: JavaReleaseInfo): "installed" | "download" {
+    // Find installed Java that matches the major version and image type (by path pattern)
+    const matchingInstallations = this.javaInstallations.filter((inst) => {
+      // Check if this is a DropOut-managed Java (path contains temurin-XX-jre/jdk pattern)
+      const pathLower = inst.path.toLowerCase();
+      const pattern = `temurin-${release.major_version}-${release.image_type}`;
+      return pathLower.includes(pattern);
+    });
+
+    // If any matching installation exists, it's installed
+    return matchingInstallations.length > 0 ? "installed" : "download";
+  }
+
+  // Computed: selected release details
+  get selectedRelease(): JavaReleaseInfo | null {
+    if (!this.javaCatalog || this.selectedMajorVersion === null) return null;
+    return (
+      this.javaCatalog.releases.find(
+        (r) =>
+          r.major_version === this.selectedMajorVersion && r.image_type === this.selectedImageType,
+      ) || null
+    );
+  }
+
+  async loadSettings() {
+    try {
+      const result = await invoke<LauncherConfig>("get_settings");
+      this.settings = result;
+      // Force dark mode
+      if (this.settings.theme !== "dark") {
+        this.settings.theme = "dark";
+        this.saveSettings();
+      }
+      // Ensure custom_background_path is reactive
+      if (!this.settings.custom_background_path) {
+        this.settings.custom_background_path = undefined;
+      }
+    } catch (e) {
+      console.error("Failed to load settings:", e);
+    }
+  }
+
+  async saveSettings() {
+    try {
+      // Ensure we clean up any invalid paths before saving
+      if (this.settings.custom_background_path === "") {
+        this.settings.custom_background_path = undefined;
+      }
+
+      await invoke("save_settings", { config: this.settings });
+      uiState.setStatus("Settings saved!");
+    } catch (e) {
+      console.error("Failed to save settings:", e);
+      uiState.setStatus("Error saving settings: " + e);
+    }
+  }
+
+  async detectJava() {
+    this.isDetectingJava = true;
+    try {
+      this.javaInstallations = await invoke("detect_java");
+      if (this.javaInstallations.length === 0) {
+        uiState.setStatus("No Java installations found");
+      } else {
+        uiState.setStatus(`Found ${this.javaInstallations.length} Java installation(s)`);
+      }
+    } catch (e) {
+      console.error("Failed to detect Java:", e);
+      uiState.setStatus("Error detecting Java: " + e);
+    } finally {
+      this.isDetectingJava = false;
+    }
+  }
+
+  selectJava(path: string) {
+    this.settings.java_path = path;
+  }
+
+  async openJavaDownloadModal() {
+    this.showJavaDownloadModal = true;
+    this.javaDownloadStatus = "";
+    this.catalogError = "";
+    this.downloadProgress = null;
+
+    // Setup progress event listener
+    await this.setupProgressListener();
+
+    // Load catalog
+    await this.loadJavaCatalog(false);
+
+    // Check for pending downloads
+    await this.loadPendingDownloads();
+  }
+
+  async closeJavaDownloadModal() {
+    if (!this.isDownloadingJava) {
+      this.showJavaDownloadModal = false;
+      // Cleanup listener
+      if (this.progressUnlisten) {
+        this.progressUnlisten();
+        this.progressUnlisten = null;
+      }
+    }
+  }
+
+  private async setupProgressListener() {
+    if (this.progressUnlisten) {
+      this.progressUnlisten();
+    }
+
+    this.progressUnlisten = await listen<JavaDownloadProgress>(
+      "java-download-progress",
+      (event) => {
+        this.downloadProgress = event.payload;
+        this.javaDownloadStatus = event.payload.status;
+
+        if (event.payload.status === "Completed") {
+          this.isDownloadingJava = false;
+          setTimeout(async () => {
+            await this.detectJava();
+            uiState.setStatus(`Java installed successfully!`);
+          }, 500);
+        } else if (event.payload.status === "Error") {
+          this.isDownloadingJava = false;
+        }
+      },
+    );
+  }
+
+  async loadJavaCatalog(forceRefresh: boolean) {
+    this.isLoadingCatalog = true;
+    this.catalogError = "";
+
+    try {
+      const command = forceRefresh ? "refresh_java_catalog" : "fetch_java_catalog";
+      this.javaCatalog = await invoke<JavaCatalog>(command);
+
+      // Auto-select first LTS version
+      if (this.selectedMajorVersion === null && this.javaCatalog.lts_versions.length > 0) {
+        // Select most recent LTS (21 or highest)
+        const ltsVersions = [...this.javaCatalog.lts_versions].sort((a, b) => b - a);
+        this.selectedMajorVersion = ltsVersions[0];
+      }
+    } catch (e) {
+      console.error("Failed to load Java catalog:", e);
+      this.catalogError = `Failed to load Java catalog: ${e}`;
+    } finally {
+      this.isLoadingCatalog = false;
+    }
+  }
+
+  async refreshCatalog() {
+    await this.loadJavaCatalog(true);
+    uiState.setStatus("Java catalog refreshed");
+  }
+
+  async loadPendingDownloads() {
+    try {
+      this.pendingDownloads = await invoke<PendingJavaDownload[]>("get_pending_java_downloads");
+    } catch (e) {
+      console.error("Failed to load pending downloads:", e);
+    }
+  }
+
+  selectMajorVersion(version: number) {
+    this.selectedMajorVersion = version;
+  }
+
+  async downloadJava() {
+    if (!this.selectedRelease || !this.selectedRelease.is_available) {
+      uiState.setStatus("Selected Java version is not available for this platform");
+      return;
+    }
+
+    this.isDownloadingJava = true;
+    this.javaDownloadStatus = "Starting download...";
+    this.downloadProgress = null;
+
+    try {
+      const result: JavaInstallation = await invoke("download_adoptium_java", {
+        majorVersion: this.selectedMajorVersion,
+        imageType: this.selectedImageType,
+        customPath: null,
+      });
+
+      this.settings.java_path = result.path;
+      await this.detectJava();
+
+      setTimeout(() => {
+        this.showJavaDownloadModal = false;
+        uiState.setStatus(`Java ${this.selectedMajorVersion} is ready to use!`);
+      }, 1500);
+    } catch (e) {
+      console.error("Failed to download Java:", e);
+      this.javaDownloadStatus = `Download failed: ${e}`;
+    } finally {
+      this.isDownloadingJava = false;
+    }
+  }
+
+  async cancelDownload() {
+    try {
+      await invoke("cancel_java_download");
+      this.isDownloadingJava = false;
+      this.javaDownloadStatus = "Download cancelled";
+      this.downloadProgress = null;
+      await this.loadPendingDownloads();
+    } catch (e) {
+      console.error("Failed to cancel download:", e);
+    }
+  }
+
+  async resumeDownloads() {
+    if (this.pendingDownloads.length === 0) return;
+
+    this.isDownloadingJava = true;
+    this.javaDownloadStatus = "Resuming download...";
+
+    try {
+      const installed = await invoke<JavaInstallation[]>("resume_java_downloads");
+      if (installed.length > 0) {
+        this.settings.java_path = installed[0].path;
+        await this.detectJava();
+        uiState.setStatus(`Resumed and installed ${installed.length} Java version(s)`);
+      }
+      await this.loadPendingDownloads();
+    } catch (e) {
+      console.error("Failed to resume downloads:", e);
+      this.javaDownloadStatus = `Resume failed: ${e}`;
+    } finally {
+      this.isDownloadingJava = false;
+    }
+  }
+
+  // Format bytes to human readable
+  formatBytes(bytes: number): string {
+    if (bytes === 0) return "0 B";
+    const k = 1024;
+    const sizes = ["B", "KB", "MB", "GB"];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + " " + sizes[i];
+  }
+
+  // Format seconds to human readable
+  formatTime(seconds: number): string {
+    if (seconds === 0 || !isFinite(seconds)) return "--";
+    if (seconds < 60) return `${Math.round(seconds)}s`;
+    if (seconds < 3600) {
+      const mins = Math.floor(seconds / 60);
+      const secs = Math.round(seconds % 60);
+      return `${mins}m ${secs}s`;
+    }
+    const hours = Math.floor(seconds / 3600);
+    const mins = Math.floor((seconds % 3600) / 60);
+    return `${hours}h ${mins}m`;
+  }
+
+  // Format date string
+  formatDate(dateStr: string | null): string {
+    if (!dateStr) return "--";
+    try {
+      const date = new Date(dateStr);
+      return date.toLocaleDateString("en-US", {
+        year: "2-digit",
+        month: "2-digit",
+        day: "2-digit",
+      });
+    } catch {
+      return "--";
+    }
+  }
+
+  // Legacy compatibility
+  get availableJavaVersions(): number[] {
+    return this.availableMajorVersions;
+  }
+
+  // AI Model loading methods
+  async loadOllamaModels() {
+    this.isLoadingOllamaModels = true;
+    this.ollamaModelsError = "";
+
+    try {
+      const models = await invoke<ModelInfo[]>("list_ollama_models", {
+        endpoint: this.settings.assistant.ollama_endpoint,
+      });
+      this.ollamaModels = models;
+
+      // If no model is selected or selected model isn't available, select the first one
+      if (models.length > 0) {
+        const currentModel = this.settings.assistant.ollama_model;
+        const modelExists = models.some((m) => m.id === currentModel);
+        if (!modelExists) {
+          this.settings.assistant.ollama_model = models[0].id;
+        }
+      }
+    } catch (e) {
+      console.error("Failed to load Ollama models:", e);
+      this.ollamaModelsError = String(e);
+      this.ollamaModels = [];
+    } finally {
+      this.isLoadingOllamaModels = false;
+    }
+  }
+
+  async loadOpenaiModels() {
+    if (!this.settings.assistant.openai_api_key) {
+      this.openaiModelsError = "API key required";
+      this.openaiModels = [];
+      return;
+    }
+
+    this.isLoadingOpenaiModels = true;
+    this.openaiModelsError = "";
+
+    try {
+      const models = await invoke<ModelInfo[]>("list_openai_models");
+      this.openaiModels = models;
+
+      // If no model is selected or selected model isn't available, select the first one
+      if (models.length > 0) {
+        const currentModel = this.settings.assistant.openai_model;
+        const modelExists = models.some((m) => m.id === currentModel);
+        if (!modelExists) {
+          this.settings.assistant.openai_model = models[0].id;
+        }
+      }
+    } catch (e) {
+      console.error("Failed to load OpenAI models:", e);
+      this.openaiModelsError = String(e);
+      this.openaiModels = [];
+    } finally {
+      this.isLoadingOpenaiModels = false;
+    }
+  }
+
+  // Computed: get model options for current provider
+  get currentModelOptions(): { value: string; label: string; details?: string }[] {
+    const provider = this.settings.assistant.llm_provider;
+
+    if (provider === "ollama") {
+      if (this.ollamaModels.length === 0) {
+        // Return fallback options if no models loaded
+        return [
+          { value: "llama3", label: "Llama 3" },
+          { value: "llama3.1", label: "Llama 3.1" },
+          { value: "llama3.2", label: "Llama 3.2" },
+          { value: "mistral", label: "Mistral" },
+          { value: "gemma2", label: "Gemma 2" },
+          { value: "qwen2.5", label: "Qwen 2.5" },
+          { value: "phi3", label: "Phi-3" },
+          { value: "codellama", label: "Code Llama" },
+        ];
+      }
+      return this.ollamaModels.map((m) => ({
+        value: m.id,
+        label: m.name,
+        details: m.size ? `${m.size}${m.details ? ` - ${m.details}` : ""}` : m.details,
+      }));
+    } else if (provider === "openai") {
+      if (this.openaiModels.length === 0) {
+        // Return fallback options if no models loaded
+        return [
+          { value: "gpt-4o", label: "GPT-4o" },
+          { value: "gpt-4o-mini", label: "GPT-4o Mini" },
+          { value: "gpt-4-turbo", label: "GPT-4 Turbo" },
+          { value: "gpt-4", label: "GPT-4" },
+          { value: "gpt-3.5-turbo", label: "GPT-3.5 Turbo" },
+        ];
+      }
+      return this.openaiModels.map((m) => ({
+        value: m.id,
+        label: m.name,
+        details: m.details,
+      }));
+    }
+
+    return [];
+  }
+}
+
+export const settingsState = new SettingsState();
diff --git a/packages/ui/src/stores/ui.svelte.ts b/packages/ui/src/stores/ui.svelte.ts
new file mode 100644
index 0000000..e88f6b4
--- /dev/null
+++ b/packages/ui/src/stores/ui.svelte.ts
@@ -0,0 +1,32 @@
+import { type ViewType } from "../types";
+
+export class UIState {
+  currentView: ViewType = $state("home");
+  status = $state("Ready");
+  showConsole = $state(false);
+  appVersion = $state("...");
+
+  private statusTimeout: ReturnType<typeof setTimeout> | null = null;
+
+  setStatus(msg: string) {
+    if (this.statusTimeout) clearTimeout(this.statusTimeout);
+
+    this.status = msg;
+
+    if (msg !== "Ready") {
+      this.statusTimeout = setTimeout(() => {
+        this.status = "Ready";
+      }, 5000);
+    }
+  }
+
+  toggleConsole() {
+    this.showConsole = !this.showConsole;
+  }
+
+  setView(view: ViewType) {
+    this.currentView = view;
+  }
+}
+
+export const uiState = new UIState();
diff --git a/packages/ui/src/types/index.ts b/packages/ui/src/types/index.ts
new file mode 100644
index 0000000..b4412b8
--- /dev/null
+++ b/packages/ui/src/types/index.ts
@@ -0,0 +1,232 @@
+export type ViewType = "home" | "versions" | "settings" | "guide" | "instances";
+
+export interface Version {
+  id: string;
+  type: string;
+  url: string;
+  time: string;
+  releaseTime: string;
+  javaVersion?: number; // Java major version requirement (e.g., 8, 17, 21)
+  isInstalled?: boolean; // Whether this version is installed locally
+}
+
+export interface Account {
+  type: "Offline" | "Microsoft";
+  username: string;
+  uuid: string;
+  access_token?: string;
+  refresh_token?: string;
+  expires_at?: number; // Unix timestamp for Microsoft accounts
+}
+
+export interface DeviceCodeResponse {
+  user_code: string;
+  device_code: string;
+  verification_uri: string;
+  expires_in: number;
+  interval: number;
+  message?: string;
+}
+
+export interface AssistantConfig {
+  enabled: boolean;
+  llm_provider: "ollama" | "openai";
+  // Ollama settings
+  ollama_endpoint: string;
+  ollama_model: string;
+  // OpenAI settings
+  openai_api_key?: string;
+  openai_endpoint: string;
+  openai_model: string;
+  // Common settings
+  system_prompt: string;
+  response_language: string;
+  // TTS settings
+  tts_enabled: boolean;
+  tts_provider: string;
+}
+
+export interface ModelInfo {
+  id: string;
+  name: string;
+  size?: string;
+  details?: string;
+}
+
+export interface LauncherConfig {
+  min_memory: number;
+  max_memory: number;
+  java_path: string;
+  width: number;
+  height: number;
+  download_threads: number;
+  custom_background_path?: string;
+  enable_gpu_acceleration: boolean;
+  enable_visual_effects: boolean;
+  active_effect: string;
+  theme: string;
+  log_upload_service: "paste.rs" | "pastebin.com";
+  pastebin_api_key?: string;
+  assistant: AssistantConfig;
+  // Storage management
+  use_shared_caches: boolean;
+  keep_legacy_per_instance_storage: boolean;
+  // Feature-gated argument flags
+  feature_flags: FeatureFlags;
+}
+
+export interface FeatureFlags {
+  demo_user: boolean;
+  quick_play_enabled: boolean;
+  quick_play_path?: string;
+  quick_play_singleplayer: boolean;
+  quick_play_multiplayer_server?: string;
+}
+
+export interface JavaInstallation {
+  path: string;
+  version: string;
+  is_64bit: boolean;
+}
+
+export interface JavaDownloadInfo {
+  version: string;
+  release_name: string;
+  download_url: string;
+  file_name: string;
+  file_size: number;
+  checksum: string | null;
+  image_type: string;
+}
+
+export interface JavaReleaseInfo {
+  major_version: number;
+  image_type: string;
+  version: string;
+  release_name: string;
+  release_date: string | null;
+  file_size: number;
+  checksum: string | null;
+  download_url: string;
+  is_lts: boolean;
+  is_available: boolean;
+  architecture: string;
+}
+
+export interface JavaCatalog {
+  releases: JavaReleaseInfo[];
+  available_major_versions: number[];
+  lts_versions: number[];
+  cached_at: number;
+}
+
+export interface JavaDownloadProgress {
+  file_name: string;
+  downloaded_bytes: number;
+  total_bytes: number;
+  speed_bytes_per_sec: number;
+  eta_seconds: number;
+  status: string;
+  percentage: number;
+}
+
+export interface PendingJavaDownload {
+  major_version: number;
+  image_type: string;
+  download_url: string;
+  file_name: string;
+  file_size: number;
+  checksum: string | null;
+  install_path: string;
+  created_at: number;
+}
+
+export type JavaDownloadSource = "adoptium" | "mojang" | "azul";
+
+// ==================== Fabric Types ====================
+
+export interface FabricGameVersion {
+  version: string;
+  stable: boolean;
+}
+
+export interface FabricLoaderVersion {
+  separator: string;
+  build: number;
+  maven: string;
+  version: string;
+  stable: boolean;
+}
+
+export interface FabricLoaderEntry {
+  loader: FabricLoaderVersion;
+  intermediary: {
+    maven: string;
+    version: string;
+    stable: boolean;
+  };
+  launcherMeta: {
+    version: number;
+    mainClass: {
+      client: string;
+      server: string;
+    };
+  };
+}
+
+export interface InstalledFabricVersion {
+  id: string;
+  minecraft_version: string;
+  loader_version: string;
+  path: string;
+}
+
+// ==================== Forge Types ====================
+
+export interface ForgeVersion {
+  version: string;
+  minecraft_version: string;
+  recommended: boolean;
+  latest: boolean;
+}
+
+export interface InstalledForgeVersion {
+  id: string;
+  minecraft_version: string;
+  forge_version: string;
+  path: string;
+}
+
+// ==================== Mod Loader Type ====================
+
+export type ModLoaderType = "vanilla" | "fabric" | "forge";
+
+// ==================== Instance Types ====================
+
+export interface Instance {
+  id: string;
+  name: string;
+  game_dir: string;
+  version_id?: string;
+  created_at: number;
+  last_played?: number;
+  icon_path?: string;
+  notes?: string;
+  mod_loader?: string;
+  mod_loader_version?: string;
+  jvm_args_override?: string;
+  memory_override?: MemoryOverride;
+}
+
+export interface MemoryOverride {
+  min: number; // MB
+  max: number; // MB
+}
+
+export interface FileInfo {
+  name: string;
+  path: string;
+  is_directory: boolean;
+  size: number;
+  modified: number;
+}
diff --git a/packages/ui/svelte.config.js b/packages/ui/svelte.config.js
new file mode 100644
index 0000000..a710f1b
--- /dev/null
+++ b/packages/ui/svelte.config.js
@@ -0,0 +1,8 @@
+import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";
+
+/** @type {import("@sveltejs/vite-plugin-svelte").SvelteConfig} */
+export default {
+  // Consult https://svelte.dev/docs#compile-time-svelte-preprocess
+  // for more information about preprocessors
+  preprocess: vitePreprocess(),
+};
diff --git a/packages/ui/tsconfig.app.json b/packages/ui/tsconfig.app.json
new file mode 100644
index 0000000..addb46d
--- /dev/null
+++ b/packages/ui/tsconfig.app.json
@@ -0,0 +1,22 @@
+{
+  "extends": "@tsconfig/svelte/tsconfig.json",
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
+    "target": "ES2022",
+    "useDefineForClassFields": true,
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "types": ["svelte", "vite/client"],
+    "noEmit": true,
+    /**
+     * Typecheck JS in `.svelte` and `.js` files by default.
+     * Disable checkJs if you'd like to use dynamic types in JS.
+     * Note that setting allowJs false does not prevent the use
+     * of JS in `.svelte` files.
+     */
+    "allowJs": true,
+    "checkJs": true,
+    "moduleDetection": "force"
+  },
+  "include": ["src/**/*.ts", "src/**/*.js", "src/**/*.svelte"]
+}
diff --git a/packages/ui/tsconfig.json b/packages/ui/tsconfig.json
new file mode 100644
index 0000000..d32ff68
--- /dev/null
+++ b/packages/ui/tsconfig.json
@@ -0,0 +1,4 @@
+{
+  "files": [],
+  "references": [{ "path": "./tsconfig.app.json" }, { "path": "./tsconfig.node.json" }]
+}
diff --git a/packages/ui/tsconfig.node.json b/packages/ui/tsconfig.node.json
new file mode 100644
index 0000000..8a67f62
--- /dev/null
+++ b/packages/ui/tsconfig.node.json
@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "target": "ES2023",
+    "lib": ["ES2023"],
+    "module": "ESNext",
+    "types": ["node"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["vite.config.ts"]
+}
diff --git a/packages/ui/vite.config.ts b/packages/ui/vite.config.ts
new file mode 100644
index 0000000..32610e2
--- /dev/null
+++ b/packages/ui/vite.config.ts
@@ -0,0 +1,26 @@
+import { defineConfig } from "vite";
+import { svelte } from "@sveltejs/vite-plugin-svelte";
+import tailwindcss from "@tailwindcss/vite";
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [tailwindcss(), svelte()],
+
+  // Fix for Tauri + Vite HMR
+  server: {
+    host: true,
+    strictPort: true,
+    hmr: {
+      protocol: "ws",
+      host: "localhost",
+      port: 5173,
+    },
+    watch: {
+      usePolling: true,
+    },
+  },
+
+  // Ensure compatibility with Tauri
+  clearScreen: false,
+  envPrefix: ["VITE_", "TAURI_"],
+});