Add polished UX: tabs, kinetic scroll, animations, search, typography

- Tabbed interface with duplicate detection, overflow scroll arrows,
  mouse wheel support, and animated enter/exit transitions
- Kinetic scrolling on right-mouse drag with iOS-style rubber band
  overscroll and damped spring snapback (content area and sidebar)
- Framer Motion animations on sidebar, context menu, drop zone,
  focus mode, tabs, and all modals
- Full-text search with real-time DOM highlighting and match navigation
- Custom OverlayScrollbars replacing native scrollbars
- Tauri native drag-and-drop replacing broken browser drag events
- UI scale control (View menu spinner) persisted to localStorage
- Content zoom (Ctrl+Scroll) and width adjustment (Shift+Scroll)
- Right-click context menu with copy, zoom-adjusted positioning,
  and boundary clamping
- Text selection preserved on right-click via visual overlay
- Focus mode hides title/menu bars with animated transitions
- Premium editorial typography: progressive heading color cascade,
  gradient-fade horizontal rules, accent-colored list markers,
  subtle persistent link underlines, refined blockquotes and code blocks
- Sidebar table of contents with "No headings" empty state
- Markdown breaks and typographer enabled
- New app icons and updated README with full feature documentation

.gitignore

@@ -12,6 +12,13 @@ dist
 dist-ssr
 *.local
 
+# Tauri build artifacts
+src-tauri/target/
+
+# Dev tool files
+icon-*.html
+nul
+
 # Editor directories and files
 .vscode/*
 !.vscode/extensions.json

README.md

@@ -7,78 +7,119 @@
   <img src="https://img.shields.io/badge/license-CC0-green" alt="License">
 </p>
 
-A beautiful, distraction-free markdown reader for Windows. Vesper renders your markdown files with elegant typography and a refined dark aesthetic inspired by iA Writer, giving you the ultimate reading experience.
+A beautiful, distraction-free markdown reader for Windows. Vesper renders your markdown files with premium editorial typography and a refined dark aesthetic, giving you the ultimate reading experience.
 
 ---
 
 ## Features
 
-### File Management
-- **Open Files** - Use the File menu or drag-and-drop markdown files directly onto the window
-- **Tabbed Interface** - Open multiple files in tabs and switch between them seamlessly
-- **Recent Files** - Files open in new tabs automatically
-- **Supported Formats** - `.md`, `.markdown`, and `.txt` files
+### Markdown Rendering
 
-### Reading Experience
-- **Premium Typography** - Carefully tuned typography with Inter font family for optimal readability
-- **Syntax Highlighting** - Code blocks are beautifully highlighted using highlight.js with a matching dark theme
-- **Markdown Extensions** - Full support for:
+- Full CommonMark support via **markdown-it** with extensions:
+  - Syntax highlighting for 190+ languages (highlight.js)
   - Task lists (checkboxes)
-  - Superscript and subscript
-  - Strikethrough and highlighting
-  - Tables with elegant styling
-  - Blockquotes with visual depth
+  - Superscript and subscript (`^text^`, `~text~`)
+  - ==Highlighted text== via `mark`
+  - Smart quotes, em-dashes, and ellipses (typographer)
+  - Line break preservation
+  - Auto-linking of URLs
+  - HTML passthrough
+- Premium dark-mode typography tuned for long-form reading:
+  - Inter Variable at 17px with 1.7 line-height
+  - ~65 character measure (680px max-width) for optimal readability
+  - Progressive heading color cascade (H1 near-white through H6 muted)
+  - Accent-colored list markers
+  - Gradient-fade horizontal rules
+  - Subtle persistent link underlines that intensify on hover
+  - Refined blockquote, table, and code block styling
+  - JetBrains Mono Variable for code at 14px with ligature support
+
+### Tabbed Interface
+
+- Open multiple documents in tabs
+- Duplicate detection: re-opening an already-open file switches to its existing tab instead of creating a duplicate
+- Animated tab enter/exit with layout transitions
+- Scroll arrows appear when tabs overflow the bar, with hold-to-scroll
+- Mouse wheel scrolling over the tab bar
+- New tabs automatically scroll into view
+- Close individual tabs with the X button or `Ctrl+W`
 
 ### Navigation
-- **Table of Contents Sidebar** - Automatically generated from markdown headings (H1-H6)
-- **Click-to-Navigate** - Click any heading in the sidebar to jump to that section
-- **Resizable Sidebar** - Drag the sidebar edge to resize it to your preference
 
-### Search
-- **In-Document Search** - Press `Ctrl+F` to search within the current document
-- **Match Navigation** - Navigate between matches with previous/next buttons
-- **Match Counter** - See how many matches were found
+- **Table of Contents sidebar** auto-generated from document headings (H1-H6), with indentation by level
+- Click any heading in the sidebar to smooth-scroll to that section
+- Sidebar opens even when a document has no headings (shows "No headings" message)
+- Resizable sidebar via drag handle
+- **Full-text search** (`Ctrl+F`) with real-time DOM highlighting, match counter, and Enter to cycle through matches
 
-### Window Controls
-- **Custom Frameless Window** - Sleek title bar with custom controls
-- **Window Controls** - Minimize, maximize/restore, and close buttons
-- **Draggable Title Area** - Drag the window by clicking the title bar
-- **Focus Mode** - Press `F11` to hide all UI chrome and focus purely on content
+### Reading Experience
 
-### Keyboard Shortcuts
+- **Focus Mode** (`F11`) hides the title bar and menu bar for immersive reading
+- **Content zoom** via `Ctrl+Scroll` (50%--200%)
+- **Content width** adjustment via `Shift+Scroll` (400px--1200px)
+- **UI scale** (50%--200%) with a spinner in the View menu, persisted across sessions via localStorage
+- **Kinetic scrolling** on right-mouse-button drag with iOS-style rubber band overscroll and damped spring snapback
+- **Custom scrollbars** via OverlayScrollbars -- thin, auto-hiding after 800ms, accent-colored on hover
+- Window state (size, position, maximized) remembered between sessions via `tauri-plugin-window-state`
+
+### File Handling
+
+- Open files via the File menu, `Ctrl+O` dialog, or drag-and-drop from Explorer
+- Supports `.md`, `.markdown`, and `.txt` files
+- Native Tauri drag-and-drop integration (receives real file system paths)
+
+### UI Details
+
+- Custom frameless title bar with minimize, maximize/restore, and close buttons
+- Draggable title area for window repositioning
+- Menu bar with File, View, and Help menus
+- Right-click context menu with: Copy (when text is selected), Open File, Toggle Search, Toggle Sidebar, Focus Mode, Keyboard Shortcuts, About, Exit
+- Text selection preserved visually on right-click via overlay rendering
+- Context menu stays within window bounds and respects UI zoom
+- All panels, modals, tabs, and menus animate with Framer Motion (slide, fade, scale)
+- Subtle noise texture overlay on the app background
+- Keyboard shortcuts modal listing all bindings
+
+---
+
+## Keyboard Shortcuts
 
 | Shortcut | Action |
-|----------|--------|
+|---|---|
 | `Ctrl+O` | Open file |
 | `Ctrl+W` | Close current tab |
 | `Ctrl+Q` | Exit application |
 | `Ctrl+F` | Toggle search |
 | `Ctrl+Shift+S` | Toggle sidebar |
 | `F11` | Toggle focus mode |
-| `Escape` | Close search or sidebar |
-
-### Context Menu
-Right-click anywhere in the content area for quick access to:
-- Open File
-- Find (search)
-- Toggle Sidebar
-- Focus Mode
-- Keyboard Shortcuts
-- About
+| `Escape` | Close search / sidebar |
+| `Ctrl+Scroll` | Zoom content in / out |
+| `Shift+Scroll` | Adjust content width |
 
 ---
 
 ## Installation
 
 ### Prerequisites
+
 - Windows 10 or later
-- WebView2 Runtime (usually pre-installed on Windows 10/11)
+- WebView2 Runtime (pre-installed on Windows 10/11)
 
 ### Download
-Download the latest release from the [Releases](https://github.com/yourusername/vesper/releases) page.
+
+Download the latest installer from the [Releases](https://github.com/yourusername/vesper/releases) page:
+
+- **NSIS installer** (`.exe`) -- recommended, includes uninstaller
+- **MSI installer** (`.msi`) -- alternative for enterprise/group policy deployment
+- **Portable exe** -- standalone `vesper.exe` with no installation required
 
 ### Build from Source
 
+**Prerequisites:**
+- [Node.js](https://nodejs.org/) v18+
+- [Rust](https://www.rust-lang.org/tools/install) (stable toolchain)
+- [Tauri v2 prerequisites](https://v2.tauri.app/start/prerequisites/)
+
 ```bash
 # Clone the repository
 git clone https://github.com/yourusername/vesper.git
@@ -87,98 +128,95 @@ cd vesper
 # Install dependencies
 npm install
 
-# Run in development mode
+# Run in development mode (hot-reload on localhost:1420)
 npm run tauri dev
 
 # Build for production
 npm run tauri build
 ```
 
+Build outputs:
+- `src-tauri/target/release/vesper.exe` -- portable executable
+- `src-tauri/target/release/bundle/msi/Vesper_1.0.0_x64_en-US.msi` -- MSI installer
+- `src-tauri/target/release/bundle/nsis/Vesper_1.0.0_x64-setup.exe` -- NSIS installer
+
 ---
 
 ## Technology Stack
 
-- **Framework**: [Tauri 2.0](https://tauri.app/) - Lightweight, secure desktop framework
-- **Frontend**: React 19 + TypeScript + Vite
-- **Styling**: Tailwind CSS v4 + daisyUI v5
-- **Markdown**: [markdown-it](https://github.com/markdown-it/markdown-it) with plugins
-- **Syntax Highlighting**: [highlight.js](https://highlightjs.org/)
-- **Animations**: [Framer Motion](https://www.framer.com/motion/)
-- **Icons**: [Lucide React](https://lucide.dev/)
+| Layer | Technology |
+|---|---|
+| Runtime | [Tauri v2](https://tauri.app/) (Rust + WebView2) |
+| Frontend | React 19, TypeScript, Vite 7 |
+| Styling | Tailwind CSS 4, DaisyUI 5, custom CSS |
+| Markdown | [markdown-it](https://github.com/markdown-it/markdown-it) with plugins (task-lists, sup, sub, mark) |
+| Syntax Highlighting | [highlight.js](https://highlightjs.org/) |
+| Animation | [Framer Motion](https://www.framer.com/motion/) |
+| Fonts | [Inter Variable](https://rsms.me/inter/), [JetBrains Mono Variable](https://www.jetbrains.com/lp/mono/) |
+| Icons | [Lucide React](https://lucide.dev/) |
+| Scrollbars | [OverlayScrollbars](https://kingsora.github.io/OverlayScrollbars/) |
+
+### Tauri Plugins
+
+- `tauri-plugin-dialog` -- native file open dialog
+- `tauri-plugin-fs` -- file system read access
+- `tauri-plugin-window-state` -- persist and restore window size, position, and maximized state
+- `tauri-plugin-opener` -- system default app launcher
 
 ---
 
 ## Design Philosophy
 
-Vesper was designed with these principles in mind:
-
-1. **Content First** - The reader is the primary focus. All UI elements can be hidden.
-2. **Typography Matters** - Reading should be comfortable. We use Inter with carefully tuned line heights (1.7), optimal line width (~65 characters), and generous whitespace.
-3. **Dark by Default** - The deep onyx base color (#282C33) reduces eye strain and looks professional.
-4. **Keyboard Driven** - Power users can do everything with keyboard shortcuts.
-5. **Minimalist Chrome** - The interface gets out of your way.
+1. **Content First** -- the reader is the primary focus; all UI chrome can be hidden
+2. **Typography Matters** -- Inter Variable at 17px, 1.7 line-height, ~65 character measure, generous whitespace
+3. **Dark by Default** -- deep onyx base color (#282C33) reduces eye strain
+4. **Keyboard Driven** -- every feature accessible via keyboard shortcuts
+5. **Minimalist Chrome** -- the interface gets out of your way
 
 ---
 
 ## Color Palette
 
 | Color | Hex | Usage |
-|-------|-----|-------|
+|---|---|---|
 | Base | `#282C33` | Main window background |
-| Surface | `#2D323B` | Elevated elements, cards |
-| Overlay | `#333942` | Dropdowns, modals |
+| Surface | `#252A31` | Title bar, sidebar |
+| Elevated | `#2D333C` | Active tab, modals |
+| Overlay | `#333942` | Dropdowns, context menu |
 | Text Primary | `#E4E6EB` | Main content |
-| Text Secondary | `#ABB0B8` | UI labels |
-| Accent | `#6B8AFF` | Links, highlights |
+| Text Secondary | `#ABB0B8` | UI labels, muted text |
+| Text Tertiary | `#6B7280` | Placeholders, hints |
+| Accent | `#6B8AFF` | Interactive elements, highlights |
+| Link | `#7CA9F7` | Hyperlinks |
 
 ---
 
 ## Project Structure
 
 ```
-vesper/
-├── src/
-│   ├── App.tsx          # Main application component
-│   ├── main.tsx        # Entry point
-│   └── styles.css      # All styling
-├── src-tauri/
-│   ├── src/
-│   │   └── main.rs     # Rust backend
-│   ├── Cargo.toml
-│   └── tauri.conf.json # Tauri configuration
-├── index.html
-├── package.json
-└── README.md
+md-reader/
+  src/
+    App.tsx            # Main application component (all UI logic)
+    main.tsx           # React entry point
+    styles.css         # All styles -- variables, UI components, markdown typography
+  src-tauri/
+    src/
+      main.rs          # Rust entry point
+      lib.rs           # Tauri builder and plugin registration
+    tauri.conf.json    # Tauri window, bundle, and build configuration
+    Cargo.toml         # Rust dependencies
+    icons/             # App icons (ICO, PNG, ICNS)
+  index.html
+  package.json
+  vite.config.ts
+  tsconfig.json
 ```
 
 ---
 
-## Keyboard Accessibility
-
-Vesper is fully keyboard accessible. Every feature can be accessed without a mouse:
-
-- **Menu Navigation** - Use the menu bar with keyboard
-- **Tab Switching** - Close tabs with `Ctrl+W`
-- **Search** - Find text with `Ctrl+F`
-- **Focus Mode** - Immerse yourself with `F11`
-
----
-
-## Contributing
-
-Contributions are welcome! Please feel free to submit a Pull Request.
-
-1. Fork the repository
-2. Create your feature branch (`git checkout -b feature/amazing-feature`)
-3. Commit your changes (`git commit -m 'Add some amazing feature'`)
-4. Push to the branch (`git push origin feature/amazing-feature`)
-5. Open a Pull Request
-
----
-
 ## License
 
-This project is dedicated to the public domain under the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication - see the [LICENSE](LICENSE) file for details.
+This project is dedicated to the public domain under the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication -- see the [LICENSE](LICENSE) file for details.
 
 ---
 
@@ -187,4 +225,4 @@ This project is dedicated to the public domain under the CC0 1.0 Universal (CC0
 - [iA Writer](https://ia.net/writer) for design inspiration
 - [Tauri](https://tauri.app/) for the excellent desktop framework
 - [markdown-it](https://github.com/markdown-it/markdown-it) for robust markdown parsing
-- [highlight.js](https://highlightjs.org/) for beautiful code syntax
+- [highlight.js](https://highlightjs.org/) for syntax highlighting

package.json

@@ -1,42 +1 @@
-{
-"name": "vesper",
-  "private": true,
-  "version": "1.0.0",
-  "type": "module",
-  "scripts": {
-    "dev": "vite",
-    "build": "tsc && vite build",
-    "preview": "vite preview",
-    "tauri": "tauri"
-  },
-  "dependencies": {
-    "@tailwindcss/typography": "^0.5.19",
-    "@tailwindcss/vite": "^4.1.18",
-    "@tauri-apps/api": "^2",
-    "@tauri-apps/plugin-dialog": "^2.6.0",
-    "@tauri-apps/plugin-fs": "^2.4.5",
-    "@tauri-apps/plugin-opener": "^2",
-    "@tauri-apps/plugin-window-state": "^2.4.1",
-    "daisyui": "^5.5.18",
-    "framer-motion": "^12.34.0",
-"highlight.js": "^11.11.1",
-    "lucide-react": "^0.564.0",
-    "markdown-it": "^14.1.1",
-    "markdown-it-mark": "^4.0.0",
-    "markdown-it-sub": "^2.0.0",
-    "markdown-it-sup": "^2.0.0",
-    "markdown-it-task-lists": "^2.1.1",
-    "react": "^19.1.0",
-    "react-dom": "^19.1.0",
-    "tailwindcss": "^4.1.18"
-  },
-  "devDependencies": {
-    "@tauri-apps/cli": "^2",
-    "@types/markdown-it": "^14.1.2",
-    "@types/react": "^19.1.8",
-    "@types/react-dom": "^19.1.6",
-    "@vitejs/plugin-react": "^4.6.0",
-    "typescript": "~5.8.3",
-    "vite": "^7.0.4"
-  }
-}
+{"name":"vesper","private":true,"version":"1.0.0","type":"module","scripts":{"dev":"vite","build":"tsc && vite build","preview":"vite preview","tauri":"tauri"},"dependencies":{"@fontsource-variable/inter":"^5.2.8","@fontsource-variable/jetbrains-mono":"^5.2.8","@tailwindcss/typography":"^0.5.19","@tailwindcss/vite":"^4.1.18","@tauri-apps/api":"^2","@tauri-apps/plugin-dialog":"^2.6.0","@tauri-apps/plugin-fs":"^2.4.5","@tauri-apps/plugin-opener":"^2","@tauri-apps/plugin-window-state":"^2.4.1","daisyui":"^5.5.18","framer-motion":"^12.34.0","highlight.js":"^11.11.1","lucide-react":"^0.564.0","markdown-it":"^14.1.1","markdown-it-mark":"^4.0.0","markdown-it-sub":"^2.0.0","markdown-it-sup":"^2.0.0","markdown-it-task-lists":"^2.1.1","overlayscrollbars":"^2.14.0","overlayscrollbars-react":"^0.5.6","react":"^19.1.0","react-dom":"^19.1.0","tailwindcss":"^4.1.18"},"devDependencies":{"@tauri-apps/cli":"^2","@types/markdown-it":"^14.1.2","@types/react":"^19.1.8","@types/react-dom":"^19.1.6","@vitejs/plugin-react":"^4.6.0","png-to-ico":"^3.0.1","puppeteer-core":"^24.37.3","sharp":"^0.34.5","typescript":"~5.8.3","vite":"^7.0.4"}}

src-tauri/Cargo.lock

@@ -596,20 +596,6 @@ dependencies = [
  "syn 2.0.115",
 ]
 
-[[package]]
-name = "darkmark"
-version = "0.1.0"
-dependencies = [
- "serde",
- "serde_json",
- "tauri",
- "tauri-build",
- "tauri-plugin-dialog",
- "tauri-plugin-fs",
- "tauri-plugin-opener",
- "tauri-plugin-window-state",
-]
-
 [[package]]
 name = "darling"
 version = "0.21.3"
@@ -4308,6 +4294,20 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "vesper"
+version = "0.1.0"
+dependencies = [
+ "serde",
+ "serde_json",
+ "tauri",
+ "tauri-build",
+ "tauri-plugin-dialog",
+ "tauri-plugin-fs",
+ "tauri-plugin-opener",
+ "tauri-plugin-window-state",
+]
+
 [[package]]
 name = "vswhom"
 version = "0.1.0"

src-tauri/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "darkmark"
+name = "vesper"
 version = "0.1.0"
 description = "A beautiful markdown reader"
 authors = ["you"]
@@ -8,7 +8,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [lib]
-name = "darkmark_lib"
+name = "vesper_lib"
 crate-type = ["staticlib", "cdylib", "rlib"]
 
 [build-dependencies]

src-tauri/src/main.rs

@@ -2,5 +2,5 @@
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
 fn main() {
-    darkmark_lib::run()
+    vesper_lib::run()
 }

src-tauri/tauri.conf.json

@@ -21,7 +21,7 @@
         "transparent": false,
         "resizable": true,
         "center": true,
-        "dragDropEnabled": false
+        "dragDropEnabled": true
       }
     ],
     "security": {

src/main.tsx

@@ -3,15 +3,8 @@ import ReactDOM from "react-dom/client";
 import App from "./App";
 import "./styles.css";
 
-console.log("main.tsx loading...");
-
-try {
-  ReactDOM.createRoot(document.getElementById("root")!).render(
-    <React.StrictMode>
-      <App />
-    </React.StrictMode>,
-  );
-  console.log("React rendered successfully");
-} catch (e) {
-  console.error("Error rendering:", e);
-}
+ReactDOM.createRoot(document.getElementById("root")!).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+);

src/styles.css

@@ -1,10 +1,11 @@
-@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
+@import "@fontsource-variable/inter";
+@import "@fontsource-variable/jetbrains-mono";
 @import "tailwindcss";
 @plugin "daisyui";
 @plugin "@tailwindcss/typography";
 
 @plugin "daisyui/theme" {
-  name: "darkmark";
+  name: "vesper";
   default: true;
   prefersdark: true;
   
@@ -69,7 +70,7 @@
   --color-border-strong: rgba(255, 255, 255, 0.12);
   
   /* Typography */
-  font-family: 'Inter', -apple-system, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
+  font-family: 'Inter Variable', 'Inter', -apple-system, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
   font-size: 14px;
   line-height: 1.55;
   color: var(--color-text-primary);
@@ -239,6 +240,7 @@ html, body, #root {
   border-bottom: 1px solid var(--color-border-subtle);
   padding: 0 12px;
   gap: 2px;
+  overflow: hidden;
 }
 
 .menu-item {
@@ -259,6 +261,16 @@ html, body, #root {
   color: var(--color-text-primary);
 }
 
+/* Menu backdrop — invisible overlay to catch outside clicks */
+.menu-backdrop {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  z-index: 99;
+}
+
 /* Menu dropdown */
 .menu-dropdown {
   position: absolute;
@@ -321,6 +333,52 @@ html, body, #root {
   font-weight: 700;
 }
 
+/* Zoom spinner in View menu */
+.menu-dropdown-zoom {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 6px 12px;
+  color: var(--color-text-secondary);
+  font-size: 12px;
+  cursor: default;
+}
+
+.zoom-spinner {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+}
+
+.zoom-spinner-btn {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 22px;
+  height: 22px;
+  background: transparent;
+  border: 1px solid var(--color-border-subtle);
+  border-radius: var(--radius-sm);
+  color: var(--color-text-secondary);
+  cursor: pointer;
+  transition: all 0.15s ease;
+}
+
+.zoom-spinner-btn:hover {
+  background-color: var(--color-bg-hover);
+  color: var(--color-text-primary);
+  border-color: var(--color-text-disabled);
+}
+
+.zoom-spinner-value {
+  min-width: 38px;
+  text-align: center;
+  font-size: 11px;
+  font-weight: 500;
+  font-family: 'SF Mono', 'Menlo', monospace;
+  color: var(--color-text-primary);
+}
+
 /* Tab bar */
 .tab-bar {
   display: flex;
@@ -331,6 +389,32 @@ html, body, #root {
   overflow: hidden;
 }
 
+.tab-scroll-arrow {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 24px;
+  height: 100%;
+  background: transparent;
+  border: none;
+  color: var(--color-text-tertiary);
+  cursor: pointer;
+  flex-shrink: 0;
+  transition: all var(--transition-fast);
+  opacity: 0;
+  pointer-events: none;
+}
+
+.tab-scroll-arrow.visible {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.tab-scroll-arrow:hover {
+  color: var(--color-text-primary);
+  background-color: var(--color-bg-hover);
+}
+
 .tab-scroll-container {
   display: flex;
   align-items: center;
@@ -338,35 +422,30 @@ html, body, #root {
   overflow-x: auto;
   overflow-y: hidden;
   gap: 2px;
-  padding: 0 8px;
-  scrollbar-width: thin;
+  padding: 0 4px;
+  flex: 1;
+  min-width: 0;
+  scrollbar-width: none;
 }
 
 .tab-scroll-container::-webkit-scrollbar {
-  height: 4px;
-}
-
-.tab-scroll-container::-webkit-scrollbar-track {
-  background: transparent;
-}
-
-.tab-scroll-container::-webkit-scrollbar-thumb {
-  background: var(--color-border);
-  border-radius: 2px;
+  display: none;
 }
 
 .tab {
   display: flex;
   align-items: center;
-  gap: 8px;
+  gap: 6px;
   height: 30px;
-  padding: 0 14px;
+  padding: 0 12px;
   background: transparent;
   border: none;
   border-radius: var(--radius-md);
   color: var(--color-text-secondary);
   cursor: pointer;
   white-space: nowrap;
+  flex-shrink: 0;
+  overflow: hidden;
   transition: all var(--transition-fast);
 }
 
@@ -381,7 +460,6 @@ html, body, #root {
 }
 
 .tab-title {
-  max-width: 120px;
   overflow: hidden;
   text-overflow: ellipsis;
   font-size: 12px;
@@ -400,6 +478,7 @@ html, body, #root {
   color: var(--color-text-tertiary);
   cursor: pointer;
   opacity: 0;
+  flex-shrink: 0;
   transition: all var(--transition-fast);
 }
 
@@ -453,8 +532,6 @@ html, body, #root {
   min-height: 0;
   width: 100%;
   padding-bottom: 20px;
-  overflow-y: auto;
-  overflow-x: hidden;
 }
 
 .sidebar-resize-handle {
@@ -485,6 +562,13 @@ html, body, #root {
   z-index: 1;
 }
 
+.sidebar-empty {
+  padding: 12px 18px;
+  font-size: 12px;
+  color: var(--color-text-disabled);
+  font-style: italic;
+}
+
 .sidebar-item {
   display: block;
   width: 100%;
@@ -531,11 +615,9 @@ html, body, #root {
 }
 
 .content-area-scroll {
-  height: 100%;
+  min-height: 100%;
   padding: 48px 64px;
   box-sizing: border-box;
-  overflow-y: auto;
-  overflow-x: hidden;
 }
 
 /* Search bar */
@@ -614,7 +696,8 @@ html, body, #root {
   left: 0;
   right: 0;
   bottom: 0;
-  background-color: rgba(30, 33, 40, 0.92);
+  background-color: rgba(20, 22, 28, 0.88);
+  backdrop-filter: blur(8px);
   display: flex;
   align-items: center;
   justify-content: center;
@@ -625,30 +708,40 @@ html, body, #root {
   display: flex;
   flex-direction: column;
   align-items: center;
-  gap: 16px;
-  padding: 56px 80px;
-  border: 2px dashed var(--color-accent);
-  border-radius: var(--radius-lg);
-  background-color: var(--color-accent-subtle);
+  gap: 14px;
+  padding: 48px 72px;
+  border: 2px dashed rgba(107, 138, 255, 0.5);
+  border-radius: 16px;
+  background-color: rgba(107, 138, 255, 0.06);
+  box-shadow: 0 0 0 1px rgba(107, 138, 255, 0.1), 0 24px 64px rgba(0, 0, 0, 0.4);
 }
 
-.drop-zone-icon {
-  font-size: 48px;
+.drop-zone-icon-wrapper {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 72px;
+  height: 72px;
+  border-radius: 50%;
+  background: rgba(107, 138, 255, 0.1);
+  color: var(--color-accent);
+  margin-bottom: 4px;
 }
 
 .drop-zone-text {
-  font-size: 15px;
+  font-size: 16px;
   color: var(--color-text-primary);
-  font-weight: 500;
+  font-weight: 600;
+  letter-spacing: -0.01em;
 }
 
-/* Focus mode - hide title bar, tabs, and menu, but allow sidebar/search */
-.focus-mode .title-bar,
-.focus-mode .tab-bar,
-.focus-mode .menu-bar {
-  display: none !important;
+.drop-zone-hint {
+  font-size: 12px;
+  color: var(--color-text-tertiary);
+  font-weight: 450;
 }
 
+/* Focus mode - animated via framer-motion, extra padding for content */
 .focus-mode .content-area-scroll {
   padding: 64px 96px;
 }
@@ -662,7 +755,7 @@ html, body, #root {
   height: 100%;
   color: var(--color-text-secondary);
   text-align: center;
-  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
+  font-family: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
 }
 
 .welcome-icon {
@@ -768,6 +861,7 @@ html, body, #root {
   box-shadow: var(--shadow-modal);
   min-width: 360px;
   max-width: 480px;
+  width: 90vw;
   display: block;
   visibility: visible;
   opacity: 1;
@@ -778,6 +872,103 @@ html, body, #root {
   z-index: 10003 !important;
 }
 
+/* Shortcuts dialog — uses its own class to avoid DaisyUI .modal conflicts */
+.shortcuts-dialog {
+  background-color: var(--color-bg-elevated);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-lg);
+  box-shadow: var(--shadow-modal);
+  width: 640px;
+  max-width: 92vw;
+  max-height: 80vh;
+  overflow-y: auto;
+  position: relative;
+  z-index: 10003;
+}
+
+.shortcuts-dialog-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 20px 24px;
+  border-bottom: 1px solid var(--color-border-subtle);
+}
+
+.shortcuts-dialog-title {
+  font-size: 16px;
+  font-weight: 600;
+  color: var(--color-text-primary);
+}
+
+.shortcuts-dialog-close {
+  width: 28px;
+  height: 28px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: transparent;
+  border: none;
+  border-radius: var(--radius-sm);
+  color: var(--color-text-tertiary);
+  cursor: pointer;
+  transition: all var(--transition-fast);
+}
+
+.shortcuts-dialog-close:hover {
+  background-color: var(--color-bg-hover);
+  color: var(--color-text-primary);
+}
+
+.shortcuts-dialog-body {
+  padding: 24px;
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 24px 32px;
+}
+
+.shortcuts-dialog-group-title {
+  font-size: 11px;
+  font-weight: 600;
+  color: var(--color-accent);
+  text-transform: uppercase;
+  letter-spacing: 0.08em;
+  margin-bottom: 12px;
+  padding-bottom: 8px;
+  border-bottom: 1px solid var(--color-border-subtle);
+}
+
+.shortcuts-dialog-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 7px 0;
+  font-size: 13px;
+  color: var(--color-text-secondary);
+  gap: 16px;
+}
+
+.shortcuts-dialog-item kbd {
+  font-family: 'JetBrains Mono Variable', 'SF Mono', 'Menlo', monospace;
+  font-size: 11px;
+  padding: 4px 10px;
+  background-color: var(--color-bg-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-sm);
+  color: var(--color-text-primary);
+  white-space: nowrap;
+  flex-shrink: 0;
+}
+
+.shortcuts-dialog-nav-grid {
+  grid-column: 1 / -1;
+}
+
+.shortcuts-dialog-nav-grid .shortcuts-dialog-items-row {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 0 32px;
+}
+
 .modal-header {
   display: flex;
   align-items: center;
@@ -873,6 +1064,24 @@ html, body, #root {
   margin-bottom: 8px;
 }
 
+.shortcut {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 6px 0;
+  font-size: 13px;
+  color: var(--color-text-secondary);
+}
+
+.shortcut kbd {
+  font-family: 'SF Mono', 'Menlo', monospace;
+  font-size: 11px;
+  padding: 3px 8px;
+  background-color: var(--color-bg-surface);
+  border-radius: var(--radius-sm);
+  color: var(--color-text-primary);
+}
+
 .shortcut-item {
   display: flex;
   align-items: center;
@@ -901,7 +1110,7 @@ html, body, #root {
   /* Premium typography settings */
   font-size: 17px;
   line-height: 1.7;
-  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
+  font-family: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
   font-weight: 400;
   letter-spacing: -0.01em;
   font-feature-settings: "liga" 1, "kern" 1, "calt" 1;
@@ -913,15 +1122,15 @@ html, body, #root {
   text-spacing-trim: trim-both;
 }
 
-/* Refined heading hierarchy */
+/* Refined heading hierarchy — progressive color cascade */
 .markdown-content h1,
 .markdown-content h2,
 .markdown-content h3,
 .markdown-content h4,
 .markdown-content h5,
 .markdown-content h6 {
-  color: var(--color-text-primary);
-  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
+  color: #F0F1F3;
+  font-family: 'Inter Variable', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
   font-weight: 600;
   line-height: 1.2;
   letter-spacing: -0.025em;
@@ -933,7 +1142,8 @@ html, body, #root {
 .markdown-content h1 {
   font-size: 2.35rem;
   font-weight: 700;
-  letter-spacing: -0.04em;
+  letter-spacing: -0.03em;
+  color: #F5F6F7;
   margin-top: 0;
   margin-bottom: 0.8em;
   padding-bottom: 0.55em;
@@ -942,6 +1152,7 @@ html, body, #root {
 
 .markdown-content h2 {
   font-size: 1.7rem;
+  color: #EDEEF0;
   margin-top: 1.85em;
   padding-bottom: 0.4em;
   border-bottom: 1px solid var(--color-border-subtle);
@@ -949,22 +1160,25 @@ html, body, #root {
 
 .markdown-content h3 {
   font-size: 1.3rem;
+  color: #E4E5E8;
 }
 
 .markdown-content h4 {
   font-size: 1.15rem;
   font-weight: 500;
+  color: #D8DADE;
 }
 
 .markdown-content h5 {
   font-size: 1rem;
   font-weight: 500;
+  color: #CBCED3;
 }
 
 .markdown-content h6 {
   font-size: 0.92rem;
   font-weight: 500;
-  color: var(--color-text-secondary);
+  color: #ABB0B8;
 }
 
 /* Paragraphs with refined spacing */
@@ -974,18 +1188,19 @@ html, body, #root {
   line-height: 1.7;
 }
 
-/* Links with subtle interaction */
+/* Links with subtle persistent underline */
 .markdown-content a {
   color: #7CA9F7;
-  text-decoration: none;
+  text-decoration: underline;
+  text-decoration-color: rgba(124, 169, 247, 0.3);
   text-underline-offset: 3px;
   text-decoration-thickness: 1px;
-  transition: all 0.2s ease;
+  transition: color 0.2s ease, text-decoration-color 0.2s ease;
 }
 
 .markdown-content a:hover {
   color: #93B8F9;
-  text-decoration: underline;
+  text-decoration-color: rgba(147, 184, 249, 0.7);
   text-decoration-thickness: 1.5px;
 }
 
@@ -1023,12 +1238,19 @@ html, body, #root {
   list-style-position: outside;
 }
 
-.markdown-content ol li::marker {
+.markdown-content li::marker {
   color: #7CA9F7;
+}
+
+.markdown-content ol li::marker {
   font-weight: 500;
   font-size: 0.9em;
 }
 
+.markdown-content ul li::marker {
+  font-size: 0.7em;
+}
+
 /* Fix ALL nested content inside list items - remove extra margins */
 .markdown-content li > p {
   margin-top: 0;
@@ -1098,18 +1320,17 @@ html, body, #root {
 .markdown-content blockquote {
   margin: 1.65em 0;
   padding: 1.1em 1.4em;
-  border-left: 5px solid #7CA9F7;
-  background-color: rgba(124, 169, 247, 0.05);
-  border-radius: 10px;
-  color: #A8ACB0;
+  border-left: 3px solid #7CA9F7;
+  background-color: rgba(124, 169, 247, 0.04);
+  border-radius: 0 8px 8px 0;
+  color: #B0B4B9;
   font-style: normal;
   line-height: 1.7;
-  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
 }
 
 .markdown-content blockquote p {
   margin-bottom: 0.5em;
-  color: #A8ACB0;
+  color: #B0B4B9;
 }
 
 .markdown-content blockquote p:last-child {
@@ -1118,13 +1339,13 @@ html, body, #root {
 
 /* Inline code */
 .markdown-content code:not(pre code) {
-  background-color: rgba(124, 169, 247, 0.12);
+  background-color: rgba(255, 255, 255, 0.06);
   padding: 0.22em 0.48em;
-  border-radius: 4px;
-  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
+  border-radius: 5px;
+  font-family: 'JetBrains Mono Variable', 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
   font-size: 0.88em;
   font-weight: 400;
-  color: #F79E7E;
+  color: #E0A88A;
   letter-spacing: -0.02em;
 }
 
@@ -1142,8 +1363,8 @@ html, body, #root {
 }
 
 .markdown-content pre code {
-  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
-  font-size: 13px;
+  font-family: 'JetBrains Mono Variable', 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
+  font-size: 14px;
   line-height: 1.7;
   color: #E4E6EB;
   background: none;
@@ -1257,12 +1478,12 @@ html, body, #root {
   background-color: rgba(124, 169, 247, 0.05);
 }
 
-/* Horizontal rule */
+/* Horizontal rule — gradient fade */
 .markdown-content hr {
   border: none;
   height: 1px;
-  background-color: var(--color-border);
-  margin: 2.2em 0;
+  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
+  margin: 2.5em 0;
 }
 
 /* Images */
@@ -1335,6 +1556,41 @@ html, body, #root {
   border-radius: 8px;
 }
 
+/* Search highlights — high specificity to override Tailwind reset */
+span.search-highlight {
+  background-color: rgba(251, 191, 36, 0.3) !important;
+  color: inherit !important;
+  border-radius: 2px;
+  padding: 1px 0;
+  transition: background-color 0.15s ease, outline-color 0.15s ease;
+}
+
+span.search-highlight.search-highlight-active {
+  background-color: rgba(251, 191, 36, 0.6) !important;
+  outline: 2px solid rgba(251, 191, 36, 0.7);
+  outline-offset: 1px;
+}
+
+/* OverlayScrollbars custom theme */
+.os-theme-dark {
+  --os-handle-bg: rgba(255, 255, 255, 0.12);
+  --os-handle-bg-hover: var(--color-accent);
+  --os-handle-bg-active: var(--color-accent-hover);
+  --os-size: 8px;
+  --os-handle-border-radius: 4px;
+  --os-padding-perpendicular: 2px;
+  --os-padding-axis: 2px;
+  --os-handle-interactive-area-offset: 4px;
+}
+
+.os-theme-dark .os-scrollbar {
+  transition: opacity 0.3s ease;
+}
+
+.os-theme-dark .os-scrollbar-handle {
+  transition: background-color 0.2s ease, opacity 0.2s ease;
+}
+
 /* Reduced motion */
 @media (prefers-reduced-motion: reduce) {
   *,

vite.config.ts

@@ -8,6 +8,9 @@ const host = process.env.TAURI_DEV_HOST;
 // https://vite.dev/config/
 export default defineConfig(async () => ({
   plugins: [react(), tailwindcss()],
+  build: {
+    chunkSizeWarningLimit: 1600,
+  },
 
   // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`
   //