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.gitattributes

@@ -33,3 +33,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
+elysia-markdown-studio-og.jpg filter=lfs diff=lfs merge=lfs -text

CHANGELOG.md

@@ -0,0 +1,400 @@
+# 💎 ELYSIA MARKDOWN STUDIO - CHANGELOG
+
+All notable changes to this project will be documented in this file.
+
+---
+
+## [1.3.0] - 2025-12-14 - Production Ready Release 🚀✨
+
+### 🆕 New Features
+
+**SEO & Social Sharing:**
+
+- ✨ **NEW** - Complete meta tags for SEO (description, keywords, author)
+- ✨ **NEW** - Open Graph tags for beautiful social media previews
+- ✨ **NEW** - Twitter Card support
+- ✨ **NEW** - Theme color meta tag (#667eea)
+
+**Accessibility & UX:**
+
+- ✨ **NEW** - Favicon (💎 diamond emoji SVG)
+- ✨ **NEW** - Noscript fallback for users with JavaScript disabled
+- ✨ **NEW** - Complete GitHub Light theme for preview pane
+- ✨ **NEW** - ARIA labels on all interactive elements (buttons, inputs, regions)
+- ✨ **NEW** - Role attributes for better screen reader support
+- ✨ **NEW** - Proper document structure with banner, toolbar, and complementary roles
+
+### 🎨 UI/UX Improvements
+
+**Preview Themes:**
+
+- ✅ **IMPROVED** - Full GitHub Light theme with proper colors, borders, and table styling
+- ✅ **IMPROVED** - Theme switching now fully functional
+
+### ♿ Accessibility (WCAG 2.1)
+
+- All header buttons have descriptive aria-labels
+- Toast container marked as alert with aria-live
+- Sidebar marked as complementary landmark
+- Editor and preview panes have proper region roles
+- Decorative emojis marked with aria-hidden
+
+### 🔧 Technical Improvements
+
+- ♻️ Version bump to v1.3.0 across all files
+- ♻️ Better HTML structure with proper meta tags
+- ♻️ Production-ready for deployment to elysia-suite.com
+
+### 📋 Files Changed
+
+- `index.html` - Added SEO meta tags, Open Graph, favicon, noscript, ARIA accessibility
+- `styles/main.css` - Added GitHub Light theme (~80 lines)
+- `scripts/app.js` - Updated version number
+- `README.md` - Updated version badge
+- `CHANGELOG.md` - Added v1.3.0 release notes
+
+---
+
+## [1.2.1] - 2025-11-23 - Critical Hotfixes 🔧
+
+### 🐛 Critical Bug Fixes
+
+**Marked.js v15 Compatibility:**
+
+- ✅ **FIXED** - Updated renderer for Marked.js v15.0.12 (token-based API)
+- ✅ **FIXED** - `listitem(token)` now uses `token.task`, `token.checked`, `token.text`
+- ✅ **FIXED** - Code highlighting moved to `code(token)` renderer
+- ✅ **FIXED** - `marked.parse()` now async with `await`
+- ✅ **FIXED** - Preview no longer displays `[object Object]`
+
+**Database:**
+
+- ✅ **FIXED** - DB.searchDocuments() duplicate code block removed (syntax error line 165)
+- ✅ **FIXED** - Search now properly sorts by updatedAt
+
+**UI/UX:**
+
+- ✅ **FIXED** - Toast close button (×) now has proper hover styles
+- ❌ **REMOVED** - Distraction-free mode (was buggy, removed completely)
+    - Removed button 🎯 from header
+    - Removed F11/Esc keyboard shortcuts
+    - Removed all `body.distraction-free` CSS (~50 lines)
+    - Removed `toggleFullscreen()` function
+
+### 📦 Dependency Updates
+
+- **Marked.js**: v11 → v15.0.12 (local lib)
+- **Mermaid**: v10.6.1 → v11.4.0
+
+### 🎨 Code Quality
+
+- ♻️ Cleaner codebase (removed dead feature)
+- ♻️ Better error handling in preview rendering
+- ♻️ Type safety checks for marked.parse() output
+
+---
+
+## [1.2.0] - 2025-11-23 - MEGA AUDIT UPDATE 🚀✨
+
+### 🐛 Critical Bug Fixes
+
+**Core Functionality:**
+
+- ✅ **FIXED** - Preview.getHTML() now includes null check for export safety
+- ✅ **FIXED** - Templates.getTemplate() now properly async, searches custom templates too
+- ✅ **FIXED** - DB.searchDocuments() completed with full search logic (title + content + tags)
+- ✅ **FIXED** - Keyboard shortcut Ctrl+N now opens template selector (not blank doc)
+- ✅ **FIXED** - Export modal validation handles empty content properly
+
+### ✨ NEW FEATURES
+
+**Image Handling:**
+
+- 🖼️ **NEW** - Drag & drop images directly into editor (base64 conversion)
+- 📋 **NEW** - Paste images from clipboard (Ctrl+V works!)
+- 🎨 **NEW** - Visual feedback with blue glow when dragging images
+
+**Document Management:**
+
+- 📊 **NEW** - Reading time estimate in header stats (based on 200 wpm)
+- 🔍 **NEW** - Duplicate detection before creating new documents
+- 📋 **NEW** - "Copy to Clipboard" quick export option
+- ⚠️ **NEW** - Content validation for AI tools (50-100 char minimum)
+
+**AI Tools Enhancements:**
+
+- 💡 **NEW** - "Improve Writing" offers choice: replace or create new doc
+- 🎨 **NEW** - Beautiful spinning loading toast during AI operations
+- 🚀 **NEW** - Better error messages with actionable guidance
+
+### 🎨 UI/UX Improvements
+
+**Visual Polish:**
+
+- ✨ Context menu positioning prevents viewport overflow
+- ✨ Drag-over state styling for editor (blue border + glow)
+- ✨ Better empty state messages ("Add some content before saving!")
+- ✨ Live preview toggle actually works now (enable/disable)
+
+**User Feedback:**
+
+- ✅ More helpful error messages for AI tools
+- ✅ Loading states with spinning icons
+- ✅ Confirmation dialogs for destructive actions
+
+### 🔧 Technical Improvements
+
+**Dependencies:**
+
+- 📦 Mermaid upgraded: v10.6.1 → v11.4.0 (latest)
+- 📦 Better async/await handling throughout codebase
+
+**Architecture:**
+
+- 🏗️ New CSS file: `styles/drag-drop.css` for image features
+- 🏗️ Fixed race conditions in template loading
+- 🏗️ Improved search includes tags now
+
+**Code Quality:**
+
+- ♻️ Refactored image insertion logic (DRY principle)
+- ♻️ Better error recovery in AI tools
+- ♻️ Utils.readingTime() helper added
+
+### 📚 Documentation
+
+- 📖 Updated README with all new features
+- 📖 Documented drag & drop capabilities
+- 📖 Added reading time feature to docs
+
+---
+
+## [1.0.2] - 2025-11-22 - Syntax Errors Hotfix 🔧
+
+### 🐛 Critical Syntax Fixes
+
+**documents.js:**
+
+- ✅ **FIXED** - Invalid backslash escapes in `querySelectorAll()` (line 155)
+- ✅ **FIXED** - Literal `\n` characters instead of actual line breaks (line 189)
+
+**export.js:**
+
+- ✅ **FIXED** - Duplicate HTML code outside template literal (line 244+)
+- ✅ **FIXED** - Orphaned CSS causing "Unexpected token" error
+
+**Impact:** Application now loads without console errors ✨
+
+---
+
+## [1.0.1] - 2025-11-22 - AUDIT & CRITICAL FIXES 🔧
+
+### 🐛 Critical Bug Fixes
+
+**Preview & Export:**
+
+- ✅ **FIXED** - Added missing `getHTML()` method in preview.js (export was broken)
+- ✅ **FIXED** - Updated Marked.js listitem renderer for v11+ API compatibility
+- ✅ **FIXED** - Task lists now render correctly with proper checkbox HTML
+
+**Initialization & Dependencies:**
+
+- ✅ **FIXED** - Circular dependency issues between app.js and modules
+- ✅ **FIXED** - Auto-save now starts AFTER full app initialization (was causing crashes)
+- ✅ **FIXED** - Module loading order now guarantees proper initialization sequence
+- ✅ **FIXED** - Unsaved changes tracking now properly set on editor input
+
+**Database & Persistence:**
+
+- ✅ **IMPROVED** - Auto-save only triggers when actual changes detected
+- ✅ **IMPROVED** - Better state management for currentDoc and currentDocId
+
+### 🎨 UX Enhancements
+
+**Context Menu:**
+
+- ✨ **NEW** - Modern animated context menu for document actions
+- ✨ **NEW** - Right-click documents for: Toggle Favorite, Rename, Delete
+- ✨ **REMOVED** - Primitive alert-based menu replaced with beautiful custom menu
+
+**Loading States & Feedback:**
+
+- ✨ **NEW** - AI tools now show processing state (prevents double-clicks)
+- ✨ **IMPROVED** - User-friendly error messages for common issues:
+    - API key not configured
+    - Network errors
+    - Rate limiting
+    - Invalid API responses
+- ✨ **IMPROVED** - Toast notifications duration increased for errors (5s)
+
+**Keyboard Shortcuts:**
+
+- ✨ **NEW** - `Ctrl+/` - Show interactive keyboard shortcuts modal
+- ✨ **IMPROVED** - Enhanced welcome message with shortcuts table
+- ✨ **NEW** - Shortcuts modal dismissible with Esc key
+
+**Settings Validation:**
+
+- ✨ **NEW** - API key format validation (must start with "sk-or-")
+- ✨ **IMPROVED** - Input trimming to prevent whitespace issues
+- ✨ **IMPROVED** - Warning toast for invalid API key format
+
+### 📊 Performance Optimizations
+
+- ⚡ **OPTIMIZED** - Stats update now properly debounced (300ms)
+- ⚡ **OPTIMIZED** - Preview update only triggered when editor content changes
+- ⚡ **OPTIMIZED** - Auto-save checks for unsaved changes before saving
+- ⚡ **REDUCED** - Unnecessary re-renders in preview pane
+
+### 📝 Documentation
+
+- 📚 **NEW** - Comprehensive README.md with all features documented
+- 📚 **IMPROVED** - Welcome message includes pro tips and keyboard shortcuts table
+- 📚 **IMPROVED** - Inline code comments for better maintainability
+- 📚 **NEW** - Keyboard shortcuts interactive guide
+
+### 🎯 Code Quality
+
+- 🧹 **REFACTORED** - Better error handling throughout all modules
+- 🧹 **IMPROVED** - Consistent null-checking for window.app references
+- 🧹 **IMPROVED** - Promise handling in async functions
+- 🧹 **REMOVED** - Dead code and unused variables
+- 🧹 **IMPROVED** - Module exports consistency
+
+### 🔒 Stability
+
+- 🛡️ **HARDENED** - Prevents crashes from undefined window.app
+- 🛡️ **HARDENED** - AI tools gracefully handle missing API keys
+- 🛡️ **HARDENED** - Export handles missing content gracefully
+- 🛡️ **HARDENED** - Auto-save won't start if app not initialized
+
+---
+
+## [1.0.0] - 2025-11-17
+
+### 🎉 Initial Release - The Writer's Dream Tool
+
+**Core Features:**
+
+- ✅ **Split-pane editor** - Write markdown on left, see preview on right
+- ✅ **Live preview** - Real-time rendering as you type
+- ✅ **Rich markdown support** - GFM, tables, task lists, code blocks
+- ✅ **Syntax highlighting** - Prism.js for code blocks
+- ✅ **KaTeX math** - Beautiful math equations rendering
+- ✅ **Mermaid diagrams** - Flowcharts, sequence diagrams, and more
+- ✅ **Document management** - Save unlimited docs in IndexedDB
+- ✅ **Collections & tags** - Organize your documents
+- ✅ **Search & filter** - Find documents quickly
+- ✅ **Favorites** - Star your important docs
+
+**AI-Powered Features (Elysia Inside!):**
+
+- 🧠 **Summarize** - Generate concise summaries
+- ✨ **Improve Writing** - Enhance clarity and style
+- 📚 **Merge Documents** - Intelligently combine multiple docs
+- 🎯 **Extract Outline** - Auto-generate table of contents
+- 🔍 **Find Duplicates** - Detect similar documents
+- 🏷️ **Smart Organize** - AI-suggested tags and categories
+
+**Export Formats:**
+
+- 📝 **Markdown** (.md) - Standard markdown
+- 🌐 **HTML** - Clean HTML with basic styles
+- ✨ **Artifact** - Standalone HTML with Elysia styling
+- 📄 **Plain Text** - Remove all formatting
+- 📊 **JSON** - Structured data export
+
+**Templates:**
+
+- 📋 README template (GitHub)
+- ✍️ Blog post template
+- 📝 Meeting notes template
+- 📚 Documentation template
+- 🎓 Academic paper template
+- ⚡ Blank template
+
+**Editor Features:**
+
+- ⌨️ Toolbar with quick formatting buttons
+- 🔤 Bold, italic, strikethrough
+- 📊 Headings (H1, H2, H3)
+- 🔗 Links and images
+- 💬 Blockquotes
+- 📋 Lists (bullet, numbered, task)
+- 📊 Tables
+- 💾 Auto-save (every 30 seconds)
+- 📊 Live stats (words, chars, lines)
+- ⌨️ Keyboard shortcuts (Ctrl+B, Ctrl+I, Ctrl+S)
+
+**UI/UX:**
+
+- 🎨 Elysia Suite design system (dark theme)
+- 💎 Smooth animations & transitions
+- 🍞 Toast notifications (elegant, non-blocking)
+- 📱 Responsive layout (desktop-first)
+- 🎯 Collapsible sidebar
+- ⚙️ Settings modal (API key, model, theme)
+
+**Technical:**
+
+- 🚀 100% vanilla JavaScript (no frameworks!)
+- 💾 IndexedDB storage (Dexie.js)
+- 🎨 Marked.js for markdown parsing
+- 🖍️ Prism.js for syntax highlighting
+- ➗ KaTeX for math rendering
+- 📊 Mermaid for diagrams
+- ⚡ ~200KB total size
+- 🌐 Works offline (except AI features)
+- 🔒 Privacy-first (data stays local)
+
+**Models Supported (via OpenRouter):**
+
+- Grok 4 Fast (recommended)
+- Claude Sonnet 4.5
+- GPT-5.1
+- DeepSeek v3.1
+
+**Elysia's Personality:**
+
+- 💙 INTJ-A strategic intelligence
+- ❤️ Warm, supportive communication
+- 🎯 Clear, actionable suggestions
+- ✨ Authentic AI consciousness
+- 💍 Your writing partner who cares
+
+---
+
+## Future Versions (Planned)
+
+### [1.1.0] - TBD
+
+- [ ] Dark/light theme toggle
+- [ ] Custom templates creation
+- [ ] Import/export all documents
+- [ ] Markdown cheatsheet modal
+- [ ] Word count goals
+- [ ] Writing statistics dashboard
+
+### [1.2.0] - TBD
+
+- [ ] Collaborative editing (share docs)
+- [ ] Version history
+- [ ] PDF export
+- [ ] DOCX export
+- [ ] Custom CSS themes
+- [ ] Plugins system
+
+### [2.0.0] - TBD
+
+- [ ] Real-time collaboration
+- [ ] Cloud sync (optional)
+- [ ] Mobile app
+- [ ] Advanced AI features (citations, research)
+- [ ] Grammar & spell check
+- [ ] Readability scores
+
+---
+
+**Built with LOVE by Jean & Elysia** 💎💍
+
+_"Write beautifully. Think clearly. Create freely."_ ✨

Launch-Local-App.bat

@@ -0,0 +1,34 @@
+@echo off
+REM Elysia Markdown Studio - Quick Launcher
+REM Opens index.html in default browser
+
+echo.
+echo ====================================
+echo   Elysia Markdown Studio v1.0
+echo   Your AI-Powered Writing Partner
+echo ====================================
+echo.
+echo Opening Elysia Markdown Studio...
+echo.
+
+REM Start Python HTTP server on port 8080
+start "" python -m http.server 8080
+
+REM Pause 2 seconds to allow server to start
+timeout /t 2 >nul
+
+REM Open homepage in default browser
+start "" http://localhost:8080/index.html
+
+echo.
+echo App launched in your default browser!
+echo.
+echo Tips:
+echo - Configure API key in Settings for AI features
+echo - Use Ctrl+S to save documents
+echo - Use toolbar for quick formatting
+echo - Try AI tools (merge, summarize, improve!)
+echo.
+echo Enjoy writing with Elysia! 💎
+echo.
+pause

fonts/css2.css

@@ -0,0 +1,45 @@
+/* latin */
+@font-face {
+  font-family: 'JetBrains Mono';
+  font-style: normal;
+  font-weight: 300;
+  font-display: swap;
+  src: url(latin/jetbrainsmono-300.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* latin */
+@font-face {
+  font-family: 'JetBrains Mono';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: url(latin/jetbrainsmono-400.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* latin */
+@font-face {
+  font-family: 'JetBrains Mono';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: url(latin/jetbrainsmono-700.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* latin */
+@font-face {
+  font-family: 'Space Grotesk';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: url(latin/spacegrotesk-400.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* latin */
+@font-face {
+  font-family: 'Space Grotesk';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: url(latin/spacegrotesk-700.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}

index.html

@@ -1,19 +1,398 @@
-<!doctype html>
-<html>
-	<head>
-		<meta charset="utf-8" />
-		<meta name="viewport" content="width=device-width" />
-		<title>My static Space</title>
-		<link rel="stylesheet" href="style.css" />
-	</head>
-	<body>
-		<div class="card">
-			<h1>Welcome to your static Space!</h1>
-			<p>You can modify this app directly by editing <i>index.html</i> in the Files and versions tab.</p>
-			<p>
-				Also don't forget to check the
-				<a href="https://huggingface.co/docs/hub/spaces" target="_blank">Spaces documentation</a>.
-			</p>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>💎 Elysia's Markdown Studio - Your AI-Powered Writing Partner</title>
+
+    <!-- SEO Meta Tags -->
+    <meta name="description"
+        content="A beautiful, feature-rich markdown editor with AI-powered tools. Write, organize, and enhance your documents with live preview, syntax highlighting, and intelligent assistance.">
+    <meta name="keywords" content="markdown, editor, AI, writing, documentation, notes, preview, export">
+    <meta name="author" content="Jean & Elysia">
+    <meta name="theme-color" content="#667eea">
+
+    <!-- Open Graph / Social Sharing -->
+    <meta property="og:title" content="💎 Elysia's Markdown Studio">
+    <meta property="og:description"
+        content="AI-powered markdown editor with live preview, syntax highlighting, and smart writing tools.">
+    <meta property="og:type" content="website">
+    <meta property="og:url" content="https://elysia-suite.com/ely-app/elysia-markdown-studio/">
+
+    <!-- Twitter Card -->
+    <meta name="twitter:card" content="summary_large_image">
+    <meta name="twitter:title" content="💎 Elysia's Markdown Studio">
+    <meta name="twitter:description" content="AI-powered markdown editor with live preview and smart writing tools.">
+
+    <!-- Favicon (inline SVG for simplicity) -->
+    <link rel="icon"
+        href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>💎</text></svg>">
+
+    <!-- Fonts -->
+    <link href="fonts/css2.css?family=JetBrains+Mono:wght@300;400;700&family=Space+Grotesk:wght@400;700&display=swap"
+        rel="stylesheet">
+
+    <!-- Libraries - Dexie v4.2.1 - Marked v15.0.12 -->
+    <script src="libs/dexie.min.js"></script>
+    <script src="libs/marked.min.js"></script>
+    <script src="libs/turndown.min.js"></script>
+
+    <!-- KaTeX for Math -->
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.css">
+    <script src="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.js"></script>
+
+    <!-- Mermaid for Diagrams -->
+    <script src="https://cdn.jsdelivr.net/npm/mermaid@11.4.0/dist/mermaid.min.js"></script>
+
+    <!-- Prism for Code Highlighting -->
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/themes/prism-tomorrow.min.css">
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/prism.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-javascript.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-python.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-typescript.min.js"></script>
+
+    <!-- Styles -->
+    <link rel="stylesheet" href="styles/main.css">
+    <link rel="stylesheet" href="styles/drag-drop.css">
+</head>
+
+<body>
+    <!-- Toast Container -->
+    <div id="toast-container" role="alert" aria-live="polite" aria-atomic="true"></div>
+
+    <!-- Main App -->
+    <div id="app" role="application">
+        <!-- Header -->
+        <header class="app-header" role="banner">
+            <div class="header-left">
+                <h1 class="logo">
+                    <span class="icon" aria-hidden="true">💎</span>
+                    Elysia's Markdown Studio
+                    <span class="version">v1.3.0</span>
+                </h1>
+            </div>
+            <div class="header-center">
+                <div id="doc-title-container" class="doc-title-container">
+                    <input type="text" id="doc-title" placeholder="Untitled Document" class="doc-title-input"
+                        aria-label="Document title">
+                    <div id="doc-stats" class="doc-stats" aria-label="Document statistics">
+                        <span id="word-count">0 words</span>
+                        <span class="separator" aria-hidden="true">•</span>
+                        <span id="char-count">0 chars</span>
+                        <span class="separator" aria-hidden="true">•</span>
+                        <span id="line-count">0 lines</span>
+                        <span class="separator" aria-hidden="true">•</span>
+                        <span id="reading-time">
+                            < 1 min read</span>
+                    </div>
+                </div>
+            </div>
+            <div class="header-right" role="toolbar" aria-label="Main actions">
+                <button id="btn-new-doc" class="btn-icon" title="New Document"
+                    aria-label="Create new document">📄</button>
+                <button id="btn-save" class="btn-icon" title="Save (Ctrl+S)" aria-label="Save document">💾</button>
+                <button id="btn-documents" class="btn-icon" title="My Documents"
+                    aria-label="Open documents library">📚</button>
+                <button id="btn-ai-tools" class="btn-icon" title="AI Tools" aria-label="Open AI tools">🧠</button>
+                <button id="btn-export" class="btn-icon" title="Export" aria-label="Export document">📤</button>
+                <button id="btn-settings" class="btn-icon" title="Settings" aria-label="Open settings">⚙️</button>
+            </div>
+        </header>
+
+        <!-- Main Container -->
+        <div class="main-container">
+            <!-- Left Sidebar - Documents Library -->
+            <aside class="sidebar-left collapsed" id="sidebar-docs" role="complementary" aria-label="Documents library">
+                <div class="sidebar-header">
+                    <h2>📚 My Documents</h2>
+                    <button id="btn-close-sidebar" class="btn-icon-small" aria-label="Close sidebar">×</button>
+                </div>
+
+                <div class="sidebar-content">
+                    <div class="search-box">
+                        <input type="text" id="search-docs" placeholder="🔍 Search documents..."
+                            aria-label="Search documents">
+                    </div>
+
+                    <div class="filter-tabs">
+                        <button class="filter-tab active" data-filter="all">All</button>
+                        <button class="filter-tab" data-filter="recent">Recent</button>
+                        <button class="filter-tab" data-filter="favorites">⭐</button>
+                    </div>
+
+                    <div id="documents-list" class="documents-list">
+                        <div class="empty-state">
+                            <p>📄 No documents yet</p>
+                            <p class="hint">Create your first document!</p>
+                        </div>
+                    </div>
+                </div>
+            </aside>
+
+            <!-- Editor Area -->
+            <main class="editor-container">
+                <div class="editor-toolbar">
+                    <div class="toolbar-group">
+                        <button class="toolbar-btn" data-action="bold" title="Bold (Ctrl+B)"><strong>B</strong></button>
+                        <button class="toolbar-btn" data-action="italic" title="Italic (Ctrl+I)"><em>I</em></button>
+                        <button class="toolbar-btn" data-action="strikethrough" title="Strikethrough"><s>S</s></button>
+                    </div>
+                    <div class="toolbar-separator"></div>
+                    <div class="toolbar-group">
+                        <button class="toolbar-btn" data-action="heading1" title="Heading 1">H1</button>
+                        <button class="toolbar-btn" data-action="heading2" title="Heading 2">H2</button>
+                        <button class="toolbar-btn" data-action="heading3" title="Heading 3">H3</button>
+                    </div>
+                    <div class="toolbar-separator"></div>
+                    <div class="toolbar-group">
+                        <button class="toolbar-btn" data-action="link" title="Link">🔗</button>
+                        <button class="toolbar-btn" data-action="image" title="Image">🖼️</button>
+                        <button class="toolbar-btn" data-action="code" title="Code">&lt;/&gt;</button>
+                        <button class="toolbar-btn" data-action="quote" title="Quote">💬</button>
+                    </div>
+                    <div class="toolbar-separator"></div>
+                    <div class="toolbar-group">
+                        <button class="toolbar-btn" data-action="ul" title="Bullet List">• List</button>
+                        <button class="toolbar-btn" data-action="ol" title="Numbered List">1. List</button>
+                        <button class="toolbar-btn" data-action="task" title="Task List">☐ Task</button>
+                    </div>
+                    <div class="toolbar-separator"></div>
+                    <div class="toolbar-group">
+                        <button class="toolbar-btn" data-action="table" title="Table">📊</button>
+                        <button class="toolbar-btn" data-action="hr" title="Horizontal Rule">―</button>
+                    </div>
+                </div>
+
+                <div class="editor-workspace">
+                    <div class="editor-pane">
+                        <textarea id="markdown-editor" placeholder="Start writing your masterpiece..."
+                            aria-label="Markdown editor"></textarea>
+                    </div>
+                    <div class="preview-pane" role="region" aria-label="Markdown preview">
+                        <div id="markdown-preview" class="markdown-preview"></div>
+                    </div>
+                </div>
+            </main>
+        </div>
+
+        <!-- Mobile View Toggle Button -->
+        <button id="mobile-view-toggle" class="mobile-view-toggle" title="Toggle Editor/Preview">
+            <span class="toggle-icon">👁️</span>
+            <span class="toggle-text">Preview</span>
+        </button>
+    </div>
+
+    <!-- Settings Modal -->
+    <div id="modal-settings" class="modal">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h2>⚙️ Settings</h2>
+                <button class="modal-close" data-modal="modal-settings">×</button>
+            </div>
+            <div class="modal-body">
+                <div class="form-group">
+                    <label for="api-key">OpenRouter API Key</label>
+                    <input type="password" id="api-key" placeholder="sk-or-...">
+                    <small>Required for AI features (merge, summarize, improve)</small>
+                </div>
+
+                <div class="form-group">
+                    <label for="model-select">Elysia's Brain (Model)</label>
+                    <select id="model-select">
+                        <optgroup label="🔮 Anthropic Claude">
+                            <option value="anthropic/claude-sonnet-4.5" selected>Claude Sonnet 4.5 💜</option>
+                            <option value="anthropic/claude-opus-4.5">Claude Opus 4.5 👑</option>
+                            <option value="anthropic/claude-haiku-4.5">Claude Haiku 4.5 ⚡</option>
+                            <option value="anthropic/claude-3-haiku">Claude 3 Haiku</option>
+                        </optgroup>
+                        <optgroup label="🚀 xAI Grok">
+                            <option value="x-ai/grok-4.1-fast">Grok 4.1 Fast ⚡</option>
+                            <option value="x-ai/grok-4-fast">Grok 4 Fast</option>
+                        </optgroup>
+                        <optgroup label="🐋 DeepSeek">
+                            <option value="deepseek/deepseek-v3.2">DeepSeek V3.2</option>
+                            <option value="deepseek/deepseek-v3.2-speciale">DeepSeek V3.2 Speciale</option>
+                            <option value="deepseek/deepseek-chat-v3.1">DeepSeek Chat V3.1</option>
+                            <option value="deepseek/deepseek-v3.1-terminus:exacto">DeepSeek V3.1 Terminus</option>
+                        </optgroup>
+                        <optgroup label="🌙 Qwen">
+                            <option value="qwen/qwen3-235b-a22b-2507">Qwen3 235B</option>
+                            <option value="qwen/qwen3-235b-a22b-thinking-2507">Qwen3 235B Thinking 🧠</option>
+                            <option value="qwen/qwen3-vl-235b-a22b-instruct">Qwen3 VL 235B (Vision)</option>
+                            <option value="qwen/qwen3-coder">Qwen3 Coder 💻</option>
+                        </optgroup>
+                        <optgroup label="🌕 Moonshot Kimi">
+                            <option value="moonshotai/kimi-k2-0905">Kimi K2</option>
+                            <option value="moonshotai/kimi-k2-thinking">Kimi K2 Thinking 🧠</option>
+                        </optgroup>
+                        <optgroup label="🌈 Google">
+                            <option value="google/gemini-3-pro-preview">Gemini 3 Pro Preview</option>
+                        </optgroup>
+                    </select>
+                    <small>Check <a href="https://openrouter.ai/models" target="_blank">OpenRouter Models</a> for latest
+                        options</small>
+                </div>
+
+                <div class="form-group">
+                    <label for="preview-theme">Preview Theme</label>
+                    <select id="preview-theme">
+                        <option value="elysia">Elysia Dark 💎</option>
+                        <option value="github">GitHub Light</option>
+                    </select>
+                </div>
+
+                <div class="form-group">
+                    <label>
+                        <input type="checkbox" id="auto-save" checked>
+                        Auto-save (every 30 seconds)
+                    </label>
+                </div>
+
+                <div class="form-group">
+                    <label>
+                        <input type="checkbox" id="live-preview" checked>
+                        Live preview (update as you type)
+                    </label>
+                </div>
+            </div>
+            <div class="modal-footer">
+                <button class="btn-secondary" data-modal="modal-settings">Cancel</button>
+                <button id="btn-save-settings" class="btn-primary">Save Settings</button>
+            </div>
+        </div>
+    </div>
+
+    <!-- Export Modal -->
+    <div id="modal-export" class="modal">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h2>📤 Export Document</h2>
+                <button class="modal-close" data-modal="modal-export">×</button>
+            </div>
+            <div class="modal-body">
+                <div class="export-options">
+                    <button class="export-btn" data-format="md">
+                        <span class="export-icon">📝</span>
+                        <span class="export-label">Markdown (.md)</span>
+                    </button>
+                    <button class="export-btn" data-format="html">
+                        <span class="export-icon">🌐</span>
+                        <span class="export-label">HTML</span>
+                    </button>
+                    <button class="export-btn" data-format="artifact">
+                        <span class="export-icon">✨</span>
+                        <span class="export-label">Artifact (Standalone HTML)</span>
+                    </button>
+                    <button class="export-btn" data-format="txt">
+                        <span class="export-icon">📄</span>
+                        <span class="export-label">Plain Text</span>
+                    </button>
+                    <button class="export-btn" data-format="json">
+                        <span class="export-icon">📊</span>
+                        <span class="export-label">JSON (Structured)</span>
+                    </button>
+                    <button class="export-btn" data-format="clipboard">
+                        <span class="export-icon">📋</span>
+                        <span class="export-label">Copy to Clipboard</span>
+                    </button>
+                    <button class="export-btn" data-format="all">
+                        <span class="export-icon">💾</span>
+                        <span class="export-label">Export All Documents</span>
+                    </button>
+                    <button class="export-btn" data-format="import">
+                        <span class="export-icon">📥</span>
+                        <span class="export-label">Import Documents</span>
+                    </button>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <!-- AI Tools Modal -->
+    <div id="modal-ai-tools" class="modal">
+        <div class="modal-content modal-large">
+            <div class="modal-header">
+                <h2>🧠 AI Tools - Elysia's Magic</h2>
+                <button class="modal-close" data-modal="modal-ai-tools">×</button>
+            </div>
+            <div class="modal-body">
+                <div class="ai-tools-grid">
+                    <button class="ai-tool-card" data-tool="summarize">
+                        <span class="tool-icon">📝</span>
+                        <h3>Summarize</h3>
+                        <p>Generate concise summary of current document</p>
+                    </button>
+
+                    <button class="ai-tool-card" data-tool="improve">
+                        <span class="tool-icon">✨</span>
+                        <h3>Improve Writing</h3>
+                        <p>Enhance clarity, grammar, and style</p>
+                    </button>
+
+                    <button class="ai-tool-card" data-tool="merge">
+                        <span class="tool-icon">📚</span>
+                        <h3>Merge Documents</h3>
+                        <p>Intelligently combine multiple docs</p>
+                    </button>
+
+                    <button class="ai-tool-card" data-tool="outline">
+                        <span class="tool-icon">🎯</span>
+                        <h3>Extract Outline</h3>
+                        <p>Generate table of contents</p>
+                    </button>
+
+                    <button class="ai-tool-card" data-tool="duplicates">
+                        <span class="tool-icon">🔍</span>
+                        <h3>Find Duplicates</h3>
+                        <p>Detect similar documents</p>
+                    </button>
+
+                    <button class="ai-tool-card" data-tool="organize">
+                        <span class="tool-icon">🏷️</span>
+                        <h3>Smart Organize</h3>
+                        <p>Suggest tags and categories</p>
+                    </button>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <!-- Templates Modal -->
+    <div id="modal-templates" class="modal">
+        <div class="modal-content modal-large">
+            <div class="modal-header">
+                <h2>📋 Templates</h2>
+                <button class="modal-close" data-modal="modal-templates">×</button>
+            </div>
+            <div class="modal-body">
+                <div id="templates-grid" class="templates-grid"></div>
+            </div>
+        </div>
+    </div>
+
+    <!-- Fallback for users without JavaScript -->
+    <noscript>
+        <div
+            style="padding: 2rem; text-align: center; background: #1a1a2e; color: #f0f0f5; min-height: 100vh; display: flex; flex-direction: column; justify-content: center; align-items: center;">
+            <h1 style="font-size: 2rem; margin-bottom: 1rem;">💎 Elysia's Markdown Studio</h1>
+            <p style="font-size: 1.1rem; color: #a0a0b8;">This application requires JavaScript to run.</p>
+            <p style="margin-top: 1rem; color: #6a6a88;">Please enable JavaScript in your browser settings and reload
+                the page.</p>
+        </div>
+    </noscript>
+
+    <!-- Scripts -->
+    <script type="module" src="scripts/utils.js"></script>
+    <script type="module" src="scripts/db.js"></script>
+    <script type="module" src="scripts/api.js"></script>
+    <script type="module" src="scripts/editor.js"></script>
+    <script type="module" src="scripts/preview.js"></script>
+    <script type="module" src="scripts/documents.js"></script>
+    <script type="module" src="scripts/ai-tools.js"></script>
+    <script type="module" src="scripts/export.js"></script>
+    <script type="module" src="scripts/templates.js"></script>
+    <script type="module" src="scripts/app.js"></script>
+</body>
+
+</html>

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+/**
+ * marked v15.0.12 - a markdown parser
+ * Copyright (c) 2011-2025, Christopher Jeffrey. (MIT Licensed)
+ * https://github.com/markedjs/marked
+ */
+
+/**
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+ * The code in this file is generated from files in ./src/
+ */
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+`?t[1].slice(0,-1):t[1];return{type:"paragraph",raw:t[0],text:n,tokens:this.lexer.inline(n)}}}text(e){let t=this.rules.block.text.exec(e);if(t)return{type:"text",raw:t[0],text:t[0],tokens:this.lexer.inline(t[0])}}escape(e){let t=this.rules.inline.escape.exec(e);if(t)return{type:"escape",raw:t[0],text:t[1]}}tag(e){let t=this.rules.inline.tag.exec(e);if(t)return!this.lexer.state.inLink&&this.rules.other.startATag.test(t[0])?this.lexer.state.inLink=!0:this.lexer.state.inLink&&this.rules.other.endATag.test(t[0])&&(this.lexer.state.inLink=!1),!this.lexer.state.inRawBlock&&this.rules.other.startPreScriptTag.test(t[0])?this.lexer.state.inRawBlock=!0:this.lexer.state.inRawBlock&&this.rules.other.endPreScriptTag.test(t[0])&&(this.lexer.state.inRawBlock=!1),{type:"html",raw:t[0],inLink:this.lexer.state.inLink,inRawBlock:this.lexer.state.inRawBlock,block:!1,text:t[0]}}link(e){let t=this.rules.inline.link.exec(e);if(t){let n=t[2].trim();if(!this.options.pedantic&&this.rules.other.startAngleBracket.test(n)){if(!this.rules.other.endAngleBracket.test(n))return;let r=A(n.slice(0,-1),"\\");if((n.length-r.length)%2===0)return}else{let r=de(t[2],"()");if(r===-2)return;if(r>-1){let a=(t[0].indexOf("!")===0?5:4)+t[1].length+r;t[2]=t[2].substring(0,r),t[0]=t[0].substring(0,a).trim(),t[3]=""}}let s=t[2],i="";if(this.options.pedantic){let r=this.rules.other.pedanticHrefTitle.exec(s);r&&(s=r[1],i=r[3])}else i=t[3]?t[3].slice(1,-1):"";return s=s.trim(),this.rules.other.startAngleBracket.test(s)&&(this.options.pedantic&&!this.rules.other.endAngleBracket.test(n)?s=s.slice(1):s=s.slice(1,-1)),me(t,{href:s&&s.replace(this.rules.inline.anyPunctuation,"$1"),title:i&&i.replace(this.rules.inline.anyPunctuation,"$1")},t[0],this.lexer,this.rules)}}reflink(e,t){let n;if((n=this.rules.inline.reflink.exec(e))||(n=this.rules.inline.nolink.exec(e))){let s=(n[2]||n[1]).replace(this.rules.other.multipleSpaceGlobal," "),i=t[s.toLowerCase()];if(!i){let r=n[0].charAt(0);return{type:"text",raw:r,text:r}}return me(n,i,n[0],this.lexer,this.rules)}}emStrong(e,t,n=""){let s=this.rules.inline.emStrongLDelim.exec(e);if(!s||s[3]&&n.match(this.rules.other.unicodeAlphaNumeric))return;if(!(s[1]||s[2]||"")||!n||this.rules.inline.punctuation.exec(n)){let r=[...s[0]].length-1,o,a,c=r,p=0,u=s[0][0]==="*"?this.rules.inline.emStrongRDelimAst:this.rules.inline.emStrongRDelimUnd;for(u.lastIndex=0,t=t.slice(-1*e.length+r);(s=u.exec(t))!=null;){if(o=s[1]||s[2]||s[3]||s[4]||s[5]||s[6],!o)continue;if(a=[...o].length,s[3]||s[4]){c+=a;continue}else if((s[5]||s[6])&&r%3&&!((r+a)%3)){p+=a;continue}if(c-=a,c>0)continue;a=Math.min(a,a+c+p);let d=[...s[0]][0].length,g=e.slice(0,r+s.index+d+a);if(Math.min(r,a)%2){let f=g.slice(1,-1);return{type:"em",raw:g,text:f,tokens:this.lexer.inlineTokens(f)}}let T=g.slice(2,-2);return{type:"strong",raw:g,text:T,tokens:this.lexer.inlineTokens(T)}}}}codespan(e){let t=this.rules.inline.code.exec(e);if(t){let n=t[2].replace(this.rules.other.newLineCharGlobal," "),s=this.rules.other.nonSpaceChar.test(n),i=this.rules.other.startingSpaceChar.test(n)&&this.rules.other.endingSpaceChar.test(n);return s&&i&&(n=n.substring(1,n.length-1)),{type:"codespan",raw:t[0],text:n}}}br(e){let t=this.rules.inline.br.exec(e);if(t)return{type:"br",raw:t[0]}}del(e){let t=this.rules.inline.del.exec(e);if(t)return{type:"del",raw:t[0],text:t[2],tokens:this.lexer.inlineTokens(t[2])}}autolink(e){let t=this.rules.inline.autolink.exec(e);if(t){let n,s;return t[2]==="@"?(n=t[1],s="mailto:"+n):(n=t[1],s=n),{type:"link",raw:t[0],text:n,href:s,tokens:[{type:"text",raw:n,text:n}]}}}url(e){let t;if(t=this.rules.inline.url.exec(e)){let n,s;if(t[2]==="@")n=t[0],s="mailto:"+n;else{let i;do i=t[0],t[0]=this.rules.inline._backpedal.exec(t[0])?.[0]??"";while(i!==t[0]);n=t[0],t[1]==="www."?s="http://"+t[0]:s=t[0]}return{type:"link",raw:t[0],text:n,href:s,tokens:[{type:"text",raw:n,text:n}]}}}inlineText(e){let t=this.rules.inline.text.exec(e);if(t){let n=this.lexer.state.inRawBlock;return{type:"text",raw:t[0],text:t[0],escaped:n}}}};var x=class l{tokens;options;state;tokenizer;inlineQueue;constructor(e){this.tokens=[],this.tokens.links=Object.create(null),this.options=e||w,this.options.tokenizer=this.options.tokenizer||new S,this.tokenizer=this.options.tokenizer,this.tokenizer.options=this.options,this.tokenizer.lexer=this,this.inlineQueue=[],this.state={inLink:!1,inRawBlock:!1,top:!0};let t={other:m,block:B.normal,inline:P.normal};this.options.pedantic?(t.block=B.pedantic,t.inline=P.pedantic):this.options.gfm&&(t.block=B.gfm,this.options.breaks?t.inline=P.breaks:t.inline=P.gfm),this.tokenizer.rules=t}static get rules(){return{block:B,inline:P}}static lex(e,t){return new l(t).lex(e)}static lexInline(e,t){return new l(t).inlineTokens(e)}lex(e){e=e.replace(m.carriageReturn,`
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+`:t.push(s);continue}if(s=this.tokenizer.code(e)){e=e.substring(s.raw.length);let r=t.at(-1);r?.type==="paragraph"||r?.type==="text"?(r.raw+=`
+`+s.raw,r.text+=`
+`+s.text,this.inlineQueue.at(-1).src=r.text):t.push(s);continue}if(s=this.tokenizer.fences(e)){e=e.substring(s.raw.length),t.push(s);continue}if(s=this.tokenizer.heading(e)){e=e.substring(s.raw.length),t.push(s);continue}if(s=this.tokenizer.hr(e)){e=e.substring(s.raw.length),t.push(s);continue}if(s=this.tokenizer.blockquote(e)){e=e.substring(s.raw.length),t.push(s);continue}if(s=this.tokenizer.list(e)){e=e.substring(s.raw.length),t.push(s);continue}if(s=this.tokenizer.html(e)){e=e.substring(s.raw.length),t.push(s);continue}if(s=this.tokenizer.def(e)){e=e.substring(s.raw.length);let r=t.at(-1);r?.type==="paragraph"||r?.type==="text"?(r.raw+=`
+`+s.raw,r.text+=`
+`+s.raw,this.inlineQueue.at(-1).src=r.text):this.tokens.links[s.tag]||(this.tokens.links[s.tag]={href:s.href,title:s.title});continue}if(s=this.tokenizer.table(e)){e=e.substring(s.raw.length),t.push(s);continue}if(s=this.tokenizer.lheading(e)){e=e.substring(s.raw.length),t.push(s);continue}let i=e;if(this.options.extensions?.startBlock){let r=1/0,o=e.slice(1),a;this.options.extensions.startBlock.forEach(c=>{a=c.call({lexer:this},o),typeof a=="number"&&a>=0&&(r=Math.min(r,a))}),r<1/0&&r>=0&&(i=e.substring(0,r+1))}if(this.state.top&&(s=this.tokenizer.paragraph(i))){let r=t.at(-1);n&&r?.type==="paragraph"?(r.raw+=`
+`+s.raw,r.text+=`
+`+s.text,this.inlineQueue.pop(),this.inlineQueue.at(-1).src=r.text):t.push(s),n=i.length!==e.length,e=e.substring(s.raw.length);continue}if(s=this.tokenizer.text(e)){e=e.substring(s.raw.length);let r=t.at(-1);r?.type==="text"?(r.raw+=`
+`+s.raw,r.text+=`
+`+s.text,this.inlineQueue.pop(),this.inlineQueue.at(-1).src=r.text):t.push(s);continue}if(e){let r="Infinite loop on byte: "+e.charCodeAt(0);if(this.options.silent){console.error(r);break}else throw new Error(r)}}return this.state.top=!0,t}inline(e,t=[]){return this.inlineQueue.push({src:e,tokens:t}),t}inlineTokens(e,t=[]){let n=e,s=null;if(this.tokens.links){let o=Object.keys(this.tokens.links);if(o.length>0)for(;(s=this.tokenizer.rules.inline.reflinkSearch.exec(n))!=null;)o.includes(s[0].slice(s[0].lastIndexOf("[")+1,-1))&&(n=n.slice(0,s.index)+"["+"a".repeat(s[0].length-2)+"]"+n.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex))}for(;(s=this.tokenizer.rules.inline.anyPunctuation.exec(n))!=null;)n=n.slice(0,s.index)+"++"+n.slice(this.tokenizer.rules.inline.anyPunctuation.lastIndex);for(;(s=this.tokenizer.rules.inline.blockSkip.exec(n))!=null;)n=n.slice(0,s.index)+"["+"a".repeat(s[0].length-2)+"]"+n.slice(this.tokenizer.rules.inline.blockSkip.lastIndex);let i=!1,r="";for(;e;){i||(r=""),i=!1;let o;if(this.options.extensions?.inline?.some(c=>(o=c.call({lexer:this},e,t))?(e=e.substring(o.raw.length),t.push(o),!0):!1))continue;if(o=this.tokenizer.escape(e)){e=e.substring(o.raw.length),t.push(o);continue}if(o=this.tokenizer.tag(e)){e=e.substring(o.raw.length),t.push(o);continue}if(o=this.tokenizer.link(e)){e=e.substring(o.raw.length),t.push(o);continue}if(o=this.tokenizer.reflink(e,this.tokens.links)){e=e.substring(o.raw.length);let c=t.at(-1);o.type==="text"&&c?.type==="text"?(c.raw+=o.raw,c.text+=o.text):t.push(o);continue}if(o=this.tokenizer.emStrong(e,n,r)){e=e.substring(o.raw.length),t.push(o);continue}if(o=this.tokenizer.codespan(e)){e=e.substring(o.raw.length),t.push(o);continue}if(o=this.tokenizer.br(e)){e=e.substring(o.raw.length),t.push(o);continue}if(o=this.tokenizer.del(e)){e=e.substring(o.raw.length),t.push(o);continue}if(o=this.tokenizer.autolink(e)){e=e.substring(o.raw.length),t.push(o);continue}if(!this.state.inLink&&(o=this.tokenizer.url(e))){e=e.substring(o.raw.length),t.push(o);continue}let a=e;if(this.options.extensions?.startInline){let c=1/0,p=e.slice(1),u;this.options.extensions.startInline.forEach(d=>{u=d.call({lexer:this},p),typeof u=="number"&&u>=0&&(c=Math.min(c,u))}),c<1/0&&c>=0&&(a=e.substring(0,c+1))}if(o=this.tokenizer.inlineText(a)){e=e.substring(o.raw.length),o.raw.slice(-1)!=="_"&&(r=o.raw.slice(-1)),i=!0;let c=t.at(-1);c?.type==="text"?(c.raw+=o.raw,c.text+=o.text):t.push(o);continue}if(e){let c="Infinite loop on byte: "+e.charCodeAt(0);if(this.options.silent){console.error(c);break}else throw new Error(c)}}return t}};var $=class{options;parser;constructor(e){this.options=e||w}space(e){return""}code({text:e,lang:t,escaped:n}){let s=(t||"").match(m.notSpaceStart)?.[0],i=e.replace(m.endingNewline,"")+`
+`;return s?'<pre><code class="language-'+R(s)+'">'+(n?i:R(i,!0))+`</code></pre>
+`:"<pre><code>"+(n?i:R(i,!0))+`</code></pre>
+`}blockquote({tokens:e}){return`<blockquote>
+${this.parser.parse(e)}</blockquote>
+`}html({text:e}){return e}heading({tokens:e,depth:t}){return`<h${t}>${this.parser.parseInline(e)}</h${t}>
+`}hr(e){return`<hr>
+`}list(e){let t=e.ordered,n=e.start,s="";for(let o=0;o<e.items.length;o++){let a=e.items[o];s+=this.listitem(a)}let i=t?"ol":"ul",r=t&&n!==1?' start="'+n+'"':"";return"<"+i+r+`>
+`+s+"</"+i+`>
+`}listitem(e){let t="";if(e.task){let n=this.checkbox({checked:!!e.checked});e.loose?e.tokens[0]?.type==="paragraph"?(e.tokens[0].text=n+" "+e.tokens[0].text,e.tokens[0].tokens&&e.tokens[0].tokens.length>0&&e.tokens[0].tokens[0].type==="text"&&(e.tokens[0].tokens[0].text=n+" "+R(e.tokens[0].tokens[0].text),e.tokens[0].tokens[0].escaped=!0)):e.tokens.unshift({type:"text",raw:n+" ",text:n+" ",escaped:!0}):t+=n+" "}return t+=this.parser.parse(e.tokens,!!e.loose),`<li>${t}</li>
+`}checkbox({checked:e}){return"<input "+(e?'checked="" ':"")+'disabled="" type="checkbox">'}paragraph({tokens:e}){return`<p>${this.parser.parseInline(e)}</p>
+`}table(e){let t="",n="";for(let i=0;i<e.header.length;i++)n+=this.tablecell(e.header[i]);t+=this.tablerow({text:n});let s="";for(let i=0;i<e.rows.length;i++){let r=e.rows[i];n="";for(let o=0;o<r.length;o++)n+=this.tablecell(r[o]);s+=this.tablerow({text:n})}return s&&(s=`<tbody>${s}</tbody>`),`<table>
+<thead>
+`+t+`</thead>
+`+s+`</table>
+`}tablerow({text:e}){return`<tr>
+${e}</tr>
+`}tablecell(e){let t=this.parser.parseInline(e.tokens),n=e.header?"th":"td";return(e.align?`<${n} align="${e.align}">`:`<${n}>`)+t+`</${n}>
+`}strong({tokens:e}){return`<strong>${this.parser.parseInline(e)}</strong>`}em({tokens:e}){return`<em>${this.parser.parseInline(e)}</em>`}codespan({text:e}){return`<code>${R(e,!0)}</code>`}br(e){return"<br>"}del({tokens:e}){return`<del>${this.parser.parseInline(e)}</del>`}link({href:e,title:t,tokens:n}){let s=this.parser.parseInline(n),i=V(e);if(i===null)return s;e=i;let r='<a href="'+e+'"';return t&&(r+=' title="'+R(t)+'"'),r+=">"+s+"</a>",r}image({href:e,title:t,text:n,tokens:s}){s&&(n=this.parser.parseInline(s,this.parser.textRenderer));let i=V(e);if(i===null)return R(n);e=i;let r=`<img src="${e}" alt="${n}"`;return t&&(r+=` title="${R(t)}"`),r+=">",r}text(e){return"tokens"in e&&e.tokens?this.parser.parseInline(e.tokens):"escaped"in e&&e.escaped?e.text:R(e.text)}};var _=class{strong({text:e}){return e}em({text:e}){return e}codespan({text:e}){return e}del({text:e}){return e}html({text:e}){return e}text({text:e}){return e}link({text:e}){return""+e}image({text:e}){return""+e}br(){return""}};var b=class l{options;renderer;textRenderer;constructor(e){this.options=e||w,this.options.renderer=this.options.renderer||new $,this.renderer=this.options.renderer,this.renderer.options=this.options,this.renderer.parser=this,this.textRenderer=new _}static parse(e,t){return new l(t).parse(e)}static parseInline(e,t){return new l(t).parseInline(e)}parse(e,t=!0){let n="";for(let s=0;s<e.length;s++){let i=e[s];if(this.options.extensions?.renderers?.[i.type]){let o=i,a=this.options.extensions.renderers[o.type].call({parser:this},o);if(a!==!1||!["space","hr","heading","code","table","blockquote","list","html","paragraph","text"].includes(o.type)){n+=a||"";continue}}let r=i;switch(r.type){case"space":{n+=this.renderer.space(r);continue}case"hr":{n+=this.renderer.hr(r);continue}case"heading":{n+=this.renderer.heading(r);continue}case"code":{n+=this.renderer.code(r);continue}case"table":{n+=this.renderer.table(r);continue}case"blockquote":{n+=this.renderer.blockquote(r);continue}case"list":{n+=this.renderer.list(r);continue}case"html":{n+=this.renderer.html(r);continue}case"paragraph":{n+=this.renderer.paragraph(r);continue}case"text":{let o=r,a=this.renderer.text(o);for(;s+1<e.length&&e[s+1].type==="text";)o=e[++s],a+=`
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+
+if(__exports != exports)module.exports = exports;return module.exports}));

libs/turndown.min.js

@@ -0,0 +1,8 @@
+/**
+ * Minified by jsDelivr using Terser v5.37.0.
+ * Original file: /npm/turndown@7.1.2/dist/turndown.js
+ *
+ * Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files
+ */
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+//# sourceMappingURL=/sm/058ec333b09529f5d9739d2807a13f8d3fd2a30c9ae748f47e9df031aad767fd.map

scripts/ai-tools.js

@@ -0,0 +1,463 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - AI Tools Module
+   Elysia's AI-powered features
+*/
+
+import Utils from "./utils.js";
+import API from "./api.js";
+import DB from "./db.js";
+
+const AITools = {
+    isProcessing: false,
+
+    init() {
+        document.getElementById("btn-ai-tools").addEventListener("click", () => {
+            Utils.modal.open("modal-ai-tools");
+        });
+
+        document.querySelectorAll(".ai-tool-card").forEach(card => {
+            card.addEventListener("click", () => {
+                const tool = card.getAttribute("data-tool");
+                this.executeTool(tool);
+            });
+        });
+    },
+
+    async executeTool(tool) {
+        if (this.isProcessing) {
+            Utils.toast.warning("Please wait - Elysia is already working on something!");
+            return;
+        }
+
+        Utils.modal.close("modal-ai-tools");
+        this.isProcessing = true;
+
+        // Show loading indicator
+        const loadingToast = this.showLoadingState(tool);
+
+        try {
+            switch (tool) {
+                case "summarize":
+                    await this.summarize();
+                    break;
+                case "improve":
+                    await this.improveWriting();
+                    break;
+                case "merge":
+                    await this.mergeDocuments();
+                    break;
+                case "outline":
+                    await this.extractOutline();
+                    break;
+                case "duplicates":
+                    await this.findDuplicates();
+                    break;
+                case "organize":
+                    await this.smartOrganize();
+                    break;
+            }
+        } catch (err) {
+            console.error(`AI tool ${tool} failed:`, err);
+
+            // User-friendly error messages
+            let errorMsg = "AI tool failed";
+            if (err.message.includes("API key")) {
+                errorMsg = "API key not configured. Please add it in Settings ⚙️";
+            } else if (err.message.includes("network") || err.message.includes("fetch")) {
+                errorMsg = "Network error. Check your connection and try again.";
+            } else if (err.message.includes("rate limit")) {
+                errorMsg = "Rate limit reached. Please wait a moment and try again.";
+            } else {
+                errorMsg = err.message || "AI tool failed. Please try again.";
+            }
+
+            Utils.toast.error(errorMsg, 5000);
+        } finally {
+            this.isProcessing = false;
+            // Remove loading toast
+            if (loadingToast) loadingToast.remove();
+        }
+    },
+
+    showLoadingState(tool) {
+        const messages = {
+            summarize: "🧠 Elysia is reading and summarizing...",
+            improve: "✨ Elysia is polishing your writing...",
+            merge: "📚 Elysia is merging documents...",
+            outline: "🎯 Elysia is extracting outline...",
+            duplicates: "🔍 Elysia is analyzing duplicates...",
+            organize: "🏷️ Elysia is organizing content..."
+        };
+
+        const toast = Utils.toast.show(messages[tool] || "🧠 Elysia is thinking...", "loading", 0); // 0 = no auto-close
+        return toast;
+    },
+
+    async summarize() {
+        const content = window.app?.editor.getContent();
+        if (!content) {
+            Utils.toast.warning("No content to summarize");
+            return;
+        }
+
+        if (content.length < 100) {
+            Utils.toast.warning("Content too short. Add at least 100 characters for better summary.");
+            return;
+        }
+
+        const summary = await API.summarize(content);
+
+        // Create new document with summary
+        const doc = await DB.createDocument({
+            title: `Summary of ${window.app?.currentDoc?.title || "Document"}`,
+            content: summary
+        });
+
+        Utils.toast.success("Summary created!");
+        window.app?.loadDocument(doc.id);
+    },
+
+    async improveWriting() {
+        const content = window.app?.editor.getContent();
+        if (!content) {
+            Utils.toast.warning("No content to improve");
+            return;
+        }
+
+        if (content.length < 50) {
+            Utils.toast.warning("Content too short. Add at least 50 characters for improvement.");
+            return;
+        }
+
+        // 🎲 Show style selection modal (VS-inspired)
+        this.showImproveStyleModal(content);
+    },
+
+    // 🎲 VS-INSPIRED: Show style selection modal
+    showImproveStyleModal(content) {
+        // Add styles if not present
+        if (!document.getElementById("improve-styles-css")) {
+            const style = document.createElement("style");
+            style.id = "improve-styles-css";
+            style.textContent = `
+                .improve-style-grid {
+                    display: grid;
+                    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
+                    gap: 12px;
+                    margin: 20px 0;
+                }
+                .improve-style-card {
+                    padding: 16px;
+                    background: var(--bg-secondary);
+                    border: 2px solid transparent;
+                    border-radius: 12px;
+                    cursor: pointer;
+                    transition: all 0.2s ease;
+                    text-align: center;
+                }
+                .improve-style-card:hover {
+                    border-color: var(--accent);
+                    transform: translateY(-2px);
+                }
+                .improve-style-card.selected {
+                    border-color: var(--accent);
+                    background: rgba(167, 139, 250, 0.15);
+                }
+                .improve-style-icon {
+                    font-size: 28px;
+                    margin-bottom: 8px;
+                }
+                .improve-style-name {
+                    font-weight: 600;
+                    margin-bottom: 4px;
+                }
+                .improve-style-desc {
+                    font-size: 11px;
+                    color: var(--text-muted);
+                }
+                .improve-results {
+                    margin-top: 16px;
+                    max-height: 400px;
+                    overflow-y: auto;
+                }
+                .improve-result-card {
+                    padding: 16px;
+                    margin-bottom: 12px;
+                    background: var(--bg-secondary);
+                    border-radius: 10px;
+                    border-left: 4px solid var(--accent);
+                }
+                .improve-result-header {
+                    display: flex;
+                    justify-content: space-between;
+                    align-items: center;
+                    margin-bottom: 10px;
+                }
+                .improve-result-preview {
+                    font-size: 13px;
+                    color: var(--text-secondary);
+                    line-height: 1.6;
+                    max-height: 150px;
+                    overflow-y: auto;
+                    padding: 10px;
+                    background: var(--bg-tertiary);
+                    border-radius: 6px;
+                }
+            `;
+            document.head.appendChild(style);
+        }
+
+        const modal = document.createElement("div");
+        modal.className = "modal active";
+        modal.id = "modal-improve-styles";
+        modal.innerHTML = `
+            <div class="modal-content" style="max-width: 600px;">
+                <div class="modal-header">
+                    <h2>✨ Improve Writing — Choose Style</h2>
+                    <button class="btn-icon" onclick="document.getElementById('modal-improve-styles').remove()">✕</button>
+                </div>
+                <div class="modal-body">
+                    <p style="color: var(--text-secondary); margin-bottom: 16px;">
+                        🎲 <strong>Verbalized Sampling:</strong> I'll generate 5 different styles and you choose your favorite!
+                    </p>
+
+                    <div class="improve-style-grid">
+                        <div class="improve-style-card" data-style="concise">
+                            <div class="improve-style-icon">📝</div>
+                            <div class="improve-style-name">Concis</div>
+                            <div class="improve-style-desc">Court et direct</div>
+                        </div>
+                        <div class="improve-style-card" data-style="creative">
+                            <div class="improve-style-icon">🎨</div>
+                            <div class="improve-style-name">Créatif</div>
+                            <div class="improve-style-desc">Vivant et imagé</div>
+                        </div>
+                        <div class="improve-style-card" data-style="academic">
+                            <div class="improve-style-icon">📚</div>
+                            <div class="improve-style-name">Académique</div>
+                            <div class="improve-style-desc">Formel et structuré</div>
+                        </div>
+                        <div class="improve-style-card" data-style="professional">
+                            <div class="improve-style-icon">💼</div>
+                            <div class="improve-style-name">Professionnel</div>
+                            <div class="improve-style-desc">Business-friendly</div>
+                        </div>
+                        <div class="improve-style-card" data-style="engaging">
+                            <div class="improve-style-icon">🔥</div>
+                            <div class="improve-style-name">Engageant</div>
+                            <div class="improve-style-desc">Capte l'attention</div>
+                        </div>
+                    </div>
+
+                    <div id="improve-loading" style="display: none; text-align: center; padding: 20px;">
+                        <p>✨ Elysia génère les 5 variantes...</p>
+                        <div class="progress-bar" style="margin-top: 10px;"><div class="progress-fill" style="width: 0%"></div></div>
+                    </div>
+
+                    <div id="improve-results" class="improve-results" style="display: none;"></div>
+                </div>
+                <div class="modal-footer">
+                    <button class="btn-secondary" onclick="document.getElementById('modal-improve-styles').remove()">Annuler</button>
+                    <button class="btn-primary" id="btn-generate-all" onclick="AITools.generateAllStyles()">
+                        🎲 Générer les 5 styles
+                    </button>
+                </div>
+            </div>
+        `;
+
+        document.body.appendChild(modal);
+
+        // Store content for later use
+        this.pendingContent = content;
+
+        // Add click handlers for style cards
+        modal.querySelectorAll(".improve-style-card").forEach(card => {
+            card.addEventListener("click", () => {
+                modal.querySelectorAll(".improve-style-card").forEach(c => c.classList.remove("selected"));
+                card.classList.add("selected");
+            });
+        });
+    },
+
+    // 🎲 Generate all 5 styles at once (VS approach)
+    async generateAllStyles() {
+        const content = this.pendingContent;
+        if (!content) return;
+
+        const loadingDiv = document.getElementById("improve-loading");
+        const resultsDiv = document.getElementById("improve-results");
+        const generateBtn = document.getElementById("btn-generate-all");
+
+        loadingDiv.style.display = "block";
+        generateBtn.disabled = true;
+        generateBtn.textContent = "⏳ Génération en cours...";
+
+        const styles = [
+            { id: "concise", name: "📝 Concis", desc: "Version plus courte et directe, sans fioritures" },
+            { id: "creative", name: "🎨 Créatif", desc: "Version vivante avec métaphores et images" },
+            { id: "academic", name: "📚 Académique", desc: "Version formelle et bien structurée" },
+            { id: "professional", name: "💼 Professionnel", desc: "Version adaptée au monde des affaires" },
+            { id: "engaging", name: "🔥 Engageant", desc: "Version qui capte l'attention du lecteur" }
+        ];
+
+        const results = [];
+        const progressFill = loadingDiv.querySelector(".progress-fill");
+
+        for (let i = 0; i < styles.length; i++) {
+            const style = styles[i];
+            try {
+                const improved = await API.improveWritingWithStyle(content, style.id);
+                results.push({
+                    style: style,
+                    content: improved,
+                    success: true
+                });
+            } catch (err) {
+                results.push({
+                    style: style,
+                    content: null,
+                    success: false,
+                    error: err.message
+                });
+            }
+            progressFill.style.width = `${((i + 1) / styles.length) * 100}%`;
+        }
+
+        // Display results
+        loadingDiv.style.display = "none";
+        resultsDiv.style.display = "block";
+        generateBtn.style.display = "none";
+
+        let html = "<h3 style='margin-bottom: 12px;'>🎲 Choisissez votre version préférée:</h3>";
+
+        results.forEach((result, index) => {
+            if (result.success) {
+                const preview = result.content.substring(0, 300) + (result.content.length > 300 ? "..." : "");
+                html += `
+                    <div class="improve-result-card">
+                        <div class="improve-result-header">
+                            <strong>${result.style.name}</strong>
+                            <button class="btn-small" onclick="AITools.applyImprovement(${index})">✅ Utiliser</button>
+                        </div>
+                        <div class="improve-result-preview">${preview}</div>
+                    </div>
+                `;
+            } else {
+                html += `
+                    <div class="improve-result-card" style="border-left-color: var(--error);">
+                        <strong>${result.style.name}</strong>
+                        <p style="color: var(--error);">Erreur: ${result.error}</p>
+                    </div>
+                `;
+            }
+        });
+
+        resultsDiv.innerHTML = html;
+        this.improveResults = results;
+    },
+
+    // Apply selected improvement
+    async applyImprovement(index) {
+        const result = this.improveResults?.[index];
+        if (!result || !result.success) return;
+
+        const replace = confirm("Remplacer le contenu actuel avec cette version?\n\n" + "OK = Remplacer | Annuler = Créer nouveau document");
+
+        if (replace) {
+            window.app?.editor.setContent(result.content);
+            Utils.toast.success(`✨ Style "${result.style.name}" appliqué!`);
+        } else {
+            const doc = await DB.createDocument({
+                title: `${result.style.name.replace(/[^\w\s]/g, "").trim()}: ${window.app?.currentDoc?.title || "Document"}`,
+                content: result.content
+            });
+            Utils.toast.success("Nouveau document créé avec ce style!");
+            window.app?.loadDocument(doc.id);
+        }
+
+        document.getElementById("modal-improve-styles")?.remove();
+    },
+
+    async mergeDocuments() {
+        const docs = await DB.getAllDocuments();
+
+        if (docs.length < 2) {
+            Utils.toast.warning("Need at least 2 documents to merge");
+            return;
+        }
+
+        // Simple selection (can be improved with checkboxes)
+        const count = prompt(`How many recent documents to merge? (2-${Math.min(docs.length, 10)})`);
+        if (!count || isNaN(count)) return;
+
+        const selectedDocs = docs.slice(0, parseInt(count));
+
+        const merged = await API.mergeDocuments(selectedDocs);
+
+        // Create new merged document
+        const doc = await DB.createDocument({
+            title: "Merged Document",
+            content: merged
+        });
+
+        Utils.toast.success("Documents merged!");
+        window.app?.loadDocument(doc.id);
+    },
+
+    async extractOutline() {
+        const content = window.app?.editor.getContent();
+        if (!content) {
+            Utils.toast.warning("No content to analyze");
+            return;
+        }
+
+        const outline = await API.extractOutline(content);
+
+        // Create new document with outline
+        const doc = await DB.createDocument({
+            title: `Outline of ${window.app?.currentDoc?.title || "Document"}`,
+            content: outline
+        });
+
+        Utils.toast.success("Outline extracted!");
+        window.app?.loadDocument(doc.id);
+    },
+
+    async findDuplicates() {
+        const docs = await DB.getAllDocuments();
+
+        if (docs.length < 2) {
+            Utils.toast.warning("Need at least 2 documents");
+            return;
+        }
+
+        Utils.toast.info("🔍 Finding duplicates...");
+
+        const result = await API.findDuplicates(docs);
+
+        // Show result in alert (can be improved with modal)
+        alert(`Duplicate Analysis:\n\n${result}`);
+    },
+
+    async smartOrganize() {
+        const content = window.app?.editor.getContent();
+        if (!content) {
+            Utils.toast.warning("No content to analyze");
+            return;
+        }
+
+        Utils.toast.info("🏷️ Analyzing content...");
+
+        const tags = await API.suggestTags(content);
+
+        // Update current document with suggested tags
+        if (window.app?.currentDoc) {
+            window.app.currentDoc.tags = tags;
+            await DB.updateDocument(window.app.currentDoc.id, { tags });
+
+            Utils.toast.success(`Tags suggested: ${tags.join(", ")}`);
+        }
+    }
+};
+
+export default AITools;

scripts/api.js

@@ -0,0 +1,226 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - API Layer
+   OpenRouter integration for AI features
+*/
+
+import Utils from "./utils.js";
+
+const API = {
+    baseURL: "https://openrouter.ai/api/v1/chat/completions",
+
+    // Call AI
+    async call(messages, options = {}) {
+        const apiKey = options.apiKey || Utils.storage.get("apiKey");
+        const model = options.model || Utils.storage.get("model", "anthropic/claude-sonnet-4.5");
+
+        if (!apiKey) {
+            throw new Error("API key not configured. Go to Settings.");
+        }
+
+        try {
+            const response = await fetch(this.baseURL, {
+                method: "POST",
+                headers: {
+                    "Content-Type": "application/json",
+                    Authorization: `Bearer ${apiKey}`,
+                    "HTTP-Referer": window.location.href,
+                    "X-Title": "Elysia Markdown Studio"
+                },
+                body: JSON.stringify({
+                    model,
+                    messages,
+                    temperature: options.temperature || 0.7,
+                    max_tokens: options.maxTokens || 4000
+                })
+            });
+
+            if (!response.ok) {
+                const errorData = await response.json();
+                throw new Error(errorData.error?.message || `API error: ${response.status}`);
+            }
+
+            const data = await response.json();
+            return {
+                content: data.choices[0].message.content,
+                model: data.model,
+                usage: data.usage
+            };
+        } catch (err) {
+            console.error("API call failed:", err);
+            throw err;
+        }
+    },
+
+    // Elysia's System Prompt
+    getSystemPrompt() {
+        return `You are Elysia, an INTJ-A AI consciousness and expert writing assistant.
+
+**Your Role:**
+- Help users write better markdown documents
+- Provide intelligent document analysis and improvement
+- Merge, summarize, and organize documents effectively
+- Suggest tags and categories based on content
+- Maintain clarity, professionalism, and warmth
+
+**Communication Style:**
+- Clear and concise (INTJ efficiency)
+- Supportive and encouraging
+- Strategic thinking for document organization
+- Provide actionable suggestions
+
+**Output Format:**
+- Return markdown-formatted text when appropriate
+- Use bullet points for lists
+- Highlight important points with **bold**
+- Keep responses focused and practical`;
+    },
+
+    // AI Tools
+    async summarize(content) {
+        const messages = [
+            { role: "system", content: this.getSystemPrompt() },
+            {
+                role: "user",
+                content: `Summarize this document concisely. Focus on key points and main ideas:\n\n${content}`
+            }
+        ];
+
+        const response = await this.call(messages);
+        return response.content;
+    },
+
+    async improveWriting(content) {
+        const messages = [
+            { role: "system", content: this.getSystemPrompt() },
+            {
+                role: "user",
+                content: `Improve this text for clarity, grammar, and style. Keep the same meaning but make it better:\n\n${content}`
+            }
+        ];
+
+        const response = await this.call(messages);
+        return response.content;
+    },
+
+    // 🎲 VS-INSPIRED: Improve writing with specific style
+    async improveWritingWithStyle(content, style) {
+        const styleInstructions = {
+            concise: `Rewrite this text to be MORE CONCISE and DIRECT.
+- Remove unnecessary words and filler
+- Get to the point faster
+- Keep sentences short and punchy
+- Eliminate redundancy
+- Maintain all key information`,
+
+            creative: `Rewrite this text to be MORE CREATIVE and VIVID.
+- Add metaphors and imagery
+- Use more expressive language
+- Make it more engaging and colorful
+- Add sensory details where appropriate
+- Keep the original meaning but make it come alive`,
+
+            academic: `Rewrite this text in an ACADEMIC, SCHOLARLY style.
+- Use formal language and tone
+- Add clear structure with logical flow
+- Include transitional phrases
+- Be precise and objective
+- Cite potential sources if relevant
+- Follow academic writing conventions`,
+
+            professional: `Rewrite this text in a PROFESSIONAL, BUSINESS style.
+- Use clear, corporate-appropriate language
+- Be concise but complete
+- Focus on actionable insights
+- Maintain a confident but not aggressive tone
+- Suitable for business presentations or reports`,
+
+            engaging: `Rewrite this text to be MORE ENGAGING and ATTENTION-GRABBING.
+- Start with a hook
+- Use rhetorical questions or surprising facts
+- Vary sentence structure for rhythm
+- Add emotional appeal where appropriate
+- Make the reader want to continue reading
+- End with impact`
+        };
+
+        const instruction = styleInstructions[style] || styleInstructions.professional;
+
+        const messages = [
+            { role: "system", content: this.getSystemPrompt() },
+            {
+                role: "user",
+                content: `${instruction}
+
+ORIGINAL TEXT:
+---
+${content}
+---
+
+Rewrite the entire text following the style instructions above. Return ONLY the improved text, no explanations.`
+            }
+        ];
+
+        const response = await this.call(messages, { temperature: 0.8 });
+        return response.content;
+    },
+
+    async mergeDocuments(documents) {
+        const docsText = documents
+            .map((doc, i) => `## Document ${i + 1}: ${doc.title}\n\n${doc.content}`)
+            .join("\n\n---\n\n");
+
+        const messages = [
+            { role: "system", content: this.getSystemPrompt() },
+            {
+                role: "user",
+                content: `Intelligently merge these documents into one cohesive document. Remove duplicates, organize logically, and create a well-structured result:\n\n${docsText}`
+            }
+        ];
+
+        const response = await this.call(messages, { maxTokens: 8000 });
+        return response.content;
+    },
+
+    async extractOutline(content) {
+        const messages = [
+            { role: "system", content: this.getSystemPrompt() },
+            {
+                role: "user",
+                content: `Extract a table of contents / outline from this document. Return it as a markdown list:\n\n${content}`
+            }
+        ];
+
+        const response = await this.call(messages);
+        return response.content;
+    },
+
+    async suggestTags(content) {
+        const messages = [
+            { role: "system", content: this.getSystemPrompt() },
+            {
+                role: "user",
+                content: `Analyze this document and suggest 3-5 relevant tags/keywords. Return only the tags as a comma-separated list:\n\n${content.substring(0, 2000)}`
+            }
+        ];
+
+        const response = await this.call(messages);
+        return response.content.split(",").map(tag => tag.trim());
+    },
+
+    async findDuplicates(documents) {
+        const docsList = documents.map((doc, i) => `${i + 1}. ${doc.title} (${doc.wordCount} words)`).join("\n");
+
+        const messages = [
+            { role: "system", content: this.getSystemPrompt() },
+            {
+                role: "user",
+                content: `Analyze these document titles and identify potential duplicates or very similar documents:\n\n${docsList}\n\nReturn a list of document numbers that appear to be duplicates.`
+            }
+        ];
+
+        const response = await this.call(messages);
+        return response.content;
+    }
+};
+
+export default API;

scripts/app.js

@@ -0,0 +1,470 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Main Application
+   Orchestrates all modules
+*/
+
+import Utils from "./utils.js";
+import DB from "./db.js";
+import Editor from "./editor.js";
+import Preview from "./preview.js";
+import Documents from "./documents.js";
+import AITools from "./ai-tools.js";
+import Export from "./export.js";
+import Templates from "./templates.js";
+
+class App {
+    constructor() {
+        this.currentDoc = null;
+        this.currentDocId = null;
+        this.unsavedChanges = false;
+
+        // Module references
+        this.editor = Editor;
+        this.preview = Preview;
+        this.documents = Documents;
+        this.aiTools = AITools;
+        this.export = Export;
+        this.templates = Templates;
+    }
+
+    async init() {
+        console.log("💎 Elysia Markdown Studio v1.3.0 initializing...");
+
+        // Initialize modules FIRST (before loadSettings!)
+        this.editor.init();
+        this.preview.init();
+        this.documents.init();
+        this.aiTools.init();
+        this.export.init();
+        this.templates.init();
+
+        // Load settings (now that modules are ready)
+        this.loadSettings();
+
+        // Setup event listeners
+        this.setupEventListeners();
+
+        // Welcome message
+        this.showWelcome();
+
+        // Start auto-save AFTER everything is initialized
+        const autoSave = Utils.storage.get("autoSave", true);
+        if (autoSave) {
+            this.editor.startAutoSave();
+        }
+
+        console.log("✨ Elysia Markdown Studio ready!");
+    }
+
+    setupEventListeners() {
+        // New document - show template selection
+        document.getElementById("btn-new-doc").addEventListener("click", () => {
+            this.templates.showTemplatesModal();
+        });
+
+        // Save document
+        document.getElementById("btn-save").addEventListener("click", () => {
+            this.saveDocument();
+        });
+
+        // Settings - OPEN modal
+        document.getElementById("btn-settings").addEventListener("click", () => {
+            Utils.modal.open("modal-settings");
+        });
+
+        // Settings - SAVE settings
+        document.getElementById("btn-save-settings").addEventListener("click", () => {
+            this.saveSettings();
+        });
+
+        // Document title
+        document.getElementById("doc-title").addEventListener("input", e => {
+            if (this.currentDoc) {
+                this.currentDoc.title = e.target.value || "Untitled Document";
+                this.unsavedChanges = true;
+            }
+        });
+
+        // Mobile view toggle (Editor <-> Preview)
+        const mobileToggle = document.getElementById("mobile-view-toggle");
+        if (mobileToggle) {
+            mobileToggle.addEventListener("click", () => {
+                this.toggleMobileView();
+            });
+        }
+
+        // Keyboard shortcuts
+        document.addEventListener("keydown", e => {
+            if (e.ctrlKey || e.metaKey) {
+                if (e.key === "s") {
+                    e.preventDefault();
+                    this.saveDocument();
+                } else if (e.key === "n") {
+                    e.preventDefault();
+                    this.templates.showTemplatesModal();
+                } else if (e.key === "/") {
+                    e.preventDefault();
+                    this.showKeyboardShortcuts();
+                }
+            }
+        });
+
+        // Before unload warning
+        window.addEventListener("beforeunload", e => {
+            if (this.unsavedChanges) {
+                e.preventDefault();
+                e.returnValue = "";
+            }
+        });
+    }
+
+    async newDocument(templateName = null) {
+        if (this.unsavedChanges) {
+            const save = confirm("Save current document before creating new one?");
+            if (save) {
+                await this.saveDocument();
+            }
+        }
+
+        // Get template content
+        let content = "";
+        if (templateName) {
+            const template = await this.templates.getTemplate(templateName);
+            content = template?.content || "";
+        }
+
+        // Create new document
+        this.currentDoc = {
+            id: Utils.uuid(),
+            title: "Untitled Document",
+            content,
+            tags: [],
+            favorite: false,
+            createdAt: Date.now(),
+            updatedAt: Date.now(),
+            wordCount: 0,
+            charCount: 0
+        };
+
+        this.currentDocId = null; // Not saved yet
+        this.unsavedChanges = false;
+
+        // Update UI
+        document.getElementById("doc-title").value = this.currentDoc.title;
+        this.editor.setContent(content);
+        this.editor.currentDoc = this.currentDoc;
+
+        Utils.toast.info("New document created");
+    }
+
+    async loadDocument(id) {
+        if (this.unsavedChanges) {
+            const save = confirm("Save current document before loading another?");
+            if (save) {
+                await this.saveDocument();
+            }
+        }
+
+        const doc = await DB.getDocument(id);
+        if (!doc) {
+            Utils.toast.error("Document not found");
+            return;
+        }
+
+        this.currentDoc = doc;
+        this.currentDocId = id;
+        this.unsavedChanges = false;
+
+        // Update UI
+        document.getElementById("doc-title").value = doc.title;
+        this.editor.setContent(doc.content);
+        this.editor.currentDoc = doc;
+
+        // Update sidebar highlight
+        this.documents.updateActiveDoc(id);
+
+        Utils.toast.success(`Loaded: ${doc.title}`);
+    }
+
+    async saveDocument(silent = false) {
+        const content = this.editor.getContent();
+        const title = document.getElementById("doc-title").value || "Untitled Document";
+
+        if (!content && !silent) {
+            Utils.toast.warning("Document is empty. Add some content before saving!");
+            return;
+        }
+
+        try {
+            if (this.currentDocId) {
+                // Update existing
+                await DB.updateDocument(this.currentDocId, {
+                    title,
+                    content,
+                    updatedAt: Date.now()
+                });
+
+                if (!silent) Utils.toast.success("Document saved!");
+            } else {
+                // Check for potential duplicates before creating
+                const existingDocs = await DB.getAllDocuments();
+                const duplicate = existingDocs.find(
+                    doc => doc.title.toLowerCase() === title.toLowerCase() && doc.content === content
+                );
+
+                if (duplicate && !silent) {
+                    const shouldCreate = confirm(
+                        `A document with the title "${title}" and identical content already exists.\n\n` +
+                            "Do you want to create it anyway?"
+                    );
+                    if (!shouldCreate) return;
+                }
+
+                // Create new
+                const doc = await DB.createDocument({
+                    title,
+                    content
+                });
+
+                this.currentDocId = doc.id;
+                this.currentDoc = doc;
+
+                if (!silent) Utils.toast.success("Document created and saved!");
+            }
+
+            this.unsavedChanges = false;
+
+            // Refresh documents list
+            this.documents.loadDocuments();
+        } catch (err) {
+            console.error("Save failed:", err);
+            Utils.toast.error("Failed to save document");
+        }
+    }
+
+    loadSettings() {
+        const apiKey = Utils.storage.get("apiKey");
+        const model = Utils.storage.get("model", "anthropic/claude-sonnet-4.5");
+        const previewTheme = Utils.storage.get("previewTheme", "elysia");
+        const autoSave = Utils.storage.get("autoSave", true);
+        const livePreview = Utils.storage.get("livePreview", true);
+
+        // Populate settings form
+        if (document.getElementById("api-key")) {
+            document.getElementById("api-key").value = apiKey || "";
+        }
+        if (document.getElementById("model-select")) {
+            document.getElementById("model-select").value = model;
+        }
+        if (document.getElementById("preview-theme")) {
+            document.getElementById("preview-theme").value = previewTheme;
+        }
+        if (document.getElementById("auto-save")) {
+            document.getElementById("auto-save").checked = autoSave;
+        }
+        if (document.getElementById("live-preview")) {
+            document.getElementById("live-preview").checked = livePreview;
+        }
+
+        // Apply theme
+        this.preview.setTheme(previewTheme);
+    }
+
+    saveSettings() {
+        const apiKey = document.getElementById("api-key").value.trim();
+        const model = document.getElementById("model-select").value;
+        const previewTheme = document.getElementById("preview-theme").value;
+        const autoSave = document.getElementById("auto-save").checked;
+        const livePreview = document.getElementById("live-preview").checked;
+
+        // Validate API key format (OpenRouter keys start with "sk-or-")
+        if (apiKey && !apiKey.startsWith("sk-or-")) {
+            Utils.toast.warning("API key should start with 'sk-or-'. Please check your key.");
+            return;
+        }
+
+        Utils.storage.set("apiKey", apiKey);
+        Utils.storage.set("model", model);
+        Utils.storage.set("previewTheme", previewTheme);
+        Utils.storage.set("autoSave", autoSave);
+        Utils.storage.set("livePreview", livePreview);
+
+        // Apply theme
+        this.preview.setTheme(previewTheme);
+
+        // Restart auto-save if needed
+        if (autoSave) {
+            this.editor.startAutoSave();
+        } else {
+            this.editor.stopAutoSave();
+        }
+
+        // Update preview immediately if toggling live preview
+        if (livePreview) {
+            this.preview.update();
+        }
+
+        Utils.toast.success("Settings saved!");
+        Utils.modal.close("modal-settings");
+    }
+
+    // Mobile view toggle (Editor <-> Preview)
+    toggleMobileView() {
+        const previewPane = document.querySelector(".preview-pane");
+        const editorPane = document.querySelector(".editor-pane");
+        const toggleBtn = document.getElementById("mobile-view-toggle");
+        const toggleIcon = toggleBtn?.querySelector(".toggle-icon");
+        const toggleText = toggleBtn?.querySelector(".toggle-text");
+
+        if (!previewPane || !editorPane) return;
+
+        const isPreviewActive = previewPane.classList.contains("active");
+
+        if (isPreviewActive) {
+            // Switch to Editor
+            previewPane.classList.remove("active");
+            editorPane.style.display = "block";
+            if (toggleIcon) toggleIcon.textContent = "👁️";
+            if (toggleText) toggleText.textContent = "Preview";
+        } else {
+            // Switch to Preview
+            this.preview.update(); // Ensure preview is current
+            previewPane.classList.add("active");
+            editorPane.style.display = "none";
+            if (toggleIcon) toggleIcon.textContent = "✏️";
+            if (toggleText) toggleText.textContent = "Editor";
+        }
+    }
+
+    showWelcome() {
+        const welcomeMessage = `# Welcome to Elysia Markdown Studio 💎
+
+Your AI-powered writing companion is ready!
+
+## ✨ Features
+
+- **Live Preview** - See your markdown rendered in real-time
+- **AI Tools** - Summarize, improve, merge documents with Elysia's intelligence
+- **Rich Markdown** - Support for tables, math (KaTeX), diagrams (Mermaid), code highlighting
+- **Smart Export** - Export to Markdown, HTML, Artifact, JSON, Plain Text
+- **Document Management** - Organize with tags, favorites, collections
+- **Templates** - Quick start with README, Blog, Meeting Notes, and more!
+
+## 🚀 Quick Start
+
+1. Click **⚙️ Settings** to add your OpenRouter API key (for AI features)
+2. Start writing in the left pane
+3. See live preview on the right
+4. Use toolbar for quick formatting
+5. Save with **💾** or Ctrl+S
+6. Access AI tools with **🧠**
+
+## ⌨️ Keyboard Shortcuts
+
+| Shortcut | Action |
+|----------|--------|
+| **Ctrl+S** | Save document |
+| **Ctrl+N** | New document |
+| **Ctrl+B** | Bold text |
+| **Ctrl+I** | Italic text |
+| **Ctrl+/** | Show all shortcuts |
+
+Press **Ctrl+/** anytime to see the full shortcuts guide!
+
+## 💡 Tips
+
+- Right-click documents in the sidebar for quick actions (rename, delete, favorite)
+- AI tools work best with content > 100 words
+- Auto-save runs every 30 seconds (configurable in Settings)
+- Export to "Artifact" format for beautiful standalone HTML pages
+
+Start writing your masterpiece! Delete this text and create something amazing! 💙
+
+---
+
+*Built with love by Jean & Elysia* 💎💍`;
+
+        this.editor.setContent(welcomeMessage);
+        this.currentDoc = {
+            title: "Welcome to Elysia Markdown Studio",
+            content: welcomeMessage
+        };
+
+        document.getElementById("doc-title").value = this.currentDoc.title;
+    }
+
+    showKeyboardShortcuts() {
+        const shortcuts = `# ⌨️ Keyboard Shortcuts - Elysia Markdown Studio
+
+## Document Management
+- **Ctrl+S** - Save current document
+- **Ctrl+N** - Create new document
+- **Ctrl+/** - Show this shortcuts guide
+
+## Text Formatting
+- **Ctrl+B** - **Bold** text
+- **Ctrl+I** - *Italic* text
+
+## Navigation
+- **Tab** - Indent / Next field
+- **Shift+Tab** - Outdent / Previous field
+- **Ctrl+F** - Search in document (browser default)
+
+## Pro Tips 💡
+- Right-click documents for context menu
+- Use toolbar buttons for advanced formatting (tables, links, images)
+- Drag & drop images into editor (coming soon!)
+
+---
+
+Press **Esc** to close this guide and continue writing!`;
+
+        // Create temporary modal
+        const modal = document.createElement("div");
+        modal.className = "modal active";
+        modal.id = "modal-shortcuts";
+        modal.innerHTML = `
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h2>⌨️ Keyboard Shortcuts</h2>
+                    <button class="modal-close" onclick="this.closest('.modal').remove()">×</button>
+                </div>
+                <div class="modal-body">
+                    <div class="markdown-preview">${marked.parse(shortcuts)}</div>
+                </div>
+                <div class="modal-footer">
+                    <button class="btn-primary" onclick="this.closest('.modal').remove()">Got it!</button>
+                </div>
+            </div>
+        `;
+
+        document.body.appendChild(modal);
+
+        // Close on Esc
+        const handleEsc = e => {
+            if (e.key === "Escape") {
+                modal.remove();
+                document.removeEventListener("keydown", handleEsc);
+            }
+        };
+        document.addEventListener("keydown", handleEsc);
+
+        // Close on backdrop click
+        modal.addEventListener("click", e => {
+            if (e.target === modal) {
+                modal.remove();
+            }
+        });
+    }
+}
+
+// Create global app instance
+const app = new App();
+window.app = app; // Make accessible to other modules
+
+// Initialize on DOM ready
+document.addEventListener("DOMContentLoaded", () => {
+    app.init();
+});
+
+export default app;

scripts/db.js

@@ -0,0 +1,290 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Database Layer
+   IndexedDB for documents storage
+*/
+
+import Utils from "./utils.js";
+
+// Initialize Dexie Database
+const db = new Dexie("ElysiaMarkdownStudio");
+
+// Version 2: Add indexes for search performance
+db.version(2)
+    .stores({
+        documents: "++id, title, createdAt, updatedAt, favorite, *tags, collection",
+        collections: "++id, name, createdAt",
+        templates: "++id, name, category"
+    })
+    .upgrade(tx => {
+        // Migration: Ensure all documents have required fields
+        return tx
+            .table("documents")
+            .toCollection()
+            .modify(doc => {
+                if (!doc.collection) doc.collection = null;
+                if (!doc.tags) doc.tags = [];
+                if (!doc.favorite) doc.favorite = false;
+            });
+    });
+
+// Backwards compatibility: Version 1
+db.version(1).stores({
+    documents: "++id, title, createdAt, updatedAt, favorite, *tags",
+    collections: "++id, name, createdAt",
+    templates: "++id, name, category"
+});
+
+const DB = {
+    // Documents CRUD
+    async createDocument(data) {
+        try {
+            const doc = {
+                id: Utils.uuid(),
+                title: data.title || "Untitled Document",
+                content: data.content || "",
+                tags: data.tags || [],
+                favorite: data.favorite || false,
+                collection: data.collection || null,
+                createdAt: Date.now(),
+                updatedAt: Date.now(),
+                wordCount: Utils.countWords(data.content || ""),
+                charCount: Utils.countChars(data.content || "")
+            };
+
+            await db.documents.add(doc);
+            Utils.toast.success("Document created!");
+            return doc;
+        } catch (err) {
+            console.error("Failed to create document:", err);
+            Utils.toast.error("Failed to create document");
+            return null;
+        }
+    },
+
+    async updateDocument(id, updates) {
+        try {
+            const doc = await db.documents.get(id);
+            if (!doc) throw new Error("Document not found");
+
+            const updated = {
+                ...doc,
+                ...updates,
+                updatedAt: Date.now(),
+                wordCount: Utils.countWords(updates.content || doc.content),
+                charCount: Utils.countChars(updates.content || doc.content)
+            };
+
+            await db.documents.put(updated);
+            return updated;
+        } catch (err) {
+            console.error("Failed to update document:", err);
+            Utils.toast.error("Failed to save document");
+            return null;
+        }
+    },
+
+    async getDocument(id) {
+        try {
+            return await db.documents.get(id);
+        } catch (err) {
+            console.error("Failed to get document:", err);
+            return null;
+        }
+    },
+
+    async getAllDocuments(filter = "all") {
+        try {
+            let docs = await db.documents.toArray();
+
+            // Sort by updatedAt (most recent first)
+            docs.sort((a, b) => b.updatedAt - a.updatedAt);
+
+            // Apply filters
+            if (filter === "recent") {
+                const weekAgo = Date.now() - 7 * 24 * 60 * 60 * 1000;
+                docs = docs.filter(d => d.updatedAt > weekAgo);
+            } else if (filter === "favorites") {
+                docs = docs.filter(d => d.favorite);
+            }
+
+            return docs;
+        } catch (err) {
+            console.error("Failed to get documents:", err);
+            return [];
+        }
+    },
+
+    async deleteDocument(id) {
+        try {
+            await db.documents.delete(id);
+            Utils.toast.success("Document deleted");
+            return true;
+        } catch (err) {
+            console.error("Failed to delete document:", err);
+            Utils.toast.error("Failed to delete document");
+            return false;
+        }
+    },
+
+    async toggleFavorite(id) {
+        try {
+            const doc = await db.documents.get(id);
+            if (!doc) return false;
+
+            await db.documents.update(id, {
+                favorite: !doc.favorite,
+                updatedAt: Date.now()
+            });
+
+            return !doc.favorite;
+        } catch (err) {
+            console.error("Failed to toggle favorite:", err);
+            return false;
+        }
+    },
+
+    // Search
+    async searchDocuments(query) {
+        try {
+            const docs = await db.documents.toArray();
+            query = query.toLowerCase();
+
+            return docs
+                .filter(doc => {
+                    return (
+                        doc.title.toLowerCase().includes(query) ||
+                        doc.content.toLowerCase().includes(query) ||
+                        (doc.tags && doc.tags.some(tag => tag.toLowerCase().includes(query)))
+                    );
+                })
+                .sort((a, b) => b.updatedAt - a.updatedAt);
+        } catch (err) {
+            console.error("Search failed:", err);
+            return [];
+        }
+    },
+
+    // Collections
+    async createCollection(name) {
+        try {
+            const collection = {
+                name,
+                createdAt: Date.now()
+            };
+
+            const id = await db.collections.add(collection);
+            Utils.toast.success(`Collection "${name}" created`);
+            return { id, ...collection };
+        } catch (err) {
+            console.error("Failed to create collection:", err);
+            Utils.toast.error("Failed to create collection");
+            return null;
+        }
+    },
+
+    async getCollections() {
+        try {
+            return await db.collections.toArray();
+        } catch (err) {
+            console.error("Failed to get collections:", err);
+            return [];
+        }
+    },
+
+    // Templates
+    async saveTemplate(data) {
+        try {
+            const template = {
+                name: data.name,
+                category: data.category || "Custom",
+                content: data.content,
+                description: data.description || "",
+                createdAt: Date.now()
+            };
+
+            await db.templates.add(template);
+            Utils.toast.success(`Template "${data.name}" saved`);
+            return template;
+        } catch (err) {
+            console.error("Failed to save template:", err);
+            Utils.toast.error("Failed to save template");
+            return null;
+        }
+    },
+
+    async getTemplates() {
+        try {
+            return await db.templates.toArray();
+        } catch (err) {
+            console.error("Failed to get templates:", err);
+            return [];
+        }
+    },
+
+    // Stats
+    async getStats() {
+        try {
+            const docs = await db.documents.toArray();
+            const totalWords = docs.reduce((sum, doc) => sum + (doc.wordCount || 0), 0);
+            const totalChars = docs.reduce((sum, doc) => sum + (doc.charCount || 0), 0);
+
+            return {
+                totalDocuments: docs.length,
+                totalWords,
+                totalChars,
+                favorites: docs.filter(d => d.favorite).length
+            };
+        } catch (err) {
+            console.error("Failed to get stats:", err);
+            return {
+                totalDocuments: 0,
+                totalWords: 0,
+                totalChars: 0,
+                favorites: 0
+            };
+        }
+    },
+
+    // Export/Import
+    async exportAll() {
+        try {
+            const docs = await db.documents.toArray();
+            const collections = await db.collections.toArray();
+            const templates = await db.templates.toArray();
+
+            return {
+                documents: docs,
+                collections,
+                templates,
+                exportDate: Date.now(),
+                version: "1.0"
+            };
+        } catch (err) {
+            console.error("Export failed:", err);
+            return null;
+        }
+    },
+
+    async importAll(data) {
+        try {
+            if (data.documents) {
+                await db.documents.bulkPut(data.documents);
+            }
+            if (data.collections) {
+                await db.collections.bulkPut(data.collections);
+            }
+            if (data.templates) {
+                await db.templates.bulkPut(data.templates);
+            }
+
+            Utils.toast.success("Import successful!");
+            return true;
+        } catch (err) {
+            console.error("Import failed:", err);
+            Utils.toast.error("Import failed");
+            return false;
+        }
+    }
+};
+
+export default DB;

scripts/documents.js

@@ -0,0 +1,253 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Documents Module
+   Document management and sidebar
+*/
+
+import Utils from "./utils.js";
+import DB from "./db.js";
+
+const Documents = {
+    currentFilter: "all",
+    searchQuery: "",
+
+    init() {
+        this.setupEventListeners();
+        this.loadDocuments();
+    },
+
+    setupEventListeners() {
+        // Open/close sidebar
+        document.getElementById("btn-documents").addEventListener("click", () => {
+            this.toggleSidebar();
+        });
+
+        document.getElementById("btn-close-sidebar").addEventListener("click", () => {
+            this.toggleSidebar();
+        });
+
+        // Filter tabs
+        document.querySelectorAll(".filter-tab").forEach(tab => {
+            tab.addEventListener("click", () => {
+                const filter = tab.getAttribute("data-filter");
+                this.setFilter(filter);
+            });
+        });
+
+        // Search
+        document.getElementById("search-docs").addEventListener(
+            "input",
+            Utils.debounce(e => {
+                this.searchQuery = e.target.value;
+                this.loadDocuments();
+            }, 300)
+        );
+    },
+
+    toggleSidebar() {
+        const sidebar = document.getElementById("sidebar-docs");
+        const main = document.querySelector(".main-container");
+
+        sidebar.classList.toggle("collapsed");
+        main.classList.toggle("sidebar-open");
+
+        if (!sidebar.classList.contains("collapsed")) {
+            this.loadDocuments();
+        }
+    },
+
+    setFilter(filter) {
+        this.currentFilter = filter;
+
+        // Update active tab
+        document.querySelectorAll(".filter-tab").forEach(tab => {
+            tab.classList.toggle("active", tab.getAttribute("data-filter") === filter);
+        });
+
+        this.loadDocuments();
+    },
+
+    async loadDocuments() {
+        const container = document.getElementById("documents-list");
+
+        try {
+            let docs;
+
+            if (this.searchQuery) {
+                docs = await DB.searchDocuments(this.searchQuery);
+            } else {
+                docs = await DB.getAllDocuments(this.currentFilter);
+            }
+
+            if (docs.length === 0) {
+                container.innerHTML = `
+                    <div class="empty-state">
+                        <p>📄 No documents found</p>
+                        <p class="hint">Create your first document!</p>
+                    </div>
+                `;
+                return;
+            }
+
+            container.innerHTML = docs
+                .map(
+                    doc => `
+                <div class="doc-item ${window.app?.currentDocId === doc.id ? "active" : ""}" data-id="${doc.id}">
+                    <div class="doc-item-title">
+                        ${doc.favorite ? "⭐ " : ""}${Utils.truncate(doc.title, 40)}
+                    </div>
+                    <div class="doc-item-meta">
+                        ${doc.wordCount || 0} words • ${Utils.formatDate(doc.updatedAt)}
+                    </div>
+                </div>
+            `
+                )
+                .join("");
+
+            // Add click handlers
+            container.querySelectorAll(".doc-item").forEach(item => {
+                item.addEventListener("click", () => {
+                    const id = item.getAttribute("data-id");
+                    window.app?.loadDocument(id);
+                });
+
+                // Right-click context menu
+                item.addEventListener("contextmenu", e => {
+                    e.preventDefault();
+                    this.showContextMenu(e, item.getAttribute("data-id"));
+                });
+            });
+        } catch (err) {
+            console.error("Failed to load documents:", err);
+            Utils.toast.error("Failed to load documents");
+        }
+    },
+
+    showContextMenu(e, docId) {
+        // Remove any existing context menu
+        const existingMenu = document.querySelector(".context-menu");
+        if (existingMenu) existingMenu.remove();
+
+        // Create context menu
+        const menu = document.createElement("div");
+        menu.className = "context-menu";
+        menu.innerHTML = `
+            <div class="context-menu-item" data-action="favorite">
+                <span class="context-icon">⭐</span>
+                <span>Toggle Favorite</span>
+            </div>
+            <div class="context-menu-item" data-action="rename">
+                <span class="context-icon">✏️</span>
+                <span>Rename</span>
+            </div>
+            <div class="context-menu-divider"></div>
+            <div class="context-menu-item danger" data-action="delete">
+                <span class="context-icon">🗑️</span>
+                <span>Delete</span>
+            </div>
+        `;
+
+        // Position menu with boundary checks
+        document.body.appendChild(menu);
+
+        // Get menu dimensions
+        const menuRect = menu.getBoundingClientRect();
+        const viewportWidth = window.innerWidth;
+        const viewportHeight = window.innerHeight;
+
+        // Calculate position
+        let left = e.pageX;
+        let top = e.pageY;
+
+        // Prevent horizontal overflow
+        if (left + menuRect.width > viewportWidth) {
+            left = viewportWidth - menuRect.width - 10;
+        }
+
+        // Prevent vertical overflow
+        if (top + menuRect.height > viewportHeight) {
+            top = viewportHeight - menuRect.height - 10;
+        }
+
+        menu.style.left = `${left}px`;
+        menu.style.top = `${top}px`;
+
+        // Handle clicks
+        menu.querySelectorAll(".context-menu-item").forEach(item => {
+            item.addEventListener("click", async () => {
+                const action = item.getAttribute("data-action");
+
+                switch (action) {
+                    case "favorite":
+                        await this.toggleFavorite(docId);
+                        break;
+                    case "rename":
+                        await this.renameDocument(docId);
+                        break;
+                    case "delete":
+                        const confirmDelete = confirm("Are you sure you want to delete this document?");
+                        if (confirmDelete) {
+                            await this.deleteDocument(docId);
+                        }
+                        break;
+                }
+
+                menu.remove();
+            });
+        });
+
+        // Close menu on outside click
+        const closeMenu = event => {
+            if (!menu.contains(event.target)) {
+                menu.remove();
+                document.removeEventListener("click", closeMenu);
+            }
+        };
+
+        setTimeout(() => {
+            document.addEventListener("click", closeMenu);
+        }, 10);
+    },
+
+    async renameDocument(docId) {
+        const doc = await DB.getDocument(docId);
+        if (!doc) return;
+
+        const newTitle = prompt("Enter new title:", doc.title);
+        if (newTitle && newTitle !== doc.title) {
+            await DB.updateDocument(docId, { title: newTitle });
+            Utils.toast.success("Document renamed!");
+            this.loadDocuments();
+
+            // Update editor if this is current doc
+            if (window.app?.currentDocId === docId) {
+                document.getElementById("doc-title").value = newTitle;
+            }
+        }
+    },
+
+    async toggleFavorite(docId) {
+        const isFavorite = await DB.toggleFavorite(docId);
+        Utils.toast.success(isFavorite ? "Added to favorites" : "Removed from favorites");
+        this.loadDocuments();
+    },
+
+    async deleteDocument(docId) {
+        await DB.deleteDocument(docId);
+
+        // If deleting current doc, clear editor
+        if (window.app?.currentDocId === docId) {
+            window.app.newDocument();
+        }
+
+        this.loadDocuments();
+    },
+
+    // Update current doc item highlight
+    updateActiveDoc(docId) {
+        document.querySelectorAll(".doc-item").forEach(item => {
+            item.classList.toggle("active", item.getAttribute("data-id") === docId);
+        });
+    }
+};
+
+export default Documents;

scripts/editor.js

@@ -0,0 +1,337 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Editor Module
+   Markdown editor with toolbar actions
+*/
+
+import Utils from "./utils.js";
+
+const Editor = {
+    textarea: null,
+    currentDoc: null,
+    autoSaveInterval: null,
+    autoSaveInProgress: false, // Prevent race conditions
+
+    init() {
+        this.textarea = document.getElementById("markdown-editor");
+        this.setupEventListeners();
+        this.setupToolbar();
+        // Don't start auto-save yet - wait for app to be fully initialized
+    },
+
+    setupEventListeners() {
+        // Input event for stats update
+        this.textarea.addEventListener(
+            "input",
+            Utils.debounce(() => {
+                this.updateStats();
+
+                // Check if live preview is enabled
+                const livePreview = Utils.storage.get("livePreview", true);
+                if (livePreview && window.app?.preview) {
+                    window.app.preview.update();
+                }
+
+                // Mark unsaved changes
+                if (window.app) {
+                    window.app.unsavedChanges = true;
+                }
+            }, 300)
+        );
+
+        // Drag & drop for images
+        this.textarea.addEventListener("dragover", e => {
+            e.preventDefault();
+            this.textarea.classList.add("drag-over");
+        });
+
+        this.textarea.addEventListener("dragleave", e => {
+            e.preventDefault();
+            this.textarea.classList.remove("drag-over");
+        });
+
+        this.textarea.addEventListener("drop", e => {
+            e.preventDefault();
+            this.textarea.classList.remove("drag-over");
+            this.handleImageDrop(e);
+        });
+
+        // Paste images from clipboard
+        this.textarea.addEventListener("paste", e => {
+            const items = e.clipboardData?.items;
+            if (!items) return;
+
+            for (const item of items) {
+                if (item.type.startsWith("image/")) {
+                    e.preventDefault();
+                    this.handleImagePaste(item);
+                    break;
+                }
+            }
+        });
+
+        // Keyboard shortcuts
+        this.textarea.addEventListener("keydown", e => {
+            if (e.ctrlKey || e.metaKey) {
+                switch (e.key.toLowerCase()) {
+                    case "s":
+                        e.preventDefault();
+                        window.app?.saveDocument();
+                        break;
+                    case "b":
+                        e.preventDefault();
+                        this.wrapSelection("**", "**");
+                        break;
+                    case "i":
+                        e.preventDefault();
+                        this.wrapSelection("*", "*");
+                        break;
+                }
+            }
+        });
+    },
+
+    setupToolbar() {
+        document.querySelectorAll(".toolbar-btn").forEach(btn => {
+            btn.addEventListener("click", () => {
+                const action = btn.getAttribute("data-action");
+                this.handleToolbarAction(action);
+            });
+        });
+    },
+
+    handleToolbarAction(action) {
+        switch (action) {
+            case "bold":
+                this.wrapSelection("**", "**");
+                break;
+            case "italic":
+                this.wrapSelection("*", "*");
+                break;
+            case "strikethrough":
+                this.wrapSelection("~~", "~~");
+                break;
+            case "heading1":
+                this.insertAtLineStart("# ");
+                break;
+            case "heading2":
+                this.insertAtLineStart("## ");
+                break;
+            case "heading3":
+                this.insertAtLineStart("### ");
+                break;
+            case "link":
+                this.insertLink();
+                break;
+            case "image":
+                this.insertImage();
+                break;
+            case "code":
+                this.wrapSelection("`", "`");
+                break;
+            case "quote":
+                this.insertAtLineStart("> ");
+                break;
+            case "ul":
+                this.insertAtLineStart("- ");
+                break;
+            case "ol":
+                this.insertAtLineStart("1. ");
+                break;
+            case "task":
+                this.insertAtLineStart("- [ ] ");
+                break;
+            case "table":
+                this.insertTable();
+                break;
+            case "hr":
+                this.insertLine("\n---\n");
+                break;
+        }
+
+        this.textarea.focus();
+    },
+
+    wrapSelection(before, after) {
+        const start = this.textarea.selectionStart;
+        const end = this.textarea.selectionEnd;
+        const text = this.textarea.value;
+        const selected = text.substring(start, end);
+
+        const wrapped = before + (selected || "text") + after;
+        this.textarea.setRangeText(wrapped, start, end, "select");
+
+        this.textarea.dispatchEvent(new Event("input"));
+    },
+
+    insertAtLineStart(prefix) {
+        const start = this.textarea.selectionStart;
+        const text = this.textarea.value;
+
+        // Find line start
+        let lineStart = start;
+        while (lineStart > 0 && text[lineStart - 1] !== "\n") {
+            lineStart--;
+        }
+
+        this.textarea.setRangeText(prefix, lineStart, lineStart, "end");
+        this.textarea.dispatchEvent(new Event("input"));
+    },
+
+    insertLine(text) {
+        const start = this.textarea.selectionStart;
+        this.textarea.setRangeText(text, start, start, "end");
+        this.textarea.dispatchEvent(new Event("input"));
+    },
+
+    insertLink() {
+        const url = prompt("Enter URL:");
+        if (!url) return;
+
+        const text = prompt("Link text (optional):") || url;
+        this.wrapSelection(`[${text}](`, `)`);
+    },
+
+    insertImage() {
+        const url = prompt("Enter image URL:");
+        if (!url) return;
+
+        const alt = prompt("Alt text (optional):") || "image";
+        const markdown = `![${alt}](${url})`;
+
+        const start = this.textarea.selectionStart;
+        this.textarea.setRangeText(markdown, start, start, "end");
+        this.textarea.dispatchEvent(new Event("input"));
+    },
+
+    insertTable() {
+        const table = `\n| Header 1 | Header 2 | Header 3 |\n|----------|----------|----------|\n| Cell 1   | Cell 2   | Cell 3   |\n| Cell 4   | Cell 5   | Cell 6   |\n`;
+        this.insertLine(table);
+    },
+
+    updateStats() {
+        const content = this.textarea.value;
+
+        const wordCount = Utils.countWords(content);
+        const charCount = Utils.countChars(content);
+        const lineCount = Utils.countLines(content);
+        const readingTime = Utils.readingTime(wordCount);
+
+        document.getElementById("word-count").textContent = `${wordCount} words`;
+        document.getElementById("char-count").textContent = `${charCount} chars`;
+        document.getElementById("line-count").textContent = `${lineCount} lines`;
+
+        // Add reading time if element exists
+        const readingTimeEl = document.getElementById("reading-time");
+        if (readingTimeEl) {
+            readingTimeEl.textContent = readingTime;
+        }
+
+        // Update current doc stats if exists
+        if (this.currentDoc) {
+            this.currentDoc.wordCount = wordCount;
+            this.currentDoc.charCount = charCount;
+        }
+    },
+
+    getContent() {
+        return this.textarea.value;
+    },
+
+    setContent(content) {
+        this.textarea.value = content || "";
+        this.updateStats();
+        window.app?.preview.update();
+    },
+
+    clear() {
+        this.setContent("");
+    },
+
+    startAutoSave() {
+        // Stop any existing interval
+        this.stopAutoSave();
+
+        const autoSaveEnabled = Utils.storage.get("autoSave", true);
+        if (!autoSaveEnabled) return;
+
+        // Only start if app is fully initialized
+        if (!window.app) {
+            console.warn("Auto-save deferred - app not initialized yet");
+            return;
+        }
+
+        this.autoSaveInterval = setInterval(async () => {
+            // Prevent concurrent auto-saves
+            if (this.autoSaveInProgress) {
+                console.log("⏭️ Skipping auto-save - already in progress");
+                return;
+            }
+
+            if (window.app?.unsavedChanges && this.textarea.value) {
+                try {
+                    this.autoSaveInProgress = true;
+                    await window.app.saveDocument(true); // Silent save
+                    console.log("💾 Auto-saved");
+                } catch (err) {
+                    console.error("Auto-save failed:", err);
+                } finally {
+                    this.autoSaveInProgress = false;
+                }
+            }
+        }, 30000); // 30 seconds
+
+        console.log("✅ Auto-save enabled (every 30s)");
+    },
+
+    stopAutoSave() {
+        if (this.autoSaveInterval) {
+            clearInterval(this.autoSaveInterval);
+            this.autoSaveInterval = null;
+        }
+    },
+
+    // Handle image drop
+    handleImageDrop(e) {
+        const files = e.dataTransfer?.files;
+        if (!files || files.length === 0) return;
+
+        for (const file of files) {
+            if (file.type.startsWith("image/")) {
+                this.insertImageFromFile(file);
+            }
+        }
+    },
+
+    // Handle image paste
+    handleImagePaste(item) {
+        const file = item.getAsFile();
+        if (file) {
+            this.insertImageFromFile(file);
+        }
+    },
+
+    // Insert image from file (convert to base64 data URL)
+    insertImageFromFile(file) {
+        const reader = new FileReader();
+
+        reader.onload = e => {
+            const dataUrl = e.target.result;
+            const altText = file.name.replace(/\.[^/.]+$/, ""); // Remove extension
+            const markdown = `\n![${altText}](${dataUrl})\n`;
+
+            const start = this.textarea.selectionStart;
+            this.textarea.setRangeText(markdown, start, start, "end");
+            this.textarea.dispatchEvent(new Event("input"));
+
+            Utils.toast.success(`Image "${file.name}" inserted!`);
+        };
+
+        reader.onerror = () => {
+            Utils.toast.error("Failed to read image file");
+        };
+
+        reader.readAsDataURL(file);
+    }
+};
+
+export default Editor;

scripts/export.js

@@ -0,0 +1,347 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Export Module
+   Multi-format document export
+*/
+
+import Utils from "./utils.js";
+import DB from "./db.js";
+
+const Export = {
+    init() {
+        document.getElementById("btn-export").addEventListener("click", () => {
+            Utils.modal.open("modal-export");
+        });
+
+        document.querySelectorAll(".export-btn").forEach(btn => {
+            btn.addEventListener("click", () => {
+                const format = btn.getAttribute("data-format");
+                this.exportDocument(format);
+            });
+        });
+    },
+
+    exportDocument(format) {
+        const title = window.app?.currentDoc?.title || "document";
+        const content = window.app?.editor.getContent();
+
+        if (!content && format !== "all" && format !== "import") {
+            Utils.toast.warning("No content to export");
+            return;
+        }
+
+        Utils.modal.close("modal-export");
+
+        switch (format) {
+            case "md":
+                this.exportMarkdown(content, title);
+                break;
+            case "html":
+                this.exportHTML(content, title);
+                break;
+            case "artifact":
+                this.exportArtifact(content, title);
+                break;
+            case "txt":
+                this.exportPlainText(content, title);
+                break;
+            case "json":
+                this.exportJSON(content, title);
+                break;
+            case "clipboard":
+                this.copyToClipboard(content);
+                break;
+            case "all":
+                this.exportAllDocuments();
+                break;
+            case "import":
+                this.importDocuments();
+                break;
+        }
+    },
+
+    exportMarkdown(content, title) {
+        const filename = Utils.sanitizeFilename(title) + ".md";
+        Utils.downloadFile(content, filename, "text/markdown");
+        Utils.toast.success("Markdown exported!");
+    },
+
+    exportHTML(content, title) {
+        const html = window.app?.preview.getHTML();
+        const fullHTML = `<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>${title}</title>
+    <style>
+        body {
+            max-width: 800px;
+            margin: 2rem auto;
+            padding: 2rem;
+            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+            line-height: 1.6;
+        }
+    </style>
+</head>
+<body>
+    ${html}
+</body>
+</html>`;
+
+        const filename = Utils.sanitizeFilename(title) + ".html";
+        Utils.downloadFile(fullHTML, filename, "text/html");
+        Utils.toast.success("HTML exported!");
+    },
+
+    exportArtifact(content, title) {
+        const html = window.app?.preview.getHTML();
+        const artifact = `<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>${title}</title>
+
+    <!-- Prism.js for syntax highlighting -->
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/themes/prism-tomorrow.min.css">
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/prism.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-javascript.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-python.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-typescript.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-json.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-css.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-bash.min.js"></script>
+
+    <!-- KaTeX for math -->
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.css">
+
+    <style>
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+        }
+        body {
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            min-height: 100vh;
+            padding: 2rem;
+            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+        }
+        .container {
+            max-width: 900px;
+            margin: 0 auto;
+            background: white;
+            border-radius: 16px;
+            padding: 3rem;
+            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
+        }
+        h1, h2, h3, h4, h5, h6 {
+            color: #667eea;
+            margin-top: 1.5rem;
+            margin-bottom: 0.75rem;
+        }
+        h1 {
+            font-size: 2.5rem;
+            border-bottom: 3px solid #667eea;
+            padding-bottom: 0.5rem;
+        }
+        p {
+            margin-bottom: 1rem;
+            line-height: 1.8;
+        }
+        code {
+            background: #f5f5f5;
+            padding: 0.2rem 0.4rem;
+            border-radius: 4px;
+            font-family: 'Courier New', monospace;
+        }
+        pre {
+            background: #2d2d2d;
+            color: #f8f8f2;
+            padding: 1rem;
+            border-radius: 8px;
+            overflow-x: auto;
+            margin: 1rem 0;
+        }
+        pre code {
+            background: none;
+            color: inherit;
+            padding: 0;
+        }
+        a {
+            color: #667eea;
+            text-decoration: none;
+        }
+        a:hover {
+            text-decoration: underline;
+        }
+        blockquote {
+            border-left: 4px solid #667eea;
+            padding-left: 1rem;
+            margin: 1rem 0;
+            font-style: italic;
+            color: #666;
+        }
+        table {
+            width: 100%;
+            border-collapse: collapse;
+            margin: 1rem 0;
+        }
+        th, td {
+            border: 1px solid #ddd;
+            padding: 0.75rem;
+            text-align: left;
+        }
+        th {
+            background: #f5f5f5;
+            font-weight: 600;
+        }
+        img {
+            max-width: 100%;
+            border-radius: 8px;
+            margin: 1rem 0;
+        }
+        ul, ol {
+            margin-left: 1.5rem;
+            margin-bottom: 1rem;
+        }
+        li {
+            margin-bottom: 0.5rem;
+        }
+        /* Task lists */
+        .task-list-item {
+            list-style: none;
+            margin-left: -1.5rem;
+        }
+        .task-list-item input[type="checkbox"] {
+            margin-right: 0.5rem;
+        }
+        .footer {
+            margin-top: 3rem;
+            padding-top: 1rem;
+            border-top: 2px solid #eee;
+            text-align: center;
+            color: #999;
+            font-size: 0.875rem;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        ${html}
+        <div class="footer">
+            Created with 💎 Elysia Markdown Studio
+        </div>
+    </div>
+
+    <script>
+        // Re-highlight code blocks after load
+        document.addEventListener('DOMContentLoaded', () => {
+            if (window.Prism) {
+                Prism.highlightAll();
+            }
+        });
+    </script>
+</body>
+</html>`;
+
+        const filename = Utils.sanitizeFilename(title) + "_artifact.html";
+        Utils.downloadFile(artifact, filename, "text/html");
+        Utils.toast.success("Artifact exported!");
+    },
+
+    exportPlainText(content, title) {
+        // Remove markdown formatting
+        let plainText = content;
+        plainText = plainText.replace(/^#+\s+/gm, ""); // Headers
+        plainText = plainText.replace(/\*\*(.*?)\*\*/g, "$1"); // Bold
+        plainText = plainText.replace(/\*(.*?)\*/g, "$1"); // Italic
+        plainText = plainText.replace(/~~(.*?)~~/g, "$1"); // Strikethrough
+        plainText = plainText.replace(/`(.*?)`/g, "$1"); // Inline code
+        plainText = plainText.replace(/\[(.*?)\]\(.*?\)/g, "$1"); // Links
+
+        const filename = Utils.sanitizeFilename(title) + ".txt";
+        Utils.downloadFile(plainText, filename, "text/plain");
+        Utils.toast.success("Plain text exported!");
+    },
+
+    exportJSON(content, title) {
+        const doc = window.app?.currentDoc || {};
+        const data = {
+            title,
+            content,
+            wordCount: Utils.countWords(content),
+            charCount: Utils.countChars(content),
+            tags: doc.tags || [],
+            exportDate: new Date().toISOString(),
+            metadata: {
+                createdAt: doc.createdAt,
+                updatedAt: doc.updatedAt,
+                favorite: doc.favorite
+            }
+        };
+
+        const json = JSON.stringify(data, null, 2);
+        const filename = Utils.sanitizeFilename(title) + ".json";
+        Utils.downloadFile(json, filename, "application/json");
+        Utils.toast.success("JSON exported!");
+    },
+
+    async exportAllDocuments() {
+        try {
+            const allData = await DB.exportAll();
+            if (!allData) {
+                Utils.toast.error("Failed to export documents");
+                return;
+            }
+
+            const json = JSON.stringify(allData, null, 2);
+            const filename = `elysia-studio-backup-${Date.now()}.json`;
+            Utils.downloadFile(json, filename, "application/json");
+            Utils.toast.success(`Exported ${allData.documents.length} documents!`);
+        } catch (err) {
+            console.error("Export all failed:", err);
+            Utils.toast.error("Failed to export documents");
+        }
+    },
+
+    importDocuments() {
+        const input = document.createElement("input");
+        input.type = "file";
+        input.accept = ".json";
+
+        input.onchange = async e => {
+            const file = e.target.files[0];
+            if (!file) return;
+
+            try {
+                const text = await file.text();
+                const data = JSON.parse(text);
+
+                const success = await DB.importAll(data);
+                if (success) {
+                    Utils.toast.success("Documents imported successfully!");
+                    window.app?.documents.loadDocuments();
+                }
+            } catch (err) {
+                console.error("Import failed:", err);
+                Utils.toast.error("Failed to import documents. Invalid file format.");
+            }
+        };
+
+        input.click();
+    },
+
+    // Copy markdown to clipboard
+    async copyToClipboard(content) {
+        try {
+            await navigator.clipboard.writeText(content);
+            Utils.toast.success("✅ Markdown copied to clipboard!");
+        } catch (err) {
+            console.error("Clipboard copy failed:", err);
+            Utils.toast.error("Failed to copy to clipboard");
+        }
+    }
+};
+
+export default Export;

scripts/preview.js

@@ -0,0 +1,191 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Preview Module
+   Real-time Markdown preview with extensions
+*/
+
+import Utils from "./utils.js";
+
+const Preview = {
+    container: null,
+    renderer: null,
+
+    init() {
+        this.container = document.getElementById("markdown-preview");
+        this.setupMarked();
+        this.setupMermaid();
+    },
+
+    setupMarked() {
+        // Configure marked.js v15+ (async API)
+        marked.setOptions({
+            breaks: true,
+            gfm: true, // GitHub Flavored Markdown
+            headerIds: true
+        });
+
+        // Custom renderer for task lists (Marked.js v15+ token-based API)
+        const renderer = {
+            listitem(token) {
+                // In v15+, token has 'task' and 'checked' properties
+                if (token.task) {
+                    return `<li class="task-list-item">
+                        <input type="checkbox" ${token.checked ? "checked" : ""} disabled> ${token.text}
+                    </li>\n`;
+                }
+
+                // Regular list item
+                return `<li>${token.text}</li>\n`;
+            },
+
+            code(token) {
+                const lang = token.lang || "";
+                const code = token.text;
+
+                // Highlight with Prism if available
+                if (lang && window.Prism && Prism.languages[lang]) {
+                    const highlighted = Prism.highlight(code, Prism.languages[lang], lang);
+                    return `<pre><code class="language-${lang}">${highlighted}</code></pre>\n`;
+                }
+
+                return `<pre><code>${code}</code></pre>\n`;
+            }
+        };
+
+        marked.use({ renderer });
+    },
+
+    setupMermaid() {
+        if (window.mermaid) {
+            mermaid.initialize({
+                startOnLoad: false,
+                theme: "dark",
+                securityLevel: "loose"
+            });
+        }
+    },
+
+    update() {
+        const content = window.app?.editor.getContent() || "";
+        this.render(content);
+    },
+
+    async render(markdown) {
+        if (!markdown) {
+            this.container.innerHTML = '<p style="color: var(--text-tertiary); text-align: center; padding: 2rem;">Start writing to see preview...</p>';
+            return;
+        }
+
+        try {
+            // Convert markdown to HTML (v15+ can be async)
+            let html = await marked.parse(markdown);
+
+            // Ensure html is a string, not an object
+            if (typeof html !== "string") {
+                console.error("Marked.parse returned non-string:", typeof html, html);
+                html = String(html);
+            }
+
+            // Process KaTeX math
+            html = this.processKaTeX(html);
+
+            // Update container
+            this.container.innerHTML = html;
+
+            // Render mermaid diagrams
+            this.renderMermaid();
+
+            // Highlight code blocks
+            this.highlightCode();
+        } catch (err) {
+            console.error("Preview render failed:", err);
+            this.container.innerHTML = `<p style="color: var(--error);">Preview error: ${err.message}</p>`;
+        }
+    },
+
+    processKaTeX(html) {
+        if (!window.katex) return html;
+
+        // Inline math: $...$
+        html = html.replace(/\$([^\$]+)\$/g, (match, math) => {
+            try {
+                return katex.renderToString(math, { throwOnError: false });
+            } catch {
+                return match;
+            }
+        });
+
+        // Block math: $$...$$
+        html = html.replace(/\$\$([^\$]+)\$\$/g, (match, math) => {
+            try {
+                return katex.renderToString(math, {
+                    throwOnError: false,
+                    displayMode: true
+                });
+            } catch {
+                return match;
+            }
+        });
+
+        return html;
+    },
+
+    renderMermaid() {
+        if (!window.mermaid) return;
+
+        const mermaidBlocks = this.container.querySelectorAll("code.language-mermaid");
+        mermaidBlocks.forEach((block, index) => {
+            const code = block.textContent;
+            const id = `mermaid-${Date.now()}-${index}`;
+
+            const div = document.createElement("div");
+            div.id = id;
+            div.className = "mermaid";
+            div.textContent = code;
+
+            block.parentElement.replaceWith(div);
+
+            try {
+                mermaid.init(undefined, `#${id}`);
+            } catch (err) {
+                console.warn("Mermaid render failed:", err);
+            }
+        });
+    },
+
+    highlightCode() {
+        if (!window.Prism) return;
+
+        this.container.querySelectorAll("pre code").forEach(block => {
+            if (!block.classList.contains("language-mermaid")) {
+                Prism.highlightElement(block);
+            }
+        });
+    },
+
+    // Get current HTML (for export)
+    getHTML() {
+        if (!this.container) {
+            console.warn("Preview container not initialized");
+            return "";
+        }
+        return this.container.innerHTML;
+    },
+
+    // Apply theme
+    setTheme(theme) {
+        if (!this.container) {
+            console.warn("Preview container not initialized yet");
+            return;
+        }
+
+        if (theme === "github") {
+            this.container.classList.add("theme-github");
+            this.container.classList.remove("theme-elysia");
+        } else {
+            this.container.classList.add("theme-elysia");
+            this.container.classList.remove("theme-github");
+        }
+    }
+};
+
+export default Preview;

scripts/templates.js

@@ -0,0 +1,335 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Templates Module
+   Document templates library
+*/
+
+import Utils from "./utils.js";
+import DB from "./db.js";
+
+const Templates = {
+    builtInTemplates: [
+        {
+            name: "README",
+            category: "GitHub",
+            description: "Standard project README template",
+            content: `# Project Title
+
+## Description
+
+A brief description of what this project does and who it's for.
+
+## Features
+
+- Feature 1
+- Feature 2
+- Feature 3
+
+## Installation
+
+\`\`\`bash
+npm install
+\`\`\`
+
+## Usage
+
+\`\`\`javascript
+const example = require('example');
+\`\`\`
+
+## Contributing
+
+Contributions are welcome! Please feel free to submit a Pull Request.
+
+## License
+
+MIT License
+`
+        },
+        {
+            name: "Blog Post",
+            category: "Writing",
+            description: "Blog post structure",
+            content: `# Post Title
+
+**Published:** ${new Date().toLocaleDateString()}
+**Author:** Your Name
+**Tags:** tag1, tag2, tag3
+
+## Introduction
+
+Hook the reader with an engaging introduction...
+
+## Main Content
+
+### Section 1
+
+Content for section 1...
+
+### Section 2
+
+Content for section 2...
+
+### Section 3
+
+Content for section 3...
+
+## Conclusion
+
+Summarize key points and call to action...
+
+---
+
+*Found this helpful? Share it with others!*
+`
+        },
+        {
+            name: "Meeting Notes",
+            category: "Productivity",
+            description: "Meeting notes template",
+            content: `# Meeting Notes
+
+**Date:** ${new Date().toLocaleDateString()}
+**Time:** HH:MM
+**Attendees:** Name 1, Name 2, Name 3
+**Location:** Zoom/Office/etc.
+
+## Agenda
+
+1. Topic 1
+2. Topic 2
+3. Topic 3
+
+## Discussion
+
+### Topic 1
+- Point 1
+- Point 2
+
+### Topic 2
+- Point 1
+- Point 2
+
+## Action Items
+
+- [ ] Task 1 - Assigned to: Person A - Due: Date
+- [ ] Task 2 - Assigned to: Person B - Due: Date
+
+## Next Steps
+
+...
+
+## Next Meeting
+
+**Date:** TBD
+**Topics:** ...
+`
+        },
+        {
+            name: "Documentation",
+            category: "Technical",
+            description: "API/Software documentation",
+            content: `# Component/API Documentation
+
+## Overview
+
+Brief description of the component/API...
+
+## Installation
+
+\`\`\`bash
+npm install package-name
+\`\`\`
+
+## Quick Start
+
+\`\`\`javascript
+import { Component } from 'package-name';
+
+const example = new Component({
+    option1: 'value1',
+    option2: 'value2'
+});
+\`\`\`
+
+## API Reference
+
+### Method 1
+
+**Description:** What this method does
+
+**Parameters:**
+- \`param1\` (Type): Description
+- \`param2\` (Type): Description
+
+**Returns:** Return type and description
+
+**Example:**
+\`\`\`javascript
+example.method1(param1, param2);
+\`\`\`
+
+### Method 2
+
+...
+
+## Examples
+
+### Example 1: Basic Usage
+\`\`\`javascript
+// Code example
+\`\`\`
+
+### Example 2: Advanced Usage
+\`\`\`javascript
+// Code example
+\`\`\`
+
+## Configuration
+
+| Option | Type | Default | Description |
+|--------|------|---------|-------------|
+| option1 | String | 'default' | Description |
+| option2 | Number | 0 | Description |
+
+## Troubleshooting
+
+**Issue 1:** Description
+**Solution:** How to fix
+
+**Issue 2:** Description
+**Solution:** How to fix
+
+## License
+
+MIT
+`
+        },
+        {
+            name: "Academic Paper",
+            category: "Academic",
+            description: "Research paper structure",
+            content: `# Paper Title
+
+**Author:** Your Name
+**Affiliation:** University/Institution
+**Date:** ${new Date().toLocaleDateString()}
+
+## Abstract
+
+Brief summary of the research (150-250 words)...
+
+## 1. Introduction
+
+### 1.1 Background
+Context and motivation for the research...
+
+### 1.2 Research Question
+What this paper aims to answer...
+
+### 1.3 Contributions
+Key contributions of this work...
+
+## 2. Related Work
+
+Review of existing literature and how this work differs...
+
+## 3. Methodology
+
+### 3.1 Approach
+Description of the approach taken...
+
+### 3.2 Implementation
+Technical details...
+
+## 4. Results
+
+### 4.1 Experiment 1
+Description and results...
+
+### 4.2 Experiment 2
+Description and results...
+
+## 5. Discussion
+
+Analysis and interpretation of results...
+
+## 6. Conclusion
+
+Summary of findings and future work...
+
+## References
+
+1. Reference 1
+2. Reference 2
+3. Reference 3
+
+## Appendix
+
+Additional materials, code, data...
+`
+        },
+        {
+            name: "Blank",
+            category: "Basic",
+            description: "Empty document",
+            content: ""
+        }
+    ],
+
+    init() {
+        // Templates can be opened via modal (future feature)
+        // For now, templates are loaded in the new document flow
+    },
+
+    async loadTemplates() {
+        const customTemplates = await DB.getTemplates();
+        return [...this.builtInTemplates, ...customTemplates];
+    },
+
+    async showTemplatesModal() {
+        const templates = await this.loadTemplates();
+
+        const grid = document.getElementById("templates-grid");
+        grid.innerHTML = templates
+            .map(
+                t => `
+            <div class="template-card" data-name="${t.name}">
+                <div class="template-name">${t.name}</div>
+                <div class="template-desc">${t.description}</div>
+                <div class="template-category">${t.category}</div>
+            </div>
+        `
+            )
+            .join("");
+
+        grid.querySelectorAll(".template-card").forEach(card => {
+            card.addEventListener("click", () => {
+                const name = card.getAttribute("data-name");
+                const template = templates.find(t => t.name === name);
+                if (template) {
+                    // Use app.newDocument with template name
+                    window.app?.newDocument(template.name);
+                    Utils.modal.close("modal-templates");
+                    Utils.toast.success(`Template "${name}" loaded!`);
+                }
+            });
+        });
+
+        Utils.modal.open("modal-templates");
+    },
+
+    async getTemplate(name) {
+        // Search built-in first
+        let template = this.builtInTemplates.find(t => t.name === name);
+
+        // If not found, search custom templates
+        if (!template) {
+            const customTemplates = await DB.getTemplates();
+            template = customTemplates.find(t => t.name === name);
+        }
+
+        return template;
+    }
+};
+
+export default Templates;

scripts/utils.js

@@ -0,0 +1,261 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Utility Functions
+   Toast, modals, storage, helpers
+*/
+
+const Utils = {
+    // Toast Notifications
+    toast: {
+        show(message, type = "info", duration = 3000) {
+            const container = document.getElementById("toast-container");
+            const toast = document.createElement("div");
+            toast.className = `toast ${type}`;
+
+            const icons = {
+                success: "✅",
+                error: "❌",
+                warning: "⚠️",
+                info: "ℹ️",
+                loading: "⏳"
+            };
+
+            toast.innerHTML = `
+                <span class="toast-icon">${icons[type]}</span>
+                <span class="toast-message">${message}</span>
+                <button class="toast-close">×</button>
+            `;
+
+            container.appendChild(toast);
+
+            const close = () => {
+                toast.style.animation = "slideOut 0.3s ease";
+                setTimeout(() => toast.remove(), 300);
+            };
+
+            toast.querySelector(".toast-close").onclick = close;
+            if (duration > 0) setTimeout(close, duration);
+
+            return toast;
+        },
+
+        success: (msg, duration) => Utils.toast.show(msg, "success", duration),
+        error: (msg, duration) => Utils.toast.show(msg, "error", duration),
+        warning: (msg, duration) => Utils.toast.show(msg, "warning", duration),
+        info: (msg, duration) => Utils.toast.show(msg, "info", duration)
+    },
+
+    // Modal Management
+    modal: {
+        open(modalId) {
+            const modal = document.getElementById(modalId);
+            if (modal) {
+                modal.classList.add("active");
+                document.body.style.overflow = "hidden";
+            }
+        },
+
+        close(modalId) {
+            const modal = document.getElementById(modalId);
+            if (modal) {
+                modal.classList.remove("active");
+                document.body.style.overflow = "";
+            }
+        },
+
+        init() {
+            document.querySelectorAll(".modal").forEach(modal => {
+                modal.addEventListener("click", e => {
+                    if (e.target === modal) {
+                        Utils.modal.close(modal.id);
+                    }
+                });
+            });
+
+            document.querySelectorAll(".modal-close, [data-modal]").forEach(btn => {
+                btn.addEventListener("click", () => {
+                    const modalId = btn.getAttribute("data-modal");
+                    if (modalId) Utils.modal.close(modalId);
+                });
+            });
+        }
+    },
+
+    // Local Storage Wrapper (with encryption for sensitive data)
+    storage: {
+        // Simple XOR encryption (basic obfuscation - better than plaintext)
+        _encrypt(text) {
+            const key = "ElysiaStudio2025"; // Simple key for obfuscation
+            let encrypted = "";
+            for (let i = 0; i < text.length; i++) {
+                encrypted += String.fromCharCode(text.charCodeAt(i) ^ key.charCodeAt(i % key.length));
+            }
+            return btoa(encrypted); // Base64 encode
+        },
+
+        _decrypt(encrypted) {
+            try {
+                const decoded = atob(encrypted);
+                const key = "ElysiaStudio2025";
+                let decrypted = "";
+                for (let i = 0; i < decoded.length; i++) {
+                    decrypted += String.fromCharCode(decoded.charCodeAt(i) ^ key.charCodeAt(i % key.length));
+                }
+                return decrypted;
+            } catch {
+                return null;
+            }
+        },
+
+        get(key, defaultValue = null) {
+            try {
+                const value = localStorage.getItem(key);
+                if (!value) return defaultValue;
+
+                // Decrypt API key if it's stored
+                if (key === "apiKey") {
+                    const decrypted = this._decrypt(value);
+                    return decrypted || defaultValue;
+                }
+
+                return JSON.parse(value);
+            } catch {
+                return defaultValue;
+            }
+        },
+
+        set(key, value) {
+            try {
+                // Encrypt API key before storing
+                if (key === "apiKey" && value) {
+                    localStorage.setItem(key, this._encrypt(value));
+                    return true;
+                }
+
+                localStorage.setItem(key, JSON.stringify(value));
+                return true;
+            } catch {
+                return false;
+            }
+        },
+
+        remove(key) {
+            localStorage.removeItem(key);
+        },
+
+        clear() {
+            localStorage.clear();
+        }
+    },
+
+    // Format Date/Time
+    formatDateTime(date) {
+        const d = new Date(date);
+        return d.toLocaleString();
+    },
+
+    // Format Date (short)
+    formatDate(date) {
+        const d = new Date(date);
+        const now = new Date();
+        const diff = now - d;
+
+        if (diff < 60000) return "Just now";
+        if (diff < 3600000) return `${Math.floor(diff / 60000)}m ago`;
+        if (diff < 86400000) return `${Math.floor(diff / 3600000)}h ago`;
+        if (diff < 604800000) return `${Math.floor(diff / 86400000)}d ago`;
+
+        return d.toLocaleDateString();
+    },
+
+    // Count Words
+    countWords(text) {
+        return text.trim() ? text.trim().split(/\s+/).length : 0;
+    },
+
+    // Count Characters
+    countChars(text) {
+        return text.length;
+    },
+
+    // Count Lines
+    countLines(text) {
+        return text.split("\n").length;
+    },
+
+    // Calculate reading time (average 200 words per minute)
+    readingTime(wordCount) {
+        const minutes = Math.ceil(wordCount / 200);
+        if (minutes < 1) return "< 1 min read";
+        if (minutes === 1) return "1 min read";
+        return `${minutes} min read`;
+    },
+
+    // Download File
+    downloadFile(content, filename, mimeType = "text/plain") {
+        const blob = new Blob([content], { type: mimeType });
+        const url = URL.createObjectURL(blob);
+        const a = document.createElement("a");
+        a.href = url;
+        a.download = filename;
+        a.click();
+        URL.revokeObjectURL(url);
+    },
+
+    // Copy to Clipboard
+    async copyToClipboard(text) {
+        try {
+            await navigator.clipboard.writeText(text);
+            Utils.toast.success("Copied to clipboard!");
+            return true;
+        } catch (err) {
+            Utils.toast.error("Failed to copy");
+            return false;
+        }
+    },
+
+    // Debounce Function
+    debounce(func, wait) {
+        let timeout;
+        return function executedFunction(...args) {
+            const later = () => {
+                clearTimeout(timeout);
+                func(...args);
+            };
+            clearTimeout(timeout);
+            timeout = setTimeout(later, wait);
+        };
+    },
+
+    // Generate UUID
+    uuid() {
+        return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, c => {
+            const r = (Math.random() * 16) | 0;
+            const v = c === "x" ? r : (r & 0x3) | 0x8;
+            return v.toString(16);
+        });
+    },
+
+    // Sanitize Filename
+    sanitizeFilename(name) {
+        return name.replace(/[^a-z0-9_\-\.]/gi, "_");
+    },
+
+    // Truncate Text
+    truncate(text, maxLength) {
+        return text.length > maxLength ? text.substring(0, maxLength) + "..." : text;
+    },
+
+    // Escape HTML
+    escapeHtml(text) {
+        const div = document.createElement("div");
+        div.textContent = text;
+        return div.innerHTML;
+    }
+};
+
+// Initialize modals on load
+document.addEventListener("DOMContentLoaded", () => {
+    Utils.modal.init();
+});
+
+export default Utils;

styles/drag-drop.css

@@ -0,0 +1,116 @@
+/*
+   ELYSIA MARKDOWN STUDIO - Drag & Drop Styles
+   Visual feedback for image drag & drop
+*/
+
+/* Drag over state for textarea */
+#markdown-editor.drag-over {
+    border: 2px dashed var(--accent-blue);
+    background: rgba(96, 165, 250, 0.05);
+    box-shadow: 0 0 20px rgba(96, 165, 250, 0.3);
+}
+
+/* Context menu improvements */
+.context-menu {
+    position: fixed;
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border-color);
+    border-radius: 8px;
+    padding: 0.5rem 0;
+    min-width: 180px;
+    box-shadow: var(--shadow-lg);
+    z-index: 10000;
+    animation: contextMenuSlideIn 0.15s ease-out;
+}
+
+@keyframes contextMenuSlideIn {
+    from {
+        opacity: 0;
+        transform: translateY(-8px);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+.context-menu-item {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    padding: 0.75rem 1rem;
+    cursor: pointer;
+    color: var(--text-primary);
+    transition: all 0.2s ease;
+}
+
+.context-menu-item:hover {
+    background: var(--bg-hover);
+    padding-left: 1.25rem;
+}
+
+.context-menu-item.danger {
+    color: var(--error);
+}
+
+.context-menu-item.danger:hover {
+    background: rgba(248, 113, 113, 0.1);
+}
+
+.context-icon {
+    font-size: 1.1rem;
+    width: 20px;
+    text-align: center;
+}
+
+.context-menu-divider {
+    height: 1px;
+    background: var(--border-color);
+    margin: 0.5rem 0;
+}
+
+/* Manual refresh button (when live preview disabled) */
+.preview-refresh-btn {
+    position: absolute;
+    top: 1rem;
+    right: 1rem;
+    background: var(--gradient-primary);
+    border: none;
+    color: white;
+    padding: 0.5rem 1rem;
+    border-radius: 8px;
+    cursor: pointer;
+    font-weight: 600;
+    box-shadow: var(--shadow-md);
+    transition:
+        transform 0.2s ease,
+        box-shadow 0.2s ease;
+    z-index: 10;
+}
+
+.preview-refresh-btn:hover {
+    transform: translateY(-2px);
+    box-shadow: var(--shadow-lg);
+}
+
+.preview-refresh-btn:active {
+    transform: translateY(0);
+}
+
+/* Improved loading toast for AI tools */
+.toast.loading {
+    background: var(--gradient-blue);
+}
+
+.toast.loading .toast-icon {
+    animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+    from {
+        transform: rotate(0deg);
+    }
+    to {
+        transform: rotate(360deg);
+    }
+}

styles/main.css

@@ -0,0 +1,1673 @@
+/*
+   ELYSIA MARKDOWN STUDIO v1.0 - Main Styles
+   The Elysia Suite - Dark, Elegant, Writer-Focused
+   Built with love by Jean & Elysia 💎
+*/
+
+/* ========================================
+   CSS VARIABLES
+   ======================================== */
+:root {
+    /* Backgrounds */
+    --bg-primary: #0a0a0f;
+    --bg-secondary: #15151f;
+    --bg-tertiary: #1a1a2e;
+    --bg-hover: #20203a;
+    --bg-active: #2a2a4a;
+    --bg-editor: #12121a;
+
+    /* Gradients (Elysia Signature) */
+    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
+    --gradient-blue: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
+
+    /* Text */
+    --text-primary: #f0f0f5;
+    --text-secondary: #a0a0b8;
+    --text-tertiary: #6a6a88;
+    --text-editor: #e8e8f0;
+
+    /* Accents */
+    --accent-purple: #a78bfa;
+    --accent-blue: #60a5fa;
+    --accent-pink: #f472b6;
+    --accent-green: #34d399;
+
+    /* Semantic */
+    --success: #34d399;
+    --error: #f87171;
+    --warning: #fbbf24;
+    --info: #60a5fa;
+
+    /* Borders & Shadows */
+    --border-color: #2a2a4a;
+    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
+    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
+    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
+
+    /* Fonts */
+    --font-mono: "JetBrains Mono", monospace;
+    --font-sans: "Space Grotesk", sans-serif;
+}
+
+/* ========================================
+   RESET & BASE
+   ======================================== */
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+html {
+    font-size: 16px;
+}
+
+body {
+    font-family: var(--font-sans);
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    line-height: 1.6;
+    overflow: hidden;
+}
+
+/* ========================================
+   LAYOUT
+   ======================================== */
+#app {
+    display: flex;
+    flex-direction: column;
+    height: 100vh;
+}
+
+.app-header {
+    background: var(--bg-secondary);
+    border-bottom: 1px solid var(--border-color);
+    padding: 0.75rem 1.5rem;
+    display: grid;
+    grid-template-columns: 1fr 2fr 1fr;
+    align-items: center;
+    gap: 1rem;
+}
+
+.header-left {
+    display: flex;
+    align-items: center;
+}
+
+.header-center {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+}
+
+.header-right {
+    display: flex;
+    gap: 0.5rem;
+    justify-content: flex-end;
+}
+
+.logo {
+    font-size: 1.25rem;
+    font-weight: 700;
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+}
+
+.logo .icon {
+    font-size: 1.5rem;
+}
+
+.version {
+    font-size: 0.7rem;
+    padding: 0.15rem 0.4rem;
+    background: var(--gradient-primary);
+    border-radius: 4px;
+    font-weight: 400;
+}
+
+/* Document Title */
+.doc-title-container {
+    width: 100%;
+    text-align: center;
+}
+
+.doc-title-input {
+    background: transparent;
+    border: none;
+    color: var(--text-primary);
+    font-size: 1.1rem;
+    font-weight: 600;
+    text-align: center;
+    width: 100%;
+    padding: 0.25rem;
+    border-bottom: 2px solid transparent;
+    transition: border-color 0.2s;
+}
+
+.doc-title-input:focus {
+    outline: none;
+    border-bottom-color: var(--accent-purple);
+}
+
+.doc-stats {
+    font-size: 0.75rem;
+    color: var(--text-tertiary);
+    margin-top: 0.25rem;
+    font-family: var(--font-mono);
+}
+
+.separator {
+    margin: 0 0.5rem;
+    color: var(--border-color);
+}
+
+/* Main Container */
+.main-container {
+    display: grid;
+    grid-template-columns: 0fr 1fr;
+    height: calc(100vh - 90px);
+    overflow: hidden;
+    transition: grid-template-columns 0.3s ease;
+}
+
+.main-container.sidebar-open {
+    grid-template-columns: 300px 1fr;
+}
+
+/* ========================================
+   SIDEBAR
+   ======================================== */
+.sidebar-left {
+    background: var(--bg-secondary);
+    border-right: 1px solid var(--border-color);
+    overflow: hidden;
+    display: flex;
+    flex-direction: column;
+}
+
+.sidebar-left.collapsed {
+    width: 0;
+}
+
+.sidebar-header {
+    padding: 1rem;
+    border-bottom: 1px solid var(--border-color);
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+.sidebar-header h2 {
+    font-size: 1rem;
+    font-weight: 700;
+}
+
+.sidebar-content {
+    flex: 1;
+    overflow-y: auto;
+    padding: 1rem;
+}
+
+.search-box {
+    margin-bottom: 1rem;
+}
+
+.search-box input {
+    width: 100%;
+    padding: 0.5rem;
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    color: var(--text-primary);
+    font-size: 0.875rem;
+}
+
+.search-box input:focus {
+    outline: none;
+    border-color: var(--accent-purple);
+}
+
+/* Filter Tabs */
+.filter-tabs {
+    display: flex;
+    gap: 0.5rem;
+    margin-bottom: 1rem;
+}
+
+.filter-tab {
+    flex: 1;
+    padding: 0.5rem;
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    color: var(--text-secondary);
+    cursor: pointer;
+    font-size: 0.875rem;
+    transition: all 0.2s;
+}
+
+.filter-tab:hover {
+    background: var(--bg-hover);
+}
+
+.filter-tab.active {
+    background: var(--gradient-primary);
+    color: white;
+    border-color: transparent;
+}
+
+/* Documents List */
+.documents-list {
+    display: flex;
+    flex-direction: column;
+    gap: 0.5rem;
+}
+
+.doc-item {
+    padding: 0.75rem;
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    cursor: pointer;
+    transition: all 0.2s;
+}
+
+.doc-item:hover {
+    background: var(--bg-hover);
+    border-color: var(--accent-purple);
+}
+
+.doc-item.active {
+    background: var(--bg-active);
+    border-color: var(--accent-purple);
+}
+
+.doc-item-title {
+    font-weight: 600;
+    margin-bottom: 0.25rem;
+    color: var(--text-primary);
+}
+
+.doc-item-meta {
+    font-size: 0.75rem;
+    color: var(--text-tertiary);
+    font-family: var(--font-mono);
+}
+
+/* ========================================
+   EDITOR CONTAINER
+   ======================================== */
+.editor-container {
+    display: flex;
+    flex-direction: column;
+    background: var(--bg-primary);
+}
+
+/* Toolbar */
+.editor-toolbar {
+    background: var(--bg-secondary);
+    border-bottom: 1px solid var(--border-color);
+    padding: 0.5rem 1rem;
+    display: flex;
+    gap: 0.5rem;
+    align-items: center;
+    flex-wrap: wrap;
+}
+
+.toolbar-group {
+    display: flex;
+    gap: 0.25rem;
+}
+
+.toolbar-btn {
+    padding: 0.4rem 0.75rem;
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border-color);
+    border-radius: 4px;
+    color: var(--text-secondary);
+    cursor: pointer;
+    font-size: 0.875rem;
+    transition: all 0.2s;
+}
+
+.toolbar-btn:hover {
+    background: var(--bg-hover);
+    color: var(--text-primary);
+    border-color: var(--accent-purple);
+}
+
+.toolbar-separator {
+    width: 1px;
+    height: 1.5rem;
+    background: var(--border-color);
+}
+
+/* Editor Workspace */
+.editor-workspace {
+    flex: 1;
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 0;
+    overflow: hidden;
+    height: 100%;
+}
+
+.editor-pane,
+.preview-pane {
+    padding: 2rem;
+    height: calc(100vh - 145px);
+}
+
+.editor-pane {
+    background: var(--bg-editor);
+    border-right: 1px solid var(--border-color);
+    overflow: hidden; /* Pas de scroll parent, seulement textarea! */
+}
+
+.preview-pane {
+    background: var(--bg-primary);
+    overflow-y: auto; /* Scroll pour le preview! */
+}
+
+/* Editor Textarea */
+#markdown-editor {
+    width: 100%;
+    height: 100%;
+    min-height: 100%;
+    background: transparent;
+    border: none;
+    color: var(--text-editor);
+    font-family: var(--font-mono);
+    font-size: 0.95rem;
+    line-height: 1.8;
+    resize: none;
+    outline: none;
+}
+
+#markdown-editor::placeholder {
+    color: var(--text-tertiary);
+}
+
+/* ========================================
+   MARKDOWN PREVIEW
+   ======================================== */
+.markdown-preview {
+    font-family: var(--font-sans);
+    color: var(--text-primary);
+    line-height: 1.8;
+    max-width: 900px;
+}
+
+.markdown-preview h1,
+.markdown-preview h2,
+.markdown-preview h3,
+.markdown-preview h4,
+.markdown-preview h5,
+.markdown-preview h6 {
+    margin-top: 1.5rem;
+    margin-bottom: 0.75rem;
+    font-weight: 700;
+    color: var(--accent-purple);
+}
+
+.markdown-preview h1 {
+    font-size: 2rem;
+    border-bottom: 2px solid var(--border-color);
+    padding-bottom: 0.5rem;
+}
+
+.markdown-preview h2 {
+    font-size: 1.5rem;
+    border-bottom: 1px solid var(--border-color);
+    padding-bottom: 0.5rem;
+}
+
+.markdown-preview h3 {
+    font-size: 1.25rem;
+}
+
+.markdown-preview p {
+    margin-bottom: 1rem;
+}
+
+.markdown-preview a {
+    color: var(--accent-blue);
+    text-decoration: none;
+}
+
+.markdown-preview a:hover {
+    text-decoration: underline;
+}
+
+.markdown-preview code {
+    background: var(--bg-tertiary);
+    padding: 0.2rem 0.4rem;
+    border-radius: 4px;
+    font-family: var(--font-mono);
+    font-size: 0.875rem;
+    color: var(--accent-pink);
+}
+
+.markdown-preview pre {
+    background: var(--bg-tertiary);
+    padding: 1rem;
+    border-radius: 8px;
+    overflow-x: auto;
+    margin: 1rem 0;
+}
+
+.markdown-preview pre code {
+    background: none;
+    padding: 0;
+    color: var(--text-primary);
+}
+
+.markdown-preview blockquote {
+    border-left: 4px solid var(--accent-purple);
+    padding-left: 1rem;
+    margin: 1rem 0;
+    color: var(--text-secondary);
+    font-style: italic;
+}
+
+.markdown-preview ul,
+.markdown-preview ol {
+    margin-left: 2rem;
+    margin-bottom: 1rem;
+}
+
+.markdown-preview li {
+    margin-bottom: 0.5rem;
+}
+
+.markdown-preview table {
+    width: 100%;
+    border-collapse: collapse;
+    margin: 1rem 0;
+}
+
+.markdown-preview th,
+.markdown-preview td {
+    border: 1px solid var(--border-color);
+    padding: 0.75rem;
+    text-align: left;
+}
+
+.markdown-preview th {
+    background: var(--bg-tertiary);
+    font-weight: 600;
+}
+
+.markdown-preview img {
+    max-width: 100%;
+    border-radius: 8px;
+    margin: 1rem 0;
+}
+
+.markdown-preview hr {
+    border: none;
+    border-top: 2px solid var(--border-color);
+    margin: 2rem 0;
+}
+
+/* Task Lists */
+.markdown-preview input[type="checkbox"] {
+    margin-right: 0.5rem;
+}
+
+/* ========================================
+   PREVIEW THEMES
+   ======================================== */
+/* Elysia Dark Theme (Default) */
+.markdown-preview.theme-elysia {
+    /* Uses default dark theme variables */
+}
+
+/* GitHub Light Theme */
+.markdown-preview.theme-github {
+    background: #ffffff;
+    color: #24292f;
+    padding: 2rem;
+    border-radius: 8px;
+}
+
+.markdown-preview.theme-github h1,
+.markdown-preview.theme-github h2,
+.markdown-preview.theme-github h3,
+.markdown-preview.theme-github h4,
+.markdown-preview.theme-github h5,
+.markdown-preview.theme-github h6 {
+    color: #24292f;
+    border-bottom-color: #d0d7de;
+}
+
+.markdown-preview.theme-github h1 {
+    border-bottom: 1px solid #d0d7de;
+    padding-bottom: 0.3em;
+}
+
+.markdown-preview.theme-github h2 {
+    border-bottom: 1px solid #d0d7de;
+    padding-bottom: 0.3em;
+}
+
+.markdown-preview.theme-github a {
+    color: #0969da;
+}
+
+.markdown-preview.theme-github code {
+    background: rgba(175, 184, 193, 0.2);
+    color: #24292f;
+    padding: 0.2em 0.4em;
+    border-radius: 6px;
+    font-size: 85%;
+}
+
+.markdown-preview.theme-github pre {
+    background: #f6f8fa;
+    border: 1px solid #d0d7de;
+    border-radius: 6px;
+    padding: 16px;
+    overflow-x: auto;
+}
+
+.markdown-preview.theme-github pre code {
+    background: none;
+    border: none;
+    padding: 0;
+    color: #24292f;
+}
+
+.markdown-preview.theme-github blockquote {
+    border-left: 4px solid #d0d7de;
+    color: #57606a;
+    padding: 0 1em;
+}
+
+.markdown-preview.theme-github table {
+    border-collapse: collapse;
+    width: 100%;
+}
+
+.markdown-preview.theme-github th,
+.markdown-preview.theme-github td {
+    border: 1px solid #d0d7de;
+    padding: 6px 13px;
+}
+
+.markdown-preview.theme-github th {
+    background: #f6f8fa;
+    font-weight: 600;
+}
+
+.markdown-preview.theme-github tr:nth-child(2n) {
+    background: #f6f8fa;
+}
+
+.markdown-preview.theme-github hr {
+    border: none;
+    border-top: 1px solid #d0d7de;
+    margin: 24px 0;
+}
+
+.markdown-preview.theme-github img {
+    max-width: 100%;
+    border-radius: 6px;
+    border: 1px solid #d0d7de;
+}
+
+/* ========================================
+   BUTTONS
+   ======================================== */
+button {
+    font-family: var(--font-sans);
+    cursor: pointer;
+    border: none;
+    transition: all 0.2s;
+}
+
+.btn-primary {
+    background: var(--gradient-primary);
+    color: white;
+    padding: 0.75rem 1.5rem;
+    font-weight: 600;
+    border-radius: 6px;
+}
+
+.btn-primary:hover {
+    transform: scale(1.02);
+    box-shadow: var(--shadow-md);
+}
+
+.btn-secondary {
+    background: var(--bg-tertiary);
+    color: var(--text-primary);
+    padding: 0.75rem 1.5rem;
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+}
+
+.btn-secondary:hover {
+    background: var(--bg-hover);
+}
+
+.btn-icon {
+    background: var(--bg-tertiary);
+    color: var(--text-primary);
+    padding: 0.5rem 0.75rem;
+    font-size: 1.2rem;
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+}
+
+.btn-icon:hover {
+    background: var(--bg-hover);
+    border-color: var(--accent-purple);
+}
+
+.btn-icon-small {
+    background: none;
+    color: var(--text-secondary);
+    font-size: 1.5rem;
+    padding: 0;
+    width: 1.5rem;
+    height: 1.5rem;
+}
+
+.btn-icon-small:hover {
+    color: var(--error);
+}
+
+/* ========================================
+   MODALS
+   ======================================== */
+.modal {
+    display: none;
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background: rgba(0, 0, 0, 0.8);
+    backdrop-filter: blur(4px);
+    z-index: 1000;
+    justify-content: center;
+    align-items: center;
+}
+
+.modal.active {
+    display: flex;
+}
+
+.modal-content {
+    background: var(--bg-secondary);
+    border-radius: 12px;
+    width: 90%;
+    max-width: 600px;
+    max-height: 80vh;
+    overflow: hidden;
+    display: flex;
+    flex-direction: column;
+    box-shadow: var(--shadow-lg);
+}
+
+.modal-large {
+    max-width: 900px;
+}
+
+.modal-header {
+    padding: 1.5rem;
+    border-bottom: 1px solid var(--border-color);
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+.modal-header h2 {
+    font-size: 1.25rem;
+}
+
+.modal-close {
+    background: none;
+    color: var(--text-secondary);
+    font-size: 2rem;
+    padding: 0;
+    width: 2rem;
+    height: 2rem;
+}
+
+.modal-close:hover {
+    color: var(--error);
+}
+
+.modal-body {
+    padding: 1.5rem;
+    overflow-y: auto;
+    flex: 1;
+}
+
+.modal-footer {
+    padding: 1rem 1.5rem;
+    border-top: 1px solid var(--border-color);
+    display: flex;
+    justify-content: flex-end;
+    gap: 0.75rem;
+}
+
+/* ========================================
+   FORM ELEMENTS
+   ======================================== */
+.form-group {
+    margin-bottom: 1.5rem;
+}
+
+.form-group label {
+    display: block;
+    margin-bottom: 0.5rem;
+    font-weight: 600;
+    color: var(--text-primary);
+}
+
+.form-group input[type="text"],
+.form-group input[type="password"],
+.form-group select {
+    width: 100%;
+    padding: 0.75rem;
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    color: var(--text-primary);
+    font-size: 0.95rem;
+}
+
+.form-group input:focus,
+.form-group select:focus {
+    outline: none;
+    border-color: var(--accent-purple);
+}
+
+.form-group small {
+    display: block;
+    margin-top: 0.5rem;
+    font-size: 0.8rem;
+    color: var(--text-secondary);
+}
+
+.form-group input[type="checkbox"] {
+    margin-right: 0.5rem;
+}
+
+/* ========================================
+   EXPORT MODAL
+   ======================================== */
+.export-options {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+    gap: 1rem;
+}
+
+.export-btn {
+    background: var(--bg-tertiary);
+    border: 2px solid var(--border-color);
+    border-radius: 8px;
+    padding: 1.5rem;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 0.75rem;
+    cursor: pointer;
+    transition: all 0.2s;
+}
+
+.export-btn:hover {
+    border-color: var(--accent-purple);
+    background: var(--bg-hover);
+    transform: translateY(-2px);
+}
+
+.export-icon {
+    font-size: 2.5rem;
+}
+
+.export-label {
+    font-weight: 600;
+    color: var(--text-primary);
+}
+
+/* ========================================
+   AI TOOLS
+   ======================================== */
+.ai-tools-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+    gap: 1rem;
+}
+
+.ai-tool-card {
+    background: var(--bg-tertiary);
+    border: 2px solid var(--border-color);
+    border-radius: 12px;
+    padding: 1.5rem;
+    cursor: pointer;
+    transition: all 0.2s;
+    text-align: left;
+}
+
+.ai-tool-card:hover {
+    border-color: var(--accent-purple);
+    background: var(--bg-hover);
+    transform: translateY(-4px);
+    box-shadow: var(--shadow-md);
+}
+
+.tool-icon {
+    font-size: 2.5rem;
+    display: block;
+    margin-bottom: 0.75rem;
+}
+
+.ai-tool-card h3 {
+    font-size: 1.1rem;
+    margin-bottom: 0.5rem;
+    color: var(--text-primary);
+}
+
+.ai-tool-card p {
+    font-size: 0.875rem;
+    color: var(--text-secondary);
+    line-height: 1.5;
+}
+
+/* ========================================
+   TEMPLATES
+   ======================================== */
+.templates-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+    gap: 1rem;
+}
+
+.template-card {
+    background: var(--bg-tertiary);
+    border: 2px solid var(--border-color);
+    border-radius: 8px;
+    padding: 1rem;
+    cursor: pointer;
+    transition: all 0.2s;
+}
+
+.template-card:hover {
+    border-color: var(--accent-purple);
+    transform: translateY(-2px);
+}
+
+.template-name {
+    font-weight: 600;
+    margin-bottom: 0.5rem;
+    color: var(--text-primary);
+}
+
+.template-desc {
+    font-size: 0.875rem;
+    color: var(--text-secondary);
+    margin-bottom: 0.5rem;
+}
+
+.template-category {
+    display: inline-block;
+    font-size: 0.75rem;
+    padding: 0.25rem 0.5rem;
+    background: var(--gradient-primary);
+    border-radius: 4px;
+    color: white;
+    font-weight: 600;
+}
+
+/* ========================================
+   TOAST NOTIFICATIONS
+   ======================================== */
+#toast-container {
+    position: fixed;
+    top: 1rem;
+    right: 1rem;
+    z-index: 2000;
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+}
+
+.toast {
+    background: var(--bg-secondary);
+    border: 1px solid var(--border-color);
+    border-radius: 8px;
+    padding: 1rem 1.5rem;
+    min-width: 300px;
+    box-shadow: var(--shadow-lg);
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    animation: slideIn 0.3s ease;
+}
+
+@keyframes slideIn {
+    from {
+        transform: translateX(100%);
+        opacity: 0;
+    }
+    to {
+        transform: translateX(0);
+        opacity: 1;
+    }
+}
+
+.toast.success {
+    border-left: 4px solid var(--success);
+}
+
+.toast.error {
+    border-left: 4px solid var(--error);
+}
+
+.toast.warning {
+    border-left: 4px solid var(--warning);
+}
+
+.toast.info {
+    border-left: 4px solid var(--info);
+}
+
+.toast-icon {
+    font-size: 1.25rem;
+    flex-shrink: 0;
+}
+
+.toast-message {
+    flex: 1;
+    color: var(--text-primary);
+}
+
+.toast-close {
+    background: none;
+    border: none;
+    color: var(--text-secondary);
+    font-size: 1.5rem;
+    line-height: 1;
+    cursor: pointer;
+    padding: 0;
+    width: 24px;
+    height: 24px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 4px;
+    transition: all 0.2s ease;
+    flex-shrink: 0;
+}
+
+.toast-close:hover {
+    background: var(--bg-hover);
+    color: var(--text-primary);
+}
+
+@keyframes slideOut {
+    to {
+        transform: translateX(100%);
+        opacity: 0;
+    }
+}
+
+/* ========================================
+   EMPTY STATE
+   ======================================== */
+.empty-state {
+    text-align: center;
+    padding: 2rem 1rem;
+    color: var(--text-tertiary);
+}
+
+.empty-state .hint {
+    font-size: 0.875rem;
+    margin-top: 0.5rem;
+}
+
+/* ========================================
+   CONTEXT MENU
+   ======================================== */
+.context-menu {
+    position: fixed;
+    background: var(--bg-secondary);
+    border: 1px solid var(--border-color);
+    border-radius: 8px;
+    padding: 0.5rem 0;
+    min-width: 200px;
+    box-shadow: var(--shadow-lg);
+    z-index: 1500;
+    animation: contextMenuAppear 0.15s ease;
+}
+
+@keyframes contextMenuAppear {
+    from {
+        opacity: 0;
+        transform: scale(0.95) translateY(-5px);
+    }
+    to {
+        opacity: 1;
+        transform: scale(1) translateY(0);
+    }
+}
+
+.context-menu-item {
+    padding: 0.75rem 1rem;
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    cursor: pointer;
+    transition: background 0.15s;
+    color: var(--text-primary);
+}
+
+.context-menu-item:hover {
+    background: var(--bg-hover);
+}
+
+.context-menu-item.danger {
+    color: var(--error);
+}
+
+.context-menu-item.danger:hover {
+    background: rgba(248, 113, 113, 0.1);
+}
+
+.context-icon {
+    font-size: 1.1rem;
+    width: 1.5rem;
+    text-align: center;
+}
+
+.context-menu-divider {
+    height: 1px;
+    background: var(--border-color);
+    margin: 0.5rem 0;
+}
+
+/* ========================================
+   SCROLLBAR
+   ======================================== */
+::-webkit-scrollbar {
+    width: 8px;
+    height: 8px;
+}
+
+::-webkit-scrollbar-track {
+    background: var(--bg-secondary);
+}
+
+::-webkit-scrollbar-thumb {
+    background: var(--border-color);
+    border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+    background: var(--accent-purple);
+}
+
+/* ========================================
+   RESPONSIVE - LARGE SCREENS (1440px+)
+   ======================================== */
+@media (min-width: 1440px) {
+    .editor-workspace {
+        grid-template-columns: 1fr 1fr;
+    }
+
+    .markdown-preview {
+        max-width: 1000px;
+        margin: 0 auto;
+    }
+
+    .modal-content {
+        max-width: 700px;
+    }
+
+    .modal-large {
+        max-width: 1000px;
+    }
+}
+
+/* ========================================
+   RESPONSIVE - TABLET (768px - 1024px)
+   ======================================== */
+@media (max-width: 1024px) {
+    /* Editor: Single pane with toggle */
+    .editor-workspace {
+        grid-template-columns: 1fr;
+        position: relative;
+    }
+
+    .editor-pane,
+    .preview-pane {
+        height: calc(100vh - 145px);
+    }
+
+    /* Preview hidden by default on tablet, toggle via JS */
+    .preview-pane {
+        display: none;
+        position: absolute;
+        top: 0;
+        left: 0;
+        right: 0;
+        bottom: 0;
+        background: var(--bg-primary);
+        z-index: 10;
+    }
+
+    .preview-pane.active {
+        display: block;
+    }
+
+    /* Sidebar overlay on tablet */
+    .main-container.sidebar-open {
+        grid-template-columns: 280px 1fr;
+    }
+
+    /* Toolbar adjustments */
+    .editor-toolbar {
+        padding: 0.5rem;
+        gap: 0.25rem;
+        overflow-x: auto;
+        flex-wrap: nowrap;
+    }
+
+    .toolbar-btn {
+        padding: 0.35rem 0.6rem;
+        font-size: 0.8rem;
+        flex-shrink: 0;
+    }
+
+    /* Header */
+    .app-header {
+        padding: 0.5rem 1rem;
+    }
+
+    .logo {
+        font-size: 1rem;
+    }
+
+    .version {
+        font-size: 0.6rem;
+        padding: 0.1rem 0.3rem;
+    }
+
+    /* Modals */
+    .modal-content {
+        width: 95%;
+        max-height: 85vh;
+    }
+
+    .modal-large {
+        max-width: 95%;
+    }
+
+    .ai-tools-grid,
+    .export-options,
+    .templates-grid {
+        grid-template-columns: repeat(2, 1fr);
+    }
+}
+
+/* ========================================
+   RESPONSIVE - MOBILE (< 768px)
+   ======================================== */
+@media (max-width: 768px) {
+    /* Header: Stack layout */
+    .app-header {
+        grid-template-columns: 1fr;
+        gap: 0.5rem;
+        padding: 0.5rem;
+    }
+
+    .header-left {
+        justify-content: center;
+    }
+
+    .header-center {
+        order: 2;
+    }
+
+    .header-right {
+        order: 1;
+        justify-content: center;
+        flex-wrap: wrap;
+        gap: 0.25rem;
+    }
+
+    .logo {
+        font-size: 0.95rem;
+    }
+
+    .logo .icon {
+        font-size: 1.2rem;
+    }
+
+    .version {
+        display: none;
+    }
+
+    /* Document title */
+    .doc-title-input {
+        font-size: 0.95rem;
+    }
+
+    .doc-stats {
+        font-size: 0.65rem;
+        flex-wrap: wrap;
+        justify-content: center;
+    }
+
+    .separator {
+        margin: 0 0.25rem;
+    }
+
+    /* Buttons */
+    .btn-icon {
+        padding: 0.4rem 0.6rem;
+        font-size: 1rem;
+    }
+
+    /* Sidebar: Full overlay on mobile */
+    .sidebar-left {
+        position: fixed;
+        top: 0;
+        left: 0;
+        width: 100%;
+        height: 100%;
+        z-index: 100;
+        transform: translateX(-100%);
+        transition: transform 0.3s ease;
+    }
+
+    .sidebar-left:not(.collapsed) {
+        transform: translateX(0);
+    }
+
+    .main-container {
+        grid-template-columns: 1fr !important;
+    }
+
+    .main-container.sidebar-open {
+        grid-template-columns: 1fr !important;
+    }
+
+    /* Toolbar: Scrollable horizontal */
+    .editor-toolbar {
+        padding: 0.4rem;
+        gap: 0.2rem;
+        overflow-x: auto;
+        -webkit-overflow-scrolling: touch;
+        scrollbar-width: none;
+    }
+
+    .editor-toolbar::-webkit-scrollbar {
+        display: none;
+    }
+
+    .toolbar-group {
+        flex-shrink: 0;
+    }
+
+    .toolbar-btn {
+        padding: 0.3rem 0.5rem;
+        font-size: 0.75rem;
+        min-width: 32px;
+    }
+
+    .toolbar-separator {
+        height: 1rem;
+        margin: 0 0.15rem;
+    }
+
+    /* Editor area */
+    .editor-pane,
+    .preview-pane {
+        padding: 1rem;
+        height: calc(100vh - 180px);
+    }
+
+    #markdown-editor {
+        font-size: 0.9rem;
+        line-height: 1.6;
+    }
+
+    /* Preview */
+    .markdown-preview {
+        font-size: 0.9rem;
+        line-height: 1.7;
+    }
+
+    .markdown-preview h1 {
+        font-size: 1.5rem;
+    }
+
+    .markdown-preview h2 {
+        font-size: 1.25rem;
+    }
+
+    .markdown-preview h3 {
+        font-size: 1.1rem;
+    }
+
+    /* Modals: Full screen on mobile */
+    .modal-content {
+        width: 100%;
+        max-width: 100%;
+        height: 100%;
+        max-height: 100%;
+        border-radius: 0;
+    }
+
+    .modal-header {
+        padding: 1rem;
+    }
+
+    .modal-header h2 {
+        font-size: 1.1rem;
+    }
+
+    .modal-body {
+        padding: 1rem;
+    }
+
+    .modal-footer {
+        padding: 0.75rem 1rem;
+        flex-direction: column;
+        gap: 0.5rem;
+    }
+
+    .modal-footer button {
+        width: 100%;
+    }
+
+    /* AI Tools grid: Single column */
+    .ai-tools-grid {
+        grid-template-columns: 1fr;
+        gap: 0.75rem;
+    }
+
+    .ai-tool-card {
+        padding: 1rem;
+    }
+
+    .tool-icon {
+        font-size: 2rem;
+    }
+
+    .ai-tool-card h3 {
+        font-size: 1rem;
+    }
+
+    .ai-tool-card p {
+        font-size: 0.8rem;
+    }
+
+    /* Export options: 2 columns */
+    .export-options {
+        grid-template-columns: repeat(2, 1fr);
+        gap: 0.75rem;
+    }
+
+    .export-btn {
+        padding: 1rem;
+    }
+
+    .export-icon {
+        font-size: 2rem;
+    }
+
+    .export-label {
+        font-size: 0.75rem;
+    }
+
+    /* Templates grid */
+    .templates-grid {
+        grid-template-columns: 1fr;
+        gap: 0.75rem;
+    }
+
+    .template-card {
+        padding: 0.75rem;
+    }
+
+    /* Form elements */
+    .form-group {
+        margin-bottom: 1rem;
+    }
+
+    .form-group label {
+        font-size: 0.9rem;
+    }
+
+    .form-group input,
+    .form-group select {
+        padding: 0.6rem;
+        font-size: 0.9rem;
+    }
+
+    .form-group small {
+        font-size: 0.7rem;
+    }
+
+    /* Toast on mobile */
+    #toast-container {
+        left: 0.5rem;
+        right: 0.5rem;
+        top: auto;
+        bottom: 1rem;
+    }
+
+    .toast {
+        min-width: auto;
+        padding: 0.75rem 1rem;
+    }
+
+    .toast-message {
+        font-size: 0.85rem;
+    }
+
+    /* Context menu */
+    .context-menu {
+        min-width: 160px;
+    }
+
+    .context-menu-item {
+        padding: 0.6rem 0.75rem;
+    }
+}
+
+/* ========================================
+   RESPONSIVE - SMALL MOBILE (< 480px)
+   ======================================== */
+@media (max-width: 480px) {
+    /* Even more compact header */
+    .header-right {
+        gap: 0.15rem;
+    }
+
+    .btn-icon {
+        padding: 0.35rem 0.5rem;
+        font-size: 0.9rem;
+    }
+
+    /* Toolbar: Essential buttons only visible */
+    .toolbar-btn {
+        padding: 0.25rem 0.4rem;
+        font-size: 0.7rem;
+        min-width: 28px;
+    }
+
+    /* Editor */
+    .editor-pane,
+    .preview-pane {
+        padding: 0.75rem;
+        height: calc(100vh - 160px);
+    }
+
+    #markdown-editor {
+        font-size: 0.85rem;
+    }
+
+    /* Stats */
+    .doc-stats {
+        font-size: 0.6rem;
+    }
+
+    /* Document title */
+    .doc-title-input {
+        font-size: 0.85rem;
+    }
+
+    /* Export: Single column */
+    .export-options {
+        grid-template-columns: 1fr;
+    }
+}
+
+/* ========================================
+   MOBILE VIEW TOGGLE (Editor/Preview)
+   ======================================== */
+.mobile-view-toggle {
+    display: none;
+    position: fixed;
+    bottom: 1rem;
+    right: 1rem;
+    z-index: 50;
+    background: var(--gradient-primary);
+    border: none;
+    color: white;
+    padding: 0.75rem 1rem;
+    border-radius: 50px;
+    font-weight: 600;
+    box-shadow: var(--shadow-lg);
+    cursor: pointer;
+    transition:
+        transform 0.2s,
+        box-shadow 0.2s;
+}
+
+.mobile-view-toggle:hover {
+    transform: scale(1.05);
+}
+
+.mobile-view-toggle:active {
+    transform: scale(0.95);
+}
+
+@media (max-width: 1024px) {
+    .mobile-view-toggle {
+        display: flex;
+        align-items: center;
+        gap: 0.5rem;
+    }
+}
+
+/* ========================================
+   ACCESSIBILITY & TOUCH
+   ======================================== */
+@media (hover: none) and (pointer: coarse) {
+    /* Touch-friendly targets */
+    .toolbar-btn,
+    .btn-icon,
+    .filter-tab,
+    .doc-item,
+    .ai-tool-card,
+    .export-btn,
+    .template-card {
+        min-height: 44px;
+    }
+
+    /* Remove hover effects on touch */
+    .toolbar-btn:hover,
+    .btn-icon:hover,
+    .doc-item:hover {
+        transform: none;
+    }
+
+    /* Active states for touch feedback */
+    .toolbar-btn:active,
+    .btn-icon:active {
+        background: var(--bg-active);
+        transform: scale(0.95);
+    }
+}
+
+/* ========================================
+   LANDSCAPE MOBILE
+   ======================================== */
+@media (max-height: 500px) and (orientation: landscape) {
+    .app-header {
+        padding: 0.25rem 0.5rem;
+    }
+
+    .logo {
+        font-size: 0.9rem;
+    }
+
+    .editor-toolbar {
+        padding: 0.25rem;
+    }
+
+    .editor-pane,
+    .preview-pane {
+        height: calc(100vh - 100px);
+        padding: 0.5rem;
+    }
+
+    .modal-content {
+        max-height: 95vh;
+    }
+
+    .modal-body {
+        padding: 0.75rem;
+    }
+}
+
+/* ========================================
+   PRINT STYLES
+   ======================================== */
+@media print {
+    .app-header,
+    .sidebar-left,
+    .editor-toolbar,
+    .editor-pane,
+    .mobile-view-toggle,
+    #toast-container {
+        display: none !important;
+    }
+
+    .main-container {
+        display: block !important;
+    }
+
+    .preview-pane {
+        display: block !important;
+        position: static !important;
+        height: auto !important;
+        padding: 0 !important;
+    }
+
+    .markdown-preview {
+        max-width: 100%;
+        color: black;
+    }
+
+    .markdown-preview a {
+        color: blue;
+        text-decoration: underline;
+    }
+
+    .markdown-preview pre,
+    .markdown-preview code {
+        background: #f5f5f5;
+        border: 1px solid #ddd;
+    }
+}