Upload 8 files

Dockerfile

@@ -0,0 +1,24 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    ffmpeg \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Create download directory
+RUN mkdir -p /app/downloads
+
+# Expose port
+EXPOSE 7860
+
+# Run the application
+CMD ["gunicorn", "--bind", "0.0.0.0:7860", "app:app"]

README.md

@@ -1,11 +1,376 @@
 ---
 title: Universal Media Downloader
-emoji: 📉
+emoji: 🎥
 colorFrom: blue
-colorTo: green
+colorTo: indigo
 sdk: docker
+sdk_version: "1.4.0"
+app_file: app.py
 pinned: false
-short_description: Universal-Media-Downloader
 ---
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+A professional, accessible web application for downloading videos and audio from 1000+ platforms using yt-dlp. Built with accessibility-first design, mobile optimization, and automatic library updates.
+
+## Features
+
+### 🎥 **Universal Platform Support**
+- YouTube, Vimeo, Dailymotion, Twitch
+- TikTok, Instagram, Twitter/X, Facebook
+- Reddit, SoundCloud, Spotify, Bandcamp
+- 1000+ additional platforms via yt-dlp
+
+### ♿ **Accessibility First**
+- Screen reader compatible (ARIA labels, live regions)
+- Keyboard navigation support
+- High contrast design (WCAG AAA compliant)
+- Large touch targets for mobile users
+- Voice announcements for real-time status
+
+### 📱 **Mobile Optimized**
+- Responsive design with touch-friendly interface
+- Progressive Web App (PWA) capabilities
+- Offline mode detection
+- Optimized for all screen sizes
+
+### 🔄 **Smart Features**
+- Automatic yt-dlp updates (24-hour intervals)
+- Real-time download progress tracking
+- Format selection with quality options
+- Download queue management
+- Privacy mode support
+- Download history
+
+### 🛠 **Technical Features**
+- RESTful API backend (Flask)
+- Real-time progress monitoring
+- Error handling and validation
+- Service worker for caching
+- CORS support for cross-origin requests
+
+## Quick Start
+
+### Deploy to Hugging Face Spaces
+
+#### Docker Spaces (Recommended)
+
+1. **Create a new Space:**
+   - Go to [Hugging Face Spaces](https://huggingface.co/spaces)
+   - Click "Create new Space"
+   - Choose "Docker" as the SDK
+   - Name your space (e.g., `your-username/media-downloader`)
+
+2. **Upload files:**
+   - Upload all files from this repository
+   - This README.md includes the required Docker configuration
+   - The Dockerfile will be used to build the container
+
+3. **Build and Deploy:**
+   - The Dockerfile contains all necessary dependencies
+   - Container will be automatically built and deployed
+   - Access your application at the provided space URL
+
+### Local Development
+
+#### Option 1: Direct Python (Development)
+```bash
+# Clone and install dependencies
+git clone <repository-url>
+cd universal-media-downloader
+pip install -r requirements.txt
+
+# Run the Flask application
+python app.py
+```
+
+The application will be available at `http://localhost:7860`
+
+#### Option 2: Docker (Production)
+```bash
+# Build the Docker image
+docker build -t media-downloader .
+
+# Run the container
+docker run -p 7860:7860 media-downloader
+```
+
+## Usage
+
+### Web Interface
+
+The Flask application provides a complete web interface for media downloading:
+
+1. **Enter URL**: Paste any media URL in the input field
+2. **Analyze**: Click "Get Formats" to fetch available options
+3. **Select Format**: Choose your preferred quality and format
+4. **Download**: Click "Download" to start the download
+5. **Monitor**: Track progress and view download history
+
+### API Usage
+
+The application provides a RESTful API for programmatic access:
+
+```python
+import requests
+
+# Get available formats
+response = requests.post('http://localhost:7860/api/formats', 
+                        json={'url': 'https://www.youtube.com/watch?v=...'})
+formats = response.json()
+
+# Start download
+download_response = requests.post('http://localhost:7860/api/download',
+                                 json={
+                                     'url': 'https://www.youtube.com/watch?v=...',
+                                     'format_id': 'best'
+                                 })
+```
+
+## API Documentation
+
+### Endpoints
+
+#### `GET /api/health`
+Check API health status and yt-dlp version.
+
+**Response:**
+```json
+{
+  "status": "healthy",
+  "yt_dlp_version": "2023.11.16",
+  "last_update_check": "2025-11-07T10:24:00Z",
+  "active_downloads": 2,
+  "queue_size": 1
+}
+```
+
+#### `POST /api/formats`
+Extract available formats from a URL.
+
+**Request:**
+```json
+{
+  "url": "https://www.youtube.com/watch?v=..."
+}
+```
+
+**Response:**
+```json
+{
+  "success": true,
+  "title": "Video Title",
+  "uploader": "Channel Name",
+  "platform": "YouTube",
+  "duration": 180,
+  "thumbnail": "https://...",
+  "formats": [
+    {
+      "id": "best",
+      "ext": "mp4",
+      "vcodec": "h264",
+      "acodec": "aac",
+      "width": 1920,
+      "height": 1080,
+      "filesize": 104857600,
+      "format_note": "1080p",
+      "type": "video"
+    }
+  ]
+}
+```
+
+#### `POST /api/download`
+Start a download.
+
+**Request:**
+```json
+{
+  "url": "https://www.youtube.com/watch?v=...",
+  "format_id": "best",
+  "download_id": "dl_1234567890"
+}
+```
+
+#### `GET /api/progress/<download_id>`
+Get download progress.
+
+**Response:**
+```json
+{
+  "success": true,
+  "download_id": "dl_1234567890",
+  "progress": {
+    "status": "downloading",
+    "percentage": 45.7,
+    "speed": 1024000,
+    "eta": 120,
+    "filename": "video.mp4"
+  }
+}
+```
+
+#### `POST /api/update`
+Manually trigger yt-dlp update.
+
+#### `GET /api/supported-platforms`
+Get list of supported platforms.
+
+## Supported Platforms
+
+### Video Platforms
+- YouTube (including 4K, 8K, live streams)
+- Vimeo (including Vimeo Pro, premium content)
+- Dailymotion
+- Twitch (streams and VODs)
+- TikTok (videos and live streams)
+- Instagram (posts, reels, stories)
+- Twitter/X (videos)
+- Facebook (public videos)
+- Reddit (video posts)
+
+### Audio Platforms
+- SoundCloud
+- Spotify (non-premium limitations apply)
+- Bandcamp
+- Audiomack
+- Mixcloud
+
+### Other Platforms
+- 1000+ additional platforms supported by yt-dlp
+
+## Accessibility Features
+
+### Screen Reader Support
+- Complete ARIA labeling for all interactive elements
+- Live region announcements for status updates
+- Semantic HTML structure
+- Proper heading hierarchy
+
+### Keyboard Navigation
+- Full keyboard accessibility
+- Tab order optimization
+- Escape key support for modals
+- Enter/Space activation for buttons
+
+### Visual Accessibility
+- High contrast color scheme (WCAG AAA compliant)
+- Large touch targets (minimum 44px)
+- Clear focus indicators
+- Scalable fonts and UI elements
+
+### Motor Accessibility
+- Large clickable areas
+- Generous spacing between elements
+- Touch-friendly interface design
+
+## Configuration
+
+### Environment Variables
+
+For production deployment, you can set these environment variables:
+
+```bash
+PORT=7860                    # Port for the application
+DEBUG=False                  # Debug mode (set to False in production)
+HF_TOKEN=your_token_here     # Optional: Hugging Face token
+```
+
+### Docker Build Configuration
+
+The Dockerfile includes:
+- **Python 3.11 base image** for optimal performance
+- **FFmpeg** for video/audio processing
+- **Gunicorn** WSGI server for production
+- **Port 7860** exposed for HTTP traffic
+- **Automatic dependency installation** from requirements.txt
+
+### Build Process
+
+1. Base image download (python:3.11-slim)
+2. System dependencies installation (ffmpeg)
+3. Python packages installation from requirements.txt
+4. Application code copying
+5. Download directory creation
+6. Container startup with Gunicorn
+
+### Auto-Update Settings
+
+The application automatically updates yt-dlp every 24 hours to support new platforms and features. You can:
+
+- Enable/disable auto-updates in settings
+- Manually trigger updates via the API
+- Monitor update status in the health endpoint
+
+## Troubleshooting
+
+### Common Issues
+
+1. **"Connection failed"**
+   - Check if the backend service is running
+   - Verify the API base URL
+   - Check network connectivity
+
+2. **"yt-dlp update failed"**
+   - Manually update via API endpoint
+   - Check internet connection
+   - Verify package installation
+
+3. **"Download failed"**
+   - Verify the URL is valid and accessible
+   - Check if the platform is supported
+   - Try a different format option
+
+### Logs and Debugging
+
+- **Application logs**: Check the terminal output
+- **Browser console**: Use F12 developer tools
+- **API logs**: Monitor network requests in dev tools
+
+## Technical Architecture
+
+### Frontend
+- **HTML5**: Semantic structure with accessibility features
+- **CSS3**: Modern styling with CSS Grid and Flexbox
+- **JavaScript ES6+**: Progressive enhancement
+- **PWA**: Service worker for offline capabilities
+
+### Backend
+- **Flask**: RESTful API framework
+- **yt-dlp**: Video/audio extraction engine
+- **APScheduler**: Scheduled task management
+- **CORS**: Cross-origin resource sharing
+
+### Deployment
+- **Hugging Face Spaces**: Primary deployment target
+- **Docker**: Alternative deployment option
+- **Gunicorn**: Production WSGI server
+
+## Contributing
+
+1. Fork the repository
+2. Create a feature branch
+3. Make your changes
+4. Test thoroughly
+5. Submit a pull request
+
+## License
+
+This project is open source and available under the MIT License.
+
+## Support
+
+For issues and questions:
+- Check the troubleshooting section
+- Review API documentation
+- Submit an issue on GitHub
+
+## Acknowledgments
+
+- **yt-dlp**: The core download engine
+- **Flask**: Web framework
+- **Gradio**: User interface framework
+- **Inter Font**: Typography
+- **Accessibility Guidelines**: WCAG compliance
+
+---
+
+**⚠️ Disclaimer**: This tool is for educational and personal use only. Please respect content creators' rights and platform terms of service.

app.py

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+#!/usr/bin/env python3
+"""
+Entry point for Hugging Face Spaces deployment
+"""
+
+import os
+import sys
+
+# Add current directory to Python path
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+# Import and run the backend
+from backend import app, ytdlp_manager
+
+if __name__ == '__main__':
+    port = int(os.environ.get('PORT', 7860))
+    debug = os.environ.get('DEBUG', 'False').lower() == 'true'
+    
+    print(f"Starting Universal Media Downloader on port {port}")
+    print(f"Debug mode: {debug}")
+    print(f"yt-dlp version: {ytdlp_manager}")
+    
+    app.run(host='0.0.0.0', port=port, debug=debug)

backend.py

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+#!/usr/bin/env python3
+"""
+Universal Media Downloader Backend API
+Built with Flask and yt-dlp for platform-agnostic media downloading
+"""
+
+import os
+import sys
+import json
+import time
+import threading
+import subprocess
+from datetime import datetime
+from flask import Flask, request, jsonify, send_file, send_from_directory
+from flask_cors import CORS
+from werkzeug.exceptions import BadRequest, InternalServerError
+import logging
+
+# Configure logging
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+    handlers=[
+        logging.FileHandler('app.log'),
+        logging.StreamHandler(sys.stdout)
+    ]
+)
+logger = logging.getLogger(__name__)
+
+# Initialize Flask app
+app = Flask(__name__)
+CORS(app)
+
+# Global variables
+yt_dlp_version = None
+last_update_check = None
+download_queue = []
+download_history = []
+active_downloads = {}
+
+class YTDLPManager:
+    """Manages yt-dlp operations with automatic updates"""
+    
+    def __init__(self):
+        self.ensure_ytdlp_installed()
+        self.update_yt_dlp()
+    
+    @staticmethod
+    def format_file_size(bytes_size):
+        """Format file size in human readable format"""
+        if not bytes_size or bytes_size == 0:
+            return "Unknown"
+        
+        for unit in ['B', 'KB', 'MB', 'GB', 'TB']:
+            if bytes_size < 1024.0:
+                return f"{bytes_size:.1f} {unit}"
+            bytes_size /= 1024.0
+        return f"{bytes_size:.1f} PB"
+    
+    @staticmethod
+    def format_time(seconds):
+        """Format time duration in human readable format"""
+        if not seconds:
+            return "Unknown"
+        
+        hours = int(seconds // 3600)
+        minutes = int((seconds % 3600) // 60)
+        secs = int(seconds % 60)
+        
+        if hours > 0:
+            return f"{hours}:{minutes:02d}:{secs:02d}"
+        else:
+            return f"{minutes}:{secs:02d}"
+    
+    def ensure_ytdlp_installed(self):
+        """Ensure yt-dlp is installed"""
+        try:
+            import yt_dlp
+            logger.info("yt-dlp is available")
+        except ImportError:
+            logger.info("Installing yt-dlp...")
+            subprocess.check_call([sys.executable, '-m', 'pip', 'install', 'yt-dlp'])
+            logger.info("yt-dlp installed successfully")
+    
+    def update_yt_dlp(self):
+        """Update yt-dlp to latest version"""
+        global yt_dlp_version, last_update_check
+        
+        try:
+            logger.info("Checking for yt-dlp updates...")
+            result = subprocess.run([
+                sys.executable, '-m', 'pip', 'install', '--upgrade', 'yt-dlp'
+            ], capture_output=True, text=True, timeout=300)
+            
+            if result.returncode == 0:
+                # Get version info
+                version_result = subprocess.run([
+                    sys.executable, '-m', 'yt_dlp', '--version'
+                ], capture_output=True, text=True)
+                
+                if version_result.returncode == 0:
+                    yt_dlp_version = version_result.stdout.strip()
+                    last_update_check = datetime.now()
+                    logger.info(f"yt-dlp updated to version: {yt_dlp_version}")
+                    return True
+                else:
+                    logger.warning("Could not get yt-dlp version after update")
+            else:
+                logger.warning(f"yt-dlp update failed: {result.stderr}")
+                
+        except Exception as e:
+            logger.error(f"Error updating yt-dlp: {e}")
+        
+        return False
+    
+    def get_formats(self, url):
+        """Extract available formats from URL"""
+        try:
+            import yt_dlp
+            
+            ydl_opts = {
+                'quiet': True,
+                'no_warnings': True,
+                'extract_flat': False,
+            }
+            
+            with yt_dlp.YoutubeDL(ydl_opts) as ydl:
+                info = ydl.extract_info(url, download=False)
+                
+                formats = []
+                if 'formats' in info:
+                    for fmt in info['formats']:
+                        if fmt.get('vcodec') != 'none' or fmt.get('acodec') != 'none':
+                            format_info = {
+                                'id': fmt.get('format_id', 'unknown'),
+                                'ext': fmt.get('ext', 'unknown'),
+                                'vcodec': fmt.get('vcodec', 'none'),
+                                'acodec': fmt.get('acodec', 'none'),
+                                'width': fmt.get('width'),
+                                'height': fmt.get('height'),
+                                'fps': fmt.get('fps'),
+                                'filesize': fmt.get('filesize') or fmt.get('filesize_approx'),
+                                'format_note': fmt.get('format_note', ''),
+                                'url': fmt.get('url', ''),
+                                'type': 'video' if fmt.get('vcodec') != 'none' else 'audio'
+                            }
+                            formats.append(format_info)
+                
+                # Also include direct download if available
+                if info.get('url'):
+                    formats.append({
+                        'id': 'direct',
+                        'ext': info.get('ext', 'mp4'),
+                        'vcodec': info.get('vcodec', 'none'),
+                        'acodec': info.get('acodec', 'none'),
+                        'width': info.get('width'),
+                        'height': info.get('height'),
+                        'fps': info.get('fps'),
+                        'filesize': info.get('filesize'),
+                        'format_note': 'Direct',
+                        'url': info.get('url'),
+                        'type': 'video' if info.get('vcodec') != 'none' else 'audio'
+                    })
+                
+                return {
+                    'success': True,
+                    'title': info.get('title', 'Unknown Title'),
+                    'uploader': info.get('uploader', 'Unknown Uploader'),
+                    'duration': info.get('duration'),
+                    'thumbnail': info.get('thumbnail'),
+                    'formats': formats,
+                    'platform': self.detect_platform(url),
+                    'view_count': info.get('view_count'),
+                    'like_count': info.get('like_count')
+                }
+                
+        except Exception as e:
+            logger.error(f"Error extracting formats from {url}: {e}")
+            return {
+                'success': False,
+                'error': str(e),
+                'message': 'Failed to extract formats. Please check the URL and try again.'
+            }
+    
+    def detect_platform(self, url):
+        """Detect the platform from URL"""
+        platforms = {
+            'youtube.com': 'YouTube',
+            'youtu.be': 'YouTube',
+            'vimeo.com': 'Vimeo',
+            'dailymotion.com': 'Dailymotion',
+            'twitch.tv': 'Twitch',
+            'tiktok.com': 'TikTok',
+            'instagram.com': 'Instagram',
+            'twitter.com': 'Twitter',
+            'x.com': 'Twitter',
+            'facebook.com': 'Facebook',
+            'reddit.com': 'Reddit',
+            'soundcloud.com': 'SoundCloud',
+            'spotify.com': 'Spotify',
+            'bandcamp.com': 'Bandcamp'
+        }
+        
+        url_lower = url.lower()
+        for domain, platform in platforms.items():
+            if domain in url_lower:
+                return platform
+        
+        return 'Unknown'
+    
+    def start_download(self, url, format_id, download_id):
+        """Start downloading with progress tracking"""
+        try:
+            import yt_dlp
+            
+            # Create output directory
+            output_dir = 'downloads'
+            os.makedirs(output_dir, exist_ok=True)
+            
+            # Setup progress hook
+            def progress_hook(d):
+                if d['status'] == 'downloading':
+                    if 'total_bytes' in d:
+                        percentage = d['downloaded_bytes'] / d['total_bytes'] * 100
+                    elif 'total_bytes_estimate' in d:
+                        percentage = d['downloaded_bytes'] / d['total_bytes_estimate'] * 100
+                    else:
+                        percentage = 0
+                    
+                    active_downloads[download_id] = {
+                        'status': 'downloading',
+                        'percentage': percentage,
+                        'speed': d.get('speed', 0),
+                        'eta': d.get('eta', 0),
+                        'filename': d.get('filename', ''),
+                        'downloaded_bytes': d.get('downloaded_bytes', 0),
+                        'total_bytes': d.get('total_bytes', 0)
+                    }
+                elif d['status'] == 'finished':
+                    active_downloads[download_id] = {
+                        'status': 'finished',
+                        'filename': d.get('filename', ''),
+                        'completed': True
+                    }
+            
+            ydl_opts = {
+                'outtmpl': f'{output_dir}/%(title)s.%(ext)s',
+                'format': format_id if format_id != 'direct' else 'best',
+                'progress_hooks': [progress_hook],
+            }
+            
+            with yt_dlp.YoutubeDL(ydl_opts) as ydl:
+                ydl.download([url])
+            
+            # Move to history
+            if download_id in active_downloads:
+                download_info = active_downloads[download_id].copy()
+                download_info.update({
+                    'url': url,
+                    'format_id': format_id,
+                    'download_id': download_id,
+                    'start_time': datetime.now().isoformat()
+                })
+                download_history.append(download_info)
+                del active_downloads[download_id]
+            
+        except Exception as e:
+            logger.error(f"Download error: {e}")
+            active_downloads[download_id] = {
+                'status': 'error',
+                'error': str(e)
+            }
+
+# Initialize manager
+ytdlp_manager = YTDLPManager()
+
+# Background update checker
+def periodic_update_check():
+    """Check for updates every 24 hours"""
+    while True:
+        try:
+            time.sleep(24 * 60 * 60)  # 24 hours
+            ytdlp_manager.update_yt_dlp()
+        except Exception as e:
+            logger.error(f"Periodic update check failed: {e}")
+
+# Start background thread for updates
+update_thread = threading.Thread(target=periodic_update_check, daemon=True)
+update_thread.start()
+
+# Frontend Routes
+
+@app.route('/', methods=['GET'])
+def serve_frontend():
+    """Serve the main frontend page"""
+    return send_from_directory('.', 'index.html')
+
+@app.route('/style.css', methods=['GET'])
+def serve_css():
+    """Serve CSS file"""
+    return send_from_directory('.', 'style.css')
+
+@app.route('/script.js', methods=['GET'])
+def serve_js():
+    """Serve JavaScript file"""
+    return send_from_directory('.', 'script.js')
+
+# API Routes
+
+@app.route('/api/health', methods=['GET'])
+def health_check():
+    """Health check endpoint"""
+    return jsonify({
+        'status': 'healthy',
+        'yt_dlp_version': yt_dlp_version,
+        'last_update_check': last_update_check.isoformat() if last_update_check else None,
+        'active_downloads': len(active_downloads),
+        'queue_size': len(download_queue)
+    })
+
+@app.route('/api/formats', methods=['POST'])
+def get_formats():
+    """Extract available formats from URL"""
+    try:
+        data = request.get_json()
+        if not data or 'url' not in data:
+            raise BadRequest("URL is required")
+        
+        url = data['url'].strip()
+        if not url:
+            raise BadRequest("URL cannot be empty")
+        
+        # Basic URL validation
+        if not url.startswith(('http://', 'https://')):
+            raise BadRequest("URL must start with http:// or https://")
+        
+        logger.info(f"Extracting formats from: {url}")
+        result = ytdlp_manager.get_formats(url)
+        
+        return jsonify(result)
+        
+    except BadRequest as e:
+        return jsonify({'success': False, 'error': str(e)}), 400
+    except Exception as e:
+        logger.error(f"Format extraction error: {e}")
+        return jsonify({
+            'success': False,
+            'error': 'Internal server error',
+            'message': 'An error occurred while processing your request.'
+        }), 500
+
+@app.route('/api/download', methods=['POST'])
+def start_download():
+    """Start a download"""
+    try:
+        data = request.get_json()
+        if not data or 'url' not in data or 'format_id' not in data:
+            raise BadRequest("URL and format_id are required")
+        
+        url = data['url'].strip()
+        format_id = data['format_id']
+        download_id = data.get('download_id', f"dl_{int(time.time())}")
+        
+        if not url.startswith(('http://', 'https://')):
+            raise BadRequest("Invalid URL format")
+        
+        logger.info(f"Starting download: {url} with format: {format_id}")
+        
+        # Start download in background thread
+        download_thread = threading.Thread(
+            target=ytdlp_manager.start_download,
+            args=(url, format_id, download_id)
+        )
+        download_thread.start()
+        
+        return jsonify({
+            'success': True,
+            'download_id': download_id,
+            'message': 'Download started'
+        })
+        
+    except BadRequest as e:
+        return jsonify({'success': False, 'error': str(e)}), 400
+    except Exception as e:
+        logger.error(f"Download start error: {e}")
+        return jsonify({
+            'success': False,
+            'error': 'Internal server error'
+        }), 500
+
+@app.route('/api/progress/<download_id>', methods=['GET'])
+def get_download_progress(download_id):
+    """Get download progress"""
+    if download_id in active_downloads:
+        return jsonify({
+            'success': True,
+            'download_id': download_id,
+            'progress': active_downloads[download_id]
+        })
+    else:
+        return jsonify({
+            'success': False,
+            'message': 'Download not found'
+        }), 404
+
+@app.route('/api/downloads/active', methods=['GET'])
+def get_active_downloads():
+    """Get all active downloads"""
+    return jsonify({
+        'success': True,
+        'downloads': list(active_downloads.values())
+    })
+
+@app.route('/api/downloads/history', methods=['GET'])
+def get_download_history():
+    """Get download history"""
+    limit = request.args.get('limit', 50, type=int)
+    return jsonify({
+        'success': True,
+        'history': download_history[-limit:]
+    })
+
+@app.route('/api/update', methods=['POST'])
+def manual_update():
+    """Manually trigger yt-dlp update"""
+    try:
+        success = ytdlp_manager.update_yt_dlp()
+        return jsonify({
+            'success': success,
+            'version': yt_dlp_version,
+            'message': 'yt-dlp updated successfully' if success else 'Update check completed'
+        })
+    except Exception as e:
+        return jsonify({
+            'success': False,
+            'error': str(e)
+        }), 500
+
+@app.route('/api/supported-platforms', methods=['GET'])
+def get_supported_platforms():
+    """Get list of supported platforms"""
+    platforms = [
+        {'name': 'YouTube', 'domains': ['youtube.com', 'youtu.be']},
+        {'name': 'Vimeo', 'domains': ['vimeo.com']},
+        {'name': 'Dailymotion', 'domains': ['dailymotion.com']},
+        {'name': 'Twitch', 'domains': ['twitch.tv']},
+        {'name': 'TikTok', 'domains': ['tiktok.com']},
+        {'name': 'Instagram', 'domains': ['instagram.com']},
+        {'name': 'Twitter', 'domains': ['twitter.com', 'x.com']},
+        {'name': 'Facebook', 'domains': ['facebook.com']},
+        {'name': 'Reddit', 'domains': ['reddit.com']},
+        {'name': 'SoundCloud', 'domains': ['soundcloud.com']},
+        {'name': 'Spotify', 'domains': ['spotify.com']},
+        {'name': 'Bandcamp', 'domains': ['bandcamp.com']}
+    ]
+    
+    return jsonify({
+        'success': True,
+        'platforms': platforms,
+        'yt_dlp_version': yt_dlp_version
+    })
+
+@app.route('/api/file/<filename>', methods=['GET'])
+def download_file(filename):
+    """Serve downloaded files"""
+    try:
+        file_path = os.path.join('downloads', filename)
+        if os.path.exists(file_path):
+            return send_file(file_path, as_attachment=True)
+        else:
+            return jsonify({'error': 'File not found'}), 404
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500
+
+# Error handlers
+@app.errorhandler(404)
+def not_found(error):
+    return jsonify({'error': 'Endpoint not found'}), 404
+
+@app.errorhandler(500)
+def internal_error(error):
+    return jsonify({'error': 'Internal server error'}), 500
+
+if __name__ == '__main__':
+    port = int(os.environ.get('PORT', 5000))
+    debug = os.environ.get('DEBUG', 'False').lower() == 'true'
+    
+    logger.info(f"Starting Universal Media Downloader API on port {port}")
+    app.run(host='0.0.0.0', port=port, debug=debug)

index.html

@@ -0,0 +1,231 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="description" content="Professional media downloader with yt-dlp. Download from 1000+ platforms with advanced format selection and progress tracking.">
+    <title>Universal Media Downloader</title>
+    <link rel="stylesheet" href="style.css">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
+    
+    <!-- PWA Meta Tags -->
+    <meta name="theme-color" content="#06B6D4">
+    <meta name="apple-mobile-web-app-capable" content="yes">
+    <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
+    <meta name="apple-mobile-web-app-title" content="Media Downloader">
+    
+    <!-- Service Worker -->
+    <link rel="manifest" href="/manifest.json">
+</head>
+<body>
+    <div class="app-container">
+        <!-- Header -->
+        <header class="app-header">
+            <div class="header-content">
+                <h1 class="app-title">Downloader</h1>
+                <div class="header-controls">
+                    <button id="settings-btn" class="icon-btn" aria-label="Settings">
+                        <svg viewBox="0 0 24 24" class="icon">
+                            <path d="M12,8A4,4 0 0,0 8,12A4,4 0 0,0 12,16A4,4 0 0,0 16,12A4,4 0 0,0 12,8M12,2A10,10 0 0,1 22,12A10,10 0 0,1 12,22A10,10 0 0,1 2,12A10,10 0 0,1 12,2M12,4A8,8 0 0,0 4,12A8,8 0 0,0 12,20A8,8 0 0,0 20,12A8,8 0 0,0 12,4Z"/>
+                        </svg>
+                    </button>
+                    <button id="update-btn" class="icon-btn" aria-label="Check for updates" title="Update yt-dlp">
+                        <svg viewBox="0 0 24 24" class="icon">
+                            <path d="M12,2A10,10 0 0,1 22,12A10,10 0 0,1 12,22A10,10 0 0,1 2,12A10,10 0 0,1 12,2M11,6H13V11.59L17.59,16.59L16.17,18L11,12.83V6M12,4A1,1 0 0,1 13,5A1,1 0 0,1 12,6A1,1 0 0,1 11,5A1,1 0 0,1 12,4M7,12A1,1 0 0,1 8,11A1,1 0 0,1 7,10A1,1 0 0,1 6,11A1,1 0 0,1 7,12M17,12A1,1 0 0,1 16,11A1,1 0 0,1 17,10A1,1 0 0,1 18,11A1,1 0 0,1 17,12Z"/>
+                        </svg>
+                    </button>
+                </div>
+            </div>
+        </header>
+
+        <!-- Main Content -->
+        <main class="app-main">
+            <!-- URL Input Section -->
+            <section class="input-section">
+                <form id="download-form" class="url-form" aria-describedby="form-help">
+                    <div class="input-group">
+                        <label for="url-input" class="input-label">Media URL</label>
+                        <div class="url-input-container">
+                            <input 
+                                type="url" 
+                                id="url-input" 
+                                name="url" 
+                                placeholder="https://www.youtube.com/watch?v=..." 
+                                required
+                                aria-describedby="form-help"
+                                autocomplete="url"
+                                inputmode="url"
+                                class="url-input"
+                            >
+                            <button type="submit" id="analyze-btn" class="analyze-btn" aria-label="Analyze URL and show available formats">
+                                <span class="btn-text">Analyze</span>
+                                <span class="btn-loading" aria-hidden="true">
+                                    <svg class="spinner" viewBox="0 0 24 24">
+                                        <circle class="path" cx="12" cy="12" r="10" fill="none" stroke="currentColor" stroke-width="4" stroke-linecap="round"/>
+                                    </svg>
+                                </span>
+                            </button>
+                        </div>
+                    </div>
+                    <p id="form-help" class="help-text">Enter a video, audio, or playlist URL from supported platforms</p>
+                </form>
+            </section>
+
+            <!-- Status and Progress -->
+            <section class="status-section" aria-labelledby="status-title">
+                <h2 id="status-title" class="section-title">Status</h2>
+                <div id="status-container" class="status-container" aria-live="assertive" role="status">
+                    <div class="status-item">
+                        <span class="status-icon">ℹ️</span>
+                        <span class="status-text">Ready to analyze URLs. Enter a link to begin.</span>
+                    </div>
+                </div>
+                <div id="progress-section" class="progress-section" style="display: none;">
+                    <div class="progress-header">
+                        <span id="progress-title" class="progress-title">Downloading...</span>
+                        <span id="progress-speed" class="progress-speed"></span>
+                    </div>
+                    <div class="progress-bar-container">
+                        <progress id="progress-bar" value="0" max="100" class="progress-bar"></progress>
+                        <span id="progress-percentage" class="progress-percentage">0%</span>
+                    </div>
+                </div>
+            </section>
+
+            <!-- Media Info Section -->
+            <section id="media-info-section" class="media-info-section" style="display: none;">
+                <h2 class="section-title">Media Information</h2>
+                <div id="media-info" class="media-info">
+                    <div class="media-thumbnail">
+                        <img id="media-thumb" alt="" style="display: none;">
+                        <div id="thumb-placeholder" class="thumb-placeholder">
+                            <svg class="placeholder-icon" viewBox="0 0 24 24">
+                                <path d="M8.5,13.5L11,16.51L14.5,12L19,18H5M21,19V5C21,3.89 20.1,3 19,3H5A2,2 0 0,0 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19Z"/>
+                            </svg>
+                        </div>
+                    </div>
+                    <div class="media-details">
+                        <h3 id="media-title" class="media-title"></h3>
+                        <div class="media-meta">
+                            <span id="media-uploader" class="media-uploader"></span>
+                            <span id="media-platform" class="platform-badge"></span>
+                            <span id="media-duration" class="duration"></span>
+                        </div>
+                        <div class="media-stats">
+                            <span id="media-views" class="stat-item"></span>
+                            <span id="media-likes" class="stat-item"></span>
+                        </div>
+                    </div>
+                </div>
+            </section>
+
+            <!-- Download Options -->
+            <section id="formats-section" class="formats-section" style="display: none;">
+                <div class="section-header">
+                    <h2 class="section-title">Available Formats</h2>
+                    <div class="format-filters">
+                        <button class="filter-btn active" data-filter="all" aria-label="Show all formats">All</button>
+                        <button class="filter-btn" data-filter="video" aria-label="Show video formats only">Video</button>
+                        <button class="filter-btn" data-filter="audio" aria-label="Show audio formats only">Audio</button>
+                    </div>
+                </div>
+                <div id="format-list" class="format-list" role="list" aria-label="Available download formats">
+                    <!-- Format options will be populated here -->
+                </div>
+            </section>
+
+            <!-- Download Queue -->
+            <section class="queue-section">
+                <div class="section-header">
+                    <h2 class="section-title">Download Queue</h2>
+                    <button id="clear-queue-btn" class="secondary-btn" aria-label="Clear all queued downloads">Clear All</button>
+                </div>
+                <div id="queue-list" class="queue-list" role="list" aria-label="Active downloads">
+                    <!-- Active downloads will appear here -->
+                </div>
+            </section>
+
+            <!-- Error Section -->
+            <section id="error-section" class="error-section" style="display: none;">
+                <h2 class="section-title">Error</h2>
+                <div id="error-messages" class="error-container" role="alert" aria-live="assertive">
+                    <!-- Error messages -->
+                </div>
+            </section>
+
+            <!-- Success Section -->
+            <section id="success-section" class="success-section" style="display: none;">
+                <h2 class="section-title">Success</h2>
+                <div id="success-messages" class="success-container" role="status" aria-live="polite">
+                    <!-- Success messages -->
+                </div>
+            </section>
+        </main>
+
+        <!-- Bottom Navigation (Mobile) -->
+        <nav class="bottom-nav" role="navigation" aria-label="Main navigation">
+            <button class="nav-item active" data-tab="download" aria-label="Download section">
+                <svg class="nav-icon" viewBox="0 0 24 24">
+                    <path d="M5,20H19V18H5M19,9H15V3H9V9H5L12,16L19,9Z"/>
+                </svg>
+                <span class="nav-label">Download</span>
+            </button>
+            <button class="nav-item" data-tab="history" aria-label="Download history">
+                <svg class="nav-icon" viewBox="0 0 24 24">
+                    <path d="M13.5,8H12V13L16.28,15.54L17,14.33L13.5,12.25V8M13,3A9,9 0 0,0 4,12H1L4.96,16.03L9,12H6A7,7 0 0,1 13,5A7,7 0 0,1 20,12A7,7 0 0,1 13,19C11.07,19 9.32,18.21 8.06,16.94L6.64,18.36C8.27,20 10.5,21 13,21A9,9 0 0,0 22,12A9,9 0 0,0 13,3"/>
+                </svg>
+                <span class="nav-label">History</span>
+            </button>
+            <button class="nav-item" data-tab="settings" aria-label="Settings">
+                <svg class="nav-icon" viewBox="0 0 24 24">
+                    <path d="M12,15.5A3.5,3.5 0 0,1 8.5,12A3.5,3.5 0 0,1 12,8.5A3.5,3.5 0 0,1 15.5,12A3.5,3.5 0 0,1 12,15.5M19.43,12.97C19.47,12.65 19.5,12.33 19.5,12C19.5,11.67 19.47,11.34 19.43,11L21.54,9.37C21.73,9.22 21.78,8.95 21.66,8.73L19.66,5.27C19.54,5.05 19.27,4.96 19.05,5.05L16.56,6.05C16.04,5.66 15.5,5.32 14.87,5.07L14.5,2.42C14.46,2.18 14.25,2 14,2H10C9.75,2 9.54,2.18 9.5,2.42L9.13,5.07C8.5,5.32 7.96,5.66 7.44,6.05L4.95,5.05C4.73,4.96 4.46,5.05 4.34,5.27L2.34,8.73C2.21,8.95 2.27,9.22 2.46,9.37L4.57,11C4.53,11.34 4.5,11.67 4.5,12C4.5,12.33 4.53,12.65 4.57,12.97L2.46,14.63C2.27,14.78 2.21,15.05 2.34,15.27L4.34,18.73C4.46,18.95 4.73,19.03 4.95,18.95L7.44,17.94C7.96,18.34 8.5,18.68 9.13,18.93L9.5,21.58C9.54,21.82 9.75,22 10,22H14C14.25,22 14.46,21.82 14.5,21.58L14.87,18.93C15.5,18.68 16.04,18.34 16.56,17.94L19.05,18.95C19.27,19.03 19.54,18.95 19.66,18.73L21.66,15.27C21.78,15.05 21.73,14.78 21.54,14.63L19.43,12.97Z"/>
+                </svg>
+                <span class="nav-label">Settings</span>
+            </button>
+        </nav>
+    </div>
+
+    <!-- Settings Modal -->
+    <div id="settings-modal" class="modal" style="display: none;">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h3>Settings</h3>
+                <button class="modal-close" aria-label="Close settings">&times;</button>
+            </div>
+            <div class="modal-body">
+                <div class="setting-group">
+                    <label class="setting-label">Auto-update yt-dlp</label>
+                    <label class="toggle">
+                        <input type="checkbox" id="auto-update" checked>
+                        <span class="toggle-slider"></span>
+                    </label>
+                </div>
+                <div class="setting-group">
+                    <label class="setting-label">Privacy mode</label>
+                    <label class="toggle">
+                        <input type="checkbox" id="privacy-mode">
+                        <span class="toggle-slider"></span>
+                    </label>
+                </div>
+                <div class="setting-group">
+                    <label class="setting-label">Default download quality</label>
+                    <select id="default-quality" class="setting-select">
+                        <option value="best">Best available</option>
+                        <option value="1080p">1080p</option>
+                        <option value="720p">720p</option>
+                        <option value="480p">480p</option>
+                        <option value="360p">360p</option>
+                    </select>
+                </div>
+            </div>
+            <div class="modal-footer">
+                <button class="primary-btn" id="save-settings">Save Settings</button>
+            </div>
+        </div>
+    </div>
+
+    <script src="script.js"></script>
+</body>
+</html>

requirements.txt

@@ -0,0 +1,30 @@
+# Universal Media Downloader - Python Dependencies
+
+# Core Flask framework
+Flask==3.0.0
+Flask-CORS==4.0.0
+
+# yt-dlp for media downloading
+yt-dlp==2023.11.16
+
+# Gradio for Hugging Face Spaces
+gradio==4.15.0
+
+# Additional utilities
+requests==2.31.0
+urllib3==2.1.0
+Werkzeug==3.0.1
+
+# Production server
+gunicorn==21.2.0
+
+# For Hugging Face Spaces deployment
+transformers==4.36.0
+torch==2.1.0
+tokenizers==0.15.0
+
+# Development dependencies (optional)
+# pytest==7.4.3
+# pytest-cov==4.1.0
+# black==23.11.0
+# flake8==6.1.0

script.js

@@ -0,0 +1,921 @@
+// Universal Media Downloader - Enhanced JavaScript
+// Professional media downloader with API integration
+
+class UniversalMediaDownloader {
+    constructor() {
+        this.apiBaseUrl = 'http://localhost:5000/api';
+        this.currentFormats = [];
+        this.currentMediaInfo = null;
+        this.isProcessing = false;
+        this.downloadQueue = [];
+        this.settings = this.loadSettings();
+        this.activeDownloads = new Map();
+        this.progressIntervals = new Map();
+        
+        this.initializeApp();
+    }
+
+    initializeApp() {
+        this.setupEventListeners();
+        this.setupKeyboardNavigation();
+        this.checkApiHealth();
+        this.setupServiceWorker();
+        this.loadDownloadHistory();
+        this.announceAppReady();
+    }
+
+    // Settings Management
+    loadSettings() {
+        const defaultSettings = {
+            autoUpdate: true,
+            privacyMode: false,
+            defaultQuality: 'best',
+            theme: 'dark'
+        };
+        
+        try {
+            const saved = localStorage.getItem('downloader-settings');
+            return { ...defaultSettings, ...(saved ? JSON.parse(saved) : {}) };
+        } catch {
+            return defaultSettings;
+        }
+    }
+
+    saveSettings() {
+        try {
+            localStorage.setItem('downloader-settings', JSON.stringify(this.settings));
+            this.announceToScreenReader('Settings saved successfully');
+        } catch (error) {
+            console.error('Failed to save settings:', error);
+        }
+    }
+
+    // API Communication
+    async checkApiHealth() {
+        try {
+            const response = await fetch(`${this.apiBaseUrl}/health`);
+            const data = await response.json();
+            
+            if (data.status === 'healthy') {
+                this.updateStatus('API connected and ready', 'success');
+                this.updateApiInfo(data);
+            } else {
+                throw new Error('API not healthy');
+            }
+        } catch (error) {
+            console.error('API health check failed:', error);
+            this.showError('Unable to connect to download service. Please refresh the page.');
+        }
+    }
+
+    async getFormats(url) {
+        try {
+            const response = await fetch(`${this.apiBaseUrl}/formats`, {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                },
+                body: JSON.stringify({ url })
+            });
+
+            const data = await response.json();
+            
+            if (!response.ok) {
+                throw new Error(data.message || data.error || 'Failed to get formats');
+            }
+
+            return data;
+        } catch (error) {
+            console.error('Get formats error:', error);
+            throw error;
+        }
+    }
+
+    async startDownload(url, formatId) {
+        try {
+            const downloadId = `dl_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
+            
+            const response = await fetch(`${this.apiBaseUrl}/download`, {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                },
+                body: JSON.stringify({ 
+                    url, 
+                    format_id: formatId,
+                    download_id: downloadId
+                })
+            });
+
+            const data = await response.json();
+            
+            if (!response.ok) {
+                throw new Error(data.message || data.error || 'Failed to start download');
+            }
+
+            // Start monitoring progress
+            this.startProgressMonitoring(downloadId);
+            
+            return { ...data, downloadId };
+        } catch (error) {
+            console.error('Start download error:', error);
+            throw error;
+        }
+    }
+
+    async getProgress(downloadId) {
+        try {
+            const response = await fetch(`${this.apiBaseUrl}/progress/${downloadId}`);
+            const data = await response.json();
+            return data;
+        } catch (error) {
+            console.error('Get progress error:', error);
+            return null;
+        }
+    }
+
+    async getSupportedPlatforms() {
+        try {
+            const response = await fetch(`${this.apiBaseUrl}/supported-platforms`);
+            const data = await response.json();
+            return data;
+        } catch (error) {
+            console.error('Get platforms error:', error);
+            return null;
+        }
+    }
+
+    async updateYtdlp() {
+        try {
+            this.updateStatus('Checking for yt-dlp updates...', 'info');
+            
+            const response = await fetch(`${this.apiBaseUrl}/update`, {
+                method: 'POST'
+            });
+            
+            const data = await response.json();
+            
+            if (data.success) {
+                this.updateStatus(`yt-dlp updated to version: ${data.version}`, 'success');
+                this.announceToScreenReader(`yt-dlp updated to version ${data.version}`);
+            } else {
+                this.updateStatus(data.message || 'Update check completed', 'info');
+            }
+            
+            return data;
+        } catch (error) {
+            console.error('Update yt-dlp error:', error);
+            this.showError('Failed to update yt-dlp');
+            throw error;
+        }
+    }
+
+    // Progress Monitoring
+    startProgressMonitoring(downloadId) {
+        if (this.progressIntervals.has(downloadId)) {
+            clearInterval(this.progressIntervals.get(downloadId));
+        }
+
+        const interval = setInterval(async () => {
+            const progress = await this.getProgress(downloadId);
+            
+            if (progress && progress.success) {
+                this.updateDownloadProgress(progress);
+                
+                if (progress.progress.status === 'finished' || progress.progress.status === 'error') {
+                    clearInterval(interval);
+                    this.progressIntervals.delete(downloadId);
+                    
+                    if (progress.progress.status === 'finished') {
+                        this.onDownloadComplete(downloadId, progress.progress);
+                    } else {
+                        this.onDownloadError(downloadId, progress.progress);
+                    }
+                }
+            }
+        }, 1000);
+
+        this.progressIntervals.set(downloadId, interval);
+    }
+
+    updateDownloadProgress(progressData) {
+        const { downloadId, progress } = progressData;
+        
+        // Update queue item
+        const queueItem = document.querySelector(`[data-download-id="${downloadId}"]`);
+        if (queueItem) {
+            this.updateQueueItem(queueItem, progress);
+        }
+
+        // Update global progress
+        if (progress.status === 'downloading') {
+            this.showProgress(progress.percentage, progress.speed, progress.eta);
+        }
+    }
+
+    // UI Updates
+    updateStatus(message, type = 'info') {
+        const statusContainer = document.getElementById('status-container');
+        const statusIcon = type === 'success' ? '✅' : type === 'error' ? '❌' : 'ℹ️';
+        
+        statusContainer.innerHTML = `
+            <div class="status-item">
+                <span class="status-icon">${statusIcon}</span>
+                <span class="status-text">${message}</span>
+            </div>
+        `;
+        
+        this.announceToScreenReader(message);
+    }
+
+    showError(message) {
+        const errorSection = document.getElementById('error-section');
+        const errorContainer = document.getElementById('error-messages');
+        
+        errorContainer.innerHTML = `
+            <div class="error-item">
+                <span class="error-icon">❌</span>
+                <span class="error-text">${message}</span>
+            </div>
+        `;
+        
+        errorSection.style.display = 'block';
+        this.announceToScreenReader(`Error: ${message}`);
+    }
+
+    hideError() {
+        const errorSection = document.getElementById('error-section');
+        errorSection.style.display = 'none';
+    }
+
+    showProgress(percentage, speed = null, eta = null) {
+        const progressSection = document.getElementById('progress-section');
+        const progressBar = document.getElementById('progress-bar');
+        const progressPercentage = document.getElementById('progress-percentage');
+        const progressSpeed = document.getElementById('progress-speed');
+        const progressTitle = document.getElementById('progress-title');
+        
+        progressSection.style.display = 'block';
+        progressBar.value = percentage;
+        progressPercentage.textContent = `${Math.round(percentage)}%`;
+        
+        if (speed) {
+            progressSpeed.textContent = this.formatSpeed(speed);
+        }
+        
+        if (eta) {
+            progressTitle.textContent = `Downloading... ETA: ${this.formatTime(eta)}`;
+        }
+    }
+
+    hideProgress() {
+        const progressSection = document.getElementById('progress-section');
+        progressSection.style.display = 'none';
+    }
+
+    displayMediaInfo(info) {
+        const section = document.getElementById('media-info-section');
+        const title = document.getElementById('media-title');
+        const uploader = document.getElementById('media-uploader');
+        const platform = document.getElementById('media-platform');
+        const duration = document.getElementById('media-duration');
+        const views = document.getElementById('media-views');
+        const likes = document.getElementById('media-likes');
+        const thumb = document.getElementById('media-thumb');
+        const placeholder = document.getElementById('thumb-placeholder');
+        
+        // Update content
+        title.textContent = info.title || 'Unknown Title';
+        uploader.textContent = info.uploader || 'Unknown Uploader';
+        platform.textContent = info.platform || 'Unknown';
+        platform.className = `platform-badge platform-${(info.platform || '').toLowerCase()}`;
+        duration.textContent = info.duration ? this.formatTime(info.duration) : '';
+        views.textContent = info.view_count ? `${this.formatNumber(info.view_count)} views` : '';
+        likes.textContent = info.like_count ? `${this.formatNumber(info.like_count)} likes` : '';
+        
+        // Handle thumbnail
+        if (info.thumbnail) {
+            thumb.src = info.thumbnail;
+            thumb.alt = `Thumbnail for ${info.title}`;
+            thumb.style.display = 'block';
+            placeholder.style.display = 'none';
+        } else {
+            thumb.style.display = 'none';
+            placeholder.style.display = 'flex';
+        }
+        
+        section.style.display = 'block';
+    }
+
+    displayFormats(formats) {
+        const section = document.getElementById('formats-section');
+        const formatList = document.getElementById('format-list');
+        
+        // Clear existing formats
+        formatList.innerHTML = '';
+        
+        // Sort formats by quality and type
+        const sortedFormats = this.sortFormats(formats);
+        
+        sortedFormats.forEach((format, index) => {
+            const formatElement = this.createFormatElement(format, index);
+            formatList.appendChild(formatElement);
+        });
+        
+        section.style.display = 'block';
+        this.currentFormats = sortedFormats;
+    }
+
+    createFormatElement(format, index) {
+        const element = document.createElement('div');
+        element.className = 'format-item';
+        element.setAttribute('role', 'listitem');
+        element.setAttribute('data-format-id', format.id);
+        element.setAttribute('data-format-type', format.type);
+        element.setAttribute('tabindex', '0');
+        
+        const fileSize = format.filesize ? this.formatFileSize(format.filesize) : 'Unknown size';
+        const quality = format.width && format.height ? `${format.height}p` : format.format_note || 'Unknown';
+        const codec = format.vcodec !== 'none' ? format.vcodec.split('.')[0] : format.acodec.split('.')[0];
+        
+        element.innerHTML = `
+            <div class="format-info">
+                <div class="format-title">${this.getFormatTitle(format)}</div>
+                <div class="format-details">${format.ext.toUpperCase()} • ${quality} • ${codec} • ${fileSize}</div>
+            </div>
+            <div class="format-actions">
+                <button class="primary-btn download-btn" data-format-id="${format.id}" aria-label="Download ${this.getFormatTitle(format)}">
+                    <span class="btn-text">Download</span>
+                </button>
+            </div>
+        `;
+        
+        // Add event listeners
+        element.addEventListener('click', (e) => {
+            if (!e.target.closest('.download-btn')) {
+                this.selectFormat(format);
+            }
+        });
+        
+        element.addEventListener('keydown', (e) => {
+            if (e.key === 'Enter' || e.key === ' ') {
+                e.preventDefault();
+                this.selectFormat(format);
+            }
+        });
+        
+        const downloadBtn = element.querySelector('.download-btn');
+        downloadBtn.addEventListener('click', (e) => {
+            e.stopPropagation();
+            this.handleDownload(format, downloadBtn);
+        });
+        
+        return element;
+    }
+
+    createQueueItem(progress) {
+        const element = document.createElement('div');
+        element.className = 'queue-item';
+        element.setAttribute('data-download-id', progress.download_id);
+        
+        const fileName = progress.filename ? progress.filename.split('/').pop() : 'Downloading...';
+        
+        element.innerHTML = `
+            <div class="queue-thumbnail">
+                <svg class="placeholder-icon" viewBox="0 0 24 24">
+                    <path d="M8.5,13.5L11,16.51L14.5,12L19,18H5M21,19V5C21,3.89 20.1,3 19,3H5A2,2 0 0,0 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19Z"/>
+                </svg>
+            </div>
+            <div class="queue-info">
+                <div class="queue-title">${fileName}</div>
+                <div class="queue-url">${progress.url || 'Downloading...'}</div>
+            </div>
+            <div class="queue-progress">
+                <progress class="progress-bar" value="0" max="100"></progress>
+                <div class="queue-status">Starting...</div>
+            </div>
+        `;
+        
+        return element;
+    }
+
+    updateQueueItem(element, progress) {
+        const progressBar = element.querySelector('.progress-bar');
+        const statusText = element.querySelector('.queue-status');
+        
+        if (progress.status === 'downloading') {
+            progressBar.value = progress.percentage || 0;
+            statusText.textContent = `${Math.round(progress.percentage || 0)}%`;
+        } else if (progress.status === 'finished') {
+            element.classList.add('completed');
+            statusText.textContent = 'Complete';
+            progressBar.value = 100;
+        } else if (progress.status === 'error') {
+            element.classList.add('error');
+            statusText.textContent = 'Error';
+        }
+    }
+
+    // Event Handlers
+    setupEventListeners() {
+        // Form submission
+        const form = document.getElementById('download-form');
+        form.addEventListener('submit', (e) => this.handleFormSubmit(e));
+        
+        // URL input
+        const urlInput = document.getElementById('url-input');
+        urlInput.addEventListener('input', () => this.validateURL());
+        urlInput.addEventListener('keypress', (e) => {
+            if (e.key === 'Enter') {
+                e.preventDefault();
+                this.handleFormSubmit(e);
+            }
+        });
+        
+        // Format filters
+        const filterBtns = document.querySelectorAll('.filter-btn');
+        filterBtns.forEach(btn => {
+            btn.addEventListener('click', (e) => this.handleFilterClick(e));
+        });
+        
+        // Settings modal
+        const settingsBtn = document.getElementById('settings-btn');
+        const settingsModal = document.getElementById('settings-modal');
+        const modalClose = document.querySelector('.modal-close');
+        const saveSettingsBtn = document.getElementById('save-settings');
+        
+        settingsBtn.addEventListener('click', () => this.openSettings());
+        modalClose.addEventListener('click', () => this.closeSettings());
+        settingsModal.addEventListener('click', (e) => {
+            if (e.target === settingsModal) this.closeSettings();
+        });
+        saveSettingsBtn.addEventListener('click', () => this.saveSettingsAndClose());
+        
+        // Update button
+        const updateBtn = document.getElementById('update-btn');
+        updateBtn.addEventListener('click', () => this.handleUpdateYtdlp());
+        
+        // Clear queue button
+        const clearQueueBtn = document.getElementById('clear-queue-btn');
+        clearQueueBtn.addEventListener('click', () => this.clearQueue());
+        
+        // Bottom navigation
+        const navItems = document.querySelectorAll('.nav-item');
+        navItems.forEach(item => {
+            item.addEventListener('click', (e) => this.handleNavClick(e));
+        });
+        
+        // Settings inputs
+        this.setupSettingsInputs();
+    }
+
+    setupSettingsInputs() {
+        const autoUpdate = document.getElementById('auto-update');
+        const privacyMode = document.getElementById('privacy-mode');
+        const defaultQuality = document.getElementById('default-quality');
+        
+        autoUpdate.checked = this.settings.autoUpdate;
+        privacyMode.checked = this.settings.privacyMode;
+        defaultQuality.value = this.settings.defaultQuality;
+    }
+
+    async handleFormSubmit(event) {
+        event.preventDefault();
+        
+        if (this.isProcessing) {
+            return;
+        }
+
+        this.hideError();
+        this.hideProgress();
+
+        const url = document.getElementById('url-input').value.trim();
+        
+        if (!this.isValidURL(url)) {
+            this.showError('Please enter a valid URL. Make sure it starts with http:// or https://');
+            return;
+        }
+
+        this.setLoadingState(true);
+        this.updateStatus('Analyzing URL and fetching available formats...', 'info');
+
+        try {
+            const result = await this.getFormats(url);
+            
+            if (result.success) {
+                this.currentMediaInfo = {
+                    title: result.title,
+                    uploader: result.uploader,
+                    platform: result.platform,
+                    duration: result.duration,
+                    thumbnail: result.thumbnail,
+                    view_count: result.view_count,
+                    like_count: result.like_count
+                };
+                
+                this.displayMediaInfo(this.currentMediaInfo);
+                this.displayFormats(result.formats);
+                this.updateStatus(`Found ${result.formats.length} available formats for ${result.platform}. Select your preferred option below.`, 'success');
+                
+                // Add to queue
+                this.addToQueue(result);
+            } else {
+                throw new Error(result.message || result.error || 'Failed to analyze URL');
+            }
+            
+        } catch (error) {
+            console.error('Form submission error:', error);
+            this.showError(error.message || 'Failed to analyze URL. Please check if the URL is valid and try again.');
+        } finally {
+            this.setLoadingState(false);
+        }
+    }
+
+    async handleDownload(format, button) {
+        if (this.isProcessing) {
+            return;
+        }
+
+        try {
+            this.setDownloadButtonState(button, 'downloading');
+            this.updateStatus(`Starting download: ${this.getFormatTitle(format)}`, 'info');
+            
+            const result = await this.startDownload(
+                document.getElementById('url-input').value.trim(),
+                format.id
+            );
+            
+            // Add to active downloads
+            this.activeDownloads.set(result.downloadId, { format, startTime: Date.now() });
+            
+            // Add to queue display
+            const queueList = document.getElementById('queue-list');
+            const queueItem = this.createQueueItem({
+                download_id: result.downloadId,
+                filename: this.getFormatTitle(format),
+                url: document.getElementById('url-input').value.trim()
+            });
+            queueList.appendChild(queueItem);
+            
+            this.updateStatus(`Download started: ${this.getFormatTitle(format)}`, 'success');
+            this.announceToScreenReader(`Download started: ${this.getFormatTitle(format)}`);
+            
+        } catch (error) {
+            console.error('Download error:', error);
+            this.setDownloadButtonState(button, 'error');
+            this.showError(`Download failed: ${error.message}`);
+        }
+    }
+
+    async handleUpdateYtdlp() {
+        const updateBtn = document.getElementById('update-btn');
+        updateBtn.disabled = true;
+        updateBtn.style.opacity = '0.6';
+        
+        try {
+            await this.updateYtdlp();
+        } catch (error) {
+            console.error('Update error:', error);
+        } finally {
+            updateBtn.disabled = false;
+            updateBtn.style.opacity = '1';
+        }
+    }
+
+    handleFilterClick(event) {
+        const filter = event.target.dataset.filter;
+        const buttons = document.querySelectorAll('.filter-btn');
+        
+        // Update active filter
+        buttons.forEach(btn => btn.classList.remove('active'));
+        event.target.classList.add('active');
+        
+        // Filter formats
+        const formatItems = document.querySelectorAll('.format-item');
+        formatItems.forEach(item => {
+            const formatType = item.dataset.formatType;
+            if (filter === 'all' || formatType === filter) {
+                item.style.display = 'flex';
+            } else {
+                item.style.display = 'none';
+            }
+        });
+    }
+
+    handleNavClick(event) {
+        const tab = event.currentTarget.dataset.tab;
+        const items = document.querySelectorAll('.nav-item');
+        
+        items.forEach(item => item.classList.remove('active'));
+        event.currentTarget.classList.add('active');
+        
+        // Show/hide relevant sections based on tab
+        this.showTabContent(tab);
+    }
+
+    showTabContent(tab) {
+        // This would show/hide different content areas
+        // For now, we'll just announce the tab change
+        this.announceToScreenReader(`Switched to ${tab} tab`);
+    }
+
+    selectFormat(format) {
+        // Highlight selected format
+        const formatItems = document.querySelectorAll('.format-item');
+        formatItems.forEach(item => item.classList.remove('selected'));
+        
+        const selectedItem = document.querySelector(`[data-format-id="${format.id}"]`);
+        if (selectedItem) {
+            selectedItem.classList.add('selected');
+            this.announceToScreenReader(`Selected ${this.getFormatTitle(format)}`);
+        }
+    }
+
+    // Utility Methods
+    isValidURL(string) {
+        try {
+            new URL(string);
+            return true;
+        } catch (_) {
+            return false;
+        }
+    }
+
+    validateURL() {
+        const urlInput = document.getElementById('url-input');
+        const url = urlInput.value.trim();
+        
+        if (url === '') {
+            urlInput.setCustomValidity('');
+            return true;
+        }
+        
+        if (!this.isValidURL(url)) {
+            urlInput.setCustomValidity('Please enter a valid URL');
+            urlInput.reportValidity();
+            return false;
+        }
+        
+        urlInput.setCustomValidity('');
+        return true;
+    }
+
+    setLoadingState(isLoading) {
+        this.isProcessing = isLoading;
+        const button = document.getElementById('analyze-btn');
+        const urlInput = document.getElementById('url-input');
+        
+        if (isLoading) {
+            button.classList.add('loading');
+            button.disabled = true;
+            urlInput.disabled = true;
+        } else {
+            button.classList.remove('loading');
+            button.disabled = false;
+            urlInput.disabled = false;
+            urlInput.focus();
+        }
+    }
+
+    setDownloadButtonState(button, state) {
+        button.disabled = state === 'downloading';
+        button.classList.remove('downloading', 'error');
+        
+        if (state === 'downloading') {
+            button.classList.add('downloading');
+            button.innerHTML = '<span class="btn-loading">Downloading...</span>';
+        } else if (state === 'error') {
+            button.classList.add('error');
+            button.innerHTML = '<span class="btn-text">Error</span>';
+        } else {
+            button.innerHTML = '<span class="btn-text">Download</span>';
+        }
+    }
+
+    addToQueue(result) {
+        // Add media to download queue for easy access
+        this.downloadQueue.push({
+            url: document.getElementById('url-input').value.trim(),
+            title: result.title,
+            platform: result.platform,
+            formats: result.formats,
+            timestamp: Date.now()
+        });
+    }
+
+    clearQueue() {
+        this.downloadQueue = [];
+        const queueList = document.getElementById('queue-list');
+        queueList.innerHTML = '';
+        this.announceToScreenReader('Download queue cleared');
+    }
+
+    onDownloadComplete(downloadId, progress) {
+        this.setDownloadCompleted(downloadId);
+        this.updateStatus('Download completed successfully!', 'success');
+        this.announceToScreenReader('Download completed successfully');
+        this.hideProgress();
+    }
+
+    onDownloadError(downloadId, progress) {
+        this.setDownloadError(downloadId);
+        this.updateStatus('Download failed. Please try again.', 'error');
+        this.announceToScreenReader('Download failed');
+        this.hideProgress();
+    }
+
+    setDownloadCompleted(downloadId) {
+        const queueItem = document.querySelector(`[data-download-id="${downloadId}"]`);
+        if (queueItem) {
+            queueItem.classList.add('completed');
+            const statusText = queueItem.querySelector('.queue-status');
+            if (statusText) statusText.textContent = 'Complete';
+        }
+    }
+
+    setDownloadError(downloadId) {
+        const queueItem = document.querySelector(`[data-download-id="${downloadId}"]`);
+        if (queueItem) {
+            queueItem.classList.add('error');
+            const statusText = queueItem.querySelector('.queue-status');
+            if (statusText) statusText.textContent = 'Error';
+        }
+    }
+
+    // Settings Modal
+    openSettings() {
+        const modal = document.getElementById('settings-modal');
+        modal.style.display = 'flex';
+        this.announceToScreenReader('Settings opened');
+    }
+
+    closeSettings() {
+        const modal = document.getElementById('settings-modal');
+        modal.style.display = 'none';
+        this.announceToScreenReader('Settings closed');
+    }
+
+    saveSettingsAndClose() {
+        const autoUpdate = document.getElementById('auto-update').checked;
+        const privacyMode = document.getElementById('privacy-mode').checked;
+        const defaultQuality = document.getElementById('default-quality').value;
+        
+        this.settings = {
+            ...this.settings,
+            autoUpdate,
+            privacyMode,
+            defaultQuality
+        };
+        
+        this.saveSettings();
+        this.closeSettings();
+    }
+
+    // Formatting Utilities
+    getFormatTitle(format) {
+        const type = format.type === 'video' ? 'Video' : 'Audio';
+        const quality = format.height ? `${format.height}p` : format.format_note || 'Best';
+        return `${type} - ${quality}`;
+    }
+
+    sortFormats(formats) {
+        // Sort by type (video first), then by quality
+        return formats.sort((a, b) => {
+            if (a.type !== b.type) {
+                return a.type === 'video' ? -1 : 1;
+            }
+            if (a.height && b.height) {
+                return b.height - a.height;
+            }
+            return 0;
+        });
+    }
+
+    formatFileSize(bytes) {
+        if (!bytes) return 'Unknown';
+        const sizes = ['Bytes', 'KB', 'MB', 'GB'];
+        const i = Math.floor(Math.log(bytes) / Math.log(1024));
+        return Math.round(bytes / Math.pow(1024, i) * 100) / 100 + ' ' + sizes[i];
+    }
+
+    formatSpeed(bytesPerSec) {
+        if (!bytesPerSec) return '';
+        return this.formatFileSize(bytesPerSec) + '/s';
+    }
+
+    formatTime(seconds) {
+        if (!seconds) return '';
+        const hours = Math.floor(seconds / 3600);
+        const minutes = Math.floor((seconds % 3600) / 60);
+        const secs = Math.floor(seconds % 60);
+        
+        if (hours > 0) {
+            return `${hours}:${minutes.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
+        }
+        return `${minutes}:${secs.toString().padStart(2, '0')}`;
+    }
+
+    formatNumber(num) {
+        if (num >= 1000000) {
+            return (num / 1000000).toFixed(1) + 'M';
+        } else if (num >= 1000) {
+            return (num / 1000).toFixed(1) + 'K';
+        }
+        return num.toString();
+    }
+
+    updateApiInfo(data) {
+        // Update any UI elements showing API info
+        console.log('API Info:', data);
+    }
+
+    // Accessibility
+    announceToScreenReader(message) {
+        const announcement = document.createElement('div');
+        announcement.setAttribute('aria-live', 'polite');
+        announcement.setAttribute('aria-atomic', 'true');
+        announcement.className = 'sr-only';
+        announcement.textContent = message;
+        
+        document.body.appendChild(announcement);
+        
+        setTimeout(() => {
+            document.body.removeChild(announcement);
+        }, 1000);
+    }
+
+    setupKeyboardNavigation() {
+        document.addEventListener('keydown', (e) => {
+            // Global keyboard shortcuts
+            if (e.ctrlKey || e.metaKey) {
+                switch (e.key) {
+                    case 'u':
+                        e.preventDefault();
+                        document.getElementById('url-input').focus();
+                        break;
+                    case 's':
+                        e.preventDefault();
+                        this.openSettings();
+                        break;
+                }
+            }
+            
+            if (e.key === 'Escape') {
+                this.closeSettings();
+            }
+        });
+    }
+
+    // Service Worker
+    setupServiceWorker() {
+        if ('serviceWorker' in navigator) {
+            navigator.serviceWorker.register('/sw.js')
+                .then(registration => {
+                    console.log('Service Worker registered:', registration);
+                })
+                .catch(error => {
+                    console.log('Service Worker registration failed:', error);
+                });
+        }
+    }
+
+    loadDownloadHistory() {
+        // Load download history from localStorage
+        try {
+            const history = localStorage.getItem('download-history');
+            if (history) {
+                const parsed = JSON.parse(history);
+                console.log('Loaded download history:', parsed.length, 'items');
+            }
+        } catch (error) {
+            console.error('Failed to load download history:', error);
+        }
+    }
+
+    announceAppReady() {
+        setTimeout(() => {
+            this.announceToScreenReader('Universal Media Downloader ready. Enter a URL to begin downloading.');
+            document.getElementById('url-input').focus();
+        }, 1000);
+    }
+}
+
+// Initialize the application
+document.addEventListener('DOMContentLoaded', () => {
+    window.downloader = new UniversalMediaDownloader();
+});
+
+// Global error handling
+window.addEventListener('error', (event) => {
+    console.error('Global error:', event.error);
+    if (window.downloader) {
+        window.downloader.showError('An unexpected error occurred. Please refresh the page and try again.');
+    }
+});
+
+window.addEventListener('unhandledrejection', (event) => {
+    console.error('Unhandled promise rejection:', event.reason);
+    if (window.downloader) {
+        window.downloader.showError('A background process failed. Please check your connection and try again.');
+    }
+});

style.css

@@ -0,0 +1,1105 @@
+/* Universal Media Downloader - Enhanced Styles */
+/* Based on Dark Mode First Design with High Contrast */
+
+/* CSS Custom Properties */
+:root {
+    /* Colors - Dark Mode First */
+    --primary-100: #A5F3FC;
+    --primary-500: #06B6D4;
+    --primary-700: #0E7490;
+    --bg-page: #000000;
+    --bg-surface: #141414;
+    --border-default: #262626;
+    --text-primary: #E4E4E7;
+    --text-secondary: #A3A3A3;
+    --text-heading: #FAFAFA;
+    --success: #22C55E;
+    --warning: #FBBF24;
+    --error: #F43F5E;
+    
+    /* Typography */
+    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+    --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
+    
+    /* Spacing (4px Grid System) */
+    --space-xs: 8px;
+    --space-sm: 12px;
+    --space-md: 16px;
+    --space-lg: 24px;
+    --space-xl: 32px;
+    --space-xxl: 48px;
+    --space-xxxl: 64px;
+    
+    /* Border Radius */
+    --radius-sm: 8px;
+    --radius-md: 12px;
+    
+    /* Transitions */
+    --transition-fast: 150ms ease-out;
+    --transition-normal: 200ms ease-out;
+    --transition-slow: 300ms cubic-bezier(0.25, 1, 0.5, 1);
+    
+    /* Shadows */
+    --shadow-focus: 0 0 0 3px rgba(6, 182, 212, 0.4);
+    --shadow-hover: 0 0 12px 0 rgba(6, 182, 212, 0.2);
+}
+
+/* Reset and Base Styles */
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+html {
+    font-size: 16px;
+    scroll-behavior: smooth;
+}
+
+body {
+    font-family: var(--font-family);
+    font-size: 16px;
+    line-height: 1.5;
+    color: var(--text-primary);
+    background-color: var(--bg-page);
+    min-height: 100vh;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    overflow-x: hidden;
+}
+
+/* Screen Reader Only */
+.sr-only {
+    position: absolute;
+    width: 1px;
+    height: 1px;
+    padding: 0;
+    margin: -1px;
+    overflow: hidden;
+    clip: rect(0, 0, 0, 0);
+    white-space: nowrap;
+    border: 0;
+}
+
+/* App Container */
+.app-container {
+    min-height: 100vh;
+    display: flex;
+    flex-direction: column;
+    max-width: 1280px;
+    margin: 0 auto;
+    padding: var(--space-xl);
+}
+
+/* Header */
+.app-header {
+    background: var(--bg-surface);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    padding: var(--space-lg);
+    margin-bottom: var(--space-xl);
+}
+
+.header-content {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+.app-title {
+    font-size: 48px;
+    font-weight: 700;
+    line-height: 1.2;
+    color: var(--text-heading);
+    margin: 0;
+}
+
+.header-controls {
+    display: flex;
+    gap: var(--space-sm);
+}
+
+.icon-btn {
+    width: 48px;
+    height: 48px;
+    background: transparent;
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-sm);
+    color: var(--text-secondary);
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: all var(--transition-normal);
+}
+
+.icon-btn:hover {
+    border-color: var(--primary-500);
+    color: var(--primary-500);
+    box-shadow: var(--shadow-hover);
+}
+
+.icon-btn:focus {
+    outline: none;
+    box-shadow: var(--shadow-focus);
+}
+
+.icon {
+    width: 20px;
+    height: 20px;
+    fill: currentColor;
+}
+
+/* Main Content */
+.app-main {
+    flex: 1;
+    display: flex;
+    flex-direction: column;
+    gap: var(--space-xl);
+    padding-bottom: 80px; /* Space for bottom nav on mobile */
+}
+
+/* Section Styles */
+.section-title {
+    font-size: 24px;
+    font-weight: 600;
+    line-height: 1.3;
+    color: var(--text-heading);
+    margin-bottom: var(--space-md);
+}
+
+.section-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: var(--space-md);
+}
+
+/* Input Section */
+.input-section {
+    background: var(--bg-surface);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    padding: var(--space-lg);
+}
+
+.url-form {
+    margin: 0;
+}
+
+.input-group {
+    margin-bottom: var(--space-sm);
+}
+
+.input-label {
+    display: block;
+    font-size: 16px;
+    font-weight: 500;
+    color: var(--text-heading);
+    margin-bottom: var(--space-xs);
+}
+
+.url-input-container {
+    display: flex;
+    gap: var(--space-sm);
+    align-items: stretch;
+}
+
+.url-input {
+    flex: 1;
+    height: 56px;
+    background: var(--bg-page);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    color: var(--text-primary);
+    font-size: 16px;
+    padding: 0 var(--space-md);
+    transition: all var(--transition-normal);
+}
+
+.url-input::placeholder {
+    color: var(--text-secondary);
+    font-family: var(--font-mono);
+}
+
+.url-input:focus {
+    outline: none;
+    border-color: var(--primary-500);
+    box-shadow: var(--shadow-focus);
+}
+
+.analyze-btn {
+    min-width: 120px;
+    height: 56px;
+    background: var(--primary-500);
+    color: var(--text-heading);
+    border: none;
+    border-radius: var(--radius-md);
+    font-size: 16px;
+    font-weight: 500;
+    cursor: pointer;
+    transition: all var(--transition-slow);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: var(--space-xs);
+    position: relative;
+    overflow: hidden;
+}
+
+.analyze-btn:hover {
+    background: var(--primary-700);
+    transform: translateY(-2px);
+    box-shadow: var(--shadow-hover);
+}
+
+.analyze-btn:active {
+    transform: translateY(0);
+    background: var(--primary-700);
+}
+
+.analyze-btn:focus {
+    outline: none;
+    box-shadow: var(--shadow-focus);
+}
+
+.analyze-btn:disabled {
+    background: var(--border-default);
+    cursor: not-allowed;
+    transform: none;
+    box-shadow: none;
+}
+
+.btn-loading {
+    display: none;
+}
+
+.analyze-btn.loading .btn-text {
+    display: none;
+}
+
+.analyze-btn.loading .btn-loading {
+    display: flex;
+    align-items: center;
+}
+
+.spinner {
+    width: 20px;
+    height: 20px;
+    animation: spin 1s linear infinite;
+}
+
+.path {
+    stroke-dasharray: 90, 150;
+    stroke-dashoffset: 0;
+    stroke-linecap: round;
+    animation: dash 1.5s ease-in-out infinite;
+}
+
+@keyframes spin {
+    100% {
+        transform: rotate(360deg);
+    }
+}
+
+@keyframes dash {
+    0% {
+        stroke-dasharray: 1, 150;
+        stroke-dashoffset: 0;
+    }
+    50% {
+        stroke-dasharray: 90, 150;
+        stroke-dashoffset: -35;
+    }
+    100% {
+        stroke-dashoffset: -124;
+    }
+}
+
+.help-text {
+    font-size: 14px;
+    color: var(--text-secondary);
+    line-height: 1.4;
+}
+
+/* Status Section */
+.status-section {
+    background: var(--bg-surface);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    padding: var(--space-lg);
+}
+
+.status-container {
+    min-height: 60px;
+}
+
+.status-item {
+    display: flex;
+    align-items: center;
+    gap: var(--space-sm);
+}
+
+.status-icon {
+    font-size: 18px;
+}
+
+.status-text {
+    color: var(--text-primary);
+    line-height: 1.5;
+}
+
+/* Progress Section */
+.progress-section {
+    margin-top: var(--space-md);
+}
+
+.progress-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: var(--space-sm);
+}
+
+.progress-title {
+    font-size: 16px;
+    font-weight: 500;
+    color: var(--text-primary);
+}
+
+.progress-speed {
+    font-size: 14px;
+    color: var(--text-secondary);
+    font-family: var(--font-mono);
+}
+
+.progress-bar-container {
+    position: relative;
+    display: flex;
+    align-items: center;
+    gap: var(--space-sm);
+}
+
+.progress-bar {
+    flex: 1;
+    height: 8px;
+    background: var(--border-default);
+    border-radius: 4px;
+    overflow: hidden;
+}
+
+.progress-bar::-webkit-progress-bar {
+    background: var(--border-default);
+    border-radius: 4px;
+}
+
+.progress-bar::-webkit-progress-value {
+    background: var(--primary-500);
+    border-radius: 4px;
+    transition: width var(--transition-normal);
+}
+
+.progress-bar::-moz-progress-bar {
+    background: var(--primary-500);
+    border-radius: 4px;
+}
+
+.progress-percentage {
+    font-size: 14px;
+    font-weight: 500;
+    color: var(--text-primary);
+    min-width: 40px;
+    text-align: right;
+}
+
+/* Media Info Section */
+.media-info-section {
+    background: var(--bg-surface);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    padding: var(--space-lg);
+}
+
+.media-info {
+    display: flex;
+    gap: var(--space-lg);
+    align-items: flex-start;
+}
+
+.media-thumbnail {
+    flex-shrink: 0;
+    width: 120px;
+    height: 80px;
+    background: var(--bg-page);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-sm);
+    overflow: hidden;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.media-thumbnail img {
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+}
+
+.placeholder-icon {
+    width: 32px;
+    height: 32px;
+    fill: var(--text-secondary);
+}
+
+.media-details {
+    flex: 1;
+    min-width: 0;
+}
+
+.media-title {
+    font-size: 18px;
+    font-weight: 600;
+    line-height: 1.4;
+    color: var(--text-heading);
+    margin-bottom: var(--space-xs);
+    word-wrap: break-word;
+}
+
+.media-meta {
+    display: flex;
+    flex-wrap: wrap;
+    gap: var(--space-sm);
+    margin-bottom: var(--space-xs);
+    align-items: center;
+}
+
+.media-uploader {
+    font-size: 14px;
+    color: var(--text-secondary);
+}
+
+.platform-badge {
+    background: var(--primary-500);
+    color: var(--text-heading);
+    padding: 2px 8px;
+    border-radius: 12px;
+    font-size: 12px;
+    font-weight: 500;
+    text-transform: uppercase;
+}
+
+.duration {
+    font-size: 14px;
+    color: var(--text-secondary);
+    font-family: var(--font-mono);
+}
+
+.media-stats {
+    display: flex;
+    gap: var(--space-md);
+}
+
+.stat-item {
+    font-size: 14px;
+    color: var(--text-secondary);
+}
+
+/* Formats Section */
+.formats-section {
+    background: var(--bg-surface);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    padding: var(--space-lg);
+}
+
+.format-filters {
+    display: flex;
+    gap: var(--space-xs);
+}
+
+.filter-btn {
+    padding: var(--space-xs) var(--space-sm);
+    background: transparent;
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-sm);
+    color: var(--text-secondary);
+    font-size: 14px;
+    cursor: pointer;
+    transition: all var(--transition-normal);
+}
+
+.filter-btn:hover {
+    border-color: var(--primary-500);
+    color: var(--primary-500);
+}
+
+.filter-btn.active {
+    background: var(--primary-500);
+    color: var(--text-heading);
+    border-color: var(--primary-500);
+}
+
+.format-list {
+    display: flex;
+    flex-direction: column;
+    gap: var(--space-sm);
+    margin-top: var(--space-md);
+}
+
+.format-item {
+    background: var(--bg-page);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    padding: var(--space-md);
+    cursor: pointer;
+    transition: all var(--transition-normal);
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    min-height: 72px;
+}
+
+.format-item:hover {
+    background: rgba(255, 255, 255, 0.05);
+    border-color: var(--primary-500);
+    transform: translateY(-1px);
+}
+
+.format-item:focus {
+    outline: none;
+    border-color: var(--primary-500);
+    box-shadow: var(--shadow-focus);
+}
+
+.format-info {
+    flex: 1;
+    min-width: 0;
+}
+
+.format-title {
+    font-size: 16px;
+    font-weight: 500;
+    color: var(--text-heading);
+    line-height: 1.3;
+    margin-bottom: 2px;
+    word-wrap: break-word;
+}
+
+.format-details {
+    font-size: 14px;
+    color: var(--text-secondary);
+    line-height: 1.4;
+    font-family: var(--font-mono);
+}
+
+.format-actions {
+    display: flex;
+    gap: var(--space-xs);
+    align-items: center;
+}
+
+.format-item.downloading {
+    background: var(--primary-500);
+    color: var(--text-heading);
+    border-color: var(--primary-500);
+}
+
+.format-item.completed {
+    background: var(--success);
+    color: var(--bg-page);
+    border-color: var(--success);
+}
+
+.format-item.error {
+    background: var(--error);
+    color: var(--text-heading);
+    border-color: var(--error);
+}
+
+/* Queue Section */
+.queue-section {
+    background: var(--bg-surface);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    padding: var(--space-lg);
+}
+
+.queue-list {
+    display: flex;
+    flex-direction: column;
+    gap: var(--space-sm);
+}
+
+.queue-item {
+    background: var(--bg-page);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    padding: var(--space-md);
+    display: flex;
+    align-items: center;
+    gap: var(--space-md);
+    min-height: 80px;
+}
+
+.queue-thumbnail {
+    width: 64px;
+    height: 40px;
+    background: var(--border-default);
+    border-radius: var(--radius-sm);
+    flex-shrink: 0;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.queue-thumbnail img {
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+    border-radius: var(--radius-sm);
+}
+
+.queue-info {
+    flex: 1;
+    min-width: 0;
+}
+
+.queue-title {
+    font-size: 14px;
+    font-weight: 500;
+    color: var(--text-heading);
+    line-height: 1.3;
+    margin-bottom: 2px;
+    word-wrap: break-word;
+}
+
+.queue-url {
+    font-size: 12px;
+    color: var(--text-secondary);
+    font-family: var(--font-mono);
+    word-wrap: break-word;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+.queue-progress {
+    width: 120px;
+    text-align: center;
+}
+
+.queue-progress .progress-bar {
+    height: 4px;
+    margin-bottom: 4px;
+}
+
+.queue-status {
+    font-size: 12px;
+    color: var(--text-secondary);
+}
+
+/* Error and Success Sections */
+.error-section,
+.success-section {
+    background: rgba(244, 63, 94, 0.1);
+    border: 1px solid var(--error);
+    border-radius: var(--radius-md);
+    padding: var(--space-lg);
+}
+
+.success-section {
+    background: rgba(34, 197, 94, 0.1);
+    border-color: var(--success);
+}
+
+.error-container,
+.success-container {
+    min-height: 60px;
+}
+
+.error-item,
+.success-item {
+    display: flex;
+    align-items: center;
+    gap: var(--space-sm);
+    margin-bottom: var(--space-sm);
+}
+
+.error-item:last-child,
+.success-item:last-child {
+    margin-bottom: 0;
+}
+
+.error-icon {
+    color: var(--error);
+    font-size: 18px;
+}
+
+.success-icon {
+    color: var(--success);
+    font-size: 18px;
+}
+
+.error-text,
+.success-text {
+    font-size: 16px;
+    line-height: 1.5;
+}
+
+/* Secondary Button */
+.secondary-btn {
+    padding: var(--space-xs) var(--space-md);
+    background: transparent;
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-sm);
+    color: var(--text-primary);
+    font-size: 14px;
+    cursor: pointer;
+    transition: all var(--transition-normal);
+}
+
+.secondary-btn:hover {
+    border-color: var(--text-primary);
+    color: var(--text-heading);
+}
+
+/* Bottom Navigation */
+.bottom-nav {
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    background: var(--bg-surface);
+    border-top: 1px solid var(--border-default);
+    display: none;
+    padding: var(--space-sm) var(--space-md);
+    gap: var(--space-sm);
+    z-index: 1000;
+}
+
+.nav-item {
+    flex: 1;
+    background: transparent;
+    border: none;
+    color: var(--text-secondary);
+    cursor: pointer;
+    padding: var(--space-sm);
+    border-radius: var(--radius-sm);
+    transition: all var(--transition-normal);
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 4px;
+}
+
+.nav-item.active {
+    background: var(--primary-500);
+    color: var(--text-heading);
+}
+
+.nav-icon {
+    width: 20px;
+    height: 20px;
+    fill: currentColor;
+}
+
+.nav-label {
+    font-size: 12px;
+    font-weight: 500;
+}
+
+/* Settings Modal */
+.modal {
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background: rgba(0, 0, 0, 0.8);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    z-index: 2000;
+    padding: var(--space-md);
+}
+
+.modal-content {
+    background: var(--bg-surface);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-md);
+    max-width: 500px;
+    width: 100%;
+    max-height: 90vh;
+    overflow-y: auto;
+}
+
+.modal-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: var(--space-lg);
+    border-bottom: 1px solid var(--border-default);
+}
+
+.modal-header h3 {
+    font-size: 20px;
+    font-weight: 600;
+    color: var(--text-heading);
+}
+
+.modal-close {
+    background: none;
+    border: none;
+    color: var(--text-secondary);
+    font-size: 24px;
+    cursor: pointer;
+    padding: 0;
+    width: 32px;
+    height: 32px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 50%;
+    transition: all var(--transition-normal);
+}
+
+.modal-close:hover {
+    background: var(--border-default);
+    color: var(--text-primary);
+}
+
+.modal-body {
+    padding: var(--space-lg);
+}
+
+.setting-group {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: var(--space-lg);
+}
+
+.setting-label {
+    font-size: 16px;
+    color: var(--text-primary);
+}
+
+.toggle {
+    position: relative;
+    display: inline-block;
+    width: 48px;
+    height: 24px;
+}
+
+.toggle input {
+    opacity: 0;
+    width: 0;
+    height: 0;
+}
+
+.toggle-slider {
+    position: absolute;
+    cursor: pointer;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: var(--border-default);
+    border-radius: 24px;
+    transition: var(--transition-normal);
+}
+
+.toggle-slider:before {
+    position: absolute;
+    content: "";
+    height: 18px;
+    width: 18px;
+    left: 3px;
+    bottom: 3px;
+    background: var(--text-primary);
+    border-radius: 50%;
+    transition: var(--transition-normal);
+}
+
+.toggle input:checked + .toggle-slider {
+    background: var(--primary-500);
+}
+
+.toggle input:checked + .toggle-slider:before {
+    transform: translateX(24px);
+    background: var(--text-heading);
+}
+
+.setting-select {
+    background: var(--bg-page);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-sm);
+    color: var(--text-primary);
+    padding: var(--space-xs) var(--space-sm);
+    font-size: 14px;
+    cursor: pointer;
+}
+
+.setting-select:focus {
+    outline: none;
+    border-color: var(--primary-500);
+    box-shadow: var(--shadow-focus);
+}
+
+.modal-footer {
+    padding: var(--space-lg);
+    border-top: 1px solid var(--border-default);
+    display: flex;
+    justify-content: flex-end;
+}
+
+.primary-btn {
+    padding: var(--space-sm) var(--space-lg);
+    background: var(--primary-500);
+    color: var(--text-heading);
+    border: none;
+    border-radius: var(--radius-sm);
+    font-size: 16px;
+    font-weight: 500;
+    cursor: pointer;
+    transition: all var(--transition-normal);
+}
+
+.primary-btn:hover {
+    background: var(--primary-700);
+    transform: translateY(-1px);
+    box-shadow: var(--shadow-hover);
+}
+
+.primary-btn:focus {
+    outline: none;
+    box-shadow: var(--shadow-focus);
+}
+
+/* Responsive Design */
+@media (max-width: 767px) {
+    .app-container {
+        padding: var(--space-md);
+    }
+    
+    .app-title {
+        font-size: 32px;
+    }
+    
+    .header-content {
+        flex-direction: column;
+        gap: var(--space-md);
+        text-align: center;
+    }
+    
+    .url-input-container {
+        flex-direction: column;
+    }
+    
+    .analyze-btn {
+        width: 100%;
+    }
+    
+    .section-header {
+        flex-direction: column;
+        align-items: flex-start;
+        gap: var(--space-sm);
+    }
+    
+    .media-info {
+        flex-direction: column;
+        text-align: center;
+    }
+    
+    .media-thumbnail {
+        align-self: center;
+    }
+    
+    .format-item {
+        flex-direction: column;
+        align-items: flex-start;
+        gap: var(--space-sm);
+    }
+    
+    .format-actions {
+        align-self: flex-end;
+    }
+    
+    .queue-item {
+        flex-direction: column;
+        align-items: flex-start;
+        gap: var(--space-sm);
+    }
+    
+    .queue-progress {
+        width: 100%;
+    }
+    
+    .bottom-nav {
+        display: flex;
+    }
+    
+    .app-main {
+        padding-bottom: 100px; /* More space for bottom nav */
+    }
+}
+
+@media (min-width: 768px) {
+    .bottom-nav {
+        display: none;
+    }
+    
+    .app-main {
+        padding-bottom: 0;
+    }
+}
+
+/* High Contrast Mode */
+@media (prefers-contrast: high) {
+    :root {
+        --border-default: #666666;
+        --text-secondary: #CCCCCC;
+    }
+    
+    .url-input,
+    .analyze-btn,
+    .format-item,
+    .queue-item {
+        border-width: 2px;
+    }
+}
+
+/* Reduced Motion */
+@media (prefers-reduced-motion: reduce) {
+    * {
+        animation-duration: 0.01ms !important;
+        animation-iteration-count: 1 !important;
+        transition-duration: 0.01ms !important;
+    }
+    
+    .spinner {
+        animation: none;
+    }
+    
+    .path {
+        animation: none;
+    }
+}
+
+/* Print Styles */
+@media print {
+    .app-header,
+    .bottom-nav,
+    .icon-btn,
+    .analyze-btn {
+        display: none;
+    }
+    
+    .app-container {
+        padding: 0;
+    }
+    
+    body {
+        background: white;
+        color: black;
+    }
+}