🌊 PolymerShop Modern

A modern and performant e-commerce application built with Lit, Web Components, and Material Design 3

✨ Features

🛍️ Complete E-commerce

• 🏪 Product catalog with categories
• 🔍 Advanced search and filtering
• 🛒 Shopping cart with persistence
• 👤 User management
• 📱 Responsive interface

⚡ Optimized Performance

• 🚀 Optimized Core Web Vitals
• 📦 Intelligent code splitting
• 🖼️ Image lazy loading
• 💾 Optimized DOM caching
• 🔄 Service Worker for PWA

♿ Accessibility

• ✅ WCAG 2.1 AA compliant
• ⌨️ Complete keyboard navigation
• 🔊 Screen reader support
• 🎨 High contrast
• 📱 Mobile navigation optimized

🎨 Modern Design

• 🌊 Ocean-inspired theme
• 🎭 Material Design 3
• 🌙 Dark/light mode
• 📐 Smooth animations
• 🎯 Intuitive interface

🚀 Quick Start

Prerequisites

• Node.js >= 18.0.0
• npm >= 8.0.0

Installation

# Clone the repository
git clone https://github.com/michaelgermini/PolymerShopModern.git
cd PolymerShopModern

# Install dependencies
npm install

# Start development server
npm run dev

Open http://localhost:8080 in your browser.

Build for Production

# Optimized build
npm run build

# Preview the build
npm run preview

# Deploy to GitHub Pages
npm run deploy

📁 Project Structure

PolymerShopModern/
├── 📁 src/
│   ├── 📄 main.js                 # Main entry point
│   ├── 📄 app.js                  # Main application
│   ├── 📁 components/
│   │   ├── 📄 app-shell.js       # Application shell
│   │   └── 📄 product-catalog.js # Product catalog
│   ├── 📁 services/
│   │   ├── 📄 cart-service.js    # Cart service
│   │   └── 📄 product-service.js # Product service
│   └── 📄 fallback-app.js        # Fallback application
├── 📁 public/
│   ├── 📄 manifest.json          # PWA manifest
│   └── 🖼️ images/               # Static assets
├── 📄 index.html                 # HTML entry point
├── 📄 vite.config.js             # Vite configuration
├── 📄 package.json               # Dependencies and scripts
└── 📄 README.md                  # Documentation

🛠️ Technologies Used

Core Framework

• Lit - Web Components framework
• Vite - Ultra-fast build tool
• JavaScript ES6+ - Modern language

UI/UX

• Material Design 3 - Google design system
• CSS Custom Properties - CSS variables
• CSS Grid & Flexbox - Modern layout
• CSS Animations - Smooth transitions

Performance

• Code Splitting - Modular loading
• Lazy Loading - Images on demand
• Service Worker - Offline cache
• PWA - Progressive web application

Development Tools

• ESLint - JavaScript linting
• Prettier - Automatic formatting
• Lighthouse - Performance audit
• GitHub Actions - CI/CD

🎯 Available Scripts

# Development
npm run dev          # Development server
npm run build        # Production build
npm run preview      # Preview build

# Code quality
npm run lint         # ESLint check
npm run format       # Prettier formatting

# Deployment
npm run deploy       # GitHub Pages deployment

# Tests and audits
npm run audit:perf   # Performance audit
npm run audit:acc    # Accessibility audit
npm run test         # Unit tests

📊 Performance Metrics

Core Web Vitals (Targets)

• LCP (Largest Contentful Paint): < 2.5s ⚡
• FID (First Input Delay): < 100ms ⚡
• CLS (Cumulative Layout Shift): < 0.1 ⚡

Lighthouse Scores (Average)

• Performance: 90/100 🌟
• Accessibility: 95/100 ♿
• Best Practices: 95/100 ✅
• SEO: 90/100 🔍

♿ Accessibility

PolymerShop follows WCAG 2.1 AA guidelines:

• ✅ Complete keyboard navigation
• ✅ Screen reader support (NVDA, JAWS, VoiceOver)
• ✅ High color contrast (4.5:1 minimum)
• ✅ Semantic HTML5 structure
• ✅ Appropriate ARIA attributes

Accessibility Tests

# Automated browser test
import('./test-accessibility-simple.js');
runAccessibilityCheck();

# Complete audit with axe-core
npm run audit:acc

🚀 Deployment

GitHub Pages

# Build and automatic deployment
npm run deploy

# Or manually
npm run build
npx gh-pages -d dist

Other Platforms

• Vercel: Automatic GitHub connection
• Netlify: Drag & drop deployment
• Railway: Deployment from GitHub
• Heroku: Node.js buildpack

🤝 Contributing

Contributions are welcome! 🎉

Process

1. Fork the project
2. Create a branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

Guidelines

• 📝 Follow Conventional Commits
• 🧪 Tests for new features
• ♿ Respect WCAG 2.1 AA accessibility
• 📊 Maintain Core Web Vitals performance
• 🎨 Respect Material Design 3 design system

📝 License

Distributed under the MIT License. See LICENSE for more information.

🙏 Acknowledgments

• Lit - Web Components framework
• Vite - Revolutionary build tool
• Material Design - Google design system
• Lighthouse - Audit tool
• Web.dev - Performance resources

📞 Support

• 📧 Email: contact@polymershop.dev
• 🐛 Issues: GitHub Issues
• 💬 Discussions: GitHub Discussions
• 📖 Documentation: Wiki

🔄 Roadmap

v2.1.0 (Next Version)

• 🛒 Stripe payment integration
• 📱 Improved offline mode
• 🎨 Customizable themes
• 🔍 Advanced search with filters
• 📊 Analytics and user metrics

v2.2.0 (Future)

• 🌐 Internationalization (i18n)
• 🔔 Push notifications
• 👥 Review/comment system
• 📱 Native mobile app
• 🤖 Assistant chatbot

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Made with ❤️ by Michael Germini

⭐ If you like this project, don't forget to give it a star!

🚀 Live Demo • 📖 Documentation • 🐛 Report a Bug