Initial commit

This commit is contained in:
Zhongwei Li
2025-11-30 08:36:12 +08:00
commit 7df054b028
15 changed files with 4043 additions and 0 deletions

View File

@@ -0,0 +1,135 @@
---
name: modern-web-design
description: Create modern, responsive websites with professional design systems. Generates complete HTML/CSS/JS websites with Tailwind CSS, modern animations, and mobile-first responsive design. Perfect for landing pages, portfolios, business sites, and SaaS applications.
---
# Modern Web Design Creator
Build beautiful, responsive websites using modern design principles, Tailwind CSS, and contemporary UI patterns. Creates production-ready code with animations, responsive layouts, and accessibility features.
## When to Use This Skill
Use this skill for:
- Landing pages and marketing websites
- Portfolio and personal brand sites
- Business and company websites
- SaaS application interfaces
- E-commerce product pages
- Blog and content sites
- Dashboard and admin interfaces
## Design System Foundation
### Core Principles
- **Mobile-first responsive design** with breakpoint optimization
- **Design tokens** for consistent spacing, colors, and typography
- **Component-based architecture** for maintainable code
- **Accessibility-first** development with ARIA labels and semantic HTML
- **Performance optimization** with minimal CSS and efficient animations
### Style Categories
Reference `references/design-systems.md` for complete style specifications:
#### Minimalist Professional
- Clean typography with generous whitespace
- Neutral color palette with strategic accent colors
- Subtle shadows and minimal animations
- Focus on content hierarchy and readability
#### Modern SaaS
- Bold gradients and vibrant colors
- Card-based layouts with elevation
- Micro-interactions and hover states
- Dashboard-style components
#### Creative Portfolio
- Experimental layouts and grid systems
- Bold typography and creative color schemes
- Advanced animations and scroll effects
- Image-focused design patterns
#### E-commerce Optimized
- Product-focused layouts
- Trust signals and social proof elements
- Conversion-optimized CTAs
- Shopping and checkout flows
## Implementation Workflow
1. **Analyze Requirements**: Determine site purpose, target audience, and functionality needs
2. **Select Design Category**: Choose appropriate style system from references
3. **Generate Structure**: Create semantic HTML with proper heading hierarchy
4. **Apply Styling**: Implement Tailwind CSS classes with design system tokens
5. **Add Interactions**: Include animations, hover states, and micro-interactions
6. **Optimize Responsive**: Ensure mobile-first responsive behavior
7. **Enhance Accessibility**: Add ARIA labels, alt text, and keyboard navigation
## Code Generation Standards
### HTML Structure
- Semantic HTML5 elements (`<header>`, `<main>`, `<section>`, `<article>`)
- Proper heading hierarchy (h1 → h6)
- Accessibility attributes (ARIA, alt text, roles)
- Meta tags for SEO and responsive design
### CSS Framework
- Tailwind CSS utility classes for rapid development
- Custom CSS for complex animations and unique effects
- CSS variables for design token consistency
- Mobile-first media queries
### JavaScript Features
- Vanilla JavaScript for lightweight interactions
- Intersection Observer for scroll animations
- Form validation and submission handling
- Mobile menu and navigation toggles
## Component Library
Load `assets/component-templates.html` for reusable components:
### Navigation Components
- Responsive header with mobile menu
- Sticky navigation with scroll effects
- Breadcrumb navigation
- Footer with social links
### Content Sections
- Hero sections with various layouts
- Feature grids and comparison tables
- Testimonial carousels
- FAQ accordions
- Contact forms
### Interactive Elements
- Animated buttons and CTAs
- Image galleries and lightboxes
- Progress bars and counters
- Modal dialogs and tooltips
## Advanced Features
### Animation System
- CSS transitions for smooth interactions
- Keyframe animations for complex movements
- Intersection Observer for scroll-triggered effects
- Performance-optimized animations
### Performance Optimization
- Minimal CSS footprint with utility-first approach
- Lazy loading for images and heavy content
- Critical CSS inlining for above-fold content
- Progressive enhancement strategies
### SEO Foundation
- Semantic HTML structure
- Meta tags and Open Graph
- JSON-LD structured data
- Performance optimization for Core Web Vitals
## Supporting Resources
- `references/design-systems.md`: Complete style guides and color palettes
- `assets/component-templates.html`: Reusable HTML component library
- `scripts/build-tools.js`: Optimization and build utilities

View File

@@ -0,0 +1,332 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Modern Web Design Components</title>
<script src="https://cdn.tailwindcss.com"></script>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">
</head>
<body class="font-['Inter'] bg-gray-50">
<!-- Navigation Components -->
<!-- 1. Professional Header -->
<header class="bg-white shadow-sm sticky top-0 z-50">
<nav class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="flex justify-between items-center h-16">
<div class="flex items-center">
<img class="h-8 w-8" src="logo.svg" alt="Logo">
<span class="ml-2 text-xl font-semibold text-gray-900">Brand</span>
</div>
<div class="hidden md:block">
<div class="ml-10 flex items-baseline space-x-8">
<a href="#" class="text-gray-600 hover:text-gray-900 px-3 py-2 text-sm font-medium transition-colors">Home</a>
<a href="#" class="text-gray-600 hover:text-gray-900 px-3 py-2 text-sm font-medium transition-colors">About</a>
<a href="#" class="text-gray-600 hover:text-gray-900 px-3 py-2 text-sm font-medium transition-colors">Services</a>
<a href="#" class="text-gray-600 hover:text-gray-900 px-3 py-2 text-sm font-medium transition-colors">Contact</a>
</div>
</div>
<div class="hidden md:block">
<button class="bg-blue-600 text-white px-4 py-2 rounded-md text-sm font-medium hover:bg-blue-700 transition-colors">
Get Started
</button>
</div>
<div class="md:hidden">
<button class="text-gray-600 hover:text-gray-900" id="mobile-menu-button">
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16" />
</svg>
</button>
</div>
</div>
</nav>
</header>
<!-- 2. SaaS Gradient Header -->
<header class="bg-gradient-to-r from-purple-600 to-blue-600">
<nav class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="flex justify-between items-center h-16">
<div class="flex items-center">
<span class="text-xl font-bold text-white">SaaS App</span>
</div>
<div class="hidden md:flex space-x-8">
<a href="#" class="text-purple-100 hover:text-white transition-colors">Features</a>
<a href="#" class="text-purple-100 hover:text-white transition-colors">Pricing</a>
<a href="#" class="text-purple-100 hover:text-white transition-colors">Resources</a>
</div>
<div class="flex items-center space-x-4">
<a href="#" class="text-purple-100 hover:text-white">Sign In</a>
<button class="bg-white text-purple-600 px-4 py-2 rounded-md font-medium hover:bg-gray-100 transition-colors">
Start Free Trial
</button>
</div>
</div>
</nav>
</header>
<!-- Hero Sections -->
<!-- 3. Minimalist Hero -->
<section class="bg-white py-20">
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="text-center">
<h1 class="text-4xl sm:text-5xl lg:text-6xl font-bold text-gray-900 leading-tight">
Build something
<span class="text-blue-600">amazing</span>
</h1>
<p class="mt-6 max-w-3xl mx-auto text-xl text-gray-600">
Create beautiful, responsive websites with our modern design system and component library.
</p>
<div class="mt-10 flex flex-col sm:flex-row gap-4 justify-center">
<button class="bg-blue-600 text-white px-8 py-3 rounded-md font-medium hover:bg-blue-700 transition-colors transform hover:-translate-y-1">
Get Started
</button>
<button class="border border-gray-300 text-gray-700 px-8 py-3 rounded-md font-medium hover:bg-gray-50 transition-colors">
Learn More
</button>
</div>
</div>
</div>
</section>
<!-- 4. SaaS Hero with Animation -->
<section class="bg-gradient-to-br from-indigo-900 via-purple-900 to-pink-900 py-20">
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="grid lg:grid-cols-2 gap-12 items-center">
<div>
<h1 class="text-5xl lg:text-6xl font-bold text-white leading-tight">
The future of
<span class="text-transparent bg-clip-text bg-gradient-to-r from-pink-400 to-purple-400">
productivity
</span>
</h1>
<p class="mt-6 text-xl text-gray-300">
Streamline your workflow with AI-powered tools that adapt to your team's needs.
</p>
<div class="mt-8 flex flex-col sm:flex-row gap-4">
<button class="bg-white text-gray-900 px-8 py-3 rounded-md font-semibold hover:bg-gray-100 transition-all transform hover:scale-105">
Start Free Trial
</button>
<button class="border border-purple-400 text-purple-400 px-8 py-3 rounded-md font-semibold hover:bg-purple-400 hover:text-white transition-colors">
Watch Demo
</button>
</div>
</div>
<div class="relative">
<div class="bg-white/10 backdrop-blur-lg rounded-xl p-8 border border-white/20">
<div class="space-y-4">
<div class="flex items-center space-x-3">
<div class="w-3 h-3 bg-green-400 rounded-full"></div>
<div class="h-2 bg-gray-300 rounded w-32"></div>
</div>
<div class="flex items-center space-x-3">
<div class="w-3 h-3 bg-yellow-400 rounded-full"></div>
<div class="h-2 bg-gray-300 rounded w-24"></div>
</div>
<div class="flex items-center space-x-3">
<div class="w-3 h-3 bg-blue-400 rounded-full"></div>
<div class="h-2 bg-gray-300 rounded w-40"></div>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
<!-- Feature Sections -->
<!-- 5. Feature Grid -->
<section class="py-20 bg-white">
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="text-center mb-16">
<h2 class="text-3xl sm:text-4xl font-bold text-gray-900">
Everything you need to succeed
</h2>
<p class="mt-4 text-xl text-gray-600">
Powerful features to help you build better websites faster
</p>
</div>
<div class="grid md:grid-cols-2 lg:grid-cols-3 gap-8">
<div class="text-center p-6 rounded-lg hover:shadow-lg transition-shadow">
<div class="w-12 h-12 bg-blue-100 rounded-lg flex items-center justify-center mx-auto mb-4">
<svg class="w-6 h-6 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 10V3L4 14h7v7l9-11h-7z" />
</svg>
</div>
<h3 class="text-xl font-semibold text-gray-900 mb-2">Lightning Fast</h3>
<p class="text-gray-600">Optimized for speed and performance on all devices</p>
</div>
<div class="text-center p-6 rounded-lg hover:shadow-lg transition-shadow">
<div class="w-12 h-12 bg-green-100 rounded-lg flex items-center justify-center mx-auto mb-4">
<svg class="w-6 h-6 text-green-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
</svg>
</div>
<h3 class="text-xl font-semibold text-gray-900 mb-2">Reliable</h3>
<p class="text-gray-600">99.9% uptime guarantee with robust infrastructure</p>
</div>
<div class="text-center p-6 rounded-lg hover:shadow-lg transition-shadow">
<div class="w-12 h-12 bg-purple-100 rounded-lg flex items-center justify-center mx-auto mb-4">
<svg class="w-6 h-6 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z" />
</svg>
</div>
<h3 class="text-xl font-semibold text-gray-900 mb-2">Secure</h3>
<p class="text-gray-600">Enterprise-grade security to protect your data</p>
</div>
</div>
</div>
</section>
<!-- Interactive Components -->
<!-- 6. Testimonial Carousel -->
<section class="py-20 bg-gray-50">
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="text-center mb-16">
<h2 class="text-3xl font-bold text-gray-900">What our customers say</h2>
</div>
<div class="max-w-4xl mx-auto">
<div class="bg-white rounded-xl shadow-lg p-8">
<div class="text-center">
<p class="text-xl text-gray-600 italic mb-8">
"This platform has completely transformed how we build and deploy websites. The design system is incredible and the performance is outstanding."
</p>
<div class="flex items-center justify-center">
<img class="w-12 h-12 rounded-full mr-4" src="https://images.unsplash.com/photo-1472099645785-5658abf4ff4e?w=100&h=100&fit=crop&crop=face" alt="Customer">
<div class="text-left">
<p class="font-semibold text-gray-900">John Smith</p>
<p class="text-gray-600">CEO, TechCorp</p>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
<!-- 7. Contact Form -->
<section class="py-20 bg-white">
<div class="max-w-3xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="text-center mb-12">
<h2 class="text-3xl font-bold text-gray-900">Get in touch</h2>
<p class="mt-4 text-xl text-gray-600">Ready to start your project? Let's talk.</p>
</div>
<form class="space-y-6">
<div class="grid md:grid-cols-2 gap-6">
<div>
<label for="first_name" class="block text-sm font-medium text-gray-700 mb-2">First Name</label>
<input type="text" id="first_name" class="w-full px-4 py-3 border border-gray-300 rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent">
</div>
<div>
<label for="last_name" class="block text-sm font-medium text-gray-700 mb-2">Last Name</label>
<input type="text" id="last_name" class="w-full px-4 py-3 border border-gray-300 rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent">
</div>
</div>
<div>
<label for="email" class="block text-sm font-medium text-gray-700 mb-2">Email</label>
<input type="email" id="email" class="w-full px-4 py-3 border border-gray-300 rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent">
</div>
<div>
<label for="message" class="block text-sm font-medium text-gray-700 mb-2">Message</label>
<textarea id="message" rows="4" class="w-full px-4 py-3 border border-gray-300 rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent"></textarea>
</div>
<div class="text-center">
<button type="submit" class="bg-blue-600 text-white px-8 py-3 rounded-md font-medium hover:bg-blue-700 transition-colors transform hover:-translate-y-1">
Send Message
</button>
</div>
</form>
</div>
</section>
<!-- Footer -->
<footer class="bg-gray-900 text-white py-12">
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
<div class="grid md:grid-cols-4 gap-8">
<div>
<h3 class="text-lg font-semibold mb-4">Company</h3>
<ul class="space-y-2">
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">About</a></li>
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">Careers</a></li>
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">Contact</a></li>
</ul>
</div>
<div>
<h3 class="text-lg font-semibold mb-4">Product</h3>
<ul class="space-y-2">
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">Features</a></li>
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">Pricing</a></li>
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">Documentation</a></li>
</ul>
</div>
<div>
<h3 class="text-lg font-semibold mb-4">Resources</h3>
<ul class="space-y-2">
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">Blog</a></li>
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">Support</a></li>
<li><a href="#" class="text-gray-400 hover:text-white transition-colors">Community</a></li>
</ul>
</div>
<div>
<h3 class="text-lg font-semibold mb-4">Follow Us</h3>
<div class="flex space-x-4">
<a href="#" class="text-gray-400 hover:text-white transition-colors">
<svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24">
<path d="M24 4.557c-.883.392-1.832.656-2.828.775 1.017-.609 1.798-1.574 2.165-2.724-.951.564-2.005.974-3.127 1.195-.897-.957-2.178-1.555-3.594-1.555-3.179 0-5.515 2.966-4.797 6.045-4.091-.205-7.719-2.165-10.148-5.144-1.29 2.213-.669 5.108 1.523 6.574-.806-.026-1.566-.247-2.229-.616-.054 2.281 1.581 4.415 3.949 4.89-.693.188-1.452.232-2.224.084.626 1.956 2.444 3.379 4.6 3.419-2.07 1.623-4.678 2.348-7.29 2.04 2.179 1.397 4.768 2.212 7.548 2.212 9.142 0 14.307-7.721 13.995-14.646.962-.695 1.797-1.562 2.457-2.549z"/>
</svg>
</a>
<a href="#" class="text-gray-400 hover:text-white transition-colors">
<svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24">
<path d="M22.46 6c-.77.35-1.6.58-2.46.69.88-.53 1.56-1.37 1.88-2.38-.83.5-1.75.85-2.72 1.05C18.37 4.5 17.26 4 16 4c-2.35 0-4.27 1.92-4.27 4.29 0 .34.04.67.11.98C8.28 9.09 5.11 7.38 3 4.79c-.37.63-.58 1.37-.58 2.15 0 1.49.75 2.81 1.91 3.56-.71 0-1.37-.2-1.95-.5v.03c0 2.08 1.48 3.82 3.44 4.21a4.22 4.22 0 0 1-1.93.07 4.28 4.28 0 0 0 4 2.98 8.521 8.521 0 0 1-5.33 1.84c-.34 0-.68-.02-1.02-.06C3.44 20.29 5.7 21 8.12 21 16 21 20.33 14.46 20.33 8.79c0-.19 0-.37-.01-.56.84-.6 1.56-1.36 2.14-2.23z"/>
</svg>
</a>
</div>
</div>
</div>
<div class="border-t border-gray-800 mt-8 pt-8 text-center">
<p class="text-gray-400">&copy; 2024 Your Company. All rights reserved.</p>
</div>
</div>
</footer>
<script>
// Mobile menu toggle
document.getElementById('mobile-menu-button')?.addEventListener('click', function() {
// Mobile menu implementation
});
// Smooth scrolling for anchor links
document.querySelectorAll('a[href^="#"]').forEach(anchor => {
anchor.addEventListener('click', function (e) {
e.preventDefault();
document.querySelector(this.getAttribute('href')).scrollIntoView({
behavior: 'smooth'
});
});
});
// Intersection Observer for animations
const observerOptions = {
threshold: 0.1,
rootMargin: '0px 0px -50px 0px'
};
const observer = new IntersectionObserver((entries) => {
entries.forEach(entry => {
if (entry.isIntersecting) {
entry.target.classList.add('animate-fade-in-up');
}
});
}, observerOptions);
// Observe all sections for animation
document.querySelectorAll('section').forEach(section => {
observer.observe(section);
});
</script>
</body>
</html>

View File

@@ -0,0 +1,310 @@
# Modern Web Design Systems
## Design Categories
### 1. Minimalist Professional
#### Color Palette
```css
/* Primary Colors */
--primary-50: #f8fafc;
--primary-100: #f1f5f9;
--primary-500: #64748b;
--primary-900: #0f172a;
/* Accent Colors */
--accent-500: #3b82f6;
--accent-600: #2563eb;
/* Semantic Colors */
--success: #10b981;
--warning: #f59e0b;
--error: #ef4444;
```
#### Typography Scale
```css
/* Font Family */
--font-sans: 'Inter', system-ui, sans-serif;
--font-mono: 'JetBrains Mono', monospace;
/* Font Sizes */
--text-xs: 0.75rem; /* 12px */
--text-sm: 0.875rem; /* 14px */
--text-base: 1rem; /* 16px */
--text-lg: 1.125rem; /* 18px */
--text-xl: 1.25rem; /* 20px */
--text-2xl: 1.5rem; /* 24px */
--text-3xl: 1.875rem; /* 30px */
--text-4xl: 2.25rem; /* 36px */
```
#### Spacing System
```css
--space-1: 0.25rem; /* 4px */
--space-2: 0.5rem; /* 8px */
--space-4: 1rem; /* 16px */
--space-6: 1.5rem; /* 24px */
--space-8: 2rem; /* 32px */
--space-12: 3rem; /* 48px */
--space-16: 4rem; /* 64px */
--space-20: 5rem; /* 80px */
```
### 2. Modern SaaS
#### Color Palette
```css
/* Primary Gradient */
--primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
--primary-500: #667eea;
--primary-600: #5a67d8;
/* Background Colors */
--bg-primary: #ffffff;
--bg-secondary: #f7fafc;
--bg-tertiary: #edf2f7;
/* Interactive Colors */
--interactive-hover: #e2e8f0;
--interactive-active: #cbd5e0;
```
#### Component Elevation
```css
/* Shadow System */
--shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
--shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
--shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
--shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
```
#### Animation Timing
```css
--duration-fast: 150ms;
--duration-normal: 250ms;
--duration-slow: 350ms;
--ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
```
### 3. Creative Portfolio
#### Experimental Color Scheme
```css
/* Vibrant Palette */
--primary-pink: #ec4899;
--primary-purple: #8b5cf6;
--primary-blue: #06b6d4;
--primary-green: #10b981;
/* Dark Mode */
--dark-bg: #0f0f23;
--dark-surface: #1a1a3e;
--dark-text: #e2e8f0;
```
#### Creative Typography
```css
/* Display Fonts */
--font-display: 'Playfair Display', serif;
--font-creative: 'Space Grotesk', sans-serif;
/* Font Weights */
--weight-light: 300;
--weight-normal: 400;
--weight-medium: 500;
--weight-bold: 700;
--weight-black: 900;
```
### 4. E-commerce Optimized
#### Trust & Conversion Colors
```css
/* Primary Brand */
--brand-primary: #059669;
--brand-secondary: #0d9488;
/* Conversion Elements */
--cta-primary: #dc2626;
--cta-secondary: #ea580c;
--trust-green: #059669;
--urgency-orange: #ea580c;
```
#### Product Display
```css
/* Product Card */
--product-bg: #ffffff;
--product-border: #e5e7eb;
--product-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
/* Price Display */
--price-primary: #1f2937;
--price-sale: #dc2626;
--price-original: #9ca3af;
```
## Layout Systems
### Grid Patterns
#### 12-Column Grid
```css
.container {
max-width: 1280px;
margin: 0 auto;
padding: 0 1rem;
}
.grid-12 {
display: grid;
grid-template-columns: repeat(12, 1fr);
gap: 1.5rem;
}
```
#### Card Grid System
```css
.card-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 2rem;
}
```
### Responsive Breakpoints
```css
/* Mobile First */
@media (min-width: 640px) { /* sm */ }
@media (min-width: 768px) { /* md */ }
@media (min-width: 1024px) { /* lg */ }
@media (min-width: 1280px) { /* xl */ }
@media (min-width: 1536px) { /* 2xl */ }
```
## Component Patterns
### Button Variants
```css
/* Primary Button */
.btn-primary {
background: var(--primary-500);
color: white;
padding: 0.75rem 1.5rem;
border-radius: 0.5rem;
transition: all var(--duration-normal) var(--ease-in-out);
}
.btn-primary:hover {
background: var(--primary-600);
transform: translateY(-1px);
box-shadow: var(--shadow-lg);
}
```
### Card Components
```css
.card {
background: var(--bg-primary);
border-radius: 0.75rem;
box-shadow: var(--shadow-md);
overflow: hidden;
transition: all var(--duration-normal) var(--ease-in-out);
}
.card:hover {
transform: translateY(-4px);
box-shadow: var(--shadow-xl);
}
```
### Input Styling
```css
.input-field {
width: 100%;
padding: 0.75rem 1rem;
border: 2px solid var(--gray-200);
border-radius: 0.5rem;
font-size: var(--text-base);
transition: border-color var(--duration-fast);
}
.input-field:focus {
outline: none;
border-color: var(--primary-500);
box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
```
## Animation Library
### Micro-interactions
```css
/* Hover Lift */
.hover-lift {
transition: transform var(--duration-normal) var(--ease-in-out);
}
.hover-lift:hover {
transform: translateY(-2px);
}
/* Scale on Hover */
.hover-scale {
transition: transform var(--duration-normal) var(--ease-in-out);
}
.hover-scale:hover {
transform: scale(1.05);
}
```
### Loading States
```css
@keyframes pulse {
0%, 100% { opacity: 1; }
50% { opacity: 0.5; }
}
.loading {
animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
```
### Scroll Animations
```css
@keyframes fadeInUp {
from {
opacity: 0;
transform: translateY(30px);
}
to {
opacity: 1;
transform: translateY(0);
}
}
.animate-fade-in-up {
animation: fadeInUp 0.6s ease-out;
}
```
## Accessibility Standards
### Color Contrast
- AA Standard: 4.5:1 for normal text
- AA Standard: 3:1 for large text
- AAA Standard: 7:1 for normal text
### Focus States
```css
.focus-visible {
outline: 2px solid var(--primary-500);
outline-offset: 2px;
}
```
### Screen Reader Support
- Use semantic HTML elements
- Include ARIA labels where needed
- Maintain logical heading hierarchy
- Provide alt text for images