gh-kuse-ai-kuse-skills-design-skills/skills/modern-web-design/references/design-systems.md

Modern Web Design Systems

Design Categories

1. Minimalist Professional

Color Palette

/* 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

/* 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

--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

/* 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

/* 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

--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

/* 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

/* 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

/* Primary Brand */
--brand-primary: #059669;
--brand-secondary: #0d9488;

/* Conversion Elements */
--cta-primary: #dc2626;
--cta-secondary: #ea580c;
--trust-green: #059669;
--urgency-orange: #ea580c;

Product Display

/* 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

.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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

Responsive Breakpoints

/* 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

/* 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

.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

.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

/* 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

@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

@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

.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