/* Vibe AI Branding Guidelines - Style System */

:root {
  /* Color Palette */
  --primary: #6e44ff;         /* Vibrant purple - energy and innovation */
  --primary-light: #9e7dff;   /* Light purple for accents */
  --primary-dark: #4d2db7;    /* Dark purple for depth */
  --secondary: #00e5ff;       /* Bright cyan - technology and future */
  --secondary-light: #73ffff; /* Light cyan for highlights */
  --secondary-dark: #00b2cc;  /* Dark cyan for contrast */
  --neutral-100: #ffffff;     /* White */
  --neutral-200: #f5f7fa;     /* Light gray background */
  --neutral-300: #e4e7eb;     /* Light gray borders */
  --neutral-400: #cbd2d9;     /* Medium gray */
  --neutral-500: #9aa5b1;     /* Medium gray text */
  --neutral-600: #7b8794;     /* Dark gray text */
  --neutral-700: #4a5568;     /* Dark gray headings */
  --neutral-800: #323f4b;     /* Very dark gray */
  --neutral-900: #1f2933;     /* Almost black */
  --success: #36b37e;         /* Green for success states */
  --warning: #ffab00;         /* Amber for warnings */
  --error: #ff5630;           /* Red for errors */
  --info: #00b8d9;            /* Blue for information */

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-secondary: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Roboto Mono', Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  
  /* Spacing System (8px grid) */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 1rem;     /* 16px */
  --space-4: 1.5rem;   /* 24px */
  --space-5: 2rem;     /* 32px */
  --space-6: 3rem;     /* 48px */
  --space-7: 4rem;     /* 64px */
  --space-8: 6rem;     /* 96px */
  
  /* Border Radius */
  --radius-sm: 0.25rem;  /* 4px */
  --radius-md: 0.5rem;   /* 8px */
  --radius-lg: 1rem;     /* 16px */
  --radius-xl: 1.5rem;   /* 24px */
  --radius-full: 9999px; /* Fully rounded */
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index layers */
  --z-base: 1;
  --z-above: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-tooltip: 600;
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  color: var(--neutral-800);
  background-color: var(--neutral-200);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-3);
  color: var(--neutral-900);
}

h1 {
  font-size: 3.052rem;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}

h2 {
  font-size: 2.441rem;
}

h3 {
  font-size: 1.953rem;
}

h4 {
  font-size: 1.563rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--space-3);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

code {
  font-family: var(--font-mono);
  background-color: var(--neutral-300);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.section {
  padding: var(--space-6) 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-3);
}

/* Header */
.header {
  background-color: var(--neutral-100);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  padding: var(--space-3) 0;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-secondary);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary);
}

.logo-icon {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.nav {
  display: flex;
  gap: var(--space-4);
}

.nav-link {
  color: var(--neutral-700);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary);
  text-decoration: none;
}

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, rgba(110, 68, 255, 0.05), rgba(0, 229, 255, 0.05));
  padding: var(--space-7) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(110, 68, 255, 0.1) 0%, rgba(0, 229, 255, 0.05) 50%, transparent 70%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-title {
  margin-bottom: var(--space-3);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--neutral-700);
  margin-bottom: var(--space-4);
}

.btn {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  font-family: var(--font-primary);
}

.btn-primary {
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  text-decoration: none;
  color: white;
}

.btn-secondary {
  background: linear-gradient(90deg, var(--secondary), var(--secondary-dark));
  color: var(--neutral-900);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background: linear-gradient(90deg, var(--secondary-dark), var(--secondary));
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  text-decoration: none;
  color: var(--neutral-900);
}

/* Cards */
.card {
  background-color: var(--neutral-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-4);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.card-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  color: white;
}

/* Color Palette Section */
.color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.color-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.color-preview {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
}

.color-info {
  padding: var(--space-2);
  background-color: var(--neutral-100);
}

.color-name {
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.color-value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--neutral-600);
}

/* Typography Section */
.type-example {
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background-color: var(--neutral-100);
  box-shadow: var(--shadow-sm);
}

.type-name {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--neutral-600);
  margin-bottom: var(--space-2);
}

/* Components Section */
.component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-4);
}

.component-card {
  background-color: var(--neutral-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.component-preview {
  padding: var(--space-3);
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-md);
  background-color: var(--neutral-200);
}

.component-code {
  padding: var(--space-3);
  background-color: var(--neutral-900);
  border-radius: var(--radius-md);
  color: var(--neutral-200);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  overflow-x: auto;
}

/* Footer */
.footer {
  background-color: var(--neutral-900);
  color: var(--neutral-300);
  padding: var(--space-5) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.footer-logo {
  color: var(--neutral-100);
  margin-bottom: var(--space-3);
}

.footer-heading {
  color: var(--neutral-100);
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
}

.footer-link {
  color: var(--neutral-400);
  display: block;
  margin-bottom: var(--space-2);
}

.footer-link:hover {
  color: var(--primary-light);
}

.footer-bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--neutral-800);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  color: var(--neutral-400);
  transition: color var(--transition-fast);
}

.social-link:hover {
  color: var(--primary-light);
}

/* Utilities */
.text-gradient {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}

.bg-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.animate-fadeIn {
  animation: fadeIn var(--transition-normal) ease-in-out;
}

.animate-slideUp {
  animation: slideUp var(--transition-normal) ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* Responsive Design */
@media (max-width: 1024px) {
  html {
    font-size: 15px;
  }
  
  .grid {
    gap: var(--space-2);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .section {
    padding: var(--space-5) 0;
  }
  
  .hero {
    padding: var(--space-5) 0;
  }
  
  .nav {
    gap: var(--space-3);
  }
}

@media (max-width: 640px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  h3 {
    font-size: 1.75rem;
  }
  
  .header-container {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .component-grid {
    grid-template-columns: 1fr;
  }
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --neutral-100: #1f2933;
    --neutral-200: #323f4b;
    --neutral-300: #4a5568;
    --neutral-400: #7b8794;
    --neutral-500: #9aa5b1;
    --neutral-600: #cbd2d9;
    --neutral-700: #e4e7eb;
    --neutral-800: #f5f7fa;
    --neutral-900: #ffffff;
  }
  
  body {
    background-color: var(--neutral-200);
    color: var(--neutral-800);
  }
  
  .card, .type-example, .component-card, .color-info {
    background-color: var(--neutral-100);
  }
  
  .header {
    background-color: rgba(31, 41, 51, 0.8);
    backdrop-filter: blur(10px);
  }
  
  .component-preview {
    background-color: var(--neutral-200);
    border-color: var(--neutral-300);
  }
  
  .component-code {
    background-color: #0f172a;
  }
  
  .footer {
    background-color: #0f172a;
  }
}