/**
 * Shared Styles for Name Generator Pages
 * 
 * Design principles:
 * - Mobile-first responsive design
 * - High contrast for accessibility
 * - Performant animations (transform/opacity only)
 * - CSS custom properties for easy theming
 * 
 * To customize per-generator, override CSS variables in the HTML:
 * <style>:root { --accent: #custom-color; }</style>
 */

/* ==========================================================================
   CSS Custom Properties (Theme Variables)
   ========================================================================== */
:root {
  /* Colors - Warm terracotta and sage palette */
  --bg-primary: #1a1814;
  --bg-secondary: #252019;
  --bg-card: #2d2720;
  --text-primary: #f5f0e8;
  --text-secondary: #b8a99a;
  --text-muted: #7d6f5f;
  --accent: #d4785a;
  --accent-hover: #e8936f;
  --accent-glow: rgba(212, 120, 90, 0.3);
  --success: #8fbc8f;
  --border: #3d352c;
  
  /* Typography */
  --font-display: 'Crimson Pro', Georgia, serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Sizing */
  --max-width: 48rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* ==========================================================================
   Base Reset & Typography
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
}

/* Subtle gradient background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 0%, rgba(212, 120, 90, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(143, 188, 143, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 var(--space-md);
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  margin: 0 0 var(--space-md);
}

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

a:hover, a:focus {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ==========================================================================
   Layout Components
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md);
}

.generator-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.page-header {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  margin-bottom: var(--space-sm);
}

.page-header .tagline {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 36rem;
  margin: 0 auto;
}

/* Main Content */
.generator-main {
  flex: 1;
  padding: var(--space-xl) var(--space-md);
}

/* ==========================================================================
   Generator UI Components
   ========================================================================== */
.generator-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

/* Primary Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: 
    background var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  box-shadow: var(--shadow-md), 0 0 0 0 var(--accent-glow);
}

.btn:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 20px var(--accent-glow);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Button Icon */
.btn-icon {
  width: 1.25em;
  height: 1.25em;
}

/* ==========================================================================
   Results Grid
   ========================================================================== */
.results-section {
  max-width: var(--max-width);
  margin: 0 auto;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.results-header h2 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--text-secondary);
}

.results-hint {
  font-size: 0.875rem;
  color: var(--text-muted);
}

#results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}

/* Name Card */
.name-item {
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  font-family: var(--font-display);
  font-size: 1.25rem;
  text-align: center;
  cursor: pointer;
  transition: 
    transform var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  animation: fadeInUp 300ms ease backwards;
}

.name-item:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.name-item:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.name-item.copied {
  border-color: var(--success);
  animation: pulse 300ms ease;
}

.name-item.copied::after {
  content: 'Copied!';
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--success);
  margin-top: var(--space-xs);
}

/* ==========================================================================
   Loading & Error States
   ========================================================================== */
.loading-state {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-xl);
  color: var(--text-secondary);
}

.spinner {
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 800ms linear infinite;
}

.error-state {
  padding: var(--space-lg);
  background: rgba(212, 120, 90, 0.1);
  border: 1px solid var(--accent);
  border-radius: var(--border-radius);
  color: var(--accent);
  text-align: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.page-footer {
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.page-footer a {
  color: var(--text-secondary);
}

/* ==========================================================================
   Content Sections (Below the Fold)
   ========================================================================== */
.content-section {
  max-width: var(--max-width);
  margin: var(--space-2xl) auto;
  padding: 0 var(--space-md);
}

.content-section h2 {
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-sm);
}

.content-section p {
  color: var(--text-secondary);
}

.content-section ul, .content-section ol {
  color: var(--text-secondary);
  padding-left: var(--space-lg);
}

.content-section li {
  margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Homepage Specific
   ========================================================================== */
.hero {
  text-align: center;
  padding: var(--space-3xl) var(--space-md);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
}

.generators-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
  max-width: 64rem;
  margin: 0 auto;
  padding: var(--space-md);
}

.generator-card {
  display: block;
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-lg);
  text-decoration: none;
  transition: 
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.generator-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.generator-card h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.generator-card p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.9375rem;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.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;
}

[hidden] {
  display: none !important;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (min-width: 640px) {
  .container {
    padding: var(--space-lg);
  }
  
  .page-header {
    padding: var(--space-3xl) var(--space-lg);
  }
  
  #results {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

@media (min-width: 1024px) {
  #results {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}