/* ===== Icarus Color Palette — Design Reference ===== */

:root {
  /* Core Theme */
  --bg: #09090b;
  --fg: #fafafa;
  --card: #18181b;
  --card-fg: #fafafa;
  --secondary: #27272a;
  --muted-fg: #a1a1aa;
  --primary: #7c3aed;
  --primary-fg: #f9fafb;
  --selection: #4c1d95;
  --destructive: #ef4444;
  --border: #27272a;

  /* Layout */
  --sidebar: #141114;
  --surface: #1b1b1b;

  /* Typography */
  --font-display: 'Syne', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-display);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* Subtle paper-like grain overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  z-index: 9999;
}

/* ===== Hero ===== */
.hero {
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  background:
    linear-gradient(180deg, rgba(124, 58, 237, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
    var(--bg);
}

.hero-content {
  max-width: 640px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0;
  background: linear-gradient(135deg, var(--fg) 0%, var(--muted-fg) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--primary);
  margin: var(--space-xs) 0 var(--space-sm);
  font-weight: 600;
}

.hero-meta {
  color: var(--muted-fg);
  font-size: 0.9rem;
}

/* ===== Sections ===== */
.color-section {
  padding: var(--space-xl) var(--space-lg);
  max-width: 1280px;
  margin: 0 auto;
}

.color-section[data-theme="dark"] {
  background: var(--bg);
}

.color-section-light {
  background: linear-gradient(180deg, #1a1a1f 0%, #0f0f12 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.color-section h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 var(--space-lg);
  padding-bottom: var(--space-sm);
  color: var(--fg);
  letter-spacing: -0.02em;
  border-bottom: 2px solid var(--border);
}

.color-section-light h2 {
  color: var(--fg);
}

/* ===== Color Grid ===== */
.color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}

.color-grid-large {
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

/* ===== Color Cards ===== */
.color-card {
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.color-card:hover {
  border-color: var(--muted-fg);
  transform: translateY(-2px);
}

.accent-card:hover {
  border-color: var(--primary);
}

.destructive-card:hover {
  border-color: var(--destructive);
}

.swatch {
  height: 140px;
  min-height: 140px;
  background-color: var(--swatch);
  position: relative;
}

/* Subtle inner highlight for depth on swatches */
.swatch::after {
  content: '';
  position: absolute;
  inset: 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

/* Ensure swatch borders on light colors */
.color-section-light .swatch {
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
}

.color-card code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  padding: var(--space-sm) var(--space-md) var(--space-xs);
  color: var(--primary);
}

.color-section-light .color-card code {
  color: var(--primary);
}

.color-card p {
  margin: 0;
  padding: 0 var(--space-md) var(--space-md);
  font-size: 0.8rem;
  color: var(--muted-fg);
  line-height: 1.4;
}

.color-section-light .color-card p {
  color: rgba(250, 250, 250, 0.7);
}

/* ===== Footer ===== */
.footer {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer p {
  margin: var(--space-xs) 0;
  font-size: 0.85rem;
  color: var(--muted-fg);
}

/* ===== Print Styles ===== */
@media print {
  body::before {
    display: none;
  }

  :root {
    --bg: #ffffff;
    --fg: #111111;
    --card: #f5f5f5;
    --card-fg: #111111;
    --muted-fg: #444444;
    --border: #e0e0e0;
  }

  body {
    background: white;
    color: #111;
  }

  .hero {
    background: white;
    padding-bottom: 1rem;
  }

  .hero h1 {
    background: none;
    -webkit-text-fill-color: #111;
  }

  .hero-subtitle {
    color: #5b21b6;
  }

  .hero-meta {
    color: #666;
  }

  .color-section,
  .color-section-light {
    background: white !important;
    border: none !important;
    break-inside: avoid;
  }

  .color-section h2 {
    color: #111;
    border-bottom: 2px solid #111;
    padding-bottom: 0.5rem;
  }

  .color-card {
    background: #fafafa;
    border: 1px solid #ddd;
    break-inside: avoid;
  }

  .color-card code {
    color: #333;
  }

  .color-card p {
    color: #555;
  }

  .footer {
    border-top: 1px solid #ddd;
  }

  .footer p {
    color: #666;
  }

  /* Ensure color swatches print correctly */
  .swatch {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}