:root {
  /* Colors */
  --color-bg: #1a1a1a;
  --color-bg-elevated: #222222;
  --color-bg-subtle: #2a2a2a;
  --color-border: #333333;
  --color-text-primary: #e8e8e8;
  --color-text-secondary: #808080;
  --color-text-muted: #5a5a5a;
  --color-text-white: #ffffff;
  --color-accent: #c9a84c;
  --color-accent-dim: #a08838;
  --color-accent-glow: rgba(201, 168, 76, 0.15);

  /* Typography */
  --font-heading: 'IBM Plex Serif', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', 'Monaco', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.563rem;
  --text-3xl: 1.953rem;
  --text-4xl: 2.441rem;
  --text-hero: clamp(2.2rem, 4vw + 1rem, 3.8rem);

  --leading-tight: 1.2;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;

  /* Spacing (8px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Layout */
  --container-max: 1200px;
  --container-padding: var(--space-5);
  --nav-height: 72px;

  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}