:root {
  /* Color palette */
  --ink: #0A0F0D;
  --ink-elevated: #111815;
  --ink-subtle: #1A231F;
  --bone: #F5F2EC;
  --bone-dim: #B8B2A5;
  --bone-muted: #7A756A;
  --moss: #4A6B52;
  --moss-light: #7FA588;
  --moss-deep: #2D4235;
  --amber: #D9A441;
  --amber-glow: #F4C869;
  --amber-deep: #8B6723;
  --river: #2C3E3A;
  --river-deep: #1A2623;
  --error: #D64545;
  --success: #6BA878;

  /* Typography */
  --font-display: 'Instrument Serif', 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  /* Type scale (fluid) */
  --display-xl: clamp(3rem, 8vw, 7.5rem);
  --display-lg: clamp(2.5rem, 6vw, 5rem);
  --display-md: clamp(2rem, 4vw, 3.5rem);
  --heading: clamp(1.5rem, 3vw, 2.25rem);
  --body-xl: clamp(1.125rem, 2vw, 1.375rem);
  --body: 1rem;
  --caption: 0.875rem;
  --overline: 0.75rem;

  /* Spacing scale (base 8) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  --space-40: 10rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;

  /* Borders */
  --border-hairline: 1px solid rgba(245, 242, 236, 0.08);
  --border-subtle: 1px solid rgba(245, 242, 236, 0.12);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(217, 164, 65, 0.15);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.2s;
  --duration-base: 0.4s;
  --duration-slow: 0.8s;

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 860px;
  --container-padding: clamp(1.25rem, 4vw, 3rem);

  /* Z-index */
  --z-base: 0;
  --z-content: 10;
  --z-nav: 100;
  --z-overlay: 200;
  --z-modal: 300;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 0s;
    --duration-base: 0s;
    --duration-slow: 0s;
  }
}