/* Design tokens — colors, typography, spacing
   Validates: Requirements 6.5, 6.7 */

:root {
  /* Colors */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-surface: #ffffff;
  --color-surface-alt: #f8fafc;
  --color-border: #e2e8f0;
  --color-text: #0f172a;
  --color-text-muted: #64748b;

  /* Typography */
  --font-sans: system-ui, -apple-system, sans-serif;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-surface: #0f172a;
    --color-surface-alt: #1e293b;
    --color-border: #334155;
    --color-text: #f8fafc;
    --color-text-muted: #94a3b8;
  }
}