:root {
  --color-background: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-muted: #f1f5f9;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-primary: #0f172a;
  --color-primary-hover: #1e293b;
  --color-secondary: #2563eb;
  --color-accent: #2563eb;
  --color-success: #15803d;
  --color-warning: #b45309;
  --color-danger: #b42318;
  --color-focus: #2563eb;
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --radius-sm: .25rem;
  --radius-md: .375rem;
  --radius-lg: .5rem;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow-md: 0 8px 20px rgba(15, 23, 42, .08);
  --content-width: 78rem;
  --content-narrow: 48rem;
  --header-height: 4rem;
  --transition: 160ms ease;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Noto Sans Devanagari", sans-serif;
}