:root {
  /* Colors */
  --color-bg: #ffffff;
  --color-bg-subtle: #f8f8f8;
  --color-bg-muted: #f0f0f0;
  --color-border: #e5e5e5;
  --color-border-strong: #ccc;
  --color-text: #1a1a1a;
  --color-text-muted: #6b6b6b;
  --color-text-light: #999;
  --color-accent: #2a2a2a;
  --color-accent-hover: #444;
  --color-danger: #c53030;
  --color-danger-hover: #9b2c2c;
  --color-success: #276749;
  --color-white: #ffffff;
  --color-accent-text: #ffffff;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;

  /* Typography */
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-heading: Georgia, "Times New Roman", serif;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;
  --line-height: 1.6;
  --line-height-tight: 1.2;

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1400px;
  --radius: 4px;
  --radius-lg: 8px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);

  /* Admin-specific tokens (dark theme context) */
  --color-selection: #2563eb;
  --color-selection-bg: rgba(37, 99, 235, 0.15);
  --color-badge-unlisted: #92400e;
  --color-badge-unlisted-bg: rgba(146, 64, 14, 0.2);
  --color-badge-unlisted-text: #fbbf24;
  --tree-width: 220px;
  --header-strip-bg: rgba(255, 255, 255, 0.03);
}