:root {
  /* Colors — ROP: underground comix since 1969 */
  --color-primary: #8b4513;
  --color-primary-hover: #6d3410;
  --color-accent: #d4a017;
  --color-accent-hover: #b8860b;
  --color-success: #007100;
  --color-success-hover: #005a00;
  --color-warning: #d4a017;
  --color-warning-hover: #b8860b;
  --color-danger: #c41e3a;
  --color-danger-hover: #a01830;
  --color-info: #2079d2;
  --color-info-hover: #18599b;
  --color-text: #2c2c2c;
  --color-text-muted: #666;
  --color-text-inverse: #faf8f5;
  --color-bg: #faf8f5;
  --color-surface: #fff;
  --color-border: #d5d0c8;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;

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

  /* Borders */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 5%);
  --shadow-md: 0 4px 6px rgb(0 0 0 / 7%);
}

/* Dark mode */
[data-theme='dark'] {
  --color-primary: #c4813a;
  --color-primary-hover: #d4a060;
  --color-accent: #e8b830;
  --color-accent-hover: #d4a017;
  --color-success: #34d399;
  --color-success-hover: #6ee7b7;
  --color-warning: #e8b830;
  --color-warning-hover: #fcd34d;
  --color-danger: #fb7185;
  --color-danger-hover: #fda4af;
  --color-info: #60a5fa;
  --color-info-hover: #93bbfd;
  --color-text: #e7e5e0;
  --color-text-muted: #a8a29e;
  --color-text-inverse: #1c1917;
  --color-bg: #1c1917;
  --color-surface: #292524;
  --color-border: #44403c;
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 30%);
  --shadow-md: 0 4px 6px rgb(0 0 0 / 40%);
}