:root {
  /* ─── Spacing (8px base) ─────────────────────── */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;

  /* ─── Typography — fluid, 20px min ───────────── */
  --text-xs:   clamp(0.875rem, 0.8rem + 0.25vw, 1rem);
  --text-sm:   clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-base: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-lg:   clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-xl:   clamp(2rem, 1.6rem + 2vw, 3rem);
  --text-2xl:  clamp(2.5rem, 2rem + 2.5vw, 4rem);

  /* ─── Display face: the wordmark, Keep title, banners and podium ── */
  --font-display: 'Cinzel', 'Trajan Pro', Georgia, serif;

  /* ─── Touch targets ──────────────────────────── */
  --tap-min: 3rem; /* 48px — exceeds WCAG 2.1 AA */

  /* ─── Line height ────────────────────────────── */
  --leading-tight:  1.25;
  --leading-normal: 1.6;
  --leading-loose:  1.8;

  /* ─── Radius ─────────────────────────────────── */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* ─── Shadows ────────────────────────────────── */
  --shadow-sm: 0 1px 3px rgba(0 0 0 / 0.12);
  --shadow-md: 0 4px 12px rgba(0 0 0 / 0.16);
  --shadow-lg: 0 8px 32px rgba(0 0 0 / 0.2);

  /* ─── Keep (home/lobby) palette ──────────────── */
  --color-parchment:    #f5f0e8;
  --color-parchment-dk: #e8e0d0;
  --color-ink:          #2c2416;
  --color-stone:        #8b7d6b;
  --color-stone-lt:     #b5a898;
  --color-gold:         #c9a84c;
  --color-gold-dk:      #a07c30;
  --color-crimson:      #8b1a1a;
  --color-forest:       #2d5a27;

  /* ─── Semantic tokens (light mode defaults) ──── */
  /* Components use these, never the raw palette above, so dark.css can
     swap them without flipping surfaces that should stay dark (header). */
  color-scheme: light;
  --color-bg:          var(--color-parchment);
  --color-bg-raised:   #fff;
  --color-surface:     var(--color-parchment-dk);
  --color-text:        var(--color-ink);
  --color-text-muted:  #6b5e4e;
  --color-border:      var(--color-stone-lt);
  --color-border-input: var(--color-stone);
  --color-border-focus: #0066cc;
  --color-focus-ring:  0 0 0 3px rgba(0 102 204 / 0.5);
  --color-on-focus:    #fff;

  /* Header / mobile menu / banners — dark in both themes */
  --color-chrome:       var(--color-ink);
  --color-chrome-text:  var(--color-parchment);
  --color-chrome-hover: rgba(255 255 255 / 0.1);
  --color-chrome-line:  rgba(255 255 255 / 0.12);

  /* Buttons */
  --color-primary:       var(--color-ink);
  --color-primary-hover: #4a3d2c;
  --color-on-primary:    var(--color-parchment);
  --color-gold-hover:    #b8953a;
  --color-on-gold:       var(--color-ink);
  --color-gold-text:     #7d5f1e;

  /* ─── Status colors ──────────────────────────── */
  --color-success:  #1a6b2b;
  --color-warning:  #8a5e00;
  --color-danger:   #9b1c1c;
  --color-info:     #1a4e8a;
  --color-complete: #3730a3;
  --color-danger-hover: #7f1d1d;
  --color-on-danger:    #fff;
  --color-success-bg:   #e8f6ec;
  --color-danger-bg:    #fdecec;
  --color-info-bg:      #e8f0fb;
  --color-complete-bg:  #e6e9fd;
  --color-gold-bg:      #fbf3d5;

  /* ─── Game theme slots ───────────────────────── */
  --game-primary:   #5a3e2b;
  --game-secondary: #e8d5a3;
  --game-accent:    #c9a84c;

  /* ─── Transition ─────────────────────────────── */
  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;

  /* ─── Z-layers ───────────────────────────────── */
  --z-base:    0;
  --z-overlay: 100;
  --z-modal:   200;
  --z-toast:   300;
}