:root[data-theme="artdeco"] {
  --color-bg:              #0c0a09;
  --color-surface:         #1c1917;
  --color-surface-alt:     #292524;
  --color-border:          #78350f;
  --color-primary:         #b45309;
  --color-primary-hover:   #92400e;
  --color-primary-glow:    rgba(180, 83, 9, 0.35);
  --color-text:            #fef3c7;
  --color-text-muted:      #fde68a;
  --color-text-on-primary: #0c0a09;
  --color-accent:          #f59e0b;
  --font-heading:          'Playfair Display', Georgia, serif;
  --font-body:             'Inter', system-ui, sans-serif;
  --radius-sm:             2px;
  --radius-md:             4px;
  --radius-lg:             8px;
  --radius-full:           9999px;
  --transition:            all 0.3s ease;
  --shadow-sm:             0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:             0 4px 20px rgba(0,0,0,0.5);
  --shadow-lg:             0 8px 40px rgba(0,0,0,0.6);
  --shadow-neu-out:        none;
  --shadow-neu-in:         none;
}