:root {
  /* Casino palette */
  --felt-deep:        #0a3d2f;
  --felt-mid:         #0f5c46;
  --felt-light:       #14785a;
  --gold:             #d4af37;
  --gold-light:       #f4d775;
  --gold-dark:        #8a6d1f;
  --cream:            #f4ecd8;
  --ivory:            #fffaf0;
  --black-deep:       #0d0d0d;
  --red-card:         #c41e1e;
  --shadow-deep:      rgba(0,0,0,0.55);
  --shadow-soft:      rgba(0,0,0,0.25);
  --bg-1: #0f5c46;
  --bg-2: #0a3d2f;
  --bg-3: #062a20;
  /* Surfaces */
  --bg-gradient: radial-gradient(ellipse at center,
                  var(--felt-light) 0%,
                  var(--felt-mid) 45%,
                  var(--felt-deep) 100%);

  /* Typography */
  --font-display: 'Playfair Display', 'Vazirmatn', Georgia, serif;
  --font-ui:      'Inter', 'Vazirmatn', system-ui, sans-serif;

  /* Sizing */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;

  /* Transitions */
  --t-fast: 150ms ease;
  --t-mid:  300ms ease;
  --t-slow: 600ms ease;
}
/* RED variant */
body[data-bg="red"] {
  --bg-1: #a8493e;
  --bg-2: #7a2a2a;
  --bg-3: #3e1414;
}

/* BLUE variant */
body[data-bg="blue"] {
  --bg-1: #3a6a99;
  --bg-2: #1f4670;
  --bg-3: #0f2438;
}