:root {
  --elevation-0: none;
  --elevation-1: 0 1px 2px rgba(0,0,0,0.24), 0 1px 3px rgba(0,0,0,0.12);
  --elevation-2: 0 2px 6px rgba(0,0,0,0.32), 0 4px 12px rgba(0,0,0,0.18);
  --elevation-3: 0 6px 16px rgba(0,0,0,0.40), 0 8px 24px rgba(0,0,0,0.24);
  --elevation-4: 0 12px 32px rgba(0,0,0,0.48), 0 16px 48px rgba(0,0,0,0.32);
  --elevation-5: 0 24px 64px rgba(0,0,0,0.56), 0 32px 96px rgba(0,0,0,0.40);
  --elevation-brand-glow:    0 0 24px rgba(22, 16, 2, 0.4), 0 8px 24px rgba(255,143,0,0.32);
  --elevation-brand-glow-lg: 0 0 48px rgba(255,179,0,0.48), 0 16px 48px rgba(255,143,0,0.40);
}