*:where(html) {
  --backdrop-opacity-0: opacity(0);
  --backdrop-opacity-5: opacity(0.05);
  --backdrop-opacity-10: opacity(0.1);
  --backdrop-opacity-15: opacity(0.15);
  --backdrop-opacity-20: opacity(0.2);
  --backdrop-opacity-25: opacity(0.25);
  --backdrop-opacity-30: opacity(0.3);
  --backdrop-opacity-35: opacity(0.35);
  --backdrop-opacity-40: opacity(0.4);
  --backdrop-opacity-45: opacity(0.45);
  --backdrop-opacity-50: opacity(0.5);
  --backdrop-opacity-55: opacity(0.55);
  --backdrop-opacity-60: opacity(0.6);
  --backdrop-opacity-65: opacity(0.65);
  --backdrop-opacity-70: opacity(0.7);
  --backdrop-opacity-75: opacity(0.75);
  --backdrop-opacity-80: opacity(0.8);
  --backdrop-opacity-85: opacity(0.85);
  --backdrop-opacity-90: opacity(0.9);
  --backdrop-opacity-95: opacity(0.95);
  --backdrop-opacity-100: opacity(1);
}