:where(html){--backdrop-brightness-0:brightness(0);--backdrop-brightness-50:brightness(.5);--backdrop-brightness-75:brightness(.75);--backdrop-brightness-90:brightness(.9);--backdrop-brightness-95:brightness(.95);--backdrop-brightness-100:brightness(1);--backdrop-brightness-105:brightness(1.05);--backdrop-brightness-110:brightness(1.1);--backdrop-brightness-125:brightness(1.25);--backdrop-brightness-150:brightness(1.5);--backdrop-brightness-200:brightness(2)}