.snowfall {
  position: fixed;
  z-index: 35;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  contain: strict;
}

.snowfall__flake {
  position: absolute;
  top: -12vh;
  left: var(--snow-x);
  width: var(--snow-size);
  height: var(--snow-size);
  border-radius: 50%;
  opacity: var(--snow-opacity);
  background: rgba(255, 255, 255, .92);
  transform: translate3d(0, -12vh, 0);
  animation: snowfall-fall var(--snow-duration) linear var(--snow-delay) infinite;
  will-change: transform;
}

.snowfall.is-paused .snowfall__flake {
  animation-play-state: paused;
}

@keyframes snowfall-fall {
  to {
    transform: translate3d(var(--snow-drift), 118vh, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .snowfall {
    display: none;
  }
}