#starfall {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  pointer-events: none;
}

.bg-vignette {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
    circle at 50% 35%,
    transparent 0 55%,
    rgba(0, 0, 0, 0.62) 90%
  );
}

.bg-grain {
  position: fixed;
  inset: -20%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  animation: bgDrift 10s linear infinite;
}

@keyframes bgDrift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-80px, 55px, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .bg-grain {
    animation: none !important;
  }
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
  z-index: 40;
}

.nav-backdrop.active {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 1001px) {
  .nav-backdrop {
    display: none;
  }
}