.container {
  --star-color: var(--star-color-internal, #fbbf24);
  --star-speed: var(--star-speed-internal, 1);
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
  position: fixed;
}

.star {
  position: absolute;
  background: var(--star-color);
  border-radius: 50%;
  animation: starFall calc(var(--duration) * var(--star-speed)) linear infinite;
  animation-delay: calc(var(--delay) * -1s);
}

/* Twinkling effect for static stars */
.twinkle {
  animation: twinkle calc(2s * var(--star-speed)) ease-in-out infinite;
}

.star.withTrail::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200%;
  height: 100%;
  background: linear-gradient(
    to right,
    transparent,
    color-mix(in srgb, var(--star-color) 60%, transparent)
  );
  transform: translateX(-100%);
  border-radius: 50%;
  filter: blur(1px);
}

.star.large {
  box-shadow: 0 0 10px var(--star-color), 0 0 20px var(--star-color);
}

.star.medium {
  box-shadow: 0 0 6px var(--star-color), 0 0 12px var(--star-color);
}

.star.small {
  box-shadow: 0 0 3px var(--star-color);
}

/* Trail effect for falling stars */
.trail {
  position: absolute;
  width: 1px;
  height: 40px;
  background: linear-gradient(
    to bottom,
    transparent,
    color-mix(in srgb, var(--star-color) 80%, white),
    var(--star-color),
    transparent
  );
  animation: trailFall calc(var(--duration) * var(--star-speed)) linear infinite;
  animation-delay: calc(var(--delay) * -1s);
  opacity: 0.8;
}

/* Burst effect when stars appear */
.burst {
  position: absolute;
  animation: burstFade calc(3s * var(--star-speed)) ease-out infinite;
  animation-delay: calc(var(--delay) * -1s);
}

.burst::before,
.burst::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--star-color) 70%, white) 0%,
    transparent 70%
  );
}

.burst::after {
  animation: burstExpand calc(3s * var(--star-speed)) ease-out infinite;
}

/* Density variants */
.container[data-density="sparse"] {
  --density-multiplier: 0.5;
}

.container[data-density="normal"] {
  --density-multiplier: 1;
}

.container[data-density="dense"] {
  --density-multiplier: 1.5;
}

.container[data-density="cosmic"] {
  --density-multiplier: 2.5;
}

/* Speed variants */
.container[data-speed="slow"] {
  --star-speed: 2;
}

.container[data-speed="normal"] {
  --star-speed: 1;
}

.container[data-speed="fast"] {
  --star-speed: 0.5;
}

.container[data-speed="meteor-shower"] {
  --star-speed: 0.25;
}

@keyframes starFall {
  0% {
    transform: translateY(-10vh) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(110vh) translateX(var(--drift, -20px)) rotate(180deg);
    opacity: 0;
  }
}

@keyframes twinkle {
  0%, 100% {
    opacity: 0.3;
    transform: scale(0.8);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

@keyframes trailFall {
  0% {
    transform: translateY(-50px) translateX(0) rotate(15deg);
    opacity: 0;
  }
  10% {
    opacity: 0.8;
  }
  100% {
    transform: translateY(110vh) translateX(var(--drift, -50px)) rotate(15deg);
    opacity: 0;
  }
}

@keyframes burstFade {
  0%, 100% {
    opacity: 0;
    transform: scale(0.5);
  }
  10% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes burstExpand {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(3);
    opacity: 0;
  }
}

/* Cross pattern for extra sparkle */
.cross::before,
.cross::after {
  content: '';
  position: absolute;
  background: var(--star-color);
}

.cross::before {
  width: 100%;
  height: 20%;
  top: 40%;
}

.cross::after {
  width: 20%;
  height: 100%;
  left: 40%;
}