/* Star Background Animation */
.star-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  background: transparent;
  pointer-events: none;
}

.star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  animation: twinkle 4s infinite ease-in-out alternate;
  box-shadow: 0 0 4px 1px rgba(255, 255, 255, 0.7);
}

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

/* Shooting Star */
.shooting-star {
  position: absolute;
  width: 100px;
  height: 2px;
  background: linear-gradient(to right, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.8) 50%, rgba(255, 255, 255, 0));
  border-radius: 50%;
  animation: shoot 3s linear forwards;
  z-index: 1;
  box-shadow: 0 0 10px 1px rgba(255, 255, 255, 0.5);
}

@keyframes shoot {
  0% {
    transform: translateX(0) translateY(0);
    opacity: 1;
    width: 0;
  }
  10% {
    width: 100px;
    opacity: 1;
  }
  100% {
    transform: translateX(1000px) translateY(1000px);
    opacity: 0;
  }
}