@keyframes title-appear {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes desc-appear {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes buttons-appear {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes footer-appear {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes star-twinkle {
  0%, 100% {
    opacity: 0.6;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

@keyframes star-pop {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  60% {
    transform: scale(1.2);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes result-appear {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes hint-show {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.05);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

@keyframes error-show {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
  }
  30% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.05);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

.hint-show {
  animation: hint-show 0.3s ease-out;
}

.error-show {
  animation: error-show 0.3s ease-out;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 15px rgba(255, 215, 100, 0.1);
  }
  50% {
    box-shadow: 0 0 30px rgba(255, 215, 100, 0.3);
  }
}

@keyframes constellation-complete {
  0% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.5);
  }
  100% {
    filter: brightness(1.2);
  }
}

.level-select-page::-webkit-scrollbar {
  width: 6px;
}

.level-select-page::-webkit-scrollbar-track {
  background: transparent;
}

.level-select-page::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

.level-select-page::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

.result-page::-webkit-scrollbar {
  width: 6px;
}

.result-page::-webkit-scrollbar-track {
  background: transparent;
}

.result-page::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}