@keyframes spin-propeller {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes hover-float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes gentle-rotate {
  0%,
  100% {
    transform: rotate(-5deg);
  }
  50% {
    transform: rotate(5deg);
  }
}

@keyframes pulse-glow {
  0%,
  100% {
    box-shadow: 0 0 10px var(--electric-blue);
  }
  50% {
    box-shadow: 0 0 30px var(--electric-blue), 0 0 60px rgba(0, 217, 255, 0.3);
  }
}

@keyframes shake-invalid {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-10px);
  }
  75% {
    transform: translateX(10px);
  }
}

@keyframes beat-pulse {
  0% {
    transform: scale(1);
  }
  35% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes star-drift {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 0 320px;
  }
}

@keyframes fly-in {
  0% {
    transform: translateY(-90px) scale(0.35);
    opacity: 0;
  }
  100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

@keyframes fade-out {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes logo-disco {
  0% { color: #ff0055; }
  25% { color: #00d9ff; }
  50% { color: #39ff14; }
  75% { color: #f8f000; }
  100% { color: #ff00dd; }
}

.placed-drone {
  animation: hover-float 2.3s ease-in-out infinite;
  will-change: transform;
}

.placed-drone .drone-placeholder {
  animation: gentle-rotate 2s ease-in-out infinite;
}

.placed-drone.beat-hit {
  animation: beat-pulse 0.35s ease;
}

.stage-wrapper.beat-border .stage-border-pulse {
  animation: pulse-glow 0.4s ease;
}

.disco-mode .game-title {
  animation: logo-disco 0.35s linear infinite;
}

.fade-away {
  animation: fade-out 0.3s ease forwards;
}

@keyframes crt-click-shake {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2px, 1px); }
  50% { transform: translate(2px, -1px); }
  75% { transform: translate(-1px, -2px); }
  100% { transform: translate(0, 0); }
}

.crt-click-shake {
  animation: crt-click-shake 0.25s linear;
}

@keyframes glitchFlicker {
  0% { opacity: 1; }
  20% { opacity: 0.92; }
  40% { opacity: 1; }
  60% { opacity: 0.88; }
  80% { opacity: 1; }
  100% { opacity: 0.95; }
}

.crt-glitch-mode {
  animation: glitchFlicker 0.15s infinite;
}

.crt-distort-mode {
  filter: contrast(1.4) saturate(1.5) hue-rotate(5deg);
}