/* Shake Animation */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-8px); }
  20%, 40%, 60%, 80% { transform: translateX(8px); }
}

.shake {
  animation: shake 0.5s ease-in-out;
}

/* Success Pop */
@keyframes successPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.success-pop {
  animation: successPop 0.3s var(--ease);
}

/* Wrong Flash */
@keyframes wrongFlash {
  0%, 100% { background-color: transparent; }
  50% { background-color: rgba(239, 68, 68, 0.3); }
}

.wrong-flash {
  animation: wrongFlash 0.3s ease-in-out 2;
}

/* Confetti */
@keyframes confettiFall {
  0% {
    transform: translateY(-100%) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(400px) rotate(720deg);
    opacity: 0;
  }
}

.confetti-piece {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  animation: confettiFall 2s ease-out forwards;
}

/* Ripple Effect */
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.6;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  pointer-events: none;
  animation: ripple 0.6s ease-out;
}

/* Slide In */
@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.slide-in-right {
  animation: slideInRight 0.4s var(--ease-out);
}

/* Bounce */
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.bounce {
  animation: bounce 0.5s var(--ease);
}

/* Glow Pulse */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px var(--primary-glow); }
  50% { box-shadow: 0 0 40px var(--primary-glow), 0 0 60px var(--primary-glow); }
}

.glow-pulse {
  animation: glowPulse 2s ease-in-out infinite;
}

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

.float {
  animation: float 3s ease-in-out infinite;
}

/* Scale In */
@keyframes scaleIn {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.scale-in {
  animation: scaleIn 0.3s var(--ease);
}

/* Fade In */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.3s ease;
}

/* Fade In Up */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fadeInUp 0.4s var(--ease-out);
}

/* Stagger Children */
.stagger-children > * {
  opacity: 0;
  animation: fadeInUp 0.4s var(--ease-out) forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.2s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.3s; }
.stagger-children > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-children > *:nth-child(8) { animation-delay: 0.4s; }

/* Neon Text */
@keyframes neonFlicker {
  0%, 100% { text-shadow: 0 0 10px var(--primary), 0 0 20px var(--primary), 0 0 40px var(--primary); }
  50% { text-shadow: 0 0 5px var(--primary), 0 0 10px var(--primary), 0 0 20px var(--primary); }
}

.neon-text {
  animation: neonFlicker 2s ease-in-out infinite;
}

/* Rotate */
@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.rotate {
  animation: rotate 2s linear infinite;
}

/* Ping */
@keyframes ping {
  0% { transform: scale(1); opacity: 1; }
  75%, 100% { transform: scale(2); opacity: 0; }
}

.ping {
  animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

/* Progress Bar Shine */
@keyframes progressShine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}