/* Fade in */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-slow) forwards;
}

.fade-in-delay-1 {
  animation: fadeIn var(--transition-slow) 0.1s forwards;
  opacity: 0;
}

.fade-in-delay-2 {
  animation: fadeIn var(--transition-slow) 0.2s forwards;
  opacity: 0;
}

.fade-in-delay-3 {
  animation: fadeIn var(--transition-slow) 0.3s forwards;
  opacity: 0;
}

.fade-in-delay-4 {
  animation: fadeIn var(--transition-slow) 0.4s forwards;
  opacity: 0;
}

/* Pulse / Skeleton loading */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.skeleton {
  animation: pulse 1.5s ease-in-out infinite;
  background: rgba(100, 116, 139, 0.3);
  border-radius: var(--radius-md);
}

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

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Scale on hover */
.hover-scale {
  transition: transform var(--transition-fast);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* Slide up */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp 0.3s ease-out forwards;
}

/* Slide down */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-down {
  animation: slideDown 0.2s ease-out forwards;
}

/* Modal backdrop */
@keyframes fadeInBackdrop {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-backdrop {
  animation: fadeInBackdrop 0.2s ease-out forwards;
}

/* Progress bar */
@keyframes progress {
  from {
    width: 0%;
  }
}

.progress-animate {
  animation: progress 0.5s ease-out forwards;
}

/* Shake (for errors) */
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-4px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(4px);
  }
}

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

/* Bounce */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

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

/* Glow pulse */
@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
  }
}

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