@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

@keyframes slideOutRight {
  from { transform: translateX(0); }
  to { transform: translateX(100%); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

.fade-in-up {
  animation: fadeInUp var(--transition-normal) forwards;
}

.scale-in {
  animation: scaleIn var(--transition-normal) forwards;
}

.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }

.transition-all {
  transition: all var(--transition-fast);
}

.transition-colors {
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.loading-skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    var(--bg-hover) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: pulse 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.event-card-enter {
  animation: fadeInUp 200ms ease forwards;
}