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

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

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(100%);
  }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

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

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

@keyframes progressRing {
  from { stroke-dashoffset: 314; } /* roughly 2 * pi * 50 */
  to { stroke-dashoffset: 0; }
}

@keyframes glow {
  0% { box-shadow: 0 0 10px rgba(139, 92, 246, 0.2); }
  50% { box-shadow: 0 0 25px rgba(139, 92, 246, 0.6); }
  100% { box-shadow: 0 0 10px rgba(139, 92, 246, 0.2); }
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translate(-50%, -20px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  to {
    opacity: 0;
    transform: translate(-50%, -20px);
  }
}

/* Utility Classes */
.animate-fade-in {
  animation: fadeIn 0.3s ease forwards;
}

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

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

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

.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
  border-radius: var(--glass-radius);
}

.screen-transition {
  animation: fadeIn 0.3s ease forwards;
}