/* public/css/animations.css */

/* Keyframes */
@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  0% {
    opacity: 0;
    transform: translateY(-10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  0% {
    opacity: 0;
    transform: translateX(20px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

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

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes scaleIn {
  0% {
    opacity: 0;
    transform: scale(0.95);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes breathe {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.8; }
}

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

.animate-fade-in-up {
  animation: fadeInUp 0.4s ease;
}

.animate-scale-in {
  animation: scaleIn 0.3s ease;
}

.animate-slide-in {
  animation: slideIn 0.3s ease;
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-elevated) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.writing-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-md);
  color: var(--text-muted);
  font-family: var(--font-ui);
  animation: breathe 2s ease-in-out infinite;
}

.writing-indicator img {
  max-width: 80px;
  max-height: 80px;
  border-radius: var(--radius-md);
}