/* Animations - Keyframes and Transitions */

/* ========== KEYFRAMES ========== */

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

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    transform: translate(-50%, 100px);
    opacity: 0;
  }
  to {
    transform: translate(-50%, 0);
    opacity: 1;
  }
}

@keyframes slideDown {
  from {
    transform: translate(-50%, 0);
    opacity: 1;
  }
  to {
    transform: translate(-50%, 100px);
    opacity: 0;
  }
}

@keyframes slideInFromRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInFromLeft {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

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

/* ========== ANIMATION CLASSES ========== */

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

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

.slide-down {
  animation: slideDown 0.3s ease;
}

.slide-in-right {
  animation: slideInFromRight 0.3s ease;
}

.slide-in-left {
  animation: slideInFromLeft 0.3s ease;
}

/* ========== SPINNER ========== */

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

.spinner-lg {
  width: 48px;
  height: 48px;
  border-width: 4px;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

/* ========== ACCESSIBILITY ========== */

/* Focus visible para navegación por teclado */
*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Remover outline en click con mouse */
*:focus:not(:focus-visible) {
  outline: none;
}

/* Respeta las preferencias de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}