/**
 * Loading States & Skeleton Loaders
 */

/* Loading Indicator */
.loading-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
  min-height: 200px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-message {
  margin-top: var(--spacing-md);
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
}

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

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .loading-spinner {
    animation: none;
    border-top-color: var(--color-accent);
    opacity: 0.6;
  }
}

/* Skeleton Loader */
.skeleton-loader {
  padding: var(--spacing-md);
}

.skeleton-item {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
}

.skeleton-line {
  height: 16px;
  background: linear-gradient(
    90deg,
    var(--color-background-alt) 0%,
    var(--color-surface-alt) 50%,
    var(--color-background-alt) 100%
  );
  background-size: 200% 100%;
  border-radius: 4px;
  margin-bottom: var(--spacing-sm);
  animation: shimmer 1.5s ease-in-out infinite;
}

.skeleton-line:last-child {
  margin-bottom: 0;
}

.skeleton-title {
  height: 24px;
  width: 70%;
  margin-bottom: var(--spacing-md);
}

.skeleton-text {
  width: 100%;
}

.skeleton-text.short {
  width: 60%;
}

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

@media (prefers-reduced-motion: reduce) {
  .skeleton-line {
    animation: none;
    background: var(--color-background-alt);
  }
}

/* Error State */
.error-message {
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
  background-color: #fee;
  border: 1px solid #fcc;
  border-radius: var(--radius-small);
  color: #c33;
}

.error-message h3 {
  margin: 0 0 var(--spacing-sm) 0;
  color: #c33;
  font-size: var(--font-size-large);
}

.error-message p {
  margin: 0;
  font-size: var(--font-size-small);
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
  .error-message {
    background-color: #4a1a1a;
    border-color: #8a3333;
    color: #faa;
  }

  .error-message h3 {
    color: #faa;
  }
}

/* Fade in animation for loaded content */
.fade-in {
  animation: fadeIn 0.3s ease-in;
}

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

@media (prefers-reduced-motion: reduce) {
  .fade-in {
    animation: none;
  }
}