/**
 * Skeleton Loader Styles
 * Animated placeholder content while loading
 */

/* Base skeleton container */
.skeleton-container {
  padding: 1rem;
  animation: skeletonFadeIn 0.3s ease;
}

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

/* Base skeleton box with shimmer */
.skeleton-box {
  background: linear-gradient(
    90deg,
    var(--skeleton-base, #e5e7eb) 0%,
    var(--skeleton-shine, #f3f4f6) 50%,
    var(--skeleton-base, #e5e7eb) 100%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: 4px;
}

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

/* Dark mode */
[data-theme="dark"] .skeleton-box {
  --skeleton-base: #374151;
  --skeleton-shine: #4b5563;
}

/* Skeleton element variants */
.skeleton-checkbox {
  width: 18px;
  height: 18px;
  border-radius: 4px;
}

.skeleton-header {
  height: 14px;
  max-width: 120px;
}

.skeleton-cell {
  height: 16px;
}

.skeleton-cell.skeleton-primary {
  height: 18px;
}

.skeleton-button {
  width: 24px;
  height: 24px;
  border-radius: 4px;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
}

.skeleton-text {
  height: 16px;
}

.skeleton-text-sm {
  height: 12px;
  margin-top: 6px;
}

.skeleton-badge {
  width: 60px;
  height: 22px;
  border-radius: 11px;
}

.skeleton-date {
  width: 80px;
  height: 14px;
}

.skeleton-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}

.skeleton-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: 8px;
}

/* Table skeleton */
.skeleton-table .dv-table {
  opacity: 1;
}

.skeleton-table .skeleton-row td {
  padding: 0.75rem;
}

.skeleton-actions {
  display: flex;
  gap: 0.5rem;
}

/* Card skeleton */
.skeleton-cards .dv-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.skeleton-card {
  background: var(--content-bg, white);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 8px;
  padding: 1rem;
}

.skeleton-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.skeleton-card-title {
  flex: 1;
}

.skeleton-card-body {
  margin-bottom: 1rem;
}

.skeleton-card-body .skeleton-box + .skeleton-box {
  margin-top: 0.5rem;
}

.skeleton-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* List skeleton */
.skeleton-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skeleton-list-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--content-bg, white);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 8px;
}

.skeleton-list-content {
  flex: 1;
}

/* Kanban skeleton */
.skeleton-kanban .dv-kanban-board {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 1rem;
}

.skeleton-kanban-column {
  min-width: 280px;
  background: var(--hover-bg, #f9fafb);
  border-radius: 8px;
  padding: 1rem;
}

.skeleton-kanban-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.skeleton-count {
  width: 24px;
  height: 24px;
  border-radius: 12px;
}

.skeleton-kanban-cards {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skeleton-kanban-card {
  background: var(--content-bg, white);
  border-radius: 6px;
  padding: 0.75rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Calendar skeleton */
.skeleton-calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.skeleton-calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.skeleton-weekday {
  height: 24px;
  border-radius: 4px;
}

.skeleton-calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
}

.skeleton-calendar-day {
  aspect-ratio: 1;
  background: var(--hover-bg, #f9fafb);
  border-radius: 6px;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.skeleton-day-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.skeleton-event {
  height: 16px;
  border-radius: 4px;
}

/* Gallery skeleton */
.skeleton-gallery .dv-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.skeleton-gallery-item {
  background: var(--content-bg, white);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 8px;
  overflow: hidden;
}

.skeleton-gallery-caption {
  padding: 0.75rem;
}

/* Dashboard/widget skeleton */
.skeleton-widget-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.skeleton-widget {
  background: var(--content-bg, white);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 8px;
  padding: 1rem;
}

.skeleton-widget-wide {
  grid-column: span 2;
}

.skeleton-widget-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.skeleton-widget-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
}

.skeleton-widget-row + .skeleton-widget-row {
  border-top: 1px solid var(--border-color, #e5e7eb);
}

/* Generic skeleton */
.skeleton-generic {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  min-height: 200px;
}

.skeleton-generic-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.skeleton-generic-text {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skeleton-message {
  margin-top: 1rem;
  color: var(--content-text-secondary, #6b7280);
  font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
  .skeleton-widget-wide {
    grid-column: span 1;
  }
  
  .skeleton-kanban-column {
    min-width: 260px;
  }
}