/* ────────────────────────────────────────────────
 * Skeleton screens
 * Source: extracted from index.css lines 9325–9472
 * ──────────────────────────────────────────────── */

/* Skeleton animation - shimmer effect */
@keyframes skeletonShimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* Base skeleton styles */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--overlay-light-03) 0%,
    var(--overlay-light-08) 50%,
    var(--overlay-light-03) 100%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: 4px;
}

/* Product card skeleton */
.catalogItem.skeleton-card {
  pointer-events: none;
}

.skeleton-card .skeleton-image {
  width: 100%;
  height: 200px;
  background: var(--overlay-light-05);
  margin-bottom: 16px;
}

.skeleton-card .skeleton-text {
  height: 14px;
  background: var(--overlay-light-05);
  margin-bottom: 8px;
}

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

.skeleton-card .skeleton-text.medium {
  width: 80%;
}

.skeleton-card .skeleton-title {
  height: 20px;
  background: var(--overlay-light-05);
  margin-bottom: 12px;
  width: 90%;
}

.skeleton-card .skeleton-price {
  height: 24px;
  background: var(--overlay-light-05);
  width: 40%;
  margin-top: 16px;
}

.skeleton-card .skeleton-button {
  height: 48px;
  background: var(--overlay-light-05);
  margin-top: 16px;
  width: 48px;
}

/* Skeleton row for price + button */
.skeleton-card .skeleton-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
}

/* Loading state for catalog grid */
.catalogGrid.is-loading .catalogItem:not(.skeleton-card) {
  opacity: 0.5;
  pointer-events: none;
}

/* Skeleton for filter sidebar */
.skeleton-filter {
  padding: 16px;
}

.skeleton-filter .skeleton-filter-title {
  height: 20px;
  width: 60%;
  background: var(--overlay-light-05);
  margin-bottom: 16px;
}

.skeleton-filter .skeleton-filter-item {
  height: 32px;
  background: var(--overlay-light-03);
  margin-bottom: 8px;
  border-radius: 4px;
}

/* Pulse animation alternative */
@keyframes skeletonPulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 0.8;
  }
}

.skeleton-pulse {
  animation: skeletonPulse 1.5s ease-in-out infinite;
}

/* Hide skeleton when content loaded */
.skeleton-card.loaded {
  display: none;
}

/* Skeleton grid layout - matches catalogGrid */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  width: 100%;
}

@media (max-width: 74.9375em) {
  .skeleton-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 48em) {
  .skeleton-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 30em) {
  .skeleton-grid {
    grid-template-columns: 1fr;
  }
}