/**
 * Universal Shop — category page styles (Stage F2).
 *
 * Bootstrap 5 utilities/components handle layout and spacing wherever they
 * already cover the need (row/col grid, .pagination, .btn, .form-select);
 * custom rules below are only for what Bootstrap has no primitive for
 * (product card, price block, layout switch icons).
 */

/* ---- Category header --------------------------------------------------- */

.us-category-image img {
  max-width: 100%;
  border-radius: var(--us-radius);
  margin-bottom: 1rem;
}

.us-category-title {
  margin-bottom: 0.75rem;
}

.us-category-description {
  margin-bottom: 1.5rem;
}

/* ---- Subcategory tiles -------------------------------------------------- */

.us-category-tiles {
  margin-bottom: 1.5rem;
}

.us-category-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  padding: 0.75rem;
  text-align: center;
  text-decoration: none;
  color: inherit;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--us-radius);
  transition: box-shadow 0.15s ease-in-out;
}

.us-category-tile:hover {
  box-shadow: 0 0 0 2px var(--us-accent);
}

.us-category-tile-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--us-radius);
  background-size: cover;
  background-position: center;
  background-color: rgba(0, 0, 0, 0.05);
}

.us-category-tile-image--placeholder {
  background-image: none;
}

.us-category-tile-title {
  font-weight: 600;
}

/* ---- List toolbar -------------------------------------------------------- */

.us-list-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.us-list-toolbar-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.us-list-toolbar-form {
  margin: 0;
}

.us-layout-switch {
  display: inline-flex;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: var(--us-radius);
  overflow: hidden;
}

.us-layout-switch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  color: inherit;
  text-decoration: none;
  background: transparent;
}

.us-layout-switch-btn.active,
.us-layout-switch-btn:hover {
  background: var(--us-accent);
  color: #fff;
}

.us-layout-switch-icon {
  display: block;
  width: 1rem;
  height: 1rem;
  border: 2px solid currentColor;
  border-radius: 2px;
}

.us-layout-switch-btn--list .us-layout-switch-icon {
  border-width: 2px 0;
  box-shadow: 0 4px 0 0 currentColor, 0 8px 0 0 currentColor;
  border-radius: 0;
  height: 0.5rem;
}

/* ---- Product list / cards ------------------------------------------------ */

.us-products {
  display: flex;
  flex-wrap: wrap;
  gap: var(--us-card-gap);
  margin-bottom: 1.5rem;
}

.us-products--grid .us-product-card {
  flex: 0 0 calc(50% - var(--us-card-gap) / 2);
}

@media (min-width: 768px) {
  .us-products--grid .us-product-card {
    flex-basis: calc(33.333% - var(--us-card-gap) * 2 / 3);
  }
}

@media (min-width: 992px) {
  .us-products--grid .us-product-card {
    flex-basis: calc(25% - var(--us-card-gap) * 3 / 4);
  }
}

.us-products--grid .us-product-card {
  display: flex;
  flex-direction: column;
}

.us-products--list .us-product-card {
  flex: 0 0 100%;
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 1rem;
}

.us-products--list .us-product-card-media {
  flex: 0 0 auto;
  width: 8rem;
}

.us-product-card {
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--us-radius);
  padding: 0.75rem;
  background: var(--bs-body-bg, #fff);
}

.us-product-card--oos {
  opacity: 0.65;
}

.us-product-card-media {
  position: relative;
}

.us-product-card-image-link {
  display: block;
}

.us-product-card-image {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--us-radius);
  background-color: rgba(0, 0, 0, 0.05);
}

.us-product-card-image--placeholder {
  aspect-ratio: 1 / 1;
}

.us-product-card-badge {
  position: absolute;
  top: 0.375rem;
  left: 0.375rem;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--us-radius);
  color: #fff;
}

.us-product-card-badge--discount {
  background: var(--us-discount-color);
}

.us-product-card-badge--oos {
  background: rgba(0, 0, 0, 0.55);
}

.us-product-card-title {
  font-size: 0.95rem;
  margin: 0.5rem 0 0.375rem;
}

.us-product-card-title a {
  color: inherit;
  text-decoration: none;
}

.us-product-card-title a:hover {
  text-decoration: underline;
}

/* ---- Price block (shared, Stage F2 §4) ----------------------------------- */

.us-price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.us-price-current {
  font-weight: 700;
  color: var(--us-price-color);
}

.us-price-compare {
  color: #6c757d;
  text-decoration: line-through;
}

.us-price-unit {
  color: #6c757d;
  font-size: 0.85rem;
}

/* ---- Pagination / load more ------------------------------------------------ */

.us-pagination {
  margin-top: 1rem;
}

.us-load-more {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

.us-load-more .btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

.us-products-sentinel {
  width: 100%;
  height: 1px;
}

/* ---- Empty state ------------------------------------------------------------ */

.us-empty-state {
  padding: 2rem 1rem;
  text-align: center;
  color: #6c757d;
}