/* ============================================================
   Product Page  (/san-pham)
   ============================================================ */

/* ── Breadcrumb ── */
.product-page__breadcrumb {
  padding: 0.75rem 0 0;
}

.product-page__breadcrumb .breadcrumb {
  background: transparent;
  padding: 0;
  margin: 0;
  font-size: 0.85rem;
  gap: 0.25rem;
}

.product-page__breadcrumb .breadcrumb-item a {
  color: var(--cdt-primary);
  text-decoration: none;
}

.product-page__breadcrumb .breadcrumb-item.active {
  color: var(--cdt-muted);
}

.product-page__breadcrumb .breadcrumb-item + .breadcrumb-item::before {
  content: "›";
  color: var(--cdt-muted);
}

/* ── Page header ── */
.product-page__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1.25rem 0 1.5rem;
  border-bottom: 2px solid var(--cdt-primary-soft);
}

.product-page__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--cdt-text);
  margin: 0 0 0.2rem;
}

.product-page__subtitle {
  font-size: 0.875rem;
  color: var(--cdt-muted);
  margin: 0;
}

/* ── Layout: sidebar + content ── */
.product-page__body {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 2rem;
  align-items: start;
  padding: 1.75rem 0 3rem;
}

@media (max-width: 991.98px) {
  .product-page__body {
    grid-template-columns: 1fr;
  }
  .product-page__sidebar {
    display: none;
  }
}

/* ── Category sidebar ── */
.cat-panel {
  background: var(--cdt-surface);
  border-radius: 1rem;
  border: 1px solid var(--cdt-border);
  overflow: hidden;
  position: sticky;
  top: 5rem;
}

.cat-panel__title {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cdt-muted);
  padding: 1rem 1.25rem 0.5rem;
  margin: 0;
  border-bottom: 1px solid var(--cdt-border);
}

.cat-panel__list {
  list-style: none;
  padding: 0.5rem 0;
  margin: 0;
}

.cat-panel__item {
  margin: 0;
}

.cat-panel__link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1.25rem;
  font-size: 0.875rem;
  color: var(--cdt-text);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
  border-left: 3px solid transparent;
}

.cat-panel__link:hover {
  background: var(--cdt-primary-soft);
  color: var(--cdt-primary-dark);
  border-left-color: var(--cdt-primary);
}

.cat-panel__item.is-active > .cat-panel__link {
  background: var(--cdt-primary-soft);
  color: var(--cdt-primary-dark);
  font-weight: 700;
  border-left-color: var(--cdt-primary);
}

.cat-panel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.35;
  flex-shrink: 0;
}

.cat-panel__item.is-active > .cat-panel__link .cat-panel__dot {
  opacity: 1;
}

/* ── Category hierarchy ── */
.cat-panel__parent-row {
  display: flex;
  align-items: stretch;
}

.cat-panel__parent-row .cat-panel__link--parent {
  flex: 1;
  min-width: 0;
}

.cat-panel__toggle {
  background: none;
  border: none;
  padding: 0 0.9rem 0 0.25rem;
  cursor: pointer;
  color: var(--cdt-muted);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: color 0.15s;
}

.cat-panel__toggle:hover {
  color: var(--cdt-primary-dark);
}

.cat-panel__arrow {
  display: block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform 0.2s ease;
  transform: rotate(-90deg);
}

.cat-panel__item--parent.is-expanded > .cat-panel__parent-row .cat-panel__arrow {
  transform: rotate(0deg);
}

.cat-panel__item--parent.is-active > .cat-panel__parent-row .cat-panel__link--parent,
.cat-panel__item--parent.is-active > .cat-panel__parent-row .cat-panel__toggle {
  background: var(--cdt-primary-soft);
  color: var(--cdt-primary-dark);
}

.cat-panel__item--parent.is-active > .cat-panel__parent-row .cat-panel__link--parent {
  font-weight: 700;
  border-left-color: var(--cdt-primary);
}

.cat-panel__children {
  list-style: none;
  padding: 0;
  margin: 0;
  display: none;
  background: var(--cdt-surface);
}

.cat-panel__item--parent.is-expanded > .cat-panel__children {
  display: block;
}

.cat-panel__link--child {
  padding-left: 2.25rem;
  font-size: 0.825rem;
}

.cat-panel__item--child.is-active .cat-panel__link--child {
  background: var(--cdt-primary-soft);
  color: var(--cdt-primary-dark);
  font-weight: 600;
  border-left-color: var(--cdt-primary);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 1199.98px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767.98px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.875rem;
  }
}

@media (max-width: 479.98px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.625rem;
  }
}

/* ── Product card (pcard) ── */
.product-card-wrap {
  display: flex;
  min-width: 0;
}

.pcard {
  display: flex;
  flex-direction: column;
  width: 100%;
  background: var(--cdt-surface);
  border: 1px solid var(--cdt-border);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(16, 35, 60, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.pcard:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(16, 35, 60, 0.14);
}

.pcard__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.pcard__media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--cdt-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pcard__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.75rem;
  mix-blend-mode: multiply;
  transition: transform 0.4s ease;
}

.pcard:hover .pcard__img {
  transform: scale(1.06);
}

.pcard__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--cdt-primary-soft), #e2eaff);
  color: var(--cdt-primary-dark);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.pcard__badge {
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  z-index: 1;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  pointer-events: none;
}

.pcard__badge--hot {
  background: var(--cdt-primary);
  color: #fff;
}

.pcard__body {
  flex: 1;
  padding: 0.875rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pcard__category {
  font-size: 0.72rem;
  color: var(--cdt-muted);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pcard__name {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--cdt-text);
  margin: 0;
  flex: 1;
  min-height: 0;
  min-width: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
  max-height: calc(1.4em * 2);
}

.pcard__name a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.pcard:hover .pcard__name a {
  color: var(--cdt-primary);
}

.pcard__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 0.75rem;
  gap: 0.5rem;
}

.pcard__price {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--cdt-primary);
}

.pcard__add-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 2px solid var(--cdt-primary);
  background: transparent;
  color: var(--cdt-primary);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
  flex-shrink: 0;
}

.pcard__add-btn:hover {
  background: var(--cdt-primary);
  color: #fff;
  transform: scale(1.1);
}

.pcard__add-btn:active {
  transform: scale(0.95);
}

.pcard__add-btn.is-added {
  background: var(--cdt-primary);
  color: #fff;
  border-color: var(--cdt-primary);
}

/* ── Empty state ── */
.product-page__empty {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--cdt-muted);
}

.product-page__empty-icon {
  font-size: 3.5rem;
  margin-bottom: 0.75rem;
}

/* ── Pagination ── */
.product-page__pagination {
  margin-top: 2.5rem;
}

.product-page__pagination .page-link {
  color: var(--cdt-primary);
  border-color: var(--cdt-border);
}

.product-page__pagination .page-item.active .page-link {
  background: var(--cdt-primary);
  border-color: var(--cdt-primary);
  color: #fff;
}

.product-page__pagination .page-link:hover {
  background: var(--cdt-primary-soft);
  color: var(--cdt-primary-dark);
}