/** ============================================================
    COMPONENT: Product Detail Page (PDP)
    Source: home.css, details.css
    ============================================================ */

/* --- Product page layout --- */
article.product_page {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--content-pad);
  padding-block: 1.75rem 3rem;
}

.pdp-breadcrumb-nav .breadcrumb {
  font-size: 0.8rem;
  gap: 0.25rem;
  background: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.pdp-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr) 280px;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
  margin-bottom: 2rem;
}

.pdp-col-actions {
  min-width: 0;
}

.pdp-gallery-sticky {
  position: sticky;
  top: calc(59px + 1rem);
}

.pdp-gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  background: hsl(0 0% 100% / 0.92);
  border: 1px solid var(--border-default);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 4;
  color: var(--ink-700);
  font-size: 0.9rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition:
    opacity       var(--duration-fast) var(--ease-out),
    background    var(--duration-fast) var(--ease-out),
    box-shadow    var(--duration-fast) var(--ease-out),
    border-color  var(--duration-fast) var(--ease-out);
}

.pdp-img-counter {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  background: hsl(245 60% 12% / 0.55);
  color: var(--surface-page);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  line-height: 1.6;
  z-index: 3;
  pointer-events: none;
}

.pdp-thumbs {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  justify-content: center;
}

.product_main hr {
  border-color: var(--border-default);
  opacity: 1;
  margin-block: 1rem;
}

.cart-wrapper {
  background: var(--surface-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 1rem 1.125rem;
  margin-top: 0.75rem;
}

.product-tabs-container {
  margin-top: 3rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  overflow: hidden;
}

.spec-row.highlight-row {
  background: var(--clr-primary-light);
  border-left: 3px solid var(--clr-primary);
}

.sub-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink-900);
  text-align: center;
}

.pdp-staff-edit {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-400);
  text-decoration: none;
  margin-bottom: 0.625rem;
  transition: color var(--duration-fast) var(--ease-out);
}

.pdp-divider {
  border: none;
  border-top: 1px solid var(--border-default);
  margin-block: 1rem;
}

.pdp-variants {
  margin-bottom: 1.25rem;
}

.variant-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-sm);
  background: var(--surface-card);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink-700);
  cursor: pointer;
  transition:
    border-color  var(--duration-fast) var(--ease-out),
    background    var(--duration-fast) var(--ease-out),
    color         var(--duration-fast) var(--ease-out),
    box-shadow    var(--duration-fast) var(--ease-out);
  text-decoration: none;
}

.pdp-atc-row {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
}

.pdp-price-block {
  margin-block: 0.625rem 1rem;
}

.rvp-section {
  margin-top: 3rem;
  margin-bottom: 2rem;
}

@media (max-width: 1199px) {
  .rvp-grid { grid-template-columns: repeat(5, 1fr); }
  .pdp-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .pdp-col-actions { grid-column: 1 / -1; }
}
@media (max-width: 991px)  { .rvp-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 900px)  {
  .pdp-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .pdp-col-actions { grid-column: auto; }
  .pdp-gallery-sticky { position: static; }
  .pdp-gallery-main { aspect-ratio: 4 / 3; }
}
@media (max-width: 767px)  { .rvp-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px)  { .rvp-grid { grid-template-columns: repeat(2, 1fr); } }

/* --- Specs table --- */
.specs-table-container {
  background: var(--surface-card);
  border-radius: var(--radius-lg);
  padding: 0;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  border: 1px solid var(--border-default);
}

.specs-modern-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

.spec-row {
  border-bottom: 1px solid var(--border-default);
  transition: background-color var(--duration-fast) var(--ease-out);
}
.spec-row:last-child { border-bottom: none; }
.spec-row:hover { background-color: var(--purple-50); }
.spec-row.highlight-row {
  background: var(--purple-100);
  border-left: 3px solid var(--clr-primary);
}

.spec-label-cell {
  padding: 8px 14px;
  text-align: left;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-600);
  width: 35%;
  background-color: var(--surface-subtle);
  border-right: 1px solid var(--border-default);
}
.spec-label-cell .spec-icon {
  color: var(--clr-primary);
  margin-right: 7px;
  width: 16px;
  text-align: center;
  font-size: 0.75rem;
}

.spec-value-cell {
  padding: 8px 14px;
  font-size: 0.8125rem;
  color: var(--ink-900);
  background-color: var(--surface-card);
}

.price-highlight-table {
  font-weight: 700;
  color: var(--clr-primary);
  font-size: 1.1rem;
}
.original-price-table {
  text-decoration: line-through;
  color: var(--ink-400);
  font-size: 0.9rem;
}

/* --- Description --- */
.description-modern-container {
  background: var(--surface-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-default);
}
.description-modern-content {
  color: var(--ink-600);
  line-height: 1.8;
  font-size: 1rem;
}
.description-modern-content p { margin-bottom: 1rem; }

.empty-state-modern {
  text-align: center;
  padding: 40px 20px;
  color: var(--ink-400);
}
.empty-state-modern i {
  font-size: 3rem;
  margin-bottom: 15px;
  color: var(--ink-200);
}

/* --- Reviews --- */
.reviews-section {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
  background: var(--surface-card);
  border-radius: var(--radius-lg);
  padding: 25px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-default);
}
.reviews-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.reviews-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink-900);
}
.review-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.reviews-empty {
  text-align: center;
  padding: 2rem;
  background: var(--surface-subtle);
  border-radius: var(--radius-md);
  border: 1px dashed var(--border-strong);
}
.muted { color: var(--ink-400); margin-bottom: 1rem; }

/* --- Tabs --- */
.tab-headers { gap: 30px; cursor: pointer; }
.tab-item {
  padding: 10px 5px;
  font-weight: 700;
  color: var(--ink-400);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}
.tab-item.active { color: var(--clr-primary); }

.tab-pane-custom { display: none; }
.tab-pane-custom.active { display: block; animation: fadeIn 0.4s; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- PDP buttons --- */
#mini-add-to-cart .btn-primary,
.btn-notify-custom {
  height: 46px !important;
  width: 100% !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  text-transform: uppercase;
  border-radius: var(--radius-md) !important;
  padding: 0 20px !important;
  margin: 0 !important;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  transition: all var(--duration-fast) var(--ease-out);
  background: var(--clr-primary);
  color: #fff;
}
#mini-add-to-cart .btn-primary:hover,
.btn-notify-custom:hover {
  background: var(--clr-primary-dark);
  box-shadow: var(--shadow-glow);
}

.btn-wishlist-icon-box {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--ink-400);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-spring);
  padding: 0;
  text-decoration: none;
  flex-shrink: 0;
}
.btn-wishlist-icon-box i { font-size: 1.1rem; }
.btn-wishlist-icon-box:hover {
  border-color: hsl(336 72% 80%);
  background-color: hsl(336 72% 97%);
  color: var(--clr-pink);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.btn-wishlist-icon-box.active {
  border-color: hsl(336 72% 80%);
  background-color: hsl(336 72% 97%);
  color: var(--clr-pink);
}

/* --- Gallery --- */

.thumbnail-wrapper {
  display: flex;
  transition: transform var(--duration-base) var(--ease-out);
}
.thumbnail-wrapper img {
  width: 75px;
  height: 75px;
  object-fit: cover;
  cursor: pointer;
  border: 2px solid var(--border-default);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}
.thumbnail-wrapper img.active { border-color: var(--clr-primary); }

/* --- Variants --- */

.variant-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.variant-anchor.active 
.variant-anchor:hover 

.variant-label {
  font-size: 10px;
  text-align: center;
  font-weight: 700;
  color: var(--ink-400);
  padding: 2px;
}

.hidden { display: none; }