/* =========================================================================
   MRINGCO Single Product Page
   ========================================================================= */

.product-main {
  padding-bottom: 0;
}

/* =========================================================================
   Product Layout (2-column)
   ========================================================================= */

.product-layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-12);
  align-items: start;
  padding: var(--space-8) 0 var(--space-12);
}

/* =========================================================================
   Product Gallery
   ========================================================================= */

.product-gallery-col { position: sticky; top: calc(var(--header-total-height) + var(--space-4)); }

.product-gallery { display: flex; flex-direction: column; gap: var(--space-3); }

.product-gallery__main {
  position: relative;
  aspect-ratio: 1;
  background: var(--color-surface-1);
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: zoom-in;
}
.product-gallery__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-8);
  transition: opacity var(--duration-base) var(--ease-out);
}
.product-gallery__img.is-transitioning { opacity: 0; }

.product-gallery__zoom-link { display: block; width: 100%; height: 100%; }

.product-page-badge {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-3);
  z-index: var(--z-raised);
}

/* Thumbnails strip */
.product-gallery__thumbs {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  padding-bottom: var(--space-1);
}
.product-gallery__thumb {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-surface-1);
  padding: var(--space-1);
  transition: border-color var(--duration-fast);
}
.product-gallery__thumb:hover { border-color: var(--color-yellow-light); }
.product-gallery__thumb.is-active { border-color: var(--color-yellow); }
.product-gallery__thumb-img { width: 100%; height: 100%; object-fit: contain; }

/* =========================================================================
   Product Info
   ========================================================================= */

.product-info { display: flex; flex-direction: column; gap: var(--space-5); }

.product-info__category { margin-bottom: 0; }

.product-info__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.product-info__rating {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.product-info__review-count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.product-info__price {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-top: var(--border-thin);
  border-bottom: var(--border-thin);
}
.product-info__price .price {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 500;
  color: var(--color-yellow);
}
.product-info__price .price del {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  text-decoration: line-through;
}
.product-info__price .price ins {
  text-decoration: none;
  color: var(--color-yellow);
}
.product-info__save {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  background: var(--color-yellow);
  color: var(--color-black);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

.product-info__short-desc {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  line-height: 1.7;
}
.product-info__short-desc ul { list-style: none; padding: 0; }
.product-info__short-desc ul li {
  padding: var(--space-1) 0;
  padding-left: var(--space-5);
  position: relative;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}
.product-info__short-desc ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-yellow);
}

/* Meta */
.product-info__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.product-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
}
.product-meta-item__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  min-width: 80px;
  flex-shrink: 0;
}
.product-meta-item__value {
  font-family: var(--font-mono);
  color: var(--color-text-primary);
  background: none;
  padding: 0;
}
.stock-in  { color: var(--color-success); }
.stock-out { color: var(--color-error); }

/* Add to cart */
.product-info__add-to-cart {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}
.product-info__add-to-cart .quantity { flex-shrink: 0; }
.product-info__add-to-cart .btn { flex: 1; height: 52px; }

.product-info__out-of-stock {
  color: var(--color-error);
  font-family: var(--font-ui);
  font-weight: 600;
  padding: var(--space-4);
  background: rgba(231,76,60,0.1);
  border-left: 3px solid var(--color-error);
  border-radius: var(--radius-sm);
}

/* Trust badges */
.product-trust-badges {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-surface-2);
  border: var(--border-thin);
  border-radius: var(--radius-md);
}
.product-trust-badge {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}
.product-trust-badge svg { color: var(--color-yellow); flex-shrink: 0; }

/* =========================================================================
   Product Tabs
   ========================================================================= */

.product-tabs {
  border-top: var(--border-thin);
  padding-top: 0;
  margin-top: 0;
  padding-bottom: var(--space-16);
}
.product-tabs__nav { border-bottom: var(--border-thin); }
.product-tabs__panel { padding-top: var(--space-8); }

/* Description prose */
.product-description.prose { max-width: 800px; }
.product-description.prose h2,
.product-description.prose h3,
.product-description.prose h4 {
  font-size: var(--text-xl);
  margin: var(--space-6) 0 var(--space-3);
}
.product-description.prose p { margin-bottom: var(--space-4); }
.product-description.prose ul {
  list-style: none;
  padding: 0;
}
.product-description.prose ul li {
  padding: var(--space-2) 0;
  padding-left: var(--space-5);
  position: relative;
  border-bottom: 1px solid var(--color-border);
}
.product-description.prose ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-yellow);
  font-size: 0.9em;
}

/* Specs table */
.specs-table {
  max-width: 700px;
  font-size: var(--text-sm);
}
.specs-table th {
  width: 40%;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}
.specs-table td {
  font-family: var(--font-body);
  color: var(--color-text-secondary);
}
.specs-table tr:nth-child(odd) td,
.specs-table tr:nth-child(odd) th { background: var(--color-surface-2); }

/* WooCommerce reviews */
#reviews .comment-form { max-width: 600px; }
#reviews .commentlist { list-style: none; padding: 0; }
#reviews .comment {
  background: var(--color-surface-2);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}
#reviews .comment-text .description { color: var(--color-text-secondary); margin-top: var(--space-3); }
#reviews .woocommerce-review__author { color: var(--color-text-primary); font-weight: 600; }
#reviews .woocommerce-review__dash,
#reviews .woocommerce-review__published-date { color: var(--color-text-muted); font-size: var(--text-xs); }

/* =========================================================================
   Related Products
   ========================================================================= */

.product-related { border-top: var(--border-thin); }
.related-products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
}

/* =========================================================================
   Mobile Sticky Bar
   ========================================================================= */

.product-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface-1);
  border-top: var(--border-accent);
  z-index: var(--z-sticky);
  transform: translateY(100%);
  transition: transform var(--duration-base) var(--ease-out);
  padding: var(--space-3) 0;
}
.product-sticky-bar.is-visible { transform: translateY(0); }
.product-sticky-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.product-sticky-bar__info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
  min-width: 0;
}
.product-sticky-bar__title {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.product-sticky-bar__price .price {
  font-family: var(--font-mono);
  font-size: var(--text-md);
  color: var(--color-yellow);
}
.product-sticky-bar__btn {
  flex-shrink: 0;
  height: 44px;
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 1024px) {
  .product-layout { grid-template-columns: 1fr; gap: var(--space-8); }
  .product-gallery-col { position: static; }
  .related-products-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .product-info__add-to-cart { flex-direction: column; align-items: stretch; }
  .product-info__add-to-cart .quantity { justify-content: center; }
  .related-products-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
  .product-sticky-bar { bottom: var(--mobile-nav-height); }
}

@media (max-width: 480px) {
  .product-gallery__thumbs { gap: var(--space-1); }
  .product-gallery__thumb { width: 56px; height: 56px; }
}