/* ============================================================
   SayPaper — pages/product.css
   Product detail page styles
   ============================================================ */


/* ── Product Page Wrapper ─────────────────────────────────── */
.product-page {
  padding: 48px 0 80px;
  background: var(--color-bg);
}


/* ── Product Layout ───────────────────────────────────────── */
.product-layout {
  display: grid;
  grid-template-columns: 55fr 45fr;
  gap: 64px;
  align-items: start;
}


/* ── Gallery ──────────────────────────────────────────────── */
.product-gallery {
  position: sticky;
  top: 100px;
}

.gallery-main {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  position: relative;
  cursor: zoom-in;
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.gallery-main:hover img {
  transform: scale(1.04);
}

.gallery-main-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gallery-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  padding-bottom: 4px;
}

.gallery-thumbs::-webkit-scrollbar {
  height: 3px;
}

.gallery-thumbs::-webkit-scrollbar-track {
  background: transparent;
}

.gallery-thumbs::-webkit-scrollbar-thumb {
  background: var(--color-border);
}

.thumb {
  aspect-ratio: 1;
  width: 72px;
  min-width: 72px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: border-color var(--transition-base);
  background: var(--color-bg);
  flex-shrink: 0;
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.thumb:hover {
  border-color: var(--color-gold);
}

.thumb:hover img {
  transform: scale(1.06);
}

.thumb.active {
  border-color: var(--color-primary);
}


/* ── Product Detail ───────────────────────────────────────── */
.product-detail {
  padding-top: 8px;
}

.product-detail .breadcrumb {
  margin-bottom: 1.5rem;
}

.product-detail-category,
.product-category-kicker {
  font-family: var(--font-label);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.5rem;
  display: block;
}

.product-detail-name,
.product-name {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.product-detail-rating {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1.25rem;
}

.product-rating-stars {
  display: flex;
  gap: 2px;
  color: var(--color-gold);
  font-size: 14px;
}

.product-rating-count {
  font-family: var(--font-label);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.product-detail-price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.product-price-current {
  font-family: var(--font-label);
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.product-price-original {
  font-family: var(--font-label);
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  text-decoration: line-through;
}

.product-price-unit {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-muted);
  font-style: italic;
}

.product-detail-description,
.product-short-desc {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-muted);
  line-height: 1.75;
  margin-bottom: 1.5rem;
  max-width: none;
}

.product-detail-description p + p {
  margin-top: 0.875em;
}


/* ── Product Options ──────────────────────────────────────── */
.product-options {
  margin-bottom: 1.5rem;
}

.product-option-group {
  margin-bottom: 1.25rem;
}

.product-option-label {
  font-family: var(--font-label);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.product-option-label .option-selected {
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  font-style: italic;
  color: var(--color-muted);
  font-size: 0.88rem;
}

.product-option-swatches {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.product-swatch {
  width: 32px;
  height: 32px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color var(--transition-base);
  position: relative;
}

.product-swatch:hover {
  border-color: var(--color-gold);
}

.product-swatch.active {
  border-color: var(--color-primary);
}

.product-swatch-inner {
  width: 100%;
  height: 100%;
  border: 1px solid var(--color-border);
}

.product-option-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.product-chip {
  font-family: var(--font-label);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 7px 14px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition-base), color var(--transition-base), background var(--transition-base);
}

.product-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.product-chip.active {
  background: var(--color-primary);
  color: #F7F3EC;
  border-color: var(--color-primary);
}

.product-chip.out-of-stock {
  opacity: 0.4;
  cursor: not-allowed;
  text-decoration: line-through;
}


/* ── Product Actions ──────────────────────────────────────── */
.product-qty-row {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.product-qty-row .qty-selector {
  flex-shrink: 0;
}

.product-add-to-cart {
  flex: 1;
  min-width: 180px;
}

.product-wishlist-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
  color: var(--color-muted);
  font-size: 18px;
  transition: border-color var(--transition-base), color var(--transition-base);
  flex-shrink: 0;
}

.product-wishlist-btn:hover,
.product-wishlist-btn.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.product-actions-secondary {
  margin-top: 12px;
  padding-top: 16px;
}

.product-share-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.product-share-label {
  font-family: var(--font-label);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.product-share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
  color: var(--color-muted);
  font-size: 13px;
  transition: border-color var(--transition-base), color var(--transition-base);
  text-decoration: none;
}

.product-share-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}


/* ── Product Meta ─────────────────────────────────────────── */
.product-meta {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.product-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 8px;
}

.product-meta-icon {
  font-size: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.product-meta-text {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-muted);
  line-height: 1.5;
  max-width: none;
}

.product-meta-text strong {
  color: var(--color-text);
  font-weight: 500;
}

.product-sku {
  font-family: var(--font-label);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 16px;
}


/* ── Product Tabs ─────────────────────────────────────────── */
.product-tabs {
  margin-top: 48px;
  border-top: 1px solid var(--color-border);
  padding-top: 0;
}

.product-tabs .tab-list {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.product-tabs .tab-btn {
  font-size: 0.68rem;
  padding: 14px 20px;
}


/* ── Related Products ─────────────────────────────────────── */
.related-products {
  margin-top: 64px;
  padding-top: 64px;
  border-top: 1px solid var(--color-border);
}

.related-products .section-heading {
  margin-bottom: 36px;
}

.related-products .products-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}


/* ── Product Reviews ──────────────────────────────────────── */
.product-reviews {
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}

.reviews-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.reviews-summary {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
  padding: 24px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.reviews-avg-score {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--color-primary);
  line-height: 1;
}

.reviews-avg-details {
  flex: 1;
  min-width: 140px;
}

.reviews-avg-stars {
  display: flex;
  gap: 3px;
  color: var(--color-gold);
  margin-bottom: 4px;
}

.reviews-count {
  font-family: var(--font-label);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.reviews-distribution {
  flex: 2;
  min-width: 200px;
}

.review-bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.review-bar-label {
  font-family: var(--font-label);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  width: 40px;
  text-align: right;
  flex-shrink: 0;
}

.review-bar-track {
  flex: 1;
  height: 4px;
  background: var(--color-border);
}

.review-bar-fill {
  height: 100%;
  background: var(--color-gold);
}

.review-bar-count {
  font-family: var(--font-label);
  font-size: 0.6rem;
  color: var(--color-muted);
  width: 20px;
  flex-shrink: 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

.review-write {
  margin-top: 36px;
  padding: 28px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.review-write h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.review-stars-select {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}

.review-star-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 22px;
  color: var(--color-border);
  transition: color var(--transition-base);
  padding: 0;
  line-height: 1;
}

.review-star-btn:hover,
.review-star-btn.active {
  color: var(--color-gold);
}


/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1200px) {
  .product-layout {
    gap: 48px;
  }

  .related-products .products-grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .product-layout {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .product-gallery {
    position: static;
  }

  .related-products .products-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .product-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-page {
    padding: 32px 0 56px;
  }

  .reviews-grid {
    grid-template-columns: 1fr;
  }

  .product-qty-row {
    flex-wrap: wrap;
  }

  .product-add-to-cart {
    width: 100%;
  }

  .reviews-summary {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 576px) {
  .gallery-thumbs {
    gap: 8px;
  }

  .thumb {
    width: 60px;
    min-width: 60px;
  }

  .product-detail-name {
    font-size: 1.65rem;
  }

  .related-products .products-grid-4 {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .related-products {
    margin-top: 40px;
    padding-top: 40px;
  }

  .product-reviews {
    margin-top: 40px;
    padding-top: 40px;
  }
}


/* ── Product detail — actual product.php markup ─────────────── */
.product-category-kicker a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

.product-category-kicker a:hover {
  color: var(--color-primary);
}

/* Standalone price (no .product-detail-price wrapper in markup) */
.product-price {
  font-family: var(--font-label);
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

/* Specification list */
.product-features {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  display: grid;
  gap: 11px;
}

.product-feature-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.feature-label {
  font-family: var(--font-label);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  flex-shrink: 0;
}

.feature-value {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--color-text);
  text-align: right;
}

/* Add-to-cart row: keep qty selector and button on one line */
.product-qty-row .btn-full {
  flex: 1;
  width: auto;
  min-width: 200px;
}

/* Trust badges under the buy box */
.product-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.product-trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-label);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.product-trust i {
  color: var(--color-gold);
  font-size: 16px;
}

/* Tabs spacing on the detail page */
.product-tabs {
  margin-top: 64px;
}