/* ===== PRODUCT PAGE ===== */
.product-layout {
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: 64px;
  padding: 40px 0 80px;
  align-items: start;
}

/* Gallery */
.product-gallery { position: sticky; top: calc(var(--nav-height) + 20px); }
.product-gallery-main {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--gray-100);
  margin-bottom: 12px;
  cursor: zoom-in;
}
.product-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.product-gallery-main:hover img { transform: scale(1.05); }
.product-gallery-main.zoomed { cursor: zoom-out; }
.product-gallery-main.zoomed img { transform: scale(1.8); transform-origin: var(--zoom-x, 50%) var(--zoom-y, 50%); }

.product-gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.product-gallery-thumb {
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--gray-100);
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s;
}
.product-gallery-thumb.active { border-color: var(--black); }
.product-gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* Badge strip */
.product-badges { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }

/* Product Info */
.product-info {}
.product-breadcrumb { margin-bottom: 12px; }
.product-name {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 16px;
}
.product-rating-row { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.product-reviews-link { font-size: 0.8rem; color: var(--gray-400); text-decoration: underline; cursor: pointer; }

.product-price-section { margin-bottom: 24px; }
.product-price-main { font-size: 1.6rem; font-weight: 600; display: flex; align-items: center; gap: 12px; }
.product-price-was { font-size: 1.1rem; color: var(--gray-400); text-decoration: line-through; }
.product-price-save { font-size: 0.8rem; background: #fef2f2; color: #c0392b; padding: 4px 10px; font-weight: 600; }
.product-tax-note { font-size: 0.75rem; color: var(--gray-400); margin-top: 4px; }

/* Divider */
.product-divider { height: 1px; background: var(--gray-200); margin: 24px 0; }

/* Variant selection */
.variant-group { margin-bottom: 20px; }
.variant-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.variant-selected { font-weight: 400; color: var(--gray-500); letter-spacing: 0; text-transform: none; }

/* Color swatches */
.color-swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.color-swatch {
  position: relative;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid transparent;
  transition: border-color 0.2s;
  box-shadow: 0 0 0 1px var(--gray-300);
}
.color-swatch.active { border-color: var(--black); box-shadow: 0 0 0 1px var(--black); }
.color-swatch[title]:hover::after {
  content: attr(title);
  position: absolute;
  bottom: -28px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--black);
  color: var(--white);
  padding: 3px 8px;
  font-size: 0.65rem;
  white-space: nowrap;
  pointer-events: none;
}

/* Size selection */
.size-options { display: flex; gap: 8px; flex-wrap: wrap; }
.size-btn {
  min-width: 48px;
  height: 48px;
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  padding: 0 12px;
  color: var(--black);
  background: none;
  position: relative;
}
.size-btn:hover { border-color: var(--black); }
.size-btn.active { background: var(--black); color: var(--white); border-color: var(--black); }
.size-btn.unavailable {
  opacity: 0.35;
  cursor: not-allowed;
  text-decoration: line-through;
}
.size-guide-link {
  font-size: 0.75rem;
  color: var(--gray-400);
  text-decoration: underline;
  cursor: pointer;
  margin-left: auto;
  transition: color 0.2s;
}
.size-guide-link:hover { color: var(--black); }

/* Add to cart */
.add-to-cart-section {
  margin-top: 24px;
}
.qty-row { display: flex; gap: 12px; margin-bottom: 12px; }
.qty-selector {
  display: flex;
  align-items: center;
  border: 1px solid var(--gray-200);
  height: 52px;
  min-width: 120px;
}
.qty-selector .qty-btn { width: 36px; height: 100%; font-size: 1.1rem; }
.qty-selector .qty-input { flex: 1; text-align: center; font-size: 0.95rem; font-weight: 500; border: none; outline: none; }
.add-to-cart-btn {
  flex: 1;
  height: 52px;
  background: var(--black);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  border: none;
  transition: background 0.2s;
  width: 100%;
}
.add-to-cart-btn:hover { background: var(--gray-800); }
.add-to-cart-btn svg { width: 18px; height: 18px; }
.add-to-cart-btn:disabled { background: var(--gray-300); cursor: not-allowed; }
.buy-now-btn {
  width: 100%;
  height: 52px;
  background: transparent;
  color: var(--black);
  border: 1px solid var(--black);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 10px;
}
.buy-now-btn:hover { background: var(--black); color: var(--white); }
.whatsapp-btn {
  width: 100%;
  height: 52px;
  background: #25D366;
  color: var(--white);
  border: none;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 10px;
  text-decoration: none;
}
.whatsapp-btn:hover {
  background: #128C7E;
  color: var(--white);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.2);
}
.whatsapp-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}
.wishlist-btn {
  width: 52px;
  height: 52px;
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
  background: none;
}
.wishlist-btn:hover { border-color: var(--black); color: var(--black); }
.wishlist-btn.active { background: #fef2f2; color: #e11d48; border-color: #fecdd3; }

/* Product features */
.product-features { margin-top: 24px; }
.product-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.85rem;
  color: var(--gray-600);
}
.product-feature:first-child { border-top: 1px solid var(--gray-100); }
.product-feature svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--black); }

/* Accordion */
.accordion { margin-top: 24px; }
.accordion-item { border-top: 1px solid var(--gray-200); }
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--black);
  user-select: none;
}
.accordion-icon { transition: transform 0.25s; }
.accordion-item.open .accordion-icon { transform: rotate(45deg); }
.accordion-body {
  display: none;
  padding-bottom: 20px;
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.7;
}
.accordion-body.open { display: block; }
.accordion-body ul { margin-top: 8px; display: flex; flex-direction: column; gap: 4px; }
.accordion-body ul li::before { content: '—  '; color: var(--gray-400); }

/* Sticky ATC bar */
.sticky-atc {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  padding: 12px var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 600;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
}
.sticky-atc.visible { transform: translateY(0); }
.sticky-atc-info { display: flex; align-items: center; gap: 16px; }
.sticky-atc-img { width: 48px; height: 64px; object-fit: cover; }
.sticky-atc-name { font-size: 0.9rem; font-weight: 500; }
.sticky-atc-price { font-size: 0.85rem; color: var(--gray-500); }
.sticky-atc-btn { min-width: 180px; height: 44px; }

/* ===== REVIEWS ===== */
.reviews-section { padding: 60px 0; border-top: 1px solid var(--gray-200); }
.reviews-summary { display: grid; grid-template-columns: auto 1fr; gap: 40px; align-items: center; margin-bottom: 40px; }
.reviews-score { text-align: center; }
.reviews-score-num { font-family: var(--font-serif); font-size: 4rem; font-weight: 400; line-height: 1; }
.reviews-score-stars { margin: 8px 0 4px; }
.reviews-score-count { font-size: 0.8rem; color: var(--gray-400); }
.reviews-bars { display: flex; flex-direction: column; gap: 8px; max-width: 300px; }
.review-bar-row { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; }
.review-bar-track { flex: 1; height: 6px; background: var(--gray-200); overflow: hidden; }
.review-bar-fill { height: 100%; background: var(--accent); }
.review-bar-count { color: var(--gray-400); width: 20px; text-align: right; }

.review-card { padding: 28px 0; border-bottom: 1px solid var(--gray-100); }
.review-card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 12px; }
.reviewer-info { display: flex; flex-direction: column; gap: 4px; }
.reviewer-name { font-size: 0.9rem; font-weight: 600; }
.review-date { font-size: 0.78rem; color: var(--gray-400); }
.review-verified { font-size: 0.7rem; color: #16a34a; font-weight: 500; display: flex; align-items: center; gap: 4px; }
.review-text { font-size: 0.88rem; color: var(--gray-600); line-height: 1.7; margin-top: 8px; }
.review-images { display: flex; gap: 8px; margin-top: 12px; }
.review-img { width: 64px; height: 64px; object-fit: cover; cursor: pointer; }

/* ===== RELATED PRODUCTS ===== */
.related-products { padding: 60px 0; background: var(--gray-50); }

/* ===== SIZE GUIDE MODAL ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal.active { display: flex; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(3px);
}
.modal-box {
  position: relative;
  background: var(--white);
  max-width: 600px;
  width: 100%;
  max-height: 85dvh;
  overflow-y: auto;
  padding: 40px;
  z-index: 1;
  animation: scaleIn 0.3s ease;
}
.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--gray-400);
}
.modal-close:hover { color: var(--black); }
.size-table { width: 100%; border-collapse: collapse; margin-top: 20px; font-size: 0.85rem; }
.size-table th, .size-table td { padding: 10px 14px; border: 1px solid var(--gray-200); text-align: left; }
.size-table th { background: var(--gray-50); font-weight: 600; font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* Quick View */
.quickview-modal .modal-box { max-width: 900px; padding: 0; overflow: hidden; }
.quickview-inner { display: grid; grid-template-columns: 1fr 1fr; }
.quickview-gallery { position: relative; aspect-ratio: 3/4; background: var(--gray-100); }
.quickview-gallery img { width: 100%; height: 100%; object-fit: cover; }
.quickview-info { padding: 40px; overflow-y: auto; max-height: 80dvh; }

@media (max-width: 1024px) {
  .product-layout { grid-template-columns: 1fr; gap: 32px; }
  .product-gallery { position: static; }
  .sticky-atc-info { display: none; }
  .quickview-inner { grid-template-columns: 1fr; }
  .quickview-gallery { aspect-ratio: 4/3; }
}
@media (max-width: 640px) {
  .product-gallery-thumbs { grid-template-columns: repeat(4, 1fr); }
  .qty-row { flex-direction: column; }
  .wishlist-btn { width: 100%; }
  .reviews-summary { grid-template-columns: 1fr; }
}