/* ============================================
   PRODUCT DETAIL PAGE — Q Fashion
   CSS specific to single-qf_product.php
   ============================================ */

/* ===== BREADCRUMB ===== */
.breadcrumb {
  padding: 16px 0; border-bottom: 1px solid var(--gray-200);
  font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-500);
}
.breadcrumb a { color: var(--gray-500); transition: color 0.3s; }
.breadcrumb a:hover { color: var(--green); }
.breadcrumb span { color: var(--black); }

/* ===== PRODUCT DETAIL ===== */
.product-detail { padding: 48px 0 80px; }
.product-detail__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }

/* Gallery */
.gallery__main {
  position: relative; aspect-ratio: 3/4; overflow: hidden; border-radius: 4px; background: var(--gray-100);
  margin-bottom: 12px; cursor: zoom-in;
}
.gallery__main img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform 0.5s; }
.gallery__main:hover img { transform: scale(1.08); }
.gallery__badge {
  position: absolute; top: 16px; left: 16px; padding: 6px 14px;
  background: var(--green); color: var(--white);
  font-size: 0.65rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; border-radius: 2px; z-index: 2;
}
.gallery__thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.gallery__thumb {
  aspect-ratio: 1; overflow: hidden; border-radius: 3px; cursor: pointer;
  border: 2px solid transparent; transition: border-color 0.3s; background: var(--gray-100);
}
.gallery__thumb.active { border-color: var(--green); }
.gallery__thumb:hover { border-color: var(--gray-300); }
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top; }

/* Product Info */
.product-info__category {
  font-size: 0.68rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--green); margin-bottom: 8px;
}
.product-info__title {
  font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 400; line-height: 1.2; margin-bottom: 16px;
}
.product-info__price {
  display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px;
  padding-bottom: 20px; border-bottom: 1px solid var(--gray-200);
}
.product-info__price .current { font-size: 1.5rem; font-weight: 600; color: var(--black); }
.product-info__price .original { font-size: 1.1rem; text-decoration: line-through; color: var(--gray-500); }
.product-info__price .discount {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  background: var(--orange); color: var(--white); padding: 3px 8px; border-radius: 2px;
}

.product-info__rating { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
.product-info__stars { display: flex; gap: 2px; }
.product-info__stars svg { width: 16px; height: 16px; fill: var(--orange); }
.product-info__rating-text { font-size: 0.82rem; color: var(--gray-500); }

.product-info__desc { font-size: 0.92rem; color: var(--gray-700); line-height: 1.8; margin-bottom: 28px; }

/* Selectors */
.selector { margin-bottom: 24px; }
.selector__label {
  font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 500; margin-bottom: 10px;
  display: flex; align-items: center; gap: 8px;
}
.selector__label span { color: var(--gray-500); font-weight: 400; text-transform: none; letter-spacing: 0; }

/* Color selector */
.color-options { display: flex; gap: 10px; }
.color-opt {
  width: 36px; height: 36px; border-radius: 50%; border: 2px solid var(--gray-200); cursor: pointer; transition: all 0.3s;
  position: relative;
}
.color-opt:hover { transform: scale(1.1); }
.color-opt.active { border-color: var(--green); box-shadow: 0 0 0 2px var(--green); }
.color-opt__tooltip {
  position: absolute; bottom: -24px; left: 50%; transform: translateX(-50%);
  font-size: 0.6rem; white-space: nowrap; color: var(--gray-500);
  opacity: 0; transition: opacity 0.3s;
}
.color-opt:hover .color-opt__tooltip { opacity: 1; }

/* Size selector */
.size-options { display: flex; gap: 8px; }
.size-opt {
  width: 44px; height: 44px; border: 1px solid var(--gray-200); border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.05em; cursor: pointer;
  transition: all 0.3s; font-family: var(--font-body);
}
.size-opt:hover { border-color: var(--green); color: var(--green); }
.size-opt.active { background: var(--green); border-color: var(--green); color: var(--white); }
.size-opt.disabled { opacity: 0.3; cursor: not-allowed; }

/* Quantity */
.quantity { display: flex; align-items: center; gap: 0; border: 1px solid var(--gray-200); border-radius: 3px; overflow: hidden; width: fit-content; }
.quantity__btn {
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: var(--gray-700); transition: background 0.3s;
}
.quantity__btn:hover { background: var(--gray-100); }
.quantity__input {
  width: 56px; height: 44px; text-align: center; border: none; border-left: 1px solid var(--gray-200); border-right: 1px solid var(--gray-200);
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 500;
}

/* Actions */
.product-actions { display: flex; gap: 12px; margin-top: 28px; }

/* Meta */
.product-meta { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--gray-200); }
.product-meta__item { display: flex; gap: 8px; margin-bottom: 8px; font-size: 0.82rem; }
.product-meta__label { color: var(--gray-500); min-width: 100px; }
.product-meta__value { color: var(--black); }
.product-meta__value a { color: var(--green); transition: color 0.3s; }
.product-meta__value a:hover { color: var(--orange); }

/* Guarantees */
.guarantees { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; }
.guarantee {
  display: flex; align-items: center; gap: 10px; padding: 14px; background: var(--cream); border-radius: 4px;
}
.guarantee__icon { color: var(--green); flex-shrink: 0; }
.guarantee__icon svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.5; }
.guarantee__text { font-size: 0.75rem; line-height: 1.4; }
.guarantee__text strong { display: block; font-size: 0.72rem; letter-spacing: 0.05em; }

/* ===== TABS ===== */
.product-tabs { padding: 0 0 80px; }
.tabs__nav { display: flex; gap: 0; border-bottom: 2px solid var(--gray-200); margin-bottom: 32px; }
.tabs__btn {
  padding: 14px 28px; font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--gray-500); position: relative; transition: color 0.3s; font-family: var(--font-body);
}
.tabs__btn::after { content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 2px; background: var(--green); transform: scaleX(0); transition: transform 0.3s; }
.tabs__btn:hover { color: var(--black); }
.tabs__btn.active { color: var(--green); font-weight: 500; }
.tabs__btn.active::after { transform: scaleX(1); }
.tabs__content { display: none; animation: fadeIn 0.4s; }
.tabs__content.active { display: block; }
.tabs__content p { font-size: 0.9rem; color: var(--gray-700); line-height: 1.85; margin-bottom: 16px; max-width: 720px; }
.tabs__content h4 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: 12px; margin-top: 24px; }
.tabs__content ul { margin-left: 20px; list-style: disc; margin-bottom: 16px; }
.tabs__content ul li { font-size: 0.88rem; color: var(--gray-700); margin-bottom: 6px; line-height: 1.7; }

/* Size table */
.size-table { width: 100%; max-width: 600px; border-collapse: collapse; margin: 16px 0; }
.size-table th, .size-table td { padding: 10px 16px; text-align: center; border: 1px solid var(--gray-200); font-size: 0.82rem; }
.size-table th { background: var(--cream); font-weight: 600; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }
.size-table td { color: var(--gray-700); }

/* ===== RELATED PRODUCTS ===== */
.related { padding: 64px 0 80px; background: var(--cream); }
.related .section-header { text-align: center; margin-bottom: 40px; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ===== RESPONSIVE — PRODUCT DETAIL SPECIFIC ===== */
@media (max-width: 1024px) { .related-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) {
  .product-detail__grid { grid-template-columns: 1fr; gap: 32px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .guarantees { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .gallery__thumbs { grid-template-columns: repeat(4, 1fr); gap: 6px; }
  .product-actions { flex-direction: column; }
  .btn--primary { width: 100%; }
}