/* Plumbix note: shared visual styling for product page. */
.product-page-main { padding-bottom: 48px; }
.product-loading {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-light);
}
.product-loading i { font-size: 2.5rem; color: var(--primary); margin-bottom: 16px; }
.product-detail { display: flex; gap: 44px; margin: 22px 0 54px; flex-wrap: wrap; align-items: flex-start; }
.product-gallery { flex: 1; min-width: 320px; max-width: 620px; }
.product-image-main {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  border: 1px solid var(--gray-border);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-image-main img { max-width: 100%; max-height: 280px; object-fit: contain; }
.product-image-main i { font-size: 120px; color: var(--primary); }
.product-image-main i.hidden { display: none !important; }
.product-info-panel { flex: 1; min-width: 360px; }
.product-title { font-size: 1.85rem; font-weight: 700; margin-bottom: 8px; }
.product-sku { color: var(--text-muted); font-family: monospace; font-size: 0.85rem; margin-bottom: 12px; }
.product-price-lg { font-size: 2rem; font-weight: 700; color: var(--primary); margin: 16px 0; }
.product-description {
  color: var(--text-light);
  line-height: 1.6;
  margin: 16px 0;
  padding: 16px;
  background: #f8fafd;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary);
}

.product-detail-pages {
  margin: 18px 0 10px;
  background: #fff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.product-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding: 10px;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  border-bottom: 1px solid var(--gray-border);
}
.product-tab {
  border: 1px solid #cbd5e1;
  background: #fff;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}
.product-tab.active {
  background: #ecfeff;
  border-color: #67e8f9;
  color: #0e7490;
}
.product-tab-panels { padding: 16px; }
.product-tab-panel { display: none; color: var(--text-light); line-height: 1.65; }
.product-tab-panel.active { display: block; }
.product-tab-panel table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 0.92rem; }
.product-tab-panel th, .product-tab-panel td { border: 1px solid #e2e8f0; padding: 10px; vertical-align: top; }
.product-tab-panel th { background: #f8fafc; text-align: left; font-weight: 800; color: #0f172a; }
.product-tab-panel img { max-width: 100%; border-radius: 12px; border: 1px solid #e2e8f0; }
.product-meta-grid {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 20px 0;
}
.meta-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid #eef2f9; font-size: 0.9rem; }
.meta-row:last-child { border-bottom: none; }
.stock-badge { padding: 4px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.stock-in { background: #d1fae5; color: #059669; }
.stock-low { background: #fef3c7; color: #d97706; }
.stock-out { background: #fee2e2; color: #dc2626; }
.product-actions-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 24px; }
.product-actions-row input[type="number"] {
  width: 72px;
  padding: 10px;
  border: 1px solid var(--gray-border);
  border-radius: 10px;
  text-align: center;
}
.btn-product-cart {
  background: var(--primary);
  color: white;
  border: none;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-product-cart:hover { background: var(--primary-dark); }
.btn-product-secondary {
  border: 1px solid var(--primary);
  color: var(--primary);
  background: transparent;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.related-section { margin: 40px 0 60px; }
.related-section h2 { font-size: 1.35rem; margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; }
.related-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  border: 1px solid var(--gray-border);
  cursor: pointer;
  transition: 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: #bdd4fc; }
.related-card img { width: 80px; height: 80px; object-fit: cover; border-radius: 12px; margin-bottom: 10px; }
.related-card i { font-size: 48px; color: var(--primary); margin-bottom: 10px; }
.product-error-box {
  text-align: center;
  padding: 48px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-border);
}
.product-error-box i { font-size: 56px; color: var(--danger); margin-bottom: 16px; }

.product-mobile-sticky {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 200;
  background: var(--white);
  border-top: 1px solid var(--gray-border);
  box-shadow: 0 -8px 24px rgba(10, 22, 40, 0.1);
  padding: 12px 16px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  padding-left: max(16px, env(safe-area-inset-left));
  padding-right: max(16px, env(safe-area-inset-right));
  align-items: center;
  gap: 12px;
}
.product-mobile-sticky__price {
  flex: 1;
  min-width: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
}
.product-mobile-sticky__price small {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
}
.product-mobile-sticky .btn-product-cart {
  flex-shrink: 0;
  min-height: 48px;
  padding: 12px 20px;
}

@media (max-width: 768px) {
  .product-mobile-sticky { display: flex; }
  body.product-page-main { padding-bottom: 88px; }
  .product-detail { margin-bottom: 24px; }
  .product-actions-row .btn-product-cart { display: none; }
  .related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 480px) {
  .related-grid { grid-template-columns: 1fr; }
  .product-title { font-size: 1.45rem; }
  .product-price-lg { font-size: 1.65rem; }
}

@media (max-width: 768px) {
  .product-detail { flex-direction: column; gap: 24px; }
  .product-gallery { max-width: none; width: 100%; }
  .product-image-main { min-height: 240px; padding: 20px; }
  .product-info-panel { width: 100%; min-width: 0; }
  .product-actions-row input[type="number"] {
    min-height: 44px;
    width: 56px;
    font-size: 16px;
  }
  .product-actions-row .btn-product-secondary {
    min-height: 44px;
  }
}