/* ═══════════════════════════════════════════════════════════════
   Product Detail Page — MC Виан B2B Portal
   ═══════════════════════════════════════════════════════════════ */

/* ── Product Top (two-column) ────────────────────────────── */
.product-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  padding: var(--space-xl) 0;
  align-items: start;
}

/* ── Gallery ─────────────────────────────────────────────── */
.product-gallery {
  min-width: 0;
}

.product-gallery__main {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  aspect-ratio: 1 / 1;
  cursor: zoom-in;
  user-select: none;
  -webkit-user-select: none;
}

.product-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.25s ease;
  will-change: transform;
  pointer-events: none;
}

.product-gallery__main.is-zoomed {
  cursor: grab;
}

.product-gallery__main.is-zoomed img {
  transition: none;
}

/* Zoom level indicator */
.product-gallery__zoom-level {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  background: rgba(0, 0, 0, 0.6);
  border-radius: var(--radius-sm);
  pointer-events: none;
  z-index: 2;
  backdrop-filter: blur(4px);
}

.product-gallery__thumbs {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  overflow-x: auto;
  min-width: 0;
}

.product-gallery__thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-surface);
  padding: 0;
  flex-shrink: 0;
  transition: var(--transition);
}

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

.product-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Product Info ────────────────────────────────────────── */
.product-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-width: 0;
}

.product-info__article {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  overflow-wrap: anywhere;
}

.product-info__ktru {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.product-info__ktru a,
.product-info__ktru strong {
  color: var(--color-text);
  font-weight: 600;
  text-decoration: none;
}
.product-info__ktru a:hover { text-decoration: underline; }
.product-info__ktru i { opacity: 0.7; }

.product-info__name {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  overflow-wrap: anywhere;
}

.product-info__status { margin: var(--space-xs) 0; }

.product-info__prices {
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.product-info__price {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
}

.product-info__price--dealer {
  color: var(--color-success);
}

.product-info__price--retail {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  opacity: 0.5;
}

.product-info__discount-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-success);
  background: rgba(34, 197, 94, 0.1);
  border-radius: var(--radius-sm);
  vertical-align: middle;
  margin-left: var(--space-xs);
}

.product-info__price-locked {
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.product-info__price-locked a {
  color: var(--color-primary);
  text-decoration: none;
}

/* (#9) Бейдж «Под заказ — уточняйте цену» */
.product-info__on-order-note,
.card-product__on-order-note {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 6px 10px;
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: 8px;
  color: #b45309;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  width: fit-content;
  max-width: 100%;
}
.product-info__on-order-note i,
.card-product__on-order-note i {
  font-size: 15px;
  flex-shrink: 0;
  color: #d97706;
}
.product-info__on-order-note b { font-weight: 700; }
.product-info__on-order-note {
  font-size: 13px;
  padding: 8px 14px;
  gap: 8px;
}
.product-info__on-order-note i { font-size: 18px; }
@media (prefers-color-scheme: dark) {
  .product-info__on-order-note,
  .card-product__on-order-note {
    background: rgba(245, 158, 11, 0.06);
    border-color: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
  }
  .product-info__on-order-note i,
  .card-product__on-order-note i { color: #f59e0b; }
}
html.dark .product-info__on-order-note,
html.dark .card-product__on-order-note {
  background: rgba(245, 158, 11, 0.06);
  border-color: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
}
html.dark .product-info__on-order-note i,
html.dark .card-product__on-order-note i { color: #f59e0b; }
@media (max-width: 360px) {
  .card-product__on-order-note { font-size: 11px; padding: 5px 8px; gap: 5px; }
  .card-product__on-order-note i { font-size: 13px; }
  .product-info__on-order-note { font-size: 12px; padding: 6px 10px; }
}

/* ── Quantity Control ────────────────────────────────────── */
.product-info__cart-actions {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.quantity-control {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.quantity-control__btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border: none;
  cursor: pointer;
  color: var(--color-text);
  transition: var(--transition);
}

.quantity-control__btn:hover {
  background: var(--color-border);
}

.quantity-control__input {
  width: 56px;
  height: 40px;
  text-align: center;
  border: none;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  font-size: 0.9375rem;
  font-weight: 600;
  -moz-appearance: textfield;
}

.quantity-control__input::-webkit-inner-spin-button,
.quantity-control__input::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

.product-info__quick-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ── Product Tabs ────────────────────────────────────────── */
.product-tabs {
  margin: var(--space-2xl) 0;
}

.product-tabs .tab-pane {
  padding: var(--space-xl) 0;
}

/* ── Specs Table ─────────────────────────────────────────── */
.specs-group-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.specs-group-title:first-child {
  margin-top: 0;
}

.product-tabs .table--striped {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
}

.product-tabs .table--striped td {
  padding: 10px 14px;
  font-size: 0.9375rem;
  line-height: 1.5;
  border-bottom: 1px solid var(--color-border-light, #f0f0f0);
  vertical-align: top;
}

.product-tabs .table--striped tr:nth-child(even) td {
  background: var(--color-bg);
}

.product-tabs .table--striped tr:hover td {
  background: var(--color-primary-light);
}

.specs-label {
  width: 40%;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.specs-value {
  font-weight: 500;
  color: var(--color-text);
}

.specs-unit {
  font-weight: 400;
  color: var(--color-text-muted, var(--color-text-secondary));
  font-size: 0.875em;
}

/* ── Multi-value characteristic chips ────────────────────── */
/* Множественный выбор (enum) хранится в БД как «А||Б||В».     */
/* В шаблоне фильтр value_chips режет на список, рендерим      */
/* набор pill-чипов вместо «||»-разделителя.                   */
.chip-list {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  vertical-align: middle;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.875em;
  line-height: 1.3;
  background: var(--color-surface, #f1f5f9);
  color: var(--color-text, #0f172a);
  border: 1px solid var(--color-border, #e2e8f0);
  white-space: nowrap;
}

.chip--value {
  background: rgba(59, 130, 246, 0.08);
  color: #1d4ed8;
  border-color: rgba(59, 130, 246, 0.18);
}

[data-theme="dark"] .chip--value,
html.dark .chip--value {
  background: rgba(96, 165, 250, 0.15);
  color: #93c5fd;
  border-color: rgba(96, 165, 250, 0.35);
}

/* ── Скрытый комментарий характеристики (#9) ─────────────── */
/* Менеджер при заполнении карточки товара оставляет нюансы по         */
/* характеристике; на портале они показываются мелким курсивом возле   */
/* значения. Видимость управляется hide_characteristic_comment.        */
.specs-comment {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin-top: 6px;
  padding: 6px 10px;
  border-left: 3px solid var(--color-primary, #3b82f6);
  background: rgba(59, 130, 246, 0.06);
  border-radius: 0 6px 6px 0;
  color: var(--color-text-secondary, #475569);
  font-size: 0.875em;
  font-style: italic;
  line-height: 1.45;
}

.specs-comment > i {
  font-size: 1.05em;
  margin-top: 2px;
  flex-shrink: 0;
}

.specs-comment__text {
  flex: 1;
  word-break: break-word;
}

[data-theme="dark"] .specs-comment,
html.dark .specs-comment {
  background: rgba(96, 165, 250, 0.1);
  border-left-color: #60a5fa;
  color: var(--color-text-secondary-dark, #94a3b8);
}

/* ── Product Description ─────────────────────────────────── */
.product-description__content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
  max-width: 780px;
  letter-spacing: 0.01em;
}

.product-description__content p,
.product-description__content br + br {
  margin-bottom: var(--space-md);
}

.product-description__meta {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-light, #f0f0f0);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.product-description__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.product-description__meta-item i {
  font-size: 1.125rem;
  color: var(--color-primary);
}

.product-description__meta-item a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.product-description__meta-item a:hover {
  text-decoration: underline;
}

/* Empty description state */
.product-description--empty {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  color: var(--color-text-secondary);
}

.product-description--empty i {
  font-size: 3rem;
  color: var(--color-border);
  display: block;
  margin-bottom: var(--space-md);
}

.product-description--empty p {
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: var(--space-xs);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Documents List ──────────────────────────────────────── */
.docs-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.docs-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-text);
  transition: var(--transition);
}

.docs-list__item:hover {
  background: var(--color-primary-light);
}

.docs-list__item i:first-child {
  font-size: 1.25rem;
  color: var(--color-danger);
}

.docs-list__item span {
  flex: 1;
}

.docs-list__item i:last-child {
  color: var(--color-primary);
}

/* ── Related ─────────────────────────────────────────────── */
.related-section .products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.related-section .card-product {
  min-width: 0;
}

/* ── Total Price Display ─────────────────────────────────── */
.product-info__total {
  margin-top: var(--space-xs);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.product-info__total span {
  font-weight: 600;
  color: var(--color-text);
}

/* ── Responsive ─────────────────────────────────────────── */
/* lg-: 2 колонки в related */
@media (max-width: 1023px) {
  .product-top { gap: var(--space-xl); }
  .related-section .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* md: галерея и инфо в столбец */
@media (max-width: 767px) {
  .product-top {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-md) 0;
  }
  /* Главная картинка — не больше viewport-height/2, чтобы кнопка купить
     была видна сразу без скролла */
  .product-gallery__main {
    aspect-ratio: 1 / 1;
    max-height: 60vh;
  }
  .product-gallery__thumb { width: 56px; height: 56px; }
  .product-info__name {
    font-size: clamp(1.125rem, 4vw, 1.375rem);
    line-height: 1.25;
  }
  .product-info__article { font-size: 12px; }
  .product-info__cart-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .quantity-control { align-self: flex-start; }
  .product-info__cart-actions .btn { width: 100%; }
  .product-info__quick-actions {
    gap: var(--space-xs);
    width: 100%;
  }
  .product-info__quick-actions .btn { flex: 1; font-size: 13px; }
  .product-tabs { margin: var(--space-xl) 0; }
  .product-tabs .tab-pane { padding: var(--space-md) 0; }
  /* Таблица характеристик: используется .table--striped — слабо
     помещается на мобилке. Превращаем в стек "ключ — значение" */
  .product-tabs .table--striped { display: block; }
  .product-tabs .table--striped tbody { display: block; }
  .product-tabs .table--striped tr {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
  }
  .product-tabs .table--striped td {
    display: block;
    padding: 0;
    border: none;
  }
  .product-tabs .table--striped td:first-child {
    font-size: 12px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
  }
  .product-tabs .table--striped td:last-child {
    font-size: 14px;
    font-weight: 500;
  }
  .specs-group-title {
    font-size: 0.9375rem;
    margin-top: var(--space-md);
  }
  .related-section .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
}

/* xs: 280-359px */
@media (max-width: 359px) {
  .product-info__name { font-size: 1rem; }
  .product-gallery__thumb { width: 48px; height: 48px; }
  .quantity-control__btn { width: 36px; height: 36px; }
  .quantity-control__input { width: 48px; height: 36px; font-size: 14px; }
  .product-info__quick-actions { flex-direction: column; }
  .product-info__quick-actions .btn { width: 100%; }
  .related-section .products-grid {
    grid-template-columns: 1fr;
  }
}