/* css/product.css
   Только страница товара: двухколоночная вёрстка, галерея, buybox,
   вкладки .tabs (не путать с .pc__tabs — те в common.css и используются в модалке).
*/

/* ---------- Product page ---------- */
.product-page{
  display:grid;gap:32px;
  grid-template-columns:minmax(0, 1fr) minmax(0, 1.1fr);
  align-items:start;
}
@media (max-width:900px){ .product-page{grid-template-columns:1fr} }

/* ---------- Галерея ---------- */
.gallery{display:grid;gap:12px}
.gallery__main{
  display:flex;align-items:center;justify-content:center;
  background:var(--c-bg-soft);
  border:1px solid var(--c-border);border-radius:var(--radius);
  aspect-ratio:4 / 3;padding:16px;
}
.gallery__main img{max-width:100%;max-height:100%;object-fit:contain}
.gallery__thumbs{
  display:grid;grid-template-columns:repeat(auto-fill, minmax(72px, 1fr));
  gap:10px;list-style:none;margin:0;padding:0;
}
.gallery__thumb{
  display:flex;align-items:center;justify-content:center;
  aspect-ratio:1 / 1;background:#fff;
  border:1px solid var(--c-border);border-radius:var(--radius);
  cursor:pointer;padding:6px;
  transition:border-color .15s;
}
.gallery__thumb:hover{border-color:var(--c-primary)}
.gallery__thumb.is-active{border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(44,120,254,.15)}
.gallery__thumb img{max-width:100%;max-height:100%;object-fit:contain}

/* ---------- Buybox ---------- */
.buybox{display:grid;gap:16px}
.buybox__title{font-size:26px;font-weight:800;line-height:1.25;margin:0}
.buybox__meta{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--c-muted)}
.buybox__meta b{color:var(--c-text);font-weight:600}
.buybox__price{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.buybox__price .price{font-size:34px;font-weight:800;color:var(--c-text)}
.buybox__price .currency{font-size:20px;font-weight:700;color:var(--c-muted)}
.buybox__price small{color:var(--c-muted);font-size:13px}

.buybox__stock{
  display:inline-flex;align-items:center;gap:6px;
  color:#15803d;font-weight:600;font-size:14px;
}
.buybox__stock .feather{width:16px;height:16px;stroke:currentColor}

.buybox__note{
  font-size:13px;color:#b45309;background:#fffbeb;
  border:1px solid #fde68a;border-radius:var(--radius);
  padding:10px 12px;margin:0;
}

.buybox__actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* Счётчик +/- крупнее, чем в каталоге */
.buybox__actions .num-in{
  display:inline-flex;align-items:center;
  border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden;
  height:44px;
}
.buybox__actions .minus,
.buybox__actions .plus{
  width:40px;height:44px;display:grid;place-items:center;
  background:#f9fafb;color:var(--c-text);font-size:20px;font-weight:700;line-height:1;
}
.buybox__actions .minus:hover,
.buybox__actions .plus:hover{background:#eef2f7}
.buybox__actions .minus.dis{opacity:.4;pointer-events:none;cursor:default}
.buybox__actions .in-num{
  width:52px;height:44px;text-align:center;border:0;background:#fff;
  font-weight:700;font-size:16px;
}

.btn-cart{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius);
  background:var(--c-primary);color:#fff;font-weight:700;
  transition:filter .15s;
}
.btn-cart:hover{filter:brightness(1.08)}
.btn-go-cart{
  display:none;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius);
  background:var(--c-success);color:#fff;font-weight:700;
}
.btn-go-cart.is-visible{display:inline-flex}

.buybox__short{
  display:grid;grid-template-columns:minmax(140px,auto) 1fr;
  gap:6px 14px;margin:0;font-size:14px;
  border-top:1px solid var(--c-border);padding-top:14px;
}
.buybox__short dt{color:var(--c-muted)}
.buybox__short dd{margin:0}

/* ---------- Табы (страница товара) ---------- */
.tabs{margin-top:36px}
.tabs__nav{display:flex;gap:4px;border-bottom:1px solid var(--c-border)}
.tabs__tab{
  position:relative;padding:12px 16px;
  font-weight:600;font-size:15px;color:var(--c-muted);
  border-radius:var(--radius) var(--radius) 0 0;
  transition:color .15s,background .15s;
}
.tabs__tab:hover{color:var(--c-text);background:#f9fafb}
.tabs__tab[aria-selected="true"]{color:var(--c-primary)}
.tabs__tab[aria-selected="true"]::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.tabs__panels{padding-top:20px}
.tabs__panel[hidden]{display:none}

/* ---------- Описание (на странице товара) ---------- */
.desc{font-size:15px;line-height:1.65;max-width:820px}
.desc p{margin:0 0 14px}
.desc p:last-child{margin-bottom:0}
.desc ul,.desc ol{margin:0 0 14px;padding-left:22px}
.desc li{margin-bottom:4px}
.desc h4{margin:18px 0 8px;font-size:16px;font-weight:700}
.desc h4:first-child{margin-top:0}
.desc strong{font-weight:700}

/* ---------- Соседние товары ---------- */
.related{margin-top:48px}
.related__title{font-size:20px;font-weight:700;margin:0 0 16px}
.related__list{
  list-style:none;margin:0;padding:0;
  display:grid;gap:20px;
  grid-template-columns:repeat(auto-fill, minmax(220px, 1fr));
}
.related__card{
  display:flex;flex-direction:column;height:100%;
  padding:16px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--radius);
  transition:box-shadow .15s,transform .15s;
}
.related__card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.related__img{
  display:flex;align-items:center;justify-content:center;
  height:160px;margin-bottom:12px;
}
.related__img img{max-height:100%;width:auto;object-fit:contain}
.related__name{font-size:14px;font-weight:500;min-height:40px;margin-bottom:8px}
.related__price{margin-top:auto;font-weight:700;font-size:16px}

/* ---------- Mobile ---------- */
@media (max-width:767px){
  .buybox__title{font-size:22px}
  .buybox__price .price{font-size:28px}
}