/* ==========================================================
   Каталог: список, фильтры, страница товара
   ========================================================== */

.section--first { padding-top: calc(var(--header-h) + 36px); min-height: 0; }
.section--compact { padding: clamp(56px, 8vw, 100px) 0; }
.empty { color: var(--graphite-300); }

/* ---------- Хлебные крошки ---------- */
.crumbs { margin-bottom: 28px; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 6px 0; font-size: 13px; color: var(--muted); }
.crumbs li + li::before { content: '/'; margin: 0 10px; opacity: .45; }
.crumbs a { transition: color .2s; }
.crumbs a:hover { color: var(--terra-600); }
.crumbs [aria-current] { color: var(--ink); font-weight: 500; }

/* ---------- Шапка каталога ---------- */
.catalog__head { margin-bottom: 28px; }
.catalog__head .h2 { font-size: clamp(38px, 5.4vw, 72px); }
.chips--nav { margin: 0 0 40px; }
.chips--nav a.is-active { background: var(--graphite-800); border-color: var(--graphite-800); color: #fff; }

/* ---------- Раскладка ---------- */
.catalog__layout { display: grid; grid-template-columns: 270px 1fr; gap: clamp(28px, 4vw, 64px); align-items: start; }
.catalog__layout--single { grid-template-columns: 1fr; }
.filters { position: sticky; top: 92px; max-height: calc(100vh - 110px); overflow-y: auto; padding-right: 8px; scrollbar-width: thin; }
.filters__head { display: none; }
.facet { border: 0; margin: 0 0 30px; padding: 0 0 26px; border-bottom: 1px solid rgba(30,32,35,.12); min-width: 0; }
.facet:last-of-type { border-bottom: 0; }
.facet legend { padding: 0; margin-bottom: 14px; font-family: var(--font-serif); font-size: 22px; font-weight: 600; }

.check { display: flex; align-items: center; gap: 12px; padding: 7px 0; cursor: pointer; font-size: 15px; }
.check input { position: absolute; opacity: 0; pointer-events: none; }
.check__box {
  flex: none; width: 20px; height: 20px; border: 1.5px solid rgba(30,32,35,.35); border-radius: 4px;
  display: grid; place-items: center; transition: background .2s, border-color .2s;
}
.check__box::after { content: ''; width: 5px; height: 10px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg) scale(0); margin-top: -2px; transition: transform .2s; }
.check input:checked + .check__box { background: var(--terra-500); border-color: var(--terra-500); }
.check input:checked + .check__box::after { transform: rotate(45deg) scale(1); }
.check input:focus-visible + .check__box { outline: 2px solid var(--terra-500); outline-offset: 2px; }
.check:hover .check__box { border-color: var(--terra-500); }
.check__label { flex: 1; }
.check__n { font-size: 12px; color: var(--graphite-300); }

.filters__actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.filters__actions .btn { padding: 14px 26px; }
.filters__reset { font-size: 13px; text-decoration: underline; text-underline-offset: 4px; color: var(--muted); }
.filters__reset:hover { color: var(--terra-600); }
.filters-overlay, .filters-toggle { display: none; }

/* ---------- Панель над сеткой ---------- */
.toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; min-height: 40px; }
.toolbar__count { font-size: 14px; color: var(--muted); }
.filters-toggle {
  align-items: center; gap: 10px; padding: 11px 20px; border-radius: 999px; cursor: pointer;
  background: var(--graphite-800); color: #fff; border: 0; font-size: 13px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
}
.filters-toggle b { display: inline-grid; place-items: center; min-width: 20px; height: 20px; border-radius: 10px; background: var(--terra-500); font-size: 11px; }

/* ---------- Сетка товаров ---------- */
.catalog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 3vw, 44px) clamp(16px, 2vw, 28px); }
.catalog-grid--4 { grid-template-columns: repeat(4, 1fr); }
.catalog-grid .product:nth-child(n) { margin-top: 0; }
.catalog-grid .product__detail { color: var(--muted); }
.catalog-grid .product:hover .product__name { color: var(--terra-600); }
.catalog__layout--single .catalog-grid { grid-template-columns: repeat(4, 1fr); }
.empty-box { padding: 70px 24px; text-align: center; border: 1px dashed rgba(30,32,35,.25); border-radius: var(--radius); color: var(--muted); display: grid; gap: 18px; justify-items: center; }

.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 56px; padding-top: 24px; border-top: 1px solid rgba(30,32,35,.12); font-size: 13px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.pager a:hover { color: var(--terra-600); }
.pager__info { color: var(--muted); font-weight: 500; letter-spacing: .05em; }

/* ---------- Страница товара ---------- */
.pdp { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.gallery { position: sticky; top: 92px; }
.gallery__stage {
  position: relative; display: block; width: 100%; aspect-ratio: 4 / 3.4; padding: 0; border: 0; overflow: hidden;
  border-radius: var(--radius); background: var(--bone-2); cursor: zoom-in;
}
.gallery__stage img { width: 100%; height: 100%; object-fit: cover; transition: opacity .3s; }
.gallery__stage--empty { cursor: default; }
.gallery__count { position: absolute; right: 16px; bottom: 16px; padding: 6px 12px; border-radius: 999px; background: rgba(23,24,27,.7); color: #fff; font-size: 12px; letter-spacing: .08em; }
.gallery__thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); gap: 10px; margin-top: 12px; }
.gallery__thumb { padding: 0; aspect-ratio: 1; border: 2px solid transparent; border-radius: 4px; overflow: hidden; cursor: pointer; background: var(--bone-2); opacity: .65; transition: opacity .25s, border-color .25s; }
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumb:hover { opacity: 1; }
.gallery__thumb.is-active { opacity: 1; border-color: var(--terra-500); }

.pdp__cat { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--terra-600); margin-bottom: 14px; }
.pdp__cat:hover { text-decoration: underline; text-underline-offset: 4px; }
.pdp__title { font-family: var(--font-serif); font-weight: 500; font-size: clamp(38px, 4.6vw, 64px); line-height: 1.02; letter-spacing: -.01em; }
.pdp__desc { margin-top: 24px; color: var(--muted); font-size: 16px; max-width: 56ch; }
.pdp__desc p + p { margin-top: 12px; }
.pdp__sub { margin: 44px 0 6px; font-family: var(--font-serif); font-size: 28px; font-weight: 600; }
.specs { margin: 0; border-top: 1px solid rgba(30,32,35,.15); }
.specs__row { display: grid; grid-template-columns: minmax(120px, 42%) 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid rgba(30,32,35,.12); font-size: 15px; }
.specs dt { color: var(--muted); }
.specs dd { margin: 0; font-weight: 500; }
.pdp__actions { margin-top: 40px; }
.btn--dark { background: var(--graphite-800); color: #fff; }
.btn--dark:hover { background: var(--terra-500); }

/* ---------- Просмотр фото ---------- */
.lightbox { position: fixed; inset: 0; z-index: 100; display: none; place-items: center; background: rgba(15,16,18,.94); }
.lightbox.is-open { display: grid; }
.lightbox img { max-width: 92vw; max-height: 88vh; object-fit: contain; border-radius: 4px; }
.lightbox button { position: absolute; width: 52px; height: 52px; border-radius: 50%; border: 0; cursor: pointer; background: rgba(255,255,255,.12); color: #fff; font-size: 26px; line-height: 1; transition: background .25s; }
.lightbox button:hover { background: var(--terra-500); }
.lightbox__close { top: 20px; right: 20px; }
.lightbox__prev { left: 20px; top: 50%; margin-top: -26px; }
.lightbox__next { right: 20px; top: 50%; margin-top: -26px; }

/* ---------- Адаптив ---------- */
@media (max-width: 1100px) {
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
  .catalog-grid--4, .catalog__layout--single .catalog-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .catalog__layout { grid-template-columns: 1fr; }
  .filters-toggle { display: inline-flex; }

  .filters {
    position: fixed; z-index: 90; top: 0; bottom: 0; left: 0; max-height: none; width: min(88vw, 360px);
    padding: 0 22px 22px; background: var(--bone); box-shadow: 20px 0 60px rgba(0,0,0,.25);
    transform: translateX(-102%); transition: transform .4s var(--ease);
  }
  .filters.is-open { transform: none; }
  .filters__head { position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; padding: 20px 0; margin-bottom: 14px; background: var(--bone); border-bottom: 1px solid rgba(30,32,35,.12); font-family: var(--font-serif); font-size: 26px; font-weight: 600; }
  .filters__close { width: 40px; height: 40px; border: 0; background: none; font-size: 30px; line-height: 1; cursor: pointer; }
  .filters__actions { position: sticky; bottom: 0; padding: 16px 0 0; background: var(--bone); }
  .filters-overlay { position: fixed; inset: 0; z-index: 80; display: block; background: rgba(15,16,18,.55); opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
  .filters-overlay.is-open { opacity: 1; visibility: visible; }

  .pdp { grid-template-columns: 1fr; }
  .gallery { position: static; }
  .catalog-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .catalog-grid, .catalog__layout--single .catalog-grid, .catalog-grid--4 { grid-template-columns: repeat(2, 1fr); gap: 24px 12px; }
  .catalog-grid .product__name { font-size: 20px; }
  .catalog-grid .product__detail { font-size: 12px; }
  .specs__row { grid-template-columns: 1fr; gap: 2px; }
  .lightbox__prev { left: 8px; } .lightbox__next { right: 8px; }
}