/* =========================================================
   HÖFER — catalog-page.css
   Внутренние страницы каталога
   ========================================================= */

/* ---------- Двухколоночный layout ---------- */
.catalog-page {
  padding-bottom: var(--section-y);
}

.catalog-page__grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

.catalog-page__content {
  min-width: 0;
}

.catalog-page__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--c-text);
  margin: 0 0 24px;
}

.catalog-page__meta {
  font-size: 14px;
  color: var(--c-text-muted);
  margin: -16px 0 24px;
}

/* ---------- Сетка категорий ---------- */
.catalog-page__grid-cards {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

/* ---------- Сайдбар ---------- */
.sidebar {
  position: sticky;
  top: 100px;
  align-self: start;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding-right: 8px;
}

.sidebar__group-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-text);
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--c-red);
}

.sidebar__menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar__item {
  position: relative;
}

/* ---------- Ссылка раздела ---------- */
.sidebar__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  line-height: 1.3;
  color: var(--c-text);
  border-radius: var(--radius-sm);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.sidebar__link:hover {
  background: var(--c-gray-50);
  color: var(--c-red);
}

.sidebar__item.is-active > .sidebar__link {
  background: var(--c-red);
  color: var(--c-white);
}

.sidebar__link-text {
  flex: 1;
  min-width: 0;
}

.sidebar__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--c-gray-400);
  flex-shrink: 0;
  transition: transform .45s cubic-bezier(.22,.61,.36,1),
              color var(--tr-fast);
}

.sidebar__item.is-active > .sidebar__link .sidebar__arrow {
  color: var(--c-white);
}

/* ---------- Подменю ---------- */
.sidebar__submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height .55s cubic-bezier(.22,.61,.36,1),
              padding .55s cubic-bezier(.22,.61,.36,1),
              opacity .35s ease;
  background: var(--c-gray-50);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  opacity: 0;
}

.sidebar__item:hover > .sidebar__submenu,
.sidebar__item.is-active > .sidebar__submenu {
  max-height: 500px;
  padding: 8px 0;
  opacity: 1;
}

.sidebar__item:hover > .sidebar__link .sidebar__arrow {
  transform: rotate(90deg);
  color: var(--c-red);
}

.sidebar__sublink {
  display: block;
  padding: 8px 12px 8px 24px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--c-text-muted);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.sidebar__sublink:hover {
  background: var(--c-white);
  color: var(--c-red);
}

/* ---------- Скроллбар в сайдбаре ---------- */
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb {
  background: var(--c-gray-200);
  border-radius: 3px;
}
.sidebar::-webkit-scrollbar-thumb:hover { background: var(--c-gray-400); }

/* ---------- Адаптив ---------- */
@media (max-width: 1280px) {
  .catalog-page__grid {
    grid-template-columns: 260px 1fr;
    gap: 32px;
  }
  .catalog-page__grid-cards {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 1024px) {
  .catalog-page__grid {
    grid-template-columns: 220px 1fr;
    gap: 24px;
  }
  .catalog-page__grid-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .catalog-page__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .sidebar {
    display: none;
  }
  .catalog-page__grid-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  .catalog-page__grid-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .sidebar__submenu,
  .sidebar__arrow {
    transition: none;
  }
}