/* ============================================
   Variant 2 — Industrial Professional
   Data-dense catalog, sidebar filters, B2B style
   ============================================ */

/* Header + navbar: see /css/header.css */

/* ---------- PAGE HEADER ---------- */
.page-header {
  background: #e8eef7;
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--color-gray-200);
}
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 13px;
  color: var(--color-gray-600);
  margin-bottom: var(--space-md);
}
.breadcrumbs a { color: var(--color-blue); }
.breadcrumbs a:hover { text-decoration: underline; }
.page-header__title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--space-sm);
}
.page-header__subtitle {
  font-size: 16px;
  color: var(--color-gray-600);
  line-height: 1.5;
}

/* ---------- CATALOG LAYOUT ---------- */
.catalog {
  padding: var(--space-xl) 0 var(--space-3xl);
  background: #f2f3f6;
}
.catalog__layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

/* ---------- SIDEBAR ---------- */
.sidebar-block {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}
.sidebar-block__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-blue);
}

/* Sidebar Tree */
.sidebar-tree { display: flex; flex-direction: column; }
.sidebar-tree__item { border-bottom: 1px solid var(--color-gray-100); }
.sidebar-tree__item:last-child { border-bottom: none; }
.sidebar-tree__link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-700);
  transition: color var(--transition-fast);
}
.sidebar-tree__link:hover { color: var(--color-blue); }
.sidebar-tree__link.is-active {
  color: var(--color-blue);
  font-weight: 600;
}
.sidebar-tree__count {
  margin-left: auto;
  font-size: 12px;
  color: var(--color-gray-600);
  font-weight: 400;
}
.sidebar-tree__dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--color-gray-500);
  flex-shrink: 0;
}
.sidebar-tree__dot--blue { background: var(--color-blue); }
.sidebar-tree__children {
  padding-left: var(--space-lg);
  padding-bottom: var(--space-sm);
}
.sidebar-tree__children a {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}
.sidebar-tree__children a:hover { color: var(--color-blue); }

/* Sidebar Price */
.sidebar-price__inputs {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.sidebar-price__inputs input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-size: 13px;
  text-align: center;
  outline: none;
  background: var(--color-input-bg);
}
.sidebar-price__inputs input:focus {
  border-color: var(--color-blue);
  background: var(--color-input-bg-focus);
}
.sidebar-price__sep { color: var(--color-gray-500); }
.sidebar-price__slider {
  position: relative;
  height: 4px;
  background: var(--color-gray-200);
  border-radius: 2px;
}
.sidebar-price__fill {
  position: absolute;
  height: 100%;
  width: 60%;
  background: var(--color-blue);
  border-radius: 2px;
}

/* Sidebar Checkboxes */
.sidebar-checkboxes {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.sidebar-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 14px;
  color: var(--color-gray-700);
  cursor: pointer;
  user-select: none;
}
.sidebar-checkbox input { display: none; }
.sidebar-checkbox__mark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-gray-300);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.sidebar-checkbox input:checked + .sidebar-checkbox__mark {
  background: var(--color-blue);
  border-color: var(--color-blue);
}
.sidebar-checkbox input:checked + .sidebar-checkbox__mark::after {
  content: '';
  width: 6px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -1px;
}
.sidebar__reset {
  width: 100%;
  margin-top: var(--space-sm);
}

/* ---------- CATALOG TOOLBAR ---------- */
.catalog-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}
.catalog-toolbar__results {
  font-size: 14px;
  color: var(--color-gray-600);
}
.catalog-toolbar__results strong { color: var(--color-black); }
.catalog-toolbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.catalog-toolbar__sort {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 14px;
  color: var(--color-gray-600);
}
.catalog-toolbar__sort select {
  padding: 6px 12px;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-black);
  outline: none;
  cursor: pointer;
  background: var(--color-input-bg);
}
.catalog-toolbar__sort select:focus {
  border-color: var(--color-blue);
  background: var(--color-input-bg-focus);
}
.catalog-toolbar__view {
  display: flex;
  gap: 4px;
}
.catalog-toolbar__view button {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}
.catalog-toolbar__view button.is-active,
.catalog-toolbar__view button:hover {
  background: var(--color-blue-ghost);
  color: var(--color-blue);
}

/* ---------- CATALOG GRID ---------- */
.catalog__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Industrial Product Card */
.catalog__grid .product-card {
  border-radius: var(--radius-md);
}
.catalog__grid .product-card:hover {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-md);
  transform: none;
}
.product-card__row {
  display: flex;
  align-items: stretch;
  gap: 0;
}
.product-card__image {
  width: 180px;
  flex-shrink: 0;
  background: #dce5f2;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--color-gray-200);
}
.product-card__placeholder { padding: var(--space-lg); }
.product-card__info {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.product-card__article {
  font-size: 11px;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}
.product-card__title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}
.product-card__title a {
  color: inherit;
  text-decoration: none;
}
.product-card__title a:hover {
  color: var(--color-blue);
}
a.product-card__image {
  color: inherit;
  text-decoration: none;
}
.product-card__specs-row {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-md);
}
.product-card__spec-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.spec-label {
  font-size: 11px;
  color: var(--color-gray-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.spec-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gray-800);
}
.product-card__actions-row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-gray-100);
}
.product-card__stock {
  font-size: 13px;
  font-weight: 600;
}
.product-card__stock.in-stock { color: var(--color-success); }
.product-card__price {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-blue);
  letter-spacing: -0.02em;
  margin-left: auto;
}
.product-card__actions-row .btn { flex-shrink: 0; }

/* Catalog cart qty stepper (same look as cart page) */
.product-card__actions-row .cart-qty-wrap {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-white);
  height: 36px;
  flex-shrink: 0;
}
.product-card__actions-row .cart-qty-wrap.is-busy {
  opacity: 0.65;
  pointer-events: none;
}
.product-card__actions-row .cart-qty-btn {
  width: 32px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 300;
  color: var(--color-gray-700);
  transition: background var(--transition-fast), color var(--transition-fast);
  user-select: none;
  line-height: 1;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.product-card__actions-row .cart-qty-btn:hover {
  background: var(--color-blue-ghost);
  color: var(--color-blue);
}
.product-card__actions-row .cart-qty-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.product-card__actions-row .cart-qty-input {
  width: 44px;
  height: 36px;
  border: none;
  border-left: 1.5px solid var(--color-gray-300);
  border-right: 1.5px solid var(--color-gray-300);
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-black);
  background: var(--color-input-bg);
  -moz-appearance: textfield;
  appearance: textfield;
  outline: none;
}
.product-card__actions-row .cart-qty-input::-webkit-outer-spin-button,
.product-card__actions-row .cart-qty-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* ---------- PAGINATION ---------- */
.catalog-empty,
.sidebar-empty {
  margin: 0;
  padding: var(--space-md) 0;
  color: var(--color-gray-500);
  font-size: 14px;
}
.catalog__grid .catalog-empty {
  grid-column: 1 / -1;
  padding: var(--space-2xl) 0;
  text-align: center;
}
.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.pagination-btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

.catalog-pagination {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: var(--space-xl);
}
.pagination-btn {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-gray-700);
  transition: all var(--transition-fast);
}
.pagination-btn:hover { border-color: var(--color-blue); color: var(--color-blue); }
.pagination-btn.is-active {
  background: var(--color-blue);
  color: white;
  border-color: var(--color-blue);
}
.pagination-btn--next {
  padding: 0 var(--space-md);
  font-weight: 600;
}

/* ---------- FEATURES STRIP ---------- */
.features-strip {
  padding: var(--space-xl) 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
}
.features-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}
.features-strip__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  color: var(--color-gray-600);
}
.features-strip__item svg { color: var(--color-blue); flex-shrink: 0; margin-top: 2px; }
.features-strip__item h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 4px;
}
.features-strip__item p {
  font-size: 13px;
  color: var(--color-gray-600);
  line-height: 1.45;
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--color-black);
  color: var(--color-gray-400);
  padding: var(--space-3xl) 0 var(--space-lg);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr 1.4fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}
.footer__logo {
  height: 88px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  margin-bottom: var(--space-md);
}
.footer__tagline {
  font-size: 14px;
  color: var(--color-gray-500);
  max-width: 300px;
  line-height: 1.7;
}
.footer__nav h4,
.footer__contacts-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer__nav ul { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer__nav a {
  font-size: 14px;
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}
.footer__nav a:hover { color: white; }
.footer__contacts-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.footer__contacts-col .footer__phone {
  font-size: 16px;
  font-weight: 700;
  color: white;
}
.footer__contacts-col .footer__email {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-blue-light);
}
.footer__contacts-col a { color: var(--color-blue-light); font-size: 16px; }
.footer__contacts-col p { font-size: 14px; color: var(--color-gray-500); }
.footer__contacts-col .btn { margin-top: var(--space-sm); }
.footer__bottom {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
  color: var(--color-gray-600);
}
.footer__bottom p { margin: 0; color: var(--color-gray-500); }
.footer__bottom a { color: var(--color-gray-500); }
.footer__bottom a:hover { color: white; }

/* ---------- ANIMATIONS ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.catalog-filters-toggle { display: none; }
.catalog-filters-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 120;
}
.catalog-filters-overlay.is-visible { display: block; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .catalog__layout { grid-template-columns: 1fr; }
  .catalog-filters-toggle { display: inline-flex; }
  .catalog-toolbar { flex-wrap: wrap; gap: var(--space-sm); }
  .catalog__sidebar {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 88vw);
    z-index: 130;
    background: #fff;
    padding: var(--space-lg);
    overflow-y: auto;
    transform: translateX(-105%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-lg);
  }
  .catalog__sidebar.is-open { transform: translateX(0); }
  .features-strip__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .product-card__row { flex-direction: column; }
  .product-card__image { width: 100%; height: 160px; border-right: none; border-bottom: 1px solid var(--color-gray-200); }
  .product-card__specs-row { flex-wrap: wrap; gap: var(--space-md); }
  .product-card__actions-row { flex-wrap: wrap; gap: var(--space-sm); }
  .features-strip__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .footer__bottom { flex-direction: column; gap: var(--space-sm); }
}

@media (max-width: 480px) {
  .catalog-toolbar { flex-direction: column; gap: var(--space-sm); }
  .catalog-toolbar__actions { flex-wrap: wrap; }
}