/**
 * MFG Machinery — Products: product cards, catalog hero, filters, sidebar,
 * catalog grid, cards, pagination, loading states
 */

/* ----- Product cards (hover) ----- */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 600px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(44, 62, 80, 0.2);
}

.product-card .thumb {
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--color-primary-light);
}

.product-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .thumb img {
  transform: scale(1.06);
}

.product-card .body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.product-card h3 {
  margin: 0 0 0.5rem;
  color: var(--color-primary);
  font-size: 1.125rem;
}

.product-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.product-card .tag {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  font-weight: 600;
}

/* ----- Product center page (catalog hero + filters + cards) ----- */
.products-page-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  padding: 3.5rem 0 3rem;
  overflow: hidden;
}

@media (min-width: 768px) {
  .products-page-hero {
    min-height: 380px;
    padding: 4.5rem 0 3.5rem;
  }
}

.products-page-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: blur(2px);
  transform: scale(1.06);
}

.products-page-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(44, 62, 80, 0.88) 0%,
    rgba(44, 62, 80, 0.78) 50%,
    rgba(52, 73, 94, 0.85) 100%
  );
}

.products-page-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.products-page-hero__badge {
  margin: 0 0 1rem;
}

.products-page-hero__badge span {
  display: inline-block;
  padding: 0.35rem 1rem;
  border: 2px solid var(--color-accent);
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-white);
}

.products-page-hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.85rem, 4.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
}

.products-page-hero__subtitle {
  margin: 0 0 1.75rem;
  font-size: 1rem;
  line-height: 1.55;
  opacity: 0.92;
}

.products-page-hero__crumb-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.5rem;
  font-size: 0.8125rem;
  opacity: 0.9;
}

.products-page-hero__crumb-list a {
  color: rgba(255, 255, 255, 0.95);
}

.products-page-hero__crumb-list a:hover,
.products-page-hero__crumb-list a:focus-visible {
  color: var(--color-accent);
}

.products-page-hero__crumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.products-page-hero__crumb-list li:not(:last-child)::after {
  content: ">";
  opacity: 0.55;
  font-weight: 400;
}

/* Filter toolbar */
.product-filter-section {
  background: var(--color-white);
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(44, 62, 80, 0.08);
}

.product-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  justify-content: center;
}

.product-primary-tabs {
  flex-wrap: nowrap;
  justify-content: flex-start;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.25rem;
}

.product-primary-tabs::-webkit-scrollbar {
  height: 8px;
}

.product-primary-tabs::-webkit-scrollbar-thumb {
  background: rgba(44, 62, 80, 0.12);
  border-radius: 999px;
}

.filter-pill {
  appearance: none;
  cursor: pointer;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  border: 1px solid #dce0e3;
  background: var(--color-white);
  color: var(--color-primary);
  transition: background var(--transition), color var(--transition),
    border-color var(--transition), box-shadow var(--transition);
}

.filter-pill:hover,
.filter-pill:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.filter-pill.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.filter-pill:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Catalog grid + cards (reference layout) */
.products-catalog-section {
  padding: 0.5rem 0 1.5rem;
  background: #f4f6f7;
}

.products-layout {
  display: grid;
  gap: 0.5rem;
  position: relative;
  min-height: 280px;
}

.products-layout.is-loading {
  pointer-events: none;
  min-height: min(52vh, 560px);
}

.products-layout.is-loading > * {
  opacity: 0;
  visibility: hidden;
  overflow: hidden;
  max-height: 0;
  min-height: 0;
  margin: 0;
  padding: 0;
  border-width: 0;
}

.products-layout.is-loading::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.66);
  border-radius: 16px;
  z-index: 2;
}

.products-layout.is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  margin-top: -22px;
  margin-left: -22px;
  border-radius: 50%;
  border: 4px solid rgba(15, 23, 42, 0.18);
  border-top-color: #1d4ed8;
  animation: mfg-loading-spin 0.8s linear infinite;
  z-index: 3;
}

@media (min-width: 960px) {
  .products-layout {
    grid-template-columns: 280px 1fr;
    gap: 0.5rem;
    align-items: start;
  }
}

.products-sidebar__panel {
  border-radius: 14px;
  background: var(--color-white);
  box-shadow: 0 2px 16px rgba(44, 62, 80, 0.08);
  overflow: clip;
  border: 1px solid rgba(44, 62, 80, 0.06);
}

.products-sidebar__summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1rem 0.85rem;
  border-bottom: 1px solid rgba(44, 62, 80, 0.08);
  cursor: pointer;
  user-select: none;
}

.products-sidebar__summary * {
  pointer-events: auto;
}

.products-sidebar__reset {
  pointer-events: auto;
}

.products-sidebar__reset:active {
  transform: translateY(1px);
}

.products-sidebar__panel summary::-webkit-details-marker {
  display: none;
}

.products-sidebar__title {
  font-weight: 800;
  color: var(--color-primary);
}

.products-sidebar__reset {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--color-accent);
  font-weight: 700;
  cursor: pointer;
  padding: 0.25rem 0.4rem;
  border-radius: 8px;
}

.products-sidebar__reset:hover,
.products-sidebar__reset:focus-visible {
  background: rgba(45, 70, 106, 0.08);
  color: var(--color-accent-hover);
  outline: none;
}

.products-sidebar__content {
  padding: 0.9rem 1rem 1.1rem;
  display: grid;
  gap: 1.1rem;
}

.products-category-nav {
  display: grid;
  gap: 0.65rem;
}

.products-category-group {
  border: 1px solid rgba(44, 62, 80, 0.08);
  border-radius: 12px;
  overflow: clip;
  background: #fbfcfd;
}

.products-category-group__summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 0.9rem;
  cursor: pointer;
  user-select: none;
  font-weight: 800;
  color: var(--color-primary);
  background: rgba(44, 62, 80, 0.03);
}

.products-category-group summary::-webkit-details-marker {
  display: none;
}

.products-category-group__chev {
  font-size: 0.9rem;
  opacity: 0.6;
  transition: transform var(--transition);
}

.products-category-group[open] .products-category-group__chev {
  transform: rotate(180deg);
}

.products-category-list {
  list-style: none;
  margin: 0;
  padding: 0.25rem 0;
}

.products-category-list li + li {
  border-top: 1px solid rgba(44, 62, 80, 0.08);
}

.products-category-link {
  appearance: none;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  padding: 0.85rem 0.9rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  color: rgba(44, 62, 80, 0.9);
  transition: color var(--transition), background var(--transition);
}

.products-category-link:hover,
.products-category-link:focus-visible {
  background: rgba(45, 70, 106, 0.06);
  color: var(--color-accent);
  outline: none;
}

.products-category-link.is-active {
  color: #c87f12;
  font-weight: 800;
  background: rgba(216, 141, 23, 0.08);
}

.products-results {
  min-width: 0;
}

.products-results__header {
  margin-bottom: 1.25rem;
  padding: 0.35rem 0.1rem 0;
}

.products-results__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  letter-spacing: 0.02em;
  color: var(--color-primary);
}

.products-results__desc {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 72ch;
}

.catalog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  position: relative;
  min-height: 220px;
}

.catalog-grid.is-loading {
  pointer-events: none;
}

.catalog-grid.is-loading > * {
  opacity: 0;
  visibility: hidden;
}

.catalog-grid.is-loading::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.66);
  border-radius: 16px;
  z-index: 2;
}

.catalog-grid.is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  margin-top: -22px;
  margin-left: -22px;
  border-radius: 50%;
  border: 4px solid rgba(15, 23, 42, 0.18);
  border-top-color: #1d4ed8;
  animation: mfg-loading-spin 0.8s linear infinite;
  z-index: 3;
}

.product-detail-layout {
  position: relative;
  min-height: 300px;
}

.product-detail-layout.is-loading {
  pointer-events: none;
}

.product-detail-layout.is-loading > * {
  opacity: 0.25;
}

.product-detail-layout.is-loading::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.72);
  border-radius: 14px;
  z-index: 2;
}

.product-detail-layout.is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  margin-top: -22px;
  margin-left: -22px;
  border-radius: 50%;
  border: 4px solid rgba(15, 23, 42, 0.18);
  border-top-color: #1d4ed8;
  animation: mfg-loading-spin 0.8s linear infinite;
  z-index: 3;
}

@keyframes mfg-loading-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .catalog-grid.is-loading::after,
  .products-layout.is-loading::after,
  .product-detail-layout.is-loading::after {
    animation-duration: 1.5s;
  }
}

@media (min-width: 700px) {
  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .catalog-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.catalog-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(44, 62, 80, 0.08);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.catalog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(44, 62, 80, 0.14);
}

.catalog-card.is-filtered-out {
  display: none;
}

.catalog-card__media {
  background: #e8ecef;
  /* aspect-ratio: 4 / 3; */
  overflow: hidden;
  position: relative;
}

/* Shimmer skeleton — visible while image loads */
.catalog-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.45) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: catalog-shimmer 1.6s ease-in-out infinite;
}

/* Hide shimmer once image has loaded */
.catalog-card__media.is-media-loaded::after {
  display: none;
}

@keyframes catalog-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.catalog-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  transition: transform 0.45s ease, opacity 0.35s ease;
}

.catalog-card:hover .catalog-card__media img {
  transform: scale(1.04);
}

/* Products catalog: hide images until loaded so slow networks do not flash alt text. */
#product-catalog-grid .catalog-card__media img {
  opacity: 0;
}

#product-catalog-grid .catalog-card__media img.is-loaded {
  opacity: 1;
}

.catalog-card__body {
  padding: 1.35rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.catalog-card__body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  color: var(--color-primary);
}

.catalog-card__desc {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.5;
}

.catalog-card__specs {
  margin: 0;
  padding: 0;
  border-top: 1px solid #ecf0f1;
  padding-top: 0.85rem;
}

.catalog-card__specs--compact {
  border-top: none;
  padding-top: 0;
  margin-top: 0.35rem;
}

.catalog-card__spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
}

.catalog-card__spec-row:last-of-type {
  margin-bottom: 0;
}

.catalog-card__specs dt {
  margin: 0;
  font-weight: 600;
  color: var(--color-primary);
  flex-shrink: 0;
}

.catalog-card__specs dd {
  margin: 0;
  text-align: right;
  color: var(--color-muted);
}

.catalog-card__lead {
  color: var(--color-accent) !important;
  font-weight: 700 !important;
}

.catalog-card__cta {
  display: block;
  width: 100%;
  margin-top: auto;
  padding: 0.8rem 1rem;
  text-align: center;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-white);
  background: #233142;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}

.catalog-card__cta:hover,
.catalog-card__cta:focus-visible {
  background: #2f4b72;
  color: var(--color-white);
}

.catalog-pagination {
  margin-top: 1.25rem;
  display: none;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.catalog-pagination.is-visible {
  display: flex;
}

.catalog-pagination__btn {
  appearance: none;
  border: 1px solid rgba(44, 62, 80, 0.22);
  background: var(--color-white);
  color: var(--color-primary);
  min-width: 2.1rem;
  height: 2.1rem;
  padding: 0 0.65rem;
  border-radius: 6px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.catalog-pagination__btn:hover,
.catalog-pagination__btn:focus-visible {
  border-color: #233142;
  color: #233142;
  outline: none;
}

.catalog-pagination__btn.is-active {
  background: #233142;
  border-color: #233142;
  color: var(--color-white);
}

.catalog-pagination__btn.is-disabled,
.catalog-pagination__btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

@media (max-width: 959px) {
  .products-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 0.75rem);
    z-index: 2;
  }

  .products-sidebar__summary {
    padding: 0.85rem 0.9rem;
  }

  .products-layout {
    grid-template-columns: 1fr;
  }
}