/* =============================================================
   SPC — Product detail + catalogue page styles
   ============================================================= */

/* ---------- BREADCRUMB ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--border-hairline);
  margin-bottom: 0;
}
.breadcrumb a {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
.breadcrumb a:hover { color: var(--text-primary); }
.breadcrumb-sep {
  font-size: 10px;
  color: var(--text-tertiary);
}
.breadcrumb-current {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-primary);
}

/* ---------- PRODUCTS PAGE HERO ---------- */
.catalogue-hero {
  background: var(--concrete-95);
  padding: var(--space-16) 0;
  border-bottom: 1px solid var(--concrete-80);
  position: relative;
  overflow: hidden;
}
.catalogue-hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--concrete-80) 1px, transparent 1px),
    linear-gradient(90deg, var(--concrete-80) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.3;
  pointer-events: none;
}
.catalogue-hero-inner {
  position: relative;
  z-index: 1;
}
.catalogue-hero .t-label { color: var(--concrete-40); display: block; margin-bottom: var(--space-3); }
.catalogue-hero h1 { color: var(--concrete-05); margin: 0 0 var(--space-4); }
.catalogue-hero p  { color: var(--concrete-40); margin: 0; max-width: 560px; }

/* ---------- CATALOGUE FILTER TABS ---------- */
.catalogue-filter {
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--border-hairline);
  background: var(--surface-card);
  position: sticky;
  top: 64px;
  z-index: 50;
}
.catalogue-filter-inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  border: 1px solid var(--border-default);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-1);
  transition: all var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}
.filter-btn:hover { background: var(--concrete-15); color: var(--text-primary); }
.filter-btn.is-active {
  background: var(--concrete-95);
  color: #fff;
  border-color: var(--concrete-95);
}
.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  background: var(--spc-red-500);
  color: #fff;
  font-size: 10px;
  border-radius: 999px;
  padding: 0 5px;
  margin-left: 6px;
}

/* ---------- CATALOGUE GRID ---------- */
.catalogue-section { padding: var(--space-16) 0; }
.catalogue-category-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--concrete-95);
}
.catalogue-category-header h2 { margin: 0; }
.catalogue-category-count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.catalogue-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.catalogue-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

/* Catalogue product card */
.cat-card {
  background: var(--surface-card);
  border: 1px solid var(--border-hairline);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur-normal) var(--ease-out), transform var(--dur-normal) var(--ease-out);
  position: relative;
}
.cat-card:hover { border-color: var(--concrete-95); transform: translateY(-3px); }
.cat-card:hover .cat-card__cta { background: var(--spc-red-500); color: #fff; }
.cat-card__img {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--concrete-05);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-hairline);
}
.cat-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.cat-card__sku {
  position: absolute;
  top: 10px;
  left: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--concrete-20);
  padding: 3px 7px;
}
.cat-card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.cat-card__body h3 { margin: 0; }
.cat-card__body p  { margin: 0; font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.cat-card__specs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}
.cat-card__cta {
  padding: 12px var(--space-5);
  border-top: 1px solid var(--border-hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  background: var(--concrete-05);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

/* ---------- PRODUCT DETAIL PAGE ---------- */
.product-hero {
  padding: var(--space-16) 0 var(--space-24);
  background: var(--surface-page);
}
.product-hero-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}
.product-hero-img-frame {
  background: var(--concrete-05);
  border: 1px solid var(--border-hairline);
  overflow: hidden;
  position: relative;
}
.product-hero-img-frame img {
  width: 100%;
  display: block;
}
.product-hero-content { padding-top: var(--space-4); }
.product-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-4);
}
.product-hero-name {
  margin: 0 0 var(--space-4);
  letter-spacing: -0.02em;
}
.product-hero-desc {
  color: var(--text-secondary);
  margin: 0 0 var(--space-8);
  line-height: 1.6;
}
.product-key-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-hairline);
  border: 1px solid var(--border-hairline);
  margin-bottom: var(--space-8);
}
.product-key-spec {
  background: var(--surface-card);
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.product-key-spec-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.product-key-spec-val {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.product-cta-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Spec sections */
.spec-section {
  padding: var(--space-16) 0;
  border-top: 1px solid var(--border-hairline);
}
.spec-section-title {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}
.spec-section-title h2 { margin: 0; }
.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6) var(--space-12);
}

/* Spec table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
}
.spec-table th,
.spec-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-hairline);
  vertical-align: middle;
}
.spec-table th {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 500;
  background: var(--concrete-05);
  border-bottom: 1.5px solid var(--border-strong);
  white-space: nowrap;
}
.spec-table td {
  font-size: 14px;
}
.spec-table td.spec-val {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--text-primary);
}
.spec-table td.spec-label {
  color: var(--text-secondary);
  font-size: 13px;
}
.spec-table tr:last-child td { border-bottom: none; }
.spec-table tr:hover td { background: var(--concrete-05); }

/* Spec row icons */
.spec-row__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-hairline);
  vertical-align: middle;
  margin-right: var(--space-2);
  flex-shrink: 0;
}
.spec-row__icon svg {
  width: 14px;
  height: 14px;
  stroke: var(--text-secondary);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

/* Dimensional note */
.dim-note {
  background: var(--concrete-05);
  border: 1px solid var(--border-hairline);
  border-left: 3px solid var(--spc-red-500);
  padding: var(--space-5) var(--space-6);
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: var(--space-6);
}

/* Related products */
.related-section {
  padding: var(--space-16) 0;
  background: var(--surface-alt);
  border-top: 1px solid var(--border-hairline);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-8);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1100px) {
  .catalogue-grid { grid-template-columns: repeat(3, 1fr); }
  .catalogue-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .product-hero-layout { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .catalogue-grid { grid-template-columns: repeat(2, 1fr); }
  .catalogue-grid--3 { grid-template-columns: 1fr; }
  .product-key-specs { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .catalogue-filter { top: 64px; }
}

@media (max-width: 480px) {
  .catalogue-grid { grid-template-columns: 1fr; }
}