/* =============================================================
   Catalog page — Rajasthan Marble World
   ============================================================= */

.page-hero {
  position: relative;
  background-color: var(--rmw-green-deep);
  background-image:
    linear-gradient(135deg, rgba(10,46,34,0.82) 0%, rgba(13,58,43,0.78) 100%),
    url('../assets/bg-green-granite.jpg');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 80px 0 64px;
  text-align: center;
}

.page-hero .section-kicker { color: var(--rmw-gold-light); }
.page-hero-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(34px, 5.5vw, 60px);
  font-weight: 400;
  line-height: 1.1;
  color: #fff;
  margin-bottom: 14px;
}
.page-hero-sub {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  max-width: 580px;
  margin: 0 auto;
}

/* ===================== FILTER BAR ===================== */
.catalog-filters {
  background: #fff;
  border-bottom: 1px solid var(--rule-soft);
  padding: 22px 0;
  position: sticky;
  top: var(--nav-h);
  z-index: 50;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: center;
}

.filter-chip {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  letter-spacing: 1.6px;
  font-weight: 600;
  text-transform: uppercase;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: var(--rmw-ivory);
  color: var(--ink-soft);
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}

.filter-chip:hover,
.filter-chip.active {
  background: var(--rmw-green);
  color: #fff;
  border-color: var(--rmw-green);
}

/* ===================== GRID ===================== */
.catalog-section {
  background: var(--rmw-ivory);
  padding: 56px 0 96px;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.marble-card {
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--rule-soft);
  display: flex;
  flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease;
}

.marble-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 36px rgba(13, 58, 43, 0.15);
}

.marble-image {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--rmw-cream);
}

.marble-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.marble-card:hover .marble-image img { transform: scale(1.06); }

.marble-body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.marble-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: .5px;
  color: var(--ink);
  margin-bottom: 4px;
  line-height: 1.2;
}

.marble-cat {
  font-family: 'Inter', sans-serif;
  font-size: 10.5px;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--rmw-gold);
  font-weight: 600;
  margin-bottom: 16px;
}

.marble-card .btn {
  margin-top: auto;
  padding: 10px 18px;
  font-size: 12px;
  letter-spacing: 1.2px;
  align-self: stretch;
}

/* ===================== EMPTY STATE ===================== */
.catalog-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-soft);
}

.catalog-empty p { font-size: 15px; }

/* ===================== BREAKPOINTS ===================== */
@media (max-width: 1024px) {
  .catalog-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}

@media (max-width: 820px) {
  .catalog-filters { top: var(--nav-h); padding: 16px 0; }
  .filter-row { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; padding: 2px 16px; margin: 0 -16px; }
  .filter-row::-webkit-scrollbar { display: none; }
  .filter-chip { flex-shrink: 0; padding: 8px 16px; font-size: 11.5px; }

  .catalog-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .catalog-section { padding: 40px 0 72px; }
  .page-hero { padding: 60px 0 48px; }
}

@media (max-width: 480px) {
  .catalog-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .marble-body { padding: 14px 14px 16px; }
  .marble-name { font-size: 18px; }
  .marble-cat { font-size: 9.5px; letter-spacing: 1.8px; margin-bottom: 12px; }
  .marble-card .btn { padding: 9px 14px; font-size: 11px; letter-spacing: 1px; }
}

@media (max-width: 340px) {
  .catalog-grid { grid-template-columns: 1fr; }
}