.shop-hero {
  padding: calc(var(--nav-height) + 3rem) 0 2.5rem;
  background: var(--forest-gradient);
  color: var(--cream);
  text-align: center;
}
.shop-hero .eyebrow { color: var(--gold-light); }
.shop-hero h1 { color: var(--cream); }

.filter-bar {
  background: var(--marble);
  border-bottom: 1px solid var(--border-hairline-light);
  position: sticky;
  top: var(--nav-height);
  z-index: 40;
  padding: 1.4rem 0;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.4rem 1.6rem;
  flex-wrap: wrap;
  margin-bottom: 0.7rem;
}
.filter-group:last-child { margin-bottom: 0; }

.filter-group .filter-label {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted-light);
  min-width: 5.5em;
}

.filter-tab {
  background: none;
  border: none;
  padding: 0.3em 0;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--text-muted-light);
  cursor: pointer;
  position: relative;
  transition: color var(--dur-fast) var(--ease-out);
}
.filter-tab::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: -3px;
  height: 1px;
  background: var(--gold-deep);
  transition: right var(--dur-med) var(--ease-out);
}
.filter-tab:hover { color: var(--text-on-light); }
.filter-tab.active { color: var(--text-on-light); font-weight: 500; }
.filter-tab.active::after { right: 0; }

.shop-grid-section {
  padding: clamp(3rem, 6vw, 4.5rem) 0 6rem;
  background: var(--marble);
}

.result-count {
  font-size: 0.85rem;
  color: var(--text-muted-light);
  margin-bottom: 1.75rem;
}

.product-grid.shop {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.25rem, 2vw, 2rem);
}

.product-grid.shop .product-card { color: var(--text-on-light); }
.product-grid.shop .product-card .p-name { color: var(--text-on-light); }
.product-grid.shop .product-card .p-price { color: var(--gold-deep); }
.product-grid.shop .product-card .thumb svg { filter: brightness(0) invert(1); opacity: 0.55; }

.product-card .view-details {
  display: inline-block;
  margin-top: 0.5em;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-deep);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.product-card:hover .view-details, .product-card:focus-visible .view-details {
  opacity: 1;
  transform: translateY(0);
}

.empty-state {
  text-align: center;
  padding: 4rem 0;
  color: var(--text-muted-light);
  display: none;
}
.empty-state.show { display: block; }

@media (max-width: 1024px) {
  .product-grid.shop { grid-template-columns: repeat(2, 1fr); }
}

/* ===================== Product Detail ===================== */

.product-detail {
  padding: calc(var(--nav-height) + 2.5rem) 0 6rem;
  background: var(--marble);
  display: none;
}
.product-detail.active { display: block; }
#shop-listing.hidden { display: none; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 2.5rem;
}
.back-link:hover { text-decoration: underline; }

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: flex-start;
}

.gallery-main {
  aspect-ratio: 3 / 4;
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.gallery-main .g-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-out);
}
.gallery-main .g-slide.active { opacity: 1; }
.gallery-main .g-slide img { width: 30%; filter: brightness(0) invert(1); opacity: 0.55; }
.gallery-main .g-caption {
  position: absolute;
  bottom: 1rem; left: 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245, 240, 230, 0.75);
}

.gallery-thumbs {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.9rem;
}
.gallery-thumbs button {
  flex: 1;
  aspect-ratio: 1;
  border: 1px solid var(--border-hairline-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  opacity: 0.6;
  transition: opacity var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.gallery-thumbs button.active, .gallery-thumbs button:hover { opacity: 1; border-color: var(--gold-deep); }

.detail-info .eyebrow { color: var(--gold-deep); }
.detail-info h1 { font-size: clamp(2rem, 3.4vw, 2.7rem); margin-bottom: 0.2em; }
.detail-info .price { font-size: 1.2rem; color: var(--gold-deep); margin-bottom: 1.5rem; }
.detail-info .description { color: var(--text-muted-light); max-width: 48ch; margin-bottom: 2rem; }

.size-selector { margin-bottom: 2rem; }
.size-selector .filter-label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted-light);
  margin-bottom: 0.75em;
}
.size-options { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.size-options button {
  width: 46px; height: 46px;
  border: 1px solid var(--border-hairline-light);
  background: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.size-options button.active { background: var(--forest-deep); color: var(--cream); border-color: var(--forest-deep); }
.size-options button:hover:not(.active) { border-color: var(--gold-deep); }

.detail-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.size-guide-link { display: inline-block; margin-top: 1rem; font-size: 0.8rem; color: var(--text-muted-light); }
.size-guide-link:hover { color: var(--gold-deep); }

@media (max-width: 720px) {
  .detail-grid { grid-template-columns: 1fr; }
}