.product-breadcrumb { border-bottom: 1px solid var(--is-line); padding: 1rem 0; font-size: 0.78rem; color: var(--is-grey); }
.product-breadcrumb a { color: var(--is-grey); }
.product-breadcrumb a:hover { color: var(--is-red); }

.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding-top: 3rem;
}

/* ---- Gallery ---- */
.gallery-main {
  aspect-ratio: 1/1;
  background: var(--is-offwhite);
  border: 1px solid var(--is-line);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  margin-bottom: 0.75rem;
}
.gallery-main img { width: 100%; height: 100%; object-fit: contain; }
.gallery-main .no-image { color: var(--is-grey); font-family: var(--font-mono); font-size: 0.85rem; }
.gallery-thumbs { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.gallery-thumb {
  width: 64px; height: 64px; border: 1.5px solid var(--is-line); border-radius: var(--radius);
  overflow: hidden; cursor: pointer; background: var(--is-offwhite); padding: 0;
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: contain; }
.gallery-thumb.active { border-color: var(--is-red); }

/* ---- Info panel ---- */
.product-info-brand { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.product-info h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0.5rem 0 0.3rem; }
.product-info-sku { font-family: var(--font-mono); font-size: 0.8rem; color: var(--is-grey); display: block; margin-bottom: 0.75rem; }

.stock-badge {
  display: inline-block; font-size: 0.78rem; font-weight: 700;
  padding: 0.3rem 0.7rem; border-radius: 999px; margin-bottom: 1.25rem;
}
.stock-badge.in-stock { background: #E7F5EA; color: #1E7A34; }
.stock-badge.lead-time { background: #FFF3CD; color: #8A6D00; }

.clearance-notice {
  background: #FCE4E4; border: 1px solid #F3B8BE; border-radius: var(--radius);
  padding: 0.85rem 1.1rem; margin-bottom: 1.5rem;
}
.clearance-notice strong { color: var(--is-red-dark); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
.clearance-notice p { margin: 0.35rem 0 0; font-size: 0.88rem; color: var(--is-black); }

.related-heading {
  font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 3rem 0 1.5rem;
  border-top: 1px solid var(--is-line); padding-top: 2.5rem;
}

/* ---- Image lightbox ---- */
.lightbox-overlay {
  display: none; position: fixed; inset: 0; background: rgba(25,23,28,0.92);
  z-index: 300; align-items: center; justify-content: center; padding: 2rem;
  cursor: zoom-out;
}
.lightbox-overlay.open { display: flex; }
.lightbox-overlay img { max-width: 90vw; max-height: 90vh; object-fit: contain; }
.lightbox-close {
  position: absolute; top: 1.5rem; right: 1.5rem; background: none; border: none;
  color: white; font-size: 2.2rem; line-height: 1; cursor: pointer;
}
.lightbox-close:hover { color: var(--is-red); }

.price-block {
  border: 1px solid var(--is-line); border-radius: var(--radius);
  padding: 1.25rem 1.5rem; margin-bottom: 1.5rem;
  background: var(--is-offwhite);
}
.price-block .price-value { font-size: 1.6rem; }
.price-block .price-locked { font-size: 1rem; }

.cta-row { display: flex; gap: 0.85rem; flex-wrap: wrap; margin-bottom: 2rem; }

.info-section { margin-bottom: 1.75rem; }
.info-section h3 {
  font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--is-grey); margin-bottom: 0.6rem; font-weight: 500;
}
.info-section p { line-height: 1.65; margin: 0; }
.tag-list { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.tag-chip {
  font-size: 0.75rem; padding: 0.3rem 0.7rem; border-radius: 999px;
  background: var(--is-offwhite); border: 1px solid var(--is-line); color: var(--is-grey);
}
.manual-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; color: var(--is-black); border: 1.5px solid var(--is-black);
  border-radius: var(--radius); padding: 0.9rem 1.9rem; font-size: 1rem;
}
.manual-link:hover { background: var(--is-black); color: var(--is-white); }

@media (max-width: 800px) {
  .product-layout { grid-template-columns: 1fr; }
}