/* Dynamic design accent — JS extracts the selected variant's ink/ribbon color
   and sets --accent on :root; crimson remains the default before/without JS. */
:root {
  --accent: var(--color-crimson);
  --accent-dark: var(--color-crimson-hover);
  --accent-soft: var(--color-crimson-light);
}

/* ==========================================================================
   LONGBOURN PAPERS — Product Detail Styles
   ========================================================================== */

.product-detail {
  padding: var(--space-3xl) 0 var(--section-gap);
}

.product-detail__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

/* ── Gallery ─────────────────────────────────────────────────────── */

.product-gallery {
  position: sticky;
  top: calc(72px + var(--space-xl));
}

.product-gallery__main {
  position: relative;
  overflow: hidden;
  background: var(--color-ivory);
  aspect-ratio: 1 / 1; /* match square photography */
  margin-bottom: var(--space-md);
  cursor: zoom-in;
}

.product-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.product-gallery__thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: var(--space-sm);
}

.product-gallery__thumb {
  aspect-ratio: 1;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}

.product-gallery__thumb.is-active,
.product-gallery__thumb:hover {
  opacity: 1;
  border-color: var(--accent);
}

.product-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Product info ────────────────────────────────────────────────── */

.product-info {
  padding-top: var(--space-md);
}

.product-info__eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.product-info__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-md);
}

.product-info__price {
  font-size: var(--text-xl);
  color: var(--color-charcoal);
  margin-bottom: var(--space-xl);
}

.product-info__price .compare-price {
  text-decoration: line-through;
  color: var(--color-stone);
  margin-right: var(--space-sm);
  font-size: var(--text-lg);
}

/* Variant selector */
.variant-selector {
  margin-bottom: var(--space-xl);
}

.variant-selector__label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-charcoal);
  margin-bottom: var(--space-sm);
}

.variant-selector__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.variant-option {
  padding: var(--space-sm) var(--space-lg);
  border: var(--border-thin);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.variant-option:hover {
  border-color: var(--color-charcoal);
}

.variant-option.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: var(--weight-medium);
}

.variant-option.is-unavailable {
  opacity: 0.4;
  cursor: not-allowed;
  text-decoration: line-through;
}

/* Quantity + Add to Cart */
.product-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.qty-selector {
  display: flex;
  align-items: center;
  border: var(--border-thin);
}

.qty-selector__btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-charcoal);
  transition: background var(--duration-fast);
}

.qty-selector__btn:hover {
  background: var(--color-ivory);
}

.qty-selector__value {
  width: 48px;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border-left: var(--border-thin);
  border-right: var(--border-thin);
  padding: var(--space-sm) 0;
}

.product-actions .btn {
  flex: 1;
  height: 44px;
}

/* Product description */
.product-description {
  margin-bottom: var(--space-2xl);
  color: var(--color-charcoal);
  line-height: var(--leading-relaxed);
}

.product-description h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
}

/* Product specs */
.product-specs {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-sm) var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-ivory);
  font-size: var(--text-sm);
  margin-bottom: var(--space-2xl);
}

.product-specs dt {
  font-weight: var(--weight-medium);
  color: var(--color-charcoal);
}

.product-specs dd {
  color: var(--color-slate);
}

/* Related products */
.related-products {
  padding: var(--section-gap) 0;
  border-top: var(--border-thin);
}

.related-products__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

/* ── Responsive ──────────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .product-detail__layout {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .product-gallery {
    position: static;
  }
}

/* Add to Cart takes the design's ink color */
.product-detail .btn--primary,
#addToCart {
  background: var(--accent);
  border-color: var(--accent);
  transition: background .35s ease, border-color .35s ease;
}
.product-detail .btn--primary:hover,
#addToCart:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

/* ── Modern pill selector (design row scrolls; selected pill takes the accent) ── */
.vsel-row { margin-bottom: 16px; }
.vsel-label {
  display: block; font-family: var(--font-body);
  font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--color-slate, #6F6F68); margin-bottom: 8px;
}
.variant-pills {
  display: flex; gap: 8px; overflow-x: auto;
  scroll-snap-type: x proximity; -webkit-overflow-scrolling: touch;
  scrollbar-width: none; padding: 2px 2px 6px; margin: 0 -2px;
}
.variant-pills::-webkit-scrollbar { display: none; }
.variant-pills--static { overflow-x: visible; flex-wrap: wrap; }
.vpill {
  flex: 0 0 auto; scroll-snap-align: start;
  font-family: var(--font-body); font-size: 12.5px; letter-spacing: .02em;
  padding: 9px 15px; border-radius: 999px;
  border: 1px solid var(--color-linen, #DDD6C8); background: #fff;
  color: var(--color-ink); cursor: pointer; white-space: nowrap;
  transition: border-color .25s, background .25s, color .25s;
}
.vpill:hover { border-color: var(--accent); }
.vpill.is-selected { background: var(--accent); border-color: var(--accent); color: #fff; }
.vpill.is-unavailable { opacity: .4; cursor: default; text-decoration: line-through; }