/* ─────────────────────────────────────────
   pages/product-detail.css — Hidden in Numbers
   Single product detail page
───────────────────────────────────────── */

/* ════════════════════════════════════════
   PRODUCT DETAIL LAYOUT
════════════════════════════════════════ */
.product-detail {
  display: grid;
  grid-template-columns: 60fr 40fr;
  min-height: calc(100vh - var(--nav-height));
  padding-top: var(--nav-height);
}

/* ── LEFT: Gallery ── */
.detail-gallery {
  position: sticky;
  top: var(--nav-height);
  height: calc(100vh - var(--nav-height));
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--color-border);
  overflow: hidden;
}

.gallery-main {
  flex: 1;
  overflow: hidden;
  position: relative;
  background: var(--color-surface);
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: opacity 0.4s var(--ease);
}

.gallery-main img.switching {
  opacity: 0;
}

/* Thumbnails strip */
.gallery-thumbs {
  display: flex;
  gap: 1px;
  background: var(--color-border);
  height: 100px;
  flex-shrink: 0;
  overflow-x: auto;
  scrollbar-width: none; /* Firefox */
}
.gallery-thumbs::-webkit-scrollbar { display: none; }

.gallery-thumb {
  flex: 0 0 80px; /* fixed width, never shrink */
  overflow: hidden;
  cursor: none;
  background: var(--color-surface);
  position: relative;
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s var(--ease), opacity 0.3s;
  opacity: 0.5;
}

.gallery-thumb:hover img { opacity: 0.8; transform: scale(1.05); }
.gallery-thumb.active img { opacity: 1; }

.gallery-thumb::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}
.gallery-thumb.active::after { transform: scaleX(1); }

/* ── GENDER TOGGLE ── */
.gender-toggle-tabs {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  width: fit-content;
  margin-bottom: var(--space-6);
}

.gender-tab {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--color-text-mid);
  text-transform: uppercase;
  padding: 8px 20px;
  background: transparent;
  cursor: none;
  border-right: 1px solid var(--color-border);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.gender-tab:last-child { border-right: none; }
.gender-tab:hover { color: var(--color-white); }
.gender-tab.active {
  color: var(--color-black);
  background: var(--color-accent);
}

/* ── RIGHT: Product Info ── */
.detail-info {
  padding: clamp(2rem, 5vh, 4rem) clamp(2rem, 4vw, 3.5rem);
  border-left: 1px solid var(--color-border);
  overflow-y: auto;
  max-height: calc(100vh - var(--nav-height));
}

.detail-type-tag {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--color-text-mid);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.detail-name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  line-height: 0.95;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

.detail-code {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-8);
}

.detail-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-8) 0;
}

.detail-description {
  font-size: var(--text-sm);
  line-height: 2;
  color: var(--color-text-mid);
  margin-bottom: var(--space-8);
}

/* Decode box */
.decode-box {
  border: 1px solid var(--color-accent-border);
  padding: 1.5rem;
  margin-bottom: var(--space-8);
  position: relative;
}

.decode-box::before {
  content: attr(data-label);
  position: absolute;
  top: -1px;
  left: 1.5rem;
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  background: var(--color-black);
  padding: 0 6px;
  transform: translateY(-50%);
}

.decode-box-content {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 2;
  color: var(--color-text-main);
  white-space: pre-line;
}

/* Product details list */
.detail-specs {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.spec-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-4);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
}

.spec-label {
  color: var(--color-text-dim);
  text-transform: uppercase;
}

.spec-value {
  color: var(--color-text-main);
}

/* CTA */
.detail-cta {
  display: block;
  width: 100%;
  text-align: center;
  padding: 1rem;
  border: 1px solid var(--color-accent-border);
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--color-white);
  text-transform: uppercase;
  cursor: none;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}
.detail-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
  z-index: -1;
}
.detail-cta:hover {
  color: var(--color-black);
  border-color: var(--color-accent);
}
.detail-cta:hover::before { transform: scaleX(1); }

/* ── RELATED PRODUCTS ── */
.related-section {
  border-top: 1px solid var(--color-border);
  padding: clamp(3rem, 6vh, 5rem) var(--container-pad);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  margin-top: var(--space-8);
}

.related-grid .product-image {
  aspect-ratio: 4 / 5;
  min-height: unset;
}

/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width: 1024px) {
  .product-detail {
    grid-template-columns: 1fr;
  }
  .detail-gallery {
    position: relative;
    top: 0;
    height: 70vw;
    max-height: 600px;
  }
  .detail-info {
    border-left: none;
    border-top: 1px solid var(--color-border);
    max-height: none;
    overflow-y: visible;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .gallery-thumbs { height: 70px; }
  .related-grid { grid-template-columns: 1fr; }
}