/* ============================================
   PANPRUKSA — Products Page Styles
   ============================================ */

/* --- Product Category Cards --- */
.product-category-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 2px;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: var(--transition);
}

.product-category-card:nth-child(even) {
  direction: rtl;
}

.product-category-card:nth-child(even) > * {
  direction: ltr;
}

.product-category-img {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.product-category-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.product-category-card:hover .product-category-img img {
  transform: scale(1.03);
}

.product-category-info {
  padding: clamp(2rem, 4vw, 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--bg-gray);
}

.product-category-card:nth-child(odd) .product-category-info {
  background: var(--white);
}

.product-category-info h3 {
  margin: 0.5rem 0 1rem;
}

.product-category-info p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.product-category-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.product-category-specs span {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--warm-gray);
  color: var(--text-muted);
}

/* --- Product Detail Page --- */
.product-hero-strip {
  background: var(--dark-bg);
  color: var(--white);
  padding: 8rem 0 3rem;
}

.product-hero-strip .label {
  color: var(--copper);
}

/* --- Tab System --- */
.product-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--warm-gray);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.product-tabs button {
  flex-shrink: 0;
  padding: 1rem 2rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
  transition: color 0.3s ease;
}

.product-tabs button.active {
  color: var(--black);
}

.product-tabs button::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--copper);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.product-tabs button.active::after {
  transform: scaleX(1);
}

.tab-panel {
  display: none;
  padding-top: 3rem;
}

.tab-panel.active {
  display: block;
}

/* --- Product Detail Layout --- */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

.product-gallery {
  position: sticky;
  top: 6rem;
}

.product-gallery-main {
  aspect-ratio: 4/3;
  overflow: hidden;
  margin-bottom: 0.75rem;
  background: var(--light-gray);
}

.product-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s ease;
}

.product-gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.product-gallery-thumbs img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.3s ease;
  border: 2px solid transparent;
}

.product-gallery-thumbs img.active,
.product-gallery-thumbs img:hover {
  opacity: 1;
  border-color: var(--copper);
}

/* --- Spec Table --- */
.spec-table {
  width: 100%;
  margin: 1.5rem 0;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--light-gray);
  font-size: 0.95rem;
}

.spec-row:last-child {
  border-bottom: none;
}

.spec-label {
  color: var(--text-muted);
  font-weight: 300;
}

.spec-value {
  font-weight: 400;
  text-align: right;
}

/* --- Color Swatches --- */
.color-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.color-swatch {
  text-align: center;
}

.color-swatch-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin: 0 auto 0.4rem;
  border: 2px solid rgba(0,0,0,0.08);
  transition: transform 0.3s ease;
}

.color-swatch-circle:hover {
  transform: scale(1.15);
}

.color-swatch span {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* --- Kit Components --- */
.kit-list {
  list-style: none;
  padding: 0;
}

.kit-list li {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--light-gray);
  font-size: 0.9rem;
}

.kit-list li:last-child { border-bottom: none; }

.kit-label { color: var(--text-muted); }
.kit-value { font-weight: 400; }

/* --- Flooring Spec Cards --- */
.flooring-card {
  background: var(--white);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  transition: box-shadow 0.3s ease;
}

.flooring-card:hover {
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.flooring-card h4 {
  margin-bottom: 0.5rem;
}

.flooring-card .subtitle {
  font-size: 0.8rem;
  color: var(--copper);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.flooring-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .product-category-card {
    grid-template-columns: 1fr;
  }
  .product-category-card:nth-child(even) {
    direction: ltr;
  }
  .product-detail-grid {
    grid-template-columns: 1fr;
  }
  .product-gallery {
    position: static;
  }
}