/* ==========================================================================
   Products Page
   ========================================================================== */

/* --- Filter bar --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  border: 1px solid var(--text-secondary);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font-main);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.filter-btn:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: #fff;
}

/* --- Product grid --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
}

/* --- Product card --- */
.product-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  box-shadow: var(--glass-highlight), 0 4px 16px var(--shadow-color);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-primary-rgb), 0.2);
  box-shadow: 0 12px 40px var(--shadow-color);
}

.product-card.expanded {
  grid-column: 1 / -1;
}

.product-card-img {
  width: 100%;
  height: 220px;
  display: block;
  background: transparent; /* Transparent background for the model */
  border-bottom: 1px solid var(--border-color);
  --poster-color: var(--bg-card);
}

/* Custom styles for the 3D model viewer loading state */
.product-card-img::part(poster) {
  background-color: var(--bg-card);
  background-size: 50%;
  background-repeat: no-repeat;
  background-position: center;
}

/* --- Image wrapper with stock badge --- */
.product-card-img-wrap {
  position: relative;
}

.product-stock-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.25rem 0.7rem;
  border-radius: 50px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  line-height: 1;
  z-index: 2;
}

.product-stock-badge.stock-in {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.product-stock-badge.stock-out {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.product-stock-badge.stock-other {
  background: rgba(234, 179, 8, 0.15);
  color: #ca8a04;
  border: 1px solid rgba(234, 179, 8, 0.3);
}

.product-card-body {
  padding: 1.5rem;
}

/* --- Category + supplier meta row --- */
.product-card-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.product-card-meta .product-card-type {
  margin-bottom: 0;
}

.product-card-supplier {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  background: rgba(100, 140, 180, 0.1);
  color: #6b8fad;
  border: 1px solid rgba(100, 140, 180, 0.3);
}

.product-card-type {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-secondary);
  margin-bottom: 0.5rem;
}

.product-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.product-card-price {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: 1rem;
}

.product-card-sensors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.sensor-chip {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: rgba(var(--accent-primary-rgb), 0.1);
  color: var(--accent-primary);
  border: 1px solid rgba(var(--accent-primary-rgb), 0.15);
  font-weight: 500;
}

.product-card-apps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.app-tag {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: rgba(var(--accent-secondary-rgb), 0.1);
  color: var(--accent-secondary);
  border: 1px solid rgba(var(--accent-secondary-rgb), 0.15);
  font-weight: 500;
}

.product-card-actions {
  display: flex;
  gap: 0.5rem;
}

.product-card-actions .btn-primary,
.product-card-actions .btn-secondary {
  font-size: 0.8rem;
  padding: 0.55rem 1.2rem;
}

/* --- Product detail expansion --- */
.product-detail {
  display: none;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.product-card.expanded .product-detail {
  display: block;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

/* --- Image gallery (replaces model-viewer in detail) --- */
.product-gallery {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.gallery-main {
  position: relative;
  width: 100%;
  height: 350px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-main-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  padding: 1rem;
}

.gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.7;
  transition: opacity var(--transition), background var(--transition);
  z-index: 2;
}

.gallery-nav:hover {
  opacity: 1;
  background: var(--bg-secondary);
}

.gallery-prev { left: 0.5rem; }
.gallery-next { right: 0.5rem; }

.gallery-counter {
  position: absolute;
  bottom: 0.5rem;
  right: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-card);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.gallery-thumbs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
}

.gallery-thumb {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 6px;
  border: 2px solid var(--border-color);
  cursor: pointer;
  opacity: 0.5;
  transition: opacity var(--transition), border-color var(--transition);
  flex-shrink: 0;
}

.gallery-thumb:hover {
  opacity: 0.8;
}

.gallery-thumb.active {
  opacity: 1;
  border-color: var(--accent-primary);
}

.product-specs-table {
  width: 100%;
  border-collapse: collapse;
}

.product-specs-table tr {
  border-bottom: 1px solid var(--border-color);
}

.product-specs-table td {
  padding: 0.6rem 0;
  font-size: 0.85rem;
}

.product-specs-table td:first-child {
  color: var(--text-muted);
  font-weight: 500;
  width: 40%;
}

.product-specs-table td:last-child {
  color: var(--text-primary);
}

.product-detail-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.product-detail-links .btn-primary,
.product-detail-links .btn-secondary {
  font-size: 0.8rem;
  padding: 0.55rem 1.2rem;
}