/* ============================================
   Product Page Styles — autofinessepraha.cz
   Sdílené styly pro všechny produktové stránky
   ============================================ */

.product-hero {
  padding: 120px 0 60px;
}
.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.product-gallery {
  position: sticky;
  top: 100px;
}
.product-gallery-main {
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--dark-surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  margin-bottom: 12px;
}
.product-gallery-main img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.product-gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.product-thumb {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--dark-surface);
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition);
}
.product-thumb:hover,
.product-thumb.active {
  border-color: var(--primary);
}
.product-thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.product-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.product-brand-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
}
.product-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.2;
}
.product-short-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
}
.product-price-block {
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.product-current-price {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--text-primary);
}
.product-original-price {
  font-size: 1.1rem;
  color: var(--text-muted);
  text-decoration: line-through;
}
.product-discount-badge {
  display: inline-flex;
  padding: 4px 12px;
  background: rgba(255, 77, 0, 0.15);
  color: var(--primary);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
}
.product-stock {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}
.product-stock .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
}
.product-stock.low .dot {
  background: var(--accent-yellow);
}
.product-stock.out .dot {
  background: #ff4444;
}
.product-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.product-buy-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 32px;
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition);
}
.product-buy-btn:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 77, 0, 0.35);
}
.product-store-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 700;
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition);
}
.product-store-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.product-params {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.product-param {
  padding: 14px 20px;
  background: var(--dark-surface);
}
.product-param-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.product-param-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}
.product-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.product-tab {
  padding: 14px 24px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.product-tab:hover {
  color: var(--text-secondary);
}
.product-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.tab-content {
  display: none;
}
.tab-content.active {
  display: block;
}
.tab-content p {
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}
.tab-content h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}
.tab-content ol, .tab-content ul {
  color: var(--text-secondary);
  margin: 12px 0 20px 20px;
}
.tab-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}
.tab-content strong {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .product-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .product-gallery {
    position: static;
  }
  .product-params {
    grid-template-columns: 1fr;
  }
}