/* ==================== BREADCRUMB ==================== */
.breadcrumb {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb span {
  color: var(--text-dark);
  font-weight: 500;
}

.breadcrumb svg {
  color: var(--text-light);
}

/* ==================== PRODUCT DETAIL ==================== */
.product-detail {
  padding: 40px 0 0;
}

/* TOP: Info row */
.product-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: flex-start;
  margin-bottom: 40px;
}

.product-top-left h1 {
  font-size: 2.4rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 12px 0;
  line-height: 1.1;
}

.product-desc {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 1rem;
  max-width: 520px;
}

.product-pricing {
  margin-bottom: 16px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.price-current {
  font-size: 1.8rem;
  font-weight: 500;
}

.price-old {
  font-size: 1rem;
  color: var(--text-light);
  text-decoration: line-through;
}

.product-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.product-actions .btn-primary {
  background: var(--primary);
  font-size: 0.9rem;
  padding: 14px 28px;
}

.product-actions .btn-outline {
  font-size: 0.9rem;
  padding: 14px 28px;
}

.product-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.meta-item {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

.meta-label {
  display: block;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-light);
  margin-bottom: 2px;
}

.meta-value {
  font-weight: 500;
  font-size: 0.82rem;
}

/* BOTTOM: Images */
.product-images-full {
  max-width: 80%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
}

.product-images-full .product-main-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

.img-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-md);
  color: var(--text-dark);
}

.img-nav:hover {
  background: white;
  box-shadow: var(--shadow-lg);
  transform: translateY(-50%) scale(1.05);
}

.img-nav-prev {
  left: 16px;
}

.img-nav-next {
  right: 16px;
}

.product-img-placeholder {
  width: 100%;
  display: block;
  object-fit: cover;
}

.product-images-full .product-thumbnails {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  overflow: hidden;
}

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

.thumb.active {
  border-color: var(--primary);
}

.thumb:hover {
  opacity: 0.8;
}

/* ==================== DETAILS SECTION ==================== */
.product-details-section {
  padding: 60px 0;
  background: var(--bg-light);
}

.details-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.details-left h2 {
  font-size: 1.6rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.details-left p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.details-checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.details-checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
}

.features-card {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
}

.features-card h3 {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 24px;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature-item h4 {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 6px;
}

.feature-item p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==================== SIMILAR PRODUCTS ==================== */
.similar-products {
  padding: 60px 0;
}

.similar-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}

.similar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .product-top { grid-template-columns: 1fr; gap: 24px; }
  .product-top-left h1 { font-size: 1.8rem; }
  .product-actions { flex-direction: column; }
  .product-images-full { max-width: 100%; padding: 0 16px; grid-template-columns: 1fr; }
  .product-images-full .product-thumbnails { flex-direction: row; order: 2; }
  .product-images-full .product-main-img { order: 1; }
  .details-layout { grid-template-columns: 1fr; }
  .similar-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
}