/* Detail, product, and article page styles */
.btn,
.cart-btn {
  display: inline-block;
  background-color: var(--success);
  color: var(--text-inverse);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn:hover,
.cart-btn:hover {
  background-color: var(--success-hover);
}

.news-link {
  display: inline-block;
  background-color: var(--accent);
  color: var(--text-inverse);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: background-color 0.3s, box-shadow 0.3s;
}

.news-link:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 2px 8px var(--shadow-color);
}

.back-btn {
  display: inline-flex;
  align-items: center;
  color: var(--accent);
  text-decoration: none;
  margin-bottom: 1.5rem;
  font-weight: 500;
  transition: color 0.3s;
}

.back-btn:hover {
  color: var(--accent-hover);
}

.back-btn svg {
  margin-right: 0.5rem;
}

.product-page {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background-color: var(--surface-bg);
  color: var(--text-muted);
  border-radius: 10px;
  box-shadow: 0 0 20px var(--shadow-color);
  overflow: hidden;
  margin-bottom: 2rem;
}

.product-gallery {
  padding: 2rem;
  background-color: var(--surface-bg);
}

.main-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  margin-bottom: 1rem;
  box-shadow: 0 2px 5px var(--shadow-color);
}

.thumbnail-row {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

.thumbnail {
  width: 80px;
  height: 80px;
  border-radius: 4px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.3s;
}

.thumbnail:hover,
.thumbnail.active {
  border-color: var(--accent);
}

.product-details {
  padding: 2rem;
}

.product-category {
  display: inline-block;
  background-color: var(--accent);
  color: var(--text-inverse);
  border-radius: 50px;
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

.product-title,
.specs-title,
.related-title {
  color: var(--text-primary);
}

.product-title {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.product-price,
.related-price {
  color: var(--danger);
  font-weight: 500;
}

.product-price {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.product-rating {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.stars {
  color: var(--warning);
  margin-right: 0.5rem;
}

.review-count {
  color: var(--text-subtle);
  font-size: 0.9rem;
}

.product-description {
  margin-bottom: 1.5rem;
  color: var(--text-muted);
}

.specs-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.specs-list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.specs-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
}

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

.spec-name {
  font-weight: 600;
  width: 40%;
}

.add-to-cart,
.quantity {
  display: flex;
  align-items: center;
}

.add-to-cart {
  margin-top: 1.5rem;
}

.quantity {
  margin-right: 1rem;
}

.quantity-btn,
.quantity-input {
  height: 36px;
  border-radius: 4px;
}

.quantity-btn {
  width: 36px;
  background-color: var(--surface-bg-alt);
  color: var(--text-primary);
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.quantity-input {
  width: 50px;
  text-align: center;
  color: var(--input-text);
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  margin: 0 0.5rem;
}

.cart-btn {
  display: flex;
  align-items: center;
}

.cart-btn svg {
  margin-right: 0.5rem;
}

.related-products {
  margin-top: 3rem;
}

.related-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
}

.related-card {
  background-color: var(--surface-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 20px var(--shadow-color);
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

.related-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 20px var(--shadow-color-strong);
}

.related-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.related-info {
  padding: 1rem;
}

.related-name {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

@media (max-width: 768px) {
  .product-page {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
}