.product-page {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
  padding-block: var(--space-lg);
}

@media (min-width: 768px) {
  .product-page {
    grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
    gap: var(--space-xl);
  }
}

/* Gallery */

.product-page__gallery {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

@media (min-width: 1024px) {
  .product-page__gallery {
    position: sticky;
    top: var(--space-md);
    align-self: start;
  }
}

.product-page__main-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-soft);
  display: block;
}

.product-page__main-image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.product-page__thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding: 0;
  margin: 0;
  list-style: none;
}

.product-page__thumb {
  width: 72px;
  height: 72px;
  padding: 0;
  background: var(--color-bg-soft);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.product-page__thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.product-page__thumb:hover {
  border-color: var(--color-primary-soft);
}

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

/* Info */

.product-page__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.product-page__brand {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.product-page__brand a {
  color: inherit;
  text-decoration: none;
}

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

.product-page__title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 500;
  line-height: 1.2;
  margin: 0;
  color: var(--color-text);
}

.product-page__price {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
}

.product-page__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.product-page__cta {
  margin-block: var(--space-md);
}

.product-page__cta--added {
  animation: product-page-pulse 400ms ease;
}

@keyframes product-page-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

.product-page__specs {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: var(--space-sm) var(--space-md);
  margin: 0;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.product-page__specs dt {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.product-page__specs dd {
  margin: 0;
  color: var(--color-text);
}

.product-page__description {
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
  white-space: pre-line;
}

.product-page__advantages {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.product-page__advantages-title,
.product-page__usage-title {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.125rem;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.product-page__advantages-list {
  list-style: disc;
  padding-left: var(--space-md);
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.product-page__advantages-list li {
  margin-bottom: var(--space-xs);
}

.product-page__usage-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.product-page__usage {
  white-space: pre-line;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* States */

.product-page__status {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
}

.product-page--loading .product-page__title,
.product-page--loading .product-page__price,
.product-page--loading .product-page__brand {
  background: var(--color-bg-soft);
  color: transparent;
  border-radius: var(--radius-sm);
  min-height: 1.25em;
}

.product-page--loading .product-page__main-image {
  background: var(--color-bg-soft);
}

/* Related */

.product-related {
  border-top: 1px solid var(--color-border);
}

.product-related h2 {
  margin-block: var(--space-lg) var(--space-md);
}