.product-detail {
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
}

.product-detail__back {
  display: inline-block;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  text-decoration: none;
}

.product-detail__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.product-detail__gallery {
  min-width: 0;
  overflow: hidden;
}

.product-detail__main-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  background: var(--color-border);
}

.product-detail__thumbs {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.product-detail__thumb {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.15s;

  &.active,
  &:hover {
    opacity: 1;
    border-color: var(--color-primary);
  }
}

.product-detail__price {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.product-detail__label {
  display: block;
  margin: var(--space-sm) 0;
  font-weight: 500;

  & select,
  & input {
    display: block;
    margin-top: var(--space-xs);
  }
}

.product-detail__metadata {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xs) var(--space-md);
  margin: var(--space-md) 0;
  font-size: var(--text-sm);

  & dt {
    font-weight: 600;
    color: var(--color-text-muted);
  }

  & dd {
    margin: 0;
  }
}

.product-detail__qty {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.product-detail__added {
  display: block;
  color: var(--color-success);
  font-weight: 600;
  padding: var(--space-sm) 0;
  animation: fade-in 0.2s ease-in;
}

/* Responsive */
@media (width <= 640px) {
  .product-detail__layout {
    grid-template-columns: 1fr;
  }
}