/* Estructura y estilos de la página de detalle de producto */
.product-detail {
  --detail-radius: 0.375rem;

  width: 100%;
  padding: 2rem 0 4.5rem;
  background-color: var(--bg);
  box-sizing: border-box;
}

.product-detail__container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.5rem;
  box-sizing: border-box;
}

/* Migas de pan */
.product-detail__breadcrumbs {
  margin-bottom: 1.75rem;
}

.product-detail__breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-detail__breadcrumbs-item {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-xs);
  line-height: 1.3;
}

.product-detail__breadcrumbs-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--text-muted);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s ease;
}

.product-detail__breadcrumbs-link:hover {
  color: var(--primary);
}

.product-detail__breadcrumbs-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  line-height: 1;
}

.product-detail__breadcrumbs-separator {
  display: inline-flex;
  align-items: center;
  color: var(--border);
}

.product-detail__breadcrumbs-separator i {
  font-size: var(--fs-sm);
  line-height: 1;
}

.product-detail__breadcrumbs-item--current {
  max-width: fit-content;
  overflow: hidden;
  color: var(--text);
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Layout principal de 2 columnas */
.product-detail__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
}

@media (min-width: 992px) {
  .product-detail__layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 2rem;
  }
}

/* Columna izquierda unificada en un solo bloque */
.product-detail__content-col {
  display: flex;
  flex-direction: column;
  padding: 2rem;
  background-color: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--detail-radius);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  box-sizing: border-box;
  min-width: 0;
}

/* Sub-grilla superior: portada al lado de la metadata */
.product-detail__hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
  padding-bottom: 2.25rem;
  border-bottom: 1px solid var(--border);
}

@media (min-width: 640px) {
  .product-detail__hero-grid {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 2rem;
  }
}

@media (min-width: 1200px) {
  .product-detail__hero-grid {
    grid-template-columns: 270px minmax(0, 1fr);
  }
}

/* Portada del libro */
.product-detail__media {
  width: 100%;
  min-width: 0;
}

.product-detail__media-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1 / 1.45;
  padding: 0.5rem;
  overflow: hidden;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  box-sizing: border-box;
}

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

/* Datos principales superiores */
.product-detail__main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.product-detail__category {
  margin: 0 0 0.625rem;
}

.product-detail__category-link {
  display: inline-flex;
  align-items: center;
  height: 1.375rem;
  padding: 0.125rem 0.625rem;
  color: var(--primary);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  background-color: var(--primary-subtle);
  border-radius: 0.25rem;
  transition: background-color 0.15s ease;
}

.product-detail__category-link:hover {
  background-color: var(--border-light);
}

.product-detail__title {
  margin: 0 0 0.625rem;
  color: var(--text);
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.product-detail__meta-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 0.75rem;
}

.product-detail__meta-row {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.4;
}

.product-detail__meta-label {
  color: var(--text-muted);
  font-weight: 400;
}

.product-detail__meta-value {
  color: var(--text);
  font-weight: 600;
}

.product-detail__author-link {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

.product-detail__author-link:hover {
  color: var(--primary-hover);
}

/* Fila de valoración y estrellas */
.product-detail__rating-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.product-detail__rating-stars {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
}

.product-detail__star {
  font-size: var(--fs-sm);
  line-height: 1;
}

.product-detail__star--filled,
.product-detail__star--half {
  color: var(--accent);
}

.product-detail__star--empty {
  color: var(--border);
}

.product-detail__rating-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  color: var(--text-muted);
  font-size: var(--fs-xs);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s ease;
}

.product-detail__rating-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

.product-detail__rating-avg {
  color: var(--text);
  font-weight: 700;
}

.product-detail__rating-count {
  color: var(--text-muted);
}

.product-detail__rating-empty {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Extracto breve de sinopsis */
.product-detail__excerpt {
  margin-bottom: 1.25rem;
}

.product-detail__excerpt-text {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.product-detail__read-more-link {
  display: inline-block;
  margin-left: 0.375rem;
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s ease;
}

.product-detail__read-more-link:hover {
  color: var(--primary-hover);
}

/* Contenedor y ficha sintetizada de atributos rápidos */
.product-detail__quick-specs-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.product-detail__quick-specs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  background-color: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 0.25rem;
}

.product-detail__quick-spec {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  min-width: 0;
}

.product-detail__quick-spec-icon {
  font-size: var(--fs-lg);
  color: var(--primary);
  flex-shrink: 0;
}

.product-detail__quick-spec-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.product-detail__quick-spec-label {
  font-size: var(--fs-2xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.product-detail__quick-spec-value {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Enlace hacia ficha técnica completa */
.product-detail__specs-anchor-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.25rem;
  color: var(--text-muted);
  font-size: var(--fs-xs);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s ease;
}

.product-detail__specs-anchor-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

.product-detail__specs-anchor-link i {
  font-size: var(--fs-sm);
  line-height: 1;
}

/* Columna lateral derecha sticky con despeje para cabecera fija */
.product-detail__sidebar {
  width: 100%;
  min-width: 0;
}

@media (min-width: 992px) {
  .product-detail__sidebar {
    position: sticky;
    top: calc(var(--site-header-height, 7.5rem) + 1.25rem);
    z-index: 10;
  }
}

/* Secciones internas: Sinopsis y Ficha técnica */
.product-detail__details {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
  padding-top: 2.25rem;
}

.product-detail__section {
  display: flex;
  flex-direction: column;
  width: 100%;
}

#sinopsis-producto,
#especificaciones-producto {
  scroll-margin-top: calc(var(--site-header-height, 7.5rem) + 1.5rem);
}

.product-detail__specs-wrapper {
  padding-top: 2.25rem;
  border-top: 1px solid var(--border);
}

.product-detail__section-heading {
  margin-bottom: 1rem;
}

.product-detail__section-eyebrow {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--primary);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.product-detail__section-title {
  margin: 0;
  color: var(--text);
  font-size: var(--fs-lg);
  font-weight: 700;
  line-height: 1.3;
}

.product-detail__description {
  width: 100%;
  color: var(--text);
  font-size: var(--fs-sm);
  line-height: 1.7;
  box-sizing: border-box;
}

.product-detail__description p {
  margin: 0 0 1rem;
}

.product-detail__description p:last-child {
  margin-bottom: 0;
}

.product-detail__description a {
  color: var(--primary);
  text-decoration: underline;
}

/* Secciones inferiores a ancho completo */
.product-detail__related,
.product-detail__reviews {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  width: 100%;
  margin-top: 2rem;
}

/* Responsividad */
@media (max-width: 767px) {
  .product-detail {
    padding: 1.5rem 0 3rem;
  }

  .product-detail__container {
    padding: 0 1rem;
  }

  .product-detail__breadcrumbs {
    margin-bottom: 1.25rem;
  }

  .product-detail__content-col {
    padding: 1.25rem;
    gap: 1.5rem;
  }

  .product-detail__hero-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding-bottom: 1.5rem;
  }

  .product-detail__media-frame {
    min-height: 280px;
  }

  .product-detail__title {
    font-size: var(--fs-lg);
  }

  .product-detail__quick-specs {
    grid-template-columns: 1fr;
  }

  .product-detail__details {
    gap: 1.75rem;
    padding-top: 1.5rem;
  }

  .product-detail__specs-wrapper {
    padding-top: 1.75rem;
  }
}