/* ==========================================================================
   product-detail.css — Ficha de Producto Individual (Estilo Apple Tech Specs)
   Tokens: var(--pcweb-*) | BEM Kebab-Case (<200 líneas)
   ========================================================================== */
.product-detail {
  padding-top: calc(var(--pcweb-header-height) + 2rem);
  padding-bottom: 5rem;
  background-color: var(--pcweb-color-bg-base);
}
.breadcrumbs {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: var(--pcweb-font-size-xs); color: var(--pcweb-color-text-muted);
  margin-bottom: 2rem; flex-wrap: wrap;
}
.breadcrumbs a { color: var(--pcweb-color-text-secondary); text-decoration: none; transition: color var(--pcweb-transition-fast); }
.breadcrumbs a:hover { color: var(--pcweb-color-accent-blue); }
.breadcrumbs__sep { color: rgba(255, 255, 255, 0.2); }
.breadcrumbs__current { color: var(--pcweb-color-text-primary); font-weight: var(--pcweb-font-weight-medium); }

/* Layout Bi-Columna */
.product-detail__grid { display: grid; grid-template-columns: 1fr; gap: 3rem; margin-bottom: 3.5rem; }
@media (min-width: 1024px) {
  .product-detail__grid { grid-template-columns: 1.1fr 1fr; gap: 4rem; align-items: start; }
}

/* Galería de Producto */
.product-gallery { position: relative; }
.product-gallery__main {
  width: 100%; height: 380px;
  background: var(--pcweb-color-bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--pcweb-radius-card);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem; margin-bottom: 1rem;
}
@media (min-width: 768px) { .product-gallery__main { height: 460px; } }
.product-gallery__img {
  max-width: 85%; max-height: 100%; object-fit: contain;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.7));
  transition: transform var(--pcweb-transition-normal);
}
.product-gallery__thumbs { display: flex; gap: 0.75rem; overflow-x: auto; padding-bottom: 4px; }
.product-gallery__thumb {
  width: 72px; height: 72px; flex-shrink: 0;
  border-radius: var(--pcweb-radius-button);
  background: var(--pcweb-color-bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.4rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--pcweb-transition-fast);
}
.product-gallery__thumb--active, .product-gallery__thumb:hover {
  border-color: var(--pcweb-color-accent-blue);
  box-shadow: 0 0 12px rgba(0, 100, 255, 0.35);
}
.product-gallery__thumb img { max-width: 100%; max-height: 100%; object-fit: contain; }

/* Información Comercial */
.product-info__badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 0.85rem; border-radius: var(--pcweb-radius-pill);
  background: rgba(0, 100, 255, 0.12); border: 1px solid rgba(0, 100, 255, 0.3);
  font-size: var(--pcweb-font-size-xs); font-weight: var(--pcweb-font-weight-semibold);
  color: var(--pcweb-color-accent-blue); text-transform: uppercase; margin-bottom: 0.85rem;
}
.product-info__title {
  font-size: var(--pcweb-font-size-3xl); font-weight: var(--pcweb-font-weight-extrabold);
  color: var(--pcweb-color-text-primary); line-height: var(--pcweb-line-height-compact); margin-bottom: 1rem;
}
.product-info__meta {
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  font-size: var(--pcweb-font-size-xs); color: var(--pcweb-color-text-secondary);
  margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.product-info__stock {
  color: var(--pcweb-color-accent-green); display: inline-flex; align-items: center; gap: 0.4rem; font-weight: var(--pcweb-font-weight-semibold);
}
.product-info__stock-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--pcweb-color-accent-green); box-shadow: 0 0 10px var(--pcweb-color-accent-green);
}
.product-info__prices { display: flex; align-items: baseline; gap: 1rem; margin-bottom: 1.5rem; }
.product-info__price-sale { font-size: 2.25rem; font-weight: var(--pcweb-font-weight-extrabold); color: var(--pcweb-color-text-primary); }
.product-info__price-regular { font-size: var(--pcweb-font-size-lg); color: var(--pcweb-color-text-muted); text-decoration: line-through; }
.product-info__actions { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }
@media (min-width: 640px) { .product-info__actions { flex-direction: row; align-items: center; } }

.qty-control {
  display: inline-flex; align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.15); border-radius: var(--pcweb-radius-button);
  background: var(--pcweb-color-bg-surface); overflow: hidden;
}
.qty-control__btn {
  width: 44px; height: 48px; background: transparent; border: none;
  color: var(--pcweb-color-text-primary); font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: background var(--pcweb-transition-fast);
}
.qty-control__btn:hover { background: rgba(255, 255, 255, 0.1); }
.qty-control__input {
  width: 55px; height: 48px; background: transparent; border: none;
  color: var(--pcweb-color-text-primary); text-align: center;
  font-size: var(--pcweb-font-size-base); font-weight: var(--pcweb-font-weight-bold);
}

/* Especificaciones Técnicas */
.product-specs { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 2.5rem; margin-top: 2.5rem; }
.product-specs__title { font-size: var(--pcweb-font-size-xl); font-weight: var(--pcweb-font-weight-bold); color: var(--pcweb-color-text-primary); margin-bottom: 1.25rem; }
.product-specs__list { list-style: none; padding: 0; display: grid; grid-template-columns: 1fr; gap: 0.75rem; }
@media (min-width: 768px) { .product-specs__list { grid-template-columns: 1fr 1fr; } }
.product-specs__item {
  display: flex; align-items: flex-start; gap: 0.75rem; font-size: var(--pcweb-font-size-sm);
  color: var(--pcweb-color-text-secondary); background: var(--pcweb-color-bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.05); border-radius: var(--pcweb-radius-button); padding: 0.85rem 1rem;
}
.product-specs__check { color: var(--pcweb-color-accent-blue); font-weight: bold; }

/* Componentes Universales Enriquecidos (Pills y Callouts) */
.product-custom-content { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 2.5rem; margin-top: 2.5rem; }
.pcweb-pills-grid { display: flex; flex-wrap: wrap; gap: 8px; margin: 1rem 0; }
.pcweb-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--pcweb-color-text-primary); font-size: var(--pcweb-font-size-xs); font-weight: var(--pcweb-font-weight-medium);
  padding: 6px 14px; border-radius: var(--pcweb-radius-pill); transition: all var(--pcweb-transition-fast);
}
.pcweb-pill:hover {
  background: rgba(0, 100, 255, 0.12); border-color: var(--pcweb-color-accent-blue); color: #fff; transform: translateY(-1px);
}
.pcweb-callout {
  display: flex; gap: var(--pcweb-space-3); padding: 1rem 1.25rem;
  border-radius: var(--pcweb-radius-md); margin: 1rem 0;
  background: rgba(255, 255, 255, 0.02); border: 1px solid rgba(255, 255, 255, 0.08);
}
.pcweb-callout--blue { border-left: 3px solid var(--pcweb-color-accent-blue); background: rgba(0, 100, 255, 0.05); }
.pcweb-callout--green { border-left: 3px solid var(--pcweb-color-accent-green); background: rgba(48, 209, 88, 0.05); }
.pcweb-callout--amber { border-left: 3px solid #ff9f0a; background: rgba(255, 159, 10, 0.05); }
.pcweb-callout__icon { font-size: 1.25rem; line-height: 1.2; flex-shrink: 0; }
.pcweb-callout__content strong { display: block; margin-bottom: 2px; color: var(--pcweb-color-text-primary); font-size: var(--pcweb-font-size-sm); }
.pcweb-callout__content p { margin: 0; font-size: var(--pcweb-font-size-xs); color: var(--pcweb-color-text-secondary); line-height: 1.4; }

/* Acordeón de FAQs */
.product-faq { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 2.5rem; margin-top: 2.5rem; }
.product-faq__title { font-size: var(--pcweb-font-size-xl); font-weight: var(--pcweb-font-weight-bold); color: var(--pcweb-color-text-primary); margin-bottom: 1.25rem; }
.product-faq__list { display: flex; flex-direction: column; gap: 0.75rem; }
.product-faq__item {
  background: var(--pcweb-color-bg-surface); border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--pcweb-radius-card); overflow: hidden; transition: border-color var(--pcweb-transition-fast);
}
.product-faq__item[open] { border-color: rgba(0, 100, 255, 0.35); }
.product-faq__summary {
  padding: 1rem 1.25rem; cursor: pointer; display: flex; justify-content: space-between;
  align-items: center; font-weight: var(--pcweb-font-weight-semibold); font-size: var(--pcweb-font-size-sm);
  color: var(--pcweb-color-text-primary); user-select: none; list-style: none;
}
.product-faq__summary::-webkit-details-marker { display: none; }
.product-faq__summary::after {
  content: '+'; font-size: 1.2rem; color: var(--pcweb-color-accent-blue); line-height: 1; transition: transform var(--pcweb-transition-fast);
}
.product-faq__item[open] .product-faq__summary::after { content: '−'; }
.product-faq__answer {
  padding: 0 1.25rem 1.25rem; font-size: var(--pcweb-font-size-sm);
  color: var(--pcweb-color-text-secondary); line-height: var(--pcweb-line-height-relaxed);
  border-top: 1px solid rgba(255, 255, 255, 0.04); padding-top: 0.85rem;
}

/* Selector Universal de Variantes / Opciones */
.product-options__select {
  width: 100%; padding: 0.85rem 2.5rem 0.85rem 1.25rem;
  background-color: var(--pcweb-color-bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.15); border-radius: var(--pcweb-radius-button);
  color: var(--pcweb-color-text-primary); font-family: var(--pcweb-font-family-primary);
  font-size: var(--pcweb-font-size-sm); appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%230064FF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 1rem center; background-size: 16px;
  cursor: pointer; transition: all var(--pcweb-transition-fast);
}
.product-options__select:focus { outline: none; border-color: var(--pcweb-color-accent-blue); box-shadow: 0 0 0 3px rgba(0, 100, 255, 0.25); }
.product-options__select option { background-color: #111111; color: #F5F5F7; }
.product-options__select--error {
  border-color: #ff453a !important; box-shadow: 0 0 0 3px rgba(255, 69, 58, 0.3) !important;
  animation: pcweb-shake 0.35s ease-in-out;
}
@keyframes pcweb-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}