/* ==========================================================================
   AUFIT CLIMAS MÉXICO - PÁGINA INDIVIDUAL DE PRODUCTO
   Estética de Alta Agencia, Totalmente Responsiva, Modo Claro/Oscuro
   ========================================================================== */

.product-page-main {
  padding-top: 100px;
  padding-bottom: 80px;
  min-height: 100vh;
}

/* Breadcrumb */
.product-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.product-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.product-breadcrumb a:hover {
  color: var(--brand-cyan);
}
.product-breadcrumb .sep {
  opacity: 0.5;
}
.product-breadcrumb .current {
  color: var(--text-primary);
  font-weight: 600;
}

/* Layout Grid */
.product-layout-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 60px;
}

@media (max-width: 992px) {
  .product-layout-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Galería de Producto */
.product-gallery-box {
  position: sticky;
  top: 100px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.gallery-main-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: radial-gradient(circle, var(--bg-surface-subtle) 0%, var(--bg-surface) 100%);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  border: 1px solid var(--border-light);
}

.gallery-main-img {
  max-width: 92%;
  max-height: 92%;
  object-fit: contain;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
  filter: drop-shadow(0 12px 24px rgba(0,0,0,0.12));
}

.gallery-main-viewport:hover .gallery-main-img {
  transform: scale(1.05);
}

.gallery-badges-overlay {
  position: absolute;
  top: 14px;
  left: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2;
}

.badge-r32 {
  background: linear-gradient(135deg, #00C0F3, #0050A0);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
  box-shadow: 0 4px 10px rgba(0,192,243,0.3);
}

.badge-spec {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.gallery-thumbnails-strip {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.gallery-thumb-btn {
  flex: 0 0 76px;
  height: 76px;
  background: var(--bg-surface-subtle);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.gallery-thumb-btn img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.gallery-thumb-btn:hover {
  border-color: var(--brand-cyan);
  background: var(--bg-surface);
}

.gallery-thumb-btn.active {
  border-color: var(--brand-blue);
  background: var(--bg-surface);
  box-shadow: 0 0 0 3px rgba(0,80,160,0.2);
}

/* Panel de Información del Producto */
.product-info-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.product-brand-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--brand-blue);
}
[data-theme="dark"] .product-brand-tag {
  color: var(--brand-cyan);
}

.product-page-title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.5px;
}

@media (max-width: 768px) {
  .product-page-title {
    font-size: 1.65rem;
  }
}

.product-sku-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
}
.product-sku-meta strong {
  color: var(--text-secondary);
}

.product-rating-box {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}
.stars-gold {
  color: #F59E0B;
  letter-spacing: 2px;
}
.rating-num {
  font-weight: 700;
  color: var(--text-primary);
}
.rating-reviews {
  color: var(--text-muted);
}

/* Bloque de Precios y Stock */
.product-pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.price-row-main {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.price-current-val {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.price-old-val {
  font-size: 1.15rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.price-discount-badge {
  background: #DCFCE7;
  color: #15803D;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}
[data-theme="dark"] .price-discount-badge {
  background: rgba(16, 185, 129, 0.2);
  color: #34D399;
}

.stock-status-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  color: #10B981;
}
.stock-dot {
  width: 10px;
  height: 10px;
  background: #10B981;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Banner de Entrega 1 a 4 días */
.shipping-promise-banner {
  background: linear-gradient(135deg, rgba(0, 192, 243, 0.08), rgba(0, 80, 160, 0.05));
  border: 1px solid rgba(0, 192, 243, 0.25);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.shipping-promise-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}
.shipping-promise-text h5 {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 2px;
}
.shipping-promise-text p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Fila de Compra (Cantidad + Botones) */
.product-actions-row {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 6px;
}

.qty-control-box {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  height: 52px;
  overflow: hidden;
}
.qty-btn {
  width: 44px;
  height: 100%;
  background: transparent;
  border: none;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}
.qty-btn:hover {
  background: var(--bg-surface-subtle);
}
.qty-val-input {
  width: 48px;
  height: 100%;
  border: none;
  background: transparent;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.btn-add-cart-primary {
  flex: 1 1 200px;
  height: 52px;
  background: linear-gradient(135deg, var(--brand-blue), #003870);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 4px 14px rgba(0, 80, 160, 0.3);
  transition: all var(--transition-base);
}
.btn-add-cart-primary:hover {
  background: linear-gradient(135deg, #003F80, #002850);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 80, 160, 0.4);
}

.btn-buy-now-accent {
  flex: 1 1 200px;
  height: 52px;
  background: linear-gradient(135deg, #00C0F3, #009FE3);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 4px 14px rgba(0, 192, 243, 0.35);
  transition: all var(--transition-base);
}
.btn-buy-now-accent:hover {
  background: linear-gradient(135deg, #009FE3, #0080C8);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 192, 243, 0.45);
}

/* Guarantees List */
.product-trust-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
}
.trust-badge-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.trust-badge-icon {
  font-size: 1.25rem;
  color: var(--brand-cyan);
}

/* Tabs de Especificaciones */
.product-tabs-section {
  margin-top: 60px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
  .product-tabs-section {
    padding: 20px;
  }
}

.tabs-nav-bar {
  display: flex;
  gap: 12px;
  border-bottom: 2px solid var(--border-light);
  margin-bottom: 28px;
  overflow-x: auto;
}
.tab-trigger-btn {
  background: transparent;
  border: none;
  padding: 12px 20px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.tab-trigger-btn:hover {
  color: var(--brand-cyan);
}
.tab-trigger-btn.active {
  color: var(--brand-blue);
}
[data-theme="dark"] .tab-trigger-btn.active {
  color: var(--brand-cyan);
}
.tab-trigger-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--brand-blue);
  border-radius: 3px 3px 0 0;
}
[data-theme="dark"] .tab-trigger-btn.active::after {
  background: var(--brand-cyan);
}

.tab-content-panel {
  display: none;
  animation: fadeInTab 0.3s ease;
}
.tab-content-panel.active {
  display: block;
}
@keyframes fadeInTab {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Estilos de Tabla de Especificaciones Técnicas */
.specs-table-official {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}
.specs-table-official tr {
  border-bottom: 1px solid var(--border-light);
}
.specs-table-official tr:nth-child(even) {
  background: var(--bg-surface-subtle);
}
.specs-table-official th {
  text-align: left;
  padding: 14px 18px;
  width: 35%;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.92rem;
}
.specs-table-official td {
  padding: 14px 18px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.94rem;
}

/* Lista de Características */
.features-bullet-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}
@media (max-width: 768px) {
  .features-bullet-list {
    grid-template-columns: 1fr;
  }
}
.feature-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg-surface-subtle);
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}
.feature-check-icon {
  color: var(--brand-green);
  font-size: 1.15rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.feature-text-content {
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

/* Related Products */
.related-products-section {
  margin-top: 60px;
}
.section-title-clean {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.related-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 992px) {
  .related-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 576px) {
  .related-cards-grid {
    grid-template-columns: 1fr;
  }
}