/* ==========================================================================
   LUMINA OPTICS - PRODUCT DETAIL (PRODUCTO.HTML) STYLESHEET
   Configurador de micas ópticas, subida de recetas, medidas y cotización
   ========================================================================== */

.single-product-section {
  padding: 50px 0;
}

.product-detail-layout {
  display: flex;
  gap: 50px;
}

.product-gallery-col {
  flex: 0 0 52%;
  max-width: 52%;
}

.product-info-col {
  flex: 0 0 48%;
  max-width: 48%;
}

/* Gallery Styles */
.product-main-view {
  position: relative;
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.product-main-img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

.gallery-thumbs-row {
  display: flex;
  gap: 12px;
}

.thumb-btn {
  flex: 0 0 80px;
  height: 80px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-gray-200);
  overflow: hidden;
  background-color: var(--color-gray-50);
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 0;
}

.thumb-btn.active, .thumb-btn:hover {
  border-color: var(--color-purple-600);
  box-shadow: 0 0 0 2px var(--color-lila-pastel);
}

.thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Product Info Summary */
.product-meta-header {
  margin-bottom: 20px;
}

.product-sku-tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-gray-400);
  text-transform: uppercase;
}

.product-main-heading {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-black-deep);
  margin: 6px 0 10px 0;
}

.product-rating-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

.stars-gold {
  color: #F59E0B;
}

.product-price-box {
  margin: 20px 0;
  padding: 16px 20px;
  background-color: var(--color-lila-bg);
  border-left: 4px solid var(--color-purple-600);
  border-radius: var(--radius-sm);
}

.price-box-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-purple-700);
  margin-bottom: 4px;
}

.price-highlight {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-purple-800);
}

.price-notice {
  font-size: 0.8rem;
  color: var(--color-gray-500);
  margin-top: 4px;
}

/* Configurador de Armazón y Micas */
.config-group {
  margin-bottom: 24px;
}

.config-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-black-deep);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.config-title span {
  font-size: 0.8rem;
  color: var(--color-purple-600);
  font-weight: 600;
}

/* Color Swatches */
.swatches-list {
  display: flex;
  gap: 12px;
}

.swatch-item {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 1px var(--color-gray-300);
  transition: var(--transition-fast);
  position: relative;
}

.swatch-item.active {
  box-shadow: 0 0 0 2px var(--color-purple-600);
  transform: scale(1.1);
}

/* Lens Option Cards */
.lens-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.lens-card-opt {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 12px;
  cursor: pointer;
  background-color: var(--color-white);
  transition: var(--transition-fast);
}

.lens-card-opt.active, .lens-card-opt:hover {
  border-color: var(--color-purple-600);
  background-color: var(--color-lila-bg);
}

.lens-opt-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-black-deep);
  margin-bottom: 2px;
}

.lens-opt-desc {
  font-size: 0.76rem;
  color: var(--color-gray-500);
}

/* Prescription Upload Zone */
.prescription-dropzone {
  border: 2px dashed var(--color-lila-pastel);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  background-color: var(--color-gray-50);
  cursor: pointer;
  transition: var(--transition-fast);
}

.prescription-dropzone:hover {
  border-color: var(--color-purple-600);
  background-color: var(--color-lila-bg);
}

.dropzone-icon {
  font-size: 1.8rem;
  color: var(--color-purple-600);
  margin-bottom: 8px;
}

.dropzone-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-black-deep);
}

.dropzone-subtext {
  font-size: 0.75rem;
  color: var(--color-gray-400);
}

/* Action Buttons Group */
.product-actions-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.btn-add-quote {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  background: linear-gradient(135deg, var(--color-purple-600) 0%, var(--color-purple-800) 100%);
  color: var(--color-white);
  border-radius: var(--radius-full);
  box-shadow: 0 6px 18px rgba(124, 58, 237, 0.35);
  font-weight: 700;
}

.btn-whatsapp-quote {
  width: 100%;
  padding: 12px;
  font-size: 0.95rem;
  background-color: #25D366;
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* Tabs Section */
.product-tabs-section {
  margin-top: 60px;
  border-top: 1px solid var(--color-gray-200);
  padding-top: 40px;
}

.tabs-nav-header {
  display: flex;
  gap: 30px;
  border-bottom: 2px solid var(--color-gray-100);
  margin-bottom: 30px;
}

.tab-nav-btn {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gray-400);
  padding-bottom: 12px;
  position: relative;
  transition: var(--transition-fast);
}

.tab-nav-btn.active {
  color: var(--color-purple-700);
}

.tab-nav-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-purple-600);
}

.tab-panel-content {
  display: none;
  font-size: 0.95rem;
  color: var(--color-gray-600);
  line-height: 1.7;
}

.tab-panel-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Frame Dimensions Blueprint */
.dimensions-diagram-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background-color: var(--color-gray-50);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  margin-top: 20px;
}

.dimension-box {
  background-color: var(--color-white);
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
}

.dim-val {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-purple-700);
}

.dim-lbl {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  margin-top: 4px;
}

@media (max-width: 991px) {
  .product-detail-layout {
    flex-direction: column;
  }
  .product-gallery-col, .product-info-col {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .dimensions-diagram-grid {
    grid-template-columns: 1fr 1fr;
  }
}