/* ======================
   Product Pages Styles
   ====================== */

/* Breadcrumb Navigation */
.breadcrumb {
  background: var(--bg-secondary);
  padding: 1rem 2rem;
  margin-top: 80px;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb a:hover {
  color: var(--primary-color);
}

.breadcrumb .separator {
  margin: 0 0.5rem;
  color: var(--text-secondary);
}

.breadcrumb .current {
  color: var(--primary-color);
  font-weight: 500;
}

/* Product Hero Section */
.product-hero {
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.product-hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

/* Image Gallery */
.product-image-gallery {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.main-image {
  width: 100%;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
}

.main-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: var(--transition);
}

.thumbnail-gallery {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.5rem 0;
}

.thumbnail {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  flex-shrink: 0;
}

.thumbnail:hover,
.thumbnail.active {
  border-color: var(--primary-color);
  transform: scale(1.05);
}

/* Product Details */
.product-details h1 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 2.5rem;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.stars {
  display: flex;
  gap: 0.2rem;
}

.stars i {
  color: #ffd700;
  font-size: 1.1rem;
}

.rating-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.product-tagline {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: var(--text-light);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  display: inline-block;
  font-weight: 500;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.product-description {
  margin-bottom: 2rem;
}

.product-description p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Certifications */
.certifications {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  align-items: center;
}

.cert-badge {
  height: 75px; /* slightly larger for clarity */
  width: auto;
  border-radius: 8px;
  padding: 0.5rem;
  background: var(--bg-card);
  box-shadow: var(--shadow-light);
  transition: var(--transition);
}

.cert-badge:hover {
  transform: translateY(-2px) scale(1.18); /* subtle zoom for better visibility */
  box-shadow: var(--shadow-medium);
}

/* Keyboard accessibility */
.cert-badge:focus-visible {
  outline: 1px solid var(--primary-color);
  outline-offset: 2px;
  transform: translateY(-2px) scale(1.18);
}

/* Product Actions */
.product-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.inquiry-btn,
.whatsapp-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  min-width: 150px;
  justify-content: center;
}

/* Product Information Tabs */
.product-info-tabs {
  background: var(--bg-secondary);
  padding: 3rem 2rem;
}

.tab-navigation {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  overflow-x: auto;
}

.tab-btn {
  background: var(--bg-card);
  border: 2px solid transparent;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 500;
  color: var(--text-primary);
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

.tab-btn:hover {
  border-color: var(--primary-light);
}

.tab-btn.active {
  background: var(--primary-color);
  color: var(--text-light);
  border-color: var(--primary-color);
}

.tab-content {
  max-width: 1200px;
  margin: 0 auto;
}

.tab-panel {
  display: none;
  animation: fadeIn 0.3s ease-in;
}

.tab-panel.active {
  display: block;
}

.tab-panel h3 {
  color: var(--primary-color);
  margin-bottom: 2rem;
  font-size: 2rem;
}

/* Specifications Grid */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.spec-item {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-light);
}

.spec-item strong {
  color: var(--primary-color);
}

.spec-item span {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Benefits List */
.benefits-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.benefit-item {
  display: flex;
  gap: 1rem;
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  transition: var(--transition);
}

.benefit-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.benefit-item i {
  color: var(--primary-color);
  font-size: 2rem;
  flex-shrink: 0;
  margin-top: 0.5rem;
}

.benefit-item h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.benefit-item p {
  color: var(--text-secondary);
  margin: 0;
}

/* Applications Grid */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.application-item {
  text-align: center;
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  transition: var(--transition);
}

.application-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.application-item i {
  color: var(--primary-color);
  font-size: 3rem;
  margin-bottom: 1rem;
}

.application-item h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.application-item p {
  color: var(--text-secondary);
  margin: 0;
}

/* Packaging Options */
.packaging-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.package-item {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
}

.package-item h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.package-item ul {
  list-style: none;
  padding: 0;
}

.package-item li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  color: var(--text-secondary);
}

.package-item li:last-child {
  border-bottom: none;
}

/* Related Products */
.related-products {
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.related-products h2 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 3rem;
}

.product-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  text-align: center;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
}

.product-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.product-card h3 {
  color: var(--primary-color);
  padding: 1rem;
  margin: 0;
}

.product-card p {
  color: var(--text-secondary);
  padding: 0 1rem;
  margin: 0;
}

.btn-outline {
  display: inline-block;
  margin: 1rem;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
  font-weight: 500;
}

.btn-outline:hover {
  background: var(--primary-color);
  color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
  .breadcrumb {
    margin-top: 120px;
    padding: 1rem;
    font-size: 0.8rem;
  }
  
  .product-hero {
    padding: 2rem 1rem;
  }
  
  .product-hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .product-details h1 {
    font-size: 2rem;
  }
  
  .main-image img {
    height: 300px;
  }
  
  .tab-navigation {
    padding: 0 1rem;
  }
  
  .tab-btn {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }
  
  .product-info-tabs {
    padding: 2rem 1rem;
  }
  
  .specs-grid {
    grid-template-columns: 1fr;
  }
  
  .benefits-list {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .applications-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  .packaging-options {
    grid-template-columns: 1fr;
  }
  
  .product-actions {
    flex-direction: column;
  }
  
  .inquiry-btn,
  .whatsapp-btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .applications-grid {
    grid-template-columns: 1fr;
  }
  
  .certifications {
    justify-content: center;
  }
  
  .cert-badge {
    height: 50px;
  }
}

/* Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}