/* ===================================
   Product Card Styles
   =================================== */

.product-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-all);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-secondary);
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-info {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--primary-color);
  color: var(--text-inverse);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  line-height: var(--leading-tight);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-specs {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: var(--leading-relaxed);
}

.product-price {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
}

.product-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: auto;
}

/* Product Button Variants */
.product-actions .btn {
  flex: 1;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--text-sm);
  min-height: 36px;
}

/* ===================================
   Empty and Error States
   =================================== */

.empty-state,
.error-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-6xl) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.empty-state-icon,
.error-state-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-xl);
  opacity: 0.3;
  color: var(--text-muted);
}

.empty-state h3,
.error-state h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.empty-state p,
.error-state p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 400px;
}

.error-state-icon {
  color: var(--error-color);
  opacity: 0.5;
}

/* ===================================
   Product Modal
   =================================== */

.product-modal-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  max-width: 900px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .product-modal-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

.product-modal-image {
  position: relative;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

.product-modal-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--spacing-lg);
}

.product-modal-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.product-modal-category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--primary-color);
  color: var(--text-inverse);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  align-self: flex-start;
}

.product-modal-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin: 0;
  line-height: var(--leading-tight);
}

.product-modal-price {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--primary-color);
}

.product-modal-specs,
.product-modal-description {
  border-top: 1px solid var(--border-primary);
  padding-top: var(--spacing-lg);
}

.product-modal-specs h4,
.product-modal-description h4 {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.product-modal-specs p,
.product-modal-description p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin: 0;
}

.product-modal-actions {
  border-top: 1px solid var(--border-primary);
  padding-top: var(--spacing-lg);
  margin-top: auto;
}

.product-modal-actions .btn {
  width: 100%;
  justify-content: center;
}

/* ===================================
   Modal Overlay and Container
   =================================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  padding: var(--spacing-lg);
}

.modal:not(.hidden) {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 95vw;
  max-height: 95vh;
  overflow: hidden;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-normal);
  width: 100%;
}

.modal:not(.hidden) .modal-content {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
}

.modal-header h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin: 0;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  padding: var(--spacing-sm);
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: var(--transition-all);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-xl);
  overflow-y: auto;
  max-height: calc(95vh - 80px);
}

/* Mobile Modal Adjustments */
@media (max-width: 640px) {
  .modal {
    padding: var(--spacing-sm);
  }
  
  .modal-header {
    padding: var(--spacing-lg);
  }
  
  .modal-header h3 {
    font-size: var(--text-lg);
  }
  
  .modal-body {
    padding: var(--spacing-lg);
  }
  
  .product-modal-title {
    font-size: var(--text-xl);
  }
  
  .product-modal-price {
    font-size: var(--text-2xl);
  }
}

/* ===================================
   Loading and Skeleton States
   =================================== */

.skeleton-card {
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    var(--bg-secondary) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-lg);
  height: 400px;
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.loading-placeholder {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

/* ===================================
   Product Image Lazy Loading
   =================================== */

.product-img[loading="lazy"] {
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.product-img.loaded {
  opacity: 1;
}

/* ===================================
   Category Badge Variants
   =================================== */

.product-category[data-category="ddr5"] {
  background-color: #7c3aed;
}

.product-category[data-category="ddr4"] {
  background-color: #3b82f6;
}

.product-category[data-category="nvme"] {
  background-color: #10b981;
}

.product-category[data-category="sata"] {
  background-color: #f59e0b;
}

/* ===================================
   Product Status Badges
   =================================== */

.product-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 1;
}

.product-badge--new {
  background-color: var(--success-color);
  color: var(--text-inverse);
}

.product-badge--sale {
  background-color: var(--secondary-color);
  color: var(--text-inverse);
}

.product-badge--featured {
  background-color: var(--primary-color);
  color: var(--text-inverse);
}

/* ===================================
   Product Rating
   =================================== */

.product-rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.product-rating-stars {
  display: flex;
  gap: 2px;
}

.product-rating-star {
  width: 16px;
  height: 16px;
  color: var(--warning-color);
}

.product-rating-star--empty {
  color: var(--border-secondary);
}

.product-rating-count {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* ===================================
   Product Stock Status
   =================================== */

.product-stock {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--text-sm);
  margin-bottom: var(--spacing-sm);
}

.product-stock--in {
  color: var(--success-color);
}

.product-stock--low {
  color: var(--warning-color);
}

.product-stock--out {
  color: var(--error-color);
}

.product-stock-indicator {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
}

.product-stock--in .product-stock-indicator {
  background-color: var(--success-color);
}

.product-stock--low .product-stock-indicator {
  background-color: var(--warning-color);
}

.product-stock--out .product-stock-indicator {
  background-color: var(--error-color);
}

/* ===================================
   Product Card Hover Effects
   =================================== */

.product-card {
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: translateY(-100%);
  transition: transform var(--transition-normal);
}

.product-card:hover::before {
  transform: translateY(0);
}

/* ===================================
   Responsive Product Grid
   =================================== */

@media (max-width: 640px) {
  .product-actions {
    flex-direction: column;
  }
  
  .product-actions .btn {
    width: 100%;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

@media (min-width: 641px) and (max-width: 768px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1025px) {
  .products-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}