/**
 * Product Card Component Styles
 * Modern, responsive product cards using brand variables
 * Optimized for performance and accessibility
 */

/* ===================================================================
   BASE PRODUCT CARD
   =================================================================== */

.product-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-white);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast);
}

.product-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===================================================================
   IMAGE SECTION
   =================================================================== */

.product-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.product-card__image {
  position: relative;
  width: 100%;
  height: 240px;
  margin: 0;
  background: var(--color-white);
  overflow: hidden;
  border-bottom: 1px solid var(--border-primary);
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--transition-medium);
}

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

/* Badges */
.product-card__badges {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-xs);
}

.badge {
  padding: 4px 8px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.badge--sale {
  background: var(--color-danger);
  color: var(--color-white);
}

/* ===================================================================
   CONTENT SECTION
   =================================================================== */

.product-card__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md);
  background: var(--bg-secondary);
}

/* Header */
.product-card__header {
  margin-bottom: var(--spacing-md);
}

.product-card__category {
  margin: 0 0 var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: 1.4;
}

.product-card__title {
  margin: 0 0 var(--spacing-xs);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  line-height: 1.3;
}

.product-card__title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card__title a:hover {
  color: var(--color-accent);
}

.product-card__sku {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ===================================================================
   RATING SECTION
   =================================================================== */

.product-card__rating {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  gap: var(--spacing-sm);
}

.product-card__rating .star {
  display: inline-block;
  color: var(--color-accent);
  font-size: var(--font-size-base);
  margin-right: 2px;
}

.product-card__actions-quick {
  display: flex;
  gap: var(--spacing-xs);
}

.btn-icon {
  width: var(--touch-target-compact);
  height: var(--touch-target-compact);
  padding: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background: var(--bg-hover);
  color: var(--color-accent);
  transform: translateY(-1px);
}

.btn-icon:focus {
  outline: var(--focus-outline);
  outline-offset: var(--focus-outline-offset);
}

/* ===================================================================
   PRICING SECTION
   =================================================================== */

.product-card__pricing {
  margin-bottom: var(--spacing-sm);
}

.product-card__price-old {
  font-size: var(--font-size-base);
  color: var(--text-muted);
  text-decoration: line-through;
  margin-right: var(--spacing-xs);
}

.product-card__price-current {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

/* Price Tiers */
.product-card__tiers {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-md);
  font-size: var(--font-size-sm);
  border-top: 1px solid var(--border-primary);
  padding-top: var(--spacing-sm);
}

.product-card__tiers li {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  color: var(--text-secondary);
}

.tier-qty {
  font-weight: var(--font-weight-medium);
}

.tier-price {
  color: var(--text-primary);
}

/* ===================================================================
   FORM SECTION
   =================================================================== */

.product-card__form {
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-primary);
  margin: 0;
}

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

.product-card__quantity label {
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  margin: 0;
}

.input-qty {
  width: 80px;
  height: var(--touch-target-compact);
  padding: var(--spacing-xs);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  text-align: center;
  font-size: var(--font-size-base);
  margin-bottom: 0 !important;
}

.input-qty:focus {
  outline: var(--focus-outline);
  outline-offset: var(--focus-outline-offset);
  background: var(--bg-primary);
}

/* ===================================================================
   BUTTONS
   =================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  min-height: var(--touch-target-min);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-black);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn--full {
  width: 100%;
}

.btn:focus {
  outline: var(--focus-outline);
  outline-offset: var(--focus-outline-offset);
}

.btn i {
  font-size: var(--font-size-lg);
}

/* ===================================================================
   RESPONSIVE DESIGN
   =================================================================== */

/* Tablet adjustments */
@media (max-width: 991px) {
  .product-card__image {
    height: 200px;
  }

  .product-card__content {
    padding: var(--spacing-sm);
  }
}

/* Mobile adjustments */
@media (max-width: 575px) {
  .product-card__image {
    height: 180px;
  }

  .product-card__title {
    font-size: var(--font-size-base);
  }

  .product-card__quantity {
    flex-direction: column;
    align-items: stretch;
  }

  .input-qty {
    width: 100%;
  }

  .product-card__actions-quick {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    opacity: 1;
  }
}

/* ===================================================================
   ACCESSIBILITY
   =================================================================== */

/* Focus visible for keyboard navigation */
.product-card__link:focus-visible,
.btn:focus-visible,
.btn-icon:focus-visible,
.input-qty:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-outline-offset);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .product-card,
  .product-card__image img,
  .btn,
  .btn-icon {
    transition: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .product-card {
    border-width: 2px;
  }

  .btn {
    border: 2px solid currentColor;
  }
}

/* Screen reader only text */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}