/* ============================================
   POS-Shop — Storefront Styles
   Customer-facing shopping experience
   ============================================ */

/* === Header / Navbar === */
.store-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 var(--space-6);
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.store-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text-primary);
  text-decoration: none;
}

.store-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-accent-500));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.store-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-hover);
}

.nav-link.active {
  color: var(--color-primary-400);
}

.cart-badge {
  position: relative;
}

.cart-count {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: var(--color-danger-500);
  color: white;
  font-size: 10px;
  font-weight: var(--weight-bold);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: cartBounce var(--transition-spring);
}

@keyframes cartBounce {
  0% { transform: scale(0); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* === Hero Section === */
.hero {
  padding: var(--space-16) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: var(--weight-extrabold);
  margin-bottom: var(--space-4);
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary-400) 50%, var(--color-accent-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-tertiary);
  max-width: 560px;
  margin: 0 auto var(--space-8);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

/* === Category Filter Bar === */
.category-bar {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.category-bar::-webkit-scrollbar {
  display: none;
}

.category-chip {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.category-chip:hover {
  border-color: var(--color-primary-500);
  color: var(--color-primary-400);
}

.category-chip.active {
  background: var(--color-primary-600);
  border-color: var(--color-primary-500);
  color: white;
}

/* === Product Grid === */
.products-section {
  padding: var(--space-8) 0 var(--space-16);
}

.products-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-6);
}

/* === Product Card === */
.product-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
}

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

.product-card-image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

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

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

.product-card-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
}

.product-card-actions {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  opacity: 0;
  transform: translateX(8px);
  transition: all var(--transition-base);
}

.product-card:hover .product-card-actions {
  opacity: 1;
  transform: translateX(0);
}

.product-card-action-btn {
  width: 36px;
  height: 36px;
  background: var(--color-bg-glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.product-card-action-btn:hover {
  background: var(--color-primary-600);
  border-color: var(--color-primary-500);
}

.product-card-info {
  padding: var(--space-4);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-category {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-primary-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.product-card-name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
}

.product-card-price {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: auto;
}

.product-card-price .current {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
}

.product-card-price .original {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.product-card-price .discount {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--color-success-400);
}

.product-card-stock {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.product-card-stock.low {
  color: var(--color-warning-400);
}

.product-card-stock.out {
  color: var(--color-danger-400);
}

/* === Product Detail === */
.product-detail {
  padding: var(--space-8) 0 var(--space-16);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: start;
}

.product-gallery {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

.product-gallery-main {
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
}

.product-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-gallery-thumbs {
  display: flex;
  gap: var(--space-3);
}

.product-thumb {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color var(--transition-fast);
  opacity: 0.6;
}

.product-thumb:hover,
.product-thumb.active {
  border-color: var(--color-primary-500);
  opacity: 1;
}

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

.product-info-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.product-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.product-breadcrumb a {
  color: var(--color-text-tertiary);
}

.product-breadcrumb a:hover {
  color: var(--color-primary-400);
}

.product-title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
}

.product-rating {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.product-rating .stars {
  color: var(--color-accent-400);
}

.product-price-section {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.product-price-section .price {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
}

.product-price-section .original-price {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.product-price-section .discount-pct {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-success-400);
  background: var(--color-success-50);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.product-description {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.product-variants {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.variant-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.variant-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
}

.variant-options {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.variant-option {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.variant-option:hover {
  border-color: var(--color-primary-500);
  color: var(--color-primary-400);
}

.variant-option.active {
  background: var(--color-primary-600);
  border-color: var(--color-primary-500);
  color: white;
}

.variant-option.out-of-stock {
  opacity: 0.4;
  cursor: not-allowed;
  text-decoration: line-through;
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-1);
}

.quantity-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

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

.quantity-value {
  width: 48px;
  text-align: center;
  font-weight: var(--weight-semibold);
  font-size: var(--text-base);
}

.product-add-actions {
  display: flex;
  gap: var(--space-3);
}

.stock-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

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

.stock-dot.in-stock { background: var(--color-success-500); }
.stock-dot.low-stock { background: var(--color-warning-500); }
.stock-dot.out-of-stock { background: var(--color-danger-500); }

/* === Cart Page === */
.cart-page {
  padding: var(--space-8) 0 var(--space-16);
}

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-8);
  align-items: start;
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cart-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
}

.cart-item:hover {
  border-color: var(--color-border-hover);
}

.cart-item-image {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-bg-tertiary);
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.cart-item-name {
  font-weight: var(--weight-semibold);
}

.cart-item-variant {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.cart-item-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.cart-item-price {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
}

.cart-item-remove {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.cart-item-remove:hover {
  color: var(--color-danger-400);
}

/* === Cart Summary / Checkout Summary === */
.cart-summary {
  background: var(--color-bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

.cart-summary-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-4);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.cart-summary-row.total {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  padding-top: var(--space-4);
  margin-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.cart-summary-row .value {
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
}

.discount-input-row {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.discount-input-row .form-input {
  flex: 1;
}

/* === Checkout === */
.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-8);
  padding: var(--space-8) 0 var(--space-16);
  align-items: start;
}

.checkout-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.checkout-section-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.checkout-section-title .step-number {
  width: 28px;
  height: 28px;
  background: var(--color-primary-600);
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
}

.address-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* === Account Page === */
.account-page {
  padding: var(--space-8) 0 var(--space-16);
}

.account-header {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.account-info h2 {
  margin-bottom: var(--space-1);
}

.account-info p {
  font-size: var(--text-sm);
}

.order-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
  transition: border-color var(--transition-fast);
}

.order-card:hover {
  border-color: var(--color-border-hover);
}

.order-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-2);
}

.order-id {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary-400);
}

.order-items-preview {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
}

.order-item-thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-bg-tertiary);
}

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

.order-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* === Footer === */
.store-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-8);
}

.footer-brand p {
  font-size: var(--text-sm);
  margin-top: var(--space-3);
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.footer-links a:hover {
  color: var(--color-primary-400);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* === Mobile Menu === */
.mobile-menu-btn {
  display: none;
}

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: var(--z-overlay);
  display: none;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  background: var(--color-bg-secondary);
  border-left: 1px solid var(--color-border);
  padding: var(--space-6);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-menu.open {
  transform: translateX(0);
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .store-nav .nav-link:not(.cart-badge) {
    display: none;
  }

  .hero-title {
    font-size: var(--text-3xl);
  }

  .hero-subtitle {
    font-size: var(--text-base);
  }

  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .product-gallery {
    position: static;
  }

  .cart-layout,
  .checkout-layout {
    grid-template-columns: 1fr;
  }

  .cart-summary {
    position: static;
  }

  .address-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
}