/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #151515;
  --bg-tertiary: #1f1f1f;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent: #ffffff;
  --border: #2a2a2a;
  --success: #4caf50;
  --warning: #ff9800;
  --danger: #f44336;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
}

.nav {
  display: flex;
  gap: 1rem;
}

.cart-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  transition: all 0.3s;
}

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

.cart-count {
  background-color: var(--accent);
  color: var(--bg-primary);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

/* Main Content */
.main {
  padding: 3rem 0;
  min-height: calc(100vh - 200px);
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: 3rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 1px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
}

/* Controls */
.controls {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  align-items: center;
}

.search-box {
  flex: 1;
  min-width: 250px;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.3s;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent);
}

.filters {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.filter-select {
  padding: 0.75rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: border-color 0.3s;
}

.filter-select:focus {
  outline: none;
  border-color: var(--accent);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.product-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.3s;
  cursor: pointer;
}

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

.product-image-container {
  position: relative;
  width: 100%;
  padding-bottom: 125%;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.product-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s;
}

.product-image.hover-image {
  opacity: 0;
}

.product-card:hover .hover-image {
  opacity: 1;
}

.stock-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: var(--warning);
  color: var(--bg-primary);
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.stock-badge.out-of-stock {
  background-color: var(--danger);
}

.product-info {
  padding: 1.5rem;
}

.product-name {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.product-colors {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.color-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border);
}

.product-price {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.quick-add-btn {
  width: 100%;
  padding: 0.75rem;
  background-color: var(--accent);
  color: var(--bg-primary);
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.quick-add-btn:hover:not(:disabled) {
  background-color: var(--text-secondary);
}

.quick-add-btn:disabled {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: not-allowed;
}

/* Cart Drawer */
.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  pointer-events: none;
}

.cart-drawer.open {
  pointer-events: all;
}

.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  z-index: 999;
}

.cart-drawer.open .cart-overlay {
  opacity: 1;
  pointer-events: all;
}

.cart-content {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 450px;
  background-color: var(--bg-secondary);
  transform: translateX(100%);
  transition: transform 0.3s;
  display: flex;
  flex-direction: column;
  z-index: 1000;
}

.cart-drawer.open .cart-content {
  transform: translateX(0);
}

.cart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.close-cart {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

.cart-item {
  display: flex;
  gap: 1rem;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.cart-item-image {
  width: 80px;
  height: 100px;
  object-fit: cover;
  background-color: var(--bg-tertiary);
}

.cart-item-details {
  flex: 1;
}

.cart-item-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.cart-item-meta {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.cart-qty-btn {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 28px;
  height: 28px;
  cursor: pointer;
  font-size: 1rem;
}

.cart-qty-input {
  width: 40px;
  text-align: center;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.25rem;
}

.remove-item-btn {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 0.875rem;
  text-decoration: underline;
  margin-left: auto;
}

.empty-cart {
  text-align: center;
  color: var(--text-secondary);
  padding: 3rem 1rem;
}

.cart-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border);
}

.promo-section {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.promo-input {
  flex: 1;
  padding: 0.75rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.promo-btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s;
}

.promo-btn:hover {
  background-color: var(--accent);
  color: var(--bg-primary);
}

.cart-summary {
  margin-bottom: 1.5rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.discount-row {
  color: var(--success);
}

.total-row {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.checkout-btn {
  width: 100%;
  padding: 1rem;
  background-color: var(--accent);
  color: var(--bg-primary);
  border: none;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s;
  display: block;
  text-align: center;
  text-decoration: none;
}

.checkout-btn:hover {
  background-color: var(--text-secondary);
}

.checkout-btn:focus {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.checkout-btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* Product Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.modal.open {
  display: flex;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.9);
}

.modal-content {
  position: relative;
  background-color: var(--bg-secondary);
  max-width: 1000px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  z-index: 1;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 2rem;
  width: 40px;
  height: 40px;
  cursor: pointer;
  z-index: 1;
  line-height: 1;
}

.modal-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 2rem;
}

.modal-images {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-main-image {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  background-color: var(--bg-tertiary);
}

.modal-thumbnails {
  display: flex;
  gap: 0.5rem;
}

.modal-thumbnail {
  width: 80px;
  height: 100px;
  object-fit: cover;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.3s;
}

.modal-thumbnail:hover,
.modal-thumbnail.active {
  opacity: 1;
}

.modal-details {
  display: flex;
  flex-direction: column;
}

.modal-product-name {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.modal-product-price {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.modal-product-description {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.stock-indicator {
  padding: 0.75rem;
  background-color: var(--bg-tertiary);
  border-left: 3px solid var(--warning);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

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

.stock-indicator.out-of-stock {
  border-color: var(--danger);
}

.modal-options {
  margin-bottom: 2rem;
}

.option-group {
  margin-bottom: 1.5rem;
}

.option-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.size-options,
.color-options {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.size-btn,
.color-btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 600;
}

.size-btn:hover,
.color-btn:hover {
  border-color: var(--accent);
}

.size-btn.active,
.color-btn.active {
  background-color: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.quantity-selector {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.qty-btn {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  cursor: pointer;
  font-size: 1.25rem;
  transition: all 0.3s;
}

.qty-btn:hover {
  border-color: var(--accent);
}

#modalQuantity {
  width: 60px;
  text-align: center;
  padding: 0.5rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1rem;
}

.add-to-cart-btn {
  width: 100%;
  padding: 1rem;
  background-color: var(--accent);
  color: var(--bg-primary);
  border: none;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s;
  margin-top: auto;
}

.add-to-cart-btn:hover:not(:disabled) {
  background-color: var(--text-secondary);
}

.add-to-cart-btn:disabled {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: not-allowed;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--accent);
  color: var(--bg-primary);
  padding: 1rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  transform: translateY(200%);
  transition: transform 0.3s;
  z-index: 3000;
}

.toast.show {
  transform: translateY(0);
}

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  text-align: center;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filters {
    flex-direction: column;
  }
  
  .filter-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
  }
  
  .modal-body {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .cart-content {
    max-width: 100%;
  }
}