:root {
  --bg-gradient: linear-gradient(135deg, #2a0a4a 0%, #15002b 100%);
  --panel-bg: rgba(42, 10, 74, 0.7);
  --panel-border: rgba(255, 255, 255, 0.1);
  --text-primary: #ffffff;
  --text-secondary: #e0d4f0;
  --accent-color: #d4af37; /* Premium Gold */
  --accent-hover: #e5c158;
  --accent-glow: rgba(212, 175, 55, 0.4);
  --accent-gradient: linear-gradient(135deg, #d4af37 0%, #aa7c11 100%);
  --card-bg: rgba(60, 20, 100, 0.4);
  --card-border: rgba(255, 255, 255, 0.08);
  --danger: #e53e3e;
  --success: #38a169;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Montserrat', sans-serif;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-color) var(--panel-bg);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.3s;
}
a:visited {
  color: var(--accent-color);
}
a:hover {
  color: var(--accent-hover);
}

.category-item:visited {
  color: var(--text-secondary);
}
.category-item:hover:visited {
  color: var(--text-primary);
}
.sidebar-header-link:visited {
  color: var(--text-primary);
}
.sidebar-header-link:hover:visited {
  color: var(--accent-color);
}
.article-card-link:visited {
  color: inherit;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--panel-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--accent-color);
  border-radius: 3px;
}

body {
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* App Container */
.app-container {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* Sidebar */
aside.sidebar {
  width: 300px;
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--panel-border);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: sticky;
  top: 0;
  z-index: 50;
}

.logo-section {
  margin-bottom: 2.5rem;
  text-align: center;
}

.logo-section h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.logo-section p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 3px;
}

.categories-nav {
  margin-bottom: 1.5rem;
}

.categories-nav h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-color);
  margin-bottom: 1rem;
  font-weight: 600;
}

.category-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin-bottom: 0.4rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.category-item:hover, .category-item.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  padding-left: 1.5rem;
  border-left: 3px solid var(--accent-color);
}

/* Main Content Area */
main.main-content {
  flex: 1;
  padding: 2rem 3rem;
  display: flex;
  flex-direction: column;
}

/* Top Bar */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
  gap: 2rem;
}

.search-box {
  position: relative;
  max-width: 400px;
  width: 100%;
}

.search-box input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 30px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all 0.3s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 15px var(--accent-glow);
}

.search-box i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.cart-trigger-btn {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  color: var(--text-primary);
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  transition: all 0.3s;
  position: relative;
}

.cart-trigger-btn:hover {
  border-color: var(--accent-color);
  box-shadow: 0 0 15px var(--accent-glow);
  transform: translateY(-2px);
}

.article-card-link {
  text-decoration: none;
  display: block;
  height: 100%;
}

.article-card {
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.article-card-link:hover .article-card {
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.article-card-link:hover h3 {
  color: var(--accent-color) !important;
}

.cart-count-badge {
  background: var(--danger);
  color: white;
  font-size: 0.75rem;
  min-width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  font-weight: 700;
}

/* Hero Banner */
.hero-banner {
  background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('https://images.unsplash.com/photo-1515562141207-7a88fb7ce338?w=1600&auto=format&fit=crop') center/cover;
  height: 250px;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem;
  margin-bottom: 3rem;
  border: 1px solid var(--panel-border);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.hero-banner h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.hero-banner p {
  color: var(--text-secondary);
  max-width: 500px;
  font-size: 0.95rem;
  line-height: 1.5;
  text-shadow: 0 2px 5px rgba(0,0,0,0.5);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2rem;
  flex: 1;
}

.product-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: rgba(212, 175, 55, 0.3);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(212, 175, 55, 0.1);
}

.product-image {
  position: relative;
  padding-top: 100%; /* 1:1 Aspect Ratio */
  overflow: hidden;
  background: rgba(0,0,0,0.2);
}

.product-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-details {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 2.8rem;
}

.product-price {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.product-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 3.6rem;
}

.add-to-cart-btn {
  width: 100%;
  background: transparent;
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  padding: 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: auto;
}

.add-to-cart-btn:hover {
  background: var(--accent-color);
  color: #000;
  box-shadow: 0 0 15px var(--accent-glow);
}

/* Cart Drawer */
.cart-drawer {
  position: fixed;
  right: -400px;
  top: 0;
  width: 400px;
  height: 100vh;
  background: rgba(15, 12, 30, 0.95);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-left: 1px solid var(--panel-border);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -10px 0 30px rgba(0,0,0,0.5);
}

.cart-drawer.open {
  right: 0;
}

.cart-header {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.close-cart-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s;
}

.close-cart-btn:hover {
  color: var(--text-primary);
}

.cart-items-list {
  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 rgba(255,255,255,0.05);
  align-items: center;
}

.cart-item-img {
  width: 60px;
  height: 60px;
  border-radius: 8px;
  overflow: hidden;
  background: rgba(0,0,0,0.2);
  flex-shrink: 0;
}

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

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

.cart-item-title {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cart-item-price {
  font-size: 0.9rem;
  color: var(--accent-color);
  font-weight: 700;
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.qty-btn {
  background: rgba(255,255,255,0.05);
  border: none;
  color: var(--text-primary);
  width: 24px;
  height: 24px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  transition: background 0.3s;
}

.qty-btn:hover {
  background: rgba(255,255,255,0.15);
}

.qty-val {
  font-size: 0.85rem;
  font-weight: 600;
  min-width: 20px;
  text-align: center;
}

.remove-item-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.3s;
  padding: 0.5rem;
}

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

.cart-footer {
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--panel-border);
  background: rgba(10, 8, 22, 0.6);
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.checkout-btn {
  width: 100%;
  background: var(--accent-color);
  border: none;
  color: #000;
  padding: 1rem;
  border-radius: 30px;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.checkout-btn:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
}

.checkout-btn:visited,
.checkout-btn:hover:visited {
  color: #000 !important;
}

.empty-cart-view {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem;
}

.empty-cart-view i {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--panel-border);
}

/* Backdrop Overlay */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  z-index: 90;
  display: none;
}

.overlay.open {
  display: block;
}

/* Checkout Modal */
.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: 90%;
  max-width: 500px;
  background: rgba(15, 12, 30, 0.98);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  padding: 2.5rem;
  z-index: 110;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.modal.open {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.modal-header h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-color);
}

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

.form-group label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: white;
  font-size: 0.9rem;
  transition: border-color 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
}

/* Success State */
.success-view {
  text-align: center;
  padding: 2rem 0;
}

.success-view i {
  font-size: 4rem;
  color: var(--success);
  margin-bottom: 1.5rem;
}

.success-view h4 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.success-view p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Footer */
footer.app-footer {
  margin-top: auto;
  padding: 3rem 0 1rem;
  border-top: 1px solid var(--panel-border);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

footer.app-footer a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.3s;
}

footer.app-footer a:hover {
  color: var(--accent-hover);
}

/* Mobile Toggle Button */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Responsive rules */
@media (max-width: 1024px) {
  aside.sidebar {
    position: fixed;
    left: -300px;
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  aside.sidebar.open {
    left: 0;
  }
  .mobile-menu-toggle {
    display: block;
  }
  main.main-content {
    padding: 1.5rem 1.5rem;
  }
  .hero-banner {
    padding: 2rem;
    height: auto;
  }
}

@media (max-width: 500px) {
  .cart-drawer {
    width: 100vw;
    right: -100vw;
  }
}

.store-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2.5rem;
}

.store-pagination .page-btn,
.store-pagination .page-link {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--panel-border);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.3s;
  cursor: pointer;
}

.store-pagination .page-btn:hover:not(.disabled),
.store-pagination .page-link:hover:not(.active) {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
  border-color: var(--accent-color);
}

.store-pagination .page-link.active {
  background: var(--accent-gradient);
  color: white;
  border-color: transparent;
  font-weight: 600;
}

.store-pagination .page-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.sidebar-header-link:hover {
  color: var(--accent-color) !important;
}