:root{--primary-color: #3b82f6;--primary-hover: #2563eb;--primary-light: #dbeafe;--secondary-color: #64748b;--secondary-hover: #475569;--success-color: #10b981;--error-color: #ef4444;--warning-color: #f59e0b;--text-primary: #1f2937;--text-secondary: #6b7280;--text-light: #9ca3af;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--border-color: #e5e7eb;--border-color-dark: #d1d5db;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--transition-fast: .15s ease-in-out;--transition-base: .25s ease-in-out;--transition-slow: .35s ease-in-out}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.5;color:var(--text-primary);background-color:var(--bg-secondary)}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2;color:var(--text-primary)}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}h5{font-size:var(--font-size-base)}h6{font-size:var(--font-size-sm)}p{margin-bottom:var(--spacing-md);color:var(--text-secondary)}a{color:var(--primary-color);text-decoration:none;transition:color 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var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);outline:none;transition:border-color 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var(--spacing-sm)}:root{--spacing-xl: 1.5rem;--spacing-2xl: 2rem}}@media(max-width:767px){h1{font-size:var(--font-size-2xl)}h2{font-size:var(--font-size-xl)}h3{font-size:var(--font-size-lg)}}.flex-wrap{flex-wrap:wrap}@media(max-width:767px){.flex-mobile-column{flex-direction:column}}.p-responsive{padding:var(--spacing-sm)}@media(min-width:768px){.p-responsive{padding:var(--spacing-md)}}@media(min-width:992px){.p-responsive{padding:var(--spacing-lg)}}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 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var(--transition-base)}.product-card:hover .product-image{transform:scale(1.05)}.product-image-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--text-light)}.product-info{padding:var(--spacing-md);flex:1;display:flex;flex-direction:column}.product-name{font-size:var(--font-size-lg);font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-sm);line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-description{font-size:var(--font-size-sm);color:var(--text-secondary);margin-bottom:var(--spacing-md);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}.product-footer{display:flex;align-items:center;justify-content:space-between;margin-top:auto;gap:var(--spacing-sm)}.product-price{font-size:var(--font-size-xl);font-weight:700;color:var(--primary-color)}.product-cart-actions{display:flex;align-items:center;gap:var(--spacing-xs)}.quantity-selector{display:flex;align-items:center;border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;background-color:var(--bg-primary)}.qty-btn{background-color:var(--bg-primary);border:none;padding:4px 8px;cursor:pointer;font-size:var(--font-size-lg);font-weight:600;color:var(--text-primary);transition:all var(--transition-base);line-height:1;min-width:28px;height:32px;display:flex;align-items:center;justify-content:center}.qty-btn:hover:not(:disabled){background-color:var(--bg-tertiary);color:var(--primary-color)}.qty-btn:disabled{opacity:.5;cursor:not-allowed}.qty-input{width:40px;text-align:center;border:none;border-left:1px solid var(--border-color);border-right:1px solid var(--border-color);padding:4px;font-size:var(--font-size-base);font-weight:600;height:32px;background-color:var(--bg-primary);color:var(--text-primary)}.qty-input:focus{outline:none;background-color:var(--bg-tertiary)}.qty-input::-webkit-inner-spin-button,.qty-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.qty-input[type=number]{-moz-appearance:textfield}.quantity-selector-large{margin-bottom:var(--spacing-md)}.quantity-selector-large label{display:block;font-weight:600;margin-bottom:var(--spacing-sm);color:var(--text-primary)}.quantity-controls{display:flex;align-items:center;border:2px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;background-color:var(--bg-primary);width:fit-content}.quantity-controls .qty-btn{min-width:40px;height:44px;font-size:var(--font-size-xl)}.qty-input-large{width:60px;text-align:center;border:none;border-left:2px solid var(--border-color);border-right:2px solid var(--border-color);padding:8px;font-size:var(--font-size-lg);font-weight:600;height:44px;background-color:var(--bg-primary);color:var(--text-primary)}.qty-input-large:focus{outline:none;background-color:var(--bg-tertiary)}.qty-input-large::-webkit-inner-spin-button,.qty-input-large::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.qty-input-large[type=number]{-moz-appearance:textfield}.product-list-container{min-height:100vh;background-color:var(--bg-secondary)}.product-list-header{background-color:var(--bg-primary);padding:var(--spacing-xl) 0;box-shadow:var(--shadow-sm);margin-bottom:var(--spacing-xl)}.product-list-header h1{margin:0;color:var(--text-primary)}.product-list-header p{margin:var(--spacing-sm) 0 0 0;color:var(--text-secondary)}.product-grid{display:grid;grid-template-columns:repeat(1,1fr);gap:var(--spacing-lg);padding:var(--spacing-md) 0}@media(min-width:576px){.product-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:992px){.product-grid{grid-template-columns:repeat(3,1fr)}}@media(min-width:1200px){.product-grid{grid-template-columns:repeat(4,1fr)}}.empty-state{text-align:center;padding:var(--spacing-2xl);color:var(--text-secondary)}.empty-state-icon{width:64px;height:64px;margin:0 auto var(--spacing-md);color:var(--text-light)}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:var(--bg-secondary);padding:var(--spacing-md)}.login-card{background-color:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:var(--spacing-2xl);width:100%;max-width:400px}.login-title{text-align:center;margin-bottom:var(--spacing-sm);color:var(--text-primary)}.login-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:var(--spacing-xl)}.login-error{background-color:#fee2e2;color:#991b1b;padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md);font-size:var(--font-size-sm)}.login-form{margin-bottom:var(--spacing-lg)}.form-group{margin-bottom:var(--spacing-md)}.form-group label{display:block;margin-bottom:var(--spacing-xs);color:var(--text-primary);font-weight:500;font-size:var(--font-size-sm)}.form-group 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var(--spacing-md)}.error-title{color:var(--text-primary);margin-bottom:var(--spacing-sm);font-size:var(--font-size-xl)}.error-text{color:var(--text-secondary);margin-bottom:var(--spacing-lg);font-size:var(--font-size-base)}.error-retry-btn{background-color:var(--primary-color);color:#fff;padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);font-weight:500;transition:background-color var(--transition-base)}.error-retry-btn:hover{background-color:var(--primary-hover)}.loading-container{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:300px;padding:var(--spacing-xl)}.loading-spinner{margin-bottom:var(--spacing-md)}.spinner{width:48px;height:48px;border:4px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes 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1fr}}.product-detail-image-container{width:100%;padding-top:100%;position:relative;background-color:var(--bg-tertiary);overflow:hidden}.product-detail-image{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}.product-detail-image-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--text-light);background-color:var(--bg-tertiary)}.product-detail-info{padding:var(--spacing-xl);display:flex;flex-direction:column;gap:var(--spacing-lg)}.product-detail-name{font-size:var(--font-size-2xl);font-weight:700;color:var(--text-primary);margin:0;line-height:1.2}.product-detail-price{font-size:var(--font-size-3xl);font-weight:700;color:var(--primary-color);padding:var(--spacing-md) 0;border-bottom:1px solid var(--border-color)}.product-detail-description{color:var(--text-primary)}.product-detail-description h2{font-size:var(--font-size-lg);font-weight:600;color:var(--text-primary);margin:0 0 var(--spacing-md) 0}.product-detail-description p{font-size:var(--font-size-base);color:var(--text-secondary);line-height:1.6;margin:0;white-space:pre-wrap}.product-detail-meta{font-size:var(--font-size-base);color:var(--text-secondary);padding:var(--spacing-sm) 0}.product-detail-meta strong{color:var(--text-primary);margin-right:var(--spacing-sm)}.in-stock{color:var(--success-color);margin-left:var(--spacing-xs);font-weight:500}.out-of-stock{color:var(--error-color);margin-left:var(--spacing-xs);font-weight:500}.product-detail-actions{display:flex;gap:var(--spacing-md);margin-top:auto;padding-top:var(--spacing-lg)}.btn{padding:var(--spacing-md) var(--spacing-xl);border:none;border-radius:var(--radius-md);font-size:var(--font-size-base);font-weight:600;cursor:pointer;transition:all var(--transition-base);text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-hover)}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background-color:var(--bg-secondary)}.header{background-color:var(--bg-primary);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:1000;padding:var(--spacing-md) 0}.header-content{display:flex;align-items:center;justify-content:space-between}.header-logo{display:flex;align-items:center;gap:var(--spacing-sm);text-decoration:none;color:var(--text-primary);font-weight:700;font-size:var(--font-size-lg);transition:color 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var(--transition-base)}.header-cart-link:hover,.header-cart-link.active{color:var(--primary-color);background-color:var(--bg-secondary)}.header-cart-icon{width:24px;height:24px}.header-cart-badge{position:absolute;top:0;right:0;background-color:var(--primary-color);color:#fff;font-size:11px;font-weight:700;padding:2px 6px;border-radius:10px;min-width:18px;text-align:center}.cart-container{min-height:100vh;background-color:var(--bg-secondary);padding:var(--spacing-xl) 0}.cart-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-xl);gap:var(--spacing-md);flex-wrap:wrap}.cart-header h1{margin:0;color:var(--text-primary)}.cart-header-actions{display:flex;align-items:center;gap:var(--spacing-md);flex-wrap:wrap}.cart-continue-shopping{color:var(--primary-color);text-decoration:none;font-weight:500;transition:color var(--transition-base);white-space:nowrap}.cart-continue-shopping:hover{color:var(--primary-hover);text-decoration:underline}.cart-empty{text-align:center;padding:var(--spacing-2xl);background-color:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.cart-empty-icon{color:var(--text-light);margin-bottom:var(--spacing-lg)}.cart-empty h2{color:var(--text-primary);margin-bottom:var(--spacing-sm)}.cart-empty p{color:var(--text-secondary);margin-bottom:var(--spacing-xl)}.cart-content{display:grid;grid-template-columns:1fr;gap:var(--spacing-xl)}@media(min-width:992px){.cart-content{grid-template-columns:2fr 1fr}}.cart-items{display:flex;flex-direction:column;gap:var(--spacing-md)}.cart-actions{display:flex;gap:var(--spacing-md);justify-content:center;margin-top:var(--spacing-lg)}.cart-item{background-color:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--spacing-md);display:grid;grid-template-columns:100px 1fr auto;gap:var(--spacing-md);align-items:center}@media(max-width:576px){.cart-item{grid-template-columns:80px 1fr}.cart-item-total{grid-column:1 / -1;justify-content:flex-end;padding-top:var(--spacing-sm);border-top:1px solid var(--border-color);margin-top:var(--spacing-sm)}}.cart-item-image-container{width:100px;height:100px;border-radius:var(--radius-md);overflow:hidden;background-color:var(--bg-tertiary);display:flex;align-items:center;justify-content:center}@media(max-width:576px){.cart-item-image-container{width:80px;height:80px}}.cart-item-image{width:100%;height:100%;object-fit:cover}.cart-item-image-placeholder{color:var(--text-light)}.cart-item-details{flex:1}.cart-item-name{font-size:var(--font-size-base);font-weight:600;color:var(--text-primary);margin:0 0 var(--spacing-xs) 0}.cart-item-description{font-size:var(--font-size-sm);color:var(--text-secondary);margin:0 0 var(--spacing-sm) 0}.cart-item-meta{display:flex;align-items:center;gap:var(--spacing-sm);font-size:var(--font-size-sm)}.cart-item-price{color:var(--text-primary);font-weight:600}.cart-item-separator{color:var(--text-light)}.cart-item-quantity{color:var(--text-secondary)}.cart-item-quantity-controls{display:flex;align-items:center;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.quantity-button{width:32px;height:32px;border:1px solid var(--border-color);background-color:var(--bg-primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-base);padding:0;color:var(--text-primary)}.quantity-button:hover:not(:disabled){background-color:var(--bg-secondary);border-color:var(--primary-color);color:var(--primary-color)}.quantity-button:active:not(:disabled){transform:scale(.95)}.quantity-button:disabled{opacity:.4;cursor:not-allowed}.quantity-button:focus{outline:2px solid var(--primary-color);outline-offset:2px}.quantity-input{width:60px;height:32px;text-align:center;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:var(--font-size-base);font-weight:600;color:var(--text-primary);background-color:var(--bg-primary);transition:all var(--transition-base);padding:0 var(--spacing-xs)}.quantity-input:focus{outline:2px solid var(--primary-color);outline-offset:0;border-color:var(--primary-color)}.quantity-input:disabled{opacity:.6;cursor:not-allowed;background-color:var(--bg-tertiary)}.quantity-input::-webkit-outer-spin-button,.quantity-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.quantity-input[type=number]{-moz-appearance:textfield}.cart-item-remove-button{margin-left:var(--spacing-sm);width:32px;height:32px;border:1px solid #fee2e2;background-color:#fef2f2;color:#dc2626;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-base);padding:0}.cart-item-remove-button:hover:not(:disabled){background-color:#fecaca;border-color:#dc2626;color:#991b1b}.cart-item-remove-button:active:not(:disabled){transform:scale(.95)}.cart-item-remove-button:disabled{opacity:.4;cursor:not-allowed}.cart-item-remove-button:focus{outline:2px solid #dc2626;outline-offset:2px}.cart-item-total{display:flex;flex-direction:column;align-items:flex-end;gap:var(--spacing-xs)}.cart-item-total-label{font-size:var(--font-size-sm);color:var(--text-secondary)}.cart-item-total-price{font-size:var(--font-size-lg);font-weight:700;color:var(--primary-color)}.btn-clear-cart{font-size:var(--font-size-sm);padding:var(--spacing-xs) var(--spacing-md);border:1px solid 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