:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-surface: rgba(255, 255, 255, .03);--bg-surface-hover: rgba(255, 255, 255, .06);--bg-glass: rgba(255, 255, 255, .04);--bg-glass-strong: rgba(255, 255, 255, .08);--text-primary: #f0f0f5;--text-secondary: #9898a8;--text-tertiary: #6b6b7b;--text-inverse: #0a0a0f;--accent-primary: #6c5ce7;--accent-primary-light: #a29bfe;--accent-secondary: #00cec9;--accent-warm: #fd79a8;--accent-amber: #fdcb6e;--accent-green: #00b894;--cat-electronics: #6c5ce7;--cat-clothing: #fd79a8;--cat-home: #fdcb6e;--cat-books: #00cec9;--cat-sports: #00b894;--border-subtle: rgba(255, 255, 255, .06);--border-medium: rgba(255, 255, 255, .1);--border-accent: rgba(108, 92, 231, .3);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(108, 92, 231, .15);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--text-4xl: 2.5rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--duration-fast: .15s;--duration-normal: .25s;--duration-slow: .4s;--max-width: 1400px;--header-height: 72px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse 80% 60% at 20% 10%,rgba(108,92,231,.08) 0%,transparent 60%),radial-gradient(ellipse 60% 50% at 80% 90%,rgba(0,206,201,.06) 0%,transparent 60%),radial-gradient(ellipse 40% 40% at 50% 50%,rgba(253,121,168,.04) 0%,transparent 50%);pointer-events:none;z-index:0}#root{position:relative;z-index:1}a{color:var(--accent-primary-light);text-decoration:none}button{font-family:var(--font-family);cursor:pointer;border:none;background:none;color:inherit}.app-container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}.header{position:sticky;top:0;z-index:100;background:#0a0a0fcc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-subtle);height:var(--header-height)}.header-inner{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg);height:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--space-lg)}.header-brand{display:flex;align-items:center;gap:var(--space-sm)}.header-logo{width:36px;height:36px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:var(--text-lg);font-weight:800;color:#fff;flex-shrink:0}.header-title{font-size:var(--text-xl);font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,var(--text-primary),var(--text-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-subtitle{font-size:var(--text-xs);color:var(--text-tertiary);font-weight:400;letter-spacing:.05em;text-transform:uppercase}.header-stats{display:flex;align-items:center;gap:var(--space-lg)}.stat-item{text-align:right}.stat-value{font-size:var(--text-lg);font-weight:700;color:var(--accent-primary-light);font-variant-numeric:tabular-nums}.stat-label{font-size:var(--text-xs);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em}.toolbar{position:sticky;top:var(--header-height);z-index:90;background:#0a0a0fbf;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-subtle);padding:var(--space-md) 0}.toolbar-inner{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg);display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);flex-wrap:wrap}.toolbar-left{display:flex;align-items:center;gap:var(--space-sm);flex-wrap:wrap}.toolbar-right{display:flex;align-items:center;gap:var(--space-sm)}.category-pill{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:500;border:1px solid var(--border-subtle);background:var(--bg-glass);color:var(--text-secondary);transition:all var(--duration-normal) var(--ease-out);white-space:nowrap;text-transform:capitalize}.category-pill:hover{background:var(--bg-glass-strong);border-color:var(--border-medium);color:var(--text-primary);transform:translateY(-1px)}.category-pill.active{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff;box-shadow:0 0 16px #6c5ce74d}.category-pill .pill-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.category-pill .pill-count{font-size:var(--text-xs);opacity:.7;font-variant-numeric:tabular-nums}.sort-selector{position:relative}.sort-button{display:flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:500;border:1px solid var(--border-subtle);background:var(--bg-glass);color:var(--text-secondary);transition:all var(--duration-normal) var(--ease-out)}.sort-button:hover{background:var(--bg-glass-strong);border-color:var(--border-medium);color:var(--text-primary)}.sort-button .sort-icon{font-size:var(--text-base)}.sort-dropdown{position:absolute;top:calc(100% + var(--space-xs));right:0;background:var(--bg-secondary);border:1px solid var(--border-medium);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);overflow:hidden;min-width:200px;z-index:100;animation:dropdownIn var(--duration-fast) var(--ease-out)}@keyframes dropdownIn{0%{opacity:0;transform:translateY(-8px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.sort-option{display:flex;align-items:center;gap:var(--space-sm);width:100%;padding:var(--space-sm) var(--space-md);font-size:var(--text-sm);color:var(--text-secondary);transition:all var(--duration-fast);text-align:left}.sort-option:hover{background:var(--bg-glass-strong);color:var(--text-primary)}.sort-option.active{color:var(--accent-primary-light);background:#6c5ce71a}.sort-option .check-icon{width:16px;text-align:center;flex-shrink:0}.view-toggle{display:flex;border:1px solid var(--border-subtle);border-radius:var(--radius-sm);overflow:hidden}.view-toggle-btn{padding:var(--space-xs) var(--space-sm);font-size:var(--text-base);color:var(--text-tertiary);transition:all var(--duration-fast);display:flex;align-items:center}.view-toggle-btn:hover{color:var(--text-primary);background:var(--bg-glass)}.view-toggle-btn.active{background:var(--accent-primary);color:#fff}.product-section{padding:var(--space-xl) 0 var(--space-3xl)}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg)}.product-grid.list-view{grid-template-columns:1fr;gap:var(--space-md)}.product-card{position:relative;background:var(--bg-glass);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-lg);transition:all var(--duration-normal) var(--ease-out);overflow:hidden;cursor:default}.product-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--card-accent, var(--accent-primary)),transparent);opacity:0;transition:opacity var(--duration-normal)}.product-card:hover{background:var(--bg-surface-hover);border-color:var(--border-medium);transform:translateY(-4px);box-shadow:var(--shadow-lg),var(--shadow-glow)}.product-card:hover:before{opacity:1}.product-card[data-category=electronics]{--card-accent: var(--cat-electronics)}.product-card[data-category=clothing]{--card-accent: var(--cat-clothing)}.product-card[data-category=home]{--card-accent: var(--cat-home)}.product-card[data-category=books]{--card-accent: var(--cat-books)}.product-card[data-category=sports]{--card-accent: var(--cat-sports)}.product-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-md);gap:var(--space-sm)}.product-id{font-size:var(--text-xs);color:var(--text-tertiary);font-family:var(--font-mono);font-variant-numeric:tabular-nums}.product-name{font-size:var(--text-base);font-weight:600;color:var(--text-primary);line-height:1.4;margin-bottom:var(--space-sm);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-category-badge{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:500;text-transform:capitalize;letter-spacing:.02em}.product-category-badge[data-category=electronics]{background:#6c5ce726;color:var(--cat-electronics)}.product-category-badge[data-category=clothing]{background:#fd79a826;color:var(--cat-clothing)}.product-category-badge[data-category=home]{background:#fdcb6e26;color:var(--cat-home)}.product-category-badge[data-category=books]{background:#00cec926;color:var(--cat-books)}.product-category-badge[data-category=sports]{background:#00b89426;color:var(--cat-sports)}.product-footer{display:flex;justify-content:space-between;align-items:flex-end;margin-top:var(--space-md);padding-top:var(--space-md);border-top:1px solid var(--border-subtle)}.product-price{font-size:var(--text-xl);font-weight:700;color:var(--accent-green);font-variant-numeric:tabular-nums}.product-price .currency{font-size:var(--text-sm);font-weight:400;color:var(--text-tertiary)}.product-date{font-size:var(--text-xs);color:var(--text-tertiary);text-align:right;line-height:1.4}.product-grid.list-view .product-card{display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;padding:var(--space-md) var(--space-lg);gap:0 var(--space-xl)}.product-grid.list-view .product-card-header{grid-column:1;margin-bottom:0}.product-grid.list-view .product-name{margin-bottom:0;-webkit-line-clamp:1}.product-grid.list-view .product-footer{grid-column:2;grid-row:1 / -1;border-top:none;margin-top:0;padding-top:0;flex-direction:column;align-items:flex-end;justify-content:center}.load-more-container{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);padding:var(--space-2xl) 0}.load-more-btn{display:inline-flex;align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-2xl);border-radius:var(--radius-full);font-size:var(--text-base);font-weight:600;background:linear-gradient(135deg,var(--accent-primary),#5a4bd1);color:#fff;border:none;transition:all var(--duration-normal) var(--ease-out);position:relative;overflow:hidden}.load-more-btn:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,rgba(255,255,255,.1),transparent);opacity:0;transition:opacity var(--duration-fast)}.load-more-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 24px #6c5ce766}.load-more-btn:hover:not(:disabled):before{opacity:1}.load-more-btn:active:not(:disabled){transform:translateY(0)}.load-more-btn:disabled{opacity:.5;cursor:not-allowed}.load-more-btn .spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.load-more-info{font-size:var(--text-sm);color:var(--text-tertiary);font-variant-numeric:tabular-nums}.end-message{font-size:var(--text-sm);color:var(--text-tertiary);display:flex;align-items:center;gap:var(--space-xs)}.skeleton-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg)}.skeleton-card{background:var(--bg-glass);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-lg);animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.skeleton-line{background:var(--bg-glass-strong);border-radius:var(--radius-sm);height:14px;margin-bottom:var(--space-sm)}.skeleton-line.short{width:40%}.skeleton-line.medium{width:70%}.skeleton-line.long{width:100%}.skeleton-line.price{width:30%;height:24px;margin-top:var(--space-md)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-3xl) var(--space-xl);text-align:center}.empty-icon{font-size:4rem;margin-bottom:var(--space-lg);opacity:.4}.empty-title{font-size:var(--text-xl);font-weight:600;color:var(--text-primary);margin-bottom:var(--space-sm)}.empty-message{font-size:var(--text-base);color:var(--text-tertiary);max-width:400px}.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-3xl) var(--space-xl);text-align:center}.error-icon{font-size:3rem;margin-bottom:var(--space-lg)}.error-title{font-size:var(--text-xl);font-weight:600;color:var(--accent-warm);margin-bottom:var(--space-sm)}.error-message{font-size:var(--text-base);color:var(--text-tertiary);max-width:500px;margin-bottom:var(--space-lg)}.error-retry-btn{padding:var(--space-sm) var(--space-xl);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:600;border:1px solid var(--accent-warm);color:var(--accent-warm);background:#fd79a81a;transition:all var(--duration-normal) var(--ease-out)}.error-retry-btn:hover{background:var(--accent-warm);color:var(--text-inverse)}.product-card{animation:cardIn var(--duration-slow) var(--ease-out) both}@keyframes cardIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}@media (max-width: 1024px){.product-grid,.skeleton-grid{grid-template-columns:repeat(3,1fr)}.header-stats{display:none}}@media (max-width: 768px){:root{--header-height: 64px}.product-grid,.skeleton-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-md)}.toolbar-inner{flex-direction:column;align-items:stretch;gap:var(--space-sm)}.toolbar-left{overflow-x:auto;padding-bottom:var(--space-xs);-webkit-overflow-scrolling:touch;scrollbar-width:none}.toolbar-left::-webkit-scrollbar{display:none}.toolbar-right{justify-content:flex-end}.header-title{font-size:var(--text-lg)}.header-subtitle{display:none}.product-grid.list-view .product-card{grid-template-columns:1fr;gap:var(--space-sm)}.product-grid.list-view .product-footer{grid-column:1;grid-row:auto;flex-direction:row;border-top:1px solid var(--border-subtle);padding-top:var(--space-sm);margin-top:var(--space-sm)}}@media (max-width: 480px){.product-grid,.skeleton-grid{grid-template-columns:1fr}.app-container,.header-inner,.toolbar-inner{padding:0 var(--space-md)}.product-card{padding:var(--space-md)}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}:focus-visible{outline:2px solid var(--accent-primary-light);outline-offset:2px;border-radius:var(--radius-sm)}.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}