:root{--primary-bg: #0f0f1a;--secondary-bg: #1a1a2e;--card-bg: #16213e;--accent: #0f3460;--accent-light: #1a4a7a;--highlight: #e94560;--highlight-hover: #ff5a75;--text-primary: #ffffff;--text-secondary: #a0a0a0;--text-muted: #6c6c6c;--border-color: #2a2a4a;--success: #4ade80;--warning: #fbbf24;--danger: #ef4444;--gradient-primary: linear-gradient(135deg, #0f3460 0%, #16213e 100%);--gradient-highlight: linear-gradient(135deg, #e94560 0%, #ff5a75 100%);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--transition: all .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:var(--primary-bg);color:var(--text-primary);line-height:1.6;min-height:100vh}a{color:inherit;text-decoration:none}.container{max-width:1400px;margin:0 auto;padding:0 24px}.header{background:var(--secondary-bg);border-bottom:1px solid var(--border-color);padding:16px 0;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:12px;font-size:1.5rem;font-weight:700;color:var(--text-primary);transition:var(--transition)}.logo:hover{color:var(--highlight)}.logo-icon{width:40px;height:40px;background:var(--gradient-highlight);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.25rem}.nav{display:flex;gap:24px;align-items:center}.nav-link{color:var(--text-secondary);font-weight:500;transition:var(--transition);padding:8px 16px;border-radius:var(--radius-sm)}.nav-link:hover{color:var(--text-primary);background:var(--accent)}.hero{background:var(--gradient-primary);padding:80px 0;text-align:center;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;right:-50%;width:100%;height:200%;background:radial-gradient(circle,rgba(233,69,96,.1) 0%,transparent 70%);animation:pulse 15s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);opacity:.5}50%{transform:scale(1.2);opacity:.8}}.hero-content{position:relative;z-index:1}.hero h1{font-size:3.5rem;font-weight:800;margin-bottom:16px;background:linear-gradient(135deg,var(--text-primary) 0%,var(--highlight) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:1.25rem;color:var(--text-secondary);max-width:600px;margin:0 auto}.section{padding:60px 0}.section-title{font-size:2rem;font-weight:700;margin-bottom:32px;display:flex;align-items:center;gap:12px}.section-title:after{content:"";flex:1;height:2px;background:var(--border-color)}.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}.category-card{background:var(--card-bg);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-color);transition:var(--transition);cursor:pointer}.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent-light)}.category-image{width:100%;height:220px;object-fit:contain;background:var(--secondary-bg);padding:16px}.category-image-placeholder{width:100%;height:200px;background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;font-size:4rem;color:var(--text-secondary)}.category-content{padding:20px}.category-name{font-size:1.25rem;font-weight:600;margin-bottom:8px}.category-description{color:var(--text-secondary);font-size:.9rem;margin-bottom:12px}.category-count{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:var(--text-primary);padding:6px 12px;border-radius:20px;font-size:.85rem;font-weight:500}.item-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}.item-card{background:var(--card-bg);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-color);transition:var(--transition)}.item-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--highlight)}.item-image{width:100%;height:280px;object-fit:contain;background:var(--secondary-bg);padding:16px}.item-image-placeholder{width:100%;height:220px;background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;font-size:3rem;color:var(--text-secondary)}.item-content{padding:20px}.item-name{font-size:1.1rem;font-weight:600;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.item-price{font-size:1.5rem;font-weight:700;color:var(--highlight);margin-bottom:8px}.item-upc{color:var(--text-muted);font-size:.8rem;font-family:monospace}.item-detail{padding:40px 0}.item-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}.item-gallery{display:flex;flex-direction:column;gap:16px}.item-main-image{width:100%;max-height:500px;height:auto;object-fit:contain;border-radius:var(--radius-lg);background:var(--card-bg);padding:16px}.item-thumbnails{display:flex;gap:12px;flex-wrap:wrap}.item-thumbnail{width:80px;height:80px;object-fit:cover;border-radius:var(--radius-sm);cursor:pointer;border:2px solid transparent;transition:var(--transition)}.item-thumbnail:hover,.item-thumbnail.active{border-color:var(--highlight)}.item-info h1{font-size:2rem;font-weight:700;margin-bottom:16px}.item-detail-price{font-size:2.5rem;font-weight:800;color:var(--highlight);margin-bottom:24px}.item-detail-description{color:var(--text-secondary);line-height:1.8;margin-bottom:24px}.item-meta{background:var(--card-bg);padding:20px;border-radius:var(--radius-md);border:1px solid var(--border-color)}.item-meta-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border-color)}.item-meta-row:last-child{border-bottom:none}.item-meta-label{color:var(--text-secondary);font-weight:500}.item-meta-value{font-weight:600;font-family:monospace}.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:24px;color:var(--text-secondary)}.breadcrumb a{color:var(--text-secondary);transition:var(--transition)}.breadcrumb a:hover{color:var(--highlight)}.breadcrumb-separator{color:var(--text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;cursor:pointer;border:none;transition:var(--transition)}.btn-primary{background:var(--gradient-highlight);color:#fff}.btn-primary:hover{opacity:.9;transform:translateY(-2px)}.btn-secondary{background:var(--accent);color:var(--text-primary)}.btn-secondary:hover{background:var(--accent-light)}.back-btn{display:inline-flex;align-items:center;gap:8px;color:var(--text-secondary);font-weight:500;margin-bottom:24px;transition:var(--transition)}.back-btn:hover{color:var(--highlight)}.empty-state{text-align:center;padding:80px 20px;color:var(--text-secondary)}.empty-state-icon{font-size:4rem;margin-bottom:16px}.empty-state h3{font-size:1.5rem;margin-bottom:8px;color:var(--text-primary)}.footer{background:var(--secondary-bg);border-top:1px solid var(--border-color);padding:32px 0;text-align:center;color:var(--text-secondary);margin-top:auto}.loading{display:flex;justify-content:center;align-items:center;padding:60px}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--highlight);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.admin-layout{display:flex;min-height:100vh}.admin-sidebar{width:250px;background:var(--secondary-bg);border-right:1px solid var(--border-color);padding:24px;position:fixed;height:100vh;overflow-y:auto}.admin-sidebar h2{font-size:1.25rem;margin-bottom:32px;color:var(--highlight)}.admin-nav{display:flex;flex-direction:column;gap:8px}.admin-nav-link{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius-sm);color:var(--text-secondary);transition:var(--transition)}.admin-nav-link:hover,.admin-nav-link.active{background:var(--accent);color:var(--text-primary)}.admin-main{flex:1;margin-left:250px;padding:32px}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.admin-header h1{font-size:1.75rem;font-weight:700}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-secondary)}.form-input,.form-textarea,.form-select{width:100%;padding:12px 16px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:1rem;transition:var(--transition)}.form-input:focus,.form-textarea:focus,.form-select:focus{outline:none;border-color:var(--highlight)}.form-textarea{min-height:120px;resize:vertical}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--gradient-primary)}.login-card{background:var(--secondary-bg);padding:48px;border-radius:var(--radius-lg);width:100%;max-width:400px;box-shadow:var(--shadow-lg);border:1px solid var(--border-color)}.login-card h1{font-size:1.75rem;text-align:center;margin-bottom:32px}.login-error{background:#ef44441a;border:1px solid var(--danger);color:var(--danger);padding:12px;border-radius:var(--radius-sm);margin-bottom:20px;text-align:center}.admin-table{width:100%;background:var(--card-bg);border-radius:var(--radius-md);border:1px solid var(--border-color);overflow:hidden}.admin-table th,.admin-table td{padding:16px;text-align:left;border-bottom:1px solid var(--border-color)}.admin-table th{background:var(--accent);font-weight:600;color:var(--text-secondary)}.admin-table tr:last-child td{border-bottom:none}.admin-table tr:hover{background:#0f34604d}.admin-table-image{width:60px;height:60px;object-fit:cover;border-radius:var(--radius-sm)}.admin-actions{display:flex;gap:8px}.btn-icon{width:36px;height:36px;padding:0;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center}.btn-edit{background:var(--accent);color:var(--text-primary)}.btn-delete{background:#ef444433;color:var(--danger)}.btn-delete:hover{background:var(--danger);color:#fff}.modal-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{background:var(--secondary-bg);border-radius:var(--radius-lg);width:100%;max-width:600px;max-height:90vh;overflow-y:auto;border:1px solid var(--border-color)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--border-color)}.modal-header h2{font-size:1.25rem}.modal-close{background:none;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;transition:var(--transition)}.modal-close:hover{color:var(--highlight)}.modal-body{padding:24px}.modal-footer{display:flex;justify-content:flex-end;gap:12px;padding:20px 24px;border-top:1px solid var(--border-color)}.file-upload{border:2px dashed var(--border-color);border-radius:var(--radius-md);padding:32px;text-align:center;cursor:pointer;transition:var(--transition)}.file-upload:hover{border-color:var(--highlight);background:#e945600d}.file-upload input{display:none}.file-upload-icon{font-size:2rem;margin-bottom:12px;color:var(--text-secondary)}.file-upload-text{color:var(--text-secondary)}.image-preview-grid{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}.image-preview{position:relative;width:100px;height:100px}.image-preview img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-sm)}.image-preview-remove{position:absolute;top:-8px;right:-8px;width:24px;height:24px;background:var(--danger);color:#fff;border:none;border-radius:50%;font-size:.75rem;cursor:pointer;display:flex;align-items:center;justify-content:center}@media(max-width:1024px){.item-detail-grid{grid-template-columns:1fr}.admin-sidebar{width:200px}.admin-main{margin-left:200px}}@media(max-width:768px){.hero h1{font-size:2.5rem}.category-grid,.item-grid{grid-template-columns:1fr}.header-content{flex-direction:column;gap:16px}.admin-sidebar{display:none}.admin-main{margin-left:0}}