:root{--bg: #0f1117;--surface: #1a1d27;--surface-hover: #242836;--border: #2a2e3a;--text: #e8eaed;--text-muted: #8b8fa3;--primary: #6c5ce7;--primary-hover: #7f70f0;--success: #00b894;--warning: #fdcb6e;--danger: #e17055;--radius: 12px;--radius-sm: 8px}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}body{overflow-x:hidden}a{color:var(--primary);text-decoration:none}button{cursor:pointer;border:none;font-family:inherit;font-size:inherit}input,select,textarea{font-family:inherit;font-size:inherit}.app{display:flex;flex-direction:column;min-height:100%;max-width:480px;margin:0 auto;position:relative}.page{flex:1;padding:16px 16px 80px}.page-header{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding:4px 0}.page-header h1{font-size:1.5rem;font-weight:700}.back-btn{background:var(--surface);color:var(--text);width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;background:var(--surface);border-top:1px solid var(--border);display:flex;justify-content:space-around;padding:8px 0;z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;background:none;color:var(--text-muted);font-size:.7rem;padding:4px 12px;border-radius:var(--radius-sm);transition:color .15s}.nav-item.active{color:var(--primary)}.nav-item .icon{font-size:1.3rem}.card{background:var(--surface);border-radius:var(--radius);padding:16px;border:1px solid var(--border)}.item-card{display:flex;gap:12px;align-items:center;padding:12px 16px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);margin-bottom:8px;transition:background .15s}.item-card:active{background:var(--surface-hover)}.item-card .item-icon{font-size:2rem;width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--bg);flex-shrink:0}.item-card .item-info{flex:1;min-width:0}.item-card .item-name{font-weight:600;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.item-card .item-location{font-size:.8rem;color:var(--text-muted);margin-top:2px}.item-card .expiry-badge{padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600;white-space:nowrap;flex-shrink:0}.expiry-badge.fresh{background:#00b89426;color:var(--success)}.expiry-badge.expiring-soon{background:#fdcb6e26;color:var(--warning)}.expiry-badge.expired{background:#e1705526;color:var(--danger)}.fab{position:fixed;bottom:76px;right:max(16px,calc(50% - 210px));width:56px;height:56px;border-radius:50%;background:var(--primary);color:#fff;font-size:1.8rem;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px #6c5ce766;transition:transform .15s,background .15s;z-index:99}.fab:active{transform:scale(.92);background:var(--primary-hover)}.btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:var(--radius);font-weight:600;font-size:.95rem;transition:background .15s,transform .1s;width:100%}.btn:active{transform:scale(.97)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-danger{background:#e1705526;color:var(--danger)}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:.85rem;font-weight:600;color:var(--text-muted);margin-bottom:6px}.form-group input,.form-group select{width:100%;padding:12px 14px;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);outline:none;transition:border-color .15s}.form-group input:focus,.form-group select:focus{border-color:var(--primary)}.camera-container{position:relative;width:100%;aspect-ratio:4/3;background:#000;border-radius:var(--radius);overflow:hidden;margin-bottom:16px}.camera-container video{width:100%;height:100%;object-fit:cover}.camera-container .roi-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:80%;height:30%;border:2px dashed var(--primary);border-radius:var(--radius-sm);pointer-events:none}.camera-container .roi-overlay.barcode{height:20%}.camera-controls{display:flex;gap:12px;margin-bottom:16px}.camera-controls button{flex:1}.location-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.location-option{display:flex;flex-direction:column;align-items:center;gap:6px;padding:16px;background:var(--surface);border:2px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:.85rem;font-weight:500;transition:border-color .15s}.location-option .loc-icon{font-size:1.8rem}.location-option.selected{border-color:var(--primary);background:#6c5ce71a}.section-title{font-size:.85rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.status-banner{padding:12px 16px;border-radius:var(--radius);margin-bottom:12px;font-size:.9rem}.status-banner.info{background:#6c5ce71a;color:var(--primary);border:1px solid rgba(108,92,231,.2)}.status-banner.success{background:#00b8941a;color:var(--success);border:1px solid rgba(0,184,148,.2)}.status-banner.warning{background:#fdcb6e1a;color:var(--warning);border:1px solid rgba(253,203,110,.2)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:60px 20px;color:var(--text-muted);text-align:center}.empty-state .empty-icon{font-size:3rem}.empty-state h3{font-size:1.1rem;color:var(--text)}.spinner{display:inline-block;width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-overlay{position:fixed;inset:0;background:#0f1117d9;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;z-index:200;color:var(--text)}.settings-item{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--border)}.settings-item:last-child{border-bottom:none}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:20px}.stat-card{display:flex;flex-direction:column;align-items:center;padding:12px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}.stat-card .stat-num{font-size:1.5rem;font-weight:700}.stat-card .stat-label{font-size:.7rem;color:var(--text-muted);margin-top:2px}.stat-card.fresh .stat-num{color:var(--success)}.stat-card.warning .stat-num{color:var(--warning)}.stat-card.danger .stat-num{color:var(--danger)}.delete-btn{background:none;color:var(--text-muted);font-size:1.1rem;padding:4px 8px;border-radius:4px}.delete-btn:hover{color:var(--danger)}.filter-tabs{display:flex;gap:8px;margin-bottom:16px;overflow-x:auto}.filter-tab{padding:8px 14px;border-radius:20px;font-size:.8rem;font-weight:600;white-space:nowrap;background:var(--surface);color:var(--text-muted);border:1px solid var(--border);transition:all .15s}.filter-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.confidence-bar{height:4px;border-radius:2px;background:var(--border);margin-top:4px}.confidence-bar .fill{height:100%;border-radius:2px;transition:width .3s}.confidence-bar .fill.high{background:var(--success)}.confidence-bar .fill.medium{background:var(--warning)}.confidence-bar .fill.low{background:var(--danger)}