:root{--primary-color: #1976d2;--success-color: #4caf50;--warning-color: #ff9800;--error-color: #f44336;--bg-color: #f5f5f5;--text-color: #333;--card-bg: #ffffff}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.5;overscroll-behavior-y:none}input,button{font-family:inherit;font-size:1rem}button{cursor:pointer;border:none;border-radius:4px;padding:12px 24px;font-weight:600;transition:opacity .2s}button:active{opacity:.8}.container{max-width:800px;margin:0 auto;padding:16px;min-height:100vh;display:flex;flex-direction:column}.header{background-color:var(--primary-color);color:#fff;padding:16px;position:sticky;top:0;z-index:100;box-shadow:0 2px 4px #0000001a;display:flex;justify-content:space-between;align-items:center}.stats{font-size:.9rem}.card{background:var(--card-bg);border-radius:8px;padding:16px;margin-bottom:16px;box-shadow:0 1px 3px #0000001a}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:8px;font-weight:500}.form-group input{width:100%;padding:12px;border:1px solid #ddd;border-radius:4px;font-size:1.1rem}.btn-primary{background-color:var(--primary-color);color:#fff;width:100%}.btn-success{background-color:var(--success-color);color:#fff}.btn-danger{background-color:var(--error-color);color:#fff}.nav-bar{position:fixed;bottom:0;left:0;right:0;background:#fff;display:flex;justify-content:space-around;padding:12px;box-shadow:0 -2px 4px #0000001a;z-index:100}.nav-btn{background:none;color:#666;padding:8px;display:flex;flex-direction:column;align-items:center;font-size:.8rem}.nav-btn.active{color:var(--primary-color)}.view-content{padding-bottom:80px;flex:1}.product-display{text-align:center;margin:20px 0}.product-ref{font-size:1.2rem;color:#666}.product-name{font-size:1.5rem;font-weight:700;margin:8px 0}.product-price{font-size:1.8rem;color:var(--success-color);font-weight:700}.quantity-input{font-size:3rem!important;text-align:center;font-weight:700;height:80px;margin:20px 0}.last-scan{margin-top:20px;padding:10px;background:#f0f0f0;border-radius:4px;font-size:.9rem}.scan-status{text-align:center;padding:10px;margin-bottom:10px;border-radius:4px;font-weight:700}.scan-status.success{background:#e8f5e9;color:var(--success-color)}.scan-status.warning{background:#fff3e0;color:var(--warning-color)}.scan-status.error{background:#ffebee;color:var(--error-color)}.delete-btn{background-color:#ff5252;color:#fff;padding:6px 12px;font-size:.9rem;border-radius:4px;transition:background-color .2s}.delete-btn:hover{background-color:#d32f2f}.list{list-style:none;padding:0;margin-top:16px;border:1px solid #eee;border-radius:8px;overflow:hidden}.list li{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid #eee;background:#fff;transition:background-color .2s}.list li:last-child{border-bottom:none}.list li:hover{background-color:#f9f9f9}.add-form{display:flex;gap:10px;margin-bottom:20px;background:#f8f9fa;padding:16px;border-radius:8px}.column-form{flex-direction:column}.role-badge,.store-badge,.catalog-badge{display:inline-flex;align-items:center;font-size:.75rem;padding:4px 8px;border-radius:12px;font-weight:600;margin-left:8px;box-shadow:0 1px 2px #0000001a}.tabs{display:flex;gap:10px;margin-bottom:20px;overflow-x:auto;padding-bottom:5px}.tabs button{flex:1;white-space:nowrap;background:#e0e0e0;color:#333;border-radius:20px;padding:10px 20px;border:none;font-weight:500}.tabs button.active{background:var(--primary-color);color:#fff;box-shadow:0 2px 4px #0003}@media(max-width:768px){.container{padding:8px}.card{padding:12px}.header{padding:10px;font-size:.8rem;position:relative;min-height:80px}.header .stats{width:100%;padding-right:110px;margin-top:0;order:0}.header-actions{justify-content:space-between!important}.header-actions button{flex:1;padding:10px 5px!important;font-size:.85rem!important;white-space:nowrap}.user-actions{position:absolute;top:10px;right:10px;margin:0;text-align:right;align-items:flex-end;z-index:10}.product-name{font-size:1.25rem}.product-price{font-size:1.5rem}.quantity-input{font-size:2rem!important;height:50px;margin:10px auto;width:150px!important;max-width:50%}.add-form{flex-direction:column}.tabs{gap:5px}.tabs button{padding:8px 12px;font-size:.9rem}.monitoring-view .btn-primary{font-size:.8rem!important;padding:8px!important}.list li{flex-direction:column;align-items:flex-start;gap:10px}.list li>div{width:100%;display:flex;justify-content:space-between;align-items:center}.monitoring-view{overflow-x:auto}table{min-width:600px}}