:root{--color-primary: #00997B;--color-primary-light: #77DBC6;--color-primary-ultralight: #D0F9F0;--color-primary-dark: #00B56F;--color-text-body: #1D1D1D;--color-text-secondary: #777777;--color-text-muted: #666666;--color-text-dark: #37474F;--color-success: #43D787;--color-warning: #F4E76E;--color-error: #E26D5C;--color-info: #0197F6;--color-white: #FFFFFF;--color-surface: #F1F3F4;--color-border: #BDC1C6}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:Barlow,system-ui,-apple-system,sans-serif;background-color:var(--color-surface);color:var(--color-text-body);min-height:100vh}#root{min-height:100vh;display:flex;align-items:flex-start;justify-content:center;padding:2rem 1rem}.app{width:100%;max-width:1100px}.app h1{margin:0 0 1.5rem;font-family:Barlow,system-ui,sans-serif;font-size:1.5rem;font-weight:700;text-align:center;color:var(--color-primary)}.card{background:var(--color-white);border-radius:8px;padding:1.25rem 1.5rem;margin-bottom:1rem;box-shadow:0 1px 3px #00000014}.card h2{margin:0 0 .75rem;font-size:1rem;font-weight:600;color:var(--color-primary)}.btn{display:inline-block;padding:.5rem 1rem;font-family:Barlow,system-ui,sans-serif;font-size:.9rem;font-weight:600;color:var(--color-white);background-color:var(--color-primary);border:none;border-radius:6px;cursor:pointer;transition:background-color .15s}.btn:hover{background-color:var(--color-primary-dark)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{display:inline-block;padding:.5rem 1rem;font-family:Barlow,system-ui,sans-serif;font-size:.9rem;font-weight:600;color:var(--color-primary);background-color:transparent;border:1px solid var(--color-primary);border-radius:6px;cursor:pointer;transition:background-color .15s}.btn-secondary:hover{background-color:var(--color-primary-ultralight)}.input{width:100%;padding:.5rem .75rem;font-size:.95rem;font-family:Barlow,system-ui,sans-serif;border:1px solid var(--color-border);border-radius:6px;color:var(--color-text-body);background-color:var(--color-white);margin-bottom:.75rem;transition:border-color .15s}.input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #00997b1f}.input:disabled{background-color:var(--color-surface);color:var(--color-text-muted)}.message{font-size:.875rem;color:var(--color-text-muted);margin:.5rem 0 0}.message.error{color:var(--color-error)}.message.success{color:var(--color-success)}.status-badge{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .65rem;border-radius:6px;font-size:.875rem;font-weight:500}.status-badge.connected{background-color:var(--color-primary-ultralight);color:var(--color-primary)}.status-badge.disconnected{background-color:#fde8e4;color:#b94033}.status-dot{width:8px;height:8px;border-radius:50%;background:currentColor}nav{display:flex;gap:.25rem;margin-bottom:1rem;background-color:var(--color-primary);border-radius:6px;padding:.25rem .5rem}.nav-item{padding:.4rem 1.1rem;font-size:.9rem;font-family:Barlow,system-ui,sans-serif;font-weight:500;cursor:pointer;background:none;border:none;color:var(--color-white);border-bottom:2px solid transparent;border-radius:4px;transition:color .15s}.nav-item:hover{color:var(--color-primary-ultralight)}.nav-item.active{font-weight:700;border-bottom-color:var(--color-white)}.data-table{width:100%;border-collapse:collapse}.data-table th{background-color:var(--color-primary-ultralight);color:var(--color-text-dark);font-weight:600;text-align:left;padding:.5rem .6rem;border-bottom:2px solid var(--color-primary-light)}.data-table td{padding:.4rem .6rem;border-bottom:1px solid var(--color-border);color:var(--color-text-body)}.data-table tr.clickable{cursor:pointer}.data-table tr.clickable:hover td{background-color:var(--color-primary-ultralight)}.groups-list{list-style:none;margin:0;padding:0}.groups-list li{display:flex;align-items:center;gap:.5rem;padding:.4rem 0;border-bottom:1px solid var(--color-surface)}.groups-list li:last-child{border-bottom:none}.groups-list input[type=checkbox]{width:1rem;height:1rem;cursor:pointer}.groups-list label{flex:1;cursor:pointer;font-size:.95rem}.qr-container{display:flex;justify-content:center;padding:1rem 0}.qr-container img{max-width:100%;height:auto;border:1px solid var(--color-border);border-radius:6px}.groups-loading{display:flex;align-items:center;gap:.75rem;padding:.5rem 0}.groups-loading-spinner{display:inline-block;width:1.25rem;height:1.25rem;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:groups-spin .7s linear infinite}@keyframes groups-spin{to{transform:rotate(360deg)}}