*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;padding:20px}#app{max-width:1200px;margin:0 auto}.header{text-align:center;color:#fff;margin-bottom:40px;padding:30px;background:#ffffff1a;border-radius:15px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header h1{font-size:2.5rem;margin-bottom:10px}.header p{font-size:1.2rem;opacity:.9}.container{display:grid;gap:30px}.card{background:#fff;border-radius:15px;padding:30px;box-shadow:0 10px 30px #0003}.card h2{color:#667eea;margin-bottom:20px;font-size:1.5rem}.health-info{margin-top:20px;padding:15px;background:#f8f9fa;border-radius:8px}.health-info p{margin:8px 0}.connected{color:#28a745;font-weight:700}.disconnected{color:#dc3545;font-weight:700}.form-group{margin-bottom:15px}.form-group label{display:block;margin-bottom:5px;font-weight:600;color:#333}.form-group input{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s}.form-group input:focus{outline:none;border-color:#667eea}.btn{padding:12px 24px;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s;margin-right:10px}.btn-primary{background:#667eea;color:#fff}.btn-primary:hover{background:#5568d3;transform:translateY(-2px)}.btn-secondary{background:#6c757d;color:#fff}.btn-secondary:hover{background:#5a6268}.btn-success{background:#28a745;color:#fff}.btn-success:hover{background:#218838}.btn-danger{background:#dc3545;color:#fff}.btn-danger:hover{background:#c82333}.btn-sm{padding:8px 16px;font-size:.9rem}.message{margin-top:15px;padding:12px;border-radius:8px;font-weight:500}.message.success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.message.error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.actions{margin-bottom:20px}.stats{background:#e3f2fd;padding:15px;border-radius:8px;margin-bottom:20px}.stats p{margin:5px 0;font-weight:500}.loading{text-align:center;padding:40px;font-size:1.2rem;color:#667eea}.users-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-top:20px}.user-card{background:#f8f9fa;padding:20px;border-radius:10px;border-left:4px solid #667eea}.user-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.user-header h3{color:#333;font-size:1.2rem}.user-id{background:#667eea;color:#fff;padding:4px 10px;border-radius:15px;font-size:.85rem}.user-card p{margin:8px 0;color:#555}.user-date{font-size:.9rem;color:#888}.user-actions{margin-top:15px}.no-data{text-align:center;padding:40px;color:#888;font-size:1.1rem}.counter-display{text-align:center;padding:30px}.counter-value{font-size:4rem;font-weight:700;color:#667eea;margin-bottom:20px}@media (max-width: 768px){.header h1{font-size:1.8rem}.users-grid{grid-template-columns:1fr}.btn{width:100%;margin:5px 0}}