:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.app{max-width:800px;margin:0 auto;padding:20px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}h1{color:#333}.config{background:#fff;padding:20px;border-radius:8px;margin-bottom:20px}.config label{display:block;margin-bottom:10px;text-align:left}.config input{width:100%;padding:8px;margin-bottom:10px;border:1px solid #ddd;border-radius:4px}button{background:#007bff;color:#fff;border:none;padding:10px 20px;border-radius:4px;cursor:pointer;margin-right:10px}button:hover{background:#0056b3}button:disabled{background:#ccc;cursor:not-allowed}.disconnect-btn{background:#dc3545}.disconnect-btn:hover{background:#c82333}.chat{background:#fff;padding:20px;border-radius:8px}.messages{height:400px;overflow-y:auto;border-radius:8px;padding:20px;margin-bottom:20px;border:1px solid #ddd;text-align:left}.messages div{padding:8px;margin-bottom:8px;border-radius:4px}.messages .message{background:#e9ecef}.messages .join{background:#d4edda;color:#155724}.messages .leave,.messages .error{background:#f8d7da;color:#721c24}.messages .own{background:#007bff;color:#fff}.input-group{display:flex;gap:10px}.input-group input{flex:1;padding:10px;border:1px solid #ddd;border-radius:4px}