:root{--bg:#0b1220;--panel:#131c2e;--panel2:#1b2740;--text:#e6ecf5;--muted:#8aa0c0;--accent:#5b8cff;--accent2:#2f6bff;--danger:#ff6b6b;--line:#25324d}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}#root{height:100vh}.screen{place-items:center;height:100vh;display:grid}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;flex-direction:column;gap:12px;width:360px;padding:28px;display:flex;box-shadow:0 20px 60px #0006}.card h1{margin:0;font-size:28px}.card .sub{color:var(--muted);margin:0 0 8px;font-size:14px}label{color:var(--muted);flex-direction:column;gap:6px;font-size:13px;display:flex}input,select{background:var(--panel2);border:1px solid var(--line);color:var(--text);border-radius:8px;outline:none;padding:10px 12px;font-size:14px}input:focus,select:focus{border-color:var(--accent)}button{background:var(--accent2);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:11px 16px;font-size:14px;font-weight:600}button:hover{background:var(--accent)}button:disabled{opacity:.6;cursor:default}button.ghost{border:1px solid var(--line);color:var(--muted);background:0 0}.error{color:var(--danger);font-size:13px}.room{flex-direction:column;height:100vh;display:flex}.room-head{border-bottom:1px solid var(--line);background:var(--panel);justify-content:space-between;align-items:center;padding:12px 18px;display:flex}.badge{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);border:1px solid var(--line);border-radius:999px;margin-left:10px;padding:2px 8px;font-size:11px}.room-body{flex:1;min-height:0;display:flex}.members{border-right:1px solid var(--line);background:var(--panel);width:220px;padding:16px;overflow-y:auto}.members h3{color:var(--muted);margin:0 0 12px;font-size:13px}.members ul{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.members li{align-items:center;gap:6px;font-size:14px;display:flex}.dot{background:#45d483;border-radius:50%;width:8px;height:8px;display:inline-block}.owner{text-transform:uppercase;color:var(--accent);margin-left:auto;font-size:10px}.chat{flex-direction:column;flex:1;min-width:0;display:flex}.messages{flex-direction:column;flex:1;gap:8px;padding:18px;display:flex;overflow-y:auto}.msg{background:var(--panel2);border-radius:12px;flex-direction:column;align-self:flex-start;max-width:70%;padding:8px 12px;display:flex}.msg.mine{background:var(--accent2);align-self:flex-end}.msg .who{color:var(--muted);margin-bottom:2px;font-size:11px}.msg .text{white-space:pre-wrap;word-break:break-word}.composer{border-top:1px solid var(--line);background:var(--panel);gap:10px;padding:14px;display:flex}.composer input{flex:1}