:root{--bg: #f6f7f9;--panel: #ffffff;--text: #15181d;--muted: #6b7280;--line: #e5e7eb;--accent: #2563eb;--accent-text: #ffffff;--mine: #2563eb;--theirs: #eef0f3;--ok: #16a34a;--bad: #dc2626;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #0f1115;--panel: #171a20;--text: #e8eaed;--muted: #9aa0a6;--line: #2a2e36;--theirs: #232831}}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,Segoe UI,sans-serif}button{font:inherit;border:0;border-radius:8px;padding:8px 14px;cursor:pointer;background:var(--accent);color:var(--accent-text)}button:disabled{opacity:.45;cursor:default}button.ghost{background:transparent;color:var(--text)}button.wide{margin:12px;width:calc(100% - 24px)}input,textarea{font:inherit;color:inherit;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px 10px;width:100%}h1{margin:0 0 4px;font-size:24px}h2{font-size:15px;margin:18px 0 6px}.muted{color:var(--muted)}.small{font-size:12px}.center{display:grid;place-items:center;height:100%;padding:16px;text-align:center}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;width:min(440px,100%);text-align:left}.onboard{display:grid;gap:14px}.onboard label{display:grid;gap:6px;font-weight:600}.banner{background:var(--theirs);border-radius:8px;padding:8px 10px;margin:0}.row{display:flex;gap:8px;align-items:center;margin-top:8px}.row.end{justify-content:flex-end}.modal{position:fixed;inset:0;background:#0008;display:grid;place-items:center;padding:16px}.layout{display:grid;grid-template-columns:300px 1fr;height:100%}aside{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}aside>header{display:flex;justify-content:space-between;align-items:center;padding:14px;border-bottom:1px solid var(--line);gap:8px}.relays{font-size:12px;white-space:nowrap}.relays.ok:before{content:"● ";color:var(--ok)}.relays.bad:before{content:"● ";color:var(--bad)}.convs{list-style:none;margin:0;padding:0;overflow-y:auto}.convs li{padding:12px 16px;cursor:pointer;border-bottom:1px solid var(--line)}.convs li.active,.convs li:hover{background:var(--theirs)}.convs li.empty{cursor:default;background:none}main{min-width:0;min-height:0}.conv{display:flex;flex-direction:column;height:100%}.conv>header{display:flex;align-items:baseline;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);background:var(--panel)}.back{display:none;padding:0 8px 0 0;font-size:22px;line-height:1}.msgs{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:6px}.msg{max-width:min(75%,560px);align-self:flex-start}.msg.mine{align-self:flex-end;text-align:right}.bubble{display:inline-block;text-align:left;padding:8px 12px;border-radius:14px;background:var(--theirs);white-space:pre-wrap;overflow-wrap:anywhere}.mine .bubble{background:var(--mine);color:#fff}.meta{font-size:11px;color:var(--muted);margin:2px 4px 0}.system{align-self:center;font-size:12px;color:var(--muted)}.composer{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:var(--panel)}.composer textarea{resize:none;max-height:140px}@media(max-width:700px){.layout{grid-template-columns:1fr}.layout.has-conv aside{display:none}.layout:not(.has-conv) main{display:none}.back{display:inline}}.hdr-right{display:grid;justify-items:end;gap:2px}.hdr-right button{padding:2px 0}.restore{display:grid;gap:8px;font-weight:400}.error{color:var(--bad);margin:0;font-size:13px}