:root{--bg:#0f1216;--panel:#161b22;--line:#263040;--fg:#e6edf3;--mut:#8b98a9;--acc:#4f8ef7;--ok:#3fb950;--warn:#d29922;--err:#f85149}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:14px/1.45 system-ui,-apple-system,"Segoe UI",sans-serif}
.wrap{max-width:720px;margin:0 auto;padding:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:14px}
h1{font-size:19px;margin:0 0 6px}
h2{font-size:15px;margin:0 0 10px;color:var(--mut);font-weight:600}
.mut{color:var(--mut);font-size:12.5px}
.mt10{margin-top:10px}
.mt16{margin-top:16px}
.fs16{font-size:16px}
input[type=text]{width:100%;background:#0d1117;border:1px solid var(--line);border-radius:8px;color:var(--fg);padding:10px 12px;font-size:15px;margin:8px 0 12px}
button{background:var(--acc);color:#fff;border:0;border-radius:8px;padding:10px 18px;font-size:15px;font-weight:600;cursor:pointer}
button.ghost,a.ghost{background:transparent;border:1px solid var(--line);color:var(--mut);font-weight:400;padding:8px 14px;font-size:13px}
a.ghost{display:inline-block;text-decoration:none;border-radius:8px;cursor:pointer}
button.danger{background:transparent;border:1px solid var(--err);color:var(--err)}
button:disabled{opacity:.5;cursor:not-allowed}
.status{padding:10px 14px;border-radius:8px;margin:10px 0;font-size:13px}
.status.ok{background:#0d2818;color:var(--ok)} .status.warn{background:#2d2308;color:var(--warn)} .status.err{background:#3d1215;color:var(--err)}
#msgs{max-height:46vh;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding:6px 0}
.msg{background:#0d1117;border:1px solid var(--line);border-radius:10px;padding:8px 12px}
.msg .who{color:var(--mut);font-size:12px;margin-bottom:2px}
.msg .file{margin-top:6px}
.composer{display:flex;gap:8px;margin-top:12px}
.composer input[type=text]{flex:1;margin:0}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.row.spread{justify-content:space-between}
#code{font:600 24px/1.2 ui-monospace,Consolas,monospace;letter-spacing:.15em;color:var(--acc);padding:10px 0}
.hidden{display:none}
@media (max-width:420px){.wrap{padding:10px}.card{padding:14px}h1{font-size:17px}}
.threads{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0 2px}
.threads button{background:transparent;border:1px solid var(--line);color:var(--mut);border-radius:999px;padding:5px 12px;font-size:12px;font-weight:400}
.threads button.on{border-color:var(--acc);color:var(--acc)}
#thread-note{font-size:12px}