:root{--bg:#f4f6f8;--panel:#fff;--line:#e2e6ea;--text:#1b2430;--muted:#6b7785;--brand:#128c7e;--brand-dark:#0b6b5f;--in:#fff;--out:#d9fdd3;--danger:#c0392b}@media (prefers-color-scheme:dark){:root{--bg:#0f1418;--panel:#182026;--line:#2a343c;--text:#e8edf1;--muted:#8a97a3;--in:#202c33;--out:#005c4b}}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);margin:0;font:14px/1.4 system-ui,-apple-system,Segoe UI,sans-serif}button,input,select{font:inherit;color:inherit}button{background:var(--brand);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:8px 14px}button:hover:not(:disabled){background:var(--brand-dark)}button:disabled{opacity:.5;cursor:default}button.link{color:var(--brand);background:0 0;padding:4px}input,select{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:9px 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