:root{--bg:#e9ebef;--panel:#fff;--line:#d9dce3;--text:#1c2230;--muted:#6b7385;--accent:#2563eb;--accent-soft:#2563eb1a;--danger:#c53030;--radius:7px;color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--bg);flex-direction:column;display:flex;overflow:hidden}svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;flex:none;width:18px;height:18px}.toolbar{background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:6px;padding:8px 12px;display:flex}.brand{letter-spacing:-.01em;margin-right:6px;font-weight:650}.group{align-items:center;gap:2px;display:flex}.sep{background:var(--line);width:1px;height:22px;margin:0 6px}.spacer{flex:1}.btn{border-radius:var(--radius);height:32px;color:inherit;font:inherit;cursor:pointer;white-space:nowrap;background:0 0;border:1px solid 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