:root{--bg:#0d1117;--bg-elev:#161b22;--bg-elev-2:#1c2330;--border:#272e3a;--text:#e6edf3;--text-dim:#9aa5b1;--text-faint:#6b7684;--accent:#3b82f6;--accent-dim:#1e3a5f;--green:#2ea043;--amber:#d29922;--red:#f85149;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}.app{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:var(--bg-elev);border-right:1px solid var(--border);padding:20px 14px;position:-webkit-sticky;position:sticky;top:0;height:100vh}.brand{font-weight:700;font-size:15px;padding:6px 10px 18px;letter-spacing:.2px}.brand span{color:var(--accent)}.nav a{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:8px;color:var(--text-dim);font-weight:500;margin-bottom:2px}.nav 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