:root{--bg:#0e1117;--bg-card:#161b22;--bg-hover:#1c2333;--border:#30363d;--text:#e6edf3;--text-muted:#8b949e;--text-dim:#555d66;--accent:#58a6ff;--accent-green:#3fb950;--accent-red:#f85149;--accent-yellow:#d29922}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;font-size:14px;line-height:1.5}.app{min-height:100vh;display:flex}.sidebar{background:var(--bg-card);border-right:1px solid var(--border);flex-shrink:0;width:240px;padding:24px 16px}.sidebar h2{margin-bottom:4px;font-size:16px}.sidebar .caption{color:var(--text-muted);margin-bottom:16px;font-size:12px}.sidebar .divider{border-top:1px solid var(--border);margin:12px 0}.sidebar .stat{color:var(--text-muted);margin-bottom:4px;font-size:12px}.sidebar .stat span{color:var(--text);font-weight:600}.main{flex:1;padding:24px 32px;transition:max-width .3s ease-out,padding-right .3s 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