:root{--bg: #f5f6f8;--surface: #ffffff;--surface-2: #f0f1f4;--border: #e2e4e9;--border-strong: #c9ccd4;--text: #1a1d23;--text-2: #5a6172;--text-3: #8b90a0;--accent: #2f6fed;--accent-hover: #245cd1;--accent-soft: #e8effd;--ok: #1d9a5b;--ok-soft: #e3f5ec;--warn: #b57c00;--warn-soft: #fdf3d9;--err: #d13438;--err-soft: #fdeaea;--muted-soft: #eef0f3;--radius: 10px;--sidebar-w: 232px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;color:var(--text);background:var(--bg)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);flex-shrink:0;background:#171a21;color:#d5d9e2;display:flex;flex-direction:column;padding:20px 12px;position:sticky;top:0;height:100vh}.sidebar-brand{font-size:15px;font-weight:600;color:#fff;padding:0 12px 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