:root{--sat:env(safe-area-inset-top,0px);--sab:env(safe-area-inset-bottom,0px);--sal:env(safe-area-inset-left,0px);--sar:env(safe-area-inset-right,0px);--t-sans:ui-sans-serif,system-ui,-apple-system,"SF Pro Text","Segoe UI","Helvetica Neue",Helvetica,Arial,sans-serif;--t-serif:"Newsreader","Iowan Old Style","Apple Garamond",Garamond,"Times New Roman",serif;--t-mono:ui-monospace,"SF Mono","Menlo","Cascadia Mono",monospace;--bg:oklch(0.985 0.008 80);--surface:oklch(0.995 0.005 80);--surface-2:oklch(0.972 0.010 80);--ink:oklch(0.21 0.013 55);--ink-2:oklch(0.42 0.011 55);--ink-3:oklch(0.58 0.009 55);--ink-4:oklch(0.74 0.007 55);--line:oklch(0.92 0.008 80);--line-2:oklch(0.87 0.010 80);--accent:oklch(0.60 0.13 72);--accent-2:oklch(0.94 0.05 72);--accent-ink:oklch(0.38 0.10 72);--ok:oklch(0.55 0.09 165);--warn:oklch(0.62 0.13 60);--danger:oklch(0.55 0.17 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var(--space-3);border-radius:var(--r-sm);background:transparent;border:0;color:var(--ink-2);font-size:var(--text-label);width:100%;text-align:left;cursor:pointer;letter-spacing:-.005em}.nav-item-flat.active,.nav-item-flat:hover{background:var(--bg);color:var(--ink)}.nav-item-flat .ico{color:var(--ink-3)}.nav-item-flat.active .ico{color:var(--accent)}.nav-foot{padding:18px 10px 4px;display:flex;align-items:center;gap:10px;margin-top:8px}.avatar{width:26px;height:26px;border-radius:50%;background:var(--accent);color:white;display:grid;place-items:center;font-size:11px;font-weight:500;flex:none}.nav-foot .meta{line-height:1.25}.nav-foot .meta b{font-weight:500;font-size:var(--text-label)}.nav-foot .meta div{color:var(--ink-3);font-size:var(--text-caption)}.topbar{display:flex;align-items:center;gap:14px;padding:20px 40px 14px;background:var(--bg);position:sticky;top:0;z-index:5}.topbar 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