Replace monospace-terminal aesthetic with clean reader layout. System
sans-serif default, typeface picker (sans/serif/mono) with per-face
optical tuning. Warm color palettes (slate dark, bone light), crafted
link underlines, WCAG AA contrast on all text tiers. Semantic HTML
throughout: proper heading hierarchy, <time> elements, role=group,
<dl>/<table>/<article> where appropriate. Net -140 lines.
