:root{--ink:#171922;--muted:#5f6370;--paper:#f7f6f2;--surface:#fff;--line:#deddd7;--dark:#171922;--abstraction:#7657d6;--action:#e8663f;--interaction:#168ca0;--introspection:#5f8f45;--shadow:0 18px 45px #1b1d2814;color:var(--ink);background:var(--paper);font-synthesis:none;text-rendering:optimizelegibility;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;line-height:1.65}a{color:inherit;text-underline-offset:.18em;text-decoration-thickness:1px}img{max-width:100%}.shell{width:min(1180px,100% - 40px);margin-inline:auto}.narrow{width:min(820px,100% - 40px)}.site-header{z-index:30;backdrop-filter:blur(14px);background:#f7f6f2eb;border-bottom:1px solid 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