:root{--bg:#fff;--blue:#1f3aff;--blue-light:#c9d2ff;--blue-tint:#eef0ff;--yellow:#e8ff47;--yellow-tint:#fbffd6;--ink:#111;--muted:#5c5a55;--line:#e4e1da;--paper:#f5f5f2;--alert:#b4321e}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);font-family:Instrument Sans,-apple-system,sans-serif;font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}.mono{font-family:IBM Plex Mono,ui-monospace,monospace}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--blue);outline-offset:2px}h1,h2,h3{letter-spacing:-.025em;line-height:1.08;font-weight:700}h1{font-size:clamp(36px,5.2vw,60px)}h2{font-size:clamp(26px,3.4vw,38px)}h3{font-size:20px}p{max-width:68ch}.wrap{max-width:1120px;margin:0 auto;padding:0 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