:root{--ink:#14181f;--ink-soft:#4a5462;--ink-faint:#6b7684;--line:#e2e6ec;--bg:#fff;--bg-soft:#f7f9fb;--brand:#1b6ef3;--brand-dark:#0f52c0;--pass:#0f8a4a;--warn:#b45309;--fail:#c02626;--warn-bg:#fef6e7;--pass-bg:#eefaf3;--fail-bg:#fdecec;--radius:12px;--shadow:0 1px 2px #14181f0f, 0 8px 24px #14181f0f;--wrap:720px;--wrap-wide:1040px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{color:var(--ink);background:var(--bg);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:17px;line-height:1.6}h1,h2,h3,h4{margin:0 0 .5em;font-weight:650;line-height:1.25}h1{letter-spacing:-.02em;font-size:clamp(1.75rem,1.2rem + 2vw,2.4rem)}h2{margin-top:2em;font-size:clamp(1.3rem,1.1rem + 1vw,1.6rem)}h3{font-size:1.15rem}p{margin:0 0 1em}a{color:var(--brand);text-underline-offset:2px;text-decoration-thickness:1px}a:hover{color:var(--brand-dark)}img{max-width:100%;height:auto}small,.muted{color:var(--ink-faint);font-size:.9rem}.wrap{max-width:var(--wrap);margin:0 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