:root{--bg:#fbfaf7;--fg:#1d1b16;--muted:#4f4b42;--accent:#0b5d56;--line:#d9d4c7;--card:#fff}
@media (prefers-color-scheme:dark){:root{--bg:#14130f;--fg:#f1eee6;--muted:#c2bdb0;--accent:#6fd3c8;--line:#3a372e;--card:#1d1b16}}
*{box-sizing:border-box}
html{font-size:100%;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:1.0625rem/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.skip{position:absolute;left:-999px}.skip:focus{left:1rem;top:1rem;background:var(--card);padding:.5rem 1rem;border:2px solid var(--accent);z-index:9}
.wrap{max-width:42rem;margin:0 auto;padding:0 1.25rem}
header.wrap{display:flex;justify-content:space-between;align-items:center;padding-top:1.5rem;padding-bottom:1rem;flex-wrap:wrap;gap:.75rem}
.brand{font-weight:700;font-size:1.25rem;color:var(--fg);text-decoration:none}
nav a{margin-left:1.25rem;color:var(--fg)}
a{color:var(--accent);text-underline-offset:.15em}
a:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:2px}
h1{font-size:clamp(2rem,6vw,2.75rem);line-height:1.15;margin:2.5rem 0 1rem}
h2{font-size:1.35rem;margin:2.25rem 0 .5rem}
.lead{font-size:1.2rem;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1.25rem 1.5rem;margin:1.5rem 0}
.muted{color:var(--muted)}
footer.wrap{margin-top:3.5rem;padding-top:1.25rem;padding-bottom:2.5rem;border-top:1px solid var(--line);font-size:.95rem;color:var(--muted)}
footer a{color:var(--muted)}