:root { --green:#215B33; --ink:#111111; --paper:#ffffff; --muted:#555555; --line:#e3e3e3; }
@media (prefers-color-scheme: dark) { :root { --ink:#eeeeee; --paper:#121412; --muted:#aaaaaa; --line:#2a2d2a; } }
* { box-sizing:border-box; }
body { margin:0; font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; color:var(--ink); background:var(--paper); }
header { background:var(--green); color:#fff; padding:28px 16px; }
header a { color:#fff; text-decoration:none; }
.wrap { max-width:720px; margin:0 auto; padding:0 16px; }
header .wrap { display:flex; align-items:center; gap:14px; }
header img { width:48px; height:48px; border-radius:12px; }
header h1 { margin:0; font-size:1.6rem; }
main { padding:32px 0 48px; }
h2 { margin-top:2em; font-size:1.2rem; }
a { color:var(--green); }
@media (prefers-color-scheme: dark) { a { color:#7fc796; } }
.muted { color:var(--muted); font-size:.95rem; }
footer { border-top:1px solid var(--line); padding:20px 0 40px; }