:root{--ink:#16201b;--muted:#5d6a63;--bg:#fbfcf9;--panel:#fff;--line:#e2e7df;--accent:#1f6f4a;--accent-ink:#fff}
:root{--accent:#2f6b3a;}
@media (prefers-color-scheme:dark){:root{--ink:#e9eee8;--muted:#a3ada6;--bg:#0f1512;--panel:#16201b;--line:#26322b;--accent:#5cc28d;--accent-ink:#0f1512}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent)}a:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:2px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:8px;background:var(--panel);padding:8px 12px;z-index:10}
header,footer{border-bottom:1px solid var(--line)}footer{border-top:1px solid var(--line);border-bottom:0;margin-top:48px}
.wrap{max-width:980px;margin:0 auto;padding:16px max(16px,env(safe-area-inset-left))}
.top{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:20px;text-decoration:none;color:var(--ink)}.logo{display:block}
nav ul{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:15px;list-style:none;margin:0;padding:0}
nav a{text-decoration:none;color:var(--muted)}nav a:hover,nav a[aria-current=page]{color:var(--accent)}nav a[aria-current=page]{font-weight:600}
main h1{font-size:clamp(28px,4vw,40px);line-height:1.15;margin:32px 0 12px;text-wrap:balance}main h2{margin-top:36px;line-height:1.25}
.lead{font-size:19px;color:var(--muted);max-width:65ch}section{max-width:70ch}small{color:var(--muted)}
.note{max-width:70ch;margin-top:32px;padding:10px 14px;border-left:3px solid var(--line);color:var(--muted);font-size:15px}
.foot{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center;justify-content:space-between}.foot ul{display:flex;flex-wrap:wrap;gap:6px 16px;list-style:none;margin:0;padding:0;font-size:14px}