:root { --brand:#30B15C; --ink:#102A1B; --bg:#F4FBF6; --card:#FFFFFF; --muted:#44735A; }
@media (prefers-color-scheme: dark) {
  :root { --brand:#3DC96E; --ink:#EAF7EF; --bg:#0C1710; --card:#16241B; --muted:#9CC5AC; }
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif; background:var(--bg); color:var(--ink); line-height:1.65; }
.wrap { max-width:720px; margin:0 auto; padding:48px 24px 80px; }
header { display:flex; align-items:center; gap:14px; margin-bottom:8px; }
header img { width:56px; height:56px; }
header a { color:inherit; text-decoration:none; }
h1 { font-size:1.9rem; letter-spacing:-.02em; }
h2 { margin:2rem 0 .6rem; font-size:1.25rem; }
p, li { color:var(--muted); }
strong { color:var(--ink); }
a { color:var(--brand); }
ul { padding-left:1.2rem; }
.tagline { font-size:1.15rem; margin:.5rem 0 1.5rem; }
.card { background:var(--card); border-radius:16px; padding:24px 28px; margin:18px 0; box-shadow:0 2px 12px rgba(0,0,0,.06); }
.btn { display:inline-block; background:var(--brand); color:#fff; padding:12px 22px; border-radius:12px; text-decoration:none; font-weight:600; margin-top:8px; }
nav { margin:20px 0 6px; display:flex; gap:18px; }
footer { margin-top:48px; font-size:.85rem; color:var(--muted); }
.date { font-size:.9rem; }