body{margin:0;background:#0a4257;color:#16323d;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;line-height:1.5}
main{max-width:720px;margin:16px auto;background:#fbfdfc;border-radius:20px;padding:18px 20px 24px}
h1{font-size:22px;margin:8px 0 4px}
h2{font-size:17px;margin:20px 0 6px}
p{margin:6px 0}
a{color:#0e5f7a;font-weight:700}
.muted{color:#5d7a84;font-size:13px}
@media (max-width:760px){main{margin:0;border-radius:0;min-height:100vh}}