:root { --navy:#16243E; --lime:#A6E22E; --green:#5E8A12; --bg:#F2F4F7; }
* { box-sizing: border-box; }
body { font-family:-apple-system,system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
       margin:0; color:var(--navy); background:var(--bg); line-height:1.65; }
header { background:var(--navy); color:#fff; padding:30px 20px; }
header .wrap { max-width:760px; margin:0 auto; }
header .brand { font-weight:800; letter-spacing:.5px; }
header .brand a { color:#fff; text-decoration:none; }
header .brand .dev { color:var(--lime); }
header nav a { color:var(--lime); text-decoration:none; font-weight:700; font-size:.9em; }
main { max-width:760px; margin:0 auto; padding:32px 20px 56px; }
h1 { margin:.1em 0 .3em; font-size:2em; }
h2 { margin-top:1.6em; color:var(--navy); }
a { color:var(--green); }
.tagline { color:#5a6b86; margin-top:0; }
.card { background:#fff; border-radius:16px; padding:22px 26px; margin:18px 0;
        box-shadow:0 1px 3px rgba(0,0,0,.06); text-decoration:none; color:inherit; display:block; }
a.card:hover { box-shadow:0 4px 14px rgba(0,0,0,.10); }
.card h3 { margin:0 0 4px; }
.muted { color:#6a7890; font-size:.9em; }
.btn { display:inline-block; background:var(--lime); color:var(--navy); font-weight:800;
        padding:11px 20px; border-radius:12px; text-decoration:none; margin-top:8px; }
.links a { margin-right:18px; font-weight:700; }
footer { text-align:center; color:#8794a8; font-size:.85em; padding:28px 20px 40px; }
ul { padding-left:1.2em; }
li { margin:.2em 0; }
.updated { color:#6a7890; font-size:.9em; }