:root{--ink:#10222f;--sea:#0b5d7a;--sand:#f6f1e7;--line:#d9dee2}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--ink);line-height:1.6;background:#fff}
header,footer{padding:20px 24px}
header{border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
header a.brand{font-weight:700;font-size:1.2rem;color:var(--ink);text-decoration:none}
nav a{margin-left:18px;color:var(--sea);text-decoration:none}
main{max-width:820px;margin:0 auto;padding:40px 24px}
.hero{background:var(--sand);padding:56px 24px;text-align:center}
.hero h1{margin:0 0 12px;font-size:2.2rem}
.hero p{max-width:620px;margin:0 auto 24px}
.btn{display:inline-block;background:var(--sea);color:#fff;padding:12px 22px;border-radius:8px;text-decoration:none;font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin:24px 0}
.card{border:1px solid var(--line);border-radius:10px;padding:18px}
h2{margin-top:36px}
footer{border-top:1px solid var(--line);font-size:.9rem;text-align:center;color:#51606b}
footer a{color:var(--sea);margin:0 8px}