body{font-family:Arial;margin:0;background:#f4f4f4;}
header{background:#111;color:#fff;padding:20px;}
nav a{color:#fff;margin-right:15px;text-decoration:none;}
.hero{padding:100px;text-align:center;background:#1e73be;color:#fff;}
.grid{display:flex;gap:20px;padding:40px;}
.card{background:#fff;padding:20px;border-radius:8px;}
footer{text-align:center;padding:20px;background:#111;color:#fff;}