body{margin:0;font-family:Arial,sans-serif;color:#222;background:#f7f9fc}
header{background:#0f172a;color:white;padding:18px 5%;display:flex;justify-content:space-between;align-items:center}
nav a{color:white;text-decoration:none;margin:0 12px;font-weight:bold}
.hero{padding:100px 10%;background:linear-gradient(135deg,#0f172a,#2563eb);color:white;text-align:center}
.btn{background:#f59e0b;color:white;padding:12px 20px;text-decoration:none;border-radius:6px}
.container{padding:60px 10%}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:white;padding:24px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.1)}
footer{background:#0f172a;color:white;text-align:center;padding:25px;margin-top:40px}
h1,h2{margin-top:0}