body{margin:0;font-family:Arial;background:#0b1120;color:#fff}
.container{width:90%;max-width:1200px;margin:auto}
.header{background:#020617;padding:20px 0;position:sticky;top:0}
.hero{height:60vh;background:url('https://picsum.photos/1600/900') center/cover;display:flex;align-items:center;justify-content:center;text-align:center}
.btn{background:#3b82f6;padding:10px 20px;border-radius:6px;color:#fff;text-decoration:none}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:#111827;padding:20px;border-radius:10px}
.footer{text-align:center;padding:20px;background:#020617}