body{font-family:Arial,sans-serif;margin:0;color:#222}header{display:flex;align-items:center;justify-content:space-between;padding:16px 8%;background:#0f172a;color:#fff;position:sticky;top:0}.logo{height:60px;margin-right:20px}nav a{color:#fff;margin-left:16px;text-decoration:none}.hero{padding:80px 8%;background:linear-gradient(135deg,#2563eb,#06b6d4);color:#fff}.btn{background:#fff;color:#2563eb;padding:10px 18px;border-radius:6px;text-decoration:none}section{padding:50px 8%}footer{background:#0f172a;color:#fff;text-align:center;padding:20px}