body{margin:0;font-family:Arial}header{background:#0B1E33;padding:18px}header a{color:#fff;margin:0 10px;text-decoration:none}.hero{background:#0B1E33;color:#fff;padding:100px 30px}section{padding:40px}.btn{background:#20C9B7;padding:12px 18px;color:#000;text-decoration:none}footer{background:#0B1E33;color:#fff;padding:20px;text-align:center}