body{font-family:Arial;margin:0;background:#111;color:#fff}header{text-align:center;padding:40px} .logo{max-width:180px}.btn{background:#c9a227;color:#111;padding:12px 20px;text-decoration:none;border-radius:6px}section{padding:30px}img{max-width:45%;margin:10px}footer{text-align:center;padding:20px;background:#000}