body{font-family:Arial,sans-serif;margin:0;background:#0f1923;color:#fff}
.hero{background:url('images/hero.png') center/cover;height:80vh;display:flex;align-items:center;justify-content:center;text-align:center}
.btn{background:#00aaff;padding:15px 25px;color:#fff;text-decoration:none;border-radius:5px;margin:10px;display:inline-block}
.section{padding:40px;text-align:center}
img{max-width:100%}