.hero{height:100vh;background:#081c2e url('../images/hero.jpg') center/cover no-repeat;position:relative;display:flex;justify-content:center;align-items:center}.overlay{position:absolute;inset:0;background:rgba(0,0,0,.55)}.content{position:relative;color:#fff;text-align:center;font-family:Arial}.btn{background:#c89b3c;padding:15px 30px;border-radius:8px;color:#081c2e;text-decoration:none;font-weight:bold}body{margin:0}