body{font-family:Segoe UI;} .top-bar{background:#0d6efd;color:#fff;text-align:center;padding:6px;} .hero{height:90vh;background:#0d6efd;color:#fff;position:relative;} .hero-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;} .footer{text-align:center;padding:15px;background:#111;color:#ccc;}