html,body{margin:0;height:100%;background:#050505;color:#fff;font-family:Arial}#bg{position:fixed;inset:0;z-index:-1}nav{display:flex;justify-content:space-between;padding:20px 40px;background:rgba(0,0,0,.3);backdrop-filter:blur(8px)}ul{display:flex;gap:20px;list-style:none}a{color:#fff;text-decoration:none}.hero{height:90vh;display:grid;place-items:center;text-align:center}h1{font-size:4rem}