body{background:#0e1117;color:#fff;font-family:Arial}
.topbar{display:flex;justify-content:space-between;padding:15px;background:#161b22}
a{color:#00b4ff;margin:0 10px}
.box{width:350px;margin:50px auto;padding:30px;background:#161b22;border-radius:8px}
input,select,button{width:100%;padding:10px;margin:10px 0}
button{background:#00b4ff;font-weight:bold}
.footer{text-align:center;padding:20px;color:#777}
.landing{text-align:center;margin-top:80px}
.btn{display:inline-block;padding:12px 20px;background:#00b4ff;color:#000;border-radius:6px}