body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#020617;color:#e2e8f0;line-height:1.7}
header{position:sticky;top:0;background:rgba(2,6,23,0.8);backdrop-filter:blur(10px);padding:16px 40px}
nav a{margin-right:18px;color:#cbd5f5;text-decoration:none;font-size:14px}
.section{max-width:1100px;margin:auto;padding:80px 20px}
.footer{background:#020617;border-top:1px solid rgba(255,255,255,0.08);padding:60px 20px}