:root{--brand-blue: #0B3BAA}html,body{margin:0;padding:0;height:100%;background:#fff;font-family:Arial,sans-serif}.header-nav{background-color:var(--brand-blue);padding:10px 20px;border-top-left-radius:8px;border-top-right-radius:8px;display:flex;justify-content:center}.header-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:20px;flex-wrap:wrap;align-items:center}.header-nav li a{color:#fff;text-decoration:none;font-weight:700}.header-nav li a:hover{text-decoration:underline}.pdf-frame{width:100%;height:100vh;border:0;background:#fff}