/* Shared by the homepage and AI Mastery: glass appears after 150px. */
#siteHeader.scrolled{
 background:rgba(255,255,255,.72);
 -webkit-backdrop-filter:blur(20px) saturate(150%);
 backdrop-filter:blur(20px) saturate(150%);
 border-bottom:1px solid rgba(220,232,247,.7);
 box-shadow:0 5px 24px rgba(9,36,90,.12);
}
@supports not (backdrop-filter:blur(20px)){
 #siteHeader.scrolled{background:rgba(255,255,255,.96)}
}