html.menu-open,html.menu-open body{overflow:hidden;overscroll-behavior:none}
body.menu-open{position:fixed;top:var(--menu-scroll-offset,0px);width:100%}
html.js body.menu-open .site-header{position:fixed;top:0;left:0;right:0;transform:none;background:var(--color-paper)}
@media (max-width:1040px){.site-nav{overscroll-behavior-y:contain}}