.session-sidebar-toggle{display:none;border:1px solid var(--control-border);color:var(--muted)}
@media(min-width:761px){
 .session-sidebar-toggle{display:inline-grid}
 body.session-sidebar-collapsed{grid-template-columns:minmax(0,1fr)}
 body.session-sidebar-collapsed>.sidebar{display:none}
}