/* Marina — preserve the approved mask in the actual selected hosted Inbox.
   Existing company/remote active rules erase background on generic rail icons;
   mask icons need their currentColor fill. Local inline SVG is not targeted.
   Load after company-appearance/office-presentation/workspace-inbox-icon. */
.office-console-shell.remote-shell .rail .nav a.rail-inbox>.rail-inbox-icon,
.office-console-shell.remote-shell .rail .nav a.rail-inbox:is([aria-current="page"],:hover,:focus-visible)>.rail-inbox-icon {
 color:inherit;background-color:currentColor;border-radius:0;
}