/* CustomZ login: vertically center the logo, sign-in panel, and footer together.
   Only applies to the public login page. Allow scrolling on short displays. */
body.login-page .login-shell{
  padding-top:max(18px,calc((100dvh - 560px) / 2));
}
@media(max-width:600px){
  body.login-page .login-shell{
    padding-top:max(16px,calc((100dvh - 530px) / 2));
  }
}
@media(max-height:550px){
  body.login-page .login-shell{padding-top:16px}
}