Sticky Navigation disappears on mobile devices/tablets

so maybe one could change the "position", when the sticky navigation should (dis-)appear to some smaller value?

Is there any way you can send me temporary admin login details so I can take a closer look?: https://generatepress.com/contact/

I sent you a message in "account issue" (didn't find any email-adress)

This did the trick:

#site-navigation {
    opacity: 0;
    height: 0;
}

Everythink works fine now! Thank you very much, really appreciate your support here :)

Glad I could help :)