Whole Screen Nav Bar Expansion

Hi there!

Looking to replicate something like this site: https://perell.com/ when it is minimised to the smallest browser size/phone view.

The Nav bar, when clicked, takes up the entire view, and doesn’t allow scrolling. I’m having a lot of trouble designing a good nav bar, so any help here is much appreciated :slight_smile:


Here is my site Read-Only: LINK