How to disable click on nav overlay?

Yah, I’m having a bear of a time.
Added the CSS to the head section of the page. Didn’t work.
Tried messing with Navigation Open/Close settings in the interactions. Still no joy.

I explain here in this loom video.

My share link. live preview

Any help would be greatly appreciated!

Circling back around from when I initially saw this post, I could not find a solution at the time. And now I’m in the same boat. Did you ever discover a solution?

It appears that clicking outside of the nav dropdown will trigger the nav menu to close, which inadvertently breaks the interaction.