Menu cutoff when used inside Background Video section

I used a standard WF menu component placed inside a Background Video section. When the menu is opened fully on mobile, it’s contained within the section and consequently gets cut off. I can’t seem to change the Z-Index (or at least, it makes no difference) the menu always gets cut off.

Example here: Logisticomms The issue is on mobile only.

Any ideas please?!

Here is my site Read-Only: [LINK](Webflow - Logisticomms)
(how to share your site Read-Only link)