Enigma parallax menu visibility

Hi,

Please refer to site
https://www.presentardoc.com/pdocwp_en/

How can I improve visibility and readability of the header and the menus?
The white bar containing them is partially overlapped by the slider.
This is a nice effect I’d like to keep, but it would be much neater if the header pics and icons, and the menus as well, were on top of the sliding images with 100% opacity.
It would be much more readable.

Is it possible?

Thanks a lot!