Cant resize Header height (or icons) in Mobile menu

Hello,
I have a problem where my Header section in mobile devices seems much larger than on PC (just a large white blank space between the actual header content – menu/logo and the body of the site).
I cant seem to find a way to resize it to be smaller.

However – to be honest, my initial problem was quite different, I cant figure out how to resize the Hamburger menu icon on mobile and the WooCommerce Cart icon for mobile. (Thats the initial reason why I try to make my header smaller).
If someone can take a look at my site and tell me what CSS might work to do that I would be very grateful!!!

The domain is : [Redundant link removed]

• This topic was modified 4 years, 10 months ago by t-p.

The page I need help with: [log in to see the link]