Astrid theme, change position of menu

Hello!

I am using the Astrid theme in wordpress and i would like to change the position of the menu and the site branding.

Normally you can have the site branding or the logo on the left side, and the menu on the right, or center them. But i want it reversed.

So i want the site branding (the name of the site or the logo) on the right side and the menu on the left side. Have tried for days but cant get it to work.

The problem i also have is that i want it, if possible to be as a child so if i update wordpress it still works. Not a demand though, if it wont work!