How to center Copyright line/Footer Nav bar in Aegaeus?

I have searched out a few CSS suggestions, but so far none have worked. I have not made any changes to the HTML/.php? file, which might be why it hasn’t worked. But i also haven’t found anything that i know for certain i can use to replace any current HTML in the .php file.

My big dream here is to
1) center the copyright line in the footer
2) center the footer navigation bar above the copyright line.
3) The multi language flags (centered now very nicely in the footer) should go either beneath the copyright line, or just below the footer nav bar (with the copyright line going at the very bottom). Either option should be fine.

Thanks for your help!