[Theme: Pitch] Changing Main Menu Font Color

I am working on a site and am stuck. I have been trying to change the font color of the main menu for some time but cannot seem to find it.

This is the code:

[Large chunk of CSS moderated. all that is needed is a link to your site.]

I am wanting to make the font white with blue background as a standard and on scroll grey font with a white background.

Website is located here: http://www.creativemine.co