Mobile Optimisation & Accordion Toggle

Hello!

Brilliant theme (so thank you!) but I’m having a few problems;

1) site is not optimised for mobile, I’ve done the obvious stuff in the back end so not sure what i’m missing
2) the accordion at the bottom of the below page is only showing up in white (no colour highlights). IIts fine on my other pages

http://www.truest-self.com/plant-based-nutrition-program/

would be very grateful if you could take a look for me as I need it to look good on mobiles before I can launch my product.

thank you very much! :)

Alex