color change menu

Hello

I have some problem with the color.
Normal is looking now like here:
http://prntscr.com/gp0jcn
but if I change to mobile view the is change the color.
The font is now black and then white with background white.
http://prntscr.com/gp0k04
http://prntscr.com/gp0k5q
where can I change it?
And also the theme is not responsive
http://prntscr.com/gp0klp
or what I do wrong?
Thanks for your help.

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