Upfront panino problem with mobile reponsive view

Hi, thanks for a great theme
I use it on cafeuh.se and this is the site a need help on.

I one small problem with the mobile view as you can see in the attached file.
The button for closing the menu is white all together and the cross in the middle does not show before hovering.
Another problem is that in a cellphone does the site not change at all when
clicking a anchor link and the visitor does not know that they have moved
to another place on the site and need to close the menu to see that.
Thees two problems in combination makes the mobile view
of the site less intuitive and hard to navigate.

My questions are: have a done something wrong to get this problem.
and what can I do to remove this problem.