Mobile version elemental theme Concrete5 v 5.7

I am making a website with concrete 5.7. and to edit some things i have copied the Elemental theme and created my theme. But there are two things i don't know how to edit:

1)Is there a way to define how the elements are going to be disposed in mobile version or at least at which size the autonav is going to be changed by the menu button?Also in small screens the logo becomes really small and all the elements appear disordered.(attached file shows those problems)

2) When i change the colors of my website,(settings->design->customize) where does this changes store, because for me it would be easier to use a text editor rather than doing it with the tool. I don't want to create a new color preset, only to know where these changes are stored. Thanks for everything.! Photo: http://ift.tt/1yfKE88 The first one is the original and the other is the mobile version.