Hello,

I have corrected code, now you have grid border.

As for buttons. You have custom CSS in Theme Settings > Custom CSS determining button colors to be #49382d now you want #5FBDAD . Determine please the buttons color you want and set them in Theme Settings > Styles and colors. Now you shopping buttons are #5FBDAD

I have hidden all CSS for button background with comments. As soon as you make decisions on color, you will delete or edit this code if necessary.

Best Regards