When using Zen and Zen grids, where do I put SASS variables?
In the Zen theme structure there are several main style files: pages.scss, nodes.scss, blocks.scss, forms.scss. Depend on which part of website that you want to make styles. You have to choose the correct files for changing. In order to use the sample code in the Zen Grids . You can go to pages.scss and make changes here . Make sure that your website will generate the same HTML markup structure like the sample by creating new pages.tpl.php.