Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
Base styles are CSS styles for HTML elements.
No, you cannot use SCSS variables in your codebase inside the Acquia Cohesion interface.
Yes, you can use Drupal fields in certain parts of Acquia Cohesion.
It depends on the use case. For fields and their field formatters use a 'Field' element, for data without field formatters, use a token.
To use an SCSS variable, enter your chosen variable into the appropriate CSS property.
Google maps may not be showing if you have not set a Google maps API key.