Should we upload different zip files for each font family font weight?
It depends on the font you are using. If you have individual files for each font, you should upload zip files for each weight.
Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
We recommend using decimals e.g. 1.3 as this makes the line height relate to your font size.
Use our interactive flexbox demo below to visualise how flex can help you layout your content.
Yes, you can personalize content within Site Studio using the context module.