DoCSSa - Sass based CSS architecture and methodology
See it live at mlarcher.github.io/docssa
Note: even though DoCSSa's principles can be used with any version of Sass, some parts of the provided implementation rely on the 3.3 version (i.e. the crossmedia placeholders feature). DoCSSa is all about guidelines though, so feel free to adapt it as needed.
Matthieu Larcher
Fabien Zibi