_example.styl

.something
  width: page-width-small

_variables.styl

page-width-small = 1150px
page-width-medium = 1260px
page-width-large = 1620px
// ...

app.coffee

ClientTemplates = require 'client-templates'
nib = require 'nib'

module.exports =
  # coffeelint: disable=max_line_length
  ignores: ['_*', 'readme*', '.gitignore', '.DS_Store', 'coverage-server.js', '.git', 'bower_components', 'bower.json', 'node_modules']

  watcher_ignores: ['#*', '.git', 'bower_components', 'bower.json', 'node_modules', 'components']

  stylus:
    use: [nib()]

  extensions: [
    ClientTemplates(
      base: 'assets/templates',
      pattern: '**/*.jade',
      out: 'js/templates.js'
    )
  ]

master.styl

global-reset()

@import "_variables"
@import "_example"
// ...