central stylesheet imports all needed partials and has a variabel to be a stylesheet for modern browsers

styles.scss

// This is the central stylesheet. 

// This variable is important to distinguish between legacy browsers and the rest.
// It has importance in conjunction with the legacy-mixin.
$isoldIE: false;

@import "compass";

// import all mixins
@import "mixins/jg-mixins",
  	"mixins/legacy-mixins";

// import all seperate files
@import "partials/basics",
		"partials/before-after",
		"partials/before-after-legacy",
		"partials/box-shadow",
		"partials/menue",
		"partials/slanted",
		"partials/boxmodel",
		"partials/colors",
		"sprites";