Setup Zurb Foundation 6 (sass) in Laravel 5 using composer

I am starting a new Laravel project with v5.2 and I would like to use Zurb Foundation v6.2.

I've seen that Zurb Foundation can be installed through composer and since I've installed Laravel through composer, I thought it as a good idea. I did it, Foundation is in the vendor (vendor/zurb/foundation) folder.

It has also been added to the composer.json:

"require": {
    "php": ">=5.5.9",
    "laravel/framework": "5.2.*",
    "zurb/foundation": "^6.1"
},

But now, how can I use it? Where should I create my css file(s)? In the resources/assets/sass folder where Laravel already provides a scss file (app.scss)? If so, how can I link it to Zurb Foundation?

Thanks a lot for your help.