$susy: (
        flow: ltr,
        math: fluid,
        output: float,
        gutter-position: after,
        container: 75em,
        container-position: center,
        columns: 12,
        gutters: .25,
        column-width: false,
        global-box-sizing: border-box,
        last-flow: to,
);
$margins: (
    xs: .5rem,
    s: 1rem,
    default: 2rem,
    m: 4rem,
    l: 8rem,
    xl: 16rem
);
$breakpoints: (
        s: (max-width: 640px),
        m: (max-width: 960px),
        l: (max-width: 1280px),
        s-v: (max-height: 640px),
        m-v: (max-height: 960px),
        l-v: (max-height: 1280px),
);
$z-indexes: (
        'modal': 5000,
        'toolbar': 2000,
        'fixed': 500,
        'above': 10,
        'default': 1,
        'below': -1,
);
$border-radius: (
        s: 3px,
        m: 7px,
        l: 15px,
        xl: 21px,
);