.btn-flat {
    background: $button-color;

    &:hover {
        background: darken($button-color, 5%);
    }

    &:active {
        background: lighten($button-color, 5%);
    }
}

.btn {
    @include Elevation(1);
    @extend .btn-flat;
}

.fab {
    @include Elevation(8);
    background: $button-color;
}