$card-bg:                              ui-color(u-white) !default;
$card-border-color:                    rgba(0,0,0,.1) !default;
$card-border-width:                    1px !default;
$card-padding:                         $grid-gutter-width / 2 !default;

// Must not be transparent, as borders will be layered
$card-cells-border-color:              mix(black, $card-bg, 10%) !default;