$box-color ?= $text
$box-background-color ?= $white
$box-radius ?= $radius-large
$box-shadow ?= 0 2px 3px rgba($black, 0.1), 0 0 0 1px rgba($black, 0.1)
$box-padding ?= 1.25rem

$box-link-hover-shadow ?= 0 2px 3px rgba($black, 0.1), 0 0 0 1px $link
$box-link-active-shadow ?= inset 0 1px 2px rgba($black, 0.2), 0 0 0 1px $link

.box
  block()
  background-color $box-background-color
  border-radius $box-radius
  box-shadow $box-shadow
  color $box-color
  display block
  padding $box-padding

a.box
  &:hover,
  &:focus
    box-shadow $box-link-hover-shadow
  &:active
    box-shadow $box-link-active-shadow