$title-color: $text-strong !default;
$title-family: false !default;
$title-size: $size-3 !default;
$title-weight: $weight-semibold !default;
$title-line-height: 1.125 !default;
$title-strong-color: inherit !default;
$title-strong-weight: inherit !default;
$title-sub-size: 0.75em !default;
$title-sup-size: 0.75em !default;
$subtitle-color: $text !default;
$subtitle-family: false !default;
$subtitle-size: $size-5 !default;
$subtitle-weight: $weight-normal !default;
$subtitle-line-height: 1.25 !default;
$subtitle-strong-color: $text-strong !default;
$subtitle-strong-weight: $weight-semibold !default;
$subtitle-negative-margin: -1.25rem !default;