.usa-footer-primary-section {

@if variable-exists(primary-footer-bg) {
  background-color: $primary-footer-bg;
}

.usa-footer-primary-link {
  @if variable-exists(primary-footer-link) {
    color: $primary-footer-link;
  }
}

}

.usa-footer-secondary_section {

@if variable-exists(footer-bg) {
  background-color: $footer-bg;
}
@if variable-exists(footer-text) {
  color: $footer-text;
}

a {
  @if variable-exists(footer-link) {
    color: $footer-link;
  }
}

}