message: feat: use css variables
diff: cursor: pointer;
  display: inline-flex;
  font: var(--typography-button-font);
  - height: $space-lg;
  + height: var(--space-lg);
  letter-spacing: var(--typography-button-letter);
  padding-left: var(--space-md);
  padding-right: var(--space-md);
  