message: Updated: close button color.
diff: .Modal {
  @apply --layout-center-center;
  - color: var(--color-base-black);
  + color: var(--color-base-white);
  pointer-events: none;
  background-color: rgba(0, 0, 0, 0);
  transition-duration: 200ms;
  @apply --layout-center-center;
  @mixin hover {
  - color: var(--color-base-gray);
  + color: var(--color-base-blue);
  }
  position: sticky;
  top: 0;
  