.post-ad {
  clear: both;
  margin-block: 2.5rem;
  padding-block-start: 1rem;
  border-block-start: 1px dashed var(--color-primary, #dc143c);
}

.post-ad-disclaimer {
  margin-block: 0 1rem;
  color: var(--color-text-muted, #737373);
  font-size: 0.8rem;
  line-height: 1.5;
}

.post-ad-unit {
  inline-size: 100%;
  min-inline-size: 0;
  overflow: hidden;
}

.post-ad-placeholder {
  display: grid;
  min-block-size: 5.5rem;
  place-items: center;
  border: 1px dashed var(--color-primary, #dc143c);
  border-radius: var(--border-radius, 5px);
  color: var(--color-text-muted, #737373);
  font-size: 0.85rem;
}

@media (prefers-color-scheme: dark) {
  .post-ad {
    border-color: var(--color-primary-dark, #50fa7b);
  }

  .post-ad-disclaimer,
  .post-ad-placeholder {
    color: var(--color-text-muted-dark, #ddd);
  }

  .post-ad-placeholder {
    border-color: var(--color-primary-dark, #50fa7b);
  }
}