discourse-ai/assets/stylesheets/modules/ai-helper/common/ai-helper.scss

.composer-ai-helper-modal {
  .combobox,
  .text-preview,
  .ai-helper-waiting-selection {
    margin: 10px 0 10px 0;
  }

  .text-preview {
    ins {
      background-color: var(--success-low);
      text-decoration: underline;
    }
    del {
      background-color: var(--danger-low);
      text-decoration: line-through;
    }

    .preview-area {
      height: 200px;
    }
  }

  .selection-hint {
    font-size: var(--font-down-2);
    margin-bottom: 20px;
  }
}

.topic-above-suggested-outlet.related-topics {
  margin: 4.5em 0 1em;
}