Thanks for your questions!
1️⃣ WPML Compatibility
Currently, Bit Form does not have official WPML compatibility. It works with i18n for multilingual support, so you can still handle translations at a basic level.

👉 Here is the doc about translations: https://bit-form.com/wp-docs/translate-bit-form/

2️⃣ Styling and Inheritance
For styling, Bit Form uses a default theme style. However, if you want the form to inherit your site's styling, we recommend using the “no style” theme within Bit Form. This allows your site’s CSS to take over and apply its styling to the form.

👉 Here is the doc about style editor: https://bit-form.com/wp-docs/form-design-and-style-guide/