Describe the bug

The contact form on the coming soon page is showing a mix of post-submit messaging, "Your message has been sent", and field-level warnings (that are empty).

I wonder if some expected CSS is not being loaded due to the way the shortcode/block is embedded.

To reproduce

Steps to reproduce the behavior:

1. Go to https://us.wordcamp.org/2026/
2. View the contact form
3. See the "Your message has been sent"
4. See warning under each field

Expected behavior

The form should not show errors/messages until after submission

WordCamp

Affects all "coming soon" sites - found on WCUS '26 and reproduced on https://testing.wordcamp.org/2022/.