assistant-ui sign-in email

Why it works

• State the sign-in purpose immediately, then place the primary action close to a clear expiration notice.
• Include a brief reassurance for recipients who did not request access, without distracting from the single sign-in action.

How it is built

1. Brand header
2. Sign-in prompt
3. Expiration notice
4. Sign-in button
5. Security reassurance
6. Brand footer