Age calculator with React + TS, Atomic desing and mobile first

Hello Mentor Frontend community

As a bonus, add:

• Dynamic animation of calculate age button when fields are valid or invalid
• Custom text field with a button that opens a pop-up window to select the values taken by the input text field
• Button to change the page theme (dark and light)

I would be grateful if you could give me some guidance regarding:

• Any other topic that helps me improve, I appreciate your comments.
• The logic where I should go using atomic design, since I have used it in some atoms, molecules and organisms.
• Any other topic that will help me to improve, I appreciate your comments.

Thank you very much.