HTML, CSS e JS

Hello! Great work~ It has good responsiveness.

I have a few suggestions (I think?)

1. The logo image should be wrapped by an a tag that links to the homepage.

2. I am not sure about putting the heading till the form elements in the header but this is just my preference, I guess.

3. Putting the section in a main tag should remove some of the accessibility issues in the report.

4. Have an aria-label attribute in your a tags for footer. https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA8.html#:~:text=The%20aria%2Dlabel%20attribute%20provides,used%20instead%20of%20aria%2Dlabel%20.

5. Instead of setting the styles directly in JS, add/remove class instead. E.g. add .success class to show success-related styles.

6. I think there should be a label or aria-label for the input element.