Form on Mobile

The text for ‘subscribe to our newsletter’ under the main slider is overrunning the form when viewed in mobile. Also the form fields “Your name” and “Your email address” have no right and left padding within the form.

I would like to achieve a responsive result as shown on the following website: https://cheerup.theme-sphere.com/trendy/

Please could you check and advise?

The page I need help with: [log in to see the link]