Interactive Credit Card with Form Validation (HTML, Sass, Javascipt)

Hello guys 👋, here is my solution for the Interactive card details form Challenge.

I replaced some of the validations and views of the challenge examples given, because I think there are some things that are better replaced, so that some functions can run more effectively 😄.

Let me know if you like it or have better ideas for me to write much better & efficient code . Please help me to improve my skills by giving your feedback. Thanks 🙏🙌