Step form js/css

Write a form that today is in 3 steps, with 3 different pages, for a form of 1 page only, with steps in stages without loading a new url.

Page 1: https://minhabufunfa.clickgratis.com.br/quiz-form/cartao-ig/
Page 2: https://minhabufunfa.clickgratis.com.br/quiz-form/cartao-ig/2/
Page 3: form - it already has a modal when clicking on page 2