Nuapp - Emailed login
  Start
    Type CPF -> CPF login
    Type CNPJ -> CNPJ login
    CPF login
      Password -> Personal shell
    CNPJ login
      Password -> Business shell
  Personal shell
    Settings A
      Login to business account -> Business login emailed
      Business account -> Business shell
    Business login emailed
      Check email -> Business email
  Business shell
    Settings B
      Login to personal account -> Personal login emailed
      Personal account -> Personal shell
    Personal login emailed
      Check email -> Personal email
  Personal email
    Login link -> Personal shell
  Business email
    Login link -> Business shell