How can the state of a selected highlight button be preserved using a multi-step registration process?

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One possible solution is to use cookies to store the state of the highlighted button. When the user selects a highlight button, the state is saved in a cookie. Then, when the user navigates to the next step of the registration process, the cookie is retrieved and the highlight button is rendered with the previously selected state. This process can be repeated for each step of the registration process, ensuring that the selected highlight button is preserved throughout the entire process. Additionally, the cookie can have an expiration date or be deleted once the registration process is complete to avoid cluttering the user's device with unnecessary data.