Многошаговый мастер
Per-step validation, progress indicator, combined final submit.
Формы
Паттерны валидации форм с Superforms v2 + Valibot v1.
Шаг 1/3
Wizard Pattern
Each step validates only its own fields via validateForm(). Hidden inputs preserve values from other steps for the final submit. The browser back button navigates away (known limitation of client-side step tracking).