Create your account
Three short steps. Each step is checked before the next one opens, and nothing you have typed is lost if a check fails. Every error is written out in words, not signalled by colour.
Your details
Step 1 of 3. Every field is checked when you continue.
Screen reader and keyboard only? The whole flow is reachable with Tab, and the step you are on is announced when it changes. Field problems are announced immediately and focus moves to the first field that needs attention. Summary of steps: 3 details fields, then your account, then your preferences.