Feature 12: Regular dinners and onboarding (#94)

Co-authored-by: dev_agent <dev_agent@cubecraftlabs.com>

web/src/onboarding/OnboardingStep.tsx

@@ -0,0 +1,35 @@
+import type { ReactNode } from 'react'
+import styles from './Onboarding.module.css'
+
+export const ONBOARDING_STEPS = 3
+
+export type OnboardingStepProps = {
+  // 1-based; the progress pills fill up to it.
+  step: number
+  title: string
+  children: ReactNode
+  // The step's primary action, fixed to the bottom of the screen.
+  action?: ReactNode
+}
+
+// OnboardingStep is the frame every onboarding step shares: progress pills,
+// the "Step N of 3" kicker and the Bagel title.
+export function OnboardingStep({ step, title, children, action }: OnboardingStepProps) {
+  return (
+    <main className={styles.screen}>
+      <div className={styles.column}>
+        <div className={styles.progress} aria-hidden="true">
+          {Array.from({ length: ONBOARDING_STEPS }, (_, i) => (
+            <span key={i} className={[styles.pill, i < step && styles.filled].filter(Boolean).join(' ')} />
+          ))}
+        </div>
+        <p className={styles.kicker}>
+          Step {step} of {ONBOARDING_STEPS}
+        </p>
+        <h1 className={styles.title}>{title}</h1>
+        {children}
+      </div>
+      {action && <div className={styles.footer}>{action}</div>}
+    </main>
+  )
+}