---
phase: 09-md3-components
plan: "02"
subsystem: ui
tags: [react, tailwind, md3, wizard, step-indicator, accessibility]

# Dependency graph
requires:
  - phase: 08-theme-foundation
    provides: MD3 semantic token classes (bg-primary, text-on-primary, border-outline, etc.)
provides:
  - MD3 visual step indicator with numbered circles, checkmark completed states, connector lines
affects: [wizard layout, dark-mode rendering, any plan touching StepIndicator or wizard navigation]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - "MD3 stepper pattern: circles + flex-1 connector lines inside ol/li structure"
    - "Test-compatible button pattern: label text inside button so textContent includes step name"
    - "flex flex-col button wrapping both icon and label keeps button.textContent matchable by tests"

key-files:
  created: []
  modified:
    - src/components/wizard/StepIndicator.tsx

key-decisions:
  - "Label text inside button element (not adjacent) so textContent includes step name for test selectors"
  - "Connector div uses mb-4 to visually align with circle midline"
  - "Pre-existing TextFieldMD3.test.tsx failure is out-of-scope (component not yet built — belongs to a future plan)"

patterns-established:
  - "MD3 step indicator: ol > li with circle span + connector div between steps"
  - "Completed step: button with flex-col containing icon span + label span"
  - "Active step: non-interactive div with border-primary ring"
  - "Future step: non-interactive div with border-outline muted text"

requirements-completed: [COMP-04]

# Metrics
duration: 6min
completed: 2026-04-01
---

# Phase 9 Plan 02: StepIndicator MD3 Rebuild Summary

**Text breadcrumbs replaced with MD3 visual stepper: numbered circles, checkmark completed steps, connector lines, semantic color tokens — all 5 WIZD-03 tests pass without modification**

## Performance

- **Duration:** ~6 min
- **Started:** 2026-04-01T07:18:12Z
- **Completed:** 2026-04-01T07:24:00Z
- **Tasks:** 1
- **Files modified:** 1

## Accomplishments

- StepIndicator rebuilt from text breadcrumbs to MD3 circles with `w-8 h-8 rounded-full` sizing
- Completed steps render as clickable `<button>` with checkmark circle + label; `textContent` includes step name so test selectors work unchanged
- Active step uses `border-primary bg-primary/10 text-primary font-bold` ring styling
- Future steps muted with `border-outline text-on-surface-container/40`
- Connector lines between steps: `bg-primary` for completed segments, `bg-outline` for future
- All inline `style={{}}` props removed; no hardcoded color values (`#999`, etc.)
- `handleStepClick` logic unchanged: dispatches `SET_REMOTE_PARAMS({})` before `SET_STEP(0)` when navigating back to step 0

## Task Commits

Each task was committed atomically:

1. **Task 1: Rebuild StepIndicator with MD3 circles and connectors** - `b704844` (feat)

**Plan metadata:** (docs commit — see below)

## Files Created/Modified

- `src/components/wizard/StepIndicator.tsx` - Rebuilt MD3 visual step indicator; 55 lines

## Decisions Made

- **Label inside button:** The plan's CRITICAL note specified label text must be inside the `<button>` element so `button.textContent?.includes('Backend')` works. Used `flex-col` button layout with icon span + label span both inside the button.
- **Connector vertical alignment:** Added `mb-4` to connector `div` to visually align the `h-0.5` line with the circle midpoints given the flex-col label below.
- **Pre-existing test failure scoped out:** `TextFieldMD3.test.tsx` fails with "Cannot find module './TextFieldMD3'" — this is a test file for a component not yet built (future plan). Not caused by this change. Logged to deferred-items.

## Deviations from Plan

None — plan executed exactly as written.

## Issues Encountered

- `TextFieldMD3.test.tsx` was already failing in the full test suite before this change (missing component file). Confirmed out-of-scope — not introduced by StepIndicator rebuild.

## User Setup Required

None — no external service configuration required.

## Next Phase Readiness

- StepIndicator is fully MD3-compliant and dark-mode aware via semantic tokens
- Ready for Phase 9 Plan 03 (TextFieldMD3 component build, which will also fix the pre-existing test failure)
- 131 test selector fragility concern remains (ongoing, per STATE.md blocker) — this plan's approach of keeping label text inside button elements is the established pattern to follow

---
*Phase: 09-md3-components*
*Completed: 2026-04-01*