diff --git a/docs/memory/session-log.md b/docs/memory/session-log.md
index ab21098..8ce649b 100644
--- a/docs/memory/session-log.md
+++ b/docs/memory/session-log.md
@@ -26,6 +26,46 @@ Each entry follows this structure:
 
 ## Sessions
 
+### Session 2026-03-31d — Phase 4 adapt fixes + ProvidersStep filter panel
+
+**Agent(s):** Claude Opus 4.6 (1M context)
+
+**Work completed:**
+- **Phase 4 /adapt reviews:** Ran responsive adaptation audits on Navigation, Footer, ProviderCard, VenueCard. Fixed P0/P1 touch target issues in Navigation (hamburger + drawer items minHeight 44px) and Footer (all links minHeight 44px, tagline responsive maxWidth). ProviderCard/VenueCard skipped — meta rows aren't interactive, card itself is the touch target.
+- **ProvidersStep structured filters:** Replaced generic `ProviderFilter[]` chip array with `ProviderFilterValues` interface containing 5 filter controls inside FilterPanel/DialogShell:
+  - **Location:** Autocomplete `multiple` + `freeSolo` with chip-in-input pattern (real estate site UX — chip sits inside the search field with X to clear)
+  - **Service tradition:** Autocomplete with type-to-search, 21 options ('None' first, then alphabetical traditions)
+  - **Funeral type:** Chip multi-select with wrapping layout (6 types from spec)
+  - **Verified providers / Online arrangements:** Switch toggles
+  - **Price range:** Dual-knob slider + compact editable inputs (matching CoffinsStep)
+- **FilterPanel molecule updates:** "Done" → "Apply", "Clear all" moved to footer as "Reset filters" text button
+- **DialogShell padding:** px 3 → 5 (12px → 20px) for breathing room
+- **Filter panel UX iterations (3 rounds):**
+  - Section headings: `labelLg` + `fontWeight: 600` for visual hierarchy
+  - Price inputs: compact `fontSize: 0.875rem` + tighter padding
+  - Funeral type chips: wrap layout (not horizontal scroll) — stays within bounds
+  - Price slider: `px: 2.5` accommodates MUI thumb radius, no overflow
+  - Active filter count includes location search; reset clears search too
+
+**Decisions made:**
+- "Service tradition" as the label for religion/faith filter — neutral, user-centric, covers religious and non-religious
+- 'None' as first tradition option
+- Location uses Autocomplete chip-in-input pattern (Domain/realestate.com.au style)
+- Funeral type chips wrap (stack) rather than horizontal scroll — clearer at dialog width
+- DialogShell px: 5 is a global change — all dialogs get more breathing room
+- FilterPanel footer: "Reset filters" + "Apply" replaces header "Clear all" + footer "Done"
+
+**Open questions:**
+- None currently
+
+**Next steps:**
+- Continue user feedback on remaining pages
+- Phase 4 remaining: `/typeset` sample, `/preflight` full codebase
+- Update component-registry.md with filter panel changes
+- Add progress bar + cart stories to more page stories
+
+---
+
 ### Session 2026-03-31c — PaymentStep/ConfirmationStep review + progress bar + CartButton
 
 **Agent(s):** Claude Opus 4.6 (1M context)
diff --git a/docs/reference/retroactive-review-plan.md b/docs/reference/retroactive-review-plan.md
index a76c9ec..3dd5173 100644
--- a/docs/reference/retroactive-review-plan.md
+++ b/docs/reference/retroactive-review-plan.md
@@ -102,13 +102,13 @@ retained as alternatives.
 ## Phase 4: Cross-cutting concerns
 
 After individual components are clean:
-1. **Form error colour normalisation (D034):** Override MuiFormHelperText, MuiOutlinedInput, and ToggleButtonGroup error styles in `src/theme/index.ts` to use copper instead of red. Keep `palette.error.main` red for non-form uses. This unifies atom-level error styling with the page-level copper already applied in the wizard grooming pass.
-2. Run `/adapt` on all organisms + ProviderCard/VenueCard (responsive check)
+1. ~~**Form error colour normalisation (D034):**~~ Done (2026-03-28). Copper error styling in MuiOutlinedInput, MuiFormHelperText, MuiFormLabel, ToggleButtonGroup.
+2. ~~Run `/adapt` on all organisms + ProviderCard/VenueCard (responsive check)~~ Done (2026-03-31d). Navigation + Footer touch targets fixed (P0/P1). ProviderCard/VenueCard: no action needed (card is the touch target).
 3. Run `/typeset` across a representative sample of each tier
 4. Run `/preflight` to verify the full codebase
 5. Commit all fixes
 
-**Estimated effort:** 0.5 session.
+**Estimated effort:** 0.5 session (remaining: typeset + preflight only).
 
 ---