---
phase: 6
slug: ux-polish
status: draft
shadcn_initialized: false
preset: none
created: 2026-06-10
---

# Phase 6 — UI Design Contract

> Visual and interaction contract for Phase 6: UX Polish.
> Generated by gsd-ui-researcher. Verified by gsd-ui-checker.

---

## Design System

| Property | Value |
|----------|-------|
| Tool | none (custom CSS token layer) |
| Preset | not applicable |
| Component library | none — hand-rolled components using CSS custom properties |
| Icon library | lucide-react@1.17.0 |
| Font | system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif |

Source: `apps/pwa/src/styles/tokens.css` — fully established in Phase 2 (D-01/D-02).
No new design-system tooling introduced in this phase.

---

## Spacing Scale

Declared values from `apps/pwa/src/styles/tokens.css` — no changes in this phase:

| Token | Value | Usage |
|-------|-------|-------|
| --space-1 | 4px | Icon gaps, inline padding, dot-label gaps |
| --space-2 | 8px | Compact element spacing, badge padding |
| --space-3 | 12px | Form field internal padding |
| --space-4 | 16px | Default element spacing, card padding |
| --space-6 | 24px | Section padding, sheet internal padding |
| --space-8 | 32px | Layout gaps, modal vertical padding |
| --space-12 | 48px | Major section breaks |

Exceptions:
- Touch targets: minimum 44px height on all interactive elements (EventForm inputs, recurrence bound control, series-edit prompt buttons). 48px on primary CTAs (per existing PushPermissionPrompt pattern).
- All-day banner row: height is not constrained to spacing scale; it follows the Schedule-X all-day row height. Do not override it.

---

## Typography

From `apps/pwa/src/styles/tokens.css` — no new sizes or weights introduced in this phase:

| Role | Size | Weight | Line Height | Used in Phase 6 |
|------|------|--------|-------------|-----------------|
| Body | 15px | 400 | 1.5 | Auth splash body text, session-expired interstitial copy, form labels |
| Label | 13px | 400 | 1.4 | Recurrence bound control labels, "repeat until" date caption, series-edit prompt sub-copy |
| Heading | 18px | 600 | 1.25 | Auth splash heading ("Signing you in"), series-edit prompt heading |
| Display | 24px | 600 | 1.2 | Not used in Phase 6 new surfaces |

---

## Color

From `apps/pwa/src/styles/tokens.css` — no new colors introduced in this phase:

| Role | Value | Usage |
|------|-------|-------|
| Dominant (60%) | --color-surface: #FFFFFF | Auth splash background, modal/sheet backgrounds, EventForm background |
| Secondary (30%) | --color-surface-dim: #F7F7F8 | Series-edit prompt background band, all-day visual treatment background fill |
| Accent (10%) | --color-member-0: #4A90D9 | Primary CTA buttons only: "Turn On Notifications", "Save" in event form |
| Destructive | --color-destructive: #DC2626 | Delete event, destructive actions only |

Accent reserved for:
1. Primary CTA button fill in EventForm ("Save" / "Update Series")
2. Focus ring (--color-focus-ring: #4A90D9) on interactive inputs

New usage decisions for Phase 6 surfaces:

**All-day event visual treatment (999.6):**
- All-day chips/banners in Schedule-X all-day row: use full-width pill style with the member's `--color-member-N` or `--color-shared-family` as background fill at 100% opacity.
- Timed event chips: keep existing member color fill.
- The visual distinction is achieved through shape and presentation (full-width pill vs. standard event block), not a new color. The existing `_familySync.color` per event drives the fill in both cases.

**Auth splash (999.2) + session-expired interstitial (999.3):**
- Full-screen overlay: `--color-surface` (#FFFFFF) background.
- Spinner: `--color-member-0` (#4A90D9) — reuses the existing Loader2 + spin keyframe pattern.
- Heading: `--color-text-primary` (#111318).
- Body: `--color-text-secondary` (#6B7280).

**Series-edit prompt (999.9):**
- Confirmation sheet / dialog uses same surface + border system as existing DeleteConfirmationDialog.
- No new accent color. Primary confirm action uses `--color-member-0` fill (same as Save CTA).

---

## Copywriting Contract

### Auth splash — unauthenticated cold load (999.2)

| Element | Copy |
|---------|------|
| Heading | Signing you in |
| Body | Taking you to the sign-in page… |
| Fallback (one-shot guard failed) | Sign-in required. Tap here to try again. |

Rules:
- No punctuation on the heading.
- Body uses an ellipsis (…, U+2026) not three dots.
- The "Sign-in required" fallback is the dead-end only — not the primary unauthenticated path.

### Session-expired interstitial (999.3)

| Element | Copy |
|---------|------|
| Heading | Session expired |
| Body | Signing you back in… |

Rules:
- This interstitial replaces the hanging/generic error state. It is shown for ≤2s before `window.location.href = '/api/login'` fires.
- Do not show a dismiss button — the redirect is automatic.

### EventForm — recurrence bound control (999.8)

| Element | Copy |
|---------|------|
| Bound type label | Ends |
| Option: no bound | Never |
| Option: repeat until | On date |
| Option: count | After N times |
| Date input label | End date |
| Count input label | Occurrences |
| Count input placeholder | e.g. 10 |
| Validation error: count < 1 | Must be at least 1 occurrence |
| Validation error: until < start | End date must be after the event starts |

### EventForm — series-edit confirmation (999.9)

| Element | Copy |
|---------|------|
| Sheet/dialog heading | Edit recurring series |
| Body | This will update all occurrences of this event. |
| Confirm CTA | Update series |
| Cancel | Cancel |

Rules:
- "Update series" is the primary action (accent-filled button).
- "Cancel" is a ghost/secondary button.
- No destructive color on confirm — this is an edit, not a delete.

### EventForm — primary CTAs

| Mode | CTA label |
|------|-----------|
| Create (non-recurring) | Save event |
| Create (recurring) | Save event |
| Edit (non-recurring) | Save changes |
| Edit (recurring occurrence) | Update series |

### Sync indicators (D-13)

No copy change. Existing copy is canonical:
- Spinning: "Syncing…"
- Done: "Saved"
- Failed: "Didn't save. Try again." (or conflict variant)
- Dead: "Not saved. Check your connection."
- LiveSyncIndicator reconnecting: "Reconnecting…"
- LiveSyncIndicator disconnected: "Updates paused"

### Empty states

No new empty states introduced in this phase. Existing EmptyState and ListsEmptyState copy is unchanged.

### Destructive actions

| Action | Trigger | Confirmation |
|--------|---------|--------------|
| Delete event | Trash2 icon in EventDetailPopover footer | Existing DeleteConfirmationDialog — "Delete event?" / "This can't be undone." / "Delete" (destructive-red) / "Cancel" |
| Delete recurring series | (Not in scope for Phase 6 — whole-series edit only, not delete) | N/A |

---

## Surface Contracts

### Surface 1: Auth splash screen (999.2)

**Trigger:** `meQuery.isLoading` on initial mount (before auth state is known).

**Layout:**
- Full-screen centered column: `display:flex; flex-direction:column; align-items:center; justify-content:center; height:100dvh; background:var(--color-surface)`.
- Stack: Loader2 spinner (24px, `--color-member-0`, spinning via global `@keyframes spin`) → 16px gap → Heading (18px/600) → 8px gap → Body (15px/400, `--color-text-secondary`).
- No app chrome (no BottomTabBar, no AppNav).

**States:**
1. `meQuery.isLoading` → show spinner + "Signing you in" heading + "Taking you to the sign-in page…" body.
2. `meQuery.isError` (opaqueredirect / 401), first attempt → trigger `maybeRedirectToLogin()` immediately; while the redirect is in-flight keep the spinner visible (same view).
3. `meQuery.isError`, one-shot guard already fired (`familysync.loginRedirectAttempted` set) → replace body with "Sign-in required. Tap here to try again." with a tap handler that clears the flag and re-triggers login. No spinner in this dead-end state.

**Accessibility:** `role="status"` on the spinner wrapper, `aria-label="Signing you in"`.

### Surface 2: Session-expired interstitial (999.3)

**Trigger:** Any query or mutation returns 401 / opaqueredirect after initial auth succeeds.

**Layout:** Same full-screen centered column as Surface 1, but:
- Heading: "Session expired"
- Body: "Signing you back in…"
- Spinner visible.
- Fires `maybeRedirectToLogin()` after a 1.5s delay (enough for the user to read the message, not long enough to feel broken).

**Implementation note:** Centralized in `apps/pwa/src/api/client.ts` via a typed `SessionExpiredError`. A global TanStack Query `onError` handler intercepts it and sets a Zustand flag that renders this surface above the app tree. The existing one-shot guard in `loginRedirect.ts` is re-armed (clear `familysync.loginRedirectAttempted` before re-firing).

### Surface 3: All-day visual distinction (999.6)

**Schedule-X context:** All-day events appear in the all-day row in week/day views and as full-width banners in month/agenda views. Schedule-X renders them with its own chip CSS.

**Treatment:**
- Override Schedule-X all-day chip styles to render as a full-width rounded pill (border-radius: 4px) spanning the full column width with the event's member color as solid background fill and white (`#FFFFFF`) label text.
- Timed events keep their existing chip appearance (colored left border + lighter background tint, as Schedule-X default renders them with `--sx-color-primary`).
- The visual distinction contract: **all-day = solid filled pill; timed = partial-fill chip with colored border accent**.
- Override selector: `.sx__all-day-event` — set `border-radius:4px; color:#FFFFFF; font-weight:600; font-size:var(--text-label-size)`.
- Color source: pass the event's `_familySync.color` to the Schedule-X `calendarId` color config (already done via `buildCalendarConfig`). No per-event inline style override needed if the `calendarId` color propagates.

**Accessibility:** No additional ARIA needed — Schedule-X all-day row already has date headers. The filled pill provides sufficient contrast (member colors are ≥3:1 on white text at these sizes).

### Surface 4: EventForm — end-tracking + all-day off-by-one fix (999.7)

**Behavior contract:**
- On any `startDate` or `startTime` change: recalculate `endDate`/`endTime` to preserve the current duration.
  - Timed: `newEnd = newStart + (oldEnd - oldStart)`. If `oldEnd <= oldStart` (stale state), snap to `newStart + 1h`.
  - All-day: `newEndInclusive = newStartDate + (oldEndInclusive - oldStartDate)` in days. If span = 0, keep 0 (same-day). If `oldEnd < oldStart` (stale), snap `newEnd = newStart`.
- Floor rule: end must never be before start. If arithmetic would place end before start, snap end = start (timed: same minute; all-day: same day).
- The all-day-edit off-by-one (D-05) is already fixed at `EventForm.tsx:199`. Verify the `exclusiveEndToInclusiveDate` helper still applies correctly in edit pre-fill; do not re-implement.

**Interaction:**
- No toast or indicator when end auto-advances — silent and expected.
- The end date/time fields remain editable after the auto-advance; the user can override further.

### Surface 5: EventForm — recurrence bound control (999.8)

**Placement:** Appears below the frequency `<select>` in the recurrence section, shown only when recurrence ≠ "None".

**Layout:**
- Label: "Ends" (13px/400, `--color-text-secondary`).
- Three-option `<select>` or segmented control:
  - "Never" (default)
  - "On date" → reveals a date `<input type="date">` labeled "End date"
  - "After N times" → reveals a number `<input type="number" min="1">` labeled "Occurrences"
- Both revealed inputs have the same 44px touch-target height as other form fields.
- Validation errors shown inline below the field in 13px/400 `--color-destructive`.

**FREQ persistence fix (D-07):** The `RecurrencePreset` type in `apps/pwa/src/api/client.ts` must map to the correct `FREQ` string in `vevent.ts`. Verify the existing select value is serialized 1:1 into the RRULE FREQ field; if a daily selection persists as weekly, the bug is in the `preset → RRULE` mapping, not the form state.

### Surface 6: Series-edit prompt (999.9)

**Trigger:** User taps "Save" on an EventForm that is editing a recurring occurrence (occurrence has a `uid` whose event has `hasRrule=true`).

**Pattern:** Use the existing bottom-sheet/dialog pattern matching `DeleteConfirmationDialog`:
- Phone (≤767px): bottom sheet sliding up from below.
- Tablet/desktop (≥768px): centered dialog, max-width 480px.

**Layout:**
```
[ Sheet/Dialog ]
  Heading: "Edit recurring series"          (18px/600)
  Body: "This will update all occurrences   (15px/400, --color-text-secondary)
         of this event."
  ─────────────────────────────────────────
  [ Cancel ]        [ Update series ]
  ghost button      accent-filled (--color-member-0)
```

**Accessibility:**
- `role="dialog"`, `aria-modal="true"`, `aria-labelledby` pointing to the heading.
- Focus trap — Tab/Shift+Tab cycle between Cancel and Update series.
- Escape key fires Cancel.

### Surface 7: Spin animation fix (D-13)

**Problem:** `@keyframes spin` is currently defined only inside `PushPermissionPrompt.tsx` inline styles (`:359`). `SyncStateToast` and `LiveSyncIndicator` use `animation: spin …` but the keyframe isn't globally available when that component isn't mounted.

**Fix:** The `@keyframes spin` in `apps/pwa/src/styles/tokens.css` (lines 140–147) IS already defined globally. The bug is that components are referencing it via inline style `animation: 'spin 1s linear infinite'` which works, but the `@keyframes spin` must be confirmed present in the global stylesheet before the component mounts. Executor: verify `tokens.css` exports `@keyframes spin` and that `index.css` imports it before any component referencing the animation mounts. The `@keyframes spin` definition in `PushPermissionPrompt.tsx` is redundant but harmless — remove it after confirming the global definition covers all consumers.

---

## Animation Contract

| Animation | Definition | Applied to |
|-----------|-----------|-----------|
| shimmer | `@keyframes shimmer` in tokens.css | SkeletonCalendar loading bars |
| spin | `@keyframes spin` in tokens.css (global — do not redefine per-component) | Loader2 in SyncStateToast, PushPermissionPrompt, auth splash, session-expired interstitial |
| pulse | `@keyframes pulse` — confirm presence in tokens.css or add it | LiveSyncIndicator reconnecting dot |

Note: If `@keyframes pulse` is not in tokens.css, add it alongside `@keyframes spin`:
```css
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}
```

---

## Accessibility Contract

All new surfaces must meet:

| Requirement | Value |
|-------------|-------|
| Minimum touch target | 44px height (48px on primary CTAs) |
| Focus management | Focus trap in all dialogs/sheets; Escape closes |
| Live regions | `role="status"` for informational (spinner, sync); `role="alert"` for errors |
| Color contrast | 4.5:1 for body text; 3:1 for large text (18px+/bold) |
| Motion | `@keyframes spin` and `pulse` are UI-state feedback — not decorative; acceptable without `prefers-reduced-motion` guard, but a reduced-motion variant (opacity swap instead of spin) is a welcome addition if it fits the plan |

---

## Registry Safety

| Registry | Blocks Used | Safety Gate |
|----------|-------------|-------------|
| shadcn official | none | not applicable |
| Third-party | none | not applicable |

No third-party component registries used. All components are hand-rolled using the existing token layer.

---

## Checker Sign-Off

- [ ] Dimension 1 Copywriting: PASS
- [ ] Dimension 2 Visuals: PASS
- [ ] Dimension 3 Color: PASS
- [ ] Dimension 4 Typography: PASS
- [ ] Dimension 5 Spacing: PASS
- [ ] Dimension 6 Registry Safety: PASS

**Approval:** pending