---
id: T02
parent: S06
milestone: M016
provides: []
requires: []
affects: []
key_files: ["frontend/src/App.css", "frontend/src/pages/Home.tsx"]
key_decisions: ["Kept section-specific CSS classes as empty shells with override-only comments rather than removing them — preserves BEM naming for future section-specific tweaks"]
patterns_established: []
drill_down_paths: []
observability_surfaces: []
duration: ""
verification_result: "Build passes (tsc + vite, 0 errors). Grep confirms section-heading in App.css and Home.tsx, border-bottom accent in App.css."
completed_at: 2026-04-03T06:22:08.178Z
blocker_discovered: false
---

# T02: Added .section-heading utility class to unify four heading styles, tightened hero/how-it-works spacing for above-fold content, and added 2px cyan border-bottom to header

> Added .section-heading utility class to unify four heading styles, tightened hero/how-it-works spacing for above-fold content, and added 2px cyan border-bottom to header

## What Happened
---
id: T02
parent: S06
milestone: M016
key_files:
  - frontend/src/App.css
  - frontend/src/pages/Home.tsx
key_decisions:
  - Kept section-specific CSS classes as empty shells with override-only comments rather than removing them — preserves BEM naming for future section-specific tweaks
duration: ""
verification_result: passed
completed_at: 2026-04-03T06:22:08.178Z
blocker_discovered: false
---

# T02: Added .section-heading utility class to unify four heading styles, tightened hero/how-it-works spacing for above-fold content, and added 2px cyan border-bottom to header

**Added .section-heading utility class to unify four heading styles, tightened hero/how-it-works spacing for above-fold content, and added 2px cyan border-bottom to header**

## What Happened

Three CSS/JSX changes: (1) Created .section-heading utility class and --accent modifier, applied to all four homepage section headings, stripped duplicated declarations from individual heading selectors. (2) Reduced hero padding, value-prop margin, and how-it-works gap/margin for tighter above-fold layout. (3) Added border-bottom: 2px solid var(--color-accent) to .app-header.

## Verification

Build passes (tsc + vite, 0 errors). Grep confirms section-heading in App.css and Home.tsx, border-bottom accent in App.css.

## Verification Evidence

| # | Command | Exit Code | Verdict | Duration |
|---|---------|-----------|---------|----------|
| 1 | `cd frontend && npm run build` | 0 | ✅ pass | 1500ms |
| 2 | `grep -q 'section-heading' src/App.css` | 0 | ✅ pass | 50ms |
| 3 | `grep -q 'section-heading' src/pages/Home.tsx` | 0 | ✅ pass | 50ms |
| 4 | `grep -q 'border-bottom.*accent' src/App.css` | 0 | ✅ pass | 50ms |


## Deviations

None.

## Known Issues

None.

## Files Created/Modified

- `frontend/src/App.css`
- `frontend/src/pages/Home.tsx`


## Deviations
None.

## Known Issues
None.
