# Design QA

## Comparison Target

- Source visual truth: `/Users/m_m/.codex/generated_images/019ec608-f980-7e00-90a9-e38f78e6f1e7/ig_0c47980a6757a383016a2ea10664048191b779d099993ba18e.png`
- Implementation screenshot: `docs/assets/demo-ja.png`
- Combined evidence: `docs/assets/design-comparison.png`
- Viewport: source normalized to implementation capture at 1280 x 720
- State: Japanese, scenario S001, role CS

## Full-view Comparison Evidence

The implementation preserves the selected concept's central information architecture: compact controls, memory/task context, three method lanes, red blocked state, role-conditioned gaps, clarification questions, and evaluation evidence below. It intentionally removes invented confidence values, document names, and model metadata that are not supported by the package.

## Focused Region Comparison Evidence

The three-lane method comparison was inspected in the combined image. Naive RAG remains visually quiet, Hybrid RAG emphasizes evidence, and HandoverGap RAG uses the strongest risk hierarchy. No custom imagery or icons were required by the selected concept.

## Fidelity Surfaces

- Fonts and typography: Streamlit's system font differs slightly from the generated concept but preserves scale, readable weights, and hierarchy. No clipped application copy was found.
- Spacing and layout rhythm: the three equal lanes, memory band, dividers, and dense table rhythm match the concept. Additional top padding was added to clear Streamlit's fixed toolbar.
- Colors and tokens: neutral surfaces, teal baseline emphasis, amber warning, and crimson blocked state match the concept's semantic palette.
- Image quality and asset fidelity: this is a data tool with no required imagery. The implementation does not replace visual assets with CSS drawings.
- Copy and content: generated placeholder claims and typo-prone text were replaced with benchmark-backed content. Japanese defaults to `正しい記憶でも、引き継げるとは限らない。`; English uses `Correct memories are not always transferable.`
- Interaction and accessibility: scenario, role, and language controls are semantic Streamlit widgets. Japanese and English states pass Streamlit AppTest.
- Responsiveness: Streamlit columns stack at narrow widths; custom memory bands switch to one column below 760px.

## Findings

No actionable P0, P1, or P2 findings remain.

## Patches Made

- Added top spacing so the title and language control clear the fixed Streamlit toolbar.
- Replaced generated mock copy with benchmark-backed memory, gaps, questions, and metrics.
- Added Japanese-first and English language states.
- Added functional scenario and successor-role controls.

## Follow-up Polish

- [P3] A future branded logo could replace the text-only product name after a real brand asset exists.
- [P3] A hosted demo could hide Streamlit's developer toolbar for a cleaner contest recording.

final result: passed
