# v0.19.0 Site-Wide Accessibility and Responsive Validation

<a id="v0190-site-wide-accessibility-responsive-validation"></a>

## Scope

Validation covers the v0.19.0 shared-shell and non-research accessibility/responsive refinement while regression-checking all 85 canonical routes and the preserved v0.18.0 research authority surfaces.

## Passed checks

- all 106 PHP files lint successfully;
- native JavaScript passes syntax checking;
- all 85 canonical sitemap routes return HTTP 200;
- every canonical route has exactly one H1, one main landmark, one footer, unique IDs, named buttons, image alt attributes, valid disclosure summaries, and resolvable ARIA ID references;
- navigation landmarks on each route use non-duplicated accessible labels;
- shared menu toggle controls `site-nav`, starts collapsed, and has explicit open-state naming;
- no-JavaScript mobile-navigation fallback rules are present;
- Share exposes nine atomic status regions, contextual repeated image controls, a described silent video, visible video description, and no autoplay attribute;
- identity continuity renders five semantic comparison items and ten native disclosure summaries;
- the Human–Machine Boundaries page renders a four-step ordered process list;
- shared CSS includes 44/48px control-target rules, narrow-screen wrapping, reduced-motion suppression, and forced-colors handling;
- all 25 curated report bodies are byte-identical to v0.18.0;
- `report-manifest.json` and accepted glossary definitions are byte-identical to v0.18.0;
- original/curated report hash verification remains valid for all 25 manifest entries;
- active taboo leakage scan passes;
- lightweight secret-marker scan passes;
- handoff intake contains inert placeholders only;
- final archive clean-extracts at web root and repeats PHP/route/static checks successfully.

## Evidence limits

Chromium headless navigation did not provide a usable interactive browser test in this environment. Keyboard focus logic, reduced-motion behavior, forced-colors rules, target sizing, and responsive structure were therefore validated through source/static checks and rendered HTML inspection rather than claimed cross-browser or assistive-technology field certification.

No live deployment was performed. Production DNS, TLS, cache/CDN behavior, server rewrite configuration, real-user performance, and search-console state remain external and unverified.