Move the repeated 'html, body { margin:0; padding:0; height:100% }' block from
main.css, search.css, tfe.css, and apropos.css into the single canonical location
in common.css. All four public page stylesheets already load common.css first, so
the rule applies identically — no visual change.
Fix pages-edit.php invalid HTML: the EasyMDE <link rel=stylesheet> was placed
inside <body> (after head.php was already closed), which is invalid. Add an
$extraCss hook to templates/admin/head.php so pages can inject <link> tags into
<head> via an array variable, matching the pattern already used by the public
templates/public/head.php. Also add a symmetric $extraJs hook to
templates/admin/footer.php for future use. pages-edit.php now sets
$extraCss = ['easymde.min.css'] before requiring head.php; the EasyMDE JS
<script> and its inline init remain in <body> in the correct load order.
SQLite performance (Database::__construct):
- PRAGMA journal_mode = WAL: eliminates full-DB read locks on write, safe
for concurrent PHP-FPM workers
- PRAGMA synchronous = NORMAL: durable on commit without full fsync per write
- PRAGMA cache_size = -8000: ~8 MB page cache per connection
Accessibility foundation (WCAG 2.1 AA):
- common.css: add .sr-only utility, .skip-link (hidden until focused),
global :focus-visible (2px purple outline, 2px offset),
prefers-reduced-motion guard; remove bare outline:none from
.site-search__input
- admin.css: same :focus-visible, skip-link, and motion guard scoped to
admin purple; remove outline:none from .admin-input/.admin-select/
.admin-textarea and .admin-filters select (both had :focus border rules
already, so focus is still visually communicated)
- search.css: remove outline:none from .search-filter-select (already has
:focus border-color rule)
- All 5 public pages (index, search, tfe, apropos, licence): add
<a href="#main-content" class="skip-link"> as first child of <body>;
add id="main-content" to <main>
- templates/admin/head.php: same skip link; aria-label="Navigation admin"
on <nav>; id="main-content" on all 10 admin <main> elements
All 4 test suites pass (unit, integration, security, rate-limit).
