Two distinct render bugs producing overlapping text on multi-page PDFs:
1. Bare-URL duplication. The print stylesheet injects `(href)` after every
external link via `a[href^="http"]::after`. When pandoc/marked
auto-links a bare URL or renders `[X](X)`, the visible text already
equals the href, so the pseudo-element produces "URL (URL)" and the
trailing duplicate wraps onto the next line, colliding with the
following block (e.g. "https://pagespeed.web.dev/ (https://...)" then
"• Ouvrir, taper l'URL...").
Fix: post-process the body HTML in handover-to-pdf.sh; tag every
`<a href="X">X</a>` (text == href, ignoring trailing slash + case)
with `class="bare-url"`, and exclude `a.bare-url::after` from the
URL-injection rule. Named links still get `(URL)` for print legibility.
Belt-and-braces: add `white-space: nowrap` and `break-inside: avoid`
on the remaining `::after` so future long URLs cannot wrap across
page boundaries either.
2. List item splitting across page boundary. `li` had only
`orphans/widows: 3` and no `break-inside`, so a long item could put
its bullet on page N and its text on page N+1, overlapping unrelated
content. Heading-to-first-block adjacency was also unprotected, so
"heading at bottom of page A / intro paragraph or first bullet at top
of page B" could produce visual overlap during reflow.
Fix: add `li { page-break-inside: avoid; break-inside: avoid; }` and
`h{1..4} + p|ul|ol { break-before: avoid; }` so list items stay
intact and intros stay glued to their heading.
Verified end-to-end: rendered sample md with bare URL + named link +
heading-followed-by-list straddling a page break; pdftotext shows each
URL once, no orphaned bullets, no `::after` warning from weasyprint.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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