Last fix added page-break-inside: avoid but the boxes still split
because wkhtmltopdf 0.12 ignores that rule inside flex containers,
and BOTH the .sig-box (display: flex) AND the Bootstrap .row
wrapper were flex.
Replace both with non-flex equivalents:
- .sig-box: dropped `display: flex` + `flex-direction: column` +
`justify-content: flex-end`. Layout now uses padding + a fixed-
height .sig-line block + the muted label below. Same visual
result, but a plain block element so wkhtmltopdf honors the
page-break rule.
- Replaced `<div class="row">` + 3 `<div class="col-4">` (Bootstrap
flex grid) with a `<table class="sig-table">` containing one row
of three 33% tds. wkhtmltopdf treats table rows as atomic for
page-breaking, so the whole signature row now stays on a single
page.
Verified with pypdf: page 1 has the cert statement, page 2 has
all three signature labels together — no more sliced boxes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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