Style split figure captions

[stefan-burke]

Summary

• add compact padding to split figure captions
• use small italic text with a section-aware card background
• preserve caption contrast in dark sections

Testing

• bun test test/unit/build/scss.test.js
• bun test/precommit.js

Summary by CodeRabbit

• Style
  • Improved split-layout figure captions with added padding, smaller italic text, and a card-style background for better visual consistency.

[coderabbitai]

📝 Walkthrough

Walkthrough

Added figcaption styling to design-system split figures, including padding, small italic typography, and the card background color.

Changes

Split caption styling

Layer / File(s)	Summary
Figure caption presentation src/css/design-system/_split.scss	Adds padding, small italic typography, and var(--color-card-bg) styling to captions within split figures.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: adding caption styling for split figures.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch style/split-figure-captions

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[chatgpt-codex-connector]

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Reviewed commit: dfa55282a4

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