style(docs): make legacy-docs banner taller and more prominent

[keydunov]

Bumps the Nextra banner padding and font-size so the "Visit the new docs" notice on the old documentation site is harder to miss.

Check List

• Tests have been run in packages where changes have been made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

[claude]

Claude finished @keydunov's task in 1m 27s —— View job

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Code Review: PR #10910

• Gather context and review changes
• Analyze code quality, security, and best practices
• Provide review feedback

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Scope: +7 lines in docs/app/globals.css — adds CSS overrides for the Nextra banner to make the legacy-docs redirect notice more visible.

/* Legacy-docs Banner - taller bar so the "visit new docs" link is more prominent */
.nextra-banner > div {
  padding-top: 32px !important;
  padding-bottom: 32px !important;
  font-size: 1.125rem !important;
}

Feedback

Looks good. This is a small, focused styling change and accomplishes its stated goal. A few minor observations:

1. !important usage — Consistent with the rest of globals.css, which uses !important throughout to override Nextra's built-in styles. No concern here given the established pattern.

2. Mobile responsiveness — The 32px vertical padding might feel large on small viewports where vertical space is at a premium. Consider whether a media query to reduce padding on mobile would be worthwhile (e.g., padding: 16px below 768px). Not a blocker — the banner is intentionally meant to be prominent, so the extra height may be desirable even on mobile.

3. Selector specificity — .nextra-banner > div is a reasonable selector for targeting Nextra's banner container. It depends on Nextra's internal DOM structure, but that's an accepted trade-off already present across this file.

4. Comment quality — Good descriptive comment explaining the "why" behind the override.

No security, performance, or testing concerns for a CSS-only change of this size.

Verdict: Approved. Clean, minimal change that fits the existing codebase conventions.