Datepicker loses alignment when switching to year/month picker when using appendTo="body"

[jonnomk]

Describe the bug

When using appendTo="body", the date picker loses it's alignment when selecting the month/year picker.

Pull Request Link

No response

Reason for not contributing a PR

• Lack of time
• Unsure how to implement the fix/feature
• Difficulty understanding the codebase
• Other

Other Reason

No response

Reproducer

https://stackblitz.com/edit/nrtwxxny?file=src%2Fapp%2Fdatepicker-basic-demo.ts

Environment

Windows 11

Angular version

21.2.11

PrimeNG version

v21

Node version

No response

Browser(s)

Chrome, Firefox

Steps to reproduce the behavior

When using appendTo="body", the date picker loses it's alignment when selecting the month/year picker.

Click on the input to open the date picker
Note that the date picker is aligned correctly
Click on the year or month selector
Notice that the alignment changes and is wrong
Please check the reproducer.

Expected behavior

The date picker should maintain its alignment

[github-actions]

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• Specific browser version(s) affected
• Confirmation of exact reproduction steps
• Whether this is a regression from a previous PrimeNG version

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[jonnomk]

Additional information provided in original bug. Not sure if this is a regression as we're using the latest version of PrimeNG.