Fullscreen country selector breaks when the virtual keyboard is open

Prerequisites

• I am using the latest version (v29.2.3) of both intl-tel-input and utils.js.
• We use libphonenumber for formatting, validation, and placeholder numbers. If my issue relates to one of these things, I confirm I have used their test site to ensure the issue is not with them, and will provide a link to the test results page showing this. Else, I have reported the issue to them instead of here.
• I have searched the existing issues (including closed issues) to ensure this has not already been discussed.

Integration

Vanilla JavaScript library

Current behaviour

Fullscreen popup is cut off / list collapses when the keyboard opens

Version: 29.2.3 Environment: Options: countrySelectorMode: "FULLSCREEN", countrySearch: true, separateDialCode: true

What happens

When the virtual keyboard is open, the fullscreen popup is misplaced:

Tap the flag — the popup opens, the search input is auto-focused, the keyboard slides up, and the country list collapses: only the search input stay visible. Dismissing the keyboard restores the full list.

Expected behaviour

Expected behaviour

The popup should stay inside the visual viewport while the keyboard is open — top edge at the top of the visible area, bottom edge just above the keyboard — with the country list scrolling in whatever space is left. Exactly how it looks when the keyboard is dismissed.

Steps to reproduce

Steps to reproduce

1. Init an input with countrySelectorMode: "FULLSCREEN", countrySearch: true, separateDialCode: true.
2. Open the page on a phone.
3. Tap the country button (flag).

The popup opens, the search input is auto-focused, the keyboard slides up, and the country list collapses — only the search input stays visible. Dismiss the keyboard and the full list comes back.

Anything else?

No response