[BUG] Desktop App — Sidebar overlaps chat content without left margin (macOS)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Bug Description

When the sidebar is open in the Claude Desktop App on macOS, it overlaps the chat
content panel. The chat text starts at the very left edge of the remaining space
(or even behind the sidebar), instead of having a proper left margin.
This causes the beginning of each line to be hidden behind the sidebar.

What Should Happen?

Expected Behavior

The chat content should either:

• Push to the right when the sidebar is open (like claude.ai in the browser), or
• Have a sufficient left margin so text is never hidden behind the sidebar overlay.

Actual Behavior

The sidebar overlays the chat panel and cuts off the left side of the text content.

Error Messages/Logs

Steps to Reproduce

Steps to Reproduce

1. Open Claude Desktop App on macOS
2. Open the sidebar (⌘ + Shift + S or click the column icon)
3. Open any existing conversation
4. Observe that the chat text is partially hidden behind the sidebar

Claude Model

Other

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.117 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

<img width="1129" height="1064" alt="Image" src="https://github.com/user-attachments/assets/71a20da0-a00b-413b-8d14-193128155300" />

• MacBook Pro 16-inch, 2019,

2,6 GHz 6-Core Intel Core i7
32 GB 2667 MHz DDR4
MacOS 26.5 Beta (25F5058e)

• App: Claude Desktop App

Version: Claude 1.3883.0 (93ff6c) 2026-04-21T17:24:01.000Z