Bug - table of contents can't close at 1450px screen widths

at 1450px, the table of contents is in an intermediate state where it's not quite rendering a working toggle.

<img width="2882" height="1464" alt="Image" src="https://github.com/user-attachments/assets/a7dbd2df-0474-486a-900c-1bbb9c4a455e" />
<img width="356" height="196" alt="Image" src="https://github.com/user-attachments/assets/f41c27d2-3a4b-4ea7-b255-f8dfb4583b3a" />