Adjust sign in button

[Bofan-Zhu]

Description

Currently, the buttons in the header (e.g. Sign In, Are you a professor) visually clash with buttons on the pages.

To align with modern minimalist patterns and reduce visual noise, the header buttons should be text buttons which establishes a clearer hierarchy where the content is the main focal point.

Tasks

• Remove borders from header buttons

Acceptance Criteria

• Visual hierarchy of the buttons is preserved
• Buttons do not visually clash with buttons inside content