JOYCEQL/magic-resume ? reverse-engineered prompt

Build me a modern online resume editor. I'm imagining a clean web app with a two-panel design. On the left, there should be forms where a user can input their contact info, work experience, education, and skills. As they type, the right side should show a live preview of the formatted resume.

A key feature I want is AI-assisted writing. Next to the text fields for job descriptions, there should be a "magic" button that helps the user rephrase their bullet points or generate better descriptions. The app's design should feel very polished with smooth animations. Please include a dark mode toggle and a few simple color theme options. The most important function is the ability to export the final resume as a clean PDF. It should also automatically save progress in the browser so work isn't lost.