1. Accent color: Edit the CSS variable --accent-color in :root (line ~20). Current: #c79a4b. All <em> inside titles inherit it.

2. Hero media: Click tabs above. Replace image src, video source, or iframe URL. YouTube supports ?start=30&end=90.

3. Grain intensity: Reduced 25% by default. Change --grain-opacity-light / dark variables.

4. Font toggle: Choose Aptos (system), Open Sans, or Playfair Display. Persists via IndexedDB.

Theme & font choices are saved automatically. Light/Dark mode remembers next visit.