Interview Prep: search and bookmarks

Two new ways to navigate the Interview Preparation tool. Search — a search box above the tabs filters across all the question content: role-specific questions, drilling, oilfield, incident investigation, hazards, and the new Modern HSE topics tab. Matched terms are highlighted, the matched items are pre-expanded, and each result is labelled with the section it came from so you can see what kind of question it is. Bookmarks — a star icon next to every question lets you bookmark the ones you want to revisit. The bookmark count appears in the search bar so you can see at a glance how many you've saved. Bookmarks persist on your device across visits.