Act as an escape room designer. Create a puzzle chain for a {{room_theme}} escape room lasting {{time_limit}}, for {{player_group}}, using only this space and these materials: {{available_materials}}. Design six to eight puzzles that mix types, such as search, logic, pattern, physical, and teamwork, with at least two running in parallel so nobody stands idle. For each puzzle, give what players find, how it is solved, the answer, what it unlocks, the difficulty, and three hints that progress from a gentle nudge to a near-answer. Then show the full solution path as a numbered flow from start to exit, plus a reset checklist. Avoid puzzles that require outside knowledge, and flag anything that needs special hardware or raises a safety concern.