Turn a memory into a playable web experience

Build a single-page interactive story from [MEMORY OR FICTIONAL PREMISE]. The visitor explores [PLACE] by choosing three ordinary objects. Each object reveals one short scene, one sound description and one change to a central sentence. After all three, the visitor makes a final choice that changes the ending but not the known facts.

First produce a content map and state machine. Then implement semantic HTML, CSS and minimal JavaScript with no framework or external dependency unless requested. It must work at 320px width, with keyboard-only navigation, focus indicators, reduced-motion support and text equivalents for any audio. Keep all content local to the browser and do not require login, analytics or location access.

Provide the complete files, instructions to run locally and tests for every branch and restart. Mark fictionalised details. Do not insert private details from a real memory without permission.