Say It Back

Build a mobile portrait web app called “Say It Back”.

Cover: A round flat-colour creature on a bold two-tone field, a speech bubble already open, the title set into the colour block. A full-bleed opening artwork drawn in code with the title integrated into it, then one short tutorial line and exactly one text button that starts play.
Core action (tap one of the four response gestures): The creature says one short line; pick one of four responses — nod, hug, pat, stay silent — and its body language answers instantly, with the right choice depending on what the line actually needed.
Result: a response card with a match percentage, the line you handled best and what the creature calls you. Put a real Share button on the result screen (it must post to the Eazo community) and keep Replay next to it.
Visual bar: flat bold shapes deforming with emotion, speech bubbles inflating, colour field flipping on a wrong read, confetti of shapes on a hit.

Global requirements: mobile-first portrait, touch only, 100dvh with safe areas, no hover dependence. Built-in i18n with exactly two locales (English default, Chinese only after the user taps the EN/中文 toggle placed clear of the status bar), never mix languages on one screen, share output always English. Absolutely no external APIs, no login, no background music. Every control must actually work — no placeholders.