Title: Type Playground
Prompt: Build a bold, responsive interactive typographic poster with massive black system type, a vivid color field, a compact control panel, editable text and a palette cycle. All code must be inline and work offline.
Description: A punchy poster-making toy celebrates letters as graphic shapes.
Visual techniques: oversized type, brutalist grid, high contrast, saturated color, tight tracking.
Interaction model: Typing updates the poster; a button cycles its background color.