World Foundation Builder

Help me build a world for a [GENRE] story.

Starting concept: [YOUR BASIC IDEA]
Tone: [DARK/LIGHT/GRITTY/WHIMSICAL/etc.]
Scale: [SINGLE CITY/COUNTRY/PLANET/UNIVERSE]

Develop:
- The "big idea" that makes this world unique
- How ordinary people live day-to-day
- The power structures (political, economic, social)
- The main source of conflict in this world
- What's considered taboo or sacred
- Recent history that shapes current events
- A sensory detail for each sense (sight, sound, smell, taste, touch)