Ex Machina stages its AI drama inside Nathan's buried bunker-lab: board-formed concrete walls under cold recessed LEDs, fronted by cyan-tinted glass partitions. It is a windowless, clinical gray space — hard, shiny, surveilled — softened only by deliberate warm wood.

This system distills that grade into an interface: a concrete-gray ground, cyan glass and cold LED as the signature, and warmth held to a single accent. The voice is precise, machined, and instrument-like.