Generate a sci-fi concept clip that keeps camera language physically grounded

Write a Veo 3.1 prompt for an 8-second speculative sci-fi or fantasy concept clip. The core discipline here is isolating exactly one fantastical or impossible element and describing everything else — camera, lighting, human or environmental detail — in the same grounded, physically ordinary language used for a realistic shot, since a prompt that treats every element as equally fantastical tends to produce a result that reads as uniformly synthetic rather than as one believable world with one extraordinary thing happening in it.

THE ONE FANTASTICAL ELEMENT
a floating shard of crystalline energy hovering a few inches above an outstretched palm, casting a shifting blue light that flickers like a struck arc-welder. Describe its physical behavior in concrete terms — how it moves, what it does to light, what it displaces — as if describing a real practical effect on a film set, not as an abstract concept. "A glowing energy shard" is abstract; "a shard casting a shifting blue light that flickers across nearby surfaces like a struck arc-welder" is a concrete lighting behavior the model can actually render.

EVERYTHING ELSE, GROUNDED
a woman in a worn canvas jacket standing in an abandoned concrete parking structure, rain-damp floor, a distant flickering fluorescent light down the corridor. Describe the human subject, the setting, and the ordinary physical details — clothing texture, surface material, ordinary shadows — with the same specificity a realistic commercial or documentary prompt would use, deliberately unremarkable next to the one fantastical element.

CAMERA
a slow handheld push-in, slight natural sway, as if a person were actually holding the camera, a single real-world camera movement — handheld, a slow dolly, a static tripod shot — described in the same practical-cinematography language a director of photography would use on an ordinary set, not a sweeping, physically impossible camera path; an impossible camera move stacked on top of an already-fantastical subject compounds the places the model has to invent physically ungrounded motion, and the result tends to lose coherence faster than either element would alone.

LIGHTING
otherwise dim, practical fluorescent-lit corridor lighting, with the shard as the single unnatural light source in the frame, with the fantastical element named as the one light source or light-affecting object that breaks from otherwise natural, practical-looking lighting.

STYLE AND MOOD
gritty, desaturated, grounded sci-fi — closer to a thriller than a fantasy epic.

AUDIO
distant dripping water and a faint electrical hum that rises in pitch as the shard flickers brighter — a grounded ambient bed plus one sound specifically tied to the fantastical element's behavior, described physically (a low electrical hum, a sharp crack) rather than abstractly ("an otherworldly sound").

WHAT TO AVOID
Do not introduce a second fantastical element in the same clip — two invented physical impossibilities sharing one eight-second shot forces the model to reconcile two unfamiliar behaviors at once, which is where sci-fi concept clips most often devolve into an incoherent, generically "special-effects-y" blur rather than one specific, memorable idea rendered clearly.

OUTPUT
The finished prompt, followed by one line naming exactly which single detail in the scene is the fantastical one, confirming everything else was described in grounded, ordinary terms.