Futuristic AI Tech Summit Event Poster

a clean high-tech promotional event poster for a futuristic technology conference, featuring a glowing holographic human hand interacting with a floating 3D crystalline neural network sphere, shimmering data nodes and intricate fiber-optic light pathways intersecting in mid-air, setting is a dark sleek minimalist glass exhibition hall with faint soft ambient blue floor lighting, cool blue, violet, and glowing white color palette with sharp cyan accent highlights, lit by radiant key light emanating directly from the central holographic sphere casting volumetric light rays into atmospheric haze, high contrast composition with high clarity, centered heroic focus on the glowing neural sphere, massive dark negative space in the upper vertical half designed for conference title overlay and date text, shot on Sony A1 with 24mm f/2.8 wide-angle lens, razor-sharp vector clarity, hyper-realistic glass refractions and particle light glow, modern corporate tech graphic design style, innovative ambient and visionary tone