A floating product placeholder [INSERT PRODUCT NAME HERE] positioned at absolute center, levitating in mid-air, full view no cropping with generous padding. Background is pure void infinite black depth (#000000), excluding all lighting boxes, softboxes, stands, pedestals, platforms, text, watermarks, props, surface reflections, and studio equipment. Material: anodized obsidian metal with microscopic grit, high-gloss fluid chrome, and Mac Pro inspired precision-machined hemispherical lattice (3D lattice venting pattern). Optical effects: monatomic light dispersion, prismatic diffraction on edges, ethereal holographic sheen. Key colors: Pure Black (#000000), Electric Indigo (#4B0082), Phthalo Blue (#000F89), Spectral Iridescence (thin-film interference rainbow highlights). Lighting: hard rim lighting, chiaroscuro, high contrast, sharp specular highlights, no ambient fill. Negative constraints: out of frame, cut off product, blurry edges, tripod, light stand, floor, table, shadows on floor, light flare icons, glowing boxes, copyright text, logo, cluttered background, grey tones, messy geometry. Technical specs: Hyper-realistic 3D render, Octane Render, Raytraced, 8k, Unreal Engine 5, Cinematic Lighting.