A sprawling metropolis crumbles under the relentless assault of a shimmering tide of nanomachines, their microscopic forms coalescing into writhing, metallic tendrils that snake through streets and climb skyscrapers. Fractalized patterns of circuitry consume once- proud structures, transforming glass and steel into alien architectures that pulse with eerie, electric life. The sky above is a roiling mass of dark clouds, shot through with veins of silver that mirror the infection below. In the foreground, desperate figures flee, their forms partially consumed by the advancing swarm, leaving behind trails of disintegrating pixels. Shafts of sickly green light pierce the gloom, casting long shadows and highlighting the surreal transformation of the urban landscape. The horizon is a jagged line of half- dissolved buildings, their silhouettes barely recognizable as the nanomachines reshape reality itself. A haunting sense of inevitability permeates the scene, the last gasp of human civilization drowned out by the silent, inexorable march of a new, post- human era. Hyper- detailed macro shots blend seamlessly with vast, cinematic vistas, creating a dizzying sense of scale that emphasizes the overwhelming nature of the nanomachine apocalypse