Cyberpunk style: A sleek futuristic email interface floating as a holographic projection in a neon-lit dark room, with glowing cyan and magenta data streams flowing between two distinct mail server towers—one classic and industrial with brass fittings, the other ultramodern with chrome surfaces. Digital envelopes morph and transform mid-flight between the towers, their forms shifting from traditional paper shapes into sleek geometric packets. Rain streaks across a massive window in the background revealing a sprawling cityscape with towering skyscrapers. The holographic interface casts colorful reflections on a wet metallic desk surface below.