Rio 2099: Tropical Cyber Skyline

Cinematic 3D render, wide 16:9 desktop wallpaper composition, futuristic tropical bay city at night in the year 2099, a generic coastal metropolis curving around a dark bay with steep granite peaks rising behind it, no real landmarks named or copied, the skyline built from dark glass towers traced with teal and magenta neon, smaller hillside neighborhoods glowing as dense grids of lime, cyan and pink window lights climbing the slopes in organic patterns. In the sky, small delivery drones move on light trails, holographic advertisements dissolve into abstract tropical shapes without readable brand text, and thin haze softens distant towers. Foreground holds dark bay water with long neon reflections rippling toward the viewer and a narrow strip of wet beach at the lower edge, midground holds the illuminated harbor, marina lights, elevated transit line crossing the waterfront and the main tower cluster, background holds granite peaks in midnight-blue silhouette, layered clouds and a deep star-faint sky. Composition is a balanced elevated panorama with the bay as a leading curve, city density concentrated on the sides and calmer dark water and sky in the center for desktop clarity, foreground midground background deeply layered. Camera uses a 24mm lens from an elevated vantage, deep focus throughout. Lighting is dramatic nocturnal lighting, teal key glow from the water side, magenta accents on towers, lime hillside sparkle, reflections doubling the palette. Materials emphasize dark glass, wet stone, sea water, granite and holographic light. Style anchors include Unreal Engine blockbuster render and dark tropical cyberpunk. Hillside light color can shift to [gold and cyan] and drone density can change to [sparse]. Ultra detailed, 8k, sharp focus, rich contrast.