Create a 3D abstract wallpaper with a modern, sleek design, inspired by the style of Windows 11 wallpapers. The main 3D form should have smooth, flowing curves with a dynamic, organic shape, and should be rendered with a dark, metallic finish. The form should primarily be in dark shades of gray, giving it a sophisticated and industrial look, while leaving ample negative space to create a balanced composition. Add subtle, vivid accents in the color #C8E70C to the metallic surface, strategically highlighting the edges and curves to add a touch of contrast and vibrancy against the dark gray tones. These accents should reflect light, emphasizing the form's contours and adding depth to the image. The background should feature a soft, light gray gradient, transitioning smoothly from a lighter to a slightly darker shade, enhancing the metallic sheen and creating a strong contrast with the dark form. The 3D form should be positioned slightly off-center, with lighting that accentuates the metallic texture, creating sharp reflections and highlights that enhance the realism and tactile quality of the material. The overall style should be clean, modern, and visually striking, with a focus on the interplay between the dark gray metallic surface and the vivid #C8E70C accents for a well-balanced and polished finish --ar 9:16