Build a futuristic floating sky bas...

Build a futuristic floating sky base in Minecraft. The base should be medium-sized (not massive), with a clean modern design using white concrete, glass, and some light gray accents. The structure should be symmetrical and hover in the sky with support beams or anti-gravity style elements underneath. Include multiple levels connected by stairs or ladders, with open windows and a central core. Add small details like lighting, railings, and platforms, but keep the design simple and not overly complex.