Generate a massive fantasy medieval...

Generate a massive fantasy medieval castle built in a believable Minecraft style. The castle should be very large, highly detailed, symmetrical, and suitable as the centerpiece of a kingdom. Style: - fantasy medieval - grand and realistic, not cartoonish - strong silhouette from far away - elegant but defensive - built as a proper fortified castle, not just a palace Scale: - extremely large - should feel like an endgame megabuild - multiple layers of walls and structures - enough size to include courtyards, towers, halls, and inner keep Layout: - mostly rectangular overall footprint - symmetrical front-facing design - large central keep - 4 or more major corner towers - multiple secondary towers - thick outer curtain walls - large gatehouse with portcullis - inner courtyard - outer cour