Generate a huge fantasy medieval Mi...

Generate a huge fantasy medieval Minecraft castle with a symmetrical rectangular layout, central keep, corner towers, gatehouse, thick walls, courtyards, battlements, and dark roofs. Use ONLY these exterior blocks: stone bricks, cracked stone bricks, cobblestone, stone, smooth stone, and deepslate for roofs. Optional accents: small amounts of andesite, mossy stone bricks, spruce wood, dark oak wood. ABSOLUTELY DO NOT USE: ores, bookshelves, glass blocks, terracotta, concrete, wool, planks as main walls, colorful blocks, decorative filler blocks, or random substitute blocks. Important: if unsure, use stone bricks instead of any other block. prioritize block correctness and material consistency over texture detail. keep the palette simple, clean, and realistic.