Build a massive dark medieval volca...

Build a massive dark medieval volcanic fortress integrated into a rugged, ash-covered landscape dominated by a large central volcano. The castle should be positioned near or partially built into the volcanic mountain (not directly inside the crater, but on the outer slope or lower ring), overlooking the surrounding wasteland and coastline. It must feel naturally embedded into the terrain, adapting to height differences, cliffs, and slopes. === TERRAIN INTEGRATION === - Use the natural terrain layers: ash (coarse dirt), gravel, blackstone, and deepslate to smoothly blend the structure into the environment - Build foundations that follow uneven terrain instead of flattening it - Add support pillars and buttresses going down slopes and cliffs - Create cracked ground, lava veins, and scorche