A small, highly detailed gothic sat...

A small, highly detailed gothic satanic base entrance designed as a standalone structure (no terrain, no cliff, no surrounding blocks). Use only a black color palette with varied dark blocks including blackstone, polished blackstone bricks, obsidian, crying obsidian, and similar black materials. Do not use any ores, minerals, or bright-colored blocks. Focus on fine intricate detailing, sharp gothic arches, layered depth, spikes, and subtle red glowing accents (like lava or red glass). The structure must be compact (under 15x15 blocks), symmetrical, intimidating, and survival-friendly while still looking complex and refined.