Build RIFTMARK CITADEL on flat terr...

Build RIFTMARK CITADEL on flat terrain, 119x96. Make it a large realistic Western European medieval castle, detailed for close-up viewing, not oversized or exaggerated. Use a clean palette: mostly stone bricks with deepslate trim, dark oak beams, and dark red/brown gabled roofs. Avoid random texture spam, heavy moss, bright colors, pagoda roofs, cone roofs, and mountain terrain. Use a 17-wide gatehouse with 5-wide arch, 4 corner towers, 4 secondary towers, a central keep about 21x17 and 40-48 blocks tall, 2 courtyards, buttresses, arches, balconies, chimneys, narrow windows, battlements, lanterns, and layered rooflines. Put a large vertical black banner with red border, white crown, and big white R on the front keep. Make it detailed, clean, medieval, and realistic up close.