Create a massive highly detailed Mi...

Create a massive highly detailed Minecraft main hub for a server called Minerunes. IMPORTANT DESIGN RULES: This build must be a LARGE OPEN-AIR HUB COMPLEX, not a single building. Absolute minimum footprint: 400 x 400 blocks. Do NOT generate a giant portal. Do NOT generate a giant doorway. Do NOT generate a temple facade. Do NOT generate a gatehouse. Do NOT generate a giant arch. Do NOT generate a shrine entrance with glowing opening. Do NOT generate any large vertical centerpiece shaped like an entrance. Do NOT place the server name above a doorway or facade. The build must feel like a sprawling district-based hub, not a portal lobby. CORE THEME: Ancient runic fantasy hub with purple gemstone magic, mossy weathered ruins, overgrown stone structures, nature-reclaimed paths, and subtle pre