Design a towering, livable building with an intensely terrifying and nightmarish aesthetic, while retaining an architectural style. The structure should loom ominously, with jagged, irregular forms, sharp spires, and an almost organic, claw-like silhouette. Use dark, foreboding materials such as matte black steel, charred concrete, and reflective glass that appears fractured or distorted, creating an unsettling sense of chaos. Incorporate twisted, asymmetrical overhangs, narrow vertical slits for windows, and shadowy voids in the facade that suggest hidden spaces. Add haunting lighting features, such as dim red or flickering white lights, strategically placed to cast long, distorted shadows and create an eerie glow at night. Include grotesque, abstract architectural details, such as spiked railings, skeletal frameworks, or uneven surfaces that look unnatural and unsettling. Inside, maintain the livability but add an unsettling edge, with sleek modern furniture juxtaposed against dark, oppressive interiors. Use materials like polished obsidian, metallic accents, and soft lighting that barely illuminates vast, cavernous spaces. Surround the base of the building with barren, twisted trees, jagged rock formations, and creeping fog for an extra layer of menace, making the entire structure feel like it emerged from a dystopian nightmare while still functioning as a home.