Design a modern architectural building inspired by the festive spirit and elegant shape of a Christmas tree, with a special focus on the enchanting glow of warm lighting at night. The structure should feature sharp, angular lines that evoke the triangular silhouette of a Christmas tree, with cascading levels or layers that mimic the tree's branches. At night, the building should come alive with warm, golden lighting that wraps around the exterior, resembling the twinkling lights of a Christmas tree. Soft, ambient lights should be integrated throughout the design, casting a cozy, inviting glow that contrasts beautifully with the night sky. Use natural materials such as wood, glass, and steel to blend tradition with modernity. The building’s interior should have an open, festive atmosphere, with clear sightlines to the outside that allow visitors to enjoy the warm, illuminated exterior. Surround the structure with lush greenery, trees, and festive decorations that enhance the Christmas tree concept, making it an ideal venue for public events, holiday markets, or celebrations that bring people together under the glow of a joyful, holiday-inspired space.