Design a towering architectural masterpiece shaped like a pile of stacked Christmas gift boxes, each one a different size and vibrant color—brilliant reds, shimmering golds, sparkling greens, and deep blues. The structure rises into the skyline like a monumental Christmas tree made of presents, with each box featuring angular, geometric designs and glowing edges that shift and change as light reflects off their surfaces. The boxes are stacked in a seemingly random fashion, creating a dynamic, asymmetrical silhouette, as if frozen in a moment of holiday excitement. The building’s facade combines high-tech materials, such as reflective glass and polished metal, with playful festive details—oversized ribbons and holographic gift tags projected onto the surfaces. Some boxes are designed with transparent sections that reveal indoor holiday scenes, like floating snowflakes or suspended mistletoe, bringing the Christmas spirit to life. At the top, the highest gift box is crowned with a giant, illuminated bow, made from energy-efficient LED lights that sparkle and shift colors in tune with the season. Holographic projections dance across the building's surface, creating digital snowfalls and festive animations throughout the holiday season. Inside, visitors navigate through multiple levels of open spaces, designed with sleek futuristic interiors that are interspersed with whimsical holiday elements like frosted glass walls resembling snow, sculptural reindeer made from chrome, and ornament-shaped elevators that offer panoramic views of the surrounding city. The fusion of high-tech innovation and the warmth of Christmas decorations creates a striking holiday haven—both a celebration of the season and a visionary architectural feat.