Modern city skyline at dusk with a range of sleek skyscrapers and bustling streets, set against a cool purple-blue tone backdrop, as glowing doors of various sizes and shapes float effortlessly in the air, their soft ethereal light illuminating the darkening urban landscape, with hues of deep indigo and blue undertones, and accents of bright purple highlighting the city's vibrant energy, the overall atmosphere is one of futuristic wonder and enchantment, with the glowing doors suspended at different heights and angles, casting a mesmerizing glow across the city's steel and glass towers.