Create a hyper-realistic panoramic photograph depicting a gigantic, ancient tree root system transformed into a sprawling, vibrant subterranean city for the Cinematic color grading. The camera hovers above a meticulously carved urban landscape, nestled within colossal, intertwining roots. Tiny, bioluminescent vehicles navigate winding pathways carved into the root surface; multi-tiered dwellings cling to fibrous structures, their windows glowing warmly. A central, massive root forms a towering skyscraper, its bark integrated with intricate architectural details. At the very top edge of the image, clearly visible, is the overlay text 'Check Comment for Prompt'. Details to include: Miniature glowing gondolas in phosphorescent root-canals; ancient illuminated runes etched into bark; tiny figures bustling on balconies and bridges; wisps of steam from geothermic vents; luminous fungal streetlights and decor. The city is encased within a vast, cavernous underground chamber, its ceiling a tapestry of smaller, delicate roots dripping condensation. Colossal stalagmites and stalactites pierce the distant gloom, some acting as natural support pillars. Faint, ethereal light filters down from unseen surface cracks, dappling upper roots, casting long, intricate shadows. The air is thick with ancient secrets. Lighting is a deep, moody chiaroscuro, emphasizing the dramatic scale of roots and the intimate glow of the city. Warm, inviting artificial lights contrast sharply with cool, mysterious ambient blues and purples from deeper caverns and bioluminescent flora, creating a sense of wonder and awe, tinged with delicate intimacy and the vast unknown. Color palette: Rich earthy browns, deep greens of roots, vibrant emeralds and sapphire blues from bioluminescence, warm golden and amber glows from city lights, contrasted with subtle silver and grey tones of moisture and rock. Mood/atmosphere: Mystical, awe-inspiring, and profoundly imaginative, evoking a sense of discovery and hidden beauty. Style: Masterpiece, highly detailed, photorealistic, intricate, grand scale, fantasy art, cinematic lighting, ultra-resolution, volumetric lighting, digital painting, fine art photography. At the very bottom edge of the image, clearly legible, are the credits 'aisuperhub.io'.