Cliff Refuge City in Sand Sea AI Image Prompt

An immense refuge city carved into wind-eroded cliffs in an endless sea of sand, ultra-wide low-angle upward shot. In the foreground, undulating fine sand ridges lead like tides toward the center of the frame; in the midground, an ancient industrial refuge city embedded in a gray-brown escarpment, with layered setbacks, deep openings, cantilevered maintenance platforms, and exposed oxidized metal frameworks creating an oppressive vertical scale, with a few tiny travelers and vehicles at the edge of the city gate shadow for scale reference; in the background, the sand sea extends to a hazy horizon, with wind-blown dust passing through the canyon. Low-saturation ochre gold, sand yellow, and gray-brown dominate; intense low-angle sunlight cuts across the cliff faces and dunes from the rear side, highlights restrained, edges glowing with dry gold, the city interior sinking into deep brown-black shadow; the air carries a volumetric feel of uneven dust. Wind-eroded sandstone, frosted ceramic panels, oxidized alloy worn by sand, dust-filled seams, and heavy contact shadows are crisp and believable. A cinematic epic sci-fi still, with clear spatial hierarchy and a focused subject. Avoid nebulae, starship ports, cold blue-black-and-white palettes, neon lights, oversaturated orange filters, clutter, blurred subjects, and any existing film or game IP characters or iconic objects.