Empty background for a 2D survival cartoon: an abandoned gas station at night, fuel pumps under a canopy, a small shop with dark windows, an empty parking lot, one flickering light. No people, no readable text or brands. Composition: the upper third is calm night sky, the lower third is clear empty asphalt. Muted dark blue palette with a warm flickering light, soft vignette. Same drawing style as the attached reference: 2D cartoon, hand-drawn look, thick black outlines, flat colors with simple soft shading, no texture. Vertical 9:16 (1080x1920). Keep all important objects inside the central 80% of the width.
