Pop art poster prompt, landscape 3:2: a bold pop art shopping carnival poster in the style of 1960s screen-print art, huge red numerals 11.11 in the center on a cream background, the headline SINGLES DAY in clean black block letters beneath, a shopping bag, a sneaker and a gift box drawn as flat graphic icons with thick black outlines in saturated red, yellow and blue, halftone dot textures, confetti dots and starburst shapes scattered around the edges, crisp poster layout with strong color blocks and clear hierarchy, clean readable typography, no watermark, no logo.