Retro vintage graphic design illustration, 1960s-1970s American diner and fast food merchandise style, bold clean line art with halftone dot texture on the main character, one color - deep blue on off-white cream background. Central figure: large juicy burger, sauce slightly dripping Clean balanced composition, plenty of breathing room, perfect for t-shirt and merch print. No text anywhere, no logos, no words. Sharp outlines, high contrast, classic mid-century illustration style, vintage merchandise graphic aesthetic, white background, highly detailed linework