flat vector-style icon of a Tunisian STEG electricity and gas bill, rectangular bordered paper, text '⚡STEG🔥' at the top, large amount '76.300 TND', barcode at the bottom, reference line 'Réf: 123456789', horizontal lines or boxes for bill details, clear electricity (⚡) and gas (🔥) icons, clean modern Tunisian-inspired color palette, clear iconography, no backgroundemoji