Black Friday Mega Sale Poster

Professional Black Friday e-commerce sale poster, portrait 9:21, livestream-graphics style with a radiant red header, coupon rail and flare-lit footer. [Colors] The top glows crimson-to-scarlet with radial rays, gold coins and flying red envelopes; the headline is gold and white on red; the tall middle is pure black display space; the coupon rail is red and cream with bold red figures; the bottom band ignites orange-red with white pills. No frame border. [Layout] The headline fills the top quarter with a ribbon banner beneath it; the black centre stays clear for products, with a tall offer rail pinned on the left; the bottom quarter flares up with light streaks and drifting red envelopes above a row of three service pills. [Subject] No people. A red satin ribbon banner, scattered gold coins, red envelope packets and sparkle bursts around the header; soft light flares and bokeh coins along the footer. [Headline] Main headline in fat gold brush type: "BLACK FRIDAY MEGA BUY"; ribbon banner in white on red: "Storewide $50 Off Orders Over $300". Left rail headed in red: "Stream Perks", a cream card labelled "Coupons" listing "$50 Off Orders Over $299" and "$100 Off Orders Over $499" in bold red. [Badges] Bottom row of three red pill badges: "Authentic Guarantee", "Express Courier Delivery", "Shipping Insurance Included". [Mood] Hot, rewarding and broadcast-ready; a red-gold burst of savings framed around a clean product stage.