Black Friday Mega Sale Doorbusters

[Format] Professional Black Friday e-commerce sale poster, vertical 9:16, festive banner-column style with four giant vertical ribbon strips and a dense red offer zone below. [Colors] Four tall pointed ribbons in orange-red, amber-yellow, cyan-blue and magenta-purple rising over a bright red ground streaked with pink and yellow rays; ribbon letters in white and dark navy; badges in yellow and green; bottom type in cream, yellow and red. No frame border. [Layout] The four ribbons run from the top edge down past the midpoint, each carrying huge vertical caps and a small icon; a yellow "SALE" starburst sits left, a white cart icon centre, a yellow "50% OFF" oval and a green flame "HOT" chip right; below, a stacked headline block with ribbon flourishes, an offer line, and a three-column footer with a date box. [Subject] No people. Pure graphic composition: ribbon banners, starbursts, cart silhouette and flame badge only. [Headline] Ribbon columns read vertically "BLACK" / "FRIDAY" / "DOORBUSTERS" / "DEALS NON-STOP"; below: "BLACK FRIDAY MEGA SALE" in cream brush caps; a yellow slab with "Annual Blowout, On Now"; offers line "Flash Deals | Cross-Store Coupons | Stackable Savings"; footer columns "Select Items From 50% Off", a bordered box "Nov 24 - Dec 1" labelled "Sale Dates", and "Limited-Time, Buy Non-Stop" in yellow. [Mood] Carnival-loud and colorful; four ribbon banners jamming the whole promo into one glowing red frame.