Spooky Halloween Livestream Event Poster

Halloween livestream poster, vertical 9:16, dark frame-and-stage layout. [Colors] near-black #120C1C to violet #40285E, pumpkin orange #F08A24, mint-white ghost #F2F6F4, lavender drips #8C6BB1. [Layout] a liquid-drip border framing a large empty white content stage; title top center with a moon disc at the right; two coupon cards stacked mid-right; a program schedule panel lower right; a bottom benefit row of four badges. [Typography] ornate gothic display with a gold bevel for the headline, ribbon subtitle, compact sans for coupon terms and times. [Subject] a chibi witch with a glowing crystal staff sitting on a pumpkin at bottom left, a black cat beside her, a floating ghost at top right, a full moon containing a witch silhouette, bats, haunted house rooftops, candles. [Lighting & Mood] mysterious stage-lit night, purple haze. [Details] dripping ink edges, gold ribbon banner, coupon labels with discount thresholds, a four-slot program list with clock times, footer icon strip.