粗颗粒半色调复古电子音乐节海报

experimental electronic music rave poster, color palette: black, neon purple, magenta, acid lime yellow. Heavy gritty print texture: full coverage film grain, worn paper scuffs, scan noise, silkscreen misprint effect, underground punk zine & basement club aesthetic. Top 3 evenly spaced small horizontal text: ECHO UNIT, NOVA WAVE, DJ CIRCUIT Two lines of oversized bold neon purple headline below: SIGNAL FEVER Small aligned text under the headline: left "Enter the ritual of electric sound", right "A night where rhythm controls your pulse" Central element: half-body side profile shot of young vocalist singing with head tilted back holding mic, high-contrast halftone processing, misaligned offset color overlay of magenta, purple, acid lime on skin and clothes, enclosed in a thin neon purple rectangular frame Bottom section: giant bold date on left: 06/27, vertical aligned year on right: 2026, middle event info: "Doors Open 8PM / Terminal 19, Neon District", followed by outlined action button "Tickets & Details" next to contact line: "www.signalfever.live / +123 888 2026" Bottom edge decorated with thin sound wave lines, glitch oval icons, minor distorted error details. All text 100% legible, prioritize eye-catching oversized headline, highlighter pop of the color-offset vocalist, clear modular event info, heavy retro silkscreen grain across the whole frame