:root{--bg:#111111;--red:#b23535}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg)}
body{min-height:100vh;min-height:100dvh;overflow:hidden;display:grid;place-items:center}
#noise{position:fixed;inset:0;width:100%;height:100%;opacity:.13;mix-blend-mode:screen;pointer-events:none}
body::after{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(ellipse at center,transparent 35%,rgba(0,0,0,.65) 100%)}
main{position:relative;z-index:2;width:min(78vw,900px)}
svg{display:block;width:100%;height:auto;fill:var(--red);filter:drop-shadow(0 0 18px rgba(178,53,53,.35));animation:flick 7s infinite steps(1)}
@keyframes flick{0%,100%{opacity:1}92%{opacity:1}93%{opacity:.55}94%{opacity:1}96%{opacity:.75}97%{opacity:1}}
@media (prefers-reduced-motion:reduce){svg{animation:none}}