/* Subtle scanlines + flicker */
body:before{content:"";pointer-events:none;position:fixed;inset:0;opacity:.06;background:repeating-linear-gradient(180deg,rgba(255,255,255,.15),rgba(255,255,255,.15) 1px,transparent 1px,transparent 3px);mix-blend-mode:overlay}
body:after{content:"";pointer-events:none;position:fixed;inset:0;background:linear-gradient(0deg,transparent 0%,rgba(0,0,0,.08) 50%,transparent 100%);animation:crt-flicker 7s infinite linear;opacity:.25}
@keyframes crt-flicker{0%{opacity:.24} 50%{opacity:.32} 100%{opacity:.24}}