.crt-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;pointer-events:none;z-index:9999;background:linear-gradient(#12101000 50%,#00000040 50%);background-size:100% 4px;animation:scanlines 10s linear infinite;box-shadow:inset 0 0 100px #000000e6}@keyframes scanlines{0%{background-position:0 0}to{background-position:0 100%}}.crt-flicker{opacity:.15;position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;background:#fff;animation:flicker .15s infinite}@keyframes flicker{0%{opacity:.02}50%{opacity:.05}to{opacity:.02}}