canvas{z-index:-1;filter:blur(2px)brightness(.7);background:#000;width:100%;height:100%;position:fixed;top:0;left:0}@media (max-width:768px){canvas{filter:blur(1.5px)brightness(1.5)}}.matrix-grid:after{content:"";opacity:0;pointer-events:none;mix-blend-mode:color;z-index:-1;background:#ef4444;position:fixed;inset:0}.matrix-grid-error:after{animation:2s ease-in-out matrix-grid-error-pulse}.matrix-grid-timeout:after{opacity:1;background:#f59e0b}@keyframes matrix-grid-error-pulse{0%{opacity:0}50%{opacity:1}to{opacity:0}}