.orb{background:radial-gradient(circle,#8438ff,#4a16bd);box-shadow:0 0 30px #8438ffcc,0 0 80px #8438ff66}@keyframes pulseGlow{0%,to{filter:drop-shadow(0 0 4px #fff)drop-shadow(0 0 12px #fff)}50%{filter:drop-shadow(0 0 8px #fff)drop-shadow(0 0 24px #fff)}}.sigma-logo-pulse{animation:3s ease-in-out infinite pulseGlow}.grid-bg{pointer-events:none;background-image:linear-gradient(#ffffff40 1px,#0000 1px),linear-gradient(90deg,#ffffff40 1px,#0000 1px);background-size:80px 100px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#0000,#fff 20% 80%,#0000);mask-image:linear-gradient(#0000,#fff 20% 80%,#0000)}