@keyframes btn-glow-pulse{0%,100%{filter:brightness(1);box-shadow:0 0 0px 0px rgba(34,197,94,0)}50%{filter:brightness(1.9);box-shadow:0 0 18px 7px rgba(34,197,94,0.5)}}.btn-attention-glow{animation:btn-glow-pulse 2.4s ease-in-out infinite}