@keyframes sparkPulse {
    0%, 100% {
        transform: scale(1);
        filter:
                drop-shadow(0 0 8px rgba(59, 130, 246, 0.7))
                drop-shadow(0 0 16px rgba(59, 130, 246, 0.5));
    }

    50% {
        transform: scale(1.15);
        filter:
                drop-shadow(0 0 16px rgba(59, 130, 246, 1))
                drop-shadow(0 0 32px rgba(59, 130, 246, 0.8))
                drop-shadow(0 0 48px rgba(250, 204, 21, 0.6));
    }
}

.spark-animation {
    animation: sparkPulse 3s ease-in-out infinite;
    transform-origin: center;
    will-change: transform, filter;
}