.donate-glow {
    animation: donatePulse 5s ease-in-out infinite;
    will-change: transform, box-shadow;
}

@keyframes donatePulse {
    /* Idle state (no glow) */
    0%, 70%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 currentColor;
    }

    /* Pulse peak */
    40% {
        transform: scale(1.06);
        box-shadow: 0 0 22px currentColor;
    }
}