@keyframes reference-pulse {
    0% {
        opacity: var(--opacity-low);
    }

    100% {
        opacity: var(--opacity-high);
    }
}

@keyframes reference-drain {
    0% {
        stroke-dashoffset: 0;
    }

    100% {
        stroke-dashoffset: 100;
    }
}

@keyframes reference-bop {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: var(--transform-nudge-right);
    }
}