/* Badge-like footnote superscripts */
sup {
    font-size: 0.65em;
    line-height: 1;
    vertical-align: super;
    margin-left: 0.15rem;
}

sup a {
    display: inline-block;
    min-width: 1.2em;
    padding: 0.15em 0.45em;
    text-align: center;

    font-weight: 600;
    font-size: 1em;
    text-decoration: none;

    color: var(--bs-white);
    background-color: var(--bs-dark);
    border-radius: 0.6rem;

    transition: background-color .15s ease, box-shadow .15s ease, transform .1s ease;
}

sup a:hover {
    background-color: var(--bs-dark-text-emphasis);
    color: var(--bs-white);
}

.custom-datetime {
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum";
    white-space: nowrap;
}

.jump {
    display: inline-block;
    animation: jump 1s infinite;
}

@keyframes jump {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}