.card {
    display: block;
    /* width: 24%; */
    margin-right: 0.25%;
    margin-left: 0.25%;
    height: 80vh;
    cursor: pointer;
    overflow: none;
    background-color: var(--kuro);
    flex: 1 1 1px;
}

.card embed {
    margin: 5px;
    padding: 0;
    height: calc(80vh - 10px);
    width: calc(100% - 10px);
}

.card-columns {
    display: flex;
    flex-wrap: wrap;
    flex-direction: row-reverse;
}


/* .card:hover, */

.card:focus,
.card:focus-within,
.card:has(embed:focus),
.card:has(embed:hover),
.card:has(embed:focus-within) {
    overflow: auto;
    transition: ease-in 0.3s;
    flex: 1 0 90%;
}