.vocabulary .accordion-item > h3 {
    margin: 0;
    font-size: 16px;
}

.vocabulary .accordion-button {
    min-height: 56px;
    padding-block: 0;
}

.vocabulary .accordion-chevron {
    width: 8px;
    height: 8px;
    flex: 0 0 8px;
    border-right: 2px solid var(--soft);
    border-bottom: 2px solid var(--soft);
    transform: rotate(45deg);
    transition: transform .2s ease;
}

.vocabulary .accordion-button[aria-expanded="true"] .accordion-chevron {
    transform: rotate(225deg);
}

.model-image {
    display: grid;
    width: 200px;
    place-items: center;
}

.model-image img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 240px;
    object-fit: contain;
}

/* This portrait diagram is intended to run nearly the full height of its card. */
.model-image--yang-yin {
    padding-block: 4px;
}

.model-image--yang-yin img {
    width: auto;
    max-height: 252px;
}

@media (max-width: 720px) {
    .model-image {
        width: 100%;
    }

    .model-image img {
        width: auto;
        max-width: 100%;
        max-height: 220px;
    }

    .model-image--yang-yin img {
        max-height: 232px;
    }
}