.letters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px;
    margin-top: 32px;
}

.letters__button {
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    font-family: var(--fs);
    font-size: 13px;
    font-weight: 600;
    color: var(--charcoal);
    cursor: pointer;
    transition: border-color .15s, background .15s, color .15s;
}

.letters__button:hover:not(:disabled) {
    border-color: var(--teal);
    color: var(--teal-deep);
}

.letters__button:disabled {
    background: var(--canvas);
    color: var(--line-2);
    cursor: default;
}

.letters__button--active,
.letters__button--active:hover:not(:disabled) {
    border-color: var(--teal);
    background: var(--teal);
    color: #fff;
}

.glossary {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.glossary__letter {
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
    font-family: var(--fd);
    font-weight: 400;
    font-size: 26px;
    letter-spacing: -.01em;
    color: var(--teal);
}

.glossary__terms {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    align-items: start;
}

.term {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--r);
    background: #fff;
    box-shadow: var(--sh-sm);
    transition: border-color .2s, box-shadow .2s;
}

.term:hover {
    border-color: var(--line-2);
    box-shadow: var(--sh);
}

.term--open,
.term--open:hover {
    border-color: var(--teal-mist);
}

.term--flash {
    animation: term-flash 1.4s var(--ease);
}

@keyframes term-flash {
    from {
        box-shadow: 0 0 0 0 rgba(23, 176, 163, .45);
    }

    to {
        box-shadow: 0 0 0 16px rgba(23, 176, 163, 0);
    }
}

.term__head {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    width: 100%;
    padding: 20px 24px;
    border: 0;
    background: none;
    font-family: var(--fs);
    text-align: left;
    cursor: pointer;
}

.term__main {
    flex: 1;
    min-width: 0;
}

.term__name {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.term__word {
    font-family: var(--fd);
    font-size: 19px;
    letter-spacing: -.01em;
    color: var(--ink);
}

.term__short {
    display: block;
    margin-top: 8px;
    font-size: 14.5px;
    line-height: 1.5;
    color: var(--stone);
}

.term__body {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
}

.term__inner {
    padding: 0 24px 24px 56px;
}

.term__long {
    font-size: 15px;
    line-height: 1.65;
    color: var(--charcoal);
}

.term__where {
    margin-top: 16px;
    padding: 12px 16px;
    border: 1px solid var(--teal-mist);
    border-radius: 10px;
    background: var(--teal-frost);
    font-size: 13.5px;
    line-height: 1.5;
    color: var(--teal-deep);
}

.term__where-label {
    font-weight: 700;
}

.term__related {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}

.term__related-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--stone-light);
}

.term__related-button {
    padding: 4px 12px;
    border: 1px solid var(--teal-mist);
    border-radius: 999px;
    background: #fff;
    font-family: var(--fs);
    font-size: 13px;
    font-weight: 600;
    color: var(--teal);
    cursor: pointer;
    transition: background .15s;
}

.term__related-button:hover {
    background: var(--teal-frost);
}

@media (max-width: 900px) {
    .glossary__terms {
        grid-template-columns: 1fr;
    }

    .term__inner {
        padding-left: 24px;
    }
}