.single-case-study__chapters-list {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 14px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.single-case-study__chapters-list-item a {
    text-decoration: none;
    color: rgba(1, 13, 28, 0.50)!important;
}

.single-case-study__chapters-list-item--active a {
    color: #010D1C !important;
    font-weight: 400;
}

.single-case-study__chapters-list-item {
    display: flex;
    gap: 12px;
}

.single-case-study__chapters-list-item-diagonal {
    width: 0;
    visibility: hidden;
}

.single-case-study__chapters-list-item--active .single-case-study__chapters-list-item-diagonal {
    width: auto;
    visibility: visible;
}

@media (max-width: 768px) {
    .single-case-study__chapters-list {
        display: none;
    }
}