.lb2 {
    padding: 30px 0;
}

.lb2 [hidden] {
    display: none !important;
}

.lb2-text {
    margin-bottom: 20px;
}

.lb2-tabs-list {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin: 0 0 15px;
    padding-left: 0;
    list-style: none;
    overflow-x: auto;
    white-space: nowrap;
    border-bottom: 1px solid #c2d3df;
}

.lb2-tabs-list::-webkit-scrollbar {
    width: 1px;
    height: 1px;
    background-color: #f5f5f5;
}

.lb2-tabs-list::-webkit-scrollbar-thumb {
    background-color: #e9e9e9;
    border-radius: 50px;
}

.lb2-tab-btn {
    display: flex;
    align-items: center;
    margin: 0 10px 0 0;
    padding-bottom: 10px;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.21;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.lb2-tab-btn:not(:last-child)::after {
    content: "";
    display: block;
    width: 1px;
    height: 18px;
    margin-left: 10px;
    margin-bottom: 10px;
    background-color: #c2d3df;
}

.lb2-tab-btn:hover,
.lb2-tab-btn.is-active {
    color: #00b9dc;
}

.lb2-tab-btn.is-active {
    border-bottom-color: #00b9dc;
}

.lb2-links {
    margin: 0;
    padding-left: 0;
    list-style: none;
    column-count: 4;
    line-height: 1.21;
}

.lb2-links--3 {
    column-count: 3;
}

.lb2-links li {
    max-width: 270px;
    margin-bottom: 15px;
    padding-right: 15px;
    break-inside: avoid;
}

.lb2-links a {
    display: inline-block;
    color: inherit;
    text-decoration: none;
    border-bottom: none;
}

.lb2-links a:hover {
    color: #00b9dc;
}

.lb2-groups {
    display: flex;
}

.lb2-groups-select {
    display: none;
}

.lb2-groups-list {
    flex-shrink: 0;
    min-width: 220px;
    max-width: 300px;
    max-height: 320px;
    margin: 0;
    padding: 0 15px 0 0;
    list-style: none;
    overflow-y: auto;
    border-right: 1px solid #c2d3df;
}

.lb2-groups-list::-webkit-scrollbar {
    width: 4px;
    background-color: #f5f5f5;
}

.lb2-groups-list::-webkit-scrollbar-thumb {
    background-color: #c2d3df;
    border-radius: 50px;
}

.lb2-group-btn {
    display: block;
    margin-bottom: 12px;
    padding-left: 10px;
    cursor: pointer;
    line-height: 1.21;
    border-left: 2px solid transparent;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.lb2-group-btn:hover,
.lb2-group-btn.is-active {
    color: #00b9dc;
}

.lb2-group-btn.is-active {
    border-left-color: #00b9dc;
}

.lb2-group-panel {
    flex: 1;
    min-width: 0;
    padding-left: 15px;
}

@media (max-width: 768px) {
    .lb2-tab-btn {
        font-size: 16px;
    }

    .lb2-groups {
        display: block;
    }

    .lb2-groups-list {
        display: none;
    }

    .lb2-groups-select {
        display: block;
        box-sizing: border-box;
        width: 100%;
        max-width: 100%;
        margin-bottom: 15px;
        padding: 8px;
        border: 1px solid #c2d3df;
        border-radius: 4px;
    }

    .lb2-group-panel {
        padding-left: 0;
    }

    .lb2-links,
    .lb2-links--3,
    .lb2-links--4 {
        column-count: 1;
    }

    .lb2-links li {
        max-width: none;
    }
}