.at-container-126278 {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.at-tabs-column {
    flex: 0 0 350px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.at-content-column {
    flex: 1;
    min-height: 400px;
}

.at-tab-item {
    position: relative;
    padding: 20px 25px;
    background: #F8F9FA;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    outline: none; /* Provide custom focus state if needed, or rely on browser default but adjust for aesthetics */
}

.at-tab-item:focus-visible {
    box-shadow: 0 0 0 2px rgba(4, 104, 211, 0.5);
}

.at-tab-item.active {
    background: #E3F2FD;
    border-color: rgba(4, 104, 211, 0.1);
}

.at-tab-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20px;
    bottom: 20px;
    width: 4px;
    background: transparent;
    border-radius: 0 4px 4px 0;
    transition: background 0.3s ease;
}

.at-tab-item.active::before {
    background: #0468D3;
}

.at-tab-number {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: #94A3B8;
    margin-bottom: 5px;
    display: block;
}

.at-tab-title {
    font-size: 18px;
    font-weight: 700;
    color: #012751;
    margin: 0;
}

.at-tab-desc-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s ease-out;
}

.at-tab-item.active .at-tab-desc-wrapper {
    grid-template-rows: 1fr;
}

.at-tab-desc {
    font-size: 14px;
    color: #597798;
    margin: 0;
    padding-top: 10px; /* Adjust padding instead of margin to prevent layout jumps inside grid wrapper */
    overflow: hidden;
    line-height: 1.5;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0.3s, opacity 0.3s;
}

.at-tab-item.active .at-tab-desc {
    visibility: visible;
    opacity: 1;
}

.at-content-pane {
    display: none;
    animation: fadeIn 0.4s ease;
}

.at-content-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@media (max-width: 767px) {
    .at-container-126278 { flex-direction: column; }
    .at-tabs-column { flex: 1; width: 100%; }
}