body {
    background-color: #f8f9fa;
}

.main-header {
    background-color: #ffffff;
    border-bottom: 1px solid #dee2e6;
}

.alpha-badge {
    font-size: 0.8rem;
    font-weight: 700;
}

.tab-content {
    border: 1px solid #dee2e6;
    border-top: none;
    background-color: #ffffff;
}