.woo-invoice-status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 12px;
    margin: 2px;
}
.woo-invoice-status-badge.paid {
    background: #d4edda;
    color: #155724;
}
.woo-invoice-status-badge.unpaid {
    background: #f8d7da;
    color: #721c24;
}
.woo-invoice-status-badge.due {
    background: #fff3cd;
    color: #856404;
}