.options-group {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.checkbox-grid {
    background-color: #f8fafc;
    border-color: #e2e8f0 !important;
}