.code-textarea {
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    line-height: 1.5;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    padding: 15px;
    resize: vertical;
}

.code-textarea:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.validation-error {
    background-color: #fef2f2 !important;
    color: #991b1b !important;
    border-left: 4px solid #ef4444 !important;
}

.validation-success {
    background-color: #f0fdf4 !important;
    color: #166534 !important;
    border-left: 4px solid #22c55e !important;
}

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