.ai-roi-calculator {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.ai-roi-calculator input:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.ai-roi-calculator .gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .ai-roi-calculator .grid {
        grid-template-columns: 1fr;
    }
}