@media (max-width: 768px) {
    .header h1 {
        font-size: 32px;
    }
    
    .header .subtitle {
        font-size: 16px;
        text-align: center;
    }
    
    .card {
        font-size: 16px;
        padding: 24px;
    }
    
    .card-header {
        font-size: 16px;
        margin-bottom: 24px;
    }

    .code-grid {
        flex-direction: column;
    }

    .code-card {
        width: 100%;
    }
    
    .form-group textarea {
        min-height: 100px;
        padding: 12px;
    }

    .form-group .generate-btn {
        padding: 12px;
        font-size: 16px;
    }
}