@media (max-width: 768px) {
    .header h1{
        font-size: 32px;
    }

    .header .subtitle {
        font-size: 16px;
    }

    .card-header{
        font-size: 16px;
    }

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

    .code-card{
        width: 100%;
    }
}