body {
    font-family: sans-serif;
    background: #f5f5f5;
    margin: 0;
    padding: 1rem;
}

.frame-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 100%;
}

/* Responsive: single column on narrow screens */
@media (max-width: 768px) {
    .frame-container {
        grid-template-columns: 1fr;
    }
}

iframe {
    width: 100%;
    height: 90vh;
    border: 1px solid #ccc;
    border-radius: 8px;
}