.card {
    padding: 20px;
    border-radius: 8px;
    margin: 2% 4% 4%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
}

.pdf-box {
    width: 100%;
    height: calc(100vh - 64px);
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f5f5f5;
    overflow: auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Ensure the iframe (or embedded PDF) scales well for mobile */
iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Optional: styling for mobile responsiveness */
@media (max-width: 768px) {
    .container {
        margin-top: 2%;
    }

    .pdf-box {
        height: calc(100vh - 48px);
    }
}

/* Fallback Styling */
.fallback-message {
    font-size: 16px;
    text-align: center;
    color: #ff6f61;
    margin-top: 20px;
}