body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}

.container {
    text-align: center;
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    margin-bottom: 1rem;
}

#imageContainer {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

#originalImage, #coloringImage {
    max-width: 300px;
    max-height: 300px;
    object-fit: contain;
}

#downloadBtn {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#downloadBtn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}