#output {
    border: 1px solid #ddd;
    max-width: 413px;
    max-height: 531px;
    display: block;
}
.controls {
    margin-top: 10px;
}
button {
    margin: 5px;
}
.controls, #downloadButton, #toggleButton, #cardCanvas {
    display: none;
}
#cardContainer {
    position: relative;
}
#cardCanvas {
    max-width: 100%;
    height: auto;
}
#canvasPreviewContainer {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-top: 20px;
}
#cardContainer, #output {
    flex-shrink: 0;
}
#previewHeading {
    margin-bottom: 10px;
}