body {
    /* font-family: Arial, sans-serif; */
    font-size: 1.1rem;
    line-height: 1.3;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 5 5 0 0;
}

.container {
    width: 90%;
    max-width: 1000px;
    border: 1px solid black;
    padding: 20px;
    box-sizing: border-box;
}

.row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
}

.column {
    flex: 1 1 45%;
    min-width: 300px;
}

.canvas {
    width: 100%;
}

.canvas img {
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    display: block;
    margin: 10px 0;

    background: white; /* White background for transparency */
}

.center {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    width: 100%;
}

.slider {
    display: flex;
    justify-content: center;
    margin-top: 10px;
    margin-bottom: 40px;
    width: 100%;
}

label.button {
    background: black;
    color: white;

    line-height: 1.2;

    padding: 15px 30px;

    cursor: pointer;
    user-select: none;

    display: inline-block;

    margin: 10px 0;
}

#userImage {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    border: 0;
}