body {
    font-family: sans-serif;
    padding: 20px;
    background: #f0f0f0;
}

h1 {
    color: #333;
}

#output {
    background: white;
    padding: 1em;
    border-radius: 8px;
    min-height: 30px;
    margin-top: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    white-space: pre-wrap;
}

#status {
    color: green;
    font-weight: bold;
}

#imagebox {
    text-align: center;
    margin-top: 20px;
    margin: 20px auto;
    padding: 20px;
    min-height: 150px;
    min-width: 150px;
    background-color: rgb(242, 246, 250);
}

#imagebox img {
    max-width: 200%;
    margin-top: 1em;
    margin-right: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    opacity: 0;
    /*animation: fadeInImage 0.8s ease forwards;*/
}

@keyframes fadeInImage {
    from {
        opacity: 0;
        transform: scale(50);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeOutImage {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

/* フェードイン: 0.3秒遅延 → 0.6秒再生 */
.fade-in {
    animation: fadeInImage 0.6s ease-out 0.3s forwards;
    transform-origin: center center;
}

/* フェードアウト: 3秒遅延後に0.5秒再生（JSで制御） */
.fade-out {
    animation: fadeOutImage 0.5s ease-in-out forwards;
}