body {
    font-family: sans-serif;
    background-color: #f0f2f5;
    color: #333;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 800px;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1, h2, h3 {
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

input[type="file"], textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
}

button:hover {
    background-color: #0056b3;
}

#result-area {
    margin-top: 30px;
}

.image-container {
    display: flex;
    justify-content: space-around;
    gap: 20px;
    margin-top: 20px;
}

.image-wrapper {
    width: 45%;
    text-align: center;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    border: 1px solid #ddd;
}

#loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column; /* 子要素を縦に並べる */
    justify-content: center;
    align-items: center;
    z-index: 1000;
    color: white;
    font-size: 1.5em;
}

/* スピナー本体のスタイル */
.spinner {
    border: 8px solid #f3f3f3; /* Light grey */
    border-top: 8px solid #3498db; /* Blue */
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1.5s linear infinite;
    margin-bottom: 20px; /* テキストとの間隔 */
}

/* 回転アニメーション */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}