body {
    font-family: Arial, sans-serif;
    background-color: #f3f4f6;
    color: #333;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    padding: 20px;
}

.image-viewer {
    background-color: #fff5e6;
    border-radius: 8px;
    padding: 20px;
    margin-right: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.image-viewer img {
    max-width: 400px;
    max-height: 400px;
    display: block;
    margin-bottom: 10px;
}

.image-list {
    background-color: #e6f7ff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.image-list ul {
    list-style-type: none;
    padding: 0;
}

.image-list li {
    margin: 5px 0;
    padding: 5px;
    cursor: pointer;
    background-color: #fff;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.image-list li:hover {
    background-color: #cceeff;
}

button {
    background-color: #82b1ff;
    border: none;
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

button:hover {
    background-color: #6699ff;
}