body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
}

#simulation-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.page {
    display: none;
}

.page.active {
    display: block;
}

button {
    background-color: #00704A;
    color: #fff;
    border: none;
    padding: 10px 20px;
    margin-top: 20px;
    cursor: pointer;
}

button:hover {
    background-color: #00563A;
}