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

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
}

header h1 {
    margin: 0;
}

button {
    padding: 10px 15px;
    border: none;
    background-color: #007BFF;
    color: #fff;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

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

button:disabled {
    background-color: #c0c0c0;
    cursor: not-allowed;
}

#pools-section {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    background-color: #fff;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}