body {
    font-family: sans-serif;
    padding: 10px;
    background-color: #f0f0f0;
}

#start-btn {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
}

#start-btn:disabled {
    background-color: #777;
    cursor: not-allowed;
}

#status-log {
    margin-top: 15px;
    padding: 8px;
    border: 1px solid #ccc;
    background-color: #fff;
    height: 300px;
    overflow-y: auto;
    font-size: 12px;
    line-height: 1.5;
}