body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #2c3e50;
    color: #ecf0f1;
    font-family: Arial, sans-serif;
}

#game-container {
    text-align: center;
    width: 80%;
    max-width: 600px;
}

#game-output {
    margin-bottom: 20px;
    min-height: 200px;
}

#game-input {
    display: flex;
    justify-content: center;
}

#user-input {
    flex: 1;
    padding: 10px;
    font-size: 16px;
}

button {
    padding: 10px;
    font-size: 16px;
    margin-left: 10px;
    cursor: pointer;
}