body
{
    font-family: Arial, sans-serif;
    background: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.game-container
{
    background: white;
    padding: 30px;
    border-radius: 10px;
    width: 350px;
    text-align: center;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
}

h1
{
    margin-bottom: 20px;
}

input, select, button
{
    width: 90%;
    padding: 10px;
    margin: 10px 0;
    font-size: 16px;
}

button
{
    background: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover
{
    background: #0056b3;
}

.hidden
{
    display: none;
}

#message
{
    font-size: 18px;
    font-weight: bold;
    margin-top: 15px;
}