body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #222;
    color: white;
}

.container {
    text-align: center;
}

input {
    background-color: #444;
    color: white;
    border: 1px solid #666;
    padding: 5px;
    margin: 5px;
    width: 100px;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    margin: 10px;
}

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

canvas {
    border: 1px solid #666;
}