body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f0f0f0;
}
h1, h2 {
    color: #333;
}
form {
    margin-bottom: 20px;
}
label {
    display: inline-block;
    width: 150px;
}
input {
    margin: 5px 0;
}
canvas {
    border: 1px solid #000;
    background-color: #fff;
}
#decision {
    font-weight: bold;
}