body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #222;
    color: #fff;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    font-size: 14px;
}

canvas {
    border: 2px solid #fff;
    margin-bottom: 20px;
}

.description {
    max-width: 400px;
    background: #333;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.description h2 {
    margin-top: 0;
    color: #fff;
    font-size: 20px;
}

.description ul {
    margin: 0;
    padding-left: 20px;
    line-height: 1.5;
}

.description li {
    margin-bottom: 8px;
}

.description .note {
    text-align: right;
    font-size: 12px;
    color: #aaa;
}

.purple {
    color: #f0f;
    font-weight: bold;
}