body {
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #2c3e50;
    font-family: Arial, sans-serif;
}

canvas {
    border: 3px solid #34495e;
    background: #87ceeb;
    display: block;
}

.controls {
    width: 500px;
    margin-top: 20px;
    color: white;
}

.controls h2, .controls h3 {
    margin: 10px 0;
}

.controls table {
    width: 100%;
    color: white;
    border-collapse: collapse;
    border: 1px solid gray;
}

.controls table td {
    padding: 10px 15px;
    text-align: left;
    border: 1px solid gray;
}

.controls table td:first-child {
    font-weight: bold;
    width: 36%;
}