body {
font-family: Arial;
background: #0f172a;
color: white;
padding: 20px;
}

.cards {
display: flex;
gap: 20px;
}

.card {
background: #1e293b;
padding: 20px;
border-radius: 10px;
width: 150px;
text-align: center;
}

canvas {
margin-top: 30px;
background: white;
border-radius: 10px;
}