/* styles.css */
body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
}

.card {
    border: none;
    border-radius: 10px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: bold;
}

#signal {
    color: #fff;
}

canvas {
    max-height: 300px;
}