body {
    background: aliceblue;
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

#container {
    max-width: 900px;
    margin: 0 auto;
    padding: 10px 20px;
    text-align: center;
}

h2 {
    margin: 5px 0 8px;
    color: #3F51B5;
    font-size: 1.3rem;
}

#controls {
    margin-bottom: 10px;
}

#controls label {
    font-weight: bold;
    margin-right: 4px;
}

#controls select {
    padding: 4px 8px;
    font-size: 0.95rem;
    border: 1px solid #aaa;
    border-radius: 4px;
}

canvas {
    width: 100% !important;
    max-height: 380px;
}

#final-text {
    font-size: 1.1rem;
    font-weight: bold;
    color: #C62828;
    margin-top: 6px;
}