body {
    font-family: Arial, sans-serif;
    margin: 0;
}

/* Fixed control panel */
#controls {
    position: fixed;
    left: 0;
    top: 0;
    width: 200px;
    height: 100vh;
    background-color: #f0f0f0;
    padding: 15px;
    box-sizing: border-box;
}

#controls label {
    display: block;
    margin-top: 15px;
    font-weight: bold;
}

#controls input {
    width: 100%;
}

/* Content area */
#content {
    margin-left: 220px;
    padding: 20px;
    background-color: white;
    color: black;
    font-size: 20px;
    min-height: 100vh;
}