body {
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    max-width: 800px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

.status-indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 10px;
}

.status-connected {
    background-color: #28a745;
}

.status-disconnected {
    background-color: #dc3545;
}

.speed-value {
    font-size: 2em;
    font-weight: bold;
    text-align: center;
    margin: 20px 0;
}

.function-btn {
    margin: 5px;
}

.direction-indicator {
    font-size: 1.2em;
    margin-left: 10px;
}