body {
    font-family: 'Poppins', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f5f5f5;
}

.controller {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    text-align: center;
}

.control-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
}

button {
    width: 50px;
    height: 50px;
    font-size: 24px;
    border: none;
    border-radius: 25px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

#value {
    font-size: 24px;
    margin: 0 20px;
    min-width: 100px;
    display: inline-block;
}

.connection-status {
    margin-top: 20px;
    font-size: 14px;
    color: #666;
}

#statusIndicator {
    margin-right: 5px;
}

.connected #statusIndicator {
    color: #28a745;
}

.disconnected #statusIndicator {
    color: #dc3545;
}