.gauge-container {
            background: #ffffff;
            border-radius: 1rem;
            padding: 0.8rem;
            text-align: center;
            margin-top: 1rem;
        }
        canvas#voltGauge {
            width: 100%;
            max-width: 320px;
            height: auto;
            background: #fef9e6;
            border-radius: 20px;
            display: block;
            margin: 0 auto;
        }
        .badge-custom {
            background: #e9ecef;
            padding: 0.3rem 0.6rem;
            border-radius: 1rem;
            font-size: 0.8rem;
        }
        .footer a {
            color: #cbd5e1;
        }
        .legend {
            font-size: 0.8rem;
            margin-top: 0.5rem;
            text-align: center;
        }
        @media (max-width: 768px) {
            }