body {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background-color: #f0f0f0;
            font-family: 'Roboto', sans-serif;
        }
        .card-manutenzione {
            width: 400px;
            padding: 20px;
            background-color: #fff;
            border-radius: 15px;
            box-shadow: 0 5px 5px -3px rgba(0, 0, 0, 0.2),
                        0 8px 10px 1px rgba(0, 0, 0, 0.14),
                        0 3px 14px 2px rgba(0, 0, 0, 0.12) !important;
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 20px;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        .text-h4 {
            font-size: 2.125rem;
            font-weight: 400;
            line-height: 1.175;
            letter-spacing: 0.0073529412em;
            color: #4E89C8;
            margin-top: 10px;
        }
        .icon {
            width: 4em;
            height: 4em;
            fill: #4E89C8;
        }