body {
    margin: 0;
    padding: 0;

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    background: #f4f6f9;
    color: #222;
}

.container {
    width: 95%;
    max-width: 1400px;

    margin: 30px auto;
}

h1 {
    margin-bottom: 30px;
}

h2 {
    margin-top: 40px;
}

.cards {
    display: flex;
    gap: 20px;

    margin-bottom: 30px;
}

.card {
    background: white;

    padding: 25px;

    border-radius: 10px;

    box-shadow:
        0 2px 10px rgba(0,0,0,.08);

    min-width: 180px;
}

.card h3 {
    margin-top: 0;

    color: #666;
}

.card strong {
    font-size: 30px;
}

table {
    width: 100%;

    border-collapse: collapse;

    background: white;
}

th,
td {
    padding: 12px;

    border-bottom:
        1px solid #ddd;

    text-align: left;
}

th {
    background: #222;
    color: white;
}

.online {
    color: green;
    font-weight: bold;
}

.offline {
    color: red;
    font-weight: bold;
}