body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.container {
    width: 90%;
    margin: auto;
    overflow: hidden;
}

header {
    background: #333;
    color: #fff;
    padding: 20px 40px 50px;
    margin-bottom: 20px;
}

header h1 {
    float: left;
    margin: 0;
    padding-left: 10px;
}

header nav {
    float: right;
    margin-top: 10px;
}

header nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

header nav ul li {
    display: inline;
    margin-right: 20px;
    color: #fff;
    cursor: pointer;
}

.dashboard {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.status-box {
    background: #fff;
    padding: 20px;
    width: 24%;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.status-box h2 {
    margin: 0;
    font-size: 2.5em;
}

.status-box p {
    margin: 10px 0;
    font-size: 1.2em;
}

.waiting-authorization {
    background-color: #e3f2fd;
    color: #1565c0;
}

.online {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.offline {
    background-color: #fbe9e7;
    color: #d84315;
}

.low-signals {
    background-color: #fff3e0;
    color: #ff9800;
}

.network-status,
.olt-status {
    background: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

footer {
    text-align: center;
    padding: 10px;
    background: #333;
    color: #fff;
}


table {
    width: 100%;
    border-collapse: collapse;
}
table, th, td {
    border: 1px solid black;
}
th, td {
    padding: 8px;
    text-align: left;
}
th {
    background-color: #f2f2f2;
}