* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background: #f5f7fb;
    color: #333;
    padding: 30px;
}

.container {
    max-width: 1200px;
    margin: auto;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
    gap: 20px;
}

h1 {
    color: #1f4e79;
    margin-bottom: 15px;
}

.info h4 {
    margin: 8px 0;
    font-weight: normal;
}

#status {
    margin-top: 10px;
    color: #1f4e79;
    font-weight: bold;
}

.card {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 18px;
    width: 300px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.card h3 {
    margin-bottom: 15px;
    color: #1f4e79;
}

input {
    width: 100%;
    padding: 10px;
    border: 1px solid #bbb;
    border-radius: 5px;
    margin-bottom: 10px;
    font-size: 14px;
}

input:focus {
    outline: none;
    border-color: #1f4e79;
}

button {
    width: 100%;
    padding: 10px;
    border: none;
    background: #1f4e79;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: 0.2s;
}

button:hover {
    background: #163a5b;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

thead {
    background: #1f4e79;
    color: white;
}

th,
td {
    padding: 12px;
    border: 1px solid #ddd;
    text-align: center;
}

tbody tr:nth-child(even) {
    background: #f8f8f8;
}

tbody tr:hover {
    background: #eef5ff;
}

#websocket_status {
    font-weight: bold;
}

.up {
    color: #1b8f3a;
    font-weight: bold;
}

.down {
    color: #d32f2f;
    font-weight: bold;
}

@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .header {
        flex-direction: column;
    }

    .card {
        width: 100%;
    }

    table {
        display: block;
        overflow-x: auto;
    }
}