body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f5f7fa;
    color: #333;
}

header {
    background: #2c3e50;
    color: white;
    padding: 15px;
}

header h1 {
    margin: 0;
}

nav a {
    color: #ecf0f1;
    margin-right: 15px;
    text-decoration: none;
}

main {
    padding: 20px;
}

.card {
    background: white;
    padding: 15px;
    margin-top: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.status.ok {
    color: green;
    font-weight: bold;
}

pre {
    background: #1e1e1e;
    color: #00ff9c;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}

footer {
    text-align: center;
    padding: 15px;
    background: #ecf0f1;
    margin-top: 20px;
}