body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    background-color: #1a1a1a;
    color: #e0e0e0;
    margin: 0;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 20px;
}

.header h1 {
    margin: 0;
    font-size: 2em;
}

.header p {
    margin: 5px 0;
    color: #888;
}

.header a {
    color: #4a90e2;
    text-decoration: none;
}

.header a:hover {
    text-decoration: underline;
}

#loading-status {
    font-style: italic;
    color: #888;
}

#graph-container {
    width: 100%;
    height: 80vh;
}