body {
    margin: 0; padding: 0; background: #f8f9fa;
    font-family: Arial, Helvetica, sans-serif;
    display: flex; flex-direction: column; height: 520px; overflow: hidden;
}
#controls {
    background: #444466; padding: 6px 12px;
    display: flex; align-items: center; gap: 12px;
}
#controls label { color: #FFF; font-size: 11px; white-space: nowrap; }
#controls select { padding: 3px 8px; font-size: 11px; border-radius: 4px; border: 1px solid #AAA; }
#controls button {
    background: #C8A832; border: none; color: #333;
    padding: 4px 12px; font-size: 11px; border-radius: 4px; cursor: pointer; font-weight: bold;
}
#info-panel {
    background: #FFFFFF; border-bottom: 2px solid #DDDDDD;
    padding: 6px 14px; min-height: 52px; max-height: 72px; overflow-y: auto;
}
#info-title { font-size: 12px; font-weight: bold; color: #333; margin-bottom: 3px; }
#info-body  { font-size: 11px; color: #555; line-height: 1.45; }
#network-container { flex: 1; }