body, html {
      margin: 0;
      height: 100%;
      font-family: Arial, sans-serif;
    }

    .container {
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .controls {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px;
      background: #fff;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      z-index: 10;
    }

    .controls input, 
    .controls select, 
    .controls button {
      padding: 8px;
      font-size: 14px;
      border: 1px solid #ccc;
      border-radius: 6px;
    }

    .controls button {
      cursor: pointer;
      background: #007BFF;
      color: #fff;
      border: none;
      transition: background 0.2s
    }

    .controls button:hover {
      background: #0056b3;
    }

    .value {
      padding: 5px;
      font-size: 14px;
    }

    .map {
      flex: 1;
    }

    #map {
      height: 100%;
      width: 100%;
    }

    .map-placeholder {
      position: absolute;
      inset: 0;
      background: #e0e0e0;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #666;
      font-size: 18px;
    }