    body {
      margin: 0;
      padding: 0;
      overflow: hidden;
      font-family: sans-serif;
    }

    .container {
      width: 100vw;
      height: 100vh;
      display: flex;
      flex-direction: column;
    }

    .top-controls {
      padding: 10px;
      background-color: #333;
      color: white;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .map-view {
      flex-grow: 1;
      background-color: #87CEEB;
      position: relative;
    }

    button {
      padding: 8px 16px;
      background-color: #4CAF50;
      color: white;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      margin-right: 10px;
    }

    button:hover {
      background-color: #45a049;
    }

    #phase-display {
      font-weight: bold;
      margin-left: 10px;
    }

    #file-input {
      display: none;
    }

    #info-panel {
      position: absolute;
      bottom: 20px;
      right: 10px;
      width: 300px;
      background-color: rgba(255, 255, 255, 0.8);
      border-radius: 8px;
      padding: 10px;
      font-family: monospace;
      font-size: 12px;
      max-height: 300px;
      overflow-y: auto;
      pointer-events: none;
      /* Let clicks pass through */
    }

    /* New leaderboard styles */
    #leaderboard {
      position: absolute;
      bottom: 20px;
      left: 10px;
      width: 250px;
      background-color: rgba(0, 0, 0, 0.5);
      color: white;
      border-radius: 8px;
      padding: 10px;
      font-size: 14px;
      line-height: 1.4em;
      max-height: 300px;
      overflow-y: auto;
      pointer-events: none;
      /* so we don't block clicks */
    }

    /* Chat windows styles */
    #chat-container {
      position: absolute;
      top: 60px;
      left: 10px;
      right: 10px;
      display: flex;
      flex-direction: row;
      gap: 10px;
      height: 250px;
      pointer-events: auto;
      z-index: 100;
      overflow-x: auto;
      padding-bottom: 5px;
    }

    .chat-window {
      background-color: rgba(255, 255, 255, 0.9);
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
      overflow: hidden;
      transition: all 0.3s ease;
      height: 100%;
      width: 260px;
      min-width: 260px;
      display: flex;
      flex-direction: column;
      flex-shrink: 0;
    }

    .chat-header {
      background-color: #333;
      color: white;
      padding: 8px 12px;
      font-weight: bold;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .chat-messages {
      padding: 10px;
      overflow-y: auto;
      flex-grow: 1;
      height: calc(100% - 36px);
      font-size: 13px;
    }

    .chat-message {
      margin-bottom: 8px;
      padding: 6px 10px;
      border-radius: 8px;
      word-break: break-word;
      width: 85%;
    }

    .message-incoming {
      background-color: #e9e9eb;
      align-self: flex-start;
      margin-right: auto;
    }

    .message-outgoing {
      background-color: #0b93f6;
      color: white;
      align-self: flex-end;
      margin-left: auto;
    }

    .message-time {
      font-size: 10px;
      color: #888;
      margin-top: 2px;
      text-align: right;
    }

    .chat-collapsed {
      max-height: 36px;
    }

    .power-austria {
      color: #c40000;
    }

    .power-england {
      color: #00008B;
    }

    .power-france {
      color: #0fa0d0;
    }

    .power-germany {
      color: #444444;
    }

    .power-italy {
      color: #008000;
    }

    .power-russia {
      color: #cccccc;
    }

    .power-turkey {
      color: #e0c846;
    }
