:root {
      --bg-dark: #1e1e1e;
      --bg-light: #2e2e2e;
      --maze-bg: #242424;
      --wall-color: #111;
      --floor-color: #3a3a3a;
      --end-color: #f1c40f;
      --player-color: #2ecc71;
      --text-color: #ecf0f1;
    }

    * { box-sizing: border-box; }
    html, body {
      margin: 0;
      padding: 0;
      height: 100vh;
      overflow: hidden;
      background: linear-gradient(135deg, var(--bg-dark), var(--bg-light));
      color: var(--text-color);
      font-family: 'Press Start 2P', monospace;
      user-select: none;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    #game-container {
      background: rgba(0,0,0,0.7);
      padding: 24px;
      border-radius: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      box-shadow: 0 6px 20px rgba(0,0,0,0.8);
      max-height: 100%;
      overflow: auto;
    }

    #info {
      background: rgba(0,0,0,0.5);
      padding: 8px 12px;
      border-radius: 6px;
      font-size: 0.9rem;
      text-align: center;
      margin-bottom: 12px;
    }
    #maze {
      display: grid;
      grid-template: repeat(10, 40px) / repeat(10, 40px);
      gap: 4px;
      background: var(--maze-bg);
      padding: 4px;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.6);
    }

    .cell {
      width: 40px;
      height: 40px;
      background: var(--floor-color);
      border-radius: 4px;
      transition: background 0.2s ease, box-shadow 0.2s ease;
    }
    .wall { background: var(--wall-color); }
    .end { background: var(--end-color); box-shadow: 0 0 8px var(--end-color); }
    .player { background: var(--player-color); box-shadow: 0 0 12px var(--player-color); }

    #message {
      margin-top: 12px;
      background: rgba(0,0,0,0.5);
      padding: 10px 14px;
      border-radius: 6px;
      font-size: 0.9rem;
      text-align: center;
      min-height: 2em;
    }
    #flag {
      margin-top: 8px;
      font-size: 1rem;
      color: var(--end-color);
      text-shadow: 0 0 5px var(--end-color);
      min-height: 1.2em;