     padding: 8px 15px;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.2s;
            margin-bottom: 20px;
            align-self: flex-start;
            margin-left: 20px;
        }

        .back-button:hover {
            background-color: #2980b9;
        }

        .node.turn-owner {
            border: 2px solid #fff;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
        }

        .node-owner-indicat