.tabs {
            display: flex;
            background-color: #3498db;
        }

        .tab {
            flex: 1;
            text-align: center;
            padding: 15px;
            cursor: pointer;
            color: #fff;
            transition: background-color 0.3s;
        }

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

        .tab.active {
            background-color: #2980b9;
            font-weight: bold;
        }

        .tab-content {
            display: none;
            padding: 20px;
        }

        .tab-content.active {
            display: block;
        }

        .title {
            font-size: 1.2em;
            font-weight: bold;
            margin-bottom: 10px;
            color: #2c3e50;
        }

     

       
        #drawing-canvas {
            border: 1px solid #bdc3c7;
            border-radius: 4px;
        }

        .canvas-controls {
            margin-top: 10px;
            display: flex;
            justify-content: space-between;
        }