:root {
            --primary: #2c3e50;
            --success: #27ae60;
            --accent: #3498db;
            --bg: #f0f2f5;
            --sidebar-bg: #ffffff;
        }
        body { font-family: 'Segoe UI', sans-serif; background: var(--bg); margin: 0; padding: 20px; color: #333; }

        /* Two-Column Layout */
        .main-wrapper {
            display: flex;
            gap: 20px;
            max-width: 1100px;
            margin: 0 auto;
            align-items: flex-start;
        }

        .content-main { flex: 3; }

        .sidebar {
            flex: 1;
            background: var(--sidebar-bg);
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            border-top: 4px solid var(--accent);
        }

        .container { background: white; padding: 30px; border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,0.1); }

        h1 { color: var(--primary); margin: 0 0 20px 0; font-size: 24px; }
        h3 { margin-top: 0; color: var(--accent); font-size: 18px; }

        textarea {
            width: 100%; height: 350px; font-family: 'Consolas', monospace;
            background: #1e1e1e; color: #d4d4d4; padding: 15px; border-radius: 8px; border: none; box-sizing: border-box;
            font-size: 13px; line-height: 1.5;
        }

        .button-group { margin-top: 20px; display: flex; justify-content: space-between; align-items: center; }

        #btnRun {
            background: var(--success); color: white; border: none; padding: 12px 25px;
            font-size: 16px; border-radius: 6px; cursor: pointer; font-weight: bold; transition: 0.3s;
        }
        #btnRun:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3); }

        /* Results Card */
        #resultsCard {
            margin-top: 20px; background: #e8f5e9; border: 1px solid var(--success);
            border-radius: 10px; padding: 20px; display: none;
        }

        /* Sidebar Style */
        .example-box p { font-size: 14px; color: #666; line-height: 1.4; }
        .btn-exemplo {
            display: block; text-align: center; background: var(--bg); color: var(--primary);
            text-decoration: none; padding: 10px; border-radius: 6px; border: 1px dashed #ccc;
            margin-top: 15px; font-weight: bold; transition: 0.2s;
        }
        .btn-exemplo:hover { background: #e0e0e0; border-color: var(--accent); }

        #status { color: var(--accent); font-weight: bold; display: none; }

        @media (max-width: 850px) { .main-wrapper { flex-direction: column; } .sidebar { width: 100%; box-sizing: border-box; } }

	#container-3d {
       height: 400px;
       width: 100%;
       background: #fff;
       border-radius: 8px;
       border: 1px solid #ddd;
       position: relative;
       margin-bottom: 20px;
      }