olumns: 300px 1fr;
            gap: 20px;
        }
        .sidebar {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            max-height: 80vh;
            overflow-y: auto;
        }
        .main {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        .measure-item {
            padding: 10px;
            