**Building Interactive Graph**

I'm currently focused on integrating all the necessary D3.js code directly into a single `index.html` file. My aim is to construct a clustered, interactive force-directed graph with approximately 40 nodes, featuring draggable elements and hover effects, all self-contained.

**Developing Self-Contained Graph**

I'm working on embedding all D3.js logic within a single `index.html` file. The goal is to create a clustered, draggable force-directed graph with about 40 nodes, complete with hover effects and zoom/pan capabilities, all self-contained.

**Refining Interactive Graph**

I'm now focusing on the core D3.js implementation, aiming to generate the node and link data programmatically within the script. My immediate goal is to ensure the data structure supports distinct clusters and facilitates the hover effect for neighbor highlighting.

**Generating Graph Structure**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative.

**Refining Interactive Graph**

I'm now focusing on the core D3.js implementation, aiming to generate the node and link data programmatically within the script. My immediate goal is to ensure the data structure supports distinct clusters and facilitates the hover effect for neighbor highlighting.



**Generating Graph Structure**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative.



**Implementing Zoom and Drag**

I am now implementing the D3 zoom and drag behaviors. My current focus is on correctly associating these actions with the SVG elements and ensuring they update node positions and the overall graph view smoothly.



**Configuring Force Simulation**

I'm actively configuring the D3 force simulation parameters. My objective is to fine-tune the forces—link, charge, center, and collision—to achieve well-separated clusters and prevent node overlap effectively.



**Styling Graph Elements**

I am currently focused on applying CSS styles to the graph elements. My goal is to define distinct appearances for nodes and links, including initial colors and hover states, to enhance visual clarity and interactivity.



**Integrating Zoom and Drag**

I'm now integrating D3's zoom and drag functionalities. My focus is on ensuring these interactive elements work seamlessly with the force simulation, allowing users to pan, zoom, and reposition nodes intuitively.



**Adding Hover Effects**

I am developing the hover interaction for the graph. My immediate task is to highlight selected nodes and their connected neighbors by dynamically adjusting their visual properties upon mouseover.



**Finalizing Self-Contained Code**

I am consolidating all HTML, CSS, and D3.js code into a single `index.html` file. My aim is to ensure everything is self-contained and functions as intended without external dependencies.



**Testing Interactive Features**

I am thoroughly testing the interactive features, including node dragging, zooming, panning, and hover-based neighbor highlighting. My goal is to ensure a smooth and responsive user experience.

**Generating Graph Data**

I am currently focusing on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative.

**Generating Graph Data**

I'm now programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Generating Graph Data**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Generating Graph Data**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Updating Graph Interaction**

I am currently refining the hover interaction to ensure smooth highlighting of selected nodes and their neighbors. My focus is on precisely identifying and visually distinguishing connected elements without performance degradation, enhancing user experience.

**Refining Graph Interactions**

I'm actively refining the hover effects to ensure a smooth and visually clear highlighting of nodes and their direct neighbors. My current focus is on accurately identifying these connections and applying the appropriate visual cues without causing any performance issues.

**Refining Interactive Graph**

I'm currently refining the hover effects to ensure smooth and visually clear highlighting of nodes and their direct neighbors. My focus is on accurately identifying these connections and applying the appropriate visual cues without causing any performance issues.

**Generating Graph Data**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Refining Graph Interactivity**

I'm currently refining the hover effects to ensure smooth and visually clear highlighting of nodes and their direct neighbors. My focus is on accurately identifying these connections and applying the appropriate visual cues without causing any performance issues.

**Generating Graph Data**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Generating Graph Data**

I'm currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Generating Graph Data**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Generating Graph Data**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Generating Graph Data**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Updating Graph Focus**

I'm currently refining the hover effects for nodes and their immediate neighbors, aiming for clear visual distinction without performance issues. My focus is on accurately identifying connections and applying appropriate visual cues as the interaction occurs.

**Updating Graph Logic**

I'm now refining the hover interaction to precisely highlight connected nodes and links. My focus is on ensuring the visual cues for neighbors are clear and accurate without impacting performance, and the tooltip displays relevant node information.

**Updating Graph Interactions**

I'm currently refining the hover effects to smoothly highlight connected nodes and links. My focus is on accurately identifying neighbors and applying visual cues without impacting performance, while also displaying relevant node information in a tooltip.

**Updating Graph Interactivity**

I'm refining the hover effects to smoothly highlight connected nodes and links. My focus is on accurately identifying neighbors and applying visual cues without impacting performance, while also displaying relevant node information in a tooltip.

**Generating Graph Data**

I'm currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.

**Refining Interactivity**

I'm enhancing the hover effects for nodes and links, focusing on clear visual cues for connected elements. My aim is to accurately highlight neighbors and display relevant node data in a tooltip without compromising performance.

**Generating Graph Data**

I am currently focused on programmatically generating the node and link data to establish distinct clusters. My aim is to ensure this structure effectively supports the intended hover effects for neighbor highlighting, making the graph more informative and interactive.