{# Code Viewer Modal - displays source code with syntax highlighting #}
<div id="code-viewer-modal" class="code-viewer-modal hidden">
    <div class="code-viewer-container">
        <div class="code-viewer-header">
            <div>
                <span id="code-viewer-title" class="code-viewer-title"></span>
                <span id="code-viewer-line" class="code-viewer-line"></span>
                <a id="code-viewer-vscode" href="#" title="Open in VS Code" class="vscode-link" style="font-size: 18px;">🔧</a>
            </div>
            <button class="code-viewer-close" onclick="closeCodeViewer()">Close (Esc)</button>
        </div>
        <div id="code-viewer-content" class="code-viewer-body"></div>
    </div>
</div>