{{define "head-styles"}}
    {{if .IsProduction}}
    <!-- CSS - Bundled CSS (built via 'make css-prod') -->
    <link rel="stylesheet" href="/static/dist/bundle.min.css?v=20251206b">
    {{else}}
    <!-- CSS - Modular (development) -->
    <link rel="stylesheet" href="/static/css/main.css">
    {{end}}
    {{if .ChatEnabled}}
    <link rel="stylesheet" href="/static/css/04-interactive/_chat.css?v=20260408">
    {{end}}
    <!-- Print styles - loaded separately, only applied when printing -->
    <link rel="stylesheet" href="/static/css/print.css" media="print">
{{end}}