{{- /*
  partials/meta/og.html — Open Graph + Twitter Card meta tags

  og:title        Page title (site title for home page)
  og:description  .Description → .Site.Params.description → ""
  og:url          .Permalink
  og:type         "website" (home) | "article" (everything else)
  og:site_name    .Site.Title
  og:image        .Params.image → .Site.Params.og_image → absent
  twitter:card    "summary_large_image" when image present, else "summary"
  twitter:site    .Site.Params.twitter (optional @handle)

  Configure in hugo.toml:
    [params]
      og_image = "/images/og-default.png"   # fallback OG image
      twitter   = "@yourhandle"             # omit if not on Twitter/X
*/ -}}
{{- $title := cond .IsHome .Site.Title (printf "%s · %s" .Title .Site.Title) -}}
{{- $desc  := or .Description .Site.Params.description "" -}}
{{- $image := or .Params.image .Site.Params.og_image "" -}}
{{- $type  := cond .IsHome "website" "article" -}}

<meta property="og:title"       content="{{ $title }}">
<meta property="og:description" content="{{ $desc }}">
<meta property="og:url"         content="{{ .Permalink }}">
<meta property="og:type"        content="{{ $type }}">
<meta property="og:site_name"   content="{{ .Site.Title }}">
{{- with $image }}
<meta property="og:image"       content="{{ . | absURL }}">
{{- end }}

{{- /* Twitter / X Card */}}
<meta name="twitter:card"        content="{{ if $image }}summary_large_image{{ else }}summary{{ end }}">
<meta name="twitter:title"       content="{{ $title }}">
<meta name="twitter:description" content="{{ $desc }}">
{{- with $image }}
<meta name="twitter:image"       content="{{ . | absURL }}">
{{- end }}
{{- with .Site.Params.twitter }}
<meta name="twitter:site"        content="{{ . }}">
{{- end }}