Wedding styling: self-hosted Cormorant Garant, warm palette, light theme

- Self-host Cormorant Garant WOFF2 files (300/400, normal/italic) in
  static/fonts/ — no external CDN dependency, GDPR-friendly
- Inline @font-face declarations via head-custom.html override
- Warm colour palette (ivory #faf8f4, deep warm near-black #0d0b09)
- Light theme as default
- Hero title: large italic Cormorant Garant 300, uppercased tagline
- Intro text uses muted warm tone for visual hierarchy

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

hugo.toml

@@ -9,7 +9,7 @@ timeZone = "Europe/Berlin"
 timeout = "120s"
 
 [params]
-  defaultTheme = "dark"
+  defaultTheme = "light"
   description = "Hochzeit"
   title = "Hochzeit"
   [params.author]