feat: overhaul competence pages, unify brand colors, and polish site integrity

- Rewrote all 5 competence pages (Kabeltiefbau, Bohrtechnik, Glasfaser, Planung, Vermessung) with factual data from references
- Unified brand colors: replaced toxic neon green with brand-aligned teal (#10a379)
- Fixed ReferencesSlider injection in dynamic MDX pages
- Enhanced Footer with icon parity, improved branding placement, and unified hover effects
- Refined Header with 3D micro-animations and improved dropdown visibility
- Fixed localized tracking API (rewrites for /stats/api/send)
- Resolved ReferenceErrors in InteractiveGermanyMap and Header state management
- Cleaned reference titles and truncated metadata in lists

content/en/bohrtechnik.mdx

@@ -0,0 +1,60 @@
+---
+title: "Trenchless Line Laying"
+date: "2024-03-20"
+excerpt: "Precise horizontal directional drilling and earth rockets in all soil classes for surface-friendly and trenchless line laying."
+layout: "fullBleed"
+---
+
+<HeroSection
+  badge="Core Competency"
+  title="Trenchless Laying"
+  subtitle="Surface-friendly horizontal directional drilling and earth rockets"
+  backgroundImage={{ url: '/assets/photos/DSC08653.JPG' }}
+  alignment="center"
+  ctaLabel="Request a project"
+  ctaHref="/en/kontakt"
+/>
+
+<ServiceDetailGrid
+  badge="Procedures"
+  title="Efficient & Environmentally Friendly"
+  descriptionParagraphs={[
+    "If classic trench construction is out of the question for reasons of space, environment, or cost, we rely on **state-of-the-art trenchless techniques**.",
+    "This not only protects nature but also significantly saves on restoration costs for complex surfaces."
+  ]}
+  panels={[
+    {
+      id: "hdd",
+      title: "Horizontal Directional Drilling (HDD)",
+      icon: "hdd",
+      fullWidth: false,
+      lists: [
+        [
+          "Max. drilling length: 250 m",
+          "Max. diameter: 400mm pipe",
+          "Complex crossing of railways, highways & water bodies"
+        ]
+      ]
+    },
+    {
+      id: "erdrakete",
+      title: "Earth Rocket",
+      icon: "hdd",
+      fullWidth: false,
+      lists: [
+        [
+          "Max. crossing length: 15 m",
+          "Max. diameter: 160mm pipe",
+          "Fast house connections without trenches"
+        ]
+      ]
+    }
+  ]}
+/>
+
+<CallToAction 
+  title="Looking for a trenchless solution?" 
+  text="We would be happy to advise you on the possibilities of horizontal directional drilling for your project."
+  buttonText="Contact us"
+  buttonLink="/en/kontakt"
+/>