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/karriere.mdx

@@ -7,58 +7,94 @@ layout: "fullBleed"
 
 <HomeHero 
   badge="Careers"
-  title="Build the Future\nwith Us"
-  description="We are looking for motivated talents who want to shape the digital and energy infrastructure of tomorrow. Join the E-TIB team."
+  title="Build the Future"
+  description="Are you looking for a new challenge in a future-proof market? At E-TIB, we work daily to network Germany and drive the energy transition forward."
   videoUrl="/assets/videos/web/hero-kabelpflug.mp4"
-  linkText="View Open Positions"
-  linkHref="#jobs"
+  linkText="Open Positions"
+  linkHref="#stellen"
 />
 
-<div id="jobs">
-  <JobListingBlock 
-    showFairs={false} 
-    showJobs={true}
-    title="Current Job Offers"
-    fairsTitle="Upcoming Trade Fairs 2026"
-    fairs={[
-      { name: 'Intersolar Munich', date: 'June 19 - 21, 2026', type: 'Energy Fair' },
-      { name: 'Wind Energy Days Linstow', date: 'Nov 04 - 06, 2026', type: 'Specialist Congress' },
-      { name: 'Cable Workshop Wiesbaden', date: 'Dec 02 - 03, 2026', type: 'Trade Fair' }
-    ]}
-    emptyStateMessage="Currently all positions are filled. However, we welcome your speculative application!"
-    emptyStateLinkText="Contact us now"
-    emptyStateLinkHref="/en/kontakt"
-  />
-</div>
+<JobListingBlock showFairs={false} showJobs={true} />
 
-<div className="bg-white py-24 border-t border-neutral-100">
-  <div className="container max-w-4xl mx-auto px-4 prose prose-lg md:prose-xl prose-headings:font-bold prose-headings:text-neutral-dark prose-p:text-text-secondary prose-li:text-text-secondary prose-ul:space-y-2">
-    <h2>Careers at E-TIB</h2>
-    <div>
-      E-TIB GmbH was founded in 2015 out of the motivation to enable high-quality services for our customers as well as fair remuneration for our employees. In addition to remuneration, the appreciation of each individual employee is our top priority.
-    </div>
-    
-    <h3>We offer our employees:</h3>
-    <ul>
-      <li>Deployment in regional and supra-regional construction projects</li>
-      <li>Secure, permanent full-time employment contract</li>
-      <li>Appropriate training in a committed team</li>
-      <li>Performance-related and fair remuneration</li>
-      <li>Daily allowance up to 30.00 EUR per working day</li>
-      <li>31 days of vacation plus vacation pay</li>
-      <li>Work clothing (Engelbert Strauss)</li>
-      <li>Monthly additional payments (personal MasterCard)</li>
-      <li>Contribution to company pension scheme</li>
-      <li>Individual training and development opportunities</li>
-      <li>Provision of vehicle for operational use and trips to the construction site</li>
-      <li>Family atmosphere with company-organized events</li>
-    </ul>
-
-    <div>
-      Our successful corporate development enables us to continuously hire new workers. We are always looking for committed and motivated employees. Become a part of our team. Take a look at our open positions or apply speculatively.
-    </div>
-  </div>
-</div>
+<BenefitGrid 
+  badge="E-TIB Standard"
+  title="We offer our employees"
+  description="E-TIB GmbH was founded with the motivation to provide high-quality services and fair remuneration. In addition to remuneration, the appreciation of each individual employee is our top priority."
+  benefits={[
+    {
+      id: "region",
+      title: "Exciting Projects",
+      description: "Deployment in interesting regional and supra-regional construction projects.",
+      icon: "region"
+    },
+    {
+      id: "contract",
+      title: "Permanent Contract",
+      description: "Secure job with a permanent full-time employment contract.",
+      icon: "contract"
+    },
+    {
+      id: "money",
+      title: "Fair Remuneration",
+      description: "Performance-related, above-average, and fair payment.",
+      icon: "money"
+    },
+    {
+      id: "allowance",
+      title: "Daily Allowance",
+      description: "We pay a tax-free daily allowance of up to 30.00 EUR per working day.",
+      icon: "allowance"
+    },
+    {
+      id: "vacation",
+      title: "31 Days of Vacation",
+      description: "31 days of annual vacation plus additional vacation pay for relaxation.",
+      icon: "vacation"
+    },
+    {
+      id: "clothes",
+      title: "Premium Workwear",
+      description: "High-quality Engelbert Strauss work clothing is fully provided.",
+      icon: "clothes"
+    },
+    {
+      id: "card",
+      title: "Additional Payments",
+      description: "Monthly bonuses via a personal MasterCard.",
+      icon: "card"
+    },
+    {
+      id: "retirement",
+      title: "Pension Scheme",
+      description: "Attractive contribution to the company pension scheme.",
+      icon: "retirement"
+    },
+    {
+      id: "education",
+      title: "Further Training",
+      description: "Individual development and promotion opportunities within the company.",
+      icon: "education"
+    },
+    {
+      id: "car",
+      title: "Company Vehicle",
+      description: "Provision of a vehicle for operational use and trips to the construction site.",
+      icon: "car"
+    },
+    {
+      id: "team",
+      title: "Intensive Onboarding",
+      description: "Professional onboarding in a helpful and committed team.",
+      icon: "team"
+    },
+    {
+      id: "family",
+      title: "Family Atmosphere",
+      description: "Strong cohesion through regular company-organized events.",
+      icon: "family"
+    }
+  ]}
+/>
 
 <CallToAction 
   title="Speculative Application (m/f/d)"