Improve the frontend and repository layer

frontend/src/locales/en/landing.json

@@ -260,6 +260,50 @@
     "subtitle": "No hidden costs, no long commitments. Start free and scale as you grow.",
     "compare_link": "View complete feature comparison"
   },
+  "sustainability": {
+    "badge": "UN SDG 12.3 & EU Green Deal Aligned",
+    "title_main": "Not Just Reduce Waste",
+    "title_accent": "Prove It to the World",
+    "subtitle": "The only AI platform with built-in UN SDG 12.3 compliance tracking. Reduce waste, save money, and qualify for EU sustainability grants—all with verifiable environmental impact metrics.",
+    "metrics": {
+      "co2_avoided": "CO₂ Avoided Monthly",
+      "co2_equivalent": "Equivalent to 43 trees planted",
+      "water_saved": "Water Saved Monthly",
+      "water_equivalent": "Equivalent to 4,500 showers",
+      "grants_eligible": "Grant Programs Eligible",
+      "grants_value": "Up to €50,000 in funding"
+    },
+    "sdg": {
+      "title": "UN SDG 12.3 Compliance",
+      "subtitle": "Halve food waste by 2030",
+      "description": "Real-time tracking toward the UN Sustainable Development Goal 12.3 target. Our AI helps you achieve 50% waste reduction with verifiable, auditable data for grant applications and certifications.",
+      "progress_label": "Progress to Target",
+      "baseline": "Baseline",
+      "current": "Current",
+      "target": "Target 2030",
+      "features": {
+        "tracking": "Automated waste baseline and progress tracking",
+        "export": "One-click grant application report export",
+        "certification": "Certification-ready environmental impact data"
+      }
+    },
+    "grants": {
+      "eu_horizon": "EU Horizon Europe",
+      "eu_horizon_req": "Requires 30% reduction",
+      "farm_to_fork": "Farm to Fork",
+      "farm_to_fork_req": "Requires 20% reduction",
+      "circular_economy": "Circular Economy",
+      "circular_economy_req": "Requires 15% reduction",
+      "un_sdg": "UN SDG Certified",
+      "un_sdg_req": "Requires 50% reduction",
+      "eligible": "Eligible",
+      "on_track": "On Track"
+    },
+    "differentiator": {
+      "title": "The Only AI Platform",
+      "description": "With built-in UN SDG 12.3 tracking, real-time environmental impact calculations, and one-click grant application exports. Not just reduce waste—prove it."
+    }
+  },
   "final_cta": {
     "scarcity_badge": "12 spots remaining of the 20 pilot program",
     "title": "Be Among the First 20 Bakeries",