diff --git a/app/installation/page.tsx b/app/installation/page.tsx
index cc49a37..08ce391 100644
--- a/app/installation/page.tsx
+++ b/app/installation/page.tsx
@@ -7,6 +7,7 @@ import {
 } from '@heroicons/react/24/outline';
 import Image from 'next/image';
 import { useState } from 'react';
+import CircularButton from '../ui/components/circular-button';
 
 import Data4HealthCoder from './components/Data4HealthCoder';
 import Data4HealthNonCoder from './components/Data4HealthNonCoder';
@@ -41,54 +42,7 @@ interface SubButtonConfig {
 }
 
 
-function CircularButton({ icon, label, onClick, isImage = false, isActive = false }: CircularButtonProps) {
-  const Icon = icon as React.ElementType; // For when icon is a component
-  return (
-    <div className="flex flex-col items-center space-y-2 group">
-      <div
-        role="button"
-        tabIndex={0}
-        onClick={onClick}
-        onKeyDown={(e) => {
-          if (e.key === 'Enter' || e.key === ' ') {
-            e.preventDefault();
-            onClick();
-          }
-        }}
-        className={`cursor-pointer transform transition-all duration-300 ease-in-out hover:scale-110 hover:shadow-lg rounded-full p-4 w-24 h-24 flex items-center justify-center
-          ${isActive 
-            ? 'bg-purple-100 shadow-lg scale-105 rotate-3' 
-            : 'hover:bg-purple-50 hover:rotate-3'}`}
-      >
-        {isImage ? (
-          <Image 
-            src={icon as string} 
-            alt={label}
-            width={80}
-            height={80}
-            className={`text-current transform transition-transform duration-300 
-              ${isActive ? '-rotate-3' : 'group-hover:-rotate-3'}`}
-          />
-        ) : (
-          // allow passing a simple string (emoji) as icon
-          typeof icon === 'string' ? (
-            <span className={`text-2xl transition-all duration-300 ${isActive ? 'text-purple-700' : 'text-dark-purple group-hover:text-purple-700'}`}>
-              {icon}
-            </span>
-          ) : (
-            <Icon className={`h-12 w-12 transition-all duration-300 
-              ${isActive ? 'text-purple-700' : 'text-dark-purple group-hover:text-purple-700'}`} 
-            />
-          )
-        )}
-      </div>
-      <span className={`text-sm font-medium transition-all duration-300 
-        ${isActive ? 'text-purple-700' : 'group-hover:text-purple-700'}`}>
-        {label}
-      </span>
-    </div>
-  );
-}
+// CircularButton is now a shared component in app/ui/components/circular-button.tsx
 
 interface SubButtonsProps {
   section: Section;
@@ -184,6 +138,14 @@ function InstallationContent({ section, type }: InstallationContentProps) {
 export default function Page() {
   const [activeSection, setActiveSection] = useState<Section | null>(null);
   const [activeInstallType, setActiveInstallType] = useState<'coder' | 'noncoder' | null>(null);
+  // Toggle buttons by editing this map in code. Set true to disable, false to enable.
+  const disabledMap: Record<Section, boolean> = {
+    data4health: false,
+    clim4health: false,
+    land4health: false,
+    socio4health: false,
+    cube4health: false,
+  };
 
   const handleToolkitClick = (section: Section) => {
     if (section === activeSection) {
@@ -207,41 +169,27 @@ export default function Page() {
       </p>
       
       <div className="mb-8 mt-6 flex flex-wrap justify-center gap-8">
-        <CircularButton
-          icon={D4H_LOGO}
-          label="data4Health"
-          onClick={() => handleToolkitClick('data4health')}
-          isImage={true}
-          isActive={activeSection === 'data4health'}
-        />
-        <CircularButton
-          icon={C4H_LOGO}
-          label="clim4health"
-          onClick={() => handleToolkitClick('clim4health')}
-          isImage={true}
-          isActive={activeSection === 'clim4health'}
-        />
-        <CircularButton
-          icon={L4H_LOGO}
-          label="land4health"
-          onClick={() => handleToolkitClick('land4health')}
-          isImage={true}
-          isActive={activeSection === 'land4health'}
-        />
-        <CircularButton
-          icon={S4H_LOGO}
-          label="socio4health"
-          onClick={() => handleToolkitClick('socio4health')}
-          isImage={true}
-          isActive={activeSection === 'socio4health'}
-        />
-        <CircularButton
-          icon={CU4H_LOGO}
-          label="cube4health"
-          onClick={() => handleToolkitClick('cube4health')}
-          isImage={true}
-          isActive={false}
-        />
+        {[
+          { key: 'data4health', logo: D4H_LOGO, label: 'data4Health' },
+          { key: 'clim4health', logo: C4H_LOGO, label: 'clim4health' },
+          { key: 'land4health', logo: L4H_LOGO, label: 'land4health' },
+          { key: 'socio4health', logo: S4H_LOGO, label: 'socio4health' },
+          { key: 'cube4health', logo: CU4H_LOGO, label: 'cube4health' },
+        ].map((tk) => {
+          const section = tk.key as Section;
+          return (
+            <div key={tk.key} className="flex flex-col items-center">
+              <CircularButton
+                icon={tk.logo}
+                label={tk.label}
+                onClick={() => handleToolkitClick(section)}
+                isImage={true}
+                isActive={activeSection === section}
+                disabled={disabledMap[section]}
+              />
+            </div>
+          );
+        })}
       </div>
 
       {activeSection && (
diff --git a/app/trainings/page.tsx b/app/trainings/page.tsx
new file mode 100644
index 0000000..a4dffbe
--- /dev/null
+++ b/app/trainings/page.tsx
@@ -0,0 +1,170 @@
+'use client';
+
+import React from 'react';
+import Image from 'next/image';
+import { useState } from 'react';
+import CircularButton from '../ui/components/circular-button';
+import DownloadButton from '../ui/components/download-button';
+
+const D4H_LOGO = '/cards/toolkits/data4health.svg';
+const C4H_LOGO = '/cards/toolkits/clim4health.svg';
+const L4H_LOGO = '/cards/toolkits/land4health.svg';
+const S4H_LOGO = '/cards/toolkits/socio4health.svg';
+const CU4H_LOGO = '/cards/toolkits/cube4health.svg';
+
+
+type Section = 'data4health' | 'clim4health' | 'land4health' | 'socio4health' | 'cube4health';
+
+interface CircularButtonProps {
+  icon: React.ElementType | string;
+  label: string;
+  onClick: () => void;
+  isImage?: boolean;
+  isActive?: boolean;
+  size?: 'sm' | 'md';
+}
+
+
+function SubButtons({ section }: { section: Section }) {
+  const resources: Record<Section, { pdf?: string; related?: Array<{ label: string; href: string; isFile?: boolean; useButton?: boolean }> }> = {
+    data4health: {
+      pdf: '/training/data4health-training.pdf',
+      related: [
+        //{ label: 'Quickstart (download)', href: '/cards/toolkits/data4health-quickstart.zip', isFile: true },
+        //{ label: 'Online docs', href: 'https://example.org/data4health' },
+      ],
+    },
+    clim4health: {
+      pdf: '/training/clim4health-training.pdf',
+      related: [
+        { label: 'Clim4Health training files', href: '/training/clim4health_for_website.zip', isFile: true, useButton: true },
+      ],
+    },
+    land4health: {
+      pdf: '/cards/toolkits/land4health-installation.pdf',
+      related: [
+        { label: 'Land4Health dataset', href: '/cards/toolkits/land4health-dataset.zip', isFile: true },
+        { label: 'Documentation', href: 'https://example.org/land4health' },
+      ],
+    },
+    socio4health: {
+      pdf: '/cards/toolkits/socio4health-installation.pdf',
+      related: [
+        { label: 'Socio4Health notes (download)', href: '/cards/toolkits/socio4health-notes.pdf', isFile: true },
+        { label: 'Website', href: 'https://example.org/socio4health' },
+      ],
+    },
+    cube4health: {
+      pdf: '/training/cube4health-training.pdf',
+      related: [
+        //{ label: 'Cube4Health examples', href: '/cards/toolkits/cube4health-examples.zip', isFile: true },
+        //{ label: 'Repo', href: 'https://example.org/cube4health' },
+      ],
+    },
+  };
+
+  const entry = resources[section];
+
+  return (
+    <article className="prose mx-auto mt-8 w-full max-w-4xl">
+
+      {entry?.pdf ? (
+        <div className="mt-6 border rounded overflow-hidden" style={{ height: 720 }}>
+          {/* The iframe/embed will show the PDF. If the PDF isn't present, users
+              can use the link below to open/download it. */}
+          <iframe
+            src={entry.pdf}
+            title={`${section} installation guide`}
+            className="w-full h-full"
+            style={{ border: 'none' }}
+          />
+        </div>
+      ) : (
+        <p className="mt-4 text-sm text-gray-500">No PDF guide available for this toolkit.</p>
+      )}
+
+      {entry.related && entry.related.length > 0 && (
+        <div className="mt-6">
+          <h3 className="text-lg font-medium">References</h3>
+          <div className="mt-3 space-y-3">
+            {entry.related.map((r, i) => (
+              <div key={i} className="my-0">
+                {r.useButton && r.isFile ? (
+                  <DownloadButton href={r.href} label={r.label} />
+                ) : (
+                  <a
+                    href={r.href}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    className="text-purple-700 hover:underline block"
+                    {...(r.isFile ? { download: '' } : {})}
+                  >
+                    {r.label}
+                  </a>
+                )}
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+    </article>
+  );
+}
+
+
+export default function Page() {
+  const [activeSection, setActiveSection] = useState<Section | null>(null);
+  // Toggle buttons by editing this map in code. Set true to disable, false to enable.
+  const disabledMap: Record<Section, boolean> = {
+    data4health: false,
+    clim4health: true,
+    land4health: true,
+    socio4health: true,
+    cube4health: true,
+  };
+
+  const handleToolkitClick = (section: Section) => {
+    if (section === activeSection) {
+      setActiveSection(null);
+    } else {
+      setActiveSection(section);
+    }
+  };
+
+  return (
+    <div className="container mx-auto px-4">
+      <h1 className="mb-2 mt-6 text-3xl font-semibold md:mt-0">Trainings</h1>
+      <p className="text-justify text-l text-gray-500">
+        This section contains the workshop development support materials.
+      </p>
+      
+      <div className="mb-8 mt-6 flex flex-wrap justify-center gap-8">
+        {[
+          { key: 'data4health', logo: D4H_LOGO, label: 'data4Health' },
+          { key: 'clim4health', logo: C4H_LOGO, label: 'clim4health' },
+          { key: 'land4health', logo: L4H_LOGO, label: 'land4health' },
+          { key: 'socio4health', logo: S4H_LOGO, label: 'socio4health' },
+          { key: 'cube4health', logo: CU4H_LOGO, label: 'cube4health' },
+        ].map((tk) => {
+          const section = tk.key as Section;
+          return (
+            <div key={tk.key} className="flex flex-col items-center">
+              <CircularButton
+                icon={tk.logo}
+                label={tk.label}
+                onClick={() => handleToolkitClick(section)}
+                isImage={true}
+                isActive={activeSection === section}
+                disabled={disabledMap[section]}
+              />
+            </div>
+          );
+        })}
+      </div>
+
+      {activeSection && (
+        <SubButtons section={activeSection} />
+      )}
+    </div>
+  );
+}
diff --git a/app/ui/components/circular-button.tsx b/app/ui/components/circular-button.tsx
new file mode 100644
index 0000000..073e84e
--- /dev/null
+++ b/app/ui/components/circular-button.tsx
@@ -0,0 +1,65 @@
+import React from 'react';
+import Image from 'next/image';
+
+export interface CircularButtonProps {
+  icon: React.ElementType | string;
+  label: string;
+  onClick: () => void;
+  isImage?: boolean;
+  isActive?: boolean;
+  disabled?: boolean;
+  size?: 'sm' | 'md';
+}
+
+export default function CircularButton({ icon, label, onClick, isImage = false, isActive = false, disabled = false }: CircularButtonProps) {
+  const Icon = icon as React.ElementType;
+  // stronger fade when disabled and remove hover effects
+  const containerClasses = `transform transition-all duration-300 ease-in-out rounded-full p-4 w-24 h-24 flex items-center justify-center ${
+    disabled ? 'opacity-30 cursor-not-allowed' : 'cursor-pointer hover:scale-110 hover:shadow-lg'
+  }`;
+
+  const activeBg = isActive ? 'bg-purple-100 shadow-lg scale-105 rotate-3' : (disabled ? '' : 'hover:bg-purple-50 hover:rotate-3');
+
+  return (
+    <div className="flex flex-col items-center space-y-2 group">
+      <div
+        role="button"
+        tabIndex={disabled ? -1 : 0}
+        aria-disabled={disabled}
+        onClick={() => {
+          if (!disabled) onClick();
+        }}
+        onKeyDown={(e) => {
+          if (disabled) return;
+          if (e.key === 'Enter' || e.key === ' ') {
+            e.preventDefault();
+            onClick();
+          }
+        }}
+        className={`${containerClasses} ${activeBg}`}
+      >
+        {isImage ? (
+          <Image 
+            src={icon as string} 
+            alt={label}
+            width={80}
+            height={80}
+            className={`text-current transform transition-transform duration-300 ${disabled ? 'filter grayscale' : ''} ${isActive ? '-rotate-3' : (disabled ? '' : 'group-hover:-rotate-3')}`}
+          />
+        ) : (
+          typeof icon === 'string' ? (
+            <span className={`text-2xl transition-all duration-300 ${isActive ? 'text-purple-700' : 'text-dark-purple'} ${disabled ? 'text-gray-400' : 'group-hover:text-purple-700'}`}>
+              {icon}
+            </span>
+          ) : (
+            <Icon className={`h-12 w-12 transition-all duration-300 ${isActive ? 'text-purple-700' : 'text-dark-purple'} ${disabled ? 'filter grayscale text-gray-400' : 'group-hover:text-purple-700'}`} 
+            />
+          )
+        )}
+      </div>
+      <span className={`text-sm font-medium transition-all duration-300 ${isActive ? 'text-purple-700' : (disabled ? 'text-gray-400' : 'group-hover:text-purple-700')}`}>
+        {label}
+      </span>
+    </div>
+  );
+}
diff --git a/app/ui/components/download-button.tsx b/app/ui/components/download-button.tsx
new file mode 100644
index 0000000..1f718e1
--- /dev/null
+++ b/app/ui/components/download-button.tsx
@@ -0,0 +1,26 @@
+import React from 'react';
+
+interface DownloadButtonProps {
+  href: string;
+  label?: string;
+  className?: string;
+}
+
+export default function DownloadButton({ href, label = 'Download', className = '' }: DownloadButtonProps) {
+  return (
+    <a
+      href={href}
+      download
+      className={`inline-flex items-center gap-2 rounded-md bg-purple-600 hover:bg-purple-700 focus:ring-2 focus:ring-purple-300 text-white px-4 py-2 text-sm font-medium shadow-sm transition-colors ${className}`}
+      aria-label={label}
+      target="_blank"
+      rel="noopener noreferrer"
+    >
+      {/* Simple download SVG */}
+      <svg xmlns="http://www.w3.org/2000/svg" className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+        <path strokeLinecap="round" strokeLinejoin="round" d="M12 3v12m0 0l4-4m-4 4-4-4M21 21H3" />
+      </svg>
+      <span>{label}</span>
+    </a>
+  );
+}
diff --git a/app/ui/structure/nav-links.tsx b/app/ui/structure/nav-links.tsx
index 0e813a7..490939a 100644
--- a/app/ui/structure/nav-links.tsx
+++ b/app/ui/structure/nav-links.tsx
@@ -29,8 +29,8 @@ const links = [
     icon: AcademicCapIcon,
   },
   {
-    name: 'Trainnings',
-    href: '',
+    name: 'Trainings',
+    href: '/trainings',
     icon: TrophyIcon,
   },
   {
@@ -52,8 +52,7 @@ const links = [
 
 export default function NavLinks() {
   const pathname = usePathname();
-  // Only render links that have a non-empty href (hide under-development links)
-
+  
   return (
     <>
       {links
diff --git a/public/related_products/config.json b/public/related_products/config.json
index 5539dae..5fca4a9 100644
--- a/public/related_products/config.json
+++ b/public/related_products/config.json
@@ -13,4 +13,5 @@
       "src": "cards/related_products/innovalab.png",
       "width": "55%"
     }
+    
   ]
\ No newline at end of file
diff --git a/public/training/clim4health-training.pdf b/public/training/clim4health-training.pdf
new file mode 100644
index 0000000..1715a10
Binary files /dev/null and b/public/training/clim4health-training.pdf differ
diff --git a/public/training/clim4health_for_website.zip b/public/training/clim4health_for_website.zip
new file mode 100644
index 0000000..cc92527
Binary files /dev/null and b/public/training/clim4health_for_website.zip differ
diff --git a/public/training/cube4health-training.pdf b/public/training/cube4health-training.pdf
new file mode 100644
index 0000000..75ad844
Binary files /dev/null and b/public/training/cube4health-training.pdf differ
diff --git a/public/training/data4health-training.pdf b/public/training/data4health-training.pdf
new file mode 100644
index 0000000..bd5904c
Binary files /dev/null and b/public/training/data4health-training.pdf differ