EDU-3945: landing pages redesign

docs/develop/dotnet/core-application.mdx

@@ -2,33 +2,54 @@
 id: core-application
 title: Core application - .NET SDK
 sidebar_label: Core application
-description: Learn how to develop a basic Workflow and Activity Definition using the Temporal .NET SDK, run a Worker Process, and set up Dynamic Workflows and Activities.
 toc_max_heading_level: 4
 keywords:
-  - activity
-  - activity definition
-  - activity execution
-  - dotnet
   - dotnet sdk
-  - worker
+  - temporal sdk
+  - core application
   - workflow
-  - workflow execution
-  - workflow parameters
-  - workflow return values
+  - activity
+  - worker
+description: The Foundations section of the Temporal Developer's guide introduces essential concepts for building and running a Temporal Application using the .NET SDK.
 tags:
   - Activities
+  - Temporal Client
+  - Task Queues
+  - Workers
+  - Workflows
   - .Net SDK
   - Temporal SDKs
 ---
 
-This page shows how to do the following:
-
-- [Develop a basic Workflow Definition](#develop-workflow)
-- [Develop a basic Activity Definition](#develop-activity)
-- [Start an Activity from a Workflow](#activity-execution)
-- [Run a Worker Process](#run-worker-process)
-- [Set a Dynamic Workflow](#set-a-dynamic-workflow)
-- [Set a Dynamic Activity](#set-a-dynamic-activity)
+<div className="topics-covered-section">
+  <h2 className="topics-covered-title">Topics covered in this section</h2>
+  <div className="topics-grid">
+    <a href="#develop-workflow" className="topic-card">
+      <div className="topic-title">Develop a basic Workflow Definition</div>
+      <div className="topic-arrow">→</div>
+    </a>
+    <a href="#develop-activity" className="topic-card">
+      <div className="topic-title">Develop a basic Activity Definition</div>
+      <div className="topic-arrow">→</div>
+    </a>
+    <a href="#activity-execution" className="topic-card">
+      <div className="topic-title">Start an Activity from a Workflow</div>
+      <div className="topic-arrow">→</div>
+    </a>
+    <a href="#run-worker-process" className="topic-card">
+      <div className="topic-title">Run a Worker Process</div>
+      <div className="topic-arrow">→</div>
+    </a>
+    <a href="#set-a-dynamic-workflow" className="topic-card">
+      <div className="topic-title">Set a Dynamic Workflow</div>
+      <div className="topic-arrow">→</div>
+    </a>
+    <a href="#set-a-dynamic-activity" className="topic-card">
+      <div className="topic-title">Set a Dynamic Activity</div>
+      <div className="topic-arrow">→</div>
+    </a>
+  </div>
+</div>
 
 ## Develop a Workflow {#develop-workflow}