diff --git a/main.js b/main.js
new file mode 100644
index 0000000..11d75b5
--- /dev/null
+++ b/main.js
@@ -0,0 +1,43 @@
+// main.js
+// Client-side markdown renderer for "The Fold Within"
+
+document.addEventListener('DOMContentLoaded', async () => {
+  const content = document.querySelector('main');
+  const postsDir = 'posts/';
+  
+  // Load Markdown renderer
+  const rendererScript = document.createElement('script');
+  rendererScript.src = 'https://cdn.jsdelivr.net/npm/marked/marked.min.js';
+  document.head.appendChild(rendererScript);
+
+  rendererScript.onload = () => {
+    // Attach click handlers to all articles
+    document.querySelectorAll('article').forEach(article => {
+      article.addEventListener('click', async () => {
+        const slug = article.querySelector('h3').textContent.trim()
+          .toLowerCase().replace(/\s+/g, '-');
+        loadPost(slug);
+      });
+    });
+  };
+
+  async function loadPost(slug) {
+    try {
+      const res = await fetch(`${postsDir}${slug}.md`);
+      if (!res.ok) throw new Error('Post not found.');
+      const md = await res.text();
+      const html = marked.parse(md);
+
+      content.innerHTML = `
+        <section class="post">
+          <a href="#" id="back">← Back</a>
+          <div class="markdown">${html}</div>
+        </section>
+      `;
+
+      document.getElementById('back').addEventListener('click', () => location.reload());
+    } catch (err) {
+      content.innerHTML = `<p class="error">⚠️ ${err.message}</p>`;
+    }
+  }
+});
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