diff --git a/css/style.css b/css/style.css
index f77ff22..360b4bd 100644
--- a/css/style.css
+++ b/css/style.css
@@ -497,3 +497,288 @@ footer {
   color: var(--text-footer);
   box-shadow: 0 -4px 20px rgba(255,20,147,0.1);
 }
+
+/* Chat page styles */
+.chat-config {
+  background: var(--white);
+  border-radius: 16px;
+  padding: 1.5rem;
+  margin-bottom: 1.5rem;
+  box-shadow: var(--shadow-lg);
+  border: 2px solid var(--pink-200);
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+  gap: 1rem;
+  align-items: end;
+}
+
+.config-row {
+  display: flex;
+  flex-direction: column;
+  gap: 0.3rem;
+}
+
+.config-row label {
+  font-size: 0.8rem;
+  font-weight: 700;
+  color: var(--pink-600);
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+}
+
+.config-row input {
+  padding: 0.6rem 0.8rem;
+  border: 2px solid var(--pink-200);
+  border-radius: 10px;
+  font-size: 0.9rem;
+  color: var(--pink-900);
+  background: var(--pink-50);
+  transition: border-color 0.2s, background 0.2s;
+}
+
+.config-row input:focus {
+  outline: none;
+  border-color: var(--pink-400);
+  background: var(--white);
+}
+
+.clear-btn {
+  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
+  color: var(--white);
+  border: none;
+  padding: 0.6rem 1.2rem;
+  border-radius: 10px;
+  cursor: pointer;
+  font-size: 0.85rem;
+  font-weight: 700;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  transition: background 0.2s, transform 0.1s;
+}
+
+.clear-btn:hover {
+  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
+  transform: translateY(-1px);
+}
+
+.chat-messages {
+  background: var(--white);
+  border-radius: 16px;
+  border: 2px solid var(--pink-200);
+  box-shadow: var(--shadow-lg);
+  min-height: 400px;
+  max-height: 60vh;
+  overflow-y: auto;
+  padding: 1.5rem;
+  margin-bottom: 1rem;
+  scroll-behavior: smooth;
+}
+
+.message {
+  display: flex;
+  gap: 0.8rem;
+  margin-bottom: 1.2rem;
+  animation: messageIn 0.3s ease-out;
+}
+
+@keyframes messageIn {
+  from { opacity: 0; transform: translateY(10px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+.user-message {
+  flex-direction: row-reverse;
+}
+
+.message-avatar {
+  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
+  color: var(--white);
+  width: 36px;
+  height: 36px;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 0.7rem;
+  font-weight: 800;
+  flex-shrink: 0;
+  text-transform: uppercase;
+}
+
+.assistant-message .message-avatar {
+  background: linear-gradient(135deg, var(--pink-600), var(--pink-700));
+}
+
+.message-bubble {
+  max-width: 75%;
+  padding: 0.8rem 1.2rem;
+  border-radius: 18px;
+}
+
+.user-message .message-bubble {
+  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
+  color: var(--white);
+  border-bottom-right-radius: 6px;
+}
+
+.assistant-message .message-bubble {
+  background: var(--pink-50);
+  border: 2px solid var(--pink-200);
+  color: var(--pink-900);
+  border-bottom-left-radius: 6px;
+}
+
+.message-content {
+  font-size: 0.95rem;
+  line-height: 1.5;
+  word-wrap: break-word;
+}
+
+.message-content.streaming::after {
+  content: '▊';
+  animation: blink 0.8s infinite;
+  color: var(--pink-500);
+}
+
+@keyframes blink {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0; }
+}
+
+.chat-input-area {
+  display: flex;
+  gap: 0.8rem;
+  background: var(--white);
+  border-radius: 16px;
+  padding: 1rem 1.2rem;
+  box-shadow: var(--shadow-lg);
+  border: 2px solid var(--pink-200);
+}
+
+.chat-input-area textarea {
+  flex: 1;
+  border: none;
+  background: transparent;
+  font-size: 0.95rem;
+  color: var(--pink-900);
+  font-family: inherit;
+  resize: none;
+  outline: none;
+  line-height: 1.5;
+}
+
+.chat-input-area textarea::placeholder {
+  color: var(--pink-300);
+}
+
+.send-btn {
+  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
+  color: var(--white);
+  border: none;
+  padding: 0.6rem 1.5rem;
+  border-radius: 12px;
+  cursor: pointer;
+  font-size: 0.95rem;
+  font-weight: 700;
+  transition: background 0.2s, transform 0.1s, opacity 0.2s;
+  white-space: nowrap;
+}
+
+.send-btn:hover:not(:disabled) {
+  background: linear-gradient(135deg, var(--pink-600), var(--pink-700));
+  transform: translateY(-1px);
+}
+
+.send-btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+/* Dark mode chat styles */
+[data-theme="dark"] .chat-config {
+  background: var(--bg-card);
+  border-color: var(--border-primary);
+  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
+}
+
+[data-theme="dark"] .config-row label {
+  color: var(--text-heading-strong);
+}
+
+[data-theme="dark"] .config-row input {
+  background: var(--bg-primary);
+  border-color: var(--border-primary);
+  color: var(--text-primary);
+}
+
+[data-theme="dark"] .config-row input:focus {
+  border-color: var(--border-accent);
+  background: var(--bg-secondary);
+}
+
+[data-theme="dark"] .clear-btn {
+  background: linear-gradient(135deg, var(--pink-600), #0f3460);
+}
+
+[data-theme="dark"] .clear-btn:hover {
+  background: linear-gradient(135deg, var(--pink-500), #1a1a3e);
+}
+
+[data-theme="dark"] .chat-messages {
+  background: var(--bg-card);
+  border-color: var(--border-primary);
+  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
+}
+
+[data-theme="dark"] .message-avatar {
+  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
+}
+
+[data-theme="dark"] .assistant-message .message-avatar {
+  background: linear-gradient(135deg, #0f3460, #1a1a3e);
+}
+
+[data-theme="dark"] .user-message .message-bubble {
+  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
+  color: var(--white);
+}
+
+[data-theme="dark"] .assistant-message .message-bubble {
+  background: var(--bg-primary);
+  border-color: var(--border-primary);
+  color: var(--text-primary);
+}
+
+[data-theme="dark"] .message-content {
+  color: var(--text-primary);
+}
+
+[data-theme="dark"] .user-message .message-content {
+  color: var(--white);
+}
+
+[data-theme="dark"] .message-content.streaming::after {
+  color: var(--pink-400);
+}
+
+[data-theme="dark"] .chat-input-area {
+  background: var(--bg-card);
+  border-color: var(--border-primary);
+  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
+}
+
+[data-theme="dark"] .chat-input-area textarea {
+  color: var(--text-primary);
+}
+
+[data-theme="dark"] .chat-input-area textarea::placeholder {
+  color: var(--text-secondary);
+}
+
+[data-theme="dark"] .send-btn {
+  background: linear-gradient(135deg, var(--pink-600), #0f3460);
+}
+
+[data-theme="dark"] .send-btn:hover:not(:disabled) {
+  background: linear-gradient(135deg, var(--pink-500), #1a1a3e);
+}
diff --git a/index.html b/index.html
index 60ab4e8..f471ae5 100644
--- a/index.html
+++ b/index.html
@@ -10,14 +10,15 @@
 
 <nav>
   <div class="nav-inner">
-    <a href="index.html" class="nav-brand active">AI Cheat Sheet</a>
+    <a href="/" class="nav-brand active">AI Cheat Sheet</a>
     <div class="nav-links">
-      <a href="pages/terminology.html">Terminology</a>
-      <a href="pages/techniques.html">Techniques</a>
-      <a href="pages/use-cases.html">Use Cases</a>
-      <a href="pages/model-types.html">Model Types</a>
-      <a href="pages/prompts.html">Prompt Guide</a>
-      <a href="pages/math.html">Math & Concepts</a>
+      <a href="/pages/terminology.html">Terminology</a>
+      <a href="/pages/techniques.html">Techniques</a>
+      <a href="/pages/use-cases.html">Use Cases</a>
+      <a href="/pages/model-types.html">Model Types</a>
+      <a href="/pages/prompts.html">Prompt Guide</a>
+      <a href="/pages/math.html">Math & Concepts</a>
+      <a href="/pages/chat.html">Chat</a>
     </div>
     <button class="dark-toggle" id="darkToggle" aria-label="Toggle dark mode">🌙</button>
   </div>
diff --git a/pages/chat.html b/pages/chat.html
new file mode 100644
index 0000000..e7c72ef
--- /dev/null
+++ b/pages/chat.html
@@ -0,0 +1,305 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>AI Chat - AI Cheat Sheet</title>
+  <link rel="stylesheet" href="../css/style.css">
+</head>
+<body>
+
+<nav>
+  <div class="nav-inner">
+    <a href="index.html" class="nav-brand">AI Cheat Sheet</a>
+    <div class="nav-links">
+      <a href="/pages/terminology.html">Terminology</a>
+      <a href="/pages/techniques.html">Techniques</a>
+      <a href="/pages/use-cases.html">Use Cases</a>
+      <a href="/pages/model-types.html">Model Types</a>
+      <a href="/pages/prompts.html">Prompt Guide</a>
+      <a href="/pages/math.html">Math & Concepts</a>
+      <a href="/pages/chat.html" class="active">Chat</a>
+    </div>
+    <button class="dark-toggle" id="darkToggle" aria-label="Toggle dark mode">🌙</button>
+  </div>
+</nav>
+
+<script>
+(function(){
+  var btn = document.getElementById('darkToggle');
+  var saved = localStorage.getItem('theme');
+  if(saved === 'dark' || (!saved && window.matchMedia('(prefers-color-scheme: dark)').matches)){
+    document.documentElement.setAttribute('data-theme','dark');
+    btn.textContent = '☀️';
+  }
+  btn.addEventListener('click', function(){
+    var isDark = document.documentElement.getAttribute('data-theme') === 'dark';
+    if(isDark){
+      document.documentElement.removeAttribute('data-theme');
+      btn.textContent = '🌙';
+      localStorage.setItem('theme','light');
+    } else {
+      document.documentElement.setAttribute('data-theme','dark');
+      btn.textContent = '☀️';
+      localStorage.setItem('theme','dark');
+    }
+  });
+})();
+</script>
+
+<div class="hero">
+  <h1>AI Chat</h1>
+  <p>Chat with an LLM powered by your chosen model.</p>
+</div>
+
+<div class="container">
+  <div class="chat-config">
+    <div class="config-row">
+      <label for="apiUrl">API Endpoint</label>
+      <input type="text" id="apiUrl" value="https://llama-instruct.reeselink.com/v1">
+    </div>
+    <div class="config-row">
+      <label for="apiToken">API Token</label>
+      <input type="password" id="apiToken" placeholder="Enter your API token">
+    </div>
+    <div class="config-row">
+      <label for="modelName">Model</label>
+      <input type="text" id="modelName" value="instruct">
+    </div>
+    <div class="config-row">
+      <button id="clearBtn" class="clear-btn">Clear Chat</button>
+    </div>
+  </div>
+
+  <div class="chat-messages" id="chatMessages">
+    <div class="message assistant-message">
+      <div class="message-bubble">
+        <p>Hello! Enter your API token and model name, then start typing your message below.</p>
+      </div>
+    </div>
+  </div>
+
+  <div class="chat-input-area">
+    <textarea id="userInput" placeholder="Type your message..." rows="1"></textarea>
+    <button id="sendBtn" class="send-btn">Send</button>
+  </div>
+</div>
+
+<footer>AI Cheat Sheet &mdash; A learning reference for artificial intelligence</footer>
+
+<script>
+(function(){
+  var chatMessages = document.getElementById('chatMessages');
+  var userInput = document.getElementById('userInput');
+  var sendBtn = document.getElementById('sendBtn');
+  var clearBtn = document.getElementById('clearBtn');
+   var apiUrlInput = document.getElementById('apiUrl');
+    var apiTokenInput = document.getElementById('apiToken');
+    var modelNameInput = document.getElementById('modelName');
+
+    // Restore saved settings
+    var savedToken = localStorage.getItem('apiToken');
+    if(savedToken) apiTokenInput.value = savedToken;
+    var savedModel = localStorage.getItem('modelName');
+    if(savedModel) modelNameInput.value = savedModel;
+    var savedUrl = localStorage.getItem('apiUrl');
+    if(savedUrl) apiUrlInput.value = savedUrl;
+
+  var conversationHistory = [];
+  var isStreaming = false;
+
+  function addMessage(role, content) {
+    var msgDiv = document.createElement('div');
+    msgDiv.className = 'message ' + (role === 'user' ? 'user-message' : 'assistant-message');
+
+    var avatar = document.createElement('div');
+    avatar.className = 'message-avatar';
+    avatar.textContent = role === 'user' ? 'You' : 'AI';
+
+    var bubble = document.createElement('div');
+    bubble.className = 'message-bubble';
+
+    var p = document.createElement('p');
+    p.className = 'message-content';
+    p.textContent = content;
+    bubble.appendChild(p);
+
+    msgDiv.appendChild(avatar);
+    msgDiv.appendChild(bubble);
+    chatMessages.appendChild(msgDiv);
+    chatMessages.scrollTop = chatMessages.scrollHeight;
+
+    return p;
+  }
+
+  function addStreamingMessage() {
+    var msgDiv = document.createElement('div');
+    msgDiv.className = 'message assistant-message';
+    msgDiv.id = 'streaming-msg';
+
+    var avatar = document.createElement('div');
+    avatar.className = 'message-avatar';
+    avatar.textContent = 'AI';
+
+    var bubble = document.createElement('div');
+    bubble.className = 'message-bubble';
+
+    var p = document.createElement('p');
+    p.className = 'message-content streaming';
+    p.textContent = '';
+
+    bubble.appendChild(p);
+    msgDiv.appendChild(avatar);
+    msgDiv.appendChild(bubble);
+    chatMessages.appendChild(msgDiv);
+    chatMessages.scrollTop = chatMessages.scrollHeight;
+
+    return p;
+  }
+
+  function setLoading(loading) {
+    isStreaming = loading;
+    sendBtn.disabled = loading;
+    sendBtn.textContent = loading ? '...' : 'Send';
+    userInput.disabled = loading;
+    if(!loading) {
+      userInput.focus();
+    }
+  }
+
+  function sendMessage() {
+    if(isStreaming) return;
+
+    var text = userInput.value.trim();
+    if(!text) return;
+
+    var model = modelNameInput.value.trim();
+    if(!model) {
+      alert('Please enter a model name.');
+      modelNameInput.focus();
+      return;
+    }
+
+    addMessage('user', text);
+    conversationHistory.push({ role: 'user', content: text });
+    userInput.value = '';
+    userInput.style.height = 'auto';
+    setLoading(true);
+
+  var apiEndpoint = apiUrlInput.value.trim().replace(/\/+$/, '');
+      var apiToken = apiTokenInput.value.trim();
+
+      var streamContent = '';
+      var contentEl = addStreamingMessage();
+
+      var headers = { 'Content-Type': 'application/json' };
+      if(apiToken) {
+        headers['Authorization'] = 'Bearer ' + apiToken;
+      }
+
+      fetch(apiEndpoint + '/chat/completions', {
+        method: 'POST',
+        headers: headers,
+      body: JSON.stringify({
+        messages: conversationHistory,
+        model: model,
+        stream: true
+      })
+    })
+    .then(function(response) {
+      if(!response.ok) {
+        throw new Error('API error: ' + response.status + ' ' + response.statusText);
+      }
+      var reader = response.body.getReader();
+      var decoder = new TextDecoder();
+      var buffer = '';
+
+      function read() {
+        return reader.read().then(function({ done, value }) {
+          if(done) {
+            setLoading(false);
+            contentEl.classList.remove('streaming');
+            return;
+          }
+          buffer += decoder.decode(value, { stream: true });
+          var lines = buffer.split('\n');
+          buffer = lines.pop();
+
+          for(var i = 0; i < lines.length; i++) {
+            var line = lines[i].trim();
+            if(line.startsWith('data: ')) {
+              var data = line.slice(6);
+              if(data === '[DONE]') {
+                setLoading(false);
+                contentEl.classList.remove('streaming');
+                return;
+              }
+              try {
+                var json = JSON.parse(data);
+                var delta = json.choices && json.choices[0] && json.choices[0].delta;
+                if(delta && delta.content) {
+                  streamContent += delta.content;
+                  contentEl.textContent = streamContent;
+                  chatMessages.scrollTop = chatMessages.scrollHeight;
+                }
+              } catch(e) {
+                // skip malformed JSON
+              }
+            }
+          }
+          return read();
+        });
+      }
+      return read();
+    })
+      .catch(function(err) {
+        setLoading(false);
+        contentEl.classList.remove('streaming');
+        contentEl.textContent = 'Error: ' + err.message;
+        contentEl.style.color = 'var(--pink-700)';
+        // Remove failed message from history
+        conversationHistory.pop();
+      });
+  }
+
+  sendBtn.addEventListener('click', sendMessage);
+
+  userInput.addEventListener('keydown', function(e) {
+    if(e.key === 'Enter' && !e.shiftKey) {
+      e.preventDefault();
+      sendMessage();
+    }
+  });
+
+  userInput.addEventListener('input', function() {
+    this.style.height = 'auto';
+    this.style.height = Math.min(this.scrollHeight, 200) + 'px';
+  });
+
+  clearBtn.addEventListener('click', function() {
+    conversationHistory = [];
+    chatMessages.innerHTML = '';
+    var welcomeMsg = document.createElement('div');
+    welcomeMsg.className = 'message assistant-message';
+    welcomeMsg.innerHTML = '<div class="message-avatar">AI</div><div class="message-bubble"><p>Hello! Chat cleared. How can I help you?</p></div>';
+    chatMessages.appendChild(welcomeMsg);
+  });
+
+  // Focus input on page load
+ userInput.focus();
+
+  // Save settings on change
+  apiTokenInput.addEventListener('change', function() {
+    localStorage.setItem('apiToken', this.value);
+  });
+  modelNameInput.addEventListener('change', function() {
+    localStorage.setItem('modelName', this.value);
+  });
+  apiUrlInput.addEventListener('change', function() {
+    localStorage.setItem('apiUrl', this.value);
+  });
+})();
+</script>
+
+</body>
+</html>
diff --git a/pages/math.html b/pages/math.html
index 7982a18..6f10dbb 100644
--- a/pages/math.html
+++ b/pages/math.html
@@ -10,14 +10,15 @@
 
 <nav>
   <div class="nav-inner">
-    <a href="../index.html" class="nav-brand">AI Cheat Sheet</a>
+    <a href="/" class="nav-brand">AI Cheat Sheet</a>
     <div class="nav-links">
-      <a href="terminology.html">Terminology</a>
-      <a href="techniques.html">Techniques</a>
-      <a href="use-cases.html">Use Cases</a>
-      <a href="model-types.html">Model Types</a>
-      <a href="prompts.html">Prompt Guide</a>
-      <a href="math.html" class="active">Math & Concepts</a>
+      <a href="/pages/terminology.html">Terminology</a>
+      <a href="/pages/techniques.html">Techniques</a>
+      <a href="/pages/use-cases.html">Use Cases</a>
+      <a href="/pages/model-types.html">Model Types</a>
+      <a href="/pages/prompts.html">Prompt Guide</a>
+      <a href="/pages/math.html" class="active">Math & Concepts</a>
+      <a href="/pages/chat.html">Chat</a>
     </div>
     <button class="dark-toggle" id="darkToggle" aria-label="Toggle dark mode">🌙</button>
   </div>
diff --git a/pages/model-types.html b/pages/model-types.html
index 5d31a18..6d37816 100644
--- a/pages/model-types.html
+++ b/pages/model-types.html
@@ -10,14 +10,15 @@
 
 <nav>
   <div class="nav-inner">
-    <a href="../index.html" class="nav-brand">AI Cheat Sheet</a>
+    <a href="/" class="nav-brand">AI Cheat Sheet</a>
     <div class="nav-links">
-      <a href="terminology.html">Terminology</a>
-      <a href="techniques.html">Techniques</a>
-      <a href="use-cases.html">Use Cases</a>
-      <a href="model-types.html" class="active">Model Types</a>
-      <a href="prompts.html">Prompt Guide</a>
-      <a href="math.html">Math & Concepts</a>
+      <a href="/pages/terminology.html">Terminology</a>
+      <a href="/pages/techniques.html">Techniques</a>
+      <a href="/pages/use-cases.html">Use Cases</a>
+      <a href="/pages/model-types.html" class="active">Model Types</a>
+      <a href="/pages/prompts.html">Prompt Guide</a>
+      <a href="/pages/math.html">Math & Concepts</a>
+      <a href="/pages/chat.html">Chat</a>
     </div>
     <button class="dark-toggle" id="darkToggle" aria-label="Toggle dark mode">🌙</button>
   </div>
diff --git a/pages/prompts.html b/pages/prompts.html
index 1521a26..abd86f2 100644
--- a/pages/prompts.html
+++ b/pages/prompts.html
@@ -10,14 +10,15 @@
 
 <nav>
   <div class="nav-inner">
-    <a href="../index.html" class="nav-brand">AI Cheat Sheet</a>
+    <a href="/" class="nav-brand">AI Cheat Sheet</a>
     <div class="nav-links">
-      <a href="terminology.html">Terminology</a>
-      <a href="techniques.html">Techniques</a>
-      <a href="use-cases.html">Use Cases</a>
-      <a href="model-types.html">Model Types</a>
-      <a href="prompts.html" class="active">Prompt Guide</a>
-      <a href="math.html">Math & Concepts</a>
+      <a href="/pages/terminology.html">Terminology</a>
+      <a href="/pages/techniques.html">Techniques</a>
+      <a href="/pages/use-cases.html">Use Cases</a>
+      <a href="/pages/model-types.html">Model Types</a>
+      <a href="/pages/prompts.html" class="active">Prompt Guide</a>
+      <a href="/pages/math.html">Math & Concepts</a>
+      <a href="/pages/chat.html">Chat</a>
     </div>
     <button class="dark-toggle" id="darkToggle" aria-label="Toggle dark mode">🌙</button>
   </div>
diff --git a/pages/techniques.html b/pages/techniques.html
index 3f7b214..5b0d925 100644
--- a/pages/techniques.html
+++ b/pages/techniques.html
@@ -10,14 +10,15 @@
 
 <nav>
   <div class="nav-inner">
-    <a href="../index.html" class="nav-brand">AI Cheat Sheet</a>
+    <a href="/" class="nav-brand">AI Cheat Sheet</a>
     <div class="nav-links">
-      <a href="terminology.html">Terminology</a>
-      <a href="techniques.html" class="active">Techniques</a>
-      <a href="use-cases.html">Use Cases</a>
-      <a href="model-types.html">Model Types</a>
-      <a href="prompts.html">Prompt Guide</a>
-      <a href="math.html">Math & Concepts</a>
+      <a href="/pages/terminology.html">Terminology</a>
+      <a href="/pages/techniques.html" class="active">Techniques</a>
+      <a href="/pages/use-cases.html">Use Cases</a>
+      <a href="/pages/model-types.html">Model Types</a>
+      <a href="/pages/prompts.html">Prompt Guide</a>
+      <a href="/pages/math.html">Math & Concepts</a>
+      <a href="/pages/chat.html">Chat</a>
     </div>
     <button class="dark-toggle" id="darkToggle" aria-label="Toggle dark mode">🌙</button>
   </div>
diff --git a/pages/terminology.html b/pages/terminology.html
index 6a4ee36..0433fdd 100644
--- a/pages/terminology.html
+++ b/pages/terminology.html
@@ -10,14 +10,15 @@
 
 <nav>
   <div class="nav-inner">
-    <a href="../index.html" class="nav-brand">AI Cheat Sheet</a>
+    <a href="/" class="nav-brand">AI Cheat Sheet</a>
     <div class="nav-links">
-      <a href="terminology.html" class="active">Terminology</a>
-      <a href="techniques.html">Techniques</a>
-      <a href="use-cases.html">Use Cases</a>
-      <a href="model-types.html">Model Types</a>
-      <a href="prompts.html">Prompt Guide</a>
-      <a href="math.html">Math & Concepts</a>
+      <a href="/pages/terminology.html" class="active">Terminology</a>
+      <a href="/pages/techniques.html">Techniques</a>
+      <a href="/pages/use-cases.html">Use Cases</a>
+      <a href="/pages/model-types.html">Model Types</a>
+      <a href="/pages/prompts.html">Prompt Guide</a>
+      <a href="/pages/math.html">Math & Concepts</a>
+      <a href="/pages/chat.html">Chat</a>
     </div>
     <button class="dark-toggle" id="darkToggle" aria-label="Toggle dark mode">🌙</button>
   </div>
diff --git a/pages/use-cases.html b/pages/use-cases.html
index 906bba9..a0e7faf 100644
--- a/pages/use-cases.html
+++ b/pages/use-cases.html
@@ -10,14 +10,15 @@
 
 <nav>
   <div class="nav-inner">
-    <a href="../index.html" class="nav-brand">AI Cheat Sheet</a>
+    <a href="/" class="nav-brand">AI Cheat Sheet</a>
     <div class="nav-links">
-      <a href="terminology.html">Terminology</a>
-      <a href="techniques.html">Techniques</a>
-      <a href="use-cases.html" class="active">Use Cases</a>
-      <a href="model-types.html">Model Types</a>
-      <a href="prompts.html">Prompt Guide</a>
-      <a href="math.html">Math & Concepts</a>
+      <a href="/pages/terminology.html">Terminology</a>
+      <a href="/pages/techniques.html">Techniques</a>
+      <a href="/pages/use-cases.html" class="active">Use Cases</a>
+      <a href="/pages/model-types.html">Model Types</a>
+      <a href="/pages/prompts.html">Prompt Guide</a>
+      <a href="/pages/math.html">Math & Concepts</a>
+      <a href="/pages/chat.html">Chat</a>
     </div>
     <button class="dark-toggle" id="darkToggle" aria-label="Toggle dark mode">🌙</button>
   </div>