Replace custom button with official Open in MATLAB Online badge

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: robertogl

index.html

@@ -105,23 +105,6 @@
             background: rgba(255, 255, 255, 0.35);
         }
 
-        .open-matlab-btn {
-            display: inline-block;
-            margin-top: 0.75rem;
-            padding: 0.5rem 1.2rem;
-            background: #ffffff;
-            border: none;
-            border-radius: 4px;
-            color: var(--accent);
-            text-decoration: none;
-            font-size: 0.9rem;
-            font-weight: 600;
-            transition: background 0.2s;
-        }
-
-        .open-matlab-btn:hover {
-            background: #e8e8e8;
-        }
 
         .intro-box {
             max-width: 100%;
@@ -347,8 +330,8 @@
         <button class="theme-toggle" id="themeToggle" aria-label="Toggle dark mode">&#9790;</button>
         <h1>Research Office Projects</h1>
         <p>From the MathWorks Advanced Research &amp; Technology Office</p>
-        <a class="open-matlab-btn" href="https://matlab.mathworks.com/open/github/v1?repo=mathworks/Research-Office-Projects" target="_blank" rel="noopener">
-            Open in MATLAB Online
+        <a href="https://matlab.mathworks.com/open/github/v1?repo=mathworks/Research-Office-Projects" target="_blank" rel="noopener" style="display:inline-block;margin-top:1rem;">
+            <img src="https://www.mathworks.com/images/responsive/global/open-in-matlab-online.svg" alt="Open in MATLAB Online">
         </a>
     </header>