docs: clarify macOS install architecture support

Co-authored-by: Alexander Botkin <xerxes@amorphous.me>

Author: steipete

docs/index.html

@@ -44,7 +44,7 @@ <h1 class="title">CodexBar</h1>
         <div class="copy" data-animate="2">
           <div class="badges" aria-label="Highlights">
             <span class="badge">macOS 14+</span>
-            <span class="badge">Apple Silicon + Intel</span>
+            <span class="badge">Universal download</span>
             <span class="badge">Free &amp; open source</span>
             <span class="badge">No passwords stored</span>
           </div>
@@ -57,7 +57,7 @@ <h2>Stay ahead of resets.</h2>
               </p>
             </div>
           </div>
-          <p class="requirement">Requirements: macOS 14+ (Apple Silicon + Intel).</p>
+          <p class="requirement">Requirements: macOS 14+. GitHub downloads support Apple Silicon and Intel; Homebrew cask is Apple Silicon only.</p>
           <div class="cta">
             <a class="btn primary" href="https://github.com/steipete/CodexBar/releases/latest">Download latest</a>
             <a class="btn" href="https://github.com/steipete/CodexBar">View on GitHub</a>
@@ -76,7 +76,7 @@ <h2>Stay ahead of resets.</h2>
           </p>
           <p class="brew-line">Linuxbrew (CLI only): <code>brew install steipete/tap/codexbar</code></p>
           <p class="note">
-            GitHub Releases builds update via Sparkle. Homebrew installs update via <code>brew upgrade</code>.
+            GitHub Releases builds are universal and update via Sparkle. Homebrew installs are Apple Silicon-only and update via <code>brew upgrade</code>.
           </p>
           <script>
             function copyBrew() {