feat(index): add Luma calendar to hero section

- Replace Ruby logo with Luma calendar embed in hero
- Adjust hero layout from 8/4 to 7/5 columns
- Reduce paragraph text size for better balance

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: mrleeio

index.html

@@ -6,17 +6,18 @@
 <div class="p-5 mb-4 bg-body-tertiary rounded-3">
   <div class="container-fluid">
     <div class="row">
-      <div class="col-lg-8 col-md-12 order-2 order-lg-1 d-flex flex-column pt-2 pb-1">
-        <h3 class="text-center fw-semibold text-lg-start">Vancouver’s Ruby Community</h3>
-        <p class="fs-5 fw-light text-center text-lg-start">Connect, learn, and grow with VanRuby—a thriving community of
+      <div class="col-lg-7 col-md-12 order-2 order-lg-1 d-flex flex-column pt-2 pb-1">
+        <h3 class="text-center fw-semibold text-lg-start">Vancouver's Ruby Community</h3>
+        <p class="fs-6 fw-light text-center text-lg-start">Connect, learn, and grow with VanRuby—a thriving community of
           Ruby enthusiasts and professionals in Vancouver. Whether you are a beginner or a seasoned expert, our events,
           talks, and networking opportunities help you stay ahead in the world of Ruby.</p>
         <a href="https://lu.ma/vanruby" target="_blank"
           class="btn btn-primary btn-lg btn-danger mt-auto align-self-lg-start">Join VanRuby</a>
       </div>
-      <div class="col-lg-4 col-md-12 order-1 order-lg-2 d-flex flex-column justify-content-center mb-4 mb-lg-0">
-        <img src="/assets/images/van_ruby_logo.svg" alt="Jumbotron Logo" height="200px">
-        <span class="text-center fs-1 text fw-bold">VanRuby</span>
+      <div class="col-lg-5 col-md-12 order-1 order-lg-2 d-flex flex-column justify-content-center mb-4 mb-lg-0">
+        <iframe src="https://lu.ma/embed/calendar/cal-ek97jTetLbE3c6t/events?compact=true" width="100%" height="325px"
+          frameborder="0" style="border: 1px solid #bfcbda88; border-radius: 6px;" allowfullscreen="" aria-hidden="false"
+          tabindex="0"></iframe>
       </div>
     </div>
   </div>