docs: add sponsors section to website homepage

docs/content/assets/stylesheets/home.css

@@ -360,6 +360,62 @@
   color: var(--text-muted);
 }
 
+/* ============================================
+   Sponsors
+   ============================================ */
+.sponsors {
+  text-align: center;
+}
+
+.sponsors h2 {
+  font-size: 1.75rem;
+  margin: 0 0 0.5rem 0;
+}
+
+.sponsors p {
+  color: var(--text-muted);
+  margin: 0 0 2rem 0;
+}
+
+.sponsors__logos {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: center;
+  align-items: center;
+  gap: 2rem;
+  margin-bottom: 2rem;
+  min-height: 60px;
+}
+
+.sponsors__logos img {
+  max-height: 50px;
+  max-width: 150px;
+  filter: grayscale(100%);
+  opacity: 0.7;
+  transition: all 0.15s ease;
+}
+
+.sponsors__logos img:hover {
+  filter: grayscale(0%);
+  opacity: 1;
+}
+
+[data-md-color-scheme="slate"] .sponsors__logos img {
+  filter: grayscale(100%) brightness(1.5);
+}
+
+[data-md-color-scheme="slate"] .sponsors__logos img:hover {
+  filter: grayscale(0%) brightness(1);
+}
+
+.sponsors__placeholder {
+  color: var(--text-muted);
+  font-size: 0.875rem;
+  padding: 1rem 2rem;
+  border: 2px dashed var(--border);
+  border-radius: 8px;
+}
+
 /* ============================================
    Footer CTA
    ============================================ */

docs/content/index.md

@@ -114,6 +114,18 @@ title: Gunicorn - Python WSGI HTTP Server
   </div>
 </section>
 
+<section class="sponsors">
+  <div class="container">
+    <h2>Sponsors</h2>
+    <p>Gunicorn is maintained thanks to our sponsors.</p>
+    <div class="sponsors__logos">
+      <!-- Sponsor logos will appear here -->
+      <span class="sponsors__placeholder">Your logo here</span>
+    </div>
+    <a class="btn btn--secondary" href="https://github.com/sponsors/benoitc">Become a Sponsor</a>
+  </div>
+</section>
+
 <section class="home-footer">
   <div class="container">
     <h2>Join the Community</h2>