diff --git a/src/pages/index.astro b/src/pages/index.astro
index fa75c22..b529620 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -148,16 +148,16 @@ const featuredPortfolio = portfolio.filter(p => p.data.featured).slice(0, 4);
           const span = 3;
           const surface = (['yellow', 'purple-soft', 'mint', 'soft'] as const)[i];
           return (
-            <a href={`/services/${s.id}`} style="display: block; text-decoration: none; color: inherit;">
-              <BentoTile span={span} surface={surface} eyebrow={s.data.badge} title={s.data.title}>
-                <p class="mega-subtitle">{s.data.subtitle}</p>
-                <div class="mega-objective">
-                  <span class="objective-label">เป้าหมาย:</span>
-                  <span class="objective-value">{s.data.objective}</span>
-                </div>
+            <BentoTile span={span} surface={surface} eyebrow={s.data.badge} title={s.data.title}>
+              <p class="mega-subtitle">{s.data.subtitle}</p>
+              <div class="mega-objective">
+                <span class="objective-label">เป้าหมาย:</span>
+                <span class="objective-value">{s.data.objective}</span>
+              </div>
+              <a href={`/services/${s.id}`} class="tile-link-overlay">
                 <span class="mega-cta">ดูรายละเอียด →</span>
-              </BentoTile>
-            </a>
+              </a>
+            </BentoTile>
           );
         })}
       </BentoGrid>
diff --git a/src/styles/global.css b/src/styles/global.css
index fa217aa..3a235cd 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -843,6 +843,34 @@ p {
   min-height: 380px;
   display: flex;
   flex-direction: column;
+  position: relative;
+  overflow: hidden;
+  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
+}
+
+/* Invisible overlay link — makes the whole tile clickable
+   without breaking the bento-grid layout (no <a> wrapping) */
+.tile-link-overlay {
+  position: absolute;
+  inset: 0;
+  z-index: 1;
+  text-decoration: none;
+  color: inherit;
+  display: flex;
+  align-items: flex-end;
+  padding: 32px;
+}
+.tile-link-overlay .mega-cta {
+  margin-top: 0;
+  font-weight: 700;
+}
+.bento-tile > *:not(.tile-link-overlay) {
+  position: relative;
+  z-index: 2;
+}
+.bento-tile:hover {
+  transform: translateY(-4px);
+  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
 }
 
 /* Make tile-body grow to push CTA to bottom */