fix(docs): compact homepage layout to fit in single viewport

Reduce hero padding and font sizes, center tagline and action buttons,
switch feature cards from 2-column to 3-column grid, and tighten all
section spacing so the entire docs homepage is visible without scrolling.

apps/docs/.vitepress/theme/github-stars.css

@@ -16,10 +16,45 @@
   order: 2;
 }
 
+/* Compact hero: reduce padding so entire page fits in one viewport */
+.VPHero {
+  padding-top: calc(var(--vp-nav-height) + 20px) !important;
+  padding-bottom: 12px !important;
+  text-align: center;
+}
+
+.VPHero .main {
+  max-width: 100%;
+}
+
+.VPHero .main .name,
+.VPHero .main .name .clip {
+  font-size: 28px;
+  line-height: 1.2;
+}
+
+.VPHero .main .text {
+  font-size: 32px;
+  line-height: 1.2;
+}
+
+.VPHero .main .tagline {
+  font-size: 15px;
+  line-height: 1.4;
+  padding-top: 4px;
+  max-width: 560px;
+  margin: 0 auto;
+}
+
+.VPHero .main .actions {
+  padding-top: 12px;
+  justify-content: center;
+}
+
 /* Quick start command banner on homepage */
 .quick-start-banner {
   max-width: 960px;
-  margin: 0 auto 48px;
+  margin: 0 auto 12px;
   padding: 0 24px;
   text-align: center;
 }
@@ -29,6 +64,66 @@
   border-radius: 10px;
 }
 
+/* Compact 3-column feature grid */
+.VPHomeFeatures {
+  padding-top: 0 !important;
+  padding-bottom: 8px !important;
+}
+
+.VPFeatures .container {
+  max-width: 1100px;
+}
+
+.VPFeatures .items {
+  display: grid !important;
+  grid-template-columns: repeat(3, 1fr) !important;
+  gap: 10px !important;
+}
+
+.VPFeatures .item.grid-6 {
+  width: 100%;
+  padding: 0;
+}
+
+.VPFeature {
+  padding: 16px;
+}
+
+.VPFeature .title {
+  font-size: 13px;
+  line-height: 1.3;
+}
+
+.VPFeature .details {
+  font-size: 11.5px;
+  line-height: 1.4;
+}
+
+.VPFooter {
+  padding: 12px 24px;
+}
+
+.VPFooter .message,
+.VPFooter .copyright {
+  font-size: 12px;
+  line-height: 1.4;
+}
+
+@media (max-width: 768px) {
+  .VPFeatures .items {
+    grid-template-columns: 1fr !important;
+  }
+
+  .VPHero .main .name,
+  .VPHero .main .name .clip {
+    font-size: 24px;
+  }
+
+  .VPHero .main .text {
+    font-size: 26px;
+  }
+}
+
 /* Hide the three-dots extra menu - its contents are now in the navbar directly */
 .VPNavBarExtra {
   display: none !important;