diff --git a/app/pages/[...package].vue b/app/pages/[...package].vue
index c5bbe36522..d86fc5f73f 100644
--- a/app/pages/[...package].vue
+++ b/app/pages/[...package].vue
@@ -19,6 +19,27 @@ definePageMeta({
 
 const router = useRouter()
 
+const header = useTemplateRef('header')
+const isHeaderPinned = shallowRef(false)
+
+function checkHeaderPosition() {
+  const el = header.value
+  if (!el) return
+
+  const style = getComputedStyle(el)
+  const top = parseFloat(style.top) || 0
+  const rect = el.getBoundingClientRect()
+
+  isHeaderPinned.value = Math.abs(rect.top - top) < 1
+}
+
+useEventListener('scroll', checkHeaderPosition, { passive: true })
+useEventListener('resize', checkHeaderPosition)
+
+onMounted(() => {
+  checkHeaderPosition()
+})
+
 const { packageName, requestedVersion, orgName } = usePackageRoute()
 const selectedPM = useSelectedPackageManager()
 const activePmId = computed(() => selectedPM.value ?? 'npm')
@@ -389,153 +410,157 @@ function handleClick(event: MouseEvent) {
 </script>
 
 <template>
-  <main class="container flex-1 w-full py-8 xl:py-12">
+  <main class="container flex-1 w-full py-8">
     <PackageSkeleton v-if="status === 'pending'" />
 
     <article v-else-if="status === 'success' && pkg" class="package-page">
       <!-- Package header -->
-      <header class="area-header border-b border-border">
-        <div class="mb-4">
-          <!-- Package name and version -->
-          <div class="flex items-baseline gap-2 mb-1.5 sm:gap-3 sm:mb-2 flex-wrap min-w-0">
-            <h1
-              class="font-mono text-2xl sm:text-3xl font-medium min-w-0 break-words"
-              :title="pkg.name"
+      <header
+        class="area-header sticky top-14 z-1 bg-[--bg] py-2 border-border"
+        ref="header"
+        :class="{ 'border-b': isHeaderPinned }"
+      >
+        <!-- Package name and version -->
+        <div class="flex items-baseline gap-2 sm:gap-3 flex-wrap min-w-0">
+          <h1
+            class="font-mono text-2xl sm:text-3xl font-medium min-w-0 break-words"
+            :title="pkg.name"
+          >
+            <NuxtLink
+              v-if="orgName"
+              :to="{ name: 'org', params: { org: orgName } }"
+              class="text-fg-muted hover:text-fg transition-colors duration-200"
+              >@{{ orgName }}</NuxtLink
+            ><span v-if="orgName">/</span>
+            <TooltipAnnounce :text="$t('common.copied')" :isVisible="copiedPkgName">
+              <button
+                @click="copyPkgName()"
+                aria-describedby="copy-pkg-name"
+                class="cursor-copy active:scale-95 transition-transform"
+              >
+                {{ orgName ? pkg.name.replace(`@${orgName}/`, '') : pkg.name }}
+              </button>
+            </TooltipAnnounce>
+          </h1>
+
+          <span id="copy-pkg-name" class="sr-only">{{ $t('package.copy_name') }}</span>
+          <span
+            v-if="displayVersion"
+            class="inline-flex items-baseline gap-1.5 font-mono text-base sm:text-lg text-fg-muted shrink-0"
+          >
+            <!-- Version resolution indicator (e.g., "latest → 4.2.0") -->
+            <template v-if="resolvedVersion !== requestedVersion">
+              <span class="font-mono text-fg-muted text-sm">{{ requestedVersion }}</span>
+              <span class="i-carbon:arrow-right rtl-flip w-3 h-3" aria-hidden="true" />
+            </template>
+
+            <NuxtLink
+              v-if="resolvedVersion !== requestedVersion"
+              :to="`/${pkg.name}/v/${displayVersion.version}`"
+              :title="$t('package.view_permalink')"
+              >{{ displayVersion.version }}</NuxtLink
             >
-              <NuxtLink
-                v-if="orgName"
-                :to="{ name: 'org', params: { org: orgName } }"
-                class="text-fg-muted hover:text-fg transition-colors duration-200"
-                >@{{ orgName }}</NuxtLink
-              ><span v-if="orgName">/</span>
-              <TooltipAnnounce :text="$t('common.copied')" :isVisible="copiedPkgName">
-                <button
-                  @click="copyPkgName()"
-                  aria-describedby="copy-pkg-name"
-                  class="cursor-copy ms-1 mt-1 active:scale-95 transition-transform"
-                >
-                  {{ orgName ? pkg.name.replace(`@${orgName}/`, '') : pkg.name }}
-                </button>
-              </TooltipAnnounce>
-            </h1>
+            <span v-else>v{{ displayVersion.version }}</span>
 
-            <span id="copy-pkg-name" class="sr-only">{{ $t('package.copy_name') }}</span>
+            <a
+              v-if="hasProvenance(displayVersion)"
+              :href="`https://www.npmjs.com/package/${pkg.name}/v/${displayVersion.version}#provenance`"
+              target="_blank"
+              rel="noopener noreferrer"
+              class="inline-flex items-center justify-center gap-1.5 text-fg-muted hover:text-fg transition-colors duration-200 min-w-6 min-h-6"
+              :title="$t('package.verified_provenance')"
+            >
+              <span class="i-solar:shield-check-outline w-3.5 h-3.5 shrink-0" aria-hidden="true" />
+            </a>
             <span
-              v-if="displayVersion"
-              class="inline-flex items-baseline gap-1.5 font-mono text-base sm:text-lg text-fg-muted shrink-0"
+              v-if="
+                requestedVersion &&
+                latestVersion &&
+                displayVersion.version !== latestVersion.version
+              "
+              class="text-fg-subtle text-sm shrink-0"
+              >{{ $t('package.not_latest') }}</span
             >
-              <!-- Version resolution indicator (e.g., "latest → 4.2.0") -->
-              <template v-if="resolvedVersion !== requestedVersion">
-                <span class="font-mono text-fg-muted text-sm">{{ requestedVersion }}</span>
-                <span class="i-carbon:arrow-right rtl-flip w-3 h-3" aria-hidden="true" />
-              </template>
+          </span>
 
-              <NuxtLink
-                v-if="resolvedVersion !== requestedVersion"
-                :to="`/${pkg.name}/v/${displayVersion.version}`"
-                :title="$t('package.view_permalink')"
-                >{{ displayVersion.version }}</NuxtLink
-              >
-              <span v-else>v{{ displayVersion.version }}</span>
-
-              <a
-                v-if="hasProvenance(displayVersion)"
-                :href="`https://www.npmjs.com/package/${pkg.name}/v/${displayVersion.version}#provenance`"
-                target="_blank"
-                rel="noopener noreferrer"
-                class="inline-flex items-center justify-center gap-1.5 text-fg-muted hover:text-fg transition-colors duration-200 min-w-6 min-h-6"
-                :title="$t('package.verified_provenance')"
-              >
-                <span
-                  class="i-solar:shield-check-outline w-3.5 h-3.5 shrink-0"
-                  aria-hidden="true"
-                />
-              </a>
-              <span
-                v-if="
-                  requestedVersion &&
-                  latestVersion &&
-                  displayVersion.version !== latestVersion.version
-                "
-                class="text-fg-subtle text-sm shrink-0"
-                >{{ $t('package.not_latest') }}</span
-              >
-            </span>
-
-            <!-- Package metrics (module format, types) -->
-            <ClientOnly>
-              <PackageMetricsBadges
-                v-if="displayVersion"
-                :package-name="pkg.name"
-                :version="displayVersion.version"
-                :is-binary="isBinaryOnly"
-                class="self-baseline ms-1 sm:ms-2"
-              />
-              <template #fallback>
-                <ul class="flex items-center gap-1.5 self-baseline ms-1 sm:ms-2">
-                  <li class="skeleton w-8 h-5 rounded" />
-                  <li class="skeleton w-12 h-5 rounded" />
-                </ul>
-              </template>
-            </ClientOnly>
-
-            <!-- Internal navigation: Docs + Code + Compare (hidden on mobile, shown in external links instead) -->
-            <nav
+          <!-- Package metrics (module format, types) -->
+          <ClientOnly>
+            <PackageMetricsBadges
               v-if="displayVersion"
-              :aria-label="$t('package.navigation')"
-              class="hidden sm:flex items-center gap-0.5 p-0.5 bg-bg-subtle border border-border-subtle rounded-md shrink-0 ms-auto self-center"
+              :package-name="pkg.name"
+              :version="displayVersion.version"
+              :is-binary="isBinaryOnly"
+              class="self-baseline ms-1 sm:ms-2"
+            />
+            <template #fallback>
+              <ul class="flex items-center gap-1.5 self-baseline ms-1 sm:ms-2">
+                <li class="skeleton w-8 h-5 rounded" />
+                <li class="skeleton w-12 h-5 rounded" />
+              </ul>
+            </template>
+          </ClientOnly>
+
+          <!-- Internal navigation: Docs + Code + Compare (hidden on mobile, shown in external links instead) -->
+          <nav
+            v-if="displayVersion"
+            :aria-label="$t('package.navigation')"
+            class="hidden sm:flex items-center gap-0.5 p-0.5 bg-bg-subtle border border-border-subtle rounded-md shrink-0 ms-auto self-center"
+          >
+            <NuxtLink
+              v-if="docsLink"
+              :to="docsLink"
+              class="px-2 py-1.5 font-mono text-xs rounded transition-colors duration-150 border border-transparent text-fg-subtle hover:text-fg hover:bg-bg hover:shadow hover:border-border focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-fg/50 inline-flex items-center gap-1.5"
+              aria-keyshortcuts="d"
             >
-              <NuxtLink
-                v-if="docsLink"
-                :to="docsLink"
-                class="px-2 py-1.5 font-mono text-xs rounded transition-colors duration-150 border border-transparent text-fg-subtle hover:text-fg hover:bg-bg hover:shadow hover:border-border focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-fg/50 inline-flex items-center gap-1.5"
-                aria-keyshortcuts="d"
+              <span class="i-carbon:document w-3 h-3" aria-hidden="true" />
+              {{ $t('package.links.docs') }}
+              <kbd
+                class="inline-flex items-center justify-center w-4 h-4 text-xs bg-bg-muted border border-border rounded"
+                aria-hidden="true"
               >
-                <span class="i-carbon:document w-3 h-3" aria-hidden="true" />
-                {{ $t('package.links.docs') }}
-                <kbd
-                  class="inline-flex items-center justify-center w-4 h-4 text-xs bg-bg-muted border border-border rounded"
-                  aria-hidden="true"
-                >
-                  d
-                </kbd>
-              </NuxtLink>
-              <NuxtLink
-                :to="{
-                  name: 'code',
-                  params: {
-                    path: [...pkg.name.split('/'), 'v', displayVersion.version],
-                  },
-                }"
-                class="px-2 py-1.5 font-mono text-xs rounded transition-colors duration-150 border border-transparent text-fg-subtle hover:text-fg hover:bg-bg hover:shadow hover:border-border focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-fg/50 inline-flex items-center gap-1.5"
-                aria-keyshortcuts="."
+                d
+              </kbd>
+            </NuxtLink>
+            <NuxtLink
+              :to="{
+                name: 'code',
+                params: {
+                  path: [...pkg.name.split('/'), 'v', displayVersion.version],
+                },
+              }"
+              class="px-2 py-1.5 font-mono text-xs rounded transition-colors duration-150 border border-transparent text-fg-subtle hover:text-fg hover:bg-bg hover:shadow hover:border-border focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-fg/50 inline-flex items-center gap-1.5"
+              aria-keyshortcuts="."
+            >
+              <span class="i-carbon:code w-3 h-3" aria-hidden="true" />
+              {{ $t('package.links.code') }}
+              <kbd
+                class="inline-flex items-center justify-center w-4 h-4 text-xs bg-bg-muted border border-border rounded"
+                aria-hidden="true"
               >
-                <span class="i-carbon:code w-3 h-3" aria-hidden="true" />
-                {{ $t('package.links.code') }}
-                <kbd
-                  class="inline-flex items-center justify-center w-4 h-4 text-xs bg-bg-muted border border-border rounded"
-                  aria-hidden="true"
-                >
-                  .
-                </kbd>
-              </NuxtLink>
-              <NuxtLink
-                :to="{ path: '/compare', query: { packages: pkg.name } }"
-                class="px-2 py-1.5 font-mono text-xs rounded transition-colors duration-150 border border-transparent text-fg-subtle hover:text-fg hover:bg-bg hover:shadow hover:border-border focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-fg/50 inline-flex items-center gap-1.5"
-                aria-keyshortcuts="c"
+                .
+              </kbd>
+            </NuxtLink>
+            <NuxtLink
+              :to="{ path: '/compare', query: { packages: pkg.name } }"
+              class="px-2 py-1.5 font-mono text-xs rounded transition-colors duration-150 border border-transparent text-fg-subtle hover:text-fg hover:bg-bg hover:shadow hover:border-border focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-fg/50 inline-flex items-center gap-1.5"
+              aria-keyshortcuts="c"
+            >
+              <span class="i-carbon:compare w-3 h-3" aria-hidden="true" />
+              {{ $t('package.links.compare') }}
+              <kbd
+                class="inline-flex items-center justify-center w-4 h-4 text-xs bg-bg-muted border border-border rounded"
+                aria-hidden="true"
               >
-                <span class="i-carbon:compare w-3 h-3" aria-hidden="true" />
-                {{ $t('package.links.compare') }}
-                <kbd
-                  class="inline-flex items-center justify-center w-4 h-4 text-xs bg-bg-muted border border-border rounded"
-                  aria-hidden="true"
-                >
-                  c
-                </kbd>
-              </NuxtLink>
-            </nav>
-          </div>
+                c
+              </kbd>
+            </NuxtLink>
+          </nav>
+        </div>
+      </header>
 
+      <!-- Package details -->
+      <section class="area-details">
+        <div class="mb-4">
           <!-- Description container with min-height to prevent CLS -->
           <div class="max-w-2xl min-h-[4.5rem]">
             <p v-if="pkg.description" class="text-fg-muted text-base m-0">
@@ -698,7 +723,7 @@ function handleClick(event: MouseEvent) {
 
         <!-- Stats grid -->
         <dl
-          class="grid grid-cols-2 sm:grid-cols-11 gap-3 sm:gap-4 py-4 sm:py-6 mt-4 sm:mt-6 border-t border-border"
+          class="grid grid-cols-2 sm:grid-cols-11 gap-3 sm:gap-4 py-4 sm:py-6 mt-4 sm:mt-6 border-t border-b border-border"
         >
           <div v-if="pkg.license" class="space-y-1 sm:col-span-2">
             <dt class="text-xs text-fg-subtle uppercase tracking-wider">
@@ -859,7 +884,7 @@ function handleClick(event: MouseEvent) {
             :version="displayVersion?.version"
           />
         </ClientOnly>
-      </header>
+      </section>
 
       <!-- Binary-only packages: Show only execute command (no install) -->
       <section v-if="isBinaryOnly" class="area-install scroll-mt-20">
@@ -965,7 +990,7 @@ function handleClick(event: MouseEvent) {
 
       <div class="area-sidebar">
         <!-- Sidebar -->
-        <div class="sticky top-20 space-y-6 sm:space-y-8 min-w-0 overflow-hidden">
+        <div class="sticky top-34 space-y-6 sm:space-y-8 min-w-0 overflow-hidden xl:(top-22 pt-2)">
           <!-- Maintainers (with admin actions when connected) -->
           <PackageMaintainers :package-name="pkg.name" :maintainers="pkg.maintainers" />
 
@@ -1113,6 +1138,7 @@ function handleClick(event: MouseEvent) {
   grid-template-columns: minmax(0, 1fr);
   grid-template-areas:
     'header'
+    'details'
     'install'
     'vulns'
     'sidebar'
@@ -1125,6 +1151,7 @@ function handleClick(event: MouseEvent) {
     grid-template-columns: 2fr 1fr;
     grid-template-areas:
       'header  header'
+      'details details'
       'install install'
       'vulns   vulns'
       'readme  sidebar';
@@ -1138,6 +1165,7 @@ function handleClick(event: MouseEvent) {
     grid-template-columns: 1fr 20rem;
     grid-template-areas:
       'header  sidebar'
+      'details sidebar'
       'install sidebar'
       'vulns   sidebar'
       'readme  sidebar';
@@ -1146,7 +1174,10 @@ function handleClick(event: MouseEvent) {
 
 .area-header {
   grid-area: header;
-  overflow-x: hidden;
+}
+
+.area-details {
+  grid-area: details;
 }
 
 .area-install {