diff --git a/components/layout/Navbar.tsx b/components/layout/Navbar.tsx
new file mode 100644
index 0000000..6e08f48
--- /dev/null
+++ b/components/layout/Navbar.tsx
@@ -0,0 +1,7 @@
+import { getAllCategories } from '@/lib/directus'
+import NavbarClient from './NavbarClient'
+
+export default async function Navbar() {
+  const categories = await getAllCategories()
+  return <NavbarClient categories={categories} />
+}
diff --git a/components/layout/NavbarClient.tsx b/components/layout/NavbarClient.tsx
new file mode 100644
index 0000000..a3bb6bb
--- /dev/null
+++ b/components/layout/NavbarClient.tsx
@@ -0,0 +1,60 @@
+'use client'
+
+import Link from 'next/link'
+import { usePathname } from 'next/navigation'
+import { Search } from 'lucide-react'
+import type { Category } from '@/lib/types'
+
+interface Props {
+  categories: Category[]
+}
+
+export default function NavbarClient({ categories }: Props) {
+  const pathname = usePathname()
+
+  function openSearch() {
+    window.dispatchEvent(new CustomEvent('kotobane:open-search'))
+  }
+
+  return (
+    <nav className="bg-bg-elevated border-b border-border sticky top-0 z-40">
+      <div className="max-w-[1200px] mx-auto px-6 h-14 flex items-center gap-6">
+        <Link href="/" className="text-lg font-black text-accent tracking-[3px] shrink-0">
+          言羽
+        </Link>
+
+        <div className="w-px h-4 bg-border shrink-0" />
+
+        <div className="flex items-center gap-1 overflow-x-auto">
+          {categories.map((cat) => {
+            const isActive = pathname.startsWith(`/${cat.slug}`)
+            return (
+              <Link
+                key={cat.slug}
+                href={`/${cat.slug}`}
+                className={`text-xs font-medium px-3 py-1 rounded-sm whitespace-nowrap transition-colors ${
+                  isActive
+                    ? 'text-accent'
+                    : 'text-text-muted hover:text-text-secondary'
+                }`}
+              >
+                {cat.name}
+              </Link>
+            )
+          })}
+        </div>
+
+        <button
+          onClick={openSearch}
+          className="ml-auto flex items-center gap-2 text-text-muted hover:text-text-secondary transition-colors shrink-0"
+          aria-label="Open search"
+        >
+          <Search size={16} />
+          <kbd className="hidden sm:inline-flex bg-bg-card border border-border rounded px-1.5 py-0.5 text-[10px] font-mono">
+            ⌘K
+          </kbd>
+        </button>
+      </div>
+    </nav>
+  )
+}