diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index 4efaeb46f..68d655857 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -23,7 +23,6 @@ jobs:
       NEXT_PUBLIC_SUPABASE_URL: https://placeholder.supabase.co
       NEXT_PUBLIC_SUPABASE_ANON_KEY: placeholder-anon-key
       SUPABASE_SERVICE_ROLE_KEY: placeholder-service-role-key
-      PLAYWRIGHT_SERVER_MODE: start
     steps:
       - uses: actions/checkout@v4
 
@@ -35,9 +34,6 @@ jobs:
       - name: Install app dependencies
         run: npm ci
 
-      - name: Build app
-        run: npm run build
-
       - name: Install Playwright browsers
         run: npx playwright install --with-deps chromium
 
diff --git a/src/app/dashboard/page.tsx b/src/app/dashboard/page.tsx
index 08f0d988f..b21877b28 100644
--- a/src/app/dashboard/page.tsx
+++ b/src/app/dashboard/page.tsx
@@ -1,4 +1,4 @@
-import LazyWidget from "@/components/LazyWidget";
+import LazyWidget from "@/components/LazyWidget";
 import DiscussionsWidget from "@/components/DiscussionsWidget";
 import CommunityMetrics from "@/components/CommunityMetrics";
 import GoalTracker from "@/components/GoalTracker";
@@ -107,7 +107,10 @@ export default async function DashboardPage() {
         <DashboardHeader />
 
         {/* Action bar */}
-        <div className="mb-6 flex flex-wrap items-stretch justify-center gap-2 sm:justify-end">
+        <div
+          id="overview"
+          className="mb-6 flex flex-wrap items-stretch justify-center gap-2 scroll-mt-24 sm:justify-end"
+        >
           <Link
             href="/wrapped"
             className="flex min-w-0 flex-1 items-center justify-center rounded-lg border border-[var(--accent)] bg-[var(--accent-soft)] px-4 py-2 text-center text-sm font-semibold text-[var(--accent)] transition-opacity hover:opacity-90 sm:min-w-[140px] sm:flex-none"
@@ -138,8 +141,8 @@ export default async function DashboardPage() {
           <AIMentorWidget />
         </div>
 
-        {/* ── Row 1: Contribution graph (2/3) + Streak sidebar (1/3) ── */}
-        <div className="mt-6 grid grid-cols-1 lg:grid-cols-3 gap-6">
+        {/* -- Row 1: Contribution graph (2/3) + Streak sidebar (1/3) -- */}
+        <div id="streaks" className="mt-6 grid grid-cols-1 gap-6 scroll-mt-24 lg:grid-cols-3">
           {/* Left: contribution graph + heatmap */}
           <div className="lg:col-span-2 flex flex-col gap-6">
             <ContributionGraph />
@@ -170,8 +173,8 @@ export default async function DashboardPage() {
           </LazyWidget>
         </div>
 
-        {/* ── Row 2: PR metrics + Community metrics ── */}
-        <div className="mt-6 grid grid-cols-1 md:grid-cols-2 gap-6">
+        {/* -- Row 2: PR metrics + Community metrics -- */}
+        <div id="pull-requests" className="mt-6 grid grid-cols-1 gap-6 scroll-mt-24 md:grid-cols-2">
           <PRMetrics />
           <CommunityMetrics />
         </div>
@@ -207,8 +210,8 @@ export default async function DashboardPage() {
           </LazyWidget>
         </div>
 
-        {/* ── Row 3: Issues (2/3) + CI analytics (1/3) ── */}
-        <div className="mt-6 grid grid-cols-1 lg:grid-cols-3 gap-6">
+        {/* -- Row 3: Issues (2/3) + CI analytics (1/3) -- */}
+        <div id="goals" className="mt-6 grid grid-cols-1 gap-6 scroll-mt-24 lg:grid-cols-3">
           <div className="lg:col-span-2">
             <LazyWidget fallback={<SkeletonCard />}>
               <IssueMetrics />
@@ -240,7 +243,7 @@ export default async function DashboardPage() {
           </LazyWidget>
         </div>
 
-        {/* ── Row 4: Top repos + Language breakdown + Goal tracker ── */}
+        {/* -- Row 4: Top repos + Language breakdown + Goal tracker -- */}
         <div className="mt-6 grid grid-cols-1 lg:grid-cols-3 gap-6">
           <LazyWidget fallback={<SkeletonCard />}>
             <TopRepos />
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index 80e33f0e9..a2f1c7720 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -1,6 +1,7 @@
 import CustomCursor from "@/components/CustomCursor";
 import type { Metadata, Viewport } from "next";
 import { Inter } from "next/font/google";
+import AppNavbar from "@/components/AppNavbar";
 import Footer from "@/components/Footer";
 import DeferredVercelMetrics from "@/components/DeferredVercelMetrics";
 import Providers from "./providers";
@@ -74,12 +75,15 @@ export default async function RootLayout({
       <body
         className={`${inter.className} min-h-screen bg-[var(--background)] text-[var(--foreground)]`}
       >
-        <CustomCursor />       
+        <CustomCursor />
         <PWARegister />
 
         <div className="flex min-h-screen flex-col">
           <div className="flex-1">
-            <Providers>{children}</Providers>
+            <Providers>
+              <AppNavbar />
+              {children}
+            </Providers>
           </div>
 
           <Footer />
diff --git a/src/components/AppNavbar.tsx b/src/components/AppNavbar.tsx
new file mode 100644
index 000000000..22be3dde6
--- /dev/null
+++ b/src/components/AppNavbar.tsx
@@ -0,0 +1,178 @@
+"use client";
+
+import Link from "next/link";
+import { Menu, X } from "lucide-react";
+import { signOut, useSession } from "next-auth/react";
+import { usePathname } from "next/navigation";
+import { useEffect, useMemo, useState } from "react";
+
+type NavItem = {
+  href: string;
+  label: string;
+};
+
+function isActivePath(pathname: string, href: string) {
+  if (href === "/") {
+    return pathname === "/";
+  }
+
+  if (href.includes("#")) {
+    const [base] = href.split("#");
+    return pathname === base;
+  }
+
+  return pathname === href || pathname.startsWith(`${href}/`);
+}
+export default function AppNavbar() {
+  const pathname = usePathname();
+  const { data: session, status } = useSession();
+  const [mobileOpen, setMobileOpen] = useState(false);
+  const isPublicProfileRoute = pathname.startsWith("/u/");
+
+  useEffect(() => {
+    setMobileOpen(false);
+  }, [pathname]);
+
+  const isAuthenticated = status === "authenticated" && Boolean(session);
+  const identityLabel =
+    session?.user?.name ?? session?.githubLogin ?? session?.user?.email ?? "GitHub user";
+
+  const navItems = useMemo<NavItem[]>(() => {
+    if (isAuthenticated) {
+      return [
+        { href: "/dashboard", label: "Dashboard" },
+        { href: "/dashboard#streaks", label: "Streaks" },
+        { href: "/dashboard#pull-requests", label: "Pull Requests" },
+        { href: "/dashboard#goals", label: "Goals" },
+        { href: "/leaderboard", label: "Leaderboard" },
+        { href: "/dashboard/settings", label: "Settings" },
+      ];
+    }
+
+    return [
+      { href: "/", label: "Home" },
+      { href: "/#features", label: "Features" },
+      { href: "/#open-source", label: "Open Source" },
+      { href: "/leaderboard", label: "Leaderboard" },
+    ];
+  }, [isAuthenticated]);
+
+  return (
+    <header className="sticky top-0 z-50 border-b border-[var(--border)] bg-[color-mix(in_srgb,var(--background)_82%,transparent)] backdrop-blur-xl">
+      <div className="mx-auto flex w-full max-w-7xl items-center justify-between gap-4 px-4 py-3 sm:px-6 lg:px-8">
+        <Link
+          href={isAuthenticated ? "/dashboard" : "/"}
+          className="inline-flex items-center gap-2 text-sm font-semibold tracking-[0.16em] text-[var(--foreground)]"
+          style={{ fontFamily: "var(--font-jetbrains, ui-monospace, monospace)" }}
+        >
+          <span className="text-[var(--accent)]">{">"}</span>
+          <span>DEVTRACK</span>
+        </Link>
+
+        <nav className="hidden items-center gap-2 lg:flex">
+          {navItems.map((item) => {
+            const active = isActivePath(pathname, item.href);
+
+            return (
+              <Link
+                key={item.href}
+                href={item.href}
+                className={`rounded-full px-4 py-2 text-sm font-medium transition-colors ${
+                  active
+                    ? "bg-[var(--accent-soft)] text-[var(--accent)]"
+                    : "text-[var(--muted-foreground)] hover:bg-[var(--card)] hover:text-[var(--foreground)]"
+                }`}
+              >
+                {item.label}
+              </Link>
+            );
+          })}
+        </nav>
+
+        <div className="hidden items-center gap-3 lg:flex">
+          {isAuthenticated ? (
+            <>
+              <div className="hidden max-w-48 truncate rounded-full border border-[var(--border)] bg-[var(--card)] px-4 py-2 text-sm text-[var(--card-foreground)] xl:block">
+                {identityLabel}
+              </div>
+              <button
+                type="button"
+                onClick={() => signOut({ callbackUrl: "/" })}
+                className="rounded-full bg-[var(--destructive)] px-4 py-2 text-sm font-semibold text-[var(--destructive-foreground)] transition-opacity hover:opacity-90"
+              >
+                Sign out
+              </button>
+            </>
+          ) : !isPublicProfileRoute ? (
+            <Link
+              href="/api/auth/signin/github?callbackUrl=/dashboard"
+              className="rounded-full bg-[var(--accent)] px-4 py-2 text-sm font-semibold text-[var(--accent-foreground)] transition-opacity hover:opacity-90"
+            >
+              Sign in with GitHub
+            </Link>
+          ) : null}
+        </div>
+
+        <button
+          type="button"
+          onClick={() => setMobileOpen((open) => !open)}
+          className="inline-flex items-center justify-center rounded-full border border-[var(--border)] bg-[var(--card)] p-2 text-[var(--foreground)] lg:hidden"
+          aria-expanded={mobileOpen}
+          aria-controls="app-mobile-nav"
+          aria-label={mobileOpen ? "Close navigation menu" : "Open navigation menu"}
+        >
+          {mobileOpen ? <X className="h-5 w-5" /> : <Menu className="h-5 w-5" />}
+        </button>
+      </div>
+
+      {mobileOpen ? (
+        <div
+          id="app-mobile-nav"
+          className="border-t border-[var(--border)] bg-[var(--background)] lg:hidden"
+        >
+          <div className="mx-auto flex w-full max-w-7xl flex-col gap-2 px-4 py-4 sm:px-6 lg:px-8">
+            {navItems.map((item) => {
+              const active = isActivePath(pathname, item.href);
+
+              return (
+                <Link
+                  key={item.href}
+                  href={item.href}
+                  className={`rounded-2xl px-4 py-3 text-sm font-medium transition-colors ${
+                    active
+                      ? "bg-[var(--accent-soft)] text-[var(--accent)]"
+                      : "bg-[var(--card)] text-[var(--card-foreground)] hover:bg-[var(--control)]"
+                  }`}
+                >
+                  {item.label}
+                </Link>
+              );
+            })}
+
+            {isAuthenticated ? (
+              <>
+                <div className="rounded-2xl border border-[var(--border)] bg-[var(--card)] px-4 py-3 text-sm text-[var(--card-foreground)]">
+                  {identityLabel}
+                </div>
+                <button
+                  type="button"
+                  onClick={() => signOut({ callbackUrl: "/" })}
+                  className="rounded-2xl bg-[var(--destructive)] px-4 py-3 text-left text-sm font-semibold text-[var(--destructive-foreground)]"
+                >
+                  Sign out
+                </button>
+              </>
+            ) : !isPublicProfileRoute ? (
+              <Link
+                href="/api/auth/signin/github?callbackUrl=/dashboard"
+                className="rounded-2xl bg-[var(--accent)] px-4 py-3 text-sm font-semibold text-[var(--accent-foreground)]"
+              >
+                Sign in with GitHub
+              </Link>
+            ) : null}
+          </div>
+        </div>
+      ) : null}
+    </header>
+  );
+}
diff --git a/src/components/WeeklySummaryCard.tsx b/src/components/WeeklySummaryCard.tsx
index af03d0c71..bb1547c2e 100644
--- a/src/components/WeeklySummaryCard.tsx
+++ b/src/components/WeeklySummaryCard.tsx
@@ -19,6 +19,31 @@ interface WeeklySummaryData {
   topRepo: string | null;
 }
 
+function isWeeklySummaryData(value: unknown): value is WeeklySummaryData {
+  if (!value || typeof value !== "object") return false;
+
+  const summary = value as Partial<WeeklySummaryData>;
+
+  return Boolean(
+    summary.commits &&
+      typeof summary.commits.current === "number" &&
+      typeof summary.commits.previous === "number" &&
+      typeof summary.commits.delta === "number" &&
+      typeof summary.commits.trend === "string" &&
+      summary.prs?.thisWeek &&
+      typeof summary.prs.thisWeek.opened === "number" &&
+      typeof summary.prs.thisWeek.merged === "number" &&
+      summary.prs?.lastWeek &&
+      typeof summary.prs.lastWeek.opened === "number" &&
+      typeof summary.prs.lastWeek.merged === "number" &&
+      summary.activeDays &&
+      typeof summary.activeDays.thisWeek === "number" &&
+      typeof summary.activeDays.lastWeek === "number" &&
+      typeof summary.streak === "number" &&
+      (typeof summary.topRepo === "string" || summary.topRepo === null)
+  );
+}
+
 export default function WeeklySummaryCard() {
   const { selectedAccount } = useAccount();
   const [summary, setSummary] = useState<WeeklySummaryData | null>(null);
@@ -43,7 +68,13 @@ export default function WeeklySummaryCard() {
         if (!r.ok) throw new Error("API error");
         return r.json();
       })
-      .then((data: WeeklySummaryData) => setSummary(data))
+      .then((data: unknown) => {
+        if (!isWeeklySummaryData(data)) {
+          throw new Error("Invalid weekly summary payload");
+        }
+
+        setSummary(data);
+      })
       .catch(() =>
         setError(
           "We couldn't load your weekly summary right now. Please try again in a moment."
diff --git a/src/components/landing/LandingPage.tsx b/src/components/landing/LandingPage.tsx
index d8256e7eb..2539c2756 100644
--- a/src/components/landing/LandingPage.tsx
+++ b/src/components/landing/LandingPage.tsx
@@ -535,7 +535,7 @@ function StatItem({ value, label, delay }: { value: number; label: string; delay
 
 function StatsSection() {
   return (
-    <section style={{
+    <section id="features" style={{
       padding: '64px clamp(20px,4vw,48px)',
       display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(150px,1fr))',
       gap: 24, borderTop: '1px solid #111',
@@ -633,6 +633,7 @@ function SetupSection() {
   const [ref, vis] = useScrollReveal(0.2);
   return (
     <section
+      id="open-source"
       ref={ref}
       style={{
         padding: '80px clamp(20px,4vw,48px)',
@@ -890,7 +891,6 @@ export default function LandingPage({ repoStats }: { repoStats: RepoStats }) {
       style={{ background: BG, color: TEXT, minHeight: '100vh', position: 'relative', overflowX: 'hidden' }}
     >
       <MouseSpotlight />
-      <LandingNav />
       <HeroSection />
       <CommitTicker />
       <HeatmapSection />