solution/frontend/src/components/layout/MarketingShell.tsx

@@ -17,13 +17,7 @@ const NAV = [
   {to: '/pricing', label: '요금'},
 ];
 
-export function MarketingShell({
+export function MarketingShell({children}: {children: ReactNode}) {
-  children,
-  showAuthCta = true,
-}: {
-  children: ReactNode;
-  showAuthCta?: boolean;
-}) {
   const user = useAuthStore((s) => s.user);
 
   return (
@@ -58,7 +52,7 @@ export function MarketingShell({
                 히어로의 큰 입력 카드가 이미 그 자리다 — 시작하는 문이 한 화면에 둘이면
                 어느 쪽이 진짜인지 고르게 만든다. 헤더는 로그인만 받는다.
             */}
-            {showAuthCta && (user ? (
+            {user ? (
               <Link
                 to="/sites"
                 className="rounded-md bg-primary px-4 py-2 text-[13px] font-medium text-primary-foreground transition-colors hover:bg-primary/90"
@@ -72,7 +66,7 @@ export function MarketingShell({
               >
                 로그인
               </Link>
-            ))}
+            )}
           </div>
         </div>
       </header>

solution/frontend/src/pages/LandingPage.tsx

@@ -1,5 +1,5 @@
 import {useState, type FormEvent} from 'react';
-import {Link, useNavigate, useSearchParams} from 'react-router';
+import {Link, useNavigate} from 'react-router';
 import {ArrowRight, ArrowUp, Check} from 'lucide-react';
 import {MarketingShell, Section, SectionHead} from '@/components/layout/MarketingShell';
 import {ShowcaseGrid, ShowcasePeeks} from '@/features/marketing/ShowcaseGrid';
@@ -74,8 +74,6 @@ const HEADLINES = [
 export function LandingPage() {
   const navigate = useNavigate();
   const [query, setQuery] = useState('');
-  const [searchParams] = useSearchParams();
-  const buildMode = searchParams.get('build') === '1';
 
   const submit = (event: FormEvent) => {
     event.preventDefault();
@@ -86,7 +84,7 @@ export function LandingPage() {
   };
 
   return (
-    <MarketingShell showAuthCta={buildMode}>
+    <MarketingShell>
       {/* ── 상단 ─────────────────────────────────────── */}
       <section className="relative flex min-h-[calc(100dvh-4rem)] items-center overflow-hidden border-b border-border">
         <div className="mx-auto w-full max-w-6xl px-5 text-center">
@@ -114,7 +112,6 @@ export function LandingPage() {
               <ShowcasePeeks />
             </div>
 
-            {buildMode && (
             <form
               onSubmit={submit}
               className="relative z-10 mx-auto max-w-2xl rounded-2xl border border-border bg-card p-4 text-left shadow-[0_18px_50px_-20px_rgb(20_22_34/0.35)]"
@@ -154,7 +151,6 @@ export function LandingPage() {
                 </button>
               </div>
             </form>
-            )}
           </div>
         </div>
       </section>