diff --git a/2048.css b/2048.css
index aeb30ff..96c835d 100644
--- a/2048.css
+++ b/2048.css
@@ -534,16 +534,56 @@ h1 {
 }
 
 /* Tile Colors */
-.tile-2 { background: #00eaff55; box-shadow: 0 0 12px #00eaff; }
-.tile-4 { background: #00ff9955; box-shadow: 0 0 12px #00ff99; }
-.tile-8 { background: #ff00ff55; box-shadow: 0 0 12px #ff00ff; }
-.tile-16 { background: #ff006655; box-shadow: 0 0 12px #ff0066; }
-.tile-32 { background: #ffaa0055; box-shadow: 0 0 12px #ffaa00; }
-.tile-64 { background: #ff000055; box-shadow: 0 0 12px #ff0000; }
-.tile-128 { background: #5f00ff55; box-shadow: 0 0 12px #5f00ff; }
-.tile-256 { background: #00ffea55; box-shadow: 0 0 12px #00ffea; }
-.tile-512 { background: #ff00aa55; box-shadow: 0 0 12px #ff00aa; }
-.tile-1024 { background: #00ffaa55; box-shadow: 0 0 12px #00ffaa; }
+.tile-2 { 
+    background: #00eaff55; 
+    box-shadow: 0 0 12px #00eaff; 
+}
+
+.tile-4 { 
+    background: #00ff9955; 
+    box-shadow: 0 0 12px #00ff99; 
+}
+
+.tile-8 { 
+    background: #ff00ff55; 
+    box-shadow: 0 0 12px #ff00ff; 
+}
+
+.tile-16 { 
+    background: #ff006655; 
+    box-shadow: 0 0 12px #ff0066; 
+}
+
+.tile-32 { 
+    background: #ffaa0055; 
+    box-shadow: 0 0 12px #ffaa00; 
+}
+
+.tile-64 { 
+    background: #ff000055; 
+    box-shadow: 0 0 12px #ff0000; 
+}
+
+.tile-128 { 
+    background: #5f00ff55; 
+    box-shadow: 0 0 12px #5f00ff; 
+}
+
+.tile-256 { 
+    background: #00ffea55; 
+    box-shadow: 0 0 12px #00ffea; 
+}
+
+.tile-512 { 
+    background: #ff00aa55; 
+    box-shadow: 0 0 12px #ff00aa; 
+}
+
+.tile-1024 { 
+    background: #00ffaa55; 
+    box-shadow: 0 0 12px #00ffaa; 
+}
+
 .tile-2048 { 
     background: #ffd70066; 
     box-shadow: 0 0 18px #ffd700;
@@ -881,10 +921,6 @@ h1 {
 /* ==========================
    GAME OVER MODAL - WITH ICON BUTTONS
 ========================== */
-/* ==========================
-   GAME OVER MODAL - REVISED VERSION
-   Copy bagian ini dan replace yang lama di 2048.css
-========================== */
 
 .game-over-overlay {
     position: fixed;
@@ -1237,219 +1273,6 @@ h1 {
         height: clamp(28px, 6vw, 34px);
     }
 }
-/* ==========================
-   BACKGROUND EFFECTS
-========================== */
-.particles {
-    position: fixed;
-    inset: 0;
-    pointer-events: none;
-    z-index: 0;
-    background:
-      radial-gradient(circle at 20% 30%, rgba(0,234,255,0.2), transparent 48%),
-      radial-gradient(circle at 80% 70%, rgba(255,0,90,0.2), transparent 48%),
-      radial-gradient(circle at 50% 50%, rgba(140,0,255,0.16), transparent 58%),
-      radial-gradient(circle at 10% 85%, rgba(0,255,200,0.14), transparent 58%),
-      radial-gradient(circle at 90% 15%, rgba(255,0,255,0.17), transparent 48%);
-    filter: blur(60px) brightness(125%) saturate(135%);
-    animation: particlesFloat 20s ease-in-out infinite alternate;
-}
-
-@keyframes particlesFloat {
-    0%   { transform: translateY(0px) translateX(0px); }
-    50%  { transform: translateY(-30px) translateX(12px); }
-    100% { transform: translateY(-45px) translateX(-18px); }
-}
-
-/* Floating Particles from Bottom */
-.floating-particles {
-    position: fixed;
-    inset: 0;
-    overflow: hidden;
-    pointer-events: none;
-    z-index: 0; /* Di bawah semua elemen game */
-}
-
-.floating-particle {
-    position: absolute;
-    bottom: -20px;
-    width: 8px;
-    height: 8px;
-    background: rgba(0, 234, 255, 0.6);
-    border-radius: 50%;
-    filter: blur(1px);
-    box-shadow: 0 0 15px currentColor;
-    animation: floatUp linear infinite;
-}
-
-@keyframes floatUp {
-    0% {
-        transform: translateY(0) translateX(0) scale(0.5);
-        opacity: 0;
-    }
-    10% {
-        opacity: 1;
-    }
-    90% {
-        opacity: 0.6;
-    }
-    100% {
-        transform: translateY(-100vh) translateX(var(--drift, 0)) scale(1.2);
-        opacity: 0;
-    }
-}
-
-/* Different particle colors */
-.floating-particle.cyan {
-    background: rgba(0, 234, 255, 0.7);
-    box-shadow: 0 0 20px rgba(0, 234, 255, 0.8);
-}
-
-.floating-particle.pink {
-    background: rgba(255, 0, 255, 0.6);
-    box-shadow: 0 0 20px rgba(255, 0, 255, 0.7);
-}
-
-.floating-particle.purple {
-    background: rgba(200, 100, 255, 0.6);
-    box-shadow: 0 0 20px rgba(200, 100, 255, 0.7);
-}
-
-.floating-particle.green {
-    background: rgba(0, 255, 200, 0.6);
-    box-shadow: 0 0 20px rgba(0, 255, 200, 0.7);
-}
-
-.floating-particle.orange {
-    background: rgba(255, 170, 0, 0.6);
-    box-shadow: 0 0 20px rgba(255, 170, 0, 0.7);
-}
-
-.starfield {
-    position: fixed;
-    inset: 0;
-    overflow: hidden;
-    pointer-events: none;
-    z-index: 1;
-}
-
-.starfield span {
-    position: absolute;
-    width: 4px;
-    height: 4px;
-    background: rgba(0,255,255,0.85);
-    border-radius: 50%;
-    filter: blur(2px);
-    animation: starMove linear infinite;
-}
-
-@keyframes starMove {
-    0% { transform: translateY(0); opacity: 0.85; }
-    100% { transform: translateY(-750px); opacity: 0; }
-}
-
-.cursor-light {
-    position: absolute;
-    width: 250px;
-    height: 250px;
-    background: radial-gradient(circle, rgba(0,255,255,0.28), transparent 72%);
-    border-radius: 50%;
-    pointer-events: none;
-    transform: translate(-50%, -50%);
-    filter: blur(45px);
-    mix-blend-mode: screen;
-    opacity: 0.65;
-}
-
-.merge-particle {
-    position: absolute;
-    width: 8px;
-    height: 8px;
-    border-radius: 50%;
-    pointer-events: none;
-    opacity: 0.95;
-    will-change: transform, opacity;
-    filter: blur(1px) drop-shadow(0 0 8px rgba(255,255,255,0.1));
-}
-/* ==========================
-   ENHANCED BACKGROUND EFFECTS
-
-/* Update .particles styling */
-.particles {
-    position: fixed;
-    inset: 0;
-    pointer-events: none;
-    z-index: 0;
-    background:
-      radial-gradient(circle at 20% 30%, rgba(0,234,255,0.15), transparent 40%),
-      radial-gradient(circle at 80% 70%, rgba(255,0,90,0.15), transparent 40%),
-      radial-gradient(circle at 50% 50%, rgba(140,0,255,0.12), transparent 50%),
-      radial-gradient(circle at 10% 85%, rgba(0,255,200,0.1), transparent 50%),
-      radial-gradient(circle at 90% 15%, rgba(255,0,255,0.13), transparent 40%);
-    filter: blur(50px) brightness(110%);
-    animation: particlesFloat 18s ease-in-out infinite alternate;
-}
-
-@keyframes particlesFloat {
-    0%   { 
-        transform: translateY(0px) translateX(0px); 
-        opacity: 0.8;
-    }
-    50%  { 
-        transform: translateY(-25px) translateX(15px); 
-        opacity: 1;
-    }
-    100% { 
-        transform: translateY(-40px) translateX(-20px); 
-        opacity: 0.8;
-    }
-}
-
-/* Enhanced Starfield */
-.starfield {
-    position: fixed;
-    inset: 0;
-    overflow: hidden;
-    pointer-events: none;
-    z-index: 1;
-}
-
-.starfield span {
-    position: absolute;
-    width: 3px;
-    height: 3px;
-    background: rgba(0,255,255,0.7);
-    border-radius: 50%;
-    filter: blur(1.5px);
-    box-shadow: 0 0 8px rgba(0, 234, 255, 0.6);
-    animation: starMove linear infinite;
-}
-
-@keyframes starMove {
-    0% { 
-        transform: translateY(0); 
-        opacity: 0.7; 
-    }
-    100% { 
-        transform: translateY(-750px); 
-        opacity: 0; 
-    }
-}
-
-/* Enhanced Cursor Light */
-.cursor-light {
-    position: absolute;
-    width: 280px;
-    height: 280px;
-    background: radial-gradient(circle, rgba(0,255,255,0.2), rgba(255,0,255,0.15) 50%, transparent 70%);
-    border-radius: 50%;
-    pointer-events: none;
-    transform: translate(-50%, -50%);
-    filter: blur(50px);
-    mix-blend-mode: screen;
-    opacity: 0.5;
-    transition: opacity 0.3s ease;
-}
 
 /* ==========================
    RESPONSIVE DESIGN
diff --git a/2048.html b/2048.html
index 594b472..fd1c92d 100644
--- a/2048.html
+++ b/2048.html
@@ -4,6 +4,13 @@
     <meta charset="UTF-8"/>
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
     <title>2048</title>
+    <link rel="stylesheet" href="2048_Base.css"/>
+    <link rel="stylesheet" href="2048_Animation.css"/>
+    <link rel="stylesheet" href="2048_Layout.css"/>
+    <link rel="stylesheet" href="2048_Buttons.css"/>
+    <link rel="stylesheet" href="2048_Modals.css"/>
+    <link rel="stylesheet" href="2048_Background_Effects.css"/>
+    <link rel="stylesheet" href="2048_Floating_Particles.css"/>
     <link rel="stylesheet" href="2048.css"/>
     <link rel="preconnect" href="https://fonts.googleapis.com"/>
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin/>
@@ -320,5 +327,6 @@
     <script src="2048_Logic.js"></script>
     <script src="2048_Controls.js"></script>
     <script src="Main_2048.js"></script>
+    <script src="Tutorial_Logic.js"></script>
   </body>
 </html>
\ No newline at end of file
diff --git a/2048_Background_Effects.css b/2048_Background_Effects.css
new file mode 100644
index 0000000..e0b6d0a
--- /dev/null
+++ b/2048_Background_Effects.css
@@ -0,0 +1,147 @@
+/* ==========================
+   BACKGROUND EFFECTS
+========================== */
+.particles {
+    position: fixed;
+    inset: 0;
+    pointer-events: none;
+    z-index: 0;
+    background:
+      radial-gradient(circle at 20% 30%, rgba(0,234,255,0.2), transparent 48%),
+      radial-gradient(circle at 80% 70%, rgba(255,0,90,0.2), transparent 48%),
+      radial-gradient(circle at 50% 50%, rgba(140,0,255,0.16), transparent 58%),
+      radial-gradient(circle at 10% 85%, rgba(0,255,200,0.14), transparent 58%),
+      radial-gradient(circle at 90% 15%, rgba(255,0,255,0.17), transparent 48%);
+    filter: blur(60px) brightness(125%) saturate(135%);
+    animation: particlesFloat 20s ease-in-out infinite alternate;
+}
+
+@keyframes particlesFloat {
+    0%   { transform: translateY(0px) translateX(0px); }
+    50%  { transform: translateY(-30px) translateX(12px); }
+    100% { transform: translateY(-45px) translateX(-18px); }
+}
+
+.starfield {
+    position: fixed;
+    inset: 0;
+    overflow: hidden;
+    pointer-events: none;
+    z-index: 1;
+}
+
+.starfield span {
+    position: absolute;
+    width: 4px;
+    height: 4px;
+    background: rgba(0,255,255,0.85);
+    border-radius: 50%;
+    filter: blur(2px);
+    animation: starMove linear infinite;
+}
+
+@keyframes starMove {
+    0% { transform: translateY(0); opacity: 0.85; }
+    100% { transform: translateY(-750px); opacity: 0; }
+}
+
+.cursor-light {
+    position: absolute;
+    width: 250px;
+    height: 250px;
+    background: radial-gradient(circle, rgba(0,255,255,0.28), transparent 72%);
+    border-radius: 50%;
+    pointer-events: none;
+    transform: translate(-50%, -50%);
+    filter: blur(45px);
+    mix-blend-mode: screen;
+    opacity: 0.65;
+}
+
+.merge-particle {
+    position: absolute;
+    width: 8px;
+    height: 8px;
+    border-radius: 50%;
+    pointer-events: none;
+    opacity: 0.95;
+    will-change: transform, opacity;
+    filter: blur(1px) drop-shadow(0 0 8px rgba(255,255,255,0.1));
+}
+/* ENHANCED BACKGROUND EFFECTS */
+/* Update .particles styling */
+.particles {
+    position: fixed;
+    inset: 0;
+    pointer-events: none;
+    z-index: 0;
+    background:
+      radial-gradient(circle at 20% 30%, rgba(0,234,255,0.15), transparent 40%),
+      radial-gradient(circle at 80% 70%, rgba(255,0,90,0.15), transparent 40%),
+      radial-gradient(circle at 50% 50%, rgba(140,0,255,0.12), transparent 50%),
+      radial-gradient(circle at 10% 85%, rgba(0,255,200,0.1), transparent 50%),
+      radial-gradient(circle at 90% 15%, rgba(255,0,255,0.13), transparent 40%);
+    filter: blur(50px) brightness(110%);
+    animation: particlesFloat 18s ease-in-out infinite alternate;
+}
+
+@keyframes particlesFloat {
+    0%   { 
+        transform: translateY(0px) translateX(0px); 
+        opacity: 0.8;
+    }
+    50%  { 
+        transform: translateY(-25px) translateX(15px); 
+        opacity: 1;
+    }
+    100% { 
+        transform: translateY(-40px) translateX(-20px); 
+        opacity: 0.8;
+    }
+}
+
+/* Enhanced Starfield */
+.starfield {
+    position: fixed;
+    inset: 0;
+    overflow: hidden;
+    pointer-events: none;
+    z-index: 1;
+}
+
+.starfield span {
+    position: absolute;
+    width: 3px;
+    height: 3px;
+    background: rgba(0,255,255,0.7);
+    border-radius: 50%;
+    filter: blur(1.5px);
+    box-shadow: 0 0 8px rgba(0, 234, 255, 0.6);
+    animation: starMove linear infinite;
+}
+
+@keyframes starMove {
+    0% { 
+        transform: translateY(0); 
+        opacity: 0.7; 
+    }
+    100% { 
+        transform: translateY(-750px); 
+        opacity: 0; 
+    }
+}
+
+/* Enhanced Cursor Light */
+.cursor-light {
+    position: absolute;
+    width: 280px;
+    height: 280px;
+    background: radial-gradient(circle, rgba(0,255,255,0.2), rgba(255,0,255,0.15) 50%, transparent 70%);
+    border-radius: 50%;
+    pointer-events: none;
+    transform: translate(-50%, -50%);
+    filter: blur(50px);
+    mix-blend-mode: screen;
+    opacity: 0.5;
+    transition: opacity 0.3s ease;
+}
\ No newline at end of file
diff --git a/2048_Floating_Particles.css b/2048_Floating_Particles.css
new file mode 100644
index 0000000..e808223
--- /dev/null
+++ b/2048_Floating_Particles.css
@@ -0,0 +1,63 @@
+/* Floating Particles from Bottom */
+.floating-particles {
+    position: fixed;
+    inset: 0;
+    overflow: hidden;
+    pointer-events: none;
+    z-index: 0; /* Di bawah semua elemen game */
+}
+
+.floating-particle {
+    position: absolute;
+    bottom: -20px;
+    width: 8px;
+    height: 8px;
+    background: rgba(0, 234, 255, 0.6);
+    border-radius: 50%;
+    filter: blur(1px);
+    box-shadow: 0 0 15px currentColor;
+    animation: floatUp linear infinite;
+}
+
+@keyframes floatUp {
+    0% {
+        transform: translateY(0) translateX(0) scale(0.5);
+        opacity: 0;
+    }
+    10% {
+        opacity: 1;
+    }
+    90% {
+        opacity: 0.6;
+    }
+    100% {
+        transform: translateY(-100vh) translateX(var(--drift, 0)) scale(1.2);
+        opacity: 0;
+    }
+}
+
+/* Different particle colors */
+.floating-particle.cyan {
+    background: rgba(0, 234, 255, 0.7);
+    box-shadow: 0 0 20px rgba(0, 234, 255, 0.8);
+}
+
+.floating-particle.pink {
+    background: rgba(255, 0, 255, 0.6);
+    box-shadow: 0 0 20px rgba(255, 0, 255, 0.7);
+}
+
+.floating-particle.purple {
+    background: rgba(200, 100, 255, 0.6);
+    box-shadow: 0 0 20px rgba(200, 100, 255, 0.7);
+}
+
+.floating-particle.green {
+    background: rgba(0, 255, 200, 0.6);
+    box-shadow: 0 0 20px rgba(0, 255, 200, 0.7);
+}
+
+.floating-particle.orange {
+    background: rgba(255, 170, 0, 0.6);
+    box-shadow: 0 0 20px rgba(255, 170, 0, 0.7);
+}
\ No newline at end of file
diff --git a/Leaderboard.css b/Leaderboard.css
index 0daa4d3..b35c1ea 100644
--- a/Leaderboard.css
+++ b/Leaderboard.css
@@ -2,6 +2,7 @@
 
 /* Main Container */
 .container {
+    margin-top: 70px;
     position: relative;
     z-index: 2;
     background: rgba(20, 0, 40, 0.65);
diff --git a/Leaderboard_Components.css b/Leaderboard_Components.css
index ca3e29d..46b191a 100644
--- a/Leaderboard_Components.css
+++ b/Leaderboard_Components.css
@@ -3,8 +3,8 @@
 /* Back Button */
 .btn-back {
     position: fixed;
-    top: 30px;
-    left: 30px;
+    top: 20px;
+    left: 20px;
     z-index: 100;
     width: 50px;
     height: 50px;
diff --git a/Register.css b/Register.css
index 853c38d..f9ceef5 100644
--- a/Register.css
+++ b/Register.css
@@ -1,4 +1,3 @@
-/* register-form.css */
 .input-group {
     margin-bottom: 25px;
 }
@@ -28,19 +27,15 @@ input::placeholder {
     width: 100%;
     padding: 15px;
     margin-top: 10px;
-
     background: linear-gradient(90deg, #00eaff, #ff00ff);
     border: none;
     border-radius: 12px;
-
     color: #fff;
     font-weight: bold;
     text-transform: uppercase;
     font-size: 18px;
-
     letter-spacing: 2px;
     cursor: pointer;
-
     box-shadow: 0 5px 25px rgba(0, 217, 255, 0.4);
     transition: all 0.25s ease;
 }
diff --git a/Register.js b/Register.js
index dcb1d10..0f51ab4 100644
--- a/Register.js
+++ b/Register.js
@@ -37,24 +37,44 @@ document.getElementById("registerForm").addEventListener("submit", async functio
             // 1. Tampilkan modal sukses
             showModal("success", "Register Successful!", data.message);
 
-            // 🔥 PERBAIKAN: SAVE SCORE & REDIRECT 🔥
-            
-            // Coba simpan skor jika variable 'score' atau 'gameScore' tersedia di global scope
-            // Atau jika kamu menyimpan skor sementara di localStorage
-            const pendingScore = localStorage.getItem('lastScore'); // Contoh jika pakai localStorage
-            
+            // 2. Simpan Score (Logic Anda)
+            const pendingScore = localStorage.getItem('lastScore'); 
             if (pendingScore && typeof saveScore === "function") {
                 console.log("Menyimpan skor pending: " + pendingScore);
                 saveScore(pendingScore);
             } else if (typeof score !== 'undefined') {
-                // Jika variabel global 'score' ada (dari file game logic)
                 saveScore(score);
             }
 
-            // Redirect ke halaman utama setelah 1.5 detik
-            setTimeout(() => {
-                window.location.href = "index.html"; // Ubah sesuai halaman game/menu kamu
-            }, 1500);
+            // --- 🔥 PERUBAHAN DI SINI 🔥 ---
+            
+            // Cari tombol OK pada modal.
+            // PENTING: Pastikan ID ini ("modalOkBtn") sesuai dengan ID tombol OK di HTML/Modal Anda.
+            // Jika ID-nya beda, ganti string di bawah ini.
+
+            // --- 🔥 TAMBAHKAN KODE DI SINI (Bagian Tombol OK) 🔥 ---
+            
+            const okBtn = document.getElementById("modalOkBtn"); 
+
+            if (okBtn) {
+                okBtn.addEventListener("click", function() {
+                    // [BARU] Simpan username ke sessionStorage AGAR TUTORIAL MUNCUL
+                    // Ini penting supaya logic di 2048.js tahu ini user baru
+                    sessionStorage.setItem("loggedInUser", username); 
+
+                    // Setelah disimpan, baru pindah ke Homepage
+                    window.location.href = "Homepage.html"; 
+                }, { once: true });
+                
+            } else {
+                // Fallback jika tombol error
+                console.warn("Tombol OK tidak ditemukan, redirect otomatis.");
+                setTimeout(() => {
+                    // [BARU] Simpan juga disini buat jaga-jaga
+                    sessionStorage.setItem("loggedInUser", username);
+                    window.location.href = "Homepage.html";
+                }, 2000);
+            }
 
         } else {
             showModal("error", "Register Failed!", data.message || "An error occurred.");
diff --git a/Register_Modal.css b/Register_Modal.css
index d0b2bc4..3a18be3 100644
--- a/Register_Modal.css
+++ b/Register_Modal.css
@@ -1,4 +1,3 @@
-/* register-modal.css */
 .modal {
     display: none;
     position: fixed;
diff --git a/Register_Responsive.css b/Register_Responsive.css
index 9043052..2b75329 100644
--- a/Register_Responsive.css
+++ b/Register_Responsive.css
@@ -1,4 +1,3 @@
-/* register-responsive.css */
 @media (max-width: 480px) {
     .container {
         padding: 30px 25px;
diff --git a/Tutorial_Logic.js b/Tutorial_Logic.js
new file mode 100644
index 0000000..f13bbce
--- /dev/null
+++ b/Tutorial_Logic.js
@@ -0,0 +1,52 @@
+/* ----------------------------------------------------
+   FILE: Tutorial_Logic.js
+   ---------------------------------------------------- */
+
+// Kita buat fungsi agar bisa dipanggil manual jika perlu
+function checkAndShowTutorial() {
+    // 1. Ambil user terbaru saat fungsi dijalankan
+    const currentUser = sessionStorage.getItem("loggedInUser") || "guest";
+    const tutorialKey = 'tutorialSeen_' + currentUser;
+
+    // DEBUG: Cek di Console browser (tekan F12 -> Console)
+    console.log(`[Tutorial Check] User: ${currentUser}`);
+    console.log(`[Tutorial Check] Key: ${tutorialKey}`);
+    
+    // 2. Cek status di LocalStorage
+    const hasSeenTutorial = localStorage.getItem(tutorialKey);
+    console.log(`[Tutorial Check] Status Seen: ${hasSeenTutorial}`);
+
+    const tutorialOverlay = document.getElementById('tutorial-overlay');
+
+    // 3. Logic: Jika belum pernah lihat (null) -> Tampilkan
+    if (!hasSeenTutorial && tutorialOverlay) {
+        console.log("-> Menampilkan Tutorial untuk user baru.");
+        tutorialOverlay.style.display = 'flex';
+    } else {
+        console.log("-> User ini sudah pernah lihat tutorial (atau overlay tidak ketemu).");
+    }
+}
+
+// Jalankan otomatis saat halaman selesai loading
+document.addEventListener('DOMContentLoaded', () => {
+    checkAndShowTutorial();
+
+    // Setup tombol close hanya sekali
+    const closeTutorialBtn = document.getElementById('close-tutorial');
+    const tutorialOverlay = document.getElementById('tutorial-overlay');
+    
+    if (closeTutorialBtn) {
+        closeTutorialBtn.addEventListener('click', () => {
+            // Ambil user SAAT INI (penting jika user berubah tanpa reload)
+            const currentUser = sessionStorage.getItem("loggedInUser") || "guest";
+            const tutorialKey = 'tutorialSeen_' + currentUser;
+            
+            if(tutorialOverlay) tutorialOverlay.style.display = 'none';
+            localStorage.setItem(tutorialKey, 'true');
+            console.log(`[Tutorial Check] Disimpan: ${tutorialKey} = true`);
+        });
+    }
+});
+
+// (Opsional) Bikin global biar bisa dipanggil dari file lain/console
+window.checkTutorial = checkAndShowTutorial;
\ No newline at end of file