diff --git a/simulasi-mk.html b/simulasi-mk.html
index 7cf9f82..186c8aa 100644
--- a/simulasi-mk.html
+++ b/simulasi-mk.html
@@ -25,8 +25,8 @@
         .course-card.violation .cat-bar { background-color: #ef4444 !important; }
         .violation-badge { position: absolute; right: 0.5rem; bottom: 0.5rem; font-size: 0.65rem; color: #dc2626; font-weight: bold; display: flex; align-items: center; gap: 2px; }
 
-        /* Elective Styles (New) */
-        .course-card.is-elective { background-color: #fffbeb; border-color: #fcd34d; } /* Yellow tint */
+        /* Elective Styles */
+        .course-card.is-elective { background-color: #fffbeb; border-color: #fcd34d; }
 
         /* Grade Badges */
         .grade-badge { position: absolute; right: 0.5rem; top: 0.5rem; font-size: 0.7rem; font-weight: bold; padding: 0.1rem 0.4rem; border-radius: 0.25rem; }
@@ -134,7 +134,7 @@
             <h1 class="text-3xl md:text-4xl font-bold text-slate-900 mb-2">Simulasi Studi Berbasis IPS</h1>
             <p class="text-slate-600 max-w-2xl mx-auto text-sm md:text-base">
                 Simulasi nyata: <strong>IPS Semester lalu menentukan jatah SKS semester depan.</strong><br>
-                Jalur <strong>UMUM (Campuran)</strong> sekarang menampilkan mata kuliah spesifik di semester akhir. Buka Katalog untuk mengganti sesuai minat Anda.
+                Jika IPS rendah, Anda <strong>wajib mengurangi SKS</strong> di semester berikutnya.
             </p>
             
             <div class="mt-6 flex flex-wrap justify-center gap-3 text-xs font-semibold opacity-80">
@@ -200,7 +200,7 @@
     </div>
 
     <script>
-        // --- UTILS: Fix for HTTP Environments (Coolify) ---
+        // --- UTILS: Fix for HTTP Environments ---
         function generateUUID() {
             if (typeof crypto !== 'undefined' && crypto.randomUUID) {
                 return crypto.randomUUID();
@@ -224,7 +224,6 @@
             RES:  { color: 'bg-red-500' }
         };
 
-        // --- Prerequisite Rules ---
         const prerequisites = {
             "M14": { reqId: "M7", reqName: "Logika Komputasional" },
             "M19": { reqId: "M14", reqName: "Dasar Pemrograman" },
@@ -300,13 +299,12 @@
         };
 
         const electives = {
-            // General track now has specific courses as a "Sample Mix"
             general: [
-                { id: "GEN1", name: "Cross-Platform Dev", sks: 3, cat: "EL" }, // RPL flavor
-                { id: "GEN2", name: "Data Mining", sks: 3, cat: "EL" }, // AI flavor
-                { id: "GEN3", name: "Cloud Computing", sks: 3, cat: "EL" }, // Net flavor
-                { id: "GEN4", name: "E-Business", sks: 3, cat: "EL" }, // SI flavor
-                { id: "GEN5", name: "Blockchain Tech", sks: 3, cat: "EL" } // Advanced
+                { id: "GEN1", name: "Cross-Platform Dev", sks: 3, cat: "EL" },
+                { id: "GEN2", name: "Data Mining", sks: 3, cat: "EL" },
+                { id: "GEN3", name: "Cloud Computing", sks: 3, cat: "EL" },
+                { id: "GEN4", name: "E-Business", sks: 3, cat: "EL" },
+                { id: "GEN5", name: "Blockchain Tech", sks: 3, cat: "EL" }
             ],
             ai: [
                 { id: "AI1", name: "Deep Learning", sks: 3, cat: "EL" },
@@ -349,7 +347,6 @@
             currentTrackId = trackId;
             currentPlan = {};
             
-            // Populate Plan
             for(let i=1; i<=8; i++) {
                 currentPlan[i] = [];
                 if(baseCurriculum[i]) {
@@ -357,7 +354,6 @@
                 }
             }
             
-            // Add Electives with Flag
             const tr = electives[trackId] || electives['general'];
             const distribute = [[5,0], [6,1], [7,2], [7,3], [8,4]];
             distribute.forEach(([sem, idx]) => {
@@ -366,7 +362,7 @@
                         ...tr[idx], 
                         grade: 4, 
                         uuid: generateUUID(),
-                        isElective: true // Tag as elective
+                        isElective: true 
                     });
                 }
             });
@@ -375,16 +371,13 @@
             renderAll();
         }
 
-        // --- Prerequisite Check Function ---
         function checkPrerequisite(courseId, targetSem) {
             const rule = prerequisites[courseId];
             if (!rule) return { allowed: true };
 
             let passed = false;
-            // Scan only semesters BEFORE the target semester
             for (let i = 1; i < targetSem; i++) {
                 if (!currentPlan[i]) continue;
-                // Find instance of prerequisite course that is Passed (Grade > 0)
                 const found = currentPlan[i].find(c => c.id === rule.reqId && c.grade > 0);
                 if (found) {
                     passed = true;
@@ -398,22 +391,25 @@
             return { allowed: true };
         }
 
+        // --- Fixed Stat Calculations ---
         function calculateSemStats(semId) {
             const courses = currentPlan[semId] || [];
-            let totalSKS = 0;
-            let totalPoints = 0;
-            let loadSKS = 0; 
+            let sksAttempted = 0; // Divisor IPS (Termasuk E)
+            let sksPassed = 0;    // Total SKS Lulus (Grade > 0)
+            let totalPoints = 0;  // Numerator IPS
 
             courses.forEach(c => {
-                loadSKS += c.sks;
-                if(c.grade > 0) {
-                    totalSKS += c.sks;
-                    totalPoints += (c.sks * c.grade);
+                sksAttempted += c.sks;
+                totalPoints += (c.sks * c.grade); // Grade 0 * sks = 0
+                if (c.grade > 0) {
+                    sksPassed += c.sks;
                 }
             });
 
-            const ips = totalSKS > 0 ? (totalPoints / totalSKS) : 0;
-            return { ips, loadSKS };
+            // IPS = Total Points / SKS Attempted
+            const ips = sksAttempted > 0 ? (totalPoints / sksAttempted) : 0;
+            
+            return { ips, sksAttempted, sksPassed, totalPoints };
         }
 
         function getMaxSKS(prevIPS) {
@@ -428,7 +424,7 @@
             if (!grid) return;
             grid.innerHTML = '';
 
-            // First Pass: Check Violations (Prerequisites)
+            // First Pass: Check Violations
             for(let i=1; i<=8; i++) {
                 currentPlan[i].forEach(course => {
                     const check = checkPrerequisite(course.id, i);
@@ -448,7 +444,8 @@
                 }
 
                 const currentStats = calculateSemStats(i);
-                const currentLoad = currentStats.loadSKS;
+                // Use sksAttempted for load display
+                const currentLoad = currentStats.sksAttempted;
                 const isOverload = currentLoad > maxSKS;
 
                 const semDiv = document.createElement('div');
@@ -576,12 +573,38 @@
                 courseToAdd = currentPlan[dragSource.semId][dragSource.index];
             }
 
+            // --- 1. Prerequisite Check ---
             const check = checkPrerequisite(courseToAdd.id, targetSem);
             if (!check.allowed) {
                 showToast("❌ " + check.msg);
                 return;
             }
 
+            // --- 2. SKS Limit Check (NEW) ---
+            let maxSKS = 20; // Default for Sem 1
+            let prevIPS = 0;
+            
+            if (targetSem > 1) {
+                // Get IPS from previous semester
+                const prevStats = calculateSemStats(targetSem - 1);
+                prevIPS = prevStats.ips;
+                maxSKS = getMaxSKS(prevIPS);
+            }
+
+            // Current load in target semester
+            const currentStats = calculateSemStats(targetSem);
+            const currentLoad = currentStats.sksAttempted;
+
+            // Check if adding this course exceeds limit
+            if (currentLoad + courseToAdd.sks > maxSKS) {
+                let msg = `⚠️ Gagal! Maksimal ${maxSKS} SKS.`;
+                if(targetSem > 1) {
+                    msg += ` (IPS Sem ${targetSem-1}: ${prevIPS.toFixed(2)})`;
+                }
+                showToast(msg);
+                return;
+            }
+
             if(dragSource.type === 'catalog') {
                 currentPlan[targetSem].push(dragSource.course);
             } else {
@@ -768,9 +791,11 @@
         let domainChart = null;
 
         function updateGlobalStats() {
-            let totalSKS = 0;
-            let totalPoints = 0;
-            let failedSKS = 0;
+            let globalAttempted = 0;
+            let globalPassed = 0;
+            let globalPoints = 0;
+            let globalFailedSKS = 0;
+            
             let semIPS = [];
             let catCounts = { MKWU:0, BSC:0, FND:0, CORE:0, ADV:0, PROF:0, EL:0 };
 
@@ -778,26 +803,28 @@
                 const stats = calculateSemStats(i);
                 semIPS.push(stats.ips);
                 
+                globalAttempted += stats.sksAttempted;
+                globalPassed += stats.sksPassed;
+                globalPoints += stats.totalPoints;
+                
                 currentPlan[i].forEach(c => {
+                    if (c.grade === 0) globalFailedSKS += c.sks;
+                    // Count categories for passed/active courses
                     if (c.grade > 0) {
-                        totalSKS += c.sks;
-                        totalPoints += (c.sks * c.grade);
                         const cat = c.cat === 'CAP' || c.cat === 'RES' ? 'PROF' : c.cat; 
                         if(catCounts[cat] !== undefined) catCounts[cat] += c.sks;
-                    } else {
-                        failedSKS += c.sks;
                     }
                 });
             }
 
-            const ipk = totalSKS > 0 ? (totalPoints / totalSKS) : 0;
-            document.getElementById('total-sks-passed').innerText = totalSKS;
+            const ipk = globalAttempted > 0 ? (globalPoints / globalAttempted) : 0;
+            
+            document.getElementById('total-sks-passed').innerText = globalPassed;
             document.getElementById('ipk-global').innerText = ipk.toFixed(2);
-            document.getElementById('total-fail').innerText = failedSKS;
+            document.getElementById('total-fail').innerText = globalFailedSKS;
 
             let predikat = "Memuaskan";
-            // NEW LOGIC
-            const adaNilaiE = failedSKS > 0;
+            const adaNilaiE = globalFailedSKS > 0;
             
             if (ipk >= 3.51 && !adaNilaiE) {
                 predikat = "Cum Laude";