diff --git a/apps/web/src/components/layout/main-layout.tsx b/apps/web/src/components/layout/main-layout.tsx
index 193181c..c4cfb03 100644
--- a/apps/web/src/components/layout/main-layout.tsx
+++ b/apps/web/src/components/layout/main-layout.tsx
@@ -8,7 +8,7 @@ export function MainLayout({ children }: Props) {
   return (
     <div className="min-h-screen flex flex-col bg-[#ECF4E8]">
       <Navbar />
-      <main className="mx-auto w-full max-w-6xl flex-1 px-6 py-8">
+      <main className="mx-auto w-full max-w-6xl flex-1 px-4 sm:px-6 py-6 sm:py-8">
         {children}
       </main>
       <Footer />
diff --git a/apps/web/src/components/layout/mobile-nav.tsx b/apps/web/src/components/layout/mobile-nav.tsx
new file mode 100644
index 0000000..281e8d0
--- /dev/null
+++ b/apps/web/src/components/layout/mobile-nav.tsx
@@ -0,0 +1,82 @@
+import { Link, useLocation } from "react-router-dom";
+import { X, Leaf } from "lucide-react";
+
+type Props = {
+  open: boolean;
+  onClose: () => void;
+  userRole?: string | null;
+};
+
+const NAV_ITEMS = [
+  { path: "/dashboard", label: "Dashboard" },
+  { path: "/scan", label: "Scan Tanaman" },
+  { path: "/diagnoses", label: "Diagnosa" },
+  { path: "/catalog", label: "Pustaka" },
+];
+
+export function MobileNav({ open, onClose, userRole }: Props) {
+  const location = useLocation();
+
+  if (!open) return null;
+
+  const isActive = (path: string) => location.pathname === path;
+
+  return (
+    <div className="fixed inset-0 z-50 lg:hidden">
+      {/* Backdrop */}
+      <div className="fixed inset-0 bg-black/40" onClick={onClose} />
+      {/* Panel */}
+      <div className="fixed inset-y-0 right-0 z-50 w-full max-w-sm bg-[#306D29] shadow-xl">
+        <div className="flex items-center justify-between px-6 h-20 border-b border-white/10">
+          <div className="flex items-center gap-3 font-semibold text-white">
+            <div className="flex h-10 w-10 items-center justify-center rounded-2xl bg-[#48A111]">
+              <Leaf className="h-5 w-5" />
+            </div>
+            <span className="text-lg font-bold">ZeaVis Edu</span>
+          </div>
+          <button
+            onClick={onClose}
+            className="rounded-full p-2 text-white/80 hover:bg-white/10 hover:text-white transition-colors"
+            aria-label="Tutup menu"
+          >
+            <X className="h-6 w-6" />
+          </button>
+        </div>
+
+        <nav className="flex flex-col gap-2 px-4 pt-6">
+          {NAV_ITEMS.map((item) => {
+            const active = isActive(item.path);
+            return (
+              <Link
+                key={item.path}
+                to={item.path}
+                onClick={onClose}
+                className={`rounded-full px-4 py-3 text-[16px] font-medium transition-colors ${
+                  active
+                    ? "bg-[#48A111] text-white shadow-sm"
+                    : "text-white/85 hover:bg-white/10 hover:text-white"
+                }`}
+              >
+                {item.label}
+              </Link>
+            );
+          })}
+
+          {userRole === "expert" && (
+            <Link
+              to="/expert/reviews"
+              onClick={onClose}
+              className={`rounded-full px-4 py-3 text-[16px] font-medium transition-colors ${
+                isActive("/expert/reviews")
+                  ? "bg-[#48A111] text-white shadow-sm"
+                  : "text-white/85 hover:bg-white/10 hover:text-white"
+              }`}
+            >
+              Review
+            </Link>
+          )}
+        </nav>
+      </div>
+    </div>
+  );
+}
diff --git a/apps/web/src/components/layout/navbar.tsx b/apps/web/src/components/layout/navbar.tsx
index f9f64a4..a36db68 100644
--- a/apps/web/src/components/layout/navbar.tsx
+++ b/apps/web/src/components/layout/navbar.tsx
@@ -1,11 +1,14 @@
+import { useState } from "react";
 import { Link, useLocation, useNavigate } from "react-router-dom";
-import { Leaf } from "lucide-react";
+import { Leaf, Menu } from "lucide-react";
+import { MobileNav } from "./mobile-nav";
 import { Button } from "@/components/ui/button";
 import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { useAuthStore } from "@/store/auth-store";
 import { apiClient } from "@/lib/api-client";
 
 export function Navbar() {
+  const [mobileMenuOpen, setMobileMenuOpen] = useState(false);
   const location = useLocation();
   const navigate = useNavigate();
   const queryClient = useQueryClient();
@@ -50,7 +53,7 @@ export function Navbar() {
           </div>
         </div>
 
-        <nav className="flex items-center gap-2">
+        <nav className="hidden lg:flex items-center gap-2">
           <Link to="/dashboard" className={navLinkClassName(isActive("/dashboard"))}>
             Dashboard
           </Link>
@@ -72,6 +75,19 @@ export function Navbar() {
             </Link>
           )}
         </nav>
+
+        <button
+          onClick={() => setMobileMenuOpen(true)}
+          className="lg:hidden rounded-full p-2 text-white/80 hover:bg-white/10 hover:text-white transition-colors"
+          aria-label="Buka menu navigasi"
+        >
+          <Menu className="h-6 w-6" />
+        </button>
+
+        <MobileNav
+          open={mobileMenuOpen}
+          onClose={() => setMobileMenuOpen(false)}
+        />
       </div>
     </header>
   );
diff --git a/apps/web/src/components/ui/modal.tsx b/apps/web/src/components/ui/modal.tsx
index e536f04..97d5b6b 100644
--- a/apps/web/src/components/ui/modal.tsx
+++ b/apps/web/src/components/ui/modal.tsx
@@ -63,7 +63,7 @@ export function Modal({
         aria-modal="true"
         tabIndex={-1}
         ref={containerRef}
-        className={`relative z-10 w-full ${sizeClass[size]} rounded-lg bg-white p-6 shadow-lg ${className ?? ""}`}
+        className={`relative z-10 w-full ${sizeClass[size]} mx-4 max-h-[90vh] overflow-y-auto rounded-lg bg-white p-6 shadow-lg ${className ?? ""}`}
       >
         <ModalHeader right={headerRight}>
           {title ? <h2 className="text-lg font-semibold">{title}</h2> : null}
diff --git a/apps/web/src/pages/catalog-page.tsx b/apps/web/src/pages/catalog-page.tsx
index 41a08a8..11620b1 100644
--- a/apps/web/src/pages/catalog-page.tsx
+++ b/apps/web/src/pages/catalog-page.tsx
@@ -42,7 +42,7 @@ export function CatalogPage() {
 
   return (
     <div className="space-y-6">
-      <div className="flex items-center justify-between">
+      <div className="flex flex-col sm:flex-row items-start sm:items-center justify-between gap-3">
         <div>
           <h1 className="text-2xl font-bold text-emerald-800">Pustaka Penyakit</h1>
           <p className="text-gray-500 mt-1 text-md">
diff --git a/apps/web/src/pages/dashboard-page.tsx b/apps/web/src/pages/dashboard-page.tsx
index 88d8913..a5cdbc3 100644
--- a/apps/web/src/pages/dashboard-page.tsx
+++ b/apps/web/src/pages/dashboard-page.tsx
@@ -77,13 +77,13 @@ export function DashboardPage() {
         style={{ backgroundImage: `url(${bg})` }}
       >
         <div className="absolute inset-0 bg-gradient-to-b from-[#2F6E1A]/60 to-black/30" />
-        <div className="relative z-10 flex flex-col md:flex-row items-center justify-between gap-6 p-10">
+        <div className="relative z-10 flex flex-col md:flex-row items-center justify-between gap-6 p-6 md:p-10">
           <div className="space-y-3 w-full md:w-2/3 text-white">
             <span className="inline-block rounded-full bg-[#1E8A2A]/80 px-4 py-2 text-xs font-semibold">
               AI FOR SMART EDUCATION
             </span>
-            <h1 className="text-4xl font-extrabold">Selamat Datang di</h1>
-            <h2 className="text-4xl font-extrabold tracking-tight text-[#9AD872]">
+            <h1 className="text-2xl md:text-4xl font-extrabold">Selamat Datang di</h1>
+            <h2 className="text-2xl md:text-4xl font-extrabold tracking-tight text-[#9AD872]">
               ZeaVis Edu
             </h2>
             <p className="mt-3 max-w-xl text-white/90">
@@ -91,11 +91,11 @@ export function DashboardPage() {
               Indonesia mendeteksi penyakit daun secara mandiri, cepat, dan
               akurat.
             </p>
-            <div className="mt-6 flex items-center gap-4">
+            <div className="mt-6 flex flex-col sm:flex-row items-center gap-3 sm:gap-4">
               <Button
                 asChild
                 variant="outline"
-                className="bg-[#306D29] hover:bg-[#1E8A2A]/90 px-6 py-6 text-lg font-semibold text-white"
+                className="bg-[#306D29] hover:bg-[#1E8A2A]/90 px-4 md:px-6 py-3 md:py-6 text-sm md:text-lg font-semibold text-white"
               >
                 <Link to="/scan" className="inline-flex items-center gap-2">
                   <Scan className="h-5 w-6" />
@@ -105,7 +105,7 @@ export function DashboardPage() {
               <Button
                 asChild
                 variant="outline"
-                className="px-6 py-6 text-lg font-semibold text-white hover:bg-[#1E8A2A]"
+                className="px-4 md:px-6 py-3 md:py-6 text-sm md:text-lg font-semibold text-white hover:bg-[#1E8A2A]"
               >
                 <Link
                   to="/catalog"
@@ -149,7 +149,7 @@ export function DashboardPage() {
               }
             >
               <div className="md:col-span-4 text-xl font-bold">
-                <h3 className="text-[24px] font-extrabold text-[#214B11]">
+                <h3 className="text-lg md:text-[24px] font-extrabold text-[#214B11]">
                   Proyek Urgensi
                 </h3>
                 <p className="text-[15px] font-normal text-muted-foreground">
@@ -231,7 +231,7 @@ export function DashboardPage() {
           {/* Mission section */}
           <section className="space-y-5 rounded-4xl bg-[#EEF4E8] py-6 md:py-8">
             <div className="space-y-1">
-              <h3 className="text-[24px] font-extrabold text-[#214B11]">
+              <h3 className="text-lg md:text-[24px] font-extrabold text-[#214B11]">
                 Misi Platform
               </h3>
               <p className="text-[15px] font-normal text-muted-foreground">
@@ -272,7 +272,7 @@ export function DashboardPage() {
           <section className="space-y-4">
             <div className="mb-2 flex items-start justify-between">
               <div>
-                <h3 className="text-[24px] font-extrabold text-[#214B11]">
+                <h3 className="text-lg md:text-[24px] font-extrabold text-[#214B11]">
                   Penyakit yang Dapat Dideteksi
                 </h3>
                 <p className="text-[15px] font-normal text-muted-foreground">
@@ -322,7 +322,7 @@ export function DashboardPage() {
           </section>
 
           {/* Scan quick access */}
-          <div className="mt-12 flex items-center gap-6 bg-[#1E8A2A] rounded-3xl p-6">
+          <div className="mt-12 flex flex-col sm:flex-row items-center gap-4 sm:gap-6 bg-[#1E8A2A] rounded-3xl p-5 sm:p-6">
             <div className="flex-1 text-white">
               <h3 className="text-2xl font-bold">Siap Mendeteksi Penyakit Daun?</h3>
               <p className="text-sm text-[#9AD872] font-normal mt-2">
diff --git a/apps/web/src/pages/diagnoses-page.tsx b/apps/web/src/pages/diagnoses-page.tsx
index af5e87f..9f33d63 100644
--- a/apps/web/src/pages/diagnoses-page.tsx
+++ b/apps/web/src/pages/diagnoses-page.tsx
@@ -114,7 +114,7 @@ export function DiagnosesPage() {
           ))}
         </select>
 
-        <div className="ml-auto text-sm text-muted-foreground">
+        <div className="w-full sm:w-auto sm:ml-auto text-sm text-muted-foreground">
           Total: {filtered.length}
         </div>
       </div>
@@ -150,7 +150,7 @@ export function DiagnosesPage() {
                     <img
                       src={d.imageUrl}
                       alt="Daun"
-                      className="h-24 w-24 rounded-md object-cover bg-muted"
+                      className="h-16 md:h-24 w-16 md:w-24 rounded-md object-cover bg-muted shrink-0"
                     />
                     <div className="flex-1 min-w-0">
                       <div className="flex items-center justify-between gap-2">
diff --git a/apps/web/src/pages/diagnosis-detail-page.tsx b/apps/web/src/pages/diagnosis-detail-page.tsx
index c9f45e6..c2c56ff 100644
--- a/apps/web/src/pages/diagnosis-detail-page.tsx
+++ b/apps/web/src/pages/diagnosis-detail-page.tsx
@@ -14,23 +14,22 @@ export function DiagnosisDetailPage() {
     enabled: Boolean(id),
   });
 
-  if (query.isLoading) return <main className="p-8 text-center text-muted-foreground">Memuat diagnosis...</main>;
-  if (query.error || !query.data) return <main className="p-8 text-center text-red-600">Diagnosis tidak ditemukan</main>;
+  if (query.isLoading) return <div className="p-8 text-center text-muted-foreground">Memuat diagnosis...</div>;
+  if (query.error || !query.data) return <div className="p-8 text-center text-red-600">Diagnosis tidak ditemukan</div>;
 
   const diagnosis = query.data;
 
   return (
-    <main className="min-h-screen px-6 py-8">
-      <div className="mx-auto max-w-5xl space-y-6">
-        <div className="flex items-center justify-between gap-4">
+    <div className="space-y-6">
+      <div className="flex items-center justify-between gap-4">
           <div>
             <p className="text-sm font-medium text-primary">Detail Diagnosis</p>
-            <h1 className="text-3xl font-bold">{diagnosis.disease?.commonName ?? 'Diagnosis gagal'}</h1>
+            <h1 className="text-xl md:text-3xl font-bold">{diagnosis.disease?.commonName ?? 'Diagnosis gagal'}</h1>
           </div>
           <Button asChild variant="outline"><Link to="/dashboard">Kembali</Link></Button>
         </div>
 
-        <section className="grid gap-6 lg:grid-cols-[360px_1fr]">
+        <section className="grid gap-6 lg:grid-cols-2">
           <Card>
             <CardContent className="p-4">
               <img src={diagnosis.imageUrl} alt="Daun jagung" className="w-full rounded-xl object-cover" />
@@ -99,6 +98,5 @@ export function DiagnosisDetailPage() {
           </Card>
         )}
       </div>
-    </main>
-  );
-}
+    );
+  }
diff --git a/apps/web/src/pages/disease-detail-page.tsx b/apps/web/src/pages/disease-detail-page.tsx
index c0407eb..2bfe5a2 100644
--- a/apps/web/src/pages/disease-detail-page.tsx
+++ b/apps/web/src/pages/disease-detail-page.tsx
@@ -78,7 +78,7 @@ export function DiseaseDetailPage() {
       <div className="space-y-4">
         <div className="flex items-start justify-between gap-4">
           <div>
-            <h1 className="text-4xl font-bold tracking-tight">{disease.commonName}</h1>
+            <h1 className="text-2xl md:text-4xl font-bold tracking-tight">{disease.commonName}</h1>
             <p className="mt-2 text-lg text-muted-foreground">{disease.label}</p>
           </div>
           <RiskBadge level={disease.riskLevel} />
@@ -131,7 +131,7 @@ export function DiseaseDetailPage() {
         </CardContent>
       </Card>
 
-      <div className="flex gap-3 pt-4">
+      <div className="flex flex-col sm:flex-row gap-3 pt-4">
         <Button asChild className="flex-1">
           <Link to="/catalog">Lihat Katalog Lengkap</Link>
         </Button>
diff --git a/apps/web/src/pages/expert-reviews-page.tsx b/apps/web/src/pages/expert-reviews-page.tsx
index 74498a1..cd8d0fe 100644
--- a/apps/web/src/pages/expert-reviews-page.tsx
+++ b/apps/web/src/pages/expert-reviews-page.tsx
@@ -69,7 +69,7 @@ export function ExpertReviewsPage() {
 
   return (
     <div className="space-y-6">
-      <div className="flex items-center justify-between">
+      <div className="flex flex-col sm:flex-row items-start sm:items-center justify-between gap-3">
         <div>
           <h1 className="text-2xl font-bold text-emerald-800">Review Pakar</h1>
           <p className="text-gray-500 mt-1 text-md">
@@ -111,11 +111,11 @@ export function ExpertReviewsPage() {
                   }`}
                 >
                   <Card className="transition hover:border-primary">
-                    <CardContent className="flex gap-3 p-3">
+                    <CardContent className="flex gap-3 p-3 items-start">
                       <img
                         src={review.imageUrl}
                         alt="Daun jagung"
-                        className="h-20 w-20 rounded-lg object-cover"
+                        className="h-14 md:h-20 w-14 md:w-20 rounded-lg object-cover shrink-0"
                       />
                       <div className="min-w-0 flex-1 space-y-1">
                         <div className="flex flex-wrap items-center justify-between gap-1">
@@ -168,7 +168,7 @@ export function ExpertReviewsPage() {
                   <img
                     src={selected.imageUrl}
                     alt={`Gambar daun jagung untuk ${selected.disease?.commonName ?? "diagnosis"}`}
-                    className="h-64 w-full rounded-lg object-cover"
+                    className="h-48 md:h-64 w-full rounded-lg object-cover"
                   />
 
                   <div className="space-y-2">
@@ -218,7 +218,7 @@ export function ExpertReviewsPage() {
                   <form onSubmit={handleSubmit} className="space-y-4">
                     <div className="space-y-2">
                       <label className="text-sm font-medium">Keputusan</label>
-                      <div className="flex gap-3">
+                      <div className="flex flex-col sm:flex-row gap-3">
                         <label
                           htmlFor="verdict-verified"
                           className="flex items-center gap-2"
diff --git a/apps/web/src/pages/library-page.tsx b/apps/web/src/pages/library-page.tsx
index 38833a8..0050cbc 100644
--- a/apps/web/src/pages/library-page.tsx
+++ b/apps/web/src/pages/library-page.tsx
@@ -26,7 +26,7 @@ export function LibraryPage() {
 
   return (
     <div className="space-y-6">
-      <div className="flex items-center justify-between gap-4">
+      <div className="flex flex-col sm:flex-row items-start sm:items-center justify-between gap-3 sm:gap-4">
         <div>
           <h1 className="text-2xl font-bold text-emerald-800">Pustaka Penyakit</h1>
           <p className="text-gray-500 mt-1 text-md">
diff --git a/apps/web/src/pages/login-page.tsx b/apps/web/src/pages/login-page.tsx
index a2bddbc..995af45 100644
--- a/apps/web/src/pages/login-page.tsx
+++ b/apps/web/src/pages/login-page.tsx
@@ -28,7 +28,7 @@ export function LoginPage() {
 
   return (
     <main className="flex min-h-screen items-center justify-center px-6 py-12">
-      <div className="w-full space-y-4">
+      <div className="w-full max-w-sm md:max-w-md space-y-4">
         <AuthForm
           mode="login"
           isSubmitting={mutation.isPending}
diff --git a/apps/web/src/pages/register-page.tsx b/apps/web/src/pages/register-page.tsx
index e3a0cc9..f6d418e 100644
--- a/apps/web/src/pages/register-page.tsx
+++ b/apps/web/src/pages/register-page.tsx
@@ -28,7 +28,7 @@ export function RegisterPage() {
 
   return (
     <main className="flex min-h-screen items-center justify-center px-6 py-12">
-      <div className="w-full space-y-4">
+      <div className="w-full max-w-sm md:max-w-md space-y-4">
         <AuthForm
           mode="register"
           isSubmitting={mutation.isPending}
diff --git a/apps/web/src/pages/scan-page.tsx b/apps/web/src/pages/scan-page.tsx
index f55e837..b26bee4 100644
--- a/apps/web/src/pages/scan-page.tsx
+++ b/apps/web/src/pages/scan-page.tsx
@@ -76,7 +76,7 @@ export function ScanPage() {
 
   return (
     <div className="space-y-6">
-      <div className="flex items-center justify-between gap-4">
+      <div className="flex flex-col sm:flex-row items-start sm:items-center justify-between gap-3 sm:gap-4">
         <div>
           <h1 className="text-2xl font-bold text-emerald-800">Scan Tanaman</h1>
           <p className="text-gray-500 mt-1 text-md">
@@ -91,7 +91,7 @@ export function ScanPage() {
 
       <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
         <div className="lg:col-span-2 space-y-4">
-          <Card className="w-full h-117 py-3">
+          <Card className="w-full lg:h-117 py-3">
             <CardContent className="px-6 py-4 h-full flex flex-col">
               {/* Left Sidebar */}
               <div className="text-black flex items-center gap-2 mb-3 text-lg font-semibold">
@@ -198,7 +198,7 @@ export function ScanPage() {
                     <p className="text-sm text-muted-foreground">
                       File: <span className="font-medium">{fileName}</span>
                     </p>
-                    <div className="flex gap-3">
+                    <div className="flex flex-wrap gap-3">
                       <Button
                         variant="outline"
                         onClick={() => {
@@ -248,7 +248,7 @@ export function ScanPage() {
         </div>
 
         {/* Right Sidebar */}
-        <aside className="md:col-span-1 flex flex-col gap-5">
+        <aside className="lg:col-span-1 flex flex-col gap-5">
           {/* Card 1: Panduan Pengambilan Foto */}
           <Card className="w-full h-max">
             <CardContent className="px-6 py-4">