diff --git a/apps/web-dashboard/src/app/settings/page.tsx b/apps/web-dashboard/src/app/settings/page.tsx
new file mode 100644
index 0000000..0a6d3fd
--- /dev/null
+++ b/apps/web-dashboard/src/app/settings/page.tsx
@@ -0,0 +1,75 @@
+import { Card, CardContent, CardHeader, CardTitle, CardDescription } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Settings } from "lucide-react";
+
+export default function SettingsPage() {
+  return (
+    <div className="p-8 space-y-6">
+      <div className="flex items-center gap-3">
+        <Settings className="size-8 text-muted-foreground" />
+        <div>
+          <h1 className="text-3xl font-bold tracking-tight">Settings</h1>
+          <p className="text-muted-foreground mt-1">Platform configuration and preferences.</p>
+        </div>
+      </div>
+
+      <div className="grid gap-6 max-w-2xl">
+        <Card>
+          <CardHeader>
+            <CardTitle>API Configuration</CardTitle>
+            <CardDescription>Configure the API server connection.</CardDescription>
+          </CardHeader>
+          <CardContent className="space-y-4">
+            <div>
+              <label className="text-sm font-medium">API Base URL</label>
+              <input type="text" defaultValue="http://localhost:8000" className="mt-1 block w-full h-9 rounded-lg border border-input bg-background px-3 text-sm outline-none focus:ring-2 focus:ring-ring/50" />
+            </div>
+            <div>
+              <label className="text-sm font-medium">Charging Engine URL</label>
+              <input type="text" defaultValue="http://localhost:3001" className="mt-1 block w-full h-9 rounded-lg border border-input bg-background px-3 text-sm outline-none focus:ring-2 focus:ring-ring/50" />
+            </div>
+            <Button size="sm">Save Changes</Button>
+          </CardContent>
+        </Card>
+
+        <Card>
+          <CardHeader>
+            <CardTitle>IMSI Configuration</CardTitle>
+            <CardDescription>Mobile Country Code and Mobile Network Code settings.</CardDescription>
+          </CardHeader>
+          <CardContent className="space-y-4">
+            <div className="grid grid-cols-2 gap-4">
+              <div>
+                <label className="text-sm font-medium">MCC+MNC Prefix</label>
+                <input type="text" defaultValue="20893" className="mt-1 block w-full h-9 rounded-lg border border-input bg-background px-3 text-sm outline-none focus:ring-2 focus:ring-ring/50" />
+              </div>
+              <div>
+                <label className="text-sm font-medium">IMSI Range</label>
+                <input type="text" defaultValue="1 - 999999999" className="mt-1 block w-full h-9 rounded-lg border border-input bg-background px-3 text-sm outline-none focus:ring-2 focus:ring-ring/50" readOnly />
+              </div>
+            </div>
+            <Button size="sm">Save Changes</Button>
+          </CardContent>
+        </Card>
+
+        <Card>
+          <CardHeader>
+            <CardTitle>ES2+ SM-DP+ Configuration</CardTitle>
+            <CardDescription>eSIM profile server connection settings.</CardDescription>
+          </CardHeader>
+          <CardContent className="space-y-4">
+            <div>
+              <label className="text-sm font-medium">SM-DP+ URL</label>
+              <input type="text" defaultValue="https://smdp.example.com" className="mt-1 block w-full h-9 rounded-lg border border-input bg-background px-3 text-sm outline-none focus:ring-2 focus:ring-ring/50" />
+            </div>
+            <div>
+              <label className="text-sm font-medium">API Key</label>
+              <input type="password" defaultValue="••••••••" className="mt-1 block w-full h-9 rounded-lg border border-input bg-background px-3 text-sm outline-none focus:ring-2 focus:ring-ring/50" />
+            </div>
+            <Button size="sm">Save Changes</Button>
+          </CardContent>
+        </Card>
+      </div>
+    </div>
+  );
+}
diff --git a/apps/web-dashboard/src/app/subscribers/page.tsx b/apps/web-dashboard/src/app/subscribers/page.tsx
new file mode 100644
index 0000000..63ba8a2
--- /dev/null
+++ b/apps/web-dashboard/src/app/subscribers/page.tsx
@@ -0,0 +1,94 @@
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import { UserPlus, Search, Download } from "lucide-react";
+
+const subscribers = [
+  { id: 1, name: "Alice Martin", msisdn: "+33612345678", imsi: "208930000000001", email: "alice@example.com", status: "active" as const, balance: 45.0, plan: "Premium 5G" },
+  { id: 2, name: "Bob Dupont", msisdn: "+33698765432", imsi: "208930000000002", email: "bob@example.com", status: "active" as const, balance: 12.5, plan: "Basic LTE" },
+  { id: 3, name: "Claire Moreau", msisdn: "+33678901234", imsi: "208930000000003", email: "claire@example.com", status: "provisioning" as const, balance: 0.0, plan: "Premium 5G" },
+  { id: 4, name: "David Leroy", msisdn: "+33667890123", imsi: "208930000000004", email: "david@example.com", status: "suspended" as const, balance: -2.3, plan: "Standard" },
+  { id: 5, name: "Emma Petit", msisdn: "+33656789012", imsi: "208930000000005", email: "emma@example.com", status: "active" as const, balance: 78.9, plan: "Premium 5G" },
+  { id: 6, name: "François Blanc", msisdn: "+33645678901", imsi: "208930000000006", email: "francois@example.com", status: "active" as const, balance: 25.0, plan: "Standard" },
+  { id: 7, name: "Gabrielle Roux", msisdn: "+33634567890", imsi: "208930000000007", email: "gabrielle@example.com", status: "terminated" as const, balance: 0.0, plan: "Basic LTE" },
+  { id: 8, name: "Henri Faure", msisdn: "+33623456789", imsi: "208930000000008", email: "henri@example.com", status: "active" as const, balance: 156.2, plan: "Enterprise" },
+];
+
+const statusVariant = (s: string) =>
+  s === "active" ? "success" : s === "suspended" ? "warning" : s === "terminated" ? "destructive" : "secondary";
+
+export default function SubscribersPage() {
+  return (
+    <div className="p-8 space-y-6">
+      <div className="flex items-center justify-between">
+        <div>
+          <h1 className="text-3xl font-bold tracking-tight">Subscribers</h1>
+          <p className="text-muted-foreground mt-1">Manage subscriber accounts and profiles.</p>
+        </div>
+        <div className="flex gap-2">
+          <Button variant="outline" size="sm"><Download className="size-4 mr-1.5" />Export</Button>
+          <Button size="sm"><UserPlus className="size-4 mr-1.5" />Add Subscriber</Button>
+        </div>
+      </div>
+
+      <Card>
+        <CardHeader className="flex-row items-center justify-between">
+          <CardTitle>All Subscribers</CardTitle>
+          <div className="flex items-center gap-2">
+            <div className="relative">
+              <Search className="absolute left-2.5 top-2.5 size-4 text-muted-foreground" />
+              <input
+                type="text"
+                placeholder="Search subscribers..."
+                className="h-9 rounded-lg border border-input bg-background pl-9 pr-3 text-sm outline-none focus:ring-2 focus:ring-ring/50 w-64"
+              />
+            </div>
+          </div>
+        </CardHeader>
+        <CardContent>
+          <div className="overflow-x-auto">
+            <table className="w-full text-sm">
+              <thead>
+                <tr className="border-b text-left text-muted-foreground">
+                  <th className="pb-3 font-medium">Name</th>
+                  <th className="pb-3 font-medium">MSISDN</th>
+                  <th className="pb-3 font-medium">IMSI</th>
+                  <th className="pb-3 font-medium">Plan</th>
+                  <th className="pb-3 font-medium text-right">Balance</th>
+                  <th className="pb-3 font-medium">Status</th>
+                  <th className="pb-3 font-medium text-right">Actions</th>
+                </tr>
+              </thead>
+              <tbody>
+                {subscribers.map((sub) => (
+                  <tr key={sub.id} className="border-b last:border-0 hover:bg-muted/50 transition-colors">
+                    <td className="py-3">
+                      <div>
+                        <p className="font-medium">{sub.name}</p>
+                        <p className="text-xs text-muted-foreground">{sub.email}</p>
+                      </div>
+                    </td>
+                    <td className="py-3 font-mono text-xs">{sub.msisdn}</td>
+                    <td className="py-3 font-mono text-xs">{sub.imsi}</td>
+                    <td className="py-3">{sub.plan}</td>
+                    <td className="py-3 text-right font-mono">
+                      <span className={sub.balance < 0 ? "text-red-600" : ""}>
+                        €{sub.balance.toFixed(2)}
+                      </span>
+                    </td>
+                    <td className="py-3">
+                      <Badge variant={statusVariant(sub.status)}>{sub.status}</Badge>
+                    </td>
+                    <td className="py-3 text-right">
+                      <Button variant="ghost" size="xs">View</Button>
+                    </td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          </div>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}
diff --git a/apps/web-dashboard/src/app/usage/page.tsx b/apps/web-dashboard/src/app/usage/page.tsx
new file mode 100644
index 0000000..3b52bd0
--- /dev/null
+++ b/apps/web-dashboard/src/app/usage/page.tsx
@@ -0,0 +1,78 @@
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { StatCard } from "@/components/stat-card";
+import { Activity, HardDrive, Phone, MessageSquare } from "lucide-react";
+
+const usageEvents = [
+  { id: 1, imsi: "208930000000001", type: "DATA", volume: "1.2 GB", cost: "€2.40", time: "2 min ago" },
+  { id: 2, imsi: "208930000000002", type: "VOICE", volume: "15 min", cost: "€0.75", time: "5 min ago" },
+  { id: 3, imsi: "208930000000005", type: "SMS", volume: "3 msgs", cost: "€0.30", time: "12 min ago" },
+  { id: 4, imsi: "208930000000001", type: "DATA", volume: "450 MB", cost: "€0.90", time: "18 min ago" },
+  { id: 5, imsi: "208930000000008", type: "DATA", volume: "2.8 GB", cost: "€5.60", time: "25 min ago" },
+  { id: 6, imsi: "208930000000006", type: "VOICE", volume: "42 min", cost: "€2.10", time: "30 min ago" },
+  { id: 7, imsi: "208930000000002", type: "DATA", volume: "780 MB", cost: "€1.56", time: "45 min ago" },
+  { id: 8, imsi: "208930000000005", type: "SMS", volume: "1 msg", cost: "€0.10", time: "1 hr ago" },
+];
+
+const typeIcon = (t: string) => {
+  if (t === "DATA") return HardDrive;
+  if (t === "VOICE") return Phone;
+  return MessageSquare;
+};
+
+export default function UsagePage() {
+  return (
+    <div className="p-8 space-y-6">
+      <div>
+        <h1 className="text-3xl font-bold tracking-tight">Usage &amp; Billing</h1>
+        <p className="text-muted-foreground mt-1">Monitor real-time usage and billing metrics.</p>
+      </div>
+
+      <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-4">
+        <StatCard title="Data Usage Today" value="48.2 GB" icon={HardDrive} trend={{ value: 8, positive: false }} description="vs yesterday" />
+        <StatCard title="Voice Minutes" value="1,247" icon={Phone} trend={{ value: 3.1, positive: true }} description="vs yesterday" />
+        <StatCard title="SMS Sent" value="389" icon={MessageSquare} description="today" />
+        <StatCard title="Revenue Today" value="€1,842" icon={Activity} trend={{ value: 15, positive: true }} description="vs yesterday" />
+      </div>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>Recent Usage Events</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="overflow-x-auto">
+            <table className="w-full text-sm">
+              <thead>
+                <tr className="border-b text-left text-muted-foreground">
+                  <th className="pb-3 font-medium">Type</th>
+                  <th className="pb-3 font-medium">IMSI</th>
+                  <th className="pb-3 font-medium">Volume</th>
+                  <th className="pb-3 font-medium text-right">Cost</th>
+                  <th className="pb-3 font-medium text-right">Time</th>
+                </tr>
+              </thead>
+              <tbody>
+                {usageEvents.map((evt) => {
+                  const Icon = typeIcon(evt.type);
+                  return (
+                    <tr key={evt.id} className="border-b last:border-0 hover:bg-muted/50 transition-colors">
+                      <td className="py-3">
+                        <div className="flex items-center gap-2">
+                          <Icon className="size-4 text-muted-foreground" />
+                          <span>{evt.type}</span>
+                        </div>
+                      </td>
+                      <td className="py-3 font-mono text-xs">{evt.imsi}</td>
+                      <td className="py-3">{evt.volume}</td>
+                      <td className="py-3 text-right font-mono">{evt.cost}</td>
+                      <td className="py-3 text-right text-muted-foreground">{evt.time}</td>
+                    </tr>
+                  );
+                })}
+              </tbody>
+            </table>
+          </div>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}
diff --git a/apps/web-dashboard/src/components/sidebar.tsx b/apps/web-dashboard/src/components/sidebar.tsx
new file mode 100644
index 0000000..892de9c
--- /dev/null
+++ b/apps/web-dashboard/src/components/sidebar.tsx
@@ -0,0 +1,62 @@
+"use client";
+
+import Link from "next/link";
+import { usePathname } from "next/navigation";
+import {
+  Users,
+  LayoutDashboard,
+  Activity,
+  CreditCard,
+  Shield,
+  Settings,
+  Radio,
+  HeartPulse,
+} from "lucide-react";
+import { cn } from "@/lib/utils";
+
+const navItems = [
+  { href: "/", label: "Dashboard", icon: LayoutDashboard },
+  { href: "/subscribers", label: "Subscribers", icon: Users },
+  { href: "/usage", label: "Usage & Billing", icon: Activity },
+  { href: "/payments", label: "Payments", icon: CreditCard },
+  { href: "/esim", label: "eSIM Profiles", icon: Radio },
+  { href: "/health", label: "System Health", icon: HeartPulse },
+  { href: "/chaos", label: "Chaos Engineering", icon: Shield },
+  { href: "/settings", label: "Settings", icon: Settings },
+];
+
+export function Sidebar() {
+  const pathname = usePathname();
+
+  return (
+    <aside className="hidden lg:flex flex-col w-64 border-r border-border bg-sidebar text-sidebar-foreground">
+      <div className="flex items-center gap-2 px-6 py-5 border-b border-sidebar-border">
+        <Radio className="size-6 text-sidebar-primary" />
+        <span className="text-lg font-semibold tracking-tight">Telecom Admin</span>
+      </div>
+
+      <nav className="flex-1 py-4 px-3 space-y-1">
+        {navItems.map((item) => {
+          const active =
+            item.href === "/" ? pathname === "/" : pathname.startsWith(item.href);
+          return (
+            <Link
+              key={item.href}
+              href={item.href}
+              className={cn(
+                "flex items-center gap-3 rounded-lg px-3 py-2 text-sm font-medium transition-colors",
+                active
+                  ? "bg-sidebar-accent text-sidebar-accent-foreground"
+                  : "text-sidebar-foreground/70 hover:bg-sidebar-accent/50 hover:text-sidebar-accent-foreground"
+              )}
+            >
+              <item.icon className="size-4" />
+              {item.label}
+            </Link>
+          );
+        })}
+      </nav>
+
+    </aside>
+  );
+}
diff --git a/apps/web-dashboard/src/components/stat-card.tsx b/apps/web-dashboard/src/components/stat-card.tsx
new file mode 100644
index 0000000..5e60301
--- /dev/null
+++ b/apps/web-dashboard/src/components/stat-card.tsx
@@ -0,0 +1,36 @@
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { type LucideIcon } from "lucide-react";
+import { cn } from "@/lib/utils";
+
+interface StatCardProps {
+  title: string;
+  value: string | number;
+  description?: string;
+  icon: LucideIcon;
+  trend?: { value: number; positive: boolean };
+  className?: string;
+}
+
+export function StatCard({ title, value, description, icon: Icon, trend, className }: StatCardProps) {
+  return (
+    <Card size="sm" className={cn("", className)}>
+      <CardHeader className="flex flex-row items-center justify-between pb-2">
+        <CardTitle className="text-sm font-medium text-muted-foreground">{title}</CardTitle>
+        <Icon className="size-4 text-muted-foreground" />
+      </CardHeader>
+      <CardContent>
+        <div className="text-2xl font-bold">{value}</div>
+        {(description || trend) && (
+          <p className="text-xs text-muted-foreground mt-1">
+            {trend && (
+              <span className={cn("font-medium", trend.positive ? "text-emerald-600" : "text-red-600")}>
+                {trend.positive ? "+" : ""}{trend.value}%{" "}
+              </span>
+            )}
+            {description}
+          </p>
+        )}
+      </CardContent>
+    </Card>
+  );
+}