diff --git a/ASAshop.html b/ASAshop.html
index 95e7eb4..af1df24 100644
--- a/ASAshop.html
+++ b/ASAshop.html
@@ -5,6 +5,14 @@
     <title>Obli Studios Shop</title>
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <style>
+        [data-add="server1"]:disabled, [data-add="server2"]:disabled, [data-add="server3"]:disabled {
+            opacity: .6;
+            cursor: not-allowed
+        }
+
+        article.card:has([data-add="server1"]:disabled), article.card:has([data-add="server2"]:disabled), article.card:has([data-add="server3"]:disabled) {
+            filter: grayscale(0.2);
+        }
         :root {
             --bg: #0b1224;
             --card: #121b34;
@@ -497,14 +505,23 @@
         function loadCart() { try { return JSON.parse(localStorage.getItem('obli.cart') || '{}'); } catch { return {}; } }
         function cartCount() { return Object.values(state.cart).reduce((a, b) => a + b, 0); }
         function cartTotal() { return Object.entries(state.cart).reduce((s, [id, q]) => { const p = products.find(p => p.id === id); return s + (p ? p.price * q : 0) }, 0); }
+        const isServer = id => id === 'server1' || id === 'server2' || id === 'server3';
+        function serversInCart() {
+            return Object.entries(state.cart)
+                .filter(([id]) => isServer(id))
+                .reduce((a, [, q]) => a + q, 0);
+        }
+        function canAddServers(qtyToAdd) {
+            return serversInCart() + qtyToAdd <= remaining;
+        }
 
         /* ===== Render ===== */
         function cardHtml(p) {
             const inCart = state.cart[p.id] || 0;
             let infoBtn = '';
-            if (p.name === 'Server Class 1') infoBtn = `<button class="btn btn-secondary" data-info="server-class-1">Info</button>`;
-            if (p.name === 'Server Class 2') infoBtn = `<button class="btn btn-secondary" data-info="server-class-2">Info</button>`;
-            if (p.name === 'Server Class 3') infoBtn = `<button class="btn btn-secondary" data-info="server-class-3">Info</button>`;
+            if (p.name === 'Server Class 1') infoBtn = `<button class="btn btn-secondary" data-info="server-class-1">Info</button> <span class="chip" data-remaining>Remaining: <span class="remN">?</span>/12</span>`;
+            if (p.name === 'Server Class 2') infoBtn = `<button class="btn btn-secondary" data-info="server-class-2">Info</button> <span class="chip" data-remaining>Remaining: <span class="remN">?</span>/12</span>`;
+            if (p.name === 'Server Class 3') infoBtn = `<button class="btn btn-secondary" data-info="server-class-3">Info</button> <span class="chip" data-remaining>Remaining: <span class="remN">?</span>/12</span>`;
 
             return `<article class="card">
         <div class="img">${p.img ? `<img src="${p.img}" alt="${p.name}">` : `<canvas data-id="${p.id}" width="320" height="150"></canvas>`}</div>
@@ -572,11 +589,38 @@
             const add = e.target.closest('[data-add]');
             const inc = e.target.closest('[data-inc]');
             const dec = e.target.closest('[data-dec]');
-            if (add) { const id = add.getAttribute('data-add'); state.cart[id] = (state.cart[id] || 0) + 1; saveCart(); render(); }
-            if (inc) { const id = inc.getAttribute('data-inc'); state.cart[id] = (state.cart[id] || 0) + 1; saveCart(); updateCartUi(); }
-            if (dec) { const id = dec.getAttribute('data-dec'); state.cart[id] = Math.max(0, (state.cart[id] || 0) - 1); if (state.cart[id] === 0) delete state.cart[id]; saveCart(); render(); }
+
+            if (add) {
+                const id = add.getAttribute('data-add');
+                const qtyToAdd = 1;
+                if (isServer(id) && !canAddServers(qtyToAdd)) {
+                    alert(`Sold out or limit reached. Remaining: ${Math.max(0, remaining - serversInCart())}.`);
+                    return;
+                }
+                state.cart[id] = (state.cart[id] || 0) + 1;
+                saveCart(); render();
+            }
+
+            if (inc) {
+                const id = inc.getAttribute('data-inc');
+                const qtyToAdd = 1;
+                if (isServer(id) && !canAddServers(qtyToAdd)) {
+                    alert(`Sold out or limit reached. Remaining: ${Math.max(0, remaining - serversInCart())}.`);
+                    return;
+                }
+                state.cart[id] = (state.cart[id] || 0) + 1;
+                saveCart(); updateCartUi();
+            }
+
+            if (dec) {
+                const id = dec.getAttribute('data-dec');
+                state.cart[id] = Math.max(0, (state.cart[id] || 0) - 1);
+                if (state.cart[id] === 0) delete state.cart[id];
+                saveCart(); render();
+            }
         });
 
+
         /* ===== Modals (single global handlers) ===== */
         const modals = {
             'server-class-1': document.getElementById('infoModal'),
@@ -627,32 +671,36 @@
                 const p = products.find(p => p.id === id);
                 return { id, name: p?.name || id, qty, price: p?.price || 0 };
             });
-            const total = items.reduce((s, i) => s + i.price * i.qty, 0);
 
-            // notify your backend -> Discord webhook
-            try {
-                await fetch('/api/notify-webhook', {
-                    method: 'POST',
-                    headers: { 'Content-Type': 'application/json' },
-                    credentials: 'include',
-                    body: JSON.stringify({ items, total })
-                });
-            } catch (e) { console.warn('Webhook notify failed', e); }
+            // 1) Try to reserve on the server
+            const reserve = await fetch('/api/reserve', {
+                method: 'POST', headers: { 'Content-Type': 'application/json' }, credentials: 'include',
+                body: JSON.stringify({ items })
+            }).then(r => r.json()).catch(() => ({ ok: false }));
 
-            // payment behavior
-            if (entries.length === 1) {
-                const [id] = entries[0];
-                const p = products.find(p => p.id === id);
-                if (p && p.payment) { window.open(p.payment, '_blank'); return; }
+            if (!reserve?.ok) {
+                const rem = typeof reserve?.remaining === 'number' ? reserve.remaining : remaining;
+                alert(`Sold out. Remaining: ${rem}. Adjust your cart.`);
+                await refreshRemaining(); // sync the UI
+                return;
             }
-            if (GENERIC_CHECKOUT && GENERIC_CHECKOUT.startsWith('http')) {
-                window.open(GENERIC_CHECKOUT, '_blank');
-            } else {
-                const lines = items.map(i => `${i.qty} x ${i.name}`).join('%0A');
-                window.location.href = `mailto:sales@oblistudios.com?subject=Order%20Request&body=${lines}`;
+
+            // 2) Create a Stripe Checkout session
+            const session = await fetch('/api/create-checkout', {
+                method: 'POST', headers: { 'Content-Type': 'application/json' }, credentials: 'include',
+                body: JSON.stringify({ items })
+            }).then(r => r.json());
+
+            if (!session?.url) {
+                alert('Could not start checkout. Try again.'); return;
             }
+
+            window.location.href = session.url;
         });
 
+
+            
+
         /* ===== Boot ===== */
         document.getElementById('year').textContent = new Date().getFullYear();
         render();
@@ -672,6 +720,24 @@
                 ctx.fillText(products.find(p => p.id === id)?.name || id, 12, cv.height - 12);
             });
         }
+        // client.js (in your existing <script>)
+        let remaining = 12;
+        async function refreshRemaining() {
+            try {
+                const r = await fetch('/api/inventory'); const j = await r.json();
+                remaining = j.remaining;
+                document.querySelectorAll('[data-remaining] .remN').forEach(s => s.textContent = remaining);
+                // Disable all three server buttons if none left:
+                if (remaining <= 0) {
+                    document.querySelectorAll('[data-add="server1"],[data-add="server2"],[data-add="server3"]').forEach(btn => {
+                        btn.disabled = true; btn.textContent = 'Sold out';
+                    });
+                }
+            } catch { }
+        }
+        refreshRemaining();
+        setInterval(refreshRemaining, 30_000); // stay “24/7” up-to-date
+
     </script>
 </body>
 </html>
diff --git a/auth.js b/auth.js
new file mode 100644
index 0000000..8ce71b0
--- /dev/null
+++ b/auth.js
@@ -0,0 +1,50 @@
+// auth.js
+import express from "express";
+import fetch from "node-fetch";
+const router = express.Router();
+
+const CLIENT_ID = process.env.DISCORD_CLIENT_ID;
+const CLIENT_SECRET = process.env.DISCORD_CLIENT_SECRET;
+const REDIRECT_URI = process.env.DISCORD_REDIRECT_URI; // e.g. https://your.site/api/auth/discord/callback
+const SCOPES = ["identify"]; // you only need the user's handle/id
+
+router.get("/auth/discord", (req, res) => {
+    const url = new URL("https://discord.com/oauth2/authorize");
+    url.searchParams.set("client_id", CLIENT_ID);
+    url.searchParams.set("response_type", "code");
+    url.searchParams.set("scope", SCOPES.join(" "));
+    url.searchParams.set("redirect_uri", REDIRECT_URI);
+    res.redirect(url.toString());
+});
+
+router.get("/auth/discord/callback", async (req, res) => {
+    const code = req.query.code;
+    const token = await fetch("https://discord.com/api/oauth2/token", {
+        method: "POST",
+        headers: { "Content-Type": "application/x-www-form-urlencoded" },
+        body: new URLSearchParams({
+            client_id: CLIENT_ID,
+            client_secret: CLIENT_SECRET,
+            grant_type: "authorization_code",
+            code, redirect_uri: REDIRECT_URI
+        })
+    }).then(r => r.json());
+
+    const me = await fetch("https://discord.com/api/users/@me", {
+        headers: { Authorization: `Bearer ${token.access_token}` }
+    }).then(r => r.json());
+
+    req.session.user = {
+        id: me.id,
+        username: me.username,
+        global_name: me.global_name || null
+    };
+    res.redirect("/"); // back to storefront
+});
+
+router.get("/api/whoami", (req, res) => {
+    if (!req.session.user) return res.sendStatus(401);
+    res.json(req.session.user);
+});
+
+export default router;
diff --git a/client.js b/client.js
new file mode 100644
index 0000000..6be5d6b
--- /dev/null
+++ b/client.js
@@ -0,0 +1,17 @@
+// client.js (in your existing <script>)
+let remaining = 12;
+async function refreshRemaining() {
+    try {
+        const r = await fetch('/api/inventory'); const j = await r.json();
+        remaining = j.remaining;
+        document.querySelectorAll('[data-remaining] .remN').forEach(s => s.textContent = remaining);
+        // Disable all three server buttons if none left:
+        if (remaining <= 0) {
+            document.querySelectorAll('[data-add="server1"],[data-add="server2"],[data-add="server3"]').forEach(btn => {
+                btn.disabled = true; btn.textContent = 'Sold out';
+            });
+        }
+    } catch { }
+}
+refreshRemaining();
+setInterval(refreshRemaining, 30_000); // stay �24/7� up-to-date
diff --git a/discord.js b/discord.js
new file mode 100644
index 0000000..f550906
--- /dev/null
+++ b/discord.js
@@ -0,0 +1,23 @@
+// discord.js
+import fetch from "node-fetch";
+const WEBHOOK_URL = process.env.DISCORD_WEBHOOK_URL;
+
+export async function sendDiscordOrder({ user, items, total, refund = false }) {
+    const lines = items.map(i => `� ${i.qty} � ${i.name} ($${i.price.toFixed(2)})`).join("\n");
+    const title = refund ? "REFUND processed" : "New order paid";
+    const buyer = user?.discord_username || "unknown";
+
+    await fetch(WEBHOOK_URL, {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+            username: "Shop Bot",
+            embeds: [{
+                title,
+                description: `${lines}\n\nTotal: **$${total?.toFixed(2) ?? "�"}**`,
+                footer: { text: `Buyer: ${buyer} (ID ${user?.discord_user_id ?? "?"})` },
+                color: refund ? 0xcc3333 : 0x33cc66
+            }]
+        })
+    });
+}
diff --git a/inventory.js b/inventory.js
new file mode 100644
index 0000000..65af174
--- /dev/null
+++ b/inventory.js
@@ -0,0 +1,49 @@
+// inventory.js
+import express from "express";
+import { pool } from "./db.js"; // pg pool
+const router = express.Router();
+
+// Calculate how many server units are in this cart
+const serverIds = new Set(["server1", "server2", "server3"]);
+
+router.post("/api/reserve", async (req, res) => {
+    const { items } = req.body;               // [{id, qty, price}]
+    const want = items.filter(i => serverIds.has(i.id))
+        .reduce((a, i) => a + i.qty, 0);
+
+    if (want === 0) return res.json({ ok: true, remaining: await currentRemaining() });
+
+    const client = await pool.connect();
+    try {
+        await client.query("BEGIN");
+        const { rows } = await client.query("SELECT value_int FROM inventory_state WHERE key='server_slots_remaining' FOR UPDATE");
+        const remaining = rows[0].value_int;
+
+        if (remaining < want) {
+            await client.query("ROLLBACK");
+            return res.status(409).json({ ok: false, reason: "sold_out", remaining });
+        }
+
+        await client.query(
+            "UPDATE inventory_state SET value_int = value_int - $1 WHERE key='server_slots_remaining'",
+            [want]
+        );
+        await client.query("COMMIT");
+        res.json({ ok: true, remaining: remaining - want });
+    } catch (e) {
+        await client.query("ROLLBACK"); throw e;
+    } finally {
+        client.release();
+    }
+});
+
+async function currentRemaining() {
+    const { rows } = await pool.query("SELECT value_int FROM inventory_state WHERE key='server_slots_remaining'");
+    return rows[0].value_int;
+}
+
+router.get("/api/inventory", async (req, res) => {
+    res.json({ remaining: await currentRemaining() });
+});
+
+export default router;
diff --git a/payments.js b/payments.js
new file mode 100644
index 0000000..ab0ae21
--- /dev/null
+++ b/payments.js
@@ -0,0 +1,77 @@
+// payments.js
+import express from "express";
+import Stripe from "stripe";
+import { pool } from "./db.js";
+import { sendDiscordOrder } from "./discord.js";
+const router = express.Router();
+const stripe = new Stripe(process.env.STRIPE_SECRET);
+
+router.post("/api/create-checkout", async (req, res) => {
+    const user = req.session.user;
+    if (!user) return res.sendStatus(401);
+
+    const { items } = req.body;
+    // (Optional) enforce again that requested server qty <= currently reserved
+    const line_items = items.map(i => ({
+        quantity: i.qty,
+        price_data: {
+            currency: "usd",
+            product_data: { name: i.name },
+            unit_amount: Math.round(i.price * 100)
+        }
+    }));
+
+    const session = await stripe.checkout.sessions.create({
+        mode: "payment",
+        line_items,
+        success_url: process.env.SUCCESS_URL,
+        cancel_url: process.env.CANCEL_URL,
+        metadata: {
+            discord_user_id: user.id,
+            discord_username: user.username,
+            items: JSON.stringify(items)
+        }
+    });
+
+    res.json({ url: session.url });
+});
+
+// Webhook: payment succeeded / refunded
+router.post("/api/stripe/webhook", express.raw({ type: "application/json" }), async (req, res) => {
+    const sig = req.headers["stripe-signature"];
+    let evt;
+    try {
+        evt = stripe.webhooks.constructEvent(req.body, sig, process.env.STRIPE_WEBHOOK_SECRET);
+    } catch (e) {
+        return res.status(400).send(`Webhook Error: ${e.message}`);
+    }
+
+    if (evt.type === "checkout.session.completed") {
+        const s = evt.data.object;
+        const items = JSON.parse(s.metadata.items);
+        const total = items.reduce((a, i) => a + i.price * i.qty, 0);
+        await pool.query(
+            "INSERT INTO orders(id, discord_user_id, discord_username, line_items, total_cents, stripe_payment_intent, status) VALUES (gen_random_uuid(), $1,$2,$3,$4,$5,'paid')",
+            [s.metadata.discord_user_id, s.metadata.discord_username, JSON.stringify(items), Math.round(total * 100), s.payment_intent]
+        );
+        await sendDiscordOrder({ user: s.metadata, items, total });
+    }
+
+    if (evt.type === "charge.refunded") {
+        const pi = evt.data.object.payment_intent;
+        // Find the order and mark refunded
+        const { rows } = await pool.query("UPDATE orders SET status='refunded' WHERE stripe_payment_intent=$1 RETURNING line_items", [pi]);
+        if (rows.length) {
+            const items = rows[0].line_items;
+            const returned = items.filter(i => serverIds.has(i.id)).reduce((a, i) => a + i.qty, 0);
+            if (returned > 0) {
+                await pool.query("UPDATE inventory_state SET value_int = value_int + $1 WHERE key='server_slots_remaining'", [returned]);
+            }
+            await sendDiscordOrder({ refund: true, items });
+        }
+    }
+
+    res.json({ received: true });
+});
+
+export default router;