diff --git a/app/src/lib/types.ts b/app/src/lib/types.ts
index 17071d1..ef52edf 100644
--- a/app/src/lib/types.ts
+++ b/app/src/lib/types.ts
@@ -42,11 +42,22 @@ export interface Mitglied {
 	mandatsdatum?: string;
 }
 
+export type Rolle = 'admin' | 'trainer';
+
 export interface Gruppe {
 	id: string;
 	verein_id: string;
 	name: string;
 	beschreibung?: string;
+	trainer_ids: string[];
+}
+
+export interface Einladung {
+	id: string;
+	verein_id: string;
+	rolle: Rolle;
+	token: string;
+	genutzt: boolean;
 }
 
 export interface Beitrag {
diff --git a/app/src/routes/(app)/+layout.svelte b/app/src/routes/(app)/+layout.svelte
index f18d99c..f411994 100644
--- a/app/src/routes/(app)/+layout.svelte
+++ b/app/src/routes/(app)/+layout.svelte
@@ -67,14 +67,18 @@
 		return Uint8Array.from([...raw].map((c) => c.charCodeAt(0)));
 	}
 
-	const navItems: { href: string; label: string; icon: IconName }[] = [
-		{ href: '/',               label: 'Übersicht',    icon: 'house' },
-		{ href: '/mitglieder',     label: 'Mitglieder',   icon: 'users' },
-		{ href: '/termine',        label: 'Termine',      icon: 'calendar' },
-		{ href: '/beitraege',      label: 'Beiträge',     icon: 'currency-eur' },
-		{ href: '/nachrichten',    label: 'Nachrichten',  icon: 'envelope' },
-		{ href: '/einstellungen',  label: 'Einstellungen', icon: 'gear' },
+	const isAdmin = () => !pb.authStore.record?.rolle || pb.authStore.record?.rolle === 'admin';
+
+	const allNavItems: { href: string; label: string; icon: IconName; adminOnly?: boolean }[] = [
+		{ href: '/',              label: 'Übersicht',     icon: 'house' },
+		{ href: '/mitglieder',    label: 'Mitglieder',    icon: 'users' },
+		{ href: '/termine',       label: 'Termine',       icon: 'calendar' },
+		{ href: '/beitraege',     label: 'Beiträge',      icon: 'currency-eur', adminOnly: true },
+		{ href: '/nachrichten',   label: 'Nachrichten',   icon: 'envelope' },
+		{ href: '/einstellungen', label: 'Einstellungen', icon: 'gear' },
 	];
+
+	const navItems = $derived(allNavItems.filter(i => !i.adminOnly || isAdmin()));
 </script>
 
 <div class="shell">
diff --git a/app/src/routes/(app)/beitraege/+page.svelte b/app/src/routes/(app)/beitraege/+page.svelte
index 0383cba..bc820d8 100644
--- a/app/src/routes/(app)/beitraege/+page.svelte
+++ b/app/src/routes/(app)/beitraege/+page.svelte
@@ -1,5 +1,6 @@
 <script lang="ts">
 	import { pb } from '$lib/pb';
+	import { goto } from '$app/navigation';
 	import { onMount } from 'svelte';
 	import { generatePain008, downloadXml, minEinzugsdatum, type SepaPosition } from '$lib/sepa';
 	import type { Beitrag, Mitglied, Verein } from '$lib/types';
@@ -35,6 +36,7 @@
 	};
 
 	onMount(async () => {
+		if (pb.authStore.record?.rolle === 'trainer') { goto('/'); return; }
 		const vid = pb.authStore.record?.verein_id as string;
 		[beitraege, verein] = await Promise.all([
 			pb.collection('beitraege').getFullList<Beitrag>({ sort: 'name' }),
diff --git a/app/src/routes/(app)/einstellungen/+page.svelte b/app/src/routes/(app)/einstellungen/+page.svelte
index 7c327cd..455e201 100644
--- a/app/src/routes/(app)/einstellungen/+page.svelte
+++ b/app/src/routes/(app)/einstellungen/+page.svelte
@@ -2,7 +2,9 @@
 	import { pb } from '$lib/pb';
 	import { goto } from '$app/navigation';
 	import { onMount } from 'svelte';
-	import type { Verein } from '$lib/types';
+	import type { Verein, Gruppe } from '$lib/types';
+
+	const isAdmin = () => !pb.authStore.record?.rolle || pb.authStore.record?.rolle === 'admin';
 
 	let loading = $state(true);
 	let saving  = $state(false);
@@ -24,6 +26,12 @@
 	let iban          = $state('');
 	let bic           = $state('');
 
+	// Trainer
+	let trainer      = $state<any[]>([]);
+	let gruppen      = $state<Gruppe[]>([]);
+	let einladungUrl = $state('');
+	let einladungKopiert = $state(false);
+
 	let vereinId = '';
 
 	const bundeslaender = [
@@ -38,7 +46,15 @@
 
 	onMount(async () => {
 		vereinId = pb.authStore.record?.verein_id as string;
-		const v = await pb.collection('vereine').getOne<Verein>(vereinId);
+		const [v, alleUser, alleGruppen] = await Promise.all([
+			pb.collection('vereine').getOne<Verein>(vereinId),
+			isAdmin()
+				? pb.collection('users').getFullList({ filter: `verein_id = "${vereinId}"` })
+				: Promise.resolve([]),
+			pb.collection('gruppen').getFullList<Gruppe>({ sort: 'name' }),
+		]);
+		trainer = alleUser.filter((u: any) => u.rolle === 'trainer');
+		gruppen = alleGruppen;
 		name         = v.name          ?? '';
 		adresse      = v.adresse        ?? '';
 		plz          = v.plz            ?? '';
@@ -78,6 +94,28 @@
 		}
 	}
 
+	async function trainerEinladen() {
+		const token = crypto.randomUUID().replace(/-/g, '');
+		await pb.collection('einladungen').create({
+			verein_id: vereinId, rolle: 'trainer', token, genutzt: false,
+		});
+		einladungUrl = `${window.location.origin}/invite/${token}`;
+		einladungKopiert = false;
+	}
+
+	async function trainerEntfernen(uid: string) {
+		if (!confirm('Trainer wirklich entfernen?')) return;
+		await pb.collection('users').update(uid, { rolle: null, verein_id: null });
+		trainer = trainer.filter(t => t.id !== uid);
+	}
+
+	function trainerGruppen(uid: string): string {
+		return gruppen
+			.filter(g => (g.trainer_ids ?? []).includes(uid))
+			.map(g => g.name)
+			.join(', ') || '—';
+	}
+
 	function abmelden() {
 		pb.authStore.clear();
 		goto('/login');
@@ -168,6 +206,44 @@
 			</div>
 		</section>
 
+		{#if isAdmin()}
+			<section>
+				<h2>Trainer</h2>
+				{#if trainer.length === 0}
+					<p class="sepa-hint">Noch keine Trainer eingeladen.</p>
+				{:else}
+					<ul class="trainer-liste">
+						{#each trainer as t (t.id)}
+							<li>
+								<div class="trainer-info">
+									<span class="trainer-name">{t.name}</span>
+									<span class="trainer-gruppen">{trainerGruppen(t.id)}</span>
+								</div>
+								<button type="button" class="btn-remove" onclick={() => trainerEntfernen(t.id)}>Entfernen</button>
+							</li>
+						{/each}
+					</ul>
+				{/if}
+
+				<button type="button" class="btn-einladen" onclick={trainerEinladen}>
+					+ Trainer einladen
+				</button>
+
+				{#if einladungUrl}
+					<div class="invite-box">
+						<p class="invite-label">Einladungslink – einmalig verwendbar:</p>
+						<div class="invite-url">{einladungUrl}</div>
+						<button type="button" class="btn-kopieren" onclick={async () => {
+							await navigator.clipboard.writeText(einladungUrl);
+							einladungKopiert = true;
+						}}>
+							{einladungKopiert ? 'Kopiert ✓' : 'Link kopieren'}
+						</button>
+					</div>
+				{/if}
+			</section>
+		{/if}
+
 		{#if error}
 			<p class="error">{error}</p>
 		{/if}
@@ -252,6 +328,47 @@
 		margin-bottom: 1.5rem;
 	}
 
+	.trainer-liste {
+		list-style: none; padding: 0; margin: 0 0 0.75rem;
+		border: 1px solid #e2e8f0; border-radius: 8px; overflow: hidden;
+	}
+	.trainer-liste li {
+		display: flex; align-items: center; justify-content: space-between;
+		gap: 0.75rem; padding: 0.7rem 0.85rem;
+		border-bottom: 1px solid #f1f5f9;
+	}
+	.trainer-liste li:last-child { border-bottom: none; }
+	.trainer-info { display: flex; flex-direction: column; gap: 0.1rem; }
+	.trainer-name   { font-size: 0.9rem; font-weight: 600; color: #1e293b; }
+	.trainer-gruppen { font-size: 0.75rem; color: #94a3b8; }
+	.btn-remove {
+		padding: 0.3rem 0.65rem; background: none;
+		border: 1px solid #fca5a5; border-radius: 6px;
+		font-size: 0.78rem; color: #dc2626; cursor: pointer; flex-shrink: 0;
+	}
+	.btn-einladen {
+		width: 100%; padding: 0.65rem; background: none;
+		border: 1.5px dashed #e2e8f0; border-radius: 8px;
+		font-size: 0.9rem; color: #1e40af; cursor: pointer;
+		transition: border-color 0.15s;
+	}
+	.btn-einladen:hover { border-color: #1e40af; }
+	.invite-box {
+		margin-top: 0.75rem; padding: 0.85rem;
+		background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px;
+		display: flex; flex-direction: column; gap: 0.5rem;
+	}
+	.invite-label { font-size: 0.78rem; color: #64748b; margin: 0; }
+	.invite-url {
+		font-size: 0.78rem; font-family: monospace;
+		color: #1e293b; word-break: break-all;
+	}
+	.btn-kopieren {
+		padding: 0.4rem 0.75rem; background: #1e40af; color: #fff;
+		border: none; border-radius: 6px; font-size: 0.82rem;
+		cursor: pointer; align-self: flex-start;
+	}
+
 	.btn-logout {
 		width: 100%;
 		padding: 0.75rem;
diff --git a/app/src/routes/invite/[token]/+page.svelte b/app/src/routes/invite/[token]/+page.svelte
new file mode 100644
index 0000000..66efda3
--- /dev/null
+++ b/app/src/routes/invite/[token]/+page.svelte
@@ -0,0 +1,178 @@
+<script lang="ts">
+	import { goto } from '$app/navigation';
+	import { page } from '$app/stores';
+	import { onMount } from 'svelte';
+	import { pb } from '$lib/pb';
+	import type { Einladung } from '$lib/types';
+
+	const token = $derived($page.params.token as string);
+
+	let einladung   = $state<Einladung | null>(null);
+	let vereinName  = $state('');
+	let fehler      = $state('');
+	let loading     = $state(true);
+
+	let name     = $state('');
+	let email    = $state('');
+	let password = $state('');
+	let passwordConfirm = $state('');
+	let saving   = $state(false);
+	let formError = $state('');
+
+	onMount(async () => {
+		if (pb.authStore.isValid) {
+			goto('/');
+			return;
+		}
+		try {
+			const inv = await pb.collection('einladungen')
+				.getFirstListItem<Einladung>(`token = "${token}" && genutzt = false`, {
+					expand: 'verein_id',
+				});
+			einladung  = inv;
+			vereinName = (inv as any).expand?.verein_id?.name ?? '';
+		} catch {
+			fehler = 'Dieser Einladungslink ist ungültig oder wurde bereits verwendet.';
+		} finally {
+			loading = false;
+		}
+	});
+
+	async function registrieren() {
+		if (!einladung) return;
+		if (password !== passwordConfirm) { formError = 'Passwörter stimmen nicht überein.'; return; }
+		formError = ''; saving = true;
+		try {
+			await pb.collection('users').create({
+				email:          email.trim(),
+				password,
+				passwordConfirm,
+				name:           name.trim(),
+				verein_id:      einladung.verein_id,
+				rolle:          einladung.rolle,
+			});
+			await pb.collection('users').authWithPassword(email.trim(), password);
+			await pb.collection('einladungen').update(einladung.id, { genutzt: true });
+			goto('/');
+		} catch (e: unknown) {
+			formError = e instanceof Error ? e.message : 'Registrierung fehlgeschlagen.';
+		} finally {
+			saving = false;
+		}
+	}
+</script>
+
+<svelte:head><title>Einladung — vereins.haus</title></svelte:head>
+
+<div class="shell">
+	<div class="logo">
+		<img src="/favicon.svg" alt="" width="36" height="36" />
+		vereins.haus
+	</div>
+
+	<div class="card">
+		{#if loading}
+			<p class="hint">Prüfe Einladung…</p>
+
+		{:else if fehler}
+			<div class="icon-ring error">✕</div>
+			<h1>Ungültige Einladung</h1>
+			<p class="beschr">{fehler}</p>
+
+		{:else}
+			<div class="icon-ring">🎉</div>
+			<h1>Du wurdest eingeladen!</h1>
+			<p class="beschr">
+				Du wirst als <strong>{einladung?.rolle === 'trainer' ? 'Trainer' : 'Admin'}</strong>
+				zum Verein <strong>„{vereinName}"</strong> hinzugefügt.
+			</p>
+
+			<form onsubmit={(e) => { e.preventDefault(); registrieren(); }}>
+				<div class="field">
+					<label for="name">Dein Name *</label>
+					<input id="name" type="text" bind:value={name} required autocomplete="name" />
+				</div>
+				<div class="field">
+					<label for="email">E-Mail *</label>
+					<input id="email" type="email" bind:value={email} required autocomplete="email" />
+				</div>
+				<div class="field">
+					<label for="pw">Passwort *</label>
+					<input id="pw" type="password" bind:value={password} required minlength="8" autocomplete="new-password" />
+				</div>
+				<div class="field">
+					<label for="pw2">Passwort bestätigen *</label>
+					<input id="pw2" type="password" bind:value={passwordConfirm} required autocomplete="new-password" />
+				</div>
+
+				{#if formError}
+					<p class="error">{formError}</p>
+				{/if}
+
+				<button type="submit" class="btn-primary" disabled={saving || !name || !email || !password}>
+					{saving ? 'Registrieren…' : 'Konto erstellen & beitreten'}
+				</button>
+			</form>
+		{/if}
+	</div>
+</div>
+
+<style>
+	.shell {
+		min-height: 100dvh;
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		justify-content: center;
+		padding: 1.5rem 1rem;
+		background: #f8fafc;
+	}
+	.logo {
+		display: flex;
+		align-items: center;
+		gap: 0.5rem;
+		font-size: 1.2rem;
+		font-weight: 700;
+		color: #0f172a;
+		letter-spacing: -0.02em;
+		margin-bottom: 1.5rem;
+	}
+	.card {
+		background: #fff;
+		border: 1px solid #e2e8f0;
+		border-radius: 16px;
+		padding: 2rem 1.5rem;
+		width: 100%;
+		max-width: 420px;
+		display: flex;
+		flex-direction: column;
+		gap: 0.75rem;
+	}
+	.icon-ring {
+		width: 3.5rem; height: 3.5rem; border-radius: 50%;
+		background: #e0e7ff; display: flex;
+		align-items: center; justify-content: center;
+		font-size: 1.5rem; margin: 0 auto;
+	}
+	.icon-ring.error { background: #fee2e2; }
+	h1 { font-size: 1.2rem; font-weight: 700; color: #1e293b; text-align: center; margin: 0; }
+	.beschr { font-size: 0.9rem; color: #64748b; text-align: center; line-height: 1.55; margin: 0; }
+	.hint { color: #94a3b8; text-align: center; }
+	.field { display: flex; flex-direction: column; gap: 0.3rem; margin-bottom: 0.5rem; }
+	label { font-size: 0.875rem; font-weight: 500; color: #475569; }
+	input {
+		padding: 0.65rem 0.85rem;
+		border: 1.5px solid #e2e8f0; border-radius: 8px;
+		font-size: 1rem; background: #fff; width: 100%; box-sizing: border-box;
+		transition: border-color 0.15s;
+	}
+	input:focus { outline: none; border-color: #1e40af; }
+	.error { color: #dc2626; font-size: 0.875rem; margin: 0; }
+	.btn-primary {
+		width: 100%; padding: 0.75rem; background: #1e40af; color: #fff;
+		border: none; border-radius: 8px; font-size: 1rem; font-weight: 600;
+		cursor: pointer; margin-top: 0.25rem; transition: background 0.15s;
+	}
+	.btn-primary:hover:not(:disabled) { background: #1d3a9e; }
+	.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }
+</style>
diff --git a/pocketbase/pb_migrations/1779230500_rollen.js b/pocketbase/pb_migrations/1779230500_rollen.js
new file mode 100644
index 0000000..a998ab1
--- /dev/null
+++ b/pocketbase/pb_migrations/1779230500_rollen.js
@@ -0,0 +1,92 @@
+/// <reference path="../pb_data/types.d.ts" />
+migrate((app) => {
+
+  // Users: +rolle, listRule für verein-weite Sichtbarkeit
+  {
+    const c = app.findCollectionByNameOrId("_pb_users_auth_")
+    c.fields.addAt(99, new Field({
+      "type": "select", "id": "select2001000070", "name": "rolle",
+      "help": "", "hidden": false, "presentable": false, "required": false, "system": false,
+      "maxSelect": 1, "values": ["admin", "trainer"]
+    }))
+    c.listRule = "@request.auth.verein_id = verein_id"
+    app.save(c)
+  }
+
+  // Gruppen: +trainer_ids (welche User betreuen diese Gruppe)
+  {
+    const c = app.findCollectionByNameOrId("pbc_3099069179")
+    c.fields.addAt(99, new Field({
+      "type": "relation", "id": "relation2001000071", "name": "trainer_ids",
+      "help": "", "hidden": false, "presentable": false, "required": false, "system": false,
+      "cascadeDelete": false, "collectionId": "_pb_users_auth_",
+      "maxSelect": 99, "minSelect": 0
+    }))
+    app.save(c)
+  }
+
+  // Einladungen-Collection
+  {
+    const c = new Collection({
+      "createRule": "@request.auth.verein_id = verein_id",
+      "deleteRule": "@request.auth.verein_id = verein_id",
+      "listRule":   "@request.auth.verein_id = verein_id",
+      "viewRule":   "",
+      "updateRule": "@request.auth.verein_id = verein_id",
+      "fields": [
+        {
+          "autogeneratePattern": "[a-z0-9]{15}", "id": "text3208210256",
+          "max": 15, "min": 15, "name": "id", "pattern": "^[a-z0-9]+$",
+          "primaryKey": true, "required": true, "system": true, "type": "text",
+          "help": "", "hidden": false, "presentable": false
+        },
+        {
+          "type": "relation", "id": "relation2001000072", "name": "verein_id",
+          "help": "", "hidden": false, "presentable": false, "required": true, "system": false,
+          "cascadeDelete": true, "collectionId": "pbc_3589557411", "maxSelect": 1, "minSelect": 0
+        },
+        {
+          "type": "select", "id": "select2001000073", "name": "rolle",
+          "help": "", "hidden": false, "presentable": false, "required": true, "system": false,
+          "maxSelect": 1, "values": ["admin", "trainer"]
+        },
+        {
+          "type": "text", "id": "text2001000074", "name": "token",
+          "help": "", "hidden": false, "presentable": false, "required": true, "system": false,
+          "autogeneratePattern": "", "min": 0, "max": 0, "pattern": ""
+        },
+        {
+          "type": "bool", "id": "bool2001000075", "name": "genutzt",
+          "help": "", "hidden": false, "presentable": false, "required": false, "system": false
+        }
+      ],
+      "id": "pbc_einladungen",
+      "indexes": ["CREATE UNIQUE INDEX idx_einladungen_token ON einladungen (token)"],
+      "name": "einladungen",
+      "system": false,
+      "type": "base"
+    })
+    app.save(c)
+  }
+
+}, (app) => {
+
+  {
+    const c = app.findCollectionByNameOrId("_pb_users_auth_")
+    c.fields.removeById("select2001000070")
+    c.listRule = ""
+    app.save(c)
+  }
+
+  {
+    const c = app.findCollectionByNameOrId("pbc_3099069179")
+    c.fields.removeById("relation2001000071")
+    app.save(c)
+  }
+
+  {
+    const c = app.findCollectionByNameOrId("pbc_einladungen")
+    app.delete(c)
+  }
+
+})