feat: [frontend] Create the register and onboarding flows

frontend/src/app.css

@@ -18,13 +18,11 @@
 	font-weight: normal;
 }
 
-
 /* --------------------------------------------------------------------------
    Design Tokens
    -------------------------------------------------------------------------- */
 
 :root {
-
 	/* --- Color: Primary --- */
 	--color-primary: #516356;
 	--color-on-primary: #e9fded;
@@ -133,7 +131,9 @@
    Reset & Base
    -------------------------------------------------------------------------- */
 
-*, *::before, *::after {
+*,
+*::before,
+*::after {
 	box-sizing: border-box;
 	margin: 0;
 	padding: 0;
@@ -313,6 +313,16 @@ body {
 	transition: border-color var(--duration-fast) var(--ease-standard);
 }
 
+.field-disabled {
+	font-family: var(--font-body);
+	font-size: var(--text-body-lg);
+	color: var(--color-on-surface-variant);
+	padding: var(--space-2) var(--space-3);
+	background-color: var(--color-surface-container);
+	border-radius: var(--radius-sm) var(--radius-sm) 0 0;
+	border-bottom: 1px solid color-mix(in srgb, var(--color-outline-variant) 20%, transparent);
+}
+
 .field-input::placeholder {
 	color: var(--color-outline-variant);
 }

frontend/src/routes/app/+layout.server.ts

@@ -0,0 +1,36 @@
+import { redirect, type ServerLoad } from '@sveltejs/kit';
+import { getAccountStatusApiAccountStatusGet } from '../../client/sdk.gen.ts';
+import type { AccountStatusResponse } from '../../client/types.gen.ts';
+
+const PROBLEM_FLAGS_COOKIE_NAME = 'account_problem_flags';
+export const load: ServerLoad = async ({ locals, url, cookies }) => {
+	const cachedFlags = cookies.get(PROBLEM_FLAGS_COOKIE_NAME);
+	let problemFlags: string[] = [];
+
+	if (cachedFlags === undefined) {
+		const { data } = await getAccountStatusApiAccountStatusGet({
+			headers: { Authorization: `Bearer ${locals.authToken}` }
+		});
+
+		const flags = (data as AccountStatusResponse)?.problem_flags ?? [];
+
+		// 15-minute cookie-based cache
+		cookies.set(PROBLEM_FLAGS_COOKIE_NAME, JSON.stringify(flags), {
+			path: '/',
+			maxAge: 60 * 15
+		});
+
+		problemFlags = flags;
+	}
+
+	// Redirect to onboarding if not yet completed — guard against redirect loop
+	if (problemFlags.includes('no_onboarding') && !url.pathname.startsWith('/app/onboarding')) {
+		redirect(307, '/app/onboarding');
+	}
+
+	// Don't hard-block on unverified email yet (login gate is not active),
+	// but surface the flag so the layout can show a warning banner.
+	return {
+		emailUnverified: problemFlags.includes('unvalidated_email')
+	};
+};

frontend/src/routes/app/+layout.svelte

@@ -1,9 +1,31 @@
 <script lang="ts">
 	import TopNav from '$lib/components/TopNav.svelte';
+	import type { LayoutProps } from './$types';
 
-	const { children } = $props();
+	const { data, children }: LayoutProps = $props();
 </script>
 
 <TopNav />
 
+{#if data.emailUnverified}
+	<div class="email-warning" role="alert">
+		Your email address is not yet verified. Check your inbox for a verification link.
+	</div>
+{/if}
+
 {@render children()}
+
+<style>
+	.email-warning {
+		background-color: var(--color-surface-container-high);
+		color: var(--color-primary);
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		font-weight: var(--weight-medium);
+		letter-spacing: var(--tracking-wide);
+		text-transform: uppercase;
+		text-align: center;
+		padding: var(--space-2) var(--space-5);
+		width: 100%;
+	}
+</style>

frontend/src/routes/app/onboarding/+page.server.ts

@@ -0,0 +1,51 @@
+import { redirect, type Actions, type ServerLoad } from '@sveltejs/kit';
+import {
+	getOnboardingBffAccountOnboardingGet,
+	completeOnboardingApiAccountOnboardingPost
+} from '../../../client/sdk.gen.ts';
+import type { OnboardingResponse } from '../../../client/types.gen.ts';
+
+export const load: ServerLoad = async ({ locals }) => {
+	const { data } = await getOnboardingBffAccountOnboardingGet({
+		headers: { Authorization: `Bearer ${locals.authToken}` }
+	});
+
+	const onboarding = data as OnboardingResponse;
+
+	return {
+		languagePairs: onboarding.language_pairs,
+		proficiencies: onboarding.proficiencies
+	};
+};
+
+export const actions = {
+	default: async ({ request, locals }) => {
+		const data = await request.formData();
+		const humanName = data.get('human_name') as string;
+		const languagePair = data.get('language_pair') as string;
+		const proficiencies = data.getAll('proficiency') as string[];
+
+		if (!humanName?.trim()) return { error: 'Please enter your name.' };
+		if (!languagePair) return { error: 'Please select a language to learn.' };
+		if (!proficiencies.length) return { error: 'Please select at least one proficiency level.' };
+		if (proficiencies.length > 2) return { error: 'Select a maximum of two proficiency levels.' };
+
+		const { response } = await completeOnboardingApiAccountOnboardingPost({
+			headers: {
+				Authorization: `Bearer ${locals.authToken}`,
+				'Content-Type': 'application/json'
+			},
+			body: {
+				human_name: humanName.trim(),
+				language_pairs: [languagePair],
+				proficiencies: [proficiencies]
+			}
+		});
+
+		if (response.status === 200) {
+			redirect(303, '/app');
+		}
+
+		return { error: 'Something went wrong. Please try again.' };
+	}
+} satisfies Actions;

frontend/src/routes/app/onboarding/+page.svelte

@@ -0,0 +1,199 @@
+<script lang="ts">
+	import type { PageProps } from './$types';
+	import type { LanguagePairOption } from '../../../client/types.gen.ts';
+
+	const { data, form }: PageProps = $props();
+
+	let selectedPairValue = $state('');
+	let selectedProficiencies = $state<string[]>([]);
+
+	const selectedPair = $derived(
+		data.languagePairs.find((p: LanguagePairOption) => p.value === selectedPairValue) ?? null
+	);
+</script>
+
+<div class="page">
+	<div class="container">
+		<header class="header">
+			<p class="eyebrow">Getting started</p>
+			<h1 class="heading">Let's get you set up</h1>
+			<p class="subheading">Tell us a bit about yourself and what you'd like to learn.</p>
+		</header>
+
+		<form method="POST" class="form">
+			<!-- Name -->
+			<div class="field">
+				<label for="human_name" class="field-label">Your name</label>
+				<input
+					id="human_name"
+					name="human_name"
+					class="field-input"
+					type="text"
+					placeholder="Alice"
+					required
+				/>
+			</div>
+
+			<!-- Language pair -->
+			<div class="field">
+				<label for="language_pair" class="field-label">I want to learn</label>
+				<select
+					id="language_pair"
+					name="language_pair"
+					class="field-select"
+					required
+					bind:value={selectedPairValue}
+				>
+					<option value="" disabled selected>Select a language…</option>
+					{#each data.languagePairs as pair}
+						<option value={pair.value}>{pair.label}</option>
+					{/each}
+				</select>
+				{#if selectedPair}
+					<p class="field-hint">{selectedPair.description}</p>
+				{/if}
+			</div>
+
+			<!-- Proficiency -->
+			<fieldset class="field">
+				<legend class="field-label">My current level</legend>
+				<p class="field-hint">Select one or two levels that describe where you are now.</p>
+				<div class="proficiency-list">
+					{#each data.proficiencies as level}
+						{@const isChecked = selectedProficiencies.includes(level.value)}
+						{@const isDisabled = selectedProficiencies.length >= 2 && !isChecked}
+						<label class="proficiency-option" class:disabled={isDisabled}>
+							<input
+								type="checkbox"
+								name="proficiency"
+								value={level.value}
+								disabled={isDisabled}
+								onchange={(e) => {
+									if (e.currentTarget.checked) {
+										selectedProficiencies = [...selectedProficiencies, level.value];
+									} else {
+										selectedProficiencies = selectedProficiencies.filter((p) => p !== level.value);
+									}
+								}}
+							/>
+							<span class="proficiency-label">{level.label}</span>
+							<span class="proficiency-description">{level.description}</span>
+						</label>
+					{/each}
+				</div>
+			</fieldset>
+
+			{#if form?.error}
+				<div class="alert alert-error">{form.error}</div>
+			{/if}
+
+			<button type="submit" class="btn btn-primary">Start learning →</button>
+		</form>
+	</div>
+</div>
+
+<style>
+	.page {
+		display: flex;
+		justify-content: center;
+		padding: var(--space-10) var(--space-5);
+		min-height: 100svh;
+		background-color: var(--color-surface);
+	}
+
+	.container {
+		width: 100%;
+		max-width: 32rem;
+	}
+
+	/* -----------------------------------------------------------------------
+	   Header
+	   ----------------------------------------------------------------------- */
+
+	.header {
+		margin-bottom: var(--space-8);
+	}
+
+	.eyebrow {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		font-weight: var(--weight-medium);
+		letter-spacing: var(--tracking-wide);
+		text-transform: uppercase;
+		color: var(--color-primary);
+		margin-bottom: var(--space-2);
+	}
+
+	.heading {
+		font-family: var(--font-display);
+		font-size: var(--text-display-md);
+		font-weight: var(--weight-bold);
+		line-height: var(--leading-tight);
+		letter-spacing: var(--tracking-tight);
+		color: var(--color-on-surface);
+		margin-bottom: var(--space-3);
+	}
+
+	.subheading {
+		font-family: var(--font-body);
+		font-size: var(--text-body-lg);
+		color: var(--color-on-surface-variant);
+		line-height: var(--leading-relaxed);
+	}
+
+	/* -----------------------------------------------------------------------
+	   Proficiency checkboxes
+	   ----------------------------------------------------------------------- */
+
+	.proficiency-list {
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-2);
+		margin-top: var(--space-3);
+	}
+
+	.proficiency-option {
+		display: grid;
+		grid-template-columns: auto 1fr;
+		grid-template-rows: auto auto;
+		column-gap: var(--space-3);
+		row-gap: var(--space-1);
+		align-items: start;
+		padding: var(--space-3);
+		background-color: var(--color-surface-container-low);
+		border-radius: var(--radius-md);
+		cursor: pointer;
+		transition: background-color var(--duration-fast) var(--ease-standard);
+	}
+
+	.proficiency-option:hover:not(.disabled) {
+		background-color: var(--color-surface-container);
+	}
+
+	.proficiency-option.disabled {
+		opacity: 0.45;
+		cursor: not-allowed;
+	}
+
+	.proficiency-option input[type='checkbox'] {
+		grid-row: 1 / 3;
+		margin-top: 0.15rem;
+		accent-color: var(--color-primary);
+		width: 1rem;
+		height: 1rem;
+		cursor: inherit;
+	}
+
+	.proficiency-label {
+		font-family: var(--font-label);
+		font-size: var(--text-body-sm);
+		font-weight: var(--weight-semibold);
+		color: var(--color-on-surface);
+	}
+
+	.proficiency-description {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		color: var(--color-on-surface-variant);
+	}
+</style>

frontend/src/routes/app/profile/+page.server.ts

@@ -0,0 +1,59 @@
+import { type Actions, type ServerLoad } from '@sveltejs/kit';
+import {
+	getAccountBffAccountGet,
+	getOnboardingBffAccountOnboardingGet,
+	completeOnboardingApiAccountOnboardingPost
+} from '../../../client/sdk.gen.ts';
+import type { AccountResponse, OnboardingResponse } from '../../../client/types.gen.ts';
+
+export const load: ServerLoad = async ({ locals }) => {
+	const auth = { headers: { Authorization: `Bearer ${locals.authToken}` } };
+
+	const [accountResult, onboardingResult] = await Promise.all([
+		getAccountBffAccountGet(auth),
+		getOnboardingBffAccountOnboardingGet(auth)
+	]);
+
+	const account = accountResult.data as AccountResponse;
+	const onboarding = onboardingResult.data as OnboardingResponse;
+
+	return {
+		account,
+		languagePairs: onboarding.language_pairs,
+		proficiencies: onboarding.proficiencies
+	};
+};
+
+export const actions = {
+	default: async ({ request, locals }) => {
+		const formData = await request.formData();
+		const humanName = formData.get('human_name') as string;
+		const languagePair = formData.get('language_pair') as string;
+		const proficiencies = formData.getAll('proficiency') as string[];
+
+		if (!humanName?.trim()) return { success: false, error: 'Please enter your name.' };
+		if (!languagePair) return { success: false, error: 'Please select a language to learn.' };
+		if (!proficiencies.length)
+			return { success: false, error: 'Please select at least one proficiency level.' };
+		if (proficiencies.length > 2)
+			return { success: false, error: 'Select a maximum of two proficiency levels.' };
+
+		const { response } = await completeOnboardingApiAccountOnboardingPost({
+			headers: {
+				Authorization: `Bearer ${locals.authToken}`,
+				'Content-Type': 'application/json'
+			},
+			body: {
+				human_name: humanName.trim(),
+				language_pairs: [languagePair],
+				proficiencies: [proficiencies]
+			}
+		});
+
+		if (response.status === 200) {
+			return { success: true };
+		}
+
+		return { success: false, error: 'Something went wrong. Please try again.' };
+	}
+} satisfies Actions;

frontend/src/routes/app/profile/+page.svelte

@@ -1,13 +1,114 @@
+<script lang="ts">
+	import type { PageProps } from './$types';
+	import type { LanguagePairOption } from '../../../client/types.gen.ts';
+
+	const { data, form }: PageProps = $props();
+
+	// Pre-populate from the first language pair on the account (if any)
+	const currentPair = data.account.language_pairs[0];
+	const currentPairValue = currentPair
+		? `${currentPair.source_language},${currentPair.target_language}`
+		: '';
+
+	let selectedPairValue = $state(currentPairValue);
+	let selectedProficiencies = $state<string[]>(currentPair?.proficiencies ?? []);
+
+	const selectedPair = $derived(
+		data.languagePairs.find((p: LanguagePairOption) => p.value === selectedPairValue) ?? null
+	);
+</script>
+
 <div class="page">
 	<header>
 		<p class="form-eyebrow">Account</p>
 		<h1 class="form-title">Profile</h1>
 	</header>
 
-	<p class="coming-soon">Profile settings coming soon.</p>
+	{#if form?.success}
+		<div class="alert alert-success">Profile saved.</div>
+	{/if}
 
+	<form method="POST" class="form">
+		<!-- Email — read-only -->
+		<div class="field">
+			<p class="field-label">Email</p>
+			<p class="field-disabled">{data.account.email}</p>
+		</div>
+
+		<!-- Name -->
+		<div class="field">
+			<label for="human_name" class="field-label">Name</label>
+			<input
+				id="human_name"
+				name="human_name"
+				class="field-input"
+				type="text"
+				placeholder="Alice"
+				value={data.account.human_name ?? ''}
+				required
+			/>
+		</div>
+
+		<!-- Language pair -->
+		<div class="field">
+			<label for="language_pair" class="field-label">I am learning</label>
+			<select
+				id="language_pair"
+				name="language_pair"
+				class="field-select"
+				required
+				bind:value={selectedPairValue}
+			>
+				<option value="" disabled>Select a language…</option>
+				{#each data.languagePairs as pair}
+					<option value={pair.value}>{pair.label}</option>
+				{/each}
+			</select>
+			{#if selectedPair}
+				<p class="field-hint">{selectedPair.description}</p>
+			{/if}
+		</div>
+
+		<!-- Proficiency -->
+		<fieldset class="field">
+			<legend class="field-label">My current level</legend>
+			<p class="field-hint">Select one or two levels that describe where you are now.</p>
+			<div class="proficiency-list">
+				{#each data.proficiencies as level}
+					{@const isChecked = selectedProficiencies.includes(level.value)}
+					{@const isDisabled = selectedProficiencies.length >= 2 && !isChecked}
+					<label class="proficiency-option" class:disabled={isDisabled}>
+						<input
+							type="checkbox"
+							name="proficiency"
+							value={level.value}
+							checked={isChecked}
+							disabled={isDisabled}
+							onchange={(e) => {
+								if (e.currentTarget.checked) {
+									selectedProficiencies = [...selectedProficiencies, level.value];
+								} else {
+									selectedProficiencies = selectedProficiencies.filter((p) => p !== level.value);
+								}
+							}}
+						/>
+						<span class="proficiency-label">{level.label}</span>
+						<span class="proficiency-description">{level.description}</span>
+					</label>
+				{/each}
+			</div>
+		</fieldset>
+
+		{#if form?.error}
+			<div class="alert alert-error">{form.error}</div>
+		{/if}
+
+		<div class="actions">
+			<button type="submit" class="btn btn-primary">Save changes</button>
 			<a href="/logout" class="btn btn-ghost">Sign out</a>
 		</div>
+	</form>
+</div>
 
 <style>
 	.page {
@@ -16,12 +117,87 @@
 		padding: var(--space-8) var(--space-6);
 		display: flex;
 		flex-direction: column;
-		gap: var(--space-5);
+		gap: var(--space-6);
 	}
 
-	.coming-soon {
-		font-family: var(--font-body);
-		font-size: var(--text-body-md);
+	/* -----------------------------------------------------------------------
+	   Success alert
+	   ----------------------------------------------------------------------- */
+
+	.alert-success {
+		padding: var(--space-3);
+		border-radius: var(--radius-md);
+		font-family: var(--font-label);
+		font-size: var(--text-body-sm);
+		background-color: color-mix(in srgb, var(--color-primary) 10%, var(--color-surface));
+		color: var(--color-primary);
+		border-left: 3px solid var(--color-primary);
+	}
+
+	/* -----------------------------------------------------------------------
+	   Proficiency checkboxes
+	   ----------------------------------------------------------------------- */
+
+	.proficiency-list {
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-2);
+		margin-top: var(--space-3);
+	}
+
+	.proficiency-option {
+		display: grid;
+		grid-template-columns: auto 1fr;
+		grid-template-rows: auto auto;
+		column-gap: var(--space-3);
+		row-gap: var(--space-1);
+		align-items: start;
+		padding: var(--space-3);
+		background-color: var(--color-surface-container-low);
+		border-radius: var(--radius-md);
+		cursor: pointer;
+		transition: background-color var(--duration-fast) var(--ease-standard);
+	}
+
+	.proficiency-option:hover:not(.disabled) {
+		background-color: var(--color-surface-container);
+	}
+
+	.proficiency-option.disabled {
+		opacity: 0.45;
+		cursor: not-allowed;
+	}
+
+	.proficiency-option input[type='checkbox'] {
+		grid-row: 1 / 3;
+		margin-top: 0.15rem;
+		accent-color: var(--color-primary);
+		width: 1rem;
+		height: 1rem;
+		cursor: inherit;
+	}
+
+	.proficiency-label {
+		font-family: var(--font-label);
+		font-size: var(--text-body-sm);
+		font-weight: var(--weight-semibold);
+		color: var(--color-on-surface);
+	}
+
+	.proficiency-description {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
 		color: var(--color-on-surface-variant);
 	}
+
+	/* -----------------------------------------------------------------------
+	   Action row
+	   ----------------------------------------------------------------------- */
+
+	.actions {
+		display: flex;
+		align-items: center;
+		gap: var(--space-4);
+		padding-top: var(--space-2);
+	}
 </style>

frontend/src/routes/login/+page.server.ts

@@ -1,4 +1,4 @@
-import { loginAuthLoginPost } from '../../client/sdk.gen.ts';
+import { loginApiAuthLoginPost } from '../../client/sdk.gen.ts';
 import { redirect, type Actions, type ServerLoad } from '@sveltejs/kit';
 
 export const load: ServerLoad = async ({ locals }) => {
@@ -17,7 +17,7 @@ export const actions = {
 		const email = formData.get('email') as string;
 		const password = formData.get('password') as string;
 
-		const { response, data } = await loginAuthLoginPost({
+		const { response, data } = await loginApiAuthLoginPost({
 			headers: {
 				'Content-Type': 'application/json',
 				Authorization: locals.authToken ? `Bearer ${locals.authToken}` : ''

frontend/src/routes/register/+page.server.ts

@@ -0,0 +1,28 @@
+import { redirect, type Actions, type ServerLoad } from '@sveltejs/kit';
+import { registerApiAuthRegisterPost } from '../../client/sdk.gen.ts';
+
+export const load: ServerLoad = async ({ locals }) => {
+	if (locals.authToken) redirect(307, '/app');
+	return {};
+};
+
+export const actions = {
+	default: async ({ request }) => {
+		const data = await request.formData();
+		const email = data.get('email') as string;
+		const password = data.get('password') as string;
+
+		const { response, data: body } = await registerApiAuthRegisterPost({
+			body: { email, password }
+		});
+
+		if (response.status === 201 && body?.success) {
+			return { success: true };
+		}
+
+		return {
+			success: false,
+			error: body?.error_message ?? 'Registration failed. Please try again.'
+		};
+	}
+} satisfies Actions;

frontend/src/routes/register/+page.svelte

@@ -0,0 +1,181 @@
+<script lang="ts">
+	import type { PageProps } from './$types';
+	const { form }: PageProps = $props();
+</script>
+
+<div class="page">
+	<aside class="brand-panel" aria-hidden="true">
+		<div class="brand-content">
+			<p class="brand-eyebrow">Language Learning App</p>
+			<h1 class="brand-headline">Read.<br />Listen.<br />Remember.</h1>
+		</div>
+	</aside>
+
+	<main class="form-panel">
+		<div class="form-inner">
+			<header class="form-header">
+				<p class="form-eyebrow">Language Learning App</p>
+				<h2 class="form-title">Create an account</h2>
+			</header>
+
+			{#if form?.success}
+				<div class="success-state">
+					<p class="success-message">Account created. Check your inbox for a verification link.</p>
+					<p class="success-hint">In development, the link is printed to the API server logs.</p>
+					<a href="/login" class="btn btn-primary">Sign in</a>
+				</div>
+			{:else}
+				<form method="POST" class="form">
+					{#if form?.error}
+						<div class="alert alert-error">{form.error}</div>
+					{/if}
+
+					<div class="field">
+						<label for="email" class="field-label">Email</label>
+						<input
+							id="email"
+							name="email"
+							class="field-input"
+							type="email"
+							placeholder="you@example.com"
+							autocomplete="email"
+							required
+						/>
+					</div>
+
+					<div class="field">
+						<label for="password" class="field-label">Password</label>
+						<input
+							id="password"
+							name="password"
+							class="field-input"
+							type="password"
+							placeholder="••••••••"
+							autocomplete="new-password"
+							required
+						/>
+						<p class="field-hint">Minimum 8 characters</p>
+					</div>
+
+					<div class="field">
+						<button type="submit" class="btn btn-primary">Create account</button>
+					</div>
+				</form>
+			{/if}
+
+			<footer class="form-footer">
+				<span>Already have an account?</span>
+				<a href="/login" class="link">Sign in</a>
+			</footer>
+		</div>
+	</main>
+</div>
+
+<style>
+	/* -----------------------------------------------------------------------
+	   Page layout: two-panel split
+	   ----------------------------------------------------------------------- */
+
+	.page {
+		display: grid;
+		grid-template-columns: 1fr 1fr;
+		min-height: 100svh;
+	}
+
+	/* -----------------------------------------------------------------------
+	   Left: brand panel
+	   ----------------------------------------------------------------------- */
+
+	.brand-panel {
+		display: flex;
+		align-items: flex-end;
+		padding: var(--space-8);
+		background: radial-gradient(
+			ellipse at 30% 60%,
+			var(--color-surface-container-low) 0%,
+			var(--color-surface) 70%
+		);
+		border-right: none;
+	}
+
+	.brand-content {
+		max-width: 28rem;
+	}
+
+	.brand-eyebrow {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		font-weight: var(--weight-medium);
+		letter-spacing: var(--tracking-wide);
+		text-transform: uppercase;
+		color: var(--color-primary);
+		margin-bottom: var(--space-3);
+	}
+
+	.brand-headline {
+		font-family: var(--font-display);
+		font-size: var(--text-display-lg);
+		font-weight: var(--weight-bold);
+		line-height: var(--leading-tight);
+		letter-spacing: var(--tracking-tight);
+		color: var(--color-on-surface);
+	}
+
+	/* -----------------------------------------------------------------------
+	   Right: form panel
+	   ----------------------------------------------------------------------- */
+
+	.form-panel {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		padding: var(--space-8) var(--space-6);
+		background-color: var(--color-surface-container-lowest);
+	}
+
+	.form-inner {
+		width: 100%;
+		max-width: 22rem;
+	}
+
+	/* -----------------------------------------------------------------------
+	   Success state
+	   ----------------------------------------------------------------------- */
+
+	.success-state {
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-4);
+	}
+
+	.success-message {
+		font-family: var(--font-body);
+		font-size: var(--text-body-lg);
+		color: var(--color-on-surface);
+		line-height: var(--leading-normal);
+	}
+
+	.success-hint {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		color: var(--color-on-surface-variant);
+	}
+
+	/* -----------------------------------------------------------------------
+	   Responsive: collapse to single column on mobile
+	   ----------------------------------------------------------------------- */
+
+	@media (max-width: 640px) {
+		.page {
+			grid-template-columns: 1fr;
+		}
+
+		.brand-panel {
+			display: none;
+		}
+
+		.form-panel {
+			padding: var(--space-10) var(--space-5);
+		}
+	}
+</style>

frontend/src/routes/verify-email/+page.server.ts

@@ -0,0 +1,24 @@
+import type { ServerLoad } from '@sveltejs/kit';
+import { verifyEmailApiAuthVerifyEmailGet } from '../../client/sdk.gen.ts';
+
+export const load: ServerLoad = async ({ url }) => {
+	const token = url.searchParams.get('token');
+
+	if (!token) {
+		return { success: false, error: 'Missing verification token.' };
+	}
+
+	const { response } = await verifyEmailApiAuthVerifyEmailGet({
+		query: { token }
+	});
+
+	if (response.status === 200) {
+		return { success: true };
+	}
+
+	// 400 from API means invalid, expired, or already used
+	return {
+		success: false,
+		error: 'This verification link is invalid or has already been used.'
+	};
+};

frontend/src/routes/verify-email/+page.svelte

@@ -0,0 +1,52 @@
+<script lang="ts">
+	import type { PageProps } from './$types';
+	const { data }: PageProps = $props();
+</script>
+
+<div class="page">
+	<div class="card">
+		{#if data.success}
+			<h1 class="heading">Email verified.</h1>
+			<p class="body">You can now sign in.</p>
+			<a href="/login" class="btn btn-primary">Sign in →</a>
+		{:else}
+			<h1 class="heading">Verification failed.</h1>
+			<div class="alert alert-error">{data.error}</div>
+			<a href="/register" class="btn btn-ghost">Back to registration</a>
+		{/if}
+	</div>
+</div>
+
+<style>
+	.page {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		min-height: 100svh;
+		padding: var(--space-8) var(--space-5);
+		background-color: var(--color-surface);
+	}
+
+	.card {
+		display: flex;
+		flex-direction: column;
+		align-items: flex-start;
+		gap: var(--space-4);
+		width: 100%;
+		max-width: 24rem;
+	}
+
+	.heading {
+		font-family: var(--font-display);
+		font-size: var(--text-headline-lg);
+		font-weight: var(--weight-semibold);
+		line-height: var(--leading-snug);
+		color: var(--color-on-surface);
+	}
+
+	.body {
+		font-family: var(--font-body);
+		font-size: var(--text-body-lg);
+		color: var(--color-on-surface-variant);
+	}
+</style>