diff --git a/web/package-lock.json b/web/package-lock.json
index 686e50e..a12062c 100644
--- a/web/package-lock.json
+++ b/web/package-lock.json
@@ -14,7 +14,8 @@
 				"svelte-sonner": "^1.1.0",
 				"tailwind-merge": "^3.5.0",
 				"tailwind-variants": "^3.2.2",
-				"tw-animate-css": "^1.4.0"
+				"tw-animate-css": "^1.4.0",
+				"zod": "^4.4.3"
 			},
 			"devDependencies": {
 				"@internationalized/date": "^3.12.0",
@@ -3137,9 +3138,7 @@
 			"version": "4.4.3",
 			"resolved": "https://registry.npmjs.org/zod/-/zod-4.4.3.tgz",
 			"integrity": "sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ==",
-			"dev": true,
 			"license": "MIT",
-			"optional": true,
 			"funding": {
 				"url": "https://github.com/sponsors/colinhacks"
 			}
diff --git a/web/package.json b/web/package.json
index a1c12c9..2db0ef4 100644
--- a/web/package.json
+++ b/web/package.json
@@ -39,6 +39,7 @@
 		"svelte-sonner": "^1.1.0",
 		"tailwind-merge": "^3.5.0",
 		"tailwind-variants": "^3.2.2",
-		"tw-animate-css": "^1.4.0"
+		"tw-animate-css": "^1.4.0",
+		"zod": "^4.4.3"
 	}
 }
diff --git a/web/src/lib/settings/settings-known.schema.ts b/web/src/lib/settings/settings-known.schema.ts
new file mode 100644
index 0000000..5c95489
--- /dev/null
+++ b/web/src/lib/settings/settings-known.schema.ts
@@ -0,0 +1,81 @@
+import { z } from 'zod';
+
+function isValidIPv4(value: string): boolean {
+	const parts = value.split('.');
+	if (parts.length !== 4) return false;
+	for (const part of parts) {
+		if (!/^\d{1,3}$/.test(part)) return false;
+		if (part.length > 1 && part.startsWith('0')) return false;
+		const n = Number(part);
+		if (!Number.isInteger(n) || n < 0 || n > 255) return false;
+	}
+	return true;
+}
+
+function isValidIPv6(value: string): boolean {
+	if (!/^[0-9A-Fa-f:.]+$/.test(value)) return false;
+	if ((value.match(/::/g) ?? []).length > 1) return false;
+	const hasCompression = value.includes('::');
+	const [leftRaw, rightRaw = ''] = value.split('::');
+	const left = leftRaw === '' ? [] : leftRaw.split(':');
+	const right = rightRaw === '' ? [] : rightRaw.split(':');
+	if (left.some((part) => part === '') || right.some((part) => part === '')) return false;
+	let segments = [...left, ...right];
+	let ipv4TailSegments = 0;
+	const lastSegment = segments.at(-1);
+	if (lastSegment && lastSegment.includes('.')) {
+		if (!isValidIPv4(lastSegment)) return false;
+		segments = segments.slice(0, -1);
+		ipv4TailSegments = 2;
+	}
+	for (const segment of segments) {
+		if (!/^[0-9A-Fa-f]{1,4}$/.test(segment)) return false;
+	}
+	const totalSegments = segments.length + ipv4TailSegments;
+	if (hasCompression) return totalSegments < 8;
+	return totalSegments === 8;
+}
+
+const optionalIPv4 = (label: string) =>
+	z.string().refine((v) => v.trim() === '' || isValidIPv4(v.trim()), {
+		message: `Введите корректный IPv4 адрес (${label})`
+	});
+
+const optionalIPv6 = (label: string) =>
+	z.string().refine((v) => v.trim() === '' || isValidIPv6(v.trim()), {
+		message: `Введите корректный IPv6 адрес (${label})`
+	});
+
+export const settingsKnownSchema = z.object({
+	bird_router_id: optionalIPv4('router id'),
+	bird_local_ipv4: optionalIPv4('local IPv4'),
+	bird_local_ipv6: optionalIPv6('local IPv6'),
+	bird_local_asn: z
+		.string()
+		.refine((v) => v.trim() === '' || /^[1-9]\d*$/.test(v.trim()), {
+			message: 'ASN должен быть целым числом больше 0'
+		}),
+	bird_bgp_source_ipv4: optionalIPv4('BGP source IPv4'),
+	bird_bgp_source_ipv6: optionalIPv6('BGP source IPv6'),
+	revision_retention_minutes: z.string().refine(
+		(v) => {
+			const s = v.trim();
+			if (s === '') return true;
+			const ttl = Number(s);
+			return /^\d+$/.test(s) && Number.isInteger(ttl) && ttl >= 15 && ttl <= 43200;
+		},
+		{ message: 'TTL ревизий должен быть целым числом от 15 до 43200 минут' }
+	)
+});
+
+export type SettingsKnownForm = z.infer<typeof settingsKnownSchema>;
+
+export const emptySettingsKnownForm = (): SettingsKnownForm => ({
+	bird_router_id: '',
+	bird_local_ipv4: '',
+	bird_local_ipv6: '',
+	bird_local_asn: '',
+	bird_bgp_source_ipv4: '',
+	bird_bgp_source_ipv6: '',
+	revision_retention_minutes: ''
+});
diff --git a/web/src/routes/settings/+page.svelte b/web/src/routes/settings/+page.svelte
index e42da12..9f46148 100644
--- a/web/src/routes/settings/+page.svelte
+++ b/web/src/routes/settings/+page.svelte
@@ -1,14 +1,22 @@
 <script lang="ts">
 	import { browser } from '$app/environment';
 	import { onMount } from 'svelte';
+	import { defaults, superForm } from 'sveltekit-superforms';
+	import { zod4 } from 'sveltekit-superforms/adapters';
 	import { TOKEN_STORAGE_KEY } from '$lib/api/client.js';
 	import { apiJSON, apiMutate } from '$lib/api/client.js';
 	import type { AppSettings } from '$lib/api/types.js';
-	import { Button } from '$lib/components/ui/button/index.js';
-	import { Card, CardContent, CardHeader, CardDescription } from '$lib/components/ui/card/index.js';
-	import { Input } from '$lib/components/ui/input/index.js';
-	import { Label } from '$lib/components/ui/label/index.js';
-	import { toast } from 'svelte-sonner';
+	import {
+		emptySettingsKnownForm,
+		settingsKnownSchema,
+		type SettingsKnownForm
+	} from '$lib/settings/settings-known.schema.js';
+	import { Button } from '$lib/ui/core/button/index.js';
+	import { Card, CardContent, CardHeader, CardDescription } from '$lib/ui/core/card/index.js';
+	import { Input } from '$lib/ui/core/input/index.js';
+	import { Label } from '$lib/ui/core/label/index.js';
+	import FormField from '$lib/ui/patterns/form/form-field.svelte';
+	import { notify, notifyApiError } from '$lib/ui/app/toast.js';
 	import Save from '@lucide/svelte/icons/save';
 	import Plus from '@lucide/svelte/icons/plus';
 	import SettingsIcon from '@lucide/svelte/icons/settings';
@@ -19,26 +27,10 @@
 	let apiSettings = $state<AppSettings | null>(null);
 	let loadingSettings = $state(false);
 	let savingSettings = $state(false);
-	let knownFields = $state({
-		bird_router_id: '',
-		bird_local_ipv4: '',
-		bird_local_ipv6: '',
-		bird_local_asn: '',
-		bird_bgp_source_ipv4: '',
-		bird_bgp_source_ipv6: '',
-		revision_retention_minutes: ''
-	});
 	let additionalSettings = $state<Array<{ id: number; key: string; value: string }>>([]);
 	let additionalIdCounter = $state(1);
 
-	type KnownFieldKey =
-		| 'bird_router_id'
-		| 'bird_local_ipv4'
-		| 'bird_local_ipv6'
-		| 'bird_local_asn'
-		| 'bird_bgp_source_ipv4'
-		| 'bird_bgp_source_ipv6'
-		| 'revision_retention_minutes';
+	type KnownFieldKey = keyof SettingsKnownForm;
 
 	type SettingsSection = 'token' | 'bird' | 'revisions' | 'additional';
 
@@ -52,6 +44,15 @@
 		'revision_retention_minutes'
 	];
 
+	const { form, errors, reset, validateForm } = superForm(
+		defaults(emptySettingsKnownForm(), zod4(settingsKnownSchema)),
+		{
+			validators: zod4(settingsKnownSchema),
+			SPA: true,
+			dataType: 'json'
+		}
+	);
+
 	let activeSection = $state<SettingsSection>('token');
 
 	const sectionItems: Array<{ id: SettingsSection; label: string; description: string }> = [
@@ -61,98 +62,7 @@
 		{ id: 'additional', label: 'Дополнительно', description: 'Ключ-значение' }
 	];
 
-	function isValidIPv4(value: string): boolean {
-		const parts = value.split('.');
-		if (parts.length !== 4) return false;
-		for (const part of parts) {
-			if (!/^\d{1,3}$/.test(part)) return false;
-			if (part.length > 1 && part.startsWith('0')) return false;
-			const n = Number(part);
-			if (!Number.isInteger(n) || n < 0 || n > 255) return false;
-		}
-		return true;
-	}
-
-	function isValidIPv6(value: string): boolean {
-		if (!/^[0-9A-Fa-f:.]+$/.test(value)) return false;
-		if ((value.match(/::/g) ?? []).length > 1) return false;
-
-		const hasCompression = value.includes('::');
-		const [leftRaw, rightRaw = ''] = value.split('::');
-		const left = leftRaw === '' ? [] : leftRaw.split(':');
-		const right = rightRaw === '' ? [] : rightRaw.split(':');
-
-		if (left.some((part) => part === '') || right.some((part) => part === '')) return false;
-
-		let segments = [...left, ...right];
-		let ipv4TailSegments = 0;
-		const lastSegment = segments.at(-1);
-		if (lastSegment && lastSegment.includes('.')) {
-			if (!isValidIPv4(lastSegment)) return false;
-			segments = segments.slice(0, -1);
-			ipv4TailSegments = 2;
-		}
-
-		for (const segment of segments) {
-			if (!/^[0-9A-Fa-f]{1,4}$/.test(segment)) return false;
-		}
-
-		const totalSegments = segments.length + ipv4TailSegments;
-		if (hasCompression) return totalSegments < 8;
-		return totalSegments === 8;
-	}
-
-	function isPositiveInt(value: string): boolean {
-		return /^[1-9]\d*$/.test(value);
-	}
-
-	let knownFieldErrors = $derived.by(() => {
-		const errors: Record<KnownFieldKey, string> = {
-			bird_router_id: '',
-			bird_local_ipv4: '',
-			bird_local_ipv6: '',
-			bird_local_asn: '',
-			bird_bgp_source_ipv4: '',
-			bird_bgp_source_ipv6: '',
-			revision_retention_minutes: ''
-		};
-
-		const routerId = String(knownFields.bird_router_id ?? '').trim();
-		if (routerId && !isValidIPv4(routerId)) errors.bird_router_id = 'Введите корректный IPv4 адрес';
-
-		const localV4 = String(knownFields.bird_local_ipv4 ?? '').trim();
-		if (localV4 && !isValidIPv4(localV4)) errors.bird_local_ipv4 = 'Введите корректный IPv4 адрес';
-
-		const localV6 = String(knownFields.bird_local_ipv6 ?? '').trim();
-		if (localV6 && !isValidIPv6(localV6)) errors.bird_local_ipv6 = 'Введите корректный IPv6 адрес';
-
-		const asn = String(knownFields.bird_local_asn ?? '').trim();
-		if (asn && !isPositiveInt(asn)) errors.bird_local_asn = 'ASN должен быть целым числом больше 0';
-
-		const bgpV4 = String(knownFields.bird_bgp_source_ipv4 ?? '').trim();
-		if (bgpV4 && !isValidIPv4(bgpV4)) errors.bird_bgp_source_ipv4 = 'Введите корректный IPv4 адрес';
-
-		const bgpV6 = String(knownFields.bird_bgp_source_ipv6 ?? '').trim();
-		if (bgpV6 && !isValidIPv6(bgpV6)) errors.bird_bgp_source_ipv6 = 'Введите корректный IPv6 адрес';
-
-		const revisionRetentionMinutes = String(knownFields.revision_retention_minutes ?? '').trim();
-		if (revisionRetentionMinutes) {
-			const ttl = Number(revisionRetentionMinutes);
-			if (
-				!/^\d+$/.test(revisionRetentionMinutes) ||
-				!Number.isInteger(ttl) ||
-				ttl < 15 ||
-				ttl > 43200
-			) {
-				errors.revision_retention_minutes =
-					'TTL ревизий должен быть целым числом от 15 до 43200 минут';
-			}
-		}
-
-		return errors;
-	});
-
-	let hasValidationErrors = $derived(knownFieldKeys.some((key) => Boolean(knownFieldErrors[key])));
+	let hasValidationErrors = $derived(knownFieldKeys.some((key) => Boolean($errors[key]?.length)));
 
 	function addAdditionalSetting() {
 		additionalSettings.push({ id: additionalIdCounter++, key: '', value: '' });
@@ -191,7 +101,7 @@
 			}
 		}
 
-		knownFields = parsedKnown;
+		reset({ data: parsedKnown });
 		additionalSettings = parsedAdditional;
 	}
 
@@ -200,7 +110,7 @@
 		const t = token.trim();
 		if (t) localStorage.setItem(TOKEN_STORAGE_KEY, t);
 		else localStorage.removeItem(TOKEN_STORAGE_KEY);
-		toast.success('Токен сохранён');
+		notify.success('Токен сохранён');
 	}
 
 	async function loadApiSettings() {
@@ -210,7 +120,7 @@
 			apiSettings = s;
 			resetFormFromApi(s);
 		} catch (e) {
-			toast.error(e instanceof Error ? e.message : String(e));
+			notifyApiError(e);
 		} finally {
 			loadingSettings = false;
 		}
@@ -220,8 +130,8 @@
 		if (loadingSettings || savingSettings || hasValidationErrors) return false;
 
 		const hasKnownValues = knownFieldKeys.some((key) => {
-			const value = String(knownFields[key] ?? '').trim();
-			return value !== '' && !knownFieldErrors[key];
+			const value = String($form[key] ?? '').trim();
+			return value !== '' && !$errors[key]?.length;
 		});
 		const hasAdditionalValues = additionalSettings.some((entry) => entry.key.trim() !== '');
 
@@ -229,15 +139,20 @@
 	});
 
 	async function saveApiSettings() {
+		const validation = await validateForm({ update: true });
+		if (!validation.valid) {
+			notify.error('Исправьте ошибки в полях настроек');
+			return;
+		}
 		if (!canSaveSettings) {
-			toast.error('Нечего сохранять или есть ошибки в полях');
+			notify.error('Нечего сохранять или есть ошибки в полях');
 			return;
 		}
 
 		const payload: Record<string, string | number> = {};
 		for (const key of knownFieldKeys) {
-			const value = String(knownFields[key] ?? '').trim();
-			if (!value || knownFieldErrors[key]) continue;
+			const value = String($form[key] ?? '').trim();
+			if (!value || $errors[key]?.length) continue;
 			if (key === 'bird_local_asn' || key === 'revision_retention_minutes')
 				payload[key] = Number(value);
 			else payload[key] = value;
@@ -251,10 +166,10 @@
 		savingSettings = true;
 		try {
 			await apiMutate('/v1/settings', 'PATCH', payload);
-			toast.success('Настройки сохранены');
+			notify.success('Настройки сохранены');
 			await loadApiSettings();
 		} catch (e) {
-			toast.error(e instanceof Error ? e.message : String(e));
+			notifyApiError(e);
 		} finally {
 			savingSettings = false;
 		}
@@ -335,106 +250,99 @@
 								<div class="space-y-3">
 									<h2 class="text-base font-semibold">Параметры BIRD</h2>
 
-									<div class="space-y-2">
-										<Label for="bird-router-id">Router ID (bird_router_id)</Label>
+									<FormField
+										id="bird-router-id"
+										label="Router ID (bird_router_id)"
+										error={$errors.bird_router_id?.[0]}
+									>
 										<Input
 											id="bird-router-id"
-											bind:value={knownFields.bird_router_id}
+											bind:value={$form.bird_router_id}
 											placeholder="203.0.113.1"
 										/>
-										{#if knownFieldErrors.bird_router_id}
-											<p class="text-sm text-red-600">{knownFieldErrors.bird_router_id}</p>
-										{/if}
-									</div>
+									</FormField>
 
-									<div class="space-y-2">
-										<Label for="bird-local-ipv4">Локальный IPv4 (bird_local_ipv4)</Label>
+									<FormField
+										id="bird-local-ipv4"
+										label="Локальный IPv4 (bird_local_ipv4)"
+										error={$errors.bird_local_ipv4?.[0]}
+									>
 										<Input
 											id="bird-local-ipv4"
-											bind:value={knownFields.bird_local_ipv4}
+											bind:value={$form.bird_local_ipv4}
 											placeholder="198.51.100.10"
 										/>
-										{#if knownFieldErrors.bird_local_ipv4}
-											<p class="text-sm text-red-600">{knownFieldErrors.bird_local_ipv4}</p>
-										{/if}
-									</div>
+									</FormField>
 
-									<div class="space-y-2">
-										<Label for="bird-local-ipv6">Локальный IPv6 (bird_local_ipv6)</Label>
+									<FormField
+										id="bird-local-ipv6"
+										label="Локальный IPv6 (bird_local_ipv6)"
+										error={$errors.bird_local_ipv6?.[0]}
+									>
 										<Input
 											id="bird-local-ipv6"
-											bind:value={knownFields.bird_local_ipv6}
+											bind:value={$form.bird_local_ipv6}
 											placeholder="2001:db8::10"
 										/>
-										{#if knownFieldErrors.bird_local_ipv6}
-											<p class="text-sm text-red-600">{knownFieldErrors.bird_local_ipv6}</p>
-										{/if}
-									</div>
+									</FormField>
 
-									<div class="space-y-2">
-										<Label for="bird-local-asn">Локальный ASN (bird_local_asn)</Label>
+									<FormField
+										id="bird-local-asn"
+										label="Локальный ASN (bird_local_asn)"
+										error={$errors.bird_local_asn?.[0]}
+									>
 										<Input
 											id="bird-local-asn"
 											type="number"
 											min="1"
-											bind:value={knownFields.bird_local_asn}
+											bind:value={$form.bird_local_asn}
 											placeholder="65001"
 										/>
-										{#if knownFieldErrors.bird_local_asn}
-											<p class="text-sm text-red-600">{knownFieldErrors.bird_local_asn}</p>
-										{/if}
-									</div>
+									</FormField>
 
-									<div class="space-y-2">
-										<Label for="bird-bgp-source-ipv4">BGP source IPv4 (bird_bgp_source_ipv4)</Label>
+									<FormField
+										id="bird-bgp-source-ipv4"
+										label="BGP source IPv4 (bird_bgp_source_ipv4)"
+										error={$errors.bird_bgp_source_ipv4?.[0]}
+									>
 										<Input
 											id="bird-bgp-source-ipv4"
-											bind:value={knownFields.bird_bgp_source_ipv4}
+											bind:value={$form.bird_bgp_source_ipv4}
 											placeholder="198.51.100.11"
 										/>
-										{#if knownFieldErrors.bird_bgp_source_ipv4}
-											<p class="text-sm text-red-600">{knownFieldErrors.bird_bgp_source_ipv4}</p>
-										{/if}
-									</div>
+									</FormField>
 
-									<div class="space-y-2">
-										<Label for="bird-bgp-source-ipv6">BGP source IPv6 (bird_bgp_source_ipv6)</Label>
+									<FormField
+										id="bird-bgp-source-ipv6"
+										label="BGP source IPv6 (bird_bgp_source_ipv6)"
+										error={$errors.bird_bgp_source_ipv6?.[0]}
+									>
 										<Input
 											id="bird-bgp-source-ipv6"
-											bind:value={knownFields.bird_bgp_source_ipv6}
+											bind:value={$form.bird_bgp_source_ipv6}
 											placeholder="2001:db8::11"
 										/>
-										{#if knownFieldErrors.bird_bgp_source_ipv6}
-											<p class="text-sm text-red-600">{knownFieldErrors.bird_bgp_source_ipv6}</p>
-										{/if}
-									</div>
+									</FormField>
 								</div>
 							{:else if activeSection === 'revisions'}
 								<div class="space-y-3">
 									<h2 class="text-base font-semibold">Управление ревизиями</h2>
 
-									<div class="space-y-2">
-										<Label for="revision-retention-minutes">
-											Время жизни ревизий, мин (revision_retention_minutes)
-										</Label>
+									<FormField
+										id="revision-retention-minutes"
+										label="Время жизни ревизий, мин (revision_retention_minutes)"
+										error={$errors.revision_retention_minutes?.[0]}
+										description="Старые ревизии удаляются автоматически. Последняя раскатанная ревизия не удаляется."
+									>
 										<Input
 											id="revision-retention-minutes"
 											type="number"
 											min="15"
 											max="43200"
-											bind:value={knownFields.revision_retention_minutes}
+											bind:value={$form.revision_retention_minutes}
 											placeholder="43200"
 										/>
-										{#if knownFieldErrors.revision_retention_minutes}
-											<p class="text-sm text-red-600">
-												{knownFieldErrors.revision_retention_minutes}
-											</p>
-										{/if}
-										<p class="text-sm text-muted-foreground">
-											Старые ревизии удаляются автоматически. Последняя раскатанная ревизия не
-											удаляется.
-										</p>
-									</div>
+									</FormField>
 								</div>
 							{:else if activeSection === 'additional'}
 								<div class="space-y-3">