From 28c10246e3016f8d7175ed78cc2c2b9a0f1c668c Mon Sep 17 00:00:00 2001
From: Till JS <tills95@gmail.com>
Date: Fri, 10 Apr 2026 18:01:15 +0200
Subject: [PATCH] feat(zitare): smooth transitions, custom quotes, notes, new
 categories, fuzzy search

- Smooth fade/slide animation on quote cycling in workbench
- Custom quotes: new table (DB v5), store, queries for user-created quotes
- Notes field on favorites for personal thoughts
- 3 new categories: humor, wissenschaft, kunst
- 23 new quotes incl. contemporary authors (Angelou, Mandela, Winfrey, etc.)
- 5 curated theme decks (Stoizismus, Feminismus, Philosophie, etc.)
- getAllAuthors() for author browse pages with bio + quote counts
- fuzzySearchQuotes() with bigram similarity for typo-tolerant search
- Pre-built category + author indexes for O(1) lookups

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 .../src/lib/modules/zitare/ListView.svelte    |  89 ++--
 .../web/src/lib/modules/zitare/collections.ts |   3 +-
 .../zitare/components/QuoteCard.svelte        |   6 +
 .../apps/web/src/lib/modules/zitare/index.ts  |   9 +-
 .../src/lib/modules/zitare/module.config.ts   |   1 +
 .../web/src/lib/modules/zitare/queries.ts     |  34 +-
 .../zitare/stores/custom-quotes.svelte.ts     |  47 ++
 .../modules/zitare/stores/favorites.svelte.ts |   7 +
 .../apps/web/src/lib/modules/zitare/types.ts  |  11 +
 .../zitare/packages/content/src/categories.ts |  58 ++-
 apps/zitare/packages/content/src/index.ts     |   7 +-
 apps/zitare/packages/content/src/quotes.ts    | 473 ++++++++++++++++++
 apps/zitare/packages/content/src/utils.ts     | 154 +++++-
 13 files changed, 855 insertions(+), 44 deletions(-)
 create mode 100644 apps/mana/apps/web/src/lib/modules/zitare/stores/custom-quotes.svelte.ts

diff --git a/apps/mana/apps/web/src/lib/modules/zitare/ListView.svelte b/apps/mana/apps/web/src/lib/modules/zitare/ListView.svelte
index b95815d16..a563caa30 100644
--- a/apps/mana/apps/web/src/lib/modules/zitare/ListView.svelte
+++ b/apps/mana/apps/web/src/lib/modules/zitare/ListView.svelte
@@ -22,6 +22,7 @@
 
 	let favorites = $state<LocalFavorite[]>([]);
 	let quote = $state<Quote | null>(null);
+	let transitioning = $state(false);
 
 	// Initialize once on mount (writes to store state — keep out of $effect
 	// to avoid the read/write loop where reading currentQuote retriggers
@@ -59,8 +60,14 @@
 	let currentTags = $derived(getTagsByIds(allTags, currentTagIds));
 
 	function nextQuote() {
-		quotesStore.loadRandomQuote();
-		quote = quotesStore.currentQuote;
+		if (transitioning) return;
+		transitioning = true;
+		// After fade-out completes, swap quote and fade back in
+		setTimeout(() => {
+			quotesStore.loadRandomQuote();
+			quote = quotesStore.currentQuote;
+			transitioning = false;
+		}, 200);
 	}
 
 	async function toggleFav(e: Event) {
@@ -102,42 +109,60 @@
 	}}
 >
 	{#if quote}
-		<blockquote
-			class="max-w-[280px] text-center text-base font-light italic leading-relaxed text-white/80"
-		>
-			&laquo;{quotesStore.getText(quote)}&raquo;
-		</blockquote>
-		<p class="mt-3 text-xs text-white/40">— {quote.author}</p>
+		<div class="quote-transition" class:fade-out={transitioning}>
+			<blockquote
+				class="max-w-[280px] text-center text-base font-light italic leading-relaxed text-white/80"
+			>
+				&laquo;{quotesStore.getText(quote)}&raquo;
+			</blockquote>
+			<p class="mt-3 text-xs text-white/40">— {quote.author}</p>
 
-		<!-- Tags -->
-		{#if currentTags.length > 0}
-			<div class="mt-2 flex flex-wrap justify-center gap-1">
-				{#each currentTags as tag (tag.id)}
-					<span
-						class="inline-flex items-center gap-1 rounded-full px-2 py-0.5 text-[10px] text-white/50"
-						style="background: {tag.color}20; border: 1px solid {tag.color}30"
-					>
-						<span class="h-1.5 w-1.5 rounded-full" style="background: {tag.color}"></span>
-						{tag.name}
-					</span>
-				{/each}
-			</div>
-		{/if}
+			<!-- Tags -->
+			{#if currentTags.length > 0}
+				<div class="mt-2 flex flex-wrap justify-center gap-1">
+					{#each currentTags as tag (tag.id)}
+						<span
+							class="inline-flex items-center gap-1 rounded-full px-2 py-0.5 text-[10px] text-white/50"
+							style="background: {tag.color}20; border: 1px solid {tag.color}30"
+						>
+							<span class="h-1.5 w-1.5 rounded-full" style="background: {tag.color}"></span>
+							{tag.name}
+						</span>
+					{/each}
+				</div>
+			{/if}
 
-		<button
-			onclick={toggleFav}
-			class="mt-3 min-h-[44px] rounded-full p-1.5 transition-colors hover:bg-white/5"
-		>
-			<Heart
-				size={16}
-				weight={isFav ? 'fill' : 'regular'}
-				class="transition-colors {isFav ? 'text-red-400' : 'text-white/20 hover:text-white/40'}"
-			/>
-		</button>
+			<button
+				onclick={toggleFav}
+				class="mt-3 min-h-[44px] rounded-full p-1.5 transition-colors hover:bg-white/5"
+			>
+				<Heart
+					size={16}
+					weight={isFav ? 'fill' : 'regular'}
+					class="transition-colors {isFav ? 'text-red-400' : 'text-white/20 hover:text-white/40'}"
+				/>
+			</button>
+		</div>
 	{/if}
 </div>
 
 <style>
+	.quote-transition {
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		transition:
+			opacity 0.2s ease-out,
+			transform 0.2s ease-out;
+		opacity: 1;
+		transform: translateY(0);
+	}
+
+	.quote-transition.fade-out {
+		opacity: 0;
+		transform: translateY(-6px);
+	}
+
 	:global(.mana-drop-target-hover) {
 		outline: 2px solid rgba(139, 92, 246, 0.4);
 		outline-offset: -2px;
diff --git a/apps/mana/apps/web/src/lib/modules/zitare/collections.ts b/apps/mana/apps/web/src/lib/modules/zitare/collections.ts
index 8b88e7952..d3084fa1d 100644
--- a/apps/mana/apps/web/src/lib/modules/zitare/collections.ts
+++ b/apps/mana/apps/web/src/lib/modules/zitare/collections.ts
@@ -3,12 +3,13 @@
  */
 
 import { db } from '$lib/data/database';
-import type { LocalFavorite, LocalQuoteList } from './types';
+import type { LocalFavorite, LocalQuoteList, LocalCustomQuote } from './types';
 
 // ─── Collection Accessors ──────────────────────────────────
 
 export const favoriteTable = db.table<LocalFavorite>('zitareFavorites');
 export const listTable = db.table<LocalQuoteList>('zitareLists');
+export const customQuoteTable = db.table<LocalCustomQuote>('zitareCustomQuotes');
 
 // ─── Guest Seed ────────────────────────────────────────────
 
diff --git a/apps/mana/apps/web/src/lib/modules/zitare/components/QuoteCard.svelte b/apps/mana/apps/web/src/lib/modules/zitare/components/QuoteCard.svelte
index 2cbdffff0..05298550f 100644
--- a/apps/mana/apps/web/src/lib/modules/zitare/components/QuoteCard.svelte
+++ b/apps/mana/apps/web/src/lib/modules/zitare/components/QuoteCard.svelte
@@ -47,6 +47,9 @@
 		mut: 'quote-gradient-courage',
 		hoffnung: 'quote-gradient-hope',
 		natur: 'quote-gradient-nature',
+		humor: 'quote-gradient-humor',
+		wissenschaft: 'quote-gradient-science',
+		kunst: 'quote-gradient-art',
 	};
 
 	// Category labels
@@ -61,6 +64,9 @@
 		mut: 'categories.courage',
 		hoffnung: 'categories.hope',
 		natur: 'categories.nature',
+		humor: 'categories.humor',
+		wissenschaft: 'categories.science',
+		kunst: 'categories.art',
 	};
 
 	async function toggleFavorite() {
diff --git a/apps/mana/apps/web/src/lib/modules/zitare/index.ts b/apps/mana/apps/web/src/lib/modules/zitare/index.ts
index 0451c7667..df322a099 100644
--- a/apps/mana/apps/web/src/lib/modules/zitare/index.ts
+++ b/apps/mana/apps/web/src/lib/modules/zitare/index.ts
@@ -5,17 +5,20 @@
 export { favoritesStore } from './stores/favorites.svelte';
 export { listsStore } from './stores/lists.svelte';
 export { quotesStore } from './stores/quotes.svelte';
+export { customQuotesStore } from './stores/custom-quotes.svelte';
 export { zitareSettings } from './stores/settings.svelte';
 export { spiralStore } from './stores/spiral.svelte';
 export {
 	useAllFavorites,
 	useAllLists,
+	useAllCustomQuotes,
 	toFavorite,
 	toQuoteList,
+	toCustomQuote,
 	isFavorite,
 	findFavoriteByQuoteId,
 	findListById,
 } from './queries';
-export type { Favorite, QuoteList } from './queries';
-export { favoriteTable, listTable, ZITARE_GUEST_SEED } from './collections';
-export type { LocalFavorite, LocalQuoteList } from './types';
+export type { Favorite, QuoteList, CustomQuote } from './queries';
+export { favoriteTable, listTable, customQuoteTable, ZITARE_GUEST_SEED } from './collections';
+export type { LocalFavorite, LocalQuoteList, LocalCustomQuote } from './types';
diff --git a/apps/mana/apps/web/src/lib/modules/zitare/module.config.ts b/apps/mana/apps/web/src/lib/modules/zitare/module.config.ts
index d4e03df56..4f02fa109 100644
--- a/apps/mana/apps/web/src/lib/modules/zitare/module.config.ts
+++ b/apps/mana/apps/web/src/lib/modules/zitare/module.config.ts
@@ -6,5 +6,6 @@ export const zitareModuleConfig: ModuleConfig = {
 		{ name: 'zitareFavorites', syncName: 'favorites' },
 		{ name: 'zitareLists', syncName: 'lists' },
 		{ name: 'zitareListTags' },
+		{ name: 'zitareCustomQuotes', syncName: 'custom-quotes' },
 	],
 };
diff --git a/apps/mana/apps/web/src/lib/modules/zitare/queries.ts b/apps/mana/apps/web/src/lib/modules/zitare/queries.ts
index 4624c83ce..ec29ff4db 100644
--- a/apps/mana/apps/web/src/lib/modules/zitare/queries.ts
+++ b/apps/mana/apps/web/src/lib/modules/zitare/queries.ts
@@ -4,13 +4,24 @@
 
 import { liveQuery } from 'dexie';
 import { db } from '$lib/data/database';
-import type { LocalFavorite, LocalQuoteList } from './types';
+import type { LocalFavorite, LocalQuoteList, LocalCustomQuote } from './types';
 
 // ─── Domain Types ─────────────────────────────────────────
 
 export interface Favorite {
 	id: string;
 	quoteId: string;
+	notes?: string;
+	createdAt: string;
+}
+
+export interface CustomQuote {
+	id: string;
+	text: string;
+	author: string;
+	category?: string;
+	source?: string;
+	year?: number;
 	createdAt: string;
 }
 
@@ -29,6 +40,19 @@ export function toFavorite(local: LocalFavorite): Favorite {
 	return {
 		id: local.id,
 		quoteId: local.quoteId,
+		notes: local.notes ?? undefined,
+		createdAt: local.createdAt ?? new Date().toISOString(),
+	};
+}
+
+export function toCustomQuote(local: LocalCustomQuote): CustomQuote {
+	return {
+		id: local.id,
+		text: local.text,
+		author: local.author,
+		category: local.category ?? undefined,
+		source: local.source ?? undefined,
+		year: local.year ?? undefined,
 		createdAt: local.createdAt ?? new Date().toISOString(),
 	};
 }
@@ -62,6 +86,14 @@ export function useAllLists() {
 	});
 }
 
+/** All custom quotes. Auto-updates on any change. */
+export function useAllCustomQuotes() {
+	return liveQuery(async () => {
+		const locals = await db.table<LocalCustomQuote>('zitareCustomQuotes').toArray();
+		return locals.filter((q) => !q.deletedAt).map(toCustomQuote);
+	});
+}
+
 // ─── Pure Helper Functions (for $derived) ─────────────────
 
 /** Check if a quote is in the favorites list. */
diff --git a/apps/mana/apps/web/src/lib/modules/zitare/stores/custom-quotes.svelte.ts b/apps/mana/apps/web/src/lib/modules/zitare/stores/custom-quotes.svelte.ts
new file mode 100644
index 000000000..59e31bbbb
--- /dev/null
+++ b/apps/mana/apps/web/src/lib/modules/zitare/stores/custom-quotes.svelte.ts
@@ -0,0 +1,47 @@
+/**
+ * Custom Quotes Store — Mutation-only
+ * Handles CRUD for user-created quotes.
+ */
+
+import { db } from '$lib/data/database';
+import type { LocalCustomQuote } from '../types';
+
+export interface CustomQuoteInput {
+	text: string;
+	author: string;
+	category?: string;
+	source?: string;
+	year?: number;
+}
+
+export const customQuotesStore = {
+	async create(input: CustomQuoteInput): Promise<string> {
+		const now = new Date().toISOString();
+		const id = `custom-${crypto.randomUUID()}`;
+		await db.table<LocalCustomQuote>('zitareCustomQuotes').add({
+			id,
+			text: input.text,
+			author: input.author,
+			category: input.category ?? null,
+			source: input.source ?? null,
+			year: input.year ?? null,
+			createdAt: now,
+			updatedAt: now,
+		});
+		return id;
+	},
+
+	async update(id: string, updates: Partial<CustomQuoteInput>): Promise<void> {
+		await db.table('zitareCustomQuotes').update(id, {
+			...updates,
+			updatedAt: new Date().toISOString(),
+		});
+	},
+
+	async remove(id: string): Promise<void> {
+		await db.table('zitareCustomQuotes').update(id, {
+			deletedAt: new Date().toISOString(),
+			updatedAt: new Date().toISOString(),
+		});
+	},
+};
diff --git a/apps/mana/apps/web/src/lib/modules/zitare/stores/favorites.svelte.ts b/apps/mana/apps/web/src/lib/modules/zitare/stores/favorites.svelte.ts
index 5e2981ebb..862cb75ac 100644
--- a/apps/mana/apps/web/src/lib/modules/zitare/stores/favorites.svelte.ts
+++ b/apps/mana/apps/web/src/lib/modules/zitare/stores/favorites.svelte.ts
@@ -37,4 +37,11 @@ export const favoritesStore = {
 			await this.add(quoteId);
 		}
 	},
+
+	async setNotes(favoriteId: string, notes: string) {
+		await db.table('zitareFavorites').update(favoriteId, {
+			notes: notes || null,
+			updatedAt: new Date().toISOString(),
+		});
+	},
 };
diff --git a/apps/mana/apps/web/src/lib/modules/zitare/types.ts b/apps/mana/apps/web/src/lib/modules/zitare/types.ts
index 8db74571f..ccbc500dc 100644
--- a/apps/mana/apps/web/src/lib/modules/zitare/types.ts
+++ b/apps/mana/apps/web/src/lib/modules/zitare/types.ts
@@ -7,6 +7,8 @@ import type { BaseRecord } from '@mana/local-store';
 export interface LocalFavorite extends BaseRecord {
 	quoteId: string;
 	tagIds?: string[] | null;
+	/** Personal notes / thoughts about this quote. */
+	notes?: string | null;
 }
 
 export interface LocalQuoteList extends BaseRecord {
@@ -14,3 +16,12 @@ export interface LocalQuoteList extends BaseRecord {
 	description?: string | null;
 	quoteIds: string[];
 }
+
+/** A user-created custom quote stored locally. */
+export interface LocalCustomQuote extends BaseRecord {
+	text: string;
+	author: string;
+	category?: string | null;
+	source?: string | null;
+	year?: number | null;
+}
diff --git a/apps/zitare/packages/content/src/categories.ts b/apps/zitare/packages/content/src/categories.ts
index eb7ce4324..126357856 100644
--- a/apps/zitare/packages/content/src/categories.ts
+++ b/apps/zitare/packages/content/src/categories.ts
@@ -12,6 +12,9 @@ export const CATEGORIES = [
 	'mut',
 	'hoffnung',
 	'natur',
+	'humor',
+	'wissenschaft',
+	'kunst',
 ] as const;
 
 export type Category = (typeof CATEGORIES)[number];
@@ -25,13 +28,66 @@ export const CATEGORY_LABELS: Record<Category, string> = {
 	liebe: 'Liebe',
 	leben: 'Leben',
 	erfolg: 'Erfolg',
-	glueck: 'Glueck',
+	glueck: 'Glück',
 	freundschaft: 'Freundschaft',
 	mut: 'Mut',
 	hoffnung: 'Hoffnung',
 	natur: 'Natur',
+	humor: 'Humor',
+	wissenschaft: 'Wissenschaft',
+	kunst: 'Kunst',
 };
 
+/** Curated theme decks — cross-category collections around a topic. */
+export const THEME_DECKS = [
+	{
+		id: 'stoizismus',
+		label: 'Stoizismus',
+		description: 'Gelassenheit und innere Stärke',
+		authors: ['Marcus Aurelius', 'Seneca', 'Epiktet'],
+	},
+	{
+		id: 'feminismus',
+		label: 'Feminismus',
+		description: 'Gleichberechtigung und Selbstbestimmung',
+		authors: ['Simone de Beauvoir', 'Virginia Woolf', 'Maya Angelou', 'Marie Curie', 'Frida Kahlo'],
+	},
+	{
+		id: 'unternehmertum',
+		label: 'Unternehmertum',
+		description: 'Innovation und Durchhaltevermögen',
+		authors: ['Steve Jobs', 'Henry Ford', 'Thomas Edison', 'Walt Disney'],
+	},
+	{
+		id: 'philosophie',
+		label: 'Philosophie',
+		description: 'Die großen Fragen des Lebens',
+		authors: [
+			'Sokrates',
+			'Platon',
+			'Aristoteles',
+			'Immanuel Kant',
+			'Friedrich Nietzsche',
+			'Konfuzius',
+			'Laozi',
+		],
+	},
+	{
+		id: 'literatur',
+		label: 'Literatur',
+		description: 'Worte der großen Dichter und Schriftsteller',
+		authors: [
+			'Johann Wolfgang von Goethe',
+			'Oscar Wilde',
+			'Mark Twain',
+			'William Shakespeare',
+			'Rainer Maria Rilke',
+		],
+	},
+] as const;
+
+export type ThemeDeckId = (typeof THEME_DECKS)[number]['id'];
+
 /**
  * Get label for a category
  */
diff --git a/apps/zitare/packages/content/src/index.ts b/apps/zitare/packages/content/src/index.ts
index 72c972754..5530fadee 100644
--- a/apps/zitare/packages/content/src/index.ts
+++ b/apps/zitare/packages/content/src/index.ts
@@ -11,7 +11,8 @@ export type { Category } from './categories';
 
 // Data
 export { QUOTES, QUOTE_COUNT } from './quotes';
-export { CATEGORIES, CATEGORY_LABELS } from './categories';
+export { CATEGORIES, CATEGORY_LABELS, THEME_DECKS } from './categories';
+export type { ThemeDeckId } from './categories';
 
 // Utilities
 export {
@@ -31,9 +32,13 @@ export {
 	getQuotesByTag,
 	getAllTags,
 	getQuotesByAuthor,
+	getAllAuthors,
+	getQuotesByThemeDeck,
+	fuzzySearchQuotes,
 	getVerifiedQuotes,
 	getQuotesByYearRange,
 	getQuotesByOriginalLanguage,
 } from './utils';
+export type { AuthorInfo } from './utils';
 
 export { getCategoryLabel, isValidCategory } from './categories';
diff --git a/apps/zitare/packages/content/src/quotes.ts b/apps/zitare/packages/content/src/quotes.ts
index 0ecc499e2..e983c4c30 100644
--- a/apps/zitare/packages/content/src/quotes.ts
+++ b/apps/zitare/packages/content/src/quotes.ts
@@ -1417,6 +1417,479 @@ export const QUOTES: Quote[] = [
 			en: 'Greek philosopher from Ephesus (c. 535-475 BC).',
 		},
 	},
+
+	// ============================================
+	// HUMOR
+	// ============================================
+	{
+		id: 'humor-1',
+		text: {
+			original: 'Be yourself; everyone else is already taken.',
+			de: 'Sei du selbst; alle anderen sind bereits vergeben.',
+			en: 'Be yourself; everyone else is already taken.',
+			it: 'Sii te stesso; tutti gli altri sono già occupati.',
+			fr: 'Sois toi-même ; tous les autres sont déjà pris.',
+			es: 'Sé tú mismo; todos los demás ya están ocupados.',
+		},
+		author: 'Oscar Wilde',
+		category: 'humor',
+		originalLanguage: 'en',
+		tags: ['humor', 'identität', 'selbst'],
+		verified: true,
+		authorBio: {
+			de: 'Irischer Schriftsteller und Dramatiker (1854-1900).',
+			en: 'Irish writer and playwright (1854-1900).',
+		},
+	},
+	{
+		id: 'humor-2',
+		text: {
+			original: "I have not failed. I've just found 10,000 ways that won't work.",
+			de: 'Ich habe nicht versagt. Ich habe nur 10.000 Wege gefunden, die nicht funktionieren.',
+			en: "I have not failed. I've just found 10,000 ways that won't work.",
+			it: 'Non ho fallito. Ho solo trovato 10.000 modi che non funzionano.',
+			fr: "Je n'ai pas échoué. J'ai juste trouvé 10 000 façons qui ne fonctionnent pas.",
+			es: 'No he fracasado. Solo he encontrado 10.000 formas que no funcionan.',
+		},
+		author: 'Thomas Edison',
+		category: 'humor',
+		originalLanguage: 'en',
+		tags: ['humor', 'ausdauer', 'erfindung'],
+		verified: true,
+		authorBio: {
+			de: 'US-amerikanischer Erfinder und Unternehmer (1847-1931).',
+			en: 'American inventor and businessman (1847-1931).',
+		},
+	},
+	{
+		id: 'humor-3',
+		text: {
+			original: 'I can resist everything except temptation.',
+			de: 'Ich kann allem widerstehen, nur nicht der Versuchung.',
+			en: 'I can resist everything except temptation.',
+			it: 'Posso resistere a tutto tranne che alla tentazione.',
+			fr: 'Je peux résister à tout, sauf à la tentation.',
+			es: 'Puedo resistir todo, excepto la tentación.',
+		},
+		author: 'Oscar Wilde',
+		category: 'humor',
+		originalLanguage: 'en',
+		source: "Lady Windermere's Fan",
+		year: 1892,
+		tags: ['humor', 'versuchung', 'ironie'],
+		verified: true,
+	},
+	{
+		id: 'humor-4',
+		text: {
+			original:
+				'Zwei Dinge sind unendlich, das Universum und die menschliche Dummheit, aber bei dem Universum bin ich mir noch nicht ganz sicher.',
+			de: 'Zwei Dinge sind unendlich, das Universum und die menschliche Dummheit, aber bei dem Universum bin ich mir noch nicht ganz sicher.',
+			en: "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.",
+			it: "Due cose sono infinite: l'universo e la stupidità umana; e non sono sicuro dell'universo.",
+			fr: "Deux choses sont infinies : l'univers et la bêtise humaine ; et je ne suis pas sûr de l'univers.",
+			es: 'Dos cosas son infinitas: el universo y la estupidez humana; y no estoy seguro del universo.',
+		},
+		author: 'Albert Einstein',
+		category: 'humor',
+		originalLanguage: 'de',
+		tags: ['humor', 'intelligenz', 'universum'],
+		verified: false,
+		authorBio: {
+			de: 'Deutsch-schweizerisch-amerikanischer Physiker (1879-1955), Nobelpreisträger.',
+			en: 'German-Swiss-American physicist (1879-1955), Nobel laureate.',
+		},
+	},
+	{
+		id: 'humor-5',
+		text: {
+			original: 'In der Kürze liegt die Würze.',
+			de: 'In der Kürze liegt die Würze.',
+			en: 'Brevity is the soul of wit.',
+			it: "La brevità è l'anima dell'arguzia.",
+			fr: "La brièveté est l'âme de l'esprit.",
+			es: 'La brevedad es el alma del ingenio.',
+		},
+		author: 'William Shakespeare',
+		category: 'humor',
+		originalLanguage: 'en',
+		source: 'Hamlet',
+		year: 1601,
+		tags: ['humor', 'kürze', 'sprache'],
+		verified: true,
+		authorBio: {
+			de: 'Englischer Dramatiker und Dichter (1564-1616).',
+			en: 'English playwright and poet (1564-1616).',
+		},
+	},
+
+	// ============================================
+	// WISSENSCHAFT
+	// ============================================
+	{
+		id: 'wiss-1',
+		text: {
+			original: 'Imagination is more important than knowledge.',
+			de: 'Vorstellungskraft ist wichtiger als Wissen.',
+			en: 'Imagination is more important than knowledge.',
+			it: "L'immaginazione è più importante della conoscenza.",
+			fr: "L'imagination est plus importante que le savoir.",
+			es: 'La imaginación es más importante que el conocimiento.',
+		},
+		author: 'Albert Einstein',
+		category: 'wissenschaft',
+		originalLanguage: 'en',
+		source: 'Interview, Saturday Evening Post',
+		year: 1929,
+		tags: ['wissenschaft', 'phantasie', 'wissen'],
+		verified: true,
+		authorBio: {
+			de: 'Deutsch-schweizerisch-amerikanischer Physiker (1879-1955), Nobelpreisträger.',
+			en: 'German-Swiss-American physicist (1879-1955), Nobel laureate.',
+		},
+	},
+	{
+		id: 'wiss-2',
+		text: {
+			original: 'Nothing in life is to be feared, it is only to be understood.',
+			de: 'Nichts im Leben muss gefürchtet werden, es muss nur verstanden werden.',
+			en: 'Nothing in life is to be feared, it is only to be understood.',
+			it: "Nulla nella vita va temuto, dev'essere soltanto compreso.",
+			fr: "Dans la vie, rien n'est à craindre, tout est à comprendre.",
+			es: 'Nada en la vida debe ser temido, solamente comprendido.',
+		},
+		author: 'Marie Curie',
+		category: 'wissenschaft',
+		originalLanguage: 'fr',
+		tags: ['wissenschaft', 'mut', 'verständnis'],
+		verified: true,
+		authorBio: {
+			de: 'Polnisch-französische Physikerin und Chemikerin (1867-1934), zweifache Nobelpreisträgerin.',
+			en: 'Polish-French physicist and chemist (1867-1934), two-time Nobel laureate.',
+		},
+	},
+	{
+		id: 'wiss-3',
+		text: {
+			original:
+				'The important thing is not to stop questioning. Curiosity has its own reason for existing.',
+			de: 'Das Wichtigste ist, nicht aufzuhören zu fragen. Neugier hat ihre eigene Daseinsberechtigung.',
+			en: 'The important thing is not to stop questioning. Curiosity has its own reason for existing.',
+			it: 'La cosa importante è non smettere di fare domande. La curiosità ha la sua ragione di esistere.',
+			fr: "L'important est de ne pas cesser de questionner. La curiosité a sa propre raison d'exister.",
+			es: 'Lo importante es no dejar de hacerse preguntas. La curiosidad tiene su propia razón de existir.',
+		},
+		author: 'Albert Einstein',
+		category: 'wissenschaft',
+		originalLanguage: 'en',
+		source: 'LIFE Magazine',
+		year: 1955,
+		tags: ['wissenschaft', 'neugier', 'fragen'],
+		verified: true,
+	},
+	{
+		id: 'wiss-4',
+		text: {
+			original: 'Somewhere, something incredible is waiting to be known.',
+			de: 'Irgendwo wartet etwas Unglaubliches darauf, entdeckt zu werden.',
+			en: 'Somewhere, something incredible is waiting to be known.',
+			it: 'Da qualche parte, qualcosa di incredibile attende di essere scoperto.',
+			fr: "Quelque part, quelque chose d'incroyable attend d'être découvert.",
+			es: 'En algún lugar, algo increíble está esperando ser descubierto.',
+		},
+		author: 'Carl Sagan',
+		category: 'wissenschaft',
+		originalLanguage: 'en',
+		tags: ['wissenschaft', 'entdeckung', 'kosmos'],
+		verified: true,
+		authorBio: {
+			de: 'US-amerikanischer Astrophysiker und Wissenschaftskommunikator (1934-1996).',
+			en: 'American astrophysicist and science communicator (1934-1996).',
+		},
+	},
+	{
+		id: 'wiss-5',
+		text: {
+			original: 'One, remember to look up at the stars and not down at your feet.',
+			de: 'Erstens: Denkt daran, zu den Sternen aufzublicken und nicht auf eure Füße.',
+			en: 'One, remember to look up at the stars and not down at your feet.',
+			it: 'Primo: ricordatevi di guardare le stelle e non i vostri piedi.',
+			fr: "Premièrement, n'oubliez pas de regarder les étoiles et non vos pieds.",
+			es: 'Primero: recuerden mirar las estrellas y no sus pies.',
+		},
+		author: 'Stephen Hawking',
+		category: 'wissenschaft',
+		originalLanguage: 'en',
+		tags: ['wissenschaft', 'sterne', 'perspektive'],
+		verified: true,
+		authorBio: {
+			de: 'Britischer Physiker und Kosmologe (1942-2018).',
+			en: 'British physicist and cosmologist (1942-2018).',
+		},
+	},
+
+	// ============================================
+	// KUNST
+	// ============================================
+	{
+		id: 'kunst-1',
+		text: {
+			original: 'Every child is an artist. The problem is how to remain an artist once we grow up.',
+			de: 'Jedes Kind ist ein Künstler. Das Problem ist, ein Künstler zu bleiben, wenn man erwachsen wird.',
+			en: 'Every child is an artist. The problem is how to remain an artist once we grow up.',
+			it: 'Ogni bambino è un artista. Il problema è come rimanere un artista quando si cresce.',
+			fr: 'Chaque enfant est un artiste. Le problème est de rester un artiste en grandissant.',
+			es: 'Todo niño es un artista. El problema es cómo seguir siendo artista cuando se crece.',
+		},
+		author: 'Pablo Picasso',
+		category: 'kunst',
+		originalLanguage: 'es',
+		tags: ['kunst', 'kreativität', 'kindheit'],
+		verified: true,
+		authorBio: {
+			de: 'Spanischer Maler und Bildhauer (1881-1973), Mitbegründer des Kubismus.',
+			en: 'Spanish painter and sculptor (1881-1973), co-founder of Cubism.',
+		},
+	},
+	{
+		id: 'kunst-2',
+		text: {
+			original: 'Art is not what you see, but what you make others see.',
+			de: 'Kunst ist nicht das, was du siehst, sondern das, was du andere sehen lässt.',
+			en: 'Art is not what you see, but what you make others see.',
+			it: "L'arte non è ciò che vedi, ma ciò che fai vedere agli altri.",
+			fr: "L'art, ce n'est pas ce que vous voyez, mais ce que vous faites voir aux autres.",
+			es: 'El arte no es lo que ves, sino lo que haces ver a los demás.',
+		},
+		author: 'Edgar Degas',
+		category: 'kunst',
+		originalLanguage: 'fr',
+		tags: ['kunst', 'wahrnehmung', 'perspektive'],
+		verified: true,
+		authorBio: {
+			de: 'Französischer Maler und Bildhauer (1834-1917), Impressionist.',
+			en: 'French painter and sculptor (1834-1917), Impressionist.',
+		},
+	},
+	{
+		id: 'kunst-3',
+		text: {
+			original: 'Die Kunst ist eine Vermittlerin des Unaussprechlichen.',
+			de: 'Die Kunst ist eine Vermittlerin des Unaussprechlichen.',
+			en: 'Art is a mediator of the inexpressible.',
+			it: "L'arte è una mediatrice dell'inesprimibile.",
+			fr: "L'art est un médiateur de l'inexprimable.",
+			es: 'El arte es un mediador de lo inexpresable.',
+		},
+		author: 'Johann Wolfgang von Goethe',
+		category: 'kunst',
+		originalLanguage: 'de',
+		source: 'Maximen und Reflexionen',
+		tags: ['kunst', 'sprache', 'ausdruck'],
+		verified: true,
+		authorBio: {
+			de: 'Deutscher Dichter und Naturforscher (1749-1832).',
+			en: 'German poet and naturalist (1749-1832).',
+		},
+	},
+	{
+		id: 'kunst-4',
+		text: {
+			original: 'I dream my painting and I paint my dream.',
+			de: 'Ich träume mein Gemälde und male meinen Traum.',
+			en: 'I dream my painting and I paint my dream.',
+			it: 'Sogno il mio dipinto e dipingo il mio sogno.',
+			fr: 'Je rêve ma peinture et je peins mon rêve.',
+			es: 'Sueño mi pintura y pinto mi sueño.',
+		},
+		author: 'Vincent van Gogh',
+		category: 'kunst',
+		originalLanguage: 'nl',
+		tags: ['kunst', 'traum', 'malerei'],
+		verified: true,
+		authorBio: {
+			de: 'Niederländischer Maler (1853-1890), Wegbereiter der modernen Kunst.',
+			en: 'Dutch painter (1853-1890), pioneer of modern art.',
+		},
+	},
+	{
+		id: 'kunst-5',
+		text: {
+			original: 'Creativity takes courage.',
+			de: 'Kreativität erfordert Mut.',
+			en: 'Creativity takes courage.',
+			it: 'La creatività richiede coraggio.',
+			fr: 'La créativité demande du courage.',
+			es: 'La creatividad requiere coraje.',
+		},
+		author: 'Henri Matisse',
+		category: 'kunst',
+		originalLanguage: 'fr',
+		tags: ['kunst', 'mut', 'kreativität'],
+		verified: true,
+		authorBio: {
+			de: 'Französischer Maler (1869-1954), Wegbereiter des Fauvismus.',
+			en: 'French painter (1869-1954), pioneer of Fauvism.',
+		},
+	},
+
+	// ============================================
+	// ZEITGENÖSSISCH (across categories)
+	// ============================================
+	{
+		id: 'zeit-1',
+		text: {
+			original: "Your time is limited, so don't waste it living someone else's life.",
+			de: 'Deine Zeit ist begrenzt, also verschwende sie nicht damit, das Leben eines anderen zu leben.',
+			en: "Your time is limited, so don't waste it living someone else's life.",
+			it: 'Il tuo tempo è limitato, quindi non sprecarlo vivendo la vita di qualcun altro.',
+			fr: "Votre temps est limité, ne le gaspillez pas en vivant la vie de quelqu'un d'autre.",
+			es: 'Tu tiempo es limitado, no lo desperdicies viviendo la vida de otra persona.',
+		},
+		author: 'Steve Jobs',
+		category: 'leben',
+		originalLanguage: 'en',
+		source: 'Stanford Commencement Speech',
+		year: 2005,
+		tags: ['leben', 'zeit', 'authentizität'],
+		verified: true,
+	},
+	{
+		id: 'zeit-2',
+		text: {
+			original:
+				"I've learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.",
+			de: 'Ich habe gelernt, dass Menschen vergessen, was du gesagt hast, vergessen, was du getan hast, aber nie vergessen, wie du sie fühlen ließest.',
+			en: "I've learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.",
+			it: 'Ho imparato che le persone dimenticheranno ciò che hai detto, ciò che hai fatto, ma non dimenticheranno mai come le hai fatte sentire.',
+			fr: "J'ai appris que les gens oublieront ce que vous avez dit, ce que vous avez fait, mais jamais ce que vous leur avez fait ressentir.",
+			es: 'He aprendido que la gente olvidará lo que dijiste, lo que hiciste, pero nunca olvidará cómo les hiciste sentir.',
+		},
+		author: 'Maya Angelou',
+		category: 'weisheit',
+		originalLanguage: 'en',
+		tags: ['weisheit', 'empathie', 'gefühl'],
+		verified: true,
+		authorBio: {
+			de: 'US-amerikanische Schriftstellerin und Bürgerrechtsaktivistin (1928-2014).',
+			en: 'American writer and civil rights activist (1928-2014).',
+		},
+	},
+	{
+		id: 'zeit-3',
+		text: {
+			original: 'Education is the most powerful weapon which you can use to change the world.',
+			de: 'Bildung ist die mächtigste Waffe, die du nutzen kannst, um die Welt zu verändern.',
+			en: 'Education is the most powerful weapon which you can use to change the world.',
+			it: "L'istruzione è l'arma più potente che puoi usare per cambiare il mondo.",
+			fr: "L'éducation est l'arme la plus puissante qu'on puisse utiliser pour changer le monde.",
+			es: 'La educación es el arma más poderosa que puedes usar para cambiar el mundo.',
+		},
+		author: 'Nelson Mandela',
+		category: 'weisheit',
+		originalLanguage: 'en',
+		year: 2003,
+		tags: ['bildung', 'veränderung', 'welt'],
+		verified: true,
+		authorBio: {
+			de: 'Südafrikanischer Freiheitskämpfer und Staatspräsident (1918-2013), Nobelpreisträger.',
+			en: 'South African freedom fighter and president (1918-2013), Nobel laureate.',
+		},
+	},
+	{
+		id: 'zeit-4',
+		text: {
+			original: 'Stay hungry, stay foolish.',
+			de: 'Bleibt hungrig, bleibt verrückt.',
+			en: 'Stay hungry, stay foolish.',
+			it: 'Siate affamati, siate folli.',
+			fr: 'Restez affamés, restez fous.',
+			es: 'Sigan hambrientos, sigan alocados.',
+		},
+		author: 'Steve Jobs',
+		category: 'motivation',
+		originalLanguage: 'en',
+		source: 'Stanford Commencement Speech',
+		year: 2005,
+		tags: ['motivation', 'neugier', 'leidenschaft'],
+		verified: true,
+	},
+	{
+		id: 'zeit-5',
+		text: {
+			original: 'No one can make you feel inferior without your consent.',
+			de: 'Niemand kann dir ohne dein Einverständnis das Gefühl geben, minderwertig zu sein.',
+			en: 'No one can make you feel inferior without your consent.',
+			it: 'Nessuno può farti sentire inferiore senza il tuo consenso.',
+			fr: 'Personne ne peut vous faire sentir inférieur sans votre consentement.',
+			es: 'Nadie puede hacerte sentir inferior sin tu consentimiento.',
+		},
+		author: 'Eleanor Roosevelt',
+		category: 'mut',
+		originalLanguage: 'en',
+		tags: ['mut', 'selbstwert', 'stärke'],
+		verified: true,
+		authorBio: {
+			de: 'US-amerikanische Menschenrechtsaktivistin und First Lady (1884-1962).',
+			en: 'American human rights activist and First Lady (1884-1962).',
+		},
+	},
+	{
+		id: 'zeit-6',
+		text: {
+			original: 'It is during our darkest moments that we must focus to see the light.',
+			de: 'In unseren dunkelsten Momenten müssen wir uns darauf konzentrieren, das Licht zu sehen.',
+			en: 'It is during our darkest moments that we must focus to see the light.',
+			it: 'È nei nostri momenti più bui che dobbiamo concentrarci per vedere la luce.',
+			fr: "C'est dans nos moments les plus sombres que nous devons nous concentrer pour voir la lumière.",
+			es: 'Es en nuestros momentos más oscuros que debemos concentrarnos para ver la luz.',
+		},
+		author: 'Aristoteles',
+		category: 'hoffnung',
+		originalLanguage: 'el',
+		tags: ['hoffnung', 'stärke', 'licht'],
+		verified: false,
+	},
+	{
+		id: 'zeit-7',
+		text: {
+			original: 'The only impossible journey is the one you never begin.',
+			de: 'Die einzige unmögliche Reise ist die, die du nie beginnst.',
+			en: 'The only impossible journey is the one you never begin.',
+			it: "L'unico viaggio impossibile è quello che non inizi mai.",
+			fr: 'Le seul voyage impossible est celui que vous ne commencez jamais.',
+			es: 'El único viaje imposible es el que nunca comienzas.',
+		},
+		author: 'Tony Robbins',
+		category: 'motivation',
+		originalLanguage: 'en',
+		tags: ['motivation', 'anfang', 'reise'],
+		verified: true,
+		authorBio: {
+			de: 'US-amerikanischer Motivationsredner und Autor (*1960).',
+			en: 'American motivational speaker and author (b. 1960).',
+		},
+	},
+	{
+		id: 'zeit-8',
+		text: {
+			original: 'Think like a queen. A queen is not afraid to fail.',
+			de: 'Denke wie eine Königin. Eine Königin hat keine Angst zu scheitern.',
+			en: 'Think like a queen. A queen is not afraid to fail.',
+			it: 'Pensa come una regina. Una regina non ha paura di fallire.',
+			fr: "Pense comme une reine. Une reine n'a pas peur d'échouer.",
+			es: 'Piensa como una reina. Una reina no tiene miedo de fracasar.',
+		},
+		author: 'Oprah Winfrey',
+		category: 'mut',
+		originalLanguage: 'en',
+		tags: ['mut', 'selbstvertrauen', 'frauen'],
+		verified: true,
+		authorBio: {
+			de: 'US-amerikanische Talkshow-Moderatorin und Unternehmerin (*1954).',
+			en: 'American talk show host and entrepreneur (b. 1954).',
+		},
+	},
 ];
 
 /**
diff --git a/apps/zitare/packages/content/src/utils.ts b/apps/zitare/packages/content/src/utils.ts
index a9923bac0..c1d56fb02 100644
--- a/apps/zitare/packages/content/src/utils.ts
+++ b/apps/zitare/packages/content/src/utils.ts
@@ -1,5 +1,11 @@
 import { QUOTES } from './quotes';
-import { CATEGORIES, CATEGORY_LABELS, type Category } from './categories';
+import {
+	CATEGORIES,
+	CATEGORY_LABELS,
+	THEME_DECKS,
+	type Category,
+	type ThemeDeckId,
+} from './categories';
 import type { Quote, SupportedLanguage } from './types';
 
 /**
@@ -20,11 +26,24 @@ export function getDailyQuote(date: Date = new Date()): Quote {
 	return QUOTES[index];
 }
 
+// ─── Pre-built category index (built once, O(1) per lookup) ──
+
+let _categoryIndex: Map<Category, Quote[]> | null = null;
+
+function getCategoryIndex(): Map<Category, Quote[]> {
+	if (!_categoryIndex) {
+		_categoryIndex = new Map();
+		for (const cat of CATEGORIES) _categoryIndex.set(cat, []);
+		for (const q of QUOTES) _categoryIndex.get(q.category)?.push(q);
+	}
+	return _categoryIndex;
+}
+
 /**
- * Get quotes by category
+ * Get quotes by category (uses pre-built index for O(1) lookups).
  */
 export function getQuotesByCategory(category: Category): Quote[] {
-	return QUOTES.filter((q) => q.category === category);
+	return getCategoryIndex().get(category) ?? [];
 }
 
 /**
@@ -154,12 +173,72 @@ export function getAllTags(): string[] {
 	return Array.from(tags).sort();
 }
 
+// ─── Pre-built author index ──────────────────────────────────
+
+let _authorIndex: Map<string, Quote[]> | null = null;
+
+function getAuthorIndex(): Map<string, Quote[]> {
+	if (!_authorIndex) {
+		_authorIndex = new Map();
+		for (const q of QUOTES) {
+			const key = q.author.toLowerCase();
+			let arr = _authorIndex.get(key);
+			if (!arr) {
+				arr = [];
+				_authorIndex.set(key, arr);
+			}
+			arr.push(q);
+		}
+	}
+	return _authorIndex;
+}
+
 /**
- * Get quotes by author
+ * Get quotes by author (substring match on name).
  */
 export function getQuotesByAuthor(author: string): Quote[] {
 	const lowerAuthor = author.toLowerCase();
-	return QUOTES.filter((q) => q.author.toLowerCase().includes(lowerAuthor));
+	// Exact match via index first
+	const exact = getAuthorIndex().get(lowerAuthor);
+	if (exact) return exact;
+	// Fall back to substring match across all authors
+	const results: Quote[] = [];
+	for (const [key, quotes] of getAuthorIndex()) {
+		if (key.includes(lowerAuthor)) results.push(...quotes);
+	}
+	return results;
+}
+
+/** Author summary for browse pages. */
+export interface AuthorInfo {
+	name: string;
+	quoteCount: number;
+	categories: string[];
+	bio?: { de?: string; en?: string; it?: string; fr?: string; es?: string };
+}
+
+/**
+ * Get all unique authors with their quote counts, categories, and bios.
+ * Sorted by quote count descending, then name ascending.
+ */
+export function getAllAuthors(): AuthorInfo[] {
+	const map = new Map<string, AuthorInfo>();
+	for (const q of QUOTES) {
+		let info = map.get(q.author);
+		if (!info) {
+			info = { name: q.author, quoteCount: 0, categories: [], bio: q.authorBio };
+			map.set(q.author, info);
+		}
+		info.quoteCount++;
+		if (!info.categories.includes(q.category)) {
+			info.categories.push(q.category);
+		}
+		// Prefer the bio entry that has content
+		if (!info.bio && q.authorBio) info.bio = q.authorBio;
+	}
+	return Array.from(map.values()).sort(
+		(a, b) => b.quoteCount - a.quoteCount || a.name.localeCompare(b.name)
+	);
 }
 
 /**
@@ -183,6 +262,71 @@ export function getQuotesByOriginalLanguage(language: string): Quote[] {
 	return QUOTES.filter((q) => q.originalLanguage === language);
 }
 
+/**
+ * Get quotes for a curated theme deck.
+ */
+export function getQuotesByThemeDeck(deckId: ThemeDeckId): Quote[] {
+	const deck = THEME_DECKS.find((d) => d.id === deckId);
+	if (!deck) return [];
+	const authorSet = new Set(deck.authors.map((a) => a.toLowerCase()));
+	return QUOTES.filter((q) => authorSet.has(q.author.toLowerCase()));
+}
+
+/**
+ * Fuzzy search — matches even with typos using bigram similarity.
+ * Falls back to simple substring match for short queries.
+ */
+export function fuzzySearchQuotes(
+	query: string,
+	language: SupportedLanguage = 'de',
+	threshold = 0.3
+): Quote[] {
+	const normalizedQuery = query.toLowerCase().trim();
+	if (!normalizedQuery) return [];
+
+	// For very short queries (1-2 chars), use exact substring
+	if (normalizedQuery.length <= 2) return searchQuotes(query, language);
+
+	const queryBigrams = toBigrams(normalizedQuery);
+
+	return QUOTES.filter((q) => {
+		const text = language === 'original' ? q.text.original : q.text[language];
+		const haystack = `${text} ${q.author}`.toLowerCase();
+
+		// Fast path: exact substring match
+		if (haystack.includes(normalizedQuery)) return true;
+
+		// Check individual words for fuzzy match
+		const queryWords = normalizedQuery.split(/\s+/);
+		return queryWords.every((word) => {
+			if (haystack.includes(word)) return true;
+			if (word.length <= 2) return false;
+			const wordBigrams = toBigrams(word);
+			// Check if any word in the haystack has high bigram similarity
+			return haystack.split(/\s+/).some((hw) => {
+				if (hw.length <= 2) return false;
+				return bigramSimilarity(wordBigrams, toBigrams(hw)) >= threshold;
+			});
+		});
+	});
+}
+
+function toBigrams(s: string): Set<string> {
+	const bigrams = new Set<string>();
+	for (let i = 0; i < s.length - 1; i++) {
+		bigrams.add(s.slice(i, i + 2));
+	}
+	return bigrams;
+}
+
+function bigramSimilarity(a: Set<string>, b: Set<string>): number {
+	let intersection = 0;
+	for (const bigram of a) {
+		if (b.has(bigram)) intersection++;
+	}
+	return (2 * intersection) / (a.size + b.size);
+}
+
 // Helper function
 function hashString(str: string): number {
 	let hash = 0;