fix: normalize accented country searches

components/SearchBar.jsx

@@ -2,6 +2,7 @@
 
 import React, { useState, useRef, useCallback } from 'react';
 import SpecialTags from './SpecialTags.jsx';
+import { countryKey } from '../lib/country.js';
 
 const SAMPLES_BY_MODE = {
   text: [
@@ -45,10 +46,11 @@ export default function SearchBar({ developers, onResults, onReset, onGenerateCa
 
     if (m === 'text') {
       const lower = q.trim().toLowerCase();
+      const locationKey = countryKey(q.trim());
       let results = developers.filter(d =>
         (d.login && d.login.toLowerCase().includes(lower)) ||
         (d.name && d.name.toLowerCase().includes(lower)) ||
-        (d.location && d.location.toLowerCase().includes(lower))
+        (d.location && countryKey(d.location).includes(locationKey))
       );
 
       if (results.length === 0) {

lib/country.js

@@ -72,7 +72,10 @@ export function normalizeCountry(name) {
 
 // Comparable form — use whenever two country names from different sources are matched
 export function countryKey(name) {
-  return normalizeCountry(name).toLowerCase();
+  return normalizeCountry(name)
+    .normalize('NFD')
+    .replace(/[\u0300-\u036f]/g, '')
+    .toLowerCase();
 }
 
 export function normalizeCity(name) {

tests/country.test.js

@@ -0,0 +1,9 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { countryKey, extractCountry } from '../lib/country.js';
+
+test('countryKey matches accented country names to unaccented map names', () => {
+  assert.equal(countryKey(extractCountry('Perú')), countryKey('Peru'));
+  assert.equal(countryKey('España'), countryKey('Espana'));
+  assert.ok(countryKey('Lima, Perú').includes(countryKey('Peru')));
+});