Añadido juego de las banderas.

banderas/script.js

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+// Lista completa con país y siglas según ISO 3166-1 alpha-2
+const countryList = [
+  { name: "España", code: "ES" }, { name: "Francia", code: "FR" }, { name: "Alemania", code: "DE" }, { name: "Italia", code: "IT" },
+  { name: "Portugal", code: "PT" }, { name: "Reino Unido", code: "GB" }, { name: "Estados Unidos", code: "US" }, { name: "Canadá", code: "CA" },
+  { name: "México", code: "MX" }, { name: "Brasil", code: "BR" }, { name: "Argentina", code: "AR" }, { name: "Chile", code: "CL" },
+  { name: "Japón", code: "JP" }, { name: "China", code: "CN" }, { name: "Australia", code: "AU" }, { name: "Rusia", code: "RU" },
+  { name: "Sudáfrica", code: "ZA" }, { name: "Nueva Zelanda", code: "NZ" }, { name: "India", code: "IN" }, { name: "Egipto", code: "EG" },
+  { name: "Grecia", code: "GR" }, { name: "Turquía", code: "TR" }, { name: "Ucrania", code: "UA" }, { name: "Suecia", code: "SE" },
+  { name: "Noruega", code: "NO" }, { name: "Dinamarca", code: "DK" }, { name: "Finlandia", code: "FI" }, { name: "Irlanda", code: "IE" },
+  { name: "Bélgica", code: "BE" }, { name: "Polonia", code: "PL" }, { name: "Suiza", code: "CH" }, { name: "Países Bajos", code: "NL" }
+];
+
+function getFlagEmoji(code) {
+  // Las banderas se generan a partir de letras usando unicode, no por siglas textuales
+  // Solo funcionan para países con código alpha-2 y script latino
+  if (!code || code.length !== 2) return "";
+  return String.fromCodePoint(
+    ...code.toUpperCase().split("").map(c => 0x1F1E6 + c.charCodeAt(0) - 65)
+  );
+}
+
+// Para elegir N países aleatorios distintos con bandera
+function pickRandomCountries(list, n) {
+  const chosen = [];
+  const used = {};
+  while (chosen.length < n && list.length > 0) {
+    let idx = Math.floor(Math.random() * list.length);
+    let c = list[idx];
+    let flag = getFlagEmoji(c.code);
+    if (flag && !used[c.code]) {
+      chosen.push({name: c.name, code: c.code, flag});
+      used[c.code] = true;
+    }
+    list.splice(idx,1);
+  }
+  return chosen;
+}
+
+let flagsDiv = document.getElementById('flags');
+let countriesDiv = document.getElementById('countries');
+let statusDiv = document.getElementById('status');
+let scoreSpan = document.getElementById('score-value');
+let scoreTotal = document.getElementById('score-total');
+let restartBtn = document.getElementById('restart-btn');
+
+let pairs = [], flags = [], countries = [], selectedFlag = null, selectedCountry = null, score = 0, totalPairs = 12;
+
+function shuffle(arr) {
+  for (let i = arr.length-1; i>0; i--) {
+    const j = Math.floor(Math.random() * (i+1));
+    [arr[i], arr[j]] = [arr[j], arr[i]];
+  }
+}
+
+function startGame() {
+  let fullList = countryList.slice(); // copia
+  pairs = pickRandomCountries(fullList, totalPairs);
+  flags = pairs.map(o=>o);
+  countries = pairs.map(o=>o);
+  shuffle(flags); shuffle(countries);
+  score = 0;
+  scoreSpan.textContent = score;
+  scoreTotal.textContent = pairs.length;
+  selectedFlag = selectedCountry = null;
+  renderFlags();
+  renderCountries();
+  statusDiv.textContent = 'Empareja todas las banderas con su país';
+}
+
+function renderFlags() {
+  flagsDiv.innerHTML = '';
+  flags.forEach((p, i) => {
+    const d = document.createElement('div');
+    d.className = 'flag';
+    d.textContent = p.flag;
+    d.setAttribute('tabindex', 0);
+    d.onclick = () => selectFlag(i);
+    if (p.matched) d.classList.add('matched');
+    if (selectedFlag === i) d.classList.add('selected');
+    flagsDiv.appendChild(d);
+  });
+}
+
+function renderCountries() {
+  countriesDiv.innerHTML = '';
+  countries.forEach((p, i) => {
+    const d = document.createElement('div');
+    d.className = 'country';
+    d.textContent = p.name;
+    d.setAttribute('tabindex', 0);
+    d.onclick = () => selectCountry(i);
+    if (p.matched) d.classList.add('matched');
+    if (selectedCountry === i) d.classList.add('selected');
+    countriesDiv.appendChild(d);
+  });
+}
+
+function selectFlag(i) {
+  if (flags[i].matched) return;
+  selectedFlag = i;
+  renderFlags();
+  if (selectedCountry !== null) checkMatch();
+}
+
+function selectCountry(i) {
+  if (countries[i].matched) return;
+  selectedCountry = i;
+  renderCountries();
+  if (selectedFlag !== null) checkMatch();
+}
+
+function checkMatch() {
+  const flagObj = flags[selectedFlag];
+  const countryObj = countries[selectedCountry];
+  if (flagObj.code === countryObj.code) {
+    flags[selectedFlag].matched = true;
+    countries[selectedCountry].matched = true;
+    score++;
+    scoreSpan.textContent = score;
+    statusDiv.textContent = '¡Correcto!';
+    renderFlags();
+    renderCountries();
+    if (score === pairs.length) {
+      statusDiv.textContent = '¡Has emparejado todas las banderas! 🎉';
+    }
+  } else {
+    statusDiv.textContent = 'No es correcto, intenta otra vez.';
+    setTimeout(() => {
+      statusDiv.textContent = '';
+      selectedFlag = selectedCountry = null;
+      renderFlags();
+      renderCountries();
+    }, 850);
+    return;
+  }
+  selectedFlag = null;
+  selectedCountry = null;
+}
+
+restartBtn.onclick = startGame;
+startGame();