diff --git a/public/nuevo-invitado.html b/public/nuevo-invitado.html
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+<!doctype html>
+<html lang="es">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<meta name="robots" content="noindex, nofollow, noarchive">
+<title>Nuevo enlace de invitado · AQNSN</title>
+<meta name="theme-color" content="#06080d">
+<link rel="icon" href="img/avatar.jpg">
+<link rel="stylesheet" href="styles.css">
+<style>
+  .gen-form { display: grid; gap: 20px; max-width: 560px; }
+  .gen-form label { display: grid; gap: 6px; font-weight: 600; font-size: .95rem; }
+  .gen-form input[type=text], .gen-form input[type=password], .gen-form input[type=datetime-local] {
+    width: 100%; padding: 13px 15px; border-radius: 12px; border: 1px solid var(--line);
+    background: var(--card); color: var(--ink); font: inherit; font-weight: 400; transition: .2s;
+  }
+  .gen-form input:focus { outline: none; border-color: var(--neon); box-shadow: 0 0 0 3px rgba(46,230,255,.18); }
+  .dias-list { display: grid; gap: 10px; }
+  .dia-row { display: flex; gap: 10px; align-items: center; }
+  .dia-row input { flex: 1; }
+  .dia-row .del-dia { background: transparent; border: 1px solid var(--line); color: var(--muted);
+    padding: 8px 13px; border-radius: 8px; font: inherit; cursor: pointer; transition: .2s; flex: none; }
+  .dia-row .del-dia:hover { border-color: #ff8a8a; color: #ff8a8a; }
+  .add-dia { background: transparent; border: 1px dashed var(--line); color: var(--muted);
+    padding: 11px 18px; border-radius: 12px; font: inherit; cursor: pointer; width: 100%; transition: .2s; }
+  .add-dia:hover { border-color: var(--neon); color: var(--neon); }
+  .result-box { display: none; margin-top: 8px; padding: 16px 18px; border: 1px solid var(--line);
+    border-left: 3px solid var(--neon); border-radius: 12px; background: var(--card); }
+  .result-box .url { word-break: break-all; font-size: .92rem; color: var(--neon); margin: 0 0 12px; }
+  .copy-btn { padding: 9px 20px; border-radius: 999px; border: 1px solid var(--neon);
+    background: transparent; color: var(--neon); font: inherit; font-weight: 700; cursor: pointer; transition: .2s; }
+  .copy-btn:hover { background: var(--neon); color: #001a20; }
+  .lock { max-width: 340px; }
+  small { color: var(--muted); font-weight: 400; font-size: .88rem; }
+  #login-err { color: #ff8a8a; font-size: .92rem; min-height: 1.4em; }
+</style>
+</head>
+<body>
+<header class="top">
+  <a class="brand" href="/" aria-label="Anda Que No Sabes Ná, inicio"><img src="img/avatar.jpg" alt="" width="40" height="40"><span>Anda que no sabes ná</span></a>
+</header>
+
+<main class="legal contact">
+  <h1>Nuevo <em>enlace</em> de invitado</h1>
+
+  <div id="login-panel">
+    <p class="lead-c">Solo para el equipo del programa.</p>
+    <form id="login-form" class="gen-form lock" novalidate>
+      <label>Contraseña
+        <input id="pwd" type="password" autocomplete="current-password" required>
+      </label>
+      <p id="login-err"></p>
+      <button class="btn primary" type="submit">Entrar</button>
+    </form>
+  </div>
+
+  <div id="gen-panel" hidden>
+    <p class="lead-c">Rellena el nombre del invitado y los días propuestos. Se generará un enlace que podrás enviarle.</p>
+    <form id="gen-form" class="gen-form" novalidate autocomplete="off">
+      <label>Nombre del invitado <span class="req">*</span>
+        <input id="nombre" type="text" maxlength="60" placeholder="Ej: Ana García" required>
+        <small>Tal como quieres presentarle en el programa.</small>
+      </label>
+
+      <div>
+        <div style="font-weight:600;font-size:.95rem;margin-bottom:8px">Días propuestos <span class="req">*</span></div>
+        <small style="display:block;margin-bottom:12px">Añade entre 1 y 5 opciones. La invitada elegirá la que mejor le venga.</small>
+        <div id="dias-list" class="dias-list"></div>
+        <button type="button" id="add-dia" class="add-dia">+ Añadir otro día</button>
+      </div>
+
+      <div>
+        <div style="font-weight:600;font-size:.95rem;margin-bottom:8px">Modo de enlace</div>
+        <label class="check" style="margin-bottom:8px">
+          <input type="radio" name="modo" value="propuestos" checked>
+          <span>Días propuestos — la invitada elige</span>
+        </label>
+        <label class="check">
+          <input type="radio" name="modo" value="fijo">
+          <span>Fecha fija — ya está confirmada</span>
+        </label>
+      </div>
+
+      <p id="gen-err" class="status err" hidden></p>
+      <button class="btn primary" type="submit">Generar enlace</button>
+    </form>
+
+    <div id="result" class="result-box">
+      <p class="url" id="result-url"></p>
+      <button class="copy-btn" id="copy-btn">Copiar enlace</button>
+    </div>
+  </div>
+</main>
+
+<script>
+(function () {
+  var HASH = '%%PASS_HASH%%';
+
+  async function sha256hex(str) {
+    var buf = await crypto.subtle.digest('SHA-256', new TextEncoder().encode(str));
+    return Array.from(new Uint8Array(buf)).map(function (b) { return b.toString(16).padStart(2, '0'); }).join('');
+  }
+
+  var loginPanel = document.getElementById('login-panel');
+  var genPanel = document.getElementById('gen-panel');
+  var loginForm = document.getElementById('login-form');
+  var loginErr = document.getElementById('login-err');
+  var pwd = document.getElementById('pwd');
+
+  var SESSION_KEY = 'aqnsn-gen-auth';
+  try { if (sessionStorage.getItem(SESSION_KEY) === HASH) { loginPanel.hidden = true; genPanel.hidden = false; } } catch (e) {}
+
+  loginForm.addEventListener('submit', function (e) {
+    e.preventDefault();
+    sha256hex(pwd.value).then(function (h) {
+      if (h === HASH) {
+        try { sessionStorage.setItem(SESSION_KEY, h); } catch (e) {}
+        loginPanel.hidden = true; genPanel.hidden = false; loginErr.textContent = '';
+      } else {
+        loginErr.textContent = 'Contraseña incorrecta.';
+        pwd.value = ''; pwd.focus();
+      }
+    });
+  });
+
+  // --- Generador ---
+  var diasList = document.getElementById('dias-list');
+  var addDiaBtn = document.getElementById('add-dia');
+  var genForm = document.getElementById('gen-form');
+  var genErr = document.getElementById('gen-err');
+  var result = document.getElementById('result');
+  var resultUrl = document.getElementById('result-url');
+  var copyBtn = document.getElementById('copy-btn');
+
+  function addDia(value) {
+    var row = document.createElement('div');
+    row.className = 'dia-row';
+    var inp = document.createElement('input');
+    inp.type = 'datetime-local'; inp.className = 'dia-inp';
+    if (value) inp.value = value;
+    var del = document.createElement('button');
+    del.type = 'button'; del.className = 'del-dia'; del.textContent = '✕';
+    del.addEventListener('click', function () {
+      row.remove();
+      actualizarAddBtn();
+    });
+    row.appendChild(inp); row.appendChild(del);
+    diasList.appendChild(row);
+    actualizarAddBtn();
+  }
+
+  function actualizarAddBtn() {
+    addDiaBtn.style.display = diasList.children.length >= 5 ? 'none' : '';
+  }
+
+  addDia(); // una fila por defecto
+  addDiaBtn.addEventListener('click', function () { addDia(); });
+
+  genForm.addEventListener('submit', function (e) {
+    e.preventDefault();
+    genErr.hidden = true;
+    var nombre = document.getElementById('nombre').value.trim();
+    if (!nombre) { genErr.textContent = 'Escribe el nombre del invitado.'; genErr.hidden = false; return; }
+
+    var modo = genForm.querySelector('input[name="modo"]:checked').value;
+    var inps = Array.prototype.slice.call(diasList.querySelectorAll('input.dia-inp'));
+    var timestamps = [];
+    for (var i = 0; i < inps.length; i++) {
+      var v = inps[i].value;
+      if (!v) continue;
+      var ts = Math.round(new Date(v).getTime() / 1000);
+      if (isNaN(ts)) continue;
+      timestamps.push(ts);
+    }
+    if (timestamps.length === 0) { genErr.textContent = 'Añade al menos un día.'; genErr.hidden = false; return; }
+
+    var base = location.origin + '/invitados.html';
+    var url;
+    if (modo === 'fijo') {
+      if (timestamps.length > 1) { genErr.textContent = 'En modo fecha fija solo puedes indicar un día.'; genErr.hidden = false; return; }
+      url = base + '?n=' + encodeURIComponent(nombre) + '&f=' + timestamps[0];
+    } else {
+      url = base + '?n=' + encodeURIComponent(nombre) + '&d=' + timestamps.join(',');
+    }
+
+    resultUrl.textContent = url;
+    result.style.display = 'block';
+    result.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
+  });
+
+  copyBtn.addEventListener('click', function () {
+    var url = resultUrl.textContent;
+    if (navigator.clipboard) {
+      navigator.clipboard.writeText(url).then(function () {
+        copyBtn.textContent = '¡Copiado!';
+        setTimeout(function () { copyBtn.textContent = 'Copiar enlace'; }, 2000);
+      });
+    } else {
+      var ta = document.createElement('textarea');
+      ta.value = url; document.body.appendChild(ta); ta.select(); document.execCommand('copy');
+      document.body.removeChild(ta);
+      copyBtn.textContent = '¡Copiado!';
+      setTimeout(function () { copyBtn.textContent = 'Copiar enlace'; }, 2000);
+    }
+  });
+})();
+</script>
+</body>
+</html>