Generador de banner de consentimiento de cookies autoalojado

<style>
/* Cookie consent banner - generated by usezivo.com.
   Dependency-free: no fonts, no CDN, no network requests of its own. */

.cc-cookieconsent-root { position: fixed; z-index: 2147483000; }

.cc-cookieconsent-backdrop {
  position: fixed; inset: 0; z-index: 2147482999;
  background: rgba(15, 23, 42, 0.45);
}

.cc-cookieconsent-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0; max-width: none; border-radius: 0; border-left: 0; border-right: 0; border-bottom: 0;
  box-sizing: border-box;
  padding: 18px 20px;
  background: #ffffff;
  color: #0f172a;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.18);
  font: 400 14px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.cc-cookieconsent-title { margin: 0 0 6px; font-size: 15px; font-weight: 700; }
.cc-cookieconsent-text { margin: 0 0 14px; color: #475569; }
.cc-cookieconsent-text a { color: #2563eb; text-decoration: underline; }

/* Accept and Reject are deliberately the SAME component: same size, same
   weight, same visual prominence, side by side at the first level. */
.cc-cookieconsent-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.cc-cookieconsent-btn {
  appearance: none;
  flex: 0 0 auto;
  min-width: 148px;
  padding: 11px 18px;
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  border-radius: 10px;
  border: 1px solid #2563eb;
  background: #2563eb;
  color: #ffffff;
  cursor: pointer;
}
.cc-cookieconsent-btn:hover { filter: brightness(0.94); }
.cc-cookieconsent-btn:focus-visible { outline: 3px solid #2563eb; outline-offset: 2px; }
.cc-cookieconsent-btn--secondary { background: transparent; color: #2563eb; }
.cc-cookieconsent-link {
  appearance: none; background: none; border: 0; padding: 8px 4px;
  font: inherit; color: #475569; text-decoration: underline; cursor: pointer;
}
.cc-cookieconsent-link:hover { color: #0f172a; }

.cc-cookieconsent-panel {
  position: fixed; left: 50%; top: 50%; transform: translate(-50%, -50%);
  box-sizing: border-box;
  width: min(620px, calc(100vw - 32px));
  max-height: min(760px, calc(100vh - 32px));
  overflow-y: auto;
  padding: 22px;
  background: #ffffff; color: #0f172a;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.3);
  font: 400 14px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.cc-cookieconsent-panel h2 { margin: 0 0 6px; font-size: 17px; }
.cc-cookieconsent-panel-intro { margin: 0 0 16px; color: #475569; }

.cc-cookieconsent-cat {
  padding: 14px 0;
  border-top: 1px solid #e2e8f0;
}
.cc-cookieconsent-cat-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.cc-cookieconsent-cat-name { font-weight: 600; }
.cc-cookieconsent-cat-desc { margin: 6px 0 0; color: #64748b; font-size: 13px; }
.cc-cookieconsent-always { font-size: 12px; font-weight: 600; color: #16a34a; }

/* Switch */
.cc-cookieconsent-switch { position: relative; display: inline-block; width: 44px; height: 24px; flex: 0 0 auto; }
.cc-cookieconsent-switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.cc-cookieconsent-slider {
  position: absolute; inset: 0; border-radius: 999px;
  background: #cbd5e1; transition: background 0.15s ease; pointer-events: none;
}
.cc-cookieconsent-slider::after {
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 18px; height: 18px; border-radius: 50%; background: #fff;
  transition: transform 0.15s ease;
}
.cc-cookieconsent-switch input:checked + .cc-cookieconsent-slider { background: #2563eb; }
.cc-cookieconsent-switch input:checked + .cc-cookieconsent-slider::after { transform: translateX(20px); }
.cc-cookieconsent-switch input:focus-visible + .cc-cookieconsent-slider { outline: 3px solid #2563eb; outline-offset: 2px; }

.cc-cookieconsent-panel-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; padding-top: 16px; border-top: 1px solid #e2e8f0; }

@media (max-width: 520px) {
  .cc-cookieconsent-banner { left: 8px; right: 8px; bottom: 8px; max-width: none; border-radius: 14px; border: 1px solid #e2e8f0; transform: none; top: auto; }
  .cc-cookieconsent-btn { flex: 1 1 100%; min-width: 0; }
}

@media (prefers-color-scheme: dark) {
  .cc-cookieconsent-banner, .cc-cookieconsent-panel { background: #0f172a; color: #e2e8f0; border-color: #334155; }
  .cc-cookieconsent-text, .cc-cookieconsent-panel-intro, .cc-cookieconsent-cat-desc { color: #94a3b8; }
  .cc-cookieconsent-cat, .cc-cookieconsent-panel-actions { border-color: #334155; }
  .cc-cookieconsent-link { color: #94a3b8; }
  .cc-cookieconsent-link:hover { color: #e2e8f0; }
  .cc-cookieconsent-slider { background: #475569; }
  @media (max-width: 520px) { .cc-cookieconsent-banner { border-color: #334155; } }
}
</style>

<!-- Cookie consent banner - generated by usezivo.com. Paste before </body>. -->
<div id="cc-cookieconsent-banner" class="cc-cookieconsent-banner" role="dialog" aria-modal="false" aria-labelledby="cc-cookieconsent-title" hidden>
  <p class="cc-cookieconsent-title" id="cc-cookieconsent-title">We use cookies</p>
  <p class="cc-cookieconsent-text">This site uses cookies that are strictly necessary to run the site. With your permission we would also like to set optional cookies. You can accept them all, refuse them all, or choose category by category. <a href="/privacy">Privacy policy</a></p>
  <div class="cc-cookieconsent-actions">
    <button type="button" class="cc-cookieconsent-btn" data-cc-cookieconsent-action="accept">Accept all</button>
    <button type="button" class="cc-cookieconsent-btn" data-cc-cookieconsent-action="reject">Reject all</button>
    <button type="button" class="cc-cookieconsent-link" data-cc-cookieconsent-action="open">Customise</button>
  </div>
</div>

<div id="cc-cookieconsent-panel" class="cc-cookieconsent-panel" role="dialog" aria-modal="true" aria-labelledby="cc-cookieconsent-panel-title" hidden>
  <h2 id="cc-cookieconsent-panel-title">Cookie preferences</h2>
  <p class="cc-cookieconsent-panel-intro">Strictly necessary cookies cannot be switched off. Every other category is off until you turn it on.</p>
      <div class="cc-cookieconsent-cat">
        <div class="cc-cookieconsent-cat-head">
          <span class="cc-cookieconsent-cat-name">Strictly necessary</span>
          <span class="cc-cookieconsent-always">Always active</span>
        </div>
        <p class="cc-cookieconsent-cat-desc">Needed for the site to work: security, load balancing, remembering what is in your basket and storing this cookie choice. These are exempt from consent.</p>
      </div>
      <div class="cc-cookieconsent-cat">
        <div class="cc-cookieconsent-cat-head">
          <span class="cc-cookieconsent-cat-name">Analytics</span>
          <label class="cc-cookieconsent-switch">
              <input type="checkbox" data-cc-cookieconsent-cat="analytics" aria-label="Analytics">
              <span class="cc-cookieconsent-slider"></span>
            </label>
        </div>
        <p class="cc-cookieconsent-cat-desc">Help us understand which pages are visited and where people get stuck, so we can improve the site. Measurement only, never used to target advertising.</p>
      </div>
  <div class="cc-cookieconsent-panel-actions">
    <button type="button" class="cc-cookieconsent-btn" data-cc-cookieconsent-action="save">Save my choices</button>
    <button type="button" class="cc-cookieconsent-btn cc-cookieconsent-btn--secondary" data-cc-cookieconsent-action="accept">Accept all</button>
    <button type="button" class="cc-cookieconsent-btn cc-cookieconsent-btn--secondary" data-cc-cookieconsent-action="reject">Reject all</button>
  </div>
</div>

<script>
/* Cookie consent - generated by usezivo.com. Vanilla JS, no dependencies,
   no network requests. Paste after the markup, or load as an external file. */
(function () {
  "use strict";

  var KEY = "cookieConsent.v1";
  var MAX_AGE_MS = 183 * 24 * 60 * 60 * 1000;
  var OPTIONAL = ["analytics"];
  var PREFIX = "cc-cookieconsent";

  var banner = document.getElementById(PREFIX + "-banner");
  var panel = document.getElementById(PREFIX + "-panel");
  var backdrop = null;
  var lastFocus = null;

  // --- storage ------------------------------------------------------------
  // localStorage can throw outright in some privacy modes, so every access is
  // guarded. If it is unavailable the banner simply reappears next visit,
  // which is the safe direction to fail in: nothing gets unblocked.
  function read() {
    try {
      var raw = localStorage.getItem(KEY);
      if (!raw) return null;
      var saved = JSON.parse(raw);
      if (!saved || typeof saved !== "object") return null;
      if (typeof saved.at !== "number" || Date.now() - saved.at > MAX_AGE_MS) return null;
      var out = { necessary: true };
      for (var i = 0; i < OPTIONAL.length; i++) {
        out[OPTIONAL[i]] = saved.categories && saved.categories[OPTIONAL[i]] === true;
      }
      return out;
    } catch (e) {
      return null;
    }
  }

  function write(categories) {
    try {
      localStorage.setItem(KEY, JSON.stringify({ v: 1, at: Date.now(), categories: categories }));
    } catch (e) {
      /* storage blocked - the choice applies to this page load only */
    }
  }

  var state = read();

  // --- script gating ------------------------------------------------------
  // Third-party tags are written as:
  //   <script type="text/plain" data-cookie-category="analytics" src="..."></script>
  // The browser will not execute type="text/plain", so nothing runs until the
  // matching category is granted, at which point the tag is swapped for a real
  // one. Inline tags work the same way.
  function unblock(granted) {
    var pending = document.querySelectorAll('script[type="text/plain"][data-cookie-category]');
    for (var i = 0; i < pending.length; i++) {
      var node = pending[i];
      var category = node.getAttribute("data-cookie-category");
      if (!granted[category]) continue;
      var real = document.createElement("script");
      for (var a = 0; a < node.attributes.length; a++) {
        var attr = node.attributes[a];
        if (attr.name === "type" || attr.name === "data-cookie-category") continue;
        real.setAttribute(attr.name, attr.value);
      }
      real.type = "text/javascript";
      if (!node.src) real.text = node.text;
      node.parentNode.replaceChild(real, node);
    }
  }

  var listeners = [];
  function emit(granted) {
    unblock(granted);
    for (var i = 0; i < listeners.length; i++) {
      try {
        listeners[i](granted);
      } catch (e) {
        /* one bad listener must not break the rest */
      }
    }
    try {
      document.dispatchEvent(new CustomEvent("cookieConsent:change", { detail: granted }));
    } catch (e) {
      /* CustomEvent unsupported - the callback API still works */
    }
  }

  // --- UI -----------------------------------------------------------------
  function showBanner() {
    if (!banner) return;
    banner.hidden = false;
    /* no backdrop configured */
  }

  function hideBanner() {
    if (banner) banner.hidden = true;
    if (backdrop && backdrop.parentNode) {
      backdrop.parentNode.removeChild(backdrop);
      backdrop = null;
    }
  }

  function boxes() {
    return panel ? panel.querySelectorAll("[data-" + PREFIX + "-cat]") : [];
  }

  function openPanel() {
    if (!panel) return;
    lastFocus = document.activeElement;
    // Reflect the stored choice, or leave every optional box OFF when there is
    // no stored choice yet. Nothing is ever pre-ticked.
    var current = read();
    var list = boxes();
    for (var i = 0; i < list.length; i++) {
      var id = list[i].getAttribute("data-" + PREFIX + "-cat");
      list[i].checked = !!(current && current[id]);
    }
    panel.hidden = false;
    var first = panel.querySelector("button, input");
    if (first) first.focus();
    document.addEventListener("keydown", onKeydown);
  }

  function closePanel() {
    if (!panel) return;
    panel.hidden = true;
    document.removeEventListener("keydown", onKeydown);
    if (lastFocus && lastFocus.focus) lastFocus.focus();
  }

  function onKeydown(e) {
    // Escape closes the PREFERENCES panel only. It never dismisses the banner:
    // dismissing without choosing must not be treated as consent.
    if (e.key === "Escape") closePanel();
  }

  function decide(categories) {
    var granted = { necessary: true };
    for (var i = 0; i < OPTIONAL.length; i++) {
      granted[OPTIONAL[i]] = categories[OPTIONAL[i]] === true;
    }
    state = granted;
    write(granted);
    closePanel();
    hideBanner();
    emit(granted);
  }

  function all(value) {
    var out = {};
    for (var i = 0; i < OPTIONAL.length; i++) out[OPTIONAL[i]] = value;
    return out;
  }

  function fromPanel() {
    var out = {};
    var list = boxes();
    for (var i = 0; i < list.length; i++) {
      out[list[i].getAttribute("data-" + PREFIX + "-cat")] = list[i].checked === true;
    }
    return out;
  }

  document.addEventListener("click", function (e) {
    var target = e.target.closest ? e.target.closest("[data-" + PREFIX + "-action]") : null;
    if (!target) return;
    var action = target.getAttribute("data-" + PREFIX + "-action");
    if (action === "accept") decide(all(true));
    else if (action === "reject") decide(all(false));
    else if (action === "save") decide(fromPanel());
    else if (action === "open") openPanel();
    else if (action === "close") closePanel();
  });

  // --- public API ---------------------------------------------------------
  window["cookieConsent"] = {
    /** true if that category has been granted. Always true for "necessary". */
    has: function (category) {
      if (category === "necessary") return true;
      return !!(state && state[category]);
    },
    /** The full granted map, or null if no choice has been made yet. */
    get: function () {
      return state ? JSON.parse(JSON.stringify(state)) : null;
    },
    /** Run cb now (if a choice exists) and on every later change. Returns an unsubscribe fn. */
    onChange: function (cb) {
      listeners.push(cb);
      if (state) {
        try {
          cb(state);
        } catch (e) {
          /* ignore */
        }
      }
      return function () {
        var i = listeners.indexOf(cb);
        if (i > -1) listeners.splice(i, 1);
      };
    },
    /** Wire this to a permanent "Cookie preferences" link in your footer. */
    openPreferences: openPanel,
    /** Forget the stored choice and ask again. Withdrawal must be as easy as consent. */
    reset: function () {
      try {
        localStorage.removeItem(KEY);
      } catch (e) {
        /* ignore */
      }
      state = null;
      showBanner();
    },
  };

  // --- boot ---------------------------------------------------------------
  if (state) {
    // A stored choice: apply it silently, do not nag.
    emit(state);
  } else {
    // No choice yet -> nothing is unblocked, and the banner asks.
    showBanner();
  }
})();
</script>