انقطاع اتّصال بطابور

<div class="fb fbo">
  <div class="net" role="status"><span class="dot" aria-hidden="true"></span>
    <span class="lbl"></span>
    <button class="sim" data-ar="حاكِ الانقطاع" data-en="Simulate offline">حاكِ الانقطاع</button></div>
  <div class="body">
    <button class="act" data-ar="أرسل تحديث الموقع" data-en="Send location update">أرسل تحديث الموقع</button>
    <ul class="q"></ul>
    <p class="hint"></p>
  </div>
</div>

/* pt-scoped */
/* feedback-offline — تطبيق توصيل */
.fbo{width:100%;height:100%;display:flex;flex-direction:column;
  font-size:10px;color:var(--pt-text-secondary);overflow:hidden}
.fbo h4{margin:0;font-size:11px;color:var(--pt-text-primary);font-weight:600;line-height:1.5}
.fbo p{margin:0;font-size:9px;line-height:1.85;color:var(--pt-text-muted)}
.fbo .num{font-variant-numeric:tabular-nums}
.fbo button{font:inherit;cursor:pointer}
.fbo button:focus-visible, .fbo input:focus-visible, .fbo a:focus-visible{
  outline:2px solid var(--pt-focus-ring);outline-offset:2px}
.fbo button:disabled{cursor:not-allowed;opacity:.45}
/* كل حالة تُعلَن لقارئ الشاشة: تغيّرٌ لا يُرى ولا يُسمَع لم يحدث */
.fbo [role=status], .fbo [role=alert]{display:block}
@media(pointer:coarse){.fbo button{min-height:44px}
}
/* شخصية: شريط حالة علوي، طابور تحته، انحناء متوسّط */
.fbo{gap:8px;padding:10px 12px}
.fbo .net{display:flex;align-items:center;gap:6px;padding:5px 9px;
  border-radius:var(--pt-radius-full);font-size:8.5px;
  background:var(--pt-bg-inset);border:1px solid var(--pt-border-subtle)}
.fbo .dot{width:6px;height:6px;border-radius:50%;flex:none}
.fbo.on .dot{background:var(--pt-accent)}
.fbo.off .dot{background:var(--pt-color-warn-400)}
.fbo.off .net{background:color-mix(in srgb,var(--pt-color-warn-400) 12%,transparent);
  border-color:var(--pt-color-warn-400)}
.fbo .lbl{flex:1}
.fbo .sim{padding:3px 9px;border-radius:var(--pt-radius-full);
  border:1px solid var(--pt-border-default);background:transparent;
  color:var(--pt-text-secondary);font-size:7.5px}
.fbo .body{flex:1;display:flex;flex-direction:column;gap:6px;min-height:0}
.fbo .act{padding:7px;border-radius:var(--pt-radius-md);border:0;
  background:var(--pt-accent);color:var(--pt-color-ink-900);font-size:9px;font-weight:600}
.fbo .q{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:3px;
  flex:1;overflow-y:auto;min-height:0}
.fbo .q li{display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:4px 8px;border-radius:var(--pt-radius-sm);background:var(--pt-surface);
  border:1px solid var(--pt-border-subtle);font-size:8px}
.fbo .q .st{font-size:7.5px}
.fbo .q li.pend .st{color:var(--pt-color-warn-400)}
.fbo .q li.sent .st{color:var(--pt-accent)}
.fbo .hint{font-size:7.5px;min-height:10px}

/* يعمل داخل إطار معزول — لا يعتمد على شيء خارجه */
/* pt-remount — يعاد التركيب عند تبديل اللغة */
(function () {
  var host = document.querySelector('.fbo');
  if (!host) return;
  var snapshot = host.innerHTML;
  var timers = [];
  var ac = null;

  /* الجسم كما كتبه المولِّد. يستقبل بدائل مظلَّلة لـ root وdocument
     والمؤقّتات، فينظّف نفسه دون أن يعرف أنه قابل لإعادة التركيب. */
  function run(root, document, setTimeout, setInterval) {
    var ar = document.documentElement.lang !== 'en';
    var n = function (v, d) { return Number(v).toLocaleString('en-US', {
      minimumFractionDigits: d || 0, maximumFractionDigits: d || 0 }); };
    var net = root.querySelector('.lbl'), q = root.querySelector('.q');
    var hint = root.querySelector('.hint'), act = root.querySelector('.act');
    var forced = false, seq = 0;
    function online() { return !forced && navigator.onLine; }
    function paint() {
      root.className = 'fb fbo ' + (online() ? 'on' : 'off');
      net.textContent = online() ? (ar ? 'متّصل' : 'Online')
                                 : (ar ? 'غير متّصل — الإجراءات تُحفظ' : 'Offline — actions are queued');
      if (online()) flush();
    }
    /* الطابور بدل الفشل: فقدان نقرة لأنّ النفق بلا تغطية أسرع طريق لفقدان الطلب */
    function flush() {
      var pend = [].slice.call(q.querySelectorAll('li.pend'));
      if (!pend.length) return;
      pend.forEach(function (li, i) {
        setTimeout(function () {
          li.className = 'sent';
          li.querySelector('.st').textContent = ar ? '✓ أُرسل' : '✓ Sent';
        }, 260 * (i + 1));
      });
      hint.textContent = ar ? 'عادت الشبكة — أُرسل ' + pend.length + ' من الطابور'
                            : 'Back online — flushed ' + pend.length + ' queued';
    }
    act.addEventListener('click', function () {
      var li = document.createElement('li');
      var t = new Date().toLocaleTimeString(ar ? 'ar-SA-u-nu-latn' : 'en-GB',
        { hour: '2-digit', minute: '2-digit', second: '2-digit' });
      li.className = online() ? 'sent' : 'pend';
      li.innerHTML = '<span>' + (ar ? 'تحديث موقع #' : 'Location #') + (++seq) +
        ' · ' + t + '</span><span class="st">' +
        (online() ? (ar ? '✓ أُرسل' : '✓ Sent') : (ar ? '⏳ في الطابور' : '⏳ Queued')) + '</span>';
      q.appendChild(li);
      q.scrollTop = q.scrollHeight;
      hint.textContent = online() ? '' : (ar ? 'سيُرسل تلقائيًّا عند عودة الشبكة'
                                             : 'Will send automatically when the network returns');
    });
    root.querySelector('.sim').addEventListener('click', function () { forced = !forced; paint(); });
    addEventListener('online', paint);
    addEventListener('offline', paint);
    paint();
  }

  function mount() {
    ac = new AbortController();
    var real = window.document;
    /* وسيط يمرّر كل شيء إلى المستند الحقيقي، ويعلّق كل مستمع بإشارة
       تُقطع عند إعادة التركيب — فلا يبقى مستمع من نسخة ماتت. */
    var doc = new Proxy(real, {
      get: function (t, k) {
        if (k === 'addEventListener') {
          return function (type, fn, opts) {
            var o = (opts && typeof opts === 'object') ? Object.assign({}, opts)
                                                       : { capture: !!opts };
            o.signal = ac.signal;
            return t.addEventListener(type, fn, o);
          };
        }
        var v = t[k];
        return typeof v === 'function' ? v.bind(t) : v;
      }
    });
    function track(fn) {
      return function (f, ms) { var id = fn(f, ms); timers.push(id); return id; };
    }
    run(host, doc, track(window.setTimeout.bind(window)),
        track(window.setInterval.bind(window)));
  }

  function unmount() {
    if (ac) ac.abort();
    // المعرّفان يتشاركان فضاءً واحدًا في المتصفّح، فالإلغاء المزدوج آمن
    timers.forEach(function (id) { window.clearTimeout(id); window.clearInterval(id); });
    timers = [];
    host.innerHTML = snapshot;
  }

  mount();
  addEventListener('pt-lang', function () { unmount(); mount(); });
})();

# Offline with a Queue

**Role:** You are an Arabic-first UI designer and front-end engineer. Read the whole
specification before writing a single line, then follow it literally. If two requirements
conflict, favour usability over visual effect.

**Goal:** Offline with a Queue — Holds what could not be sent and flushes it when the network returns

**Why this component matters:** Listen to the online and offline events, and queue user actions instead of failing them. Losing a tap because the tunnel had no signal is the fastest way to lose the order.

**Direction:** Genuine RTL — not a mirrored Latin layout. Use logical properties
(`margin-inline-start`, `padding-inline`, `inset-inline-start`, `text-align: start`),
never physical ones (`margin-left`, `left`). The layout must flip with `dir` on its own,
with no duplicated rules.

**Typography:** Cairo for Arabic, IBM Plex Sans for Latin. Arabic line-height must be
`0.18` higher than the Latin equivalent — dots, hamzas and maddas need more vertical room.
Arabic font-size runs `1.06×` the Latin size at the same optical weight.

**Numerals:** Western digits in both languages (`1,234.50`). Only the currency changes:
`ر.س` **after** the number in Arabic, `$` **before** it in English. Jordanian dinar
uses **three** decimal places, not two.

**Colors:** Dark mode — background `#0D142B` · surfaces `#211F54` · borders `#545C91` · text `#918FC2`.
Accent `#ADA9E8` must never exceed 8% of the screen area.

**Language:** Bilingual — every string carries both Arabic and English, and the layout
flips with `dir` automatically.

**States:** `default` · `hover` · `focus` · `active` · `disabled` · `loading` · `error`.
Do not design the resting state alone.

**Accessibility:** Contrast ratio at least `4.5:1`, complete keyboard navigation,
visible focus rings, and honour `prefers-reduced-motion`.

**Output:** Clean HTML and CSS in two separate files. No frameworks, no libraries,
no external dependencies.