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    <div class="brand"><span class="dot"></span><span>RF SAFE • TruthCase™</span></div>
    <div class="row">
      <a class="btn ghost" href="#truths">The Four Truths</a>
      <a class="btn ghost" href="#how">How to Use</a>
      <a class="btn ghost" href="#policy">Policy Roadmap</a>
      <button class="btn primary" id="openModalBtn" type="button">Select Your Phone</button>
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<div class="wrap">
  
  <header class="hero reveal">
    <span class="eyebrow">RF SAFE • Since the 1990s</span>
    <h1>TruthCase™ — the case that tells the truth</h1>
    <p class="subtitle">
      RF SAFE pioneered exposure‑reduction phone cases in the <strong>1990s</strong>. TruthCase™ is different: a first‑principles design with one goal—reduce everyday microwave exposure responsibly and teach the roadmap forward (<em>design • usage • policy • procedure</em>).
    </p>
    <div class="badges" role="list">
      <span class="badge" role="listitem">Shield between you & phone</span>
      <span class="badge" role="listitem">No metal loops • No magnets</span>
      <span class="badge" role="listitem">Antenna‑aware & ultra‑thin</span>
      <span class="badge" role="listitem">Ohmmeter‑checkable shield</span>
    </div>
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      <a class="btn" href="#truths">Learn why TruthCase™ is different</a>
    </div>
  </header>

<section class="section card reveal">
    <h2 style="margin:0 0 8px;color:var(--brand-ink)">Different on purpose</h2>
    <p class="lead">Most “anti‑radiation” cases are built around convenience hardware and marketing numbers. TruthCase™ is built around physics and behavior.</p>
    <div class="grid cols-3">
      <div class="card">
        <h3 style="margin:.2rem 0 6px">Design</h3>
        <p>Directional shielding only when it matters (between you & phone). No metal loops, magnets, or plate steel. Continuity near the ear.</p>
      </div>
      <div class="card">
        <h3 style="margin:.2rem 0 6px">Usage</h3>
        <p>The habits that move the needle: call posture, pocket orientation, night distance, disabling idle radios.</p>
      </div>
      <div class="card">
        <h3 style="margin:.2rem 0 6px">Roadmap</h3>
        <p>From better cases today to <strong>light‑based networking</strong> and modernized policy tomorrow—so indoor connectivity relies more on light and less on microwaves.</p>
      </div>
    </div>
  </section>

<section id="truths" class="section card reveal">
    <h2 style="margin:0 0 6px;color:var(--brand-ink)">The Four Truths the Market Ignores</h2>

<details open>
      <summary>Truth #1 — Unshielded ear‑side holes break protection where you need it most</summary>
      <p>Large speaker apertures on the ear side create a direct path for higher‑frequency signals and defeat continuity at the very spot you rely on protection during calls. TruthCase™ uses a shielded ear‑side path and keeps continuity by design.</p>
    </details>

<details>
      <summary>Truth #2 — Detachable magnets & steel plates can provoke higher transmit power</summary>
      <p>Magnets and plate steel behind the phone obstruct or detune antennas. Modern handsets respond by boosting transmit power to hold the link. Result: more exposure, not less. TruthCase™ excludes magnetic detachables and plate steel by design.</p>
    </details>

<details>
      <summary>Truth #3 — Metal loops and decorative hardware near antennas can detune the system</summary>
      <p>Conductive hardware close to radiators alters near‑field behavior and can degrade antenna efficiency. Phones compensate—with higher output. TruthCase™ has <strong>no metal loops</strong> and stays thin near antenna zones.</p>
    </details>

<details>
      <summary>Truth #4 — “99% protection” fabric numbers ≠ everyday exposure</summary>
      <p>A swatch test is not your life. Real‑world reduction depends on <em>where</em> the shield is (relative to your body), <em>how</em> the antennas perform, and <em>how long</em> radios are active. TruthCase™ focuses on device behavior and user practice—no “99% everywhere” slogans.</p>
    </details>

<div class="card" style="margin-top:12px">
      <h3 style="margin:0 0 6px;color:var(--brand-ink)">Ten short truths</h3>
      <p class="slogan">Shield the person, not the phone.</p>
      <p class="slogan">Placement beats percentage.</p>
      <p class="slogan">Thin near antennas. Always.</p>
      <p class="slogan">No magnets, no metal loops, no plate steel.</p>
      <p class="slogan">Continuity at the ear matters.</p>
      <p class="slogan">Duty cycle is exposure—turn off idle radios.</p>
      <p class="slogan">Distance at night is free protection.</p>
      <p class="slogan">Honest design beats “99% everywhere.”</p>
      <p class="slogan">Personal mitigation now, public defaults next.</p>
      <p class="slogan">Light indoors, fewer microwaves—future‑ready.</p>
    </div>
  </section>

<section class="section card reveal">
    <h2 style="margin:0 0 6px;color:var(--brand-ink)">The Truth Standard™</h2>
    <div class="table">
      <table>
        <thead><tr><th>Principle</th><th>Meaning</th><th>TruthCase™ Position</th></tr></thead>
        <tbody>
          <tr>
            <td><strong>Shield the person, not the phone</strong></td>
            <td>Place the shield <em>between</em> you & the source during use (calls, pocket carry).</td>
            <td>Front cover toward head/body; directional use is the point.</td>
          </tr>
          <tr>
            <td><strong>Keep antennas efficient</strong></td>
            <td>Don’t obstruct/detune radiators and trigger power boosts.</td>
            <td><strong>No metal loops, no magnets, no plate steel</strong>; thin where radios live.</td>
          </tr>
          <tr>
            <td><strong>Continuity at the ear</strong></td>
            <td>Avoid a big unshielded aperture aligned with the ear canal.</td>
            <td>Shielded ear‑side path; continuity maintained in call posture.</td>
          </tr>
          <tr>
            <td><strong>Field behavior > fabric %</strong></td>
            <td>Judge protection by device behavior in use—not a swatch number.</td>
            <td>No “99% everywhere” claims; we teach how to use it right.</td>
          </tr>
          <tr>
            <td><strong>Verifiable materials</strong></td>
            <td>Let people confirm a conductive shield path.</td>
            <td>Ohmmeter‑checkable access point in the front cover.</td>
          </tr>
        </tbody>
      </table>
    </div>
  </section>

<section id="how" class="section grid cols-2 reveal">
    <div class="card">
      <h3 style="margin:0 0 6px;color:var(--brand-ink)">How to use TruthCase™ (the habits)</h3>
      <ul>
        <li><strong>Calls:</strong> answer/start, then close the cover <em>toward your head</em>; use speaker or wired for long calls.</li>
        <li><strong>Pocket:</strong> shielded cover toward your body (back pocket often best).</li>
        <li><strong>Night:</strong> increase distance or airplane mode; don’t park the phone near your head.</li>
        <li><strong>Duty cycle:</strong> turn off idle transmitters you don’t need (Wi‑Fi, Bluetooth, hotspot).</li>
      </ul>
      <p class="muted">Protection is practice + design. The case enables the practice to work.</p>
    </div>
    <div class="card">
      <h3 style="margin:0 0 6px;color:var(--brand-ink)">Why thin matters</h3>
      <p>Over‑thick “armor” near antenna zones degrades efficiency and can make the phone transmit harder. TruthCase™ keeps a deliberately slim, antenna‑aware profile so your phone can do the same job with less output.</p>
      <p class="slogan">Not anti‑radiation. <strong>Pro‑truth.</strong></p>
    </div>
  </section>

<section id="policy" class="section card reveal">
    <h2 style="margin:0 0 6px;color:var(--brand-ink)">From personal mitigation to public defaults</h2>
    <p class="lead">Reducing exposure at scale requires policy and standards—not just products.</p>

<div class="grid cols-3">
      <div class="card">
        <h3 style="margin:.2rem 0 6px">1) Update siting law</h3>
        <p><strong>Section 704 (1996)</strong> limits local health‑based arguments on RF emissions for compliant facilities. Communities need a modern framework that allows health to be considered alongside coverage and aesthetics.</p>
        <p><a href="#refs">See references</a></p>
      </div>
      <div class="card">
        <h3 style="margin:.2rem 0 6px">2) Finish the science</h3>
        <p>Maintain and fund federal RF research and performance standards (e.g., under the 1968 radiation control law) to keep guidance current with today’s signal environments and duty cycles.</p>
        <p><a href="#refs">See references</a></p>
      </div>
      <div class="card">
        <h3 style="margin:.2rem 0 6px">3) Promote light indoors</h3>
        <p>Adopt <strong>light‑based networking</strong> (Li‑Fi) where feasible. The <strong>IEEE 802.11bb</strong> standard makes optical networking a first‑class citizen alongside Wi‑Fi. Indoors, light stays in the room—performance with privacy.</p>
        <p><a href="#refs">See references</a></p>
      </div>
    </div>

<div class="callout" style="margin-top:10px">
      <strong>The TruthCase™ is a bridge.</strong> It reduces exposure now—and helps people advocate for healthier defaults (schools, bedrooms, offices) where the goal is less routine microwave traffic and more light‑based links.
    </div>
  </section>

<section class="section card reveal">
    <h2 style="margin:0 0 6px;color:var(--brand-ink)">Quick answers</h2>
    <div class="grid cols-2">
      <div class="card">
        <h3>Does it “block 99%”?</h3>
        <p>No slogans. Real‑world reduction depends on placement, antenna performance, and duty cycle. We teach the practice that lowers exposure; we do not promise swatch numbers.</p>
      </div>
      <div class="card">
        <h3>Is thicker better?</h3>
        <p>Not near antennas. Over‑thick materials can degrade efficiency and provoke higher transmit power. Thin + correct placement wins.</p>
      </div>
    </div>
  </section>

<section id="refs" class="section card reveal">
    <h2 style="margin:0 0 6px;color:var(--brand-ink)">References & Further Reading</h2>
    <ol>
      <li>FTC consumer guidance noting that some “shields” can interfere with signal and cause phones to draw more power (which can increase emissions).  
        <br><a href="https://consumer.ftc.gov/articles/cell-phone-radiation-scams" target="_blank" rel="noopener">consumer.ftc.gov/articles/cell-phone-radiation-scams</a>
      </li>
      <li>Telecommunications Act of 1996, 47 U.S.C. §332(c)(7) (often cited as “Section 704”).  
        <br><a href="https://www.law.cornell.edu/uscode/text/47/332" target="_blank" rel="noopener">law.cornell.edu/uscode/text/47/332</a>
      </li>
      <li>Environmental Health Trust v. FCC (D.C. Cir. 2021) — court remand requiring a reasoned explanation on non‑cancer harms and modern usage patterns before reaffirming 1996 limits.  
        <br><a href="https://law.justia.com/cases/federal/appellate-courts/cadc/20-1025/20-1025-2021-08-13.html" target="_blank" rel="noopener">law.justia.com/.../20-1025-2021-08-13.html</a>
      </li>
      <li>U.S. National Toxicology Program (cell phone RFR studies) — program pages and fact sheets.  
        <br><a href="https://ntp.niehs.nih.gov/whatwestudy/topics/cellphones/index.html" target="_blank" rel="noopener">ntp.niehs.nih.gov/.../cellphones</a>
      </li>
      <li>IEEE 802.11bb — optical (Li‑Fi) standard in the 802.11 family (2023).  
        <br><a href="https://standards.ieee.org/ieee/802.11bb/11055/" target="_blank" rel="noopener">standards.ieee.org/ieee/802.11bb/11055/</a>
      </li>
    </ol>
    <p class="muted small">Educational content only. Not medical, legal, or engineering advice.</p>
  </section>

<section class="section card reveal" style="text-align:center">
    <h2 style="margin:0 0 6px;color:var(--brand-ink)">The only case for your phone should be a TruthCase™</h2>
    <p style="max-width:840px;margin:0 auto">
      A case should <strong>reduce exposure in real use</strong>—without forcing your phone to work harder and without promising “99% everywhere.”  
      TruthCase™ is built for <strong>physics</strong>, for <strong>people</strong>, and for a <strong>future</strong> where indoor connectivity relies more on light and less on microwaves.
    </p>
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  </section>

<footer>
    <p><strong>RF SAFE</strong> introduced exposure‑reduction cases in the 1990s and continues to set a first‑principles standard: no metal loops, no magnets or plate steel, a shielded ear‑side aperture, antenna‑aware thin design, and ohmmeter‑verified shielding—paired with honest usage guidance.</p>
    <p class="muted">© RF SAFE — This page focuses on reducing RF (microwave) exposure in everyday device use.</p>
  </footer>
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  document.removeEventListener('keydown', trapFocus);
  document.removeEventListener('keydown', escToClose);

document.body.classList.remove('modal-open');
  document.body.style.overflow = '';

backdrop.style.opacity = '0';
  modal.style.opacity = '0';
  modal.setAttribute('aria-hidden','true');

setTimeout(()=>{
    backdrop.style.display = 'none';
    modal.style.display = 'none';
  }, 200);

if(lastFocused && typeof lastFocused.focus === 'function'){
    lastFocused.focus();
  }
}
backdrop.addEventListener('click', closeModal);
closeModalBtn.addEventListener('click', closeModal);
openModalBtns.forEach(b=>b && b.addEventListener('click', openModal));

/* ---------------------- DATA LOADING ---------------------- */
async function loadData(){
  try{
    const res = await fetch('truthcases.json', {cache:'no-store'});
    if(!res.ok) throw new Error('HTTP '+res.status);
    const j = await res.json();
    DATA = Object.assign({settings:{}, products:[]}, j||{});
    if(!DATA.products || !Array.isArray(DATA.products) || !DATA.products.length) throw new Error('No products');
  }catch(err){
    console.warn('truthcases.json not found or invalid, using demo data.', err);
    DATA = {
      settings:{ defaultAffiliateParam:'ref', defaultAmazonTagParam:'tag' },
      products:[
        { manufacturer:'Apple',   title:'TruthCase™ for iPhone 15 Pro Max (Black)', sku:'QC-IP15PM-BLK', asin:'B0DEMO1234', price:59.95, salePrice:49.95, buyUrl:'https://www.rfsafe.com/product/truthcase-iphone-15-pro-max/', affiliateId:'RFS_DEFAULT', amazonTag:'rfsafe-20' },
        { manufacturer:'Samsung', title:'TruthCase™ for Galaxy S24 Ultra (Black)',   sku:'QC-S24U-BLK',   asin:'',          price:57.95, salePrice:null,  buyUrl:'https://www.rfsafe.com/product/truthcase-s24-ultra/',      affiliateId:'RFS_DEFAULT', amazonTag:'' }
      ]
    };
  }
}

/* ---------------------- BUILDERS ---------------------- */
function buildManufacturers(){
  manufacturers = unique((DATA.products||[]).map(p => (p.manufacturer||'').trim()).filter(Boolean));
}
function renderManufacturerSelect(){
  manuSelect.innerHTML='';
  const ph=document.createElement('option'); ph.value=''; ph.textContent='Choose manufacturer…'; manuSelect.appendChild(ph);
  manufacturers.forEach(m=>{ const o=document.createElement('option'); o.value=m; o.textContent=m; manuSelect.appendChild(o); });
  manuSelect.value = selectedManufacturer || '';
}
function renderModelSelect(list, el){
  el.innerHTML='';
  const ph=document.createElement('option'); ph.value=''; ph.textContent='Choose model…'; el.appendChild(ph);
  list.forEach((p,idx)=>{
    const o=document.createElement('option');
    o.value=String(idx);
    const manu=(p.manufacturer||'').trim();
    o.textContent = (el===modelSelectSolo && manu) ? `${manu} — ${p.title}` : (p.title||`Model ${idx+1}`);
    el.appendChild(o);
  });
  el.value='';
}

/* ---------------------- LINKS ---------------------- */
function currentAffiliateRef(p){ return (affiliateRef || p.affiliateId || '').trim(); }
function currentAmazonTag(p){   return (amazonTag   || p.amazonTag   || '').trim(); }
function buildDirectUrl(p){
  const base=(p.buyUrl||'').trim(); if(!base) return '';
  const paramKey=(DATA.settings && DATA.settings.defaultAffiliateParam) || 'ref';
  const code=currentAffiliateRef(p);
  return appendParam(base, paramKey, code || '');
}
function buildAmazonUrl(p){
  const asin=(p.asin||'').trim(); if(!asin) return '';
  const tagKey=(DATA.settings && DATA.settings.defaultAmazonTagParam) || 'tag';
  const tagVal=currentAmazonTag(p);
  let base=`https://www.amazon.com/dp/${encodeURIComponent(asin)}`;
  return tagVal ? appendParam(base, tagKey, tagVal) : base;
}

/* ---------------------- SELECTION & EVENTS ---------------------- */
function showButtonsForProduct(p){
  const dir=buildDirectUrl(p);
  const amz=buildAmazonUrl(p);

if(amz){ buyAmazonBtn.href=amz; buyAmazonBtn.style.display='inline-flex'; }
  else   { buyAmazonBtn.removeAttribute('href'); buyAmazonBtn.style.display='none'; }

if(dir){ buyDirectBtn.href=dir; buyDirectBtn.style.display='inline-flex'; }
  else   { buyDirectBtn.removeAttribute('href'); buyDirectBtn.style.display='none'; }

buyButtons.style.display = (amz || dir) ? 'flex' : 'none';
}

function announce(msg){ if(announceEl) announceEl.textContent = msg || ''; }

manuSelect.addEventListener('change', ()=>{
  selectedManufacturer = manuSelect.value;
  filteredProducts = selectedManufacturer
    ? DATA.products.filter(p => (p.manufacturer||'').trim()===selectedManufacturer)
    : DATA.products.slice();

// Reveal the model column only after manufacturer is chosen (chained select)
  if(selectedManufacturer){
    modelCol.classList.remove('is-hidden');
    modelSelect.disabled=false;
    renderModelSelect(filteredProducts, modelSelect);
    announce(`Manufacturer ${selectedManufacturer} selected. Choose a model.`);
  }else{
    modelCol.classList.add('is-hidden');
    modelSelect.disabled=true;
    modelSelect.innerHTML='';
    announce(`Manufacturer cleared. Please select a manufacturer.`);
  }
  buyButtons.style.display='none';
});

modelSelect.addEventListener('change', ()=>{
  const idx=parseInt(modelSelect.value,10);
  if(Number.isFinite(idx) && idx>=0){
    const p = filteredProducts[idx];
    if(p){ showButtonsForProduct(p); announce(`Model ${p.title} selected.`); }
  } else {
    buyButtons.style.display='none';
  }
});

modelSelectSolo.addEventListener('change', ()=>{
  const idx=parseInt(modelSelectSolo.value,10);
  if(Number.isFinite(idx) && idx>=0){
    const p = DATA.products[idx];
    if(p){ showButtonsForProduct(p); announce(`Model ${p.title} selected.`); }
  } else {
    buyButtons.style.display='none';
  }
});

/* ---------------------- DEEP-LINK PRESELECT ---------------------- */
function findProductFromDeepLink(){
  const qSku  = getQS('sku');
  const qAsin = getQS('asin');
  const qManu = getQS('manu') || getQS('manufacturer');
  const qModel= getQS('model') || getQS('title');

if(qSku){
    const p = DATA.products.find(pr => pr.sku && norm(pr.sku) === norm(qSku));
    if(p) return p;
  }
  if(qAsin){
    const p = DATA.products.find(pr => pr.asin && norm(pr.asin) === norm(qAsin));
    if(p) return p;
  }
  if(qModel){
    let p = DATA.products.find(pr => norm(pr.title) === norm(qModel));
    if(!p) p = DATA.products.find(pr => norm(pr.title).includes(norm(qModel)));
    if(p) return p;
  }
  if(qManu){ return { __manuOnly:true, manufacturer:qManu }; }
  return null;
}

/* ---------------------- INIT ---------------------- */
(async function init(){
  // Capture affiliate overrides from URL (persist quietly)
  const qRef=getQS('ref'); const qTag=getQS('atag');
  if(qRef) localStorage.setItem('truthcase_ref', qRef);
  if(qTag) localStorage.setItem('truthcase_atag', qTag);
  affiliateRef = qRef || localStorage.getItem('truthcase_ref') || '';
  amazonTag   = qTag || localStorage.getItem('truthcase_atag') || '';

await loadData();
  buildManufacturers();

if(manufacturers.length>0){
    manuRow.style.display='';
    modelOnlyRow.style.display='none';
    selectedManufacturer='';
    renderManufacturerSelect();
    // model is hidden until manufacturer picked (chained)
    modelCol.classList.add('is-hidden');
    modelSelect.disabled=true;
  }else{
    manuRow.style.display='none';
    modelOnlyRow.style.display='';
    renderModelSelect(DATA.products, modelSelectSolo);
  }

// Deep-link handling: open modal and preselect if match
  const pick = findProductFromDeepLink();
  if(pick){
    openModal();
    if(pick.__manuOnly){
      const manuName = manufacturers.find(m => norm(m) === norm(pick.manufacturer)) || pick.manufacturer;
      selectedManufacturer = manuName || '';
      if(manufacturers.length>0){
        manuSelect.value = selectedManufacturer;
        manuSelect.dispatchEvent(new Event('change'));
      }
      buyButtons.style.display = 'none';
    }else{
      const manuName = pick.manufacturer || '';
      if(manufacturers.length>0){
        manuSelect.value = manuName;
        manuSelect.dispatchEvent(new Event('change'));
        const idx = filteredProducts.findIndex(pr => norm(pr.title) === norm(pick.title));
        const idx2 = idx >= 0 ? idx : filteredProducts.findIndex(pr => norm(pr.title).includes(norm(pick.title)));
        if(idx2 >= 0){
          modelSelect.value = String(idx2);
          showButtonsForProduct(filteredProducts[idx2]);
        }
      }else{
        const i = DATA.products.findIndex(pr => norm(pr.title) === norm(pick.title));
        if(i>=0){
          modelSelectSolo.value = String(i);
          showButtonsForProduct(DATA.products[i]);
        }
      }
    }
  }

// reveal-on-scroll
  const io=new IntersectionObserver(es=>es.forEach(e=>{ if(e.isIntersecting){ e.target.classList.add('in'); io.unobserve(e.target);} }),{threshold:.12});
  document.querySelectorAll('.reveal').forEach(el=>io.observe(el));
})();
</script>
</body>
</html>

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