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<header><div class="nav">
  <div class="brand"><div class="logo"><b>Android</b>Challenge.com</div><div class="sub">An eCorp Venture</div></div>
  <nav class="nlinks"><a href="https://contrib.com">Join</a><a href="https://venturebuilder.com">Build</a><a class="inv" href="https://eshares.com/interest">Invest</a></nav>
  <div class="xp">⭐ <b id="xp">0</b> XP</div>
</div></header>

  <section class="hero">
    <div class="hero-bg"><img src="https://images.pexels.com/photos/6901037/pexels-photo-6901037.jpeg?auto=compress&amp;cs=tinysrgb&amp;fit=crop&amp;h=627&amp;w=1200" alt="" referrerpolicy="no-referrer"><span class="veil"></span></div>
    <div class="wrap grid">
      <div>
        <span class="pill">🏆 Power &amp; Wildcards</span>
        <h1>Take the challenge — learn it, prove it, win it.</h1>
        <p class="lede">Join the Androidchallenge community. Unleash the unexpected through interactive challenges, leaderboards, and real rewards.</p>
        <div class="actions"><a href="#play" class="btn btn-primary">Start the challenge →</a>
          <a href="#how" class="btn btn-ghost">How it works</a></div>
      </div>
      <div class="hero-card"><img class="hero-img" src="https://images.pexels.com/photos/6901037/pexels-photo-6901037.jpeg?auto=compress&amp;cs=tinysrgb&amp;fit=crop&amp;h=627&amp;w=1200" alt="AndroidChallenge.com — Power &amp; Wildcards" referrerpolicy="no-referrer" onerror="this.style.display='none'">
        <h4>Your path to the top</h4>
        <div class="rung"><span>📚</span><b>Level 1 · Facts &amp; Stats</b><i>+10</i></div>
        <div class="rung"><span>🏆</span><b>Level 2 · Compete</b><i>+25</i></div>
        <div class="rung"><span>🌍</span><b>Level 3 · Impact</b><i>+50</i></div>
      </div>
    </div>
  </section>

  <section id="play"><div class="wrap">
    <span class="eyebrow">The Challenge · Phase 1</span>
    <h2 class="h2">Facts &amp; Stats</h2>
    <p class="lead2">Answer to earn XP. Hit 30 XP to unlock Level 2.</p>
    <div class="quiz" id="quiz"></div>
  </div></section>

  <section id="board"><div class="wrap">
    <span class="eyebrow">Standings</span>
    <h2 class="h2">AndroidChallenge leaderboard</h2>
    <div class="lb" id="lb"></div>
  </div></section>

  <section id="sponsors"><div class="wrap">
    <span class="eyebrow">Sponsors</span><h2 class="h2">Powered by sponsors</h2>
    <p class="lead2">Brands back Power &amp; Wildcards to reach an engaged, on-topic audience. Prizes, placements, measured attention.</p>
    <div class="sptiers"><div class="sp"><div class="spe">🎟️</div><b>Prize sponsor</b><small>Fund a leaderboard prize pool</small></div>
       <div class="sp feat"><div class="spe">🏆</div><b>Zone sponsor</b><small>Own a whole topic zone</small></div>
       <div class="sp"><div class="spe">🌐</div><b>Network partner</b><small>Presence across the network</small></div></div>
    <div class="spcta"><div><h3>Become a sponsor</h3><p>Tell us your category — we'll match you to the zones where your audience already plays.</p></div>
      <a class="btn btn-primary" href="#join">Talk to the network →</a></div>
  </div></section>

  <section id="join"><div class="wrap"><div class="capture">
    <h2>Get on the AndroidChallenge board</h2>
    <p>New challenges and weekly leaderboard resets — to your inbox.</p>
    <form class="form" onsubmit="return subscribe(event)">
      <input type="email" id="email" placeholder="you@email.com" required>
      <button class="btn btn-primary" type="submit">Join free →</button>
    </form>
    <div class="okmsg" id="ok">✓ You're in.</div>
  </div></div></section>

  <section id="contact"><div class="wrap">
    <span class="eyebrow">Get in touch</span>
    <h2 class="h2">Partner, sponsor, or ask us anything</h2>
    <p class="lead2">Sponsors, partners and players — send a note and the AndroidChallenge team will get back to you.</p>
    <form class="cform" onsubmit="return sendContact(event)">
      <div class="cf-row"><input type="text" id="c_name" placeholder="Your name" required>
        <input type="email" id="c_email" placeholder="you@email.com" required></div>
      <textarea id="c_msg" rows="4" placeholder="How can we help? (sponsorship, partnership, question…)" required></textarea>
      <button class="btn btn-primary" type="submit">Send message →</button>
      <span class="okmsg" id="cok">✓ Thanks — we'll be in touch.</span>
    </form>
  </div></section>

  <script>
  const QUIZ=[{"q":"Which is a prime number?","a":["9","15","17","21"],"c":2},{"q":"How many minutes are in an hour?","a":["50","60","100","75"],"c":1},{"q":"Which is the largest ocean?","a":["Atlantic","Indian","Pacific","Arctic"],"c":2}], LB=[{"n":"nova_k","s":480},{"n":"pixel_pat","s":455},{"n":"q_runner","s":430},{"n":"zeroCool","s":390},{"n":"mira","s":365},{"n":"byteWolf","s":340},{"n":"sundeep","s":315},{"n":"lola","s":295}]; let xp=0,qi=0,answered=false;
  function sendContact(e){e.preventDefault();
    fetch('/api/contact',{method:'POST',headers:{'content-type':'application/json'},body:JSON.stringify({
      name:document.getElementById('c_name').value,email:document.getElementById('c_email').value,message:document.getElementById('c_msg').value})})
    .then(r=>r.json()).then(j=>{if(j.ok){document.getElementById('cok').style.display='inline';e.target.reset();}});return false;}
  function rq(){answered=false;const q=QUIZ[qi];document.getElementById('quiz').innerHTML=
    '<div class="qh"><b>'+q.q+'</b><span>Q'+(qi+1)+' / '+QUIZ.length+'</span></div>'+
    '<div class="opts">'+q.a.map((o,i)=>'<button class="opt" onclick="ans('+i+',this)">'+o+'</button>').join('')+'</div>'+
    '<div class="qf" id="qf"></div>';}
  function ans(i,btn){if(answered)return;answered=true;const q=QUIZ[qi];
    document.querySelectorAll('.opt').forEach((b,j)=>{b.disabled=true;if(j===q.c)b.classList.add('correct');});
    if(i===q.c){xp+=10;btn.classList.add('correct');}else{btn.classList.add('wrong');}
    document.getElementById('xp').textContent=xp;
    document.getElementById('qf').innerHTML=(i===q.c?'✓ +10 XP':'✗ Answer highlighted')+
      (qi<QUIZ.length-1?' <button class="btn btn-ghost" onclick="qi++,rq()">Next →</button>':
       ' <b>Level 1 complete — '+xp+' XP!</b>');renderLB();}
  function renderLB(){const rows=LB.concat([{n:'You',s:xp}]).sort((a,b)=>b.s-a.s).slice(0,8);
    document.getElementById('lb').innerHTML=rows.map((r,i)=>'<div class="row'+(r.n==='You'?' you':'')+'"><span>'+(i+1)+
      '</span><span>'+r.n+'</span><b>'+r.s+' XP</b></div>').join('');}
  function subscribe(e){e.preventDefault();fetch('/api/subscribe',{method:'POST',headers:{'content-type':'application/json'},
    body:JSON.stringify({email:document.getElementById('email').value})}).then(()=>{document.getElementById('ok').style.display='block';});return false;}
  rq();renderLB();
  </script>
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      <p>Part of the iChallenge network — learn it, prove it, win it, across 1,875 challenge sites.</p></div>
    <div class="fc"><h4>Play</h4><a href="#play">Start the challenge</a><a href="#board">Leaderboard</a><a href="https://venturebuilder.com">Build a challenge</a><a href="https://eshares.com/interest">Invest in the network</a></div>
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