async function runHealthCheck(){
  const [conf] = await Promise.all([getJSON('./data/karma-config.json')]);
  const W = conf.weights;
  const gbp = document.getElementById('f_gbp').value==='yes' ? 1 : 0;
  const cwvSel = document.getElementById('f_cwv').value;
  const stars = Math.max(1, Math.min(5, parseFloat(document.getElementById('f_stars').value||"0")));
  const starsNorm = (stars-1)/(5-1); // 0..1
  const reviews = Math.max(0, parseInt(document.getElementById('f_reviews').value||"0",10));
  const reviewsNorm = Math.min(1, reviews/25); // cap at 25 in 90 days
  const last = parseInt(document.getElementById('f_update').value,10);
  const velocity = last<=30 ? 1 : (last<=90 ? 0.6 : 0.2);
  const schema = document.getElementById('f_schema').value==='yes' ? 1 : 0;

  const profile = (gbp*0.5 + schema*0.5);
  const reviewsSignal = (starsNorm*0.6 + reviewsNorm*0.4);
  const verification = gbp;

  const score = (profile*W.profile + reviewsSignal*W.reviews + velocity*W.velocity + verification*W.verification);

  document.getElementById('hc_score').textContent = `Karma ${(score*100).toFixed(0)}`;
  const snapshot = {
    date: new Date().toISOString(),
    inputs: { gbp: gbp===1, cwv: cwvSel, stars, reviews, lastDays: last, schema: schema===1 },
    mapped: { profile, reviewsSignal, velocity, verification },
    score: score
  };
  document.getElementById('hc_json').textContent = JSON.stringify(snapshot,null,2);
}

// Resources
async function renderResources(){
  const tbl = document.querySelector('#resources_table tbody');
  if(!tbl) return;
  const data = await getJSON('./data/resources.json');
  tbl.innerHTML = data.items.map(x=>`
    <tr><td>${x.title}</td><td>${x.type}</td><td><a href="${x.url}">Open</a></td><td>${(x.tags||[]).join(', ')}</td></tr>
  `).join('');
}

// v04: Stripe Checkout wiring
async function bindCheckout(){
  try{
    const map = await getJSON('./data/checkout.json');
    document.querySelectorAll('[data-checkout]').forEach(btn=>{
      btn.addEventListener('click', ()=>{
        const key = btn.getAttribute('data-checkout');
        const prod = map.products && map.products[key];
        if(prod && prod.checkout_url && !prod.checkout_url.includes('REPLACE_ME')){
          window.location.href = prod.checkout_url;
        }else{
          alert('Checkout not configured yet. Replace the checkout_url in /data/checkout.json for \"'+key+'\".');