/* =========================================================
   PRIMAGEVITY — Learn (education lane) · article + hub styles
   Extends styles.css tokens. Do NOT redefine tokens here.
   ========================================================= */

/* breadcrumb */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:.55em;font:600 11.5px/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:20px}
.crumbs a{color:var(--ink-soft);transition:color .2s}
.crumbs a:hover{color:var(--gold-deep)}
.crumbs .sep{color:var(--ink-faint)}

/* article meta row (under the title) */
.ameta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:24px;font:500 12.5px/1 var(--sans);letter-spacing:.03em;color:var(--ink-soft)}
.ameta .dot{width:4px;height:4px;border-radius:50%;background:var(--gold);flex:none}

/* long-form prose — narrow measure, stronger ink than UI body for readability */
.article{max-width:720px;margin:0 auto;--tx:rgba(22,20,15,.84)}
.article > p{font-size:1.075rem;line-height:1.78;color:var(--tx)}
.article > p + p{margin-top:1.15em}
.article h2{font-family:var(--display);font-weight:500;font-size:clamp(1.55rem,3vw,2.15rem);letter-spacing:-.016em;line-height:1.1;color:var(--ink);margin:2.1em 0 .55em;text-wrap:balance}
.article h2:first-child{margin-top:0}
.article h3{font-family:var(--display);font-weight:500;font-size:clamp(1.2rem,2vw,1.45rem);letter-spacing:-.01em;line-height:1.15;color:var(--ink);margin:1.7em 0 .4em}
.article h2 .gold,.article h3 .gold{color:var(--gold-deep)}
.article ul,.article ol{margin:1em 0;padding-left:1.3em;color:var(--tx)}
.article li{margin-top:.55em;line-height:1.7}
.article li::marker{color:var(--gold-deep)}
.article a{color:var(--gold-deep);border-bottom:1px solid var(--line);transition:border-color .2s}
.article a:hover{border-color:var(--gold-deep)}
.article strong{color:var(--ink);font-weight:600}
.article em{font-style:italic}

/* callouts — key takeaways / clinician note */
.callout{background:var(--paper-2);border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:var(--r);padding:clamp(20px,3vw,28px);margin:2em 0}
.callout .lbl{display:block;font:600 11px/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--gold-deep);margin-bottom:14px}
.callout h3{margin:0 0 10px}
.callout p{color:var(--tx,var(--ink-soft));line-height:1.65}
.callout ul{margin:.4em 0 0;padding-left:1.2em;color:var(--ink-soft)}
.callout li{margin-top:.5em}
.callout.note{border-left-color:var(--ink)}

/* inline CTA band inside an article */
.inline-cta{margin:2.4em 0;padding:clamp(22px,3vw,30px);background:radial-gradient(120% 130% at 50% 0%,var(--gold-tint),var(--paper) 70%);border:1px solid var(--line);border-radius:var(--r);text-align:center}
.inline-cta p{color:var(--ink);max-width:48ch;margin:0 auto 16px;font-size:1.02rem}

/* sources + review status */
.sources{margin-top:2.6em;border-top:1px solid var(--line);padding-top:24px}
.sources h2{font-size:1.15rem;margin:0 0 12px}
.sources ol{padding-left:1.25em;margin:0}
.sources li{font-size:13.5px;line-height:1.55;color:var(--ink-soft);margin-top:.55em}
.sources a{color:var(--gold-deep);border-bottom:1px solid var(--line);word-break:break-word}

/* related (reuses .cards/.card from styles.css; this just spaces the heading) */
.related{margin-top:2.8em}
.related h2{font-size:1.3rem;margin-bottom:18px}

/* hub: make editorial index rows clickable cards */
a.gitem{color:inherit;text-decoration:none}
a.gitem:hover h3{color:var(--gold-deep)}
.hub-note{display:flex;gap:12px;align-items:flex-start;max-width:64ch;margin-top:18px;color:var(--ink-soft);font-size:14.5px}
.hub-note .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);margin-top:8px;flex:none}
.soon{color:var(--ink-faint);font:500 12px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase}

@media(max-width:620px){
  .article > p{font-size:1.03rem}
}

/* ---- archetype tag (in the article meta row + hub) ---- */
.atag{display:inline-flex;align-items:center;gap:.45em;font:600 10.5px/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);background:var(--paper-2);border:1px solid var(--line);border-radius:var(--pill);padding:6px 11px}
.atag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold)}

/* ---- navigation motion: reading progress · on-this-page TOC · back-to-top ---- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:100%;background:var(--gold);transform:scaleX(0);transform-origin:0 50%;z-index:300;will-change:transform}

.toc{position:fixed;top:118px;right:max(24px,calc((100vw - var(--container))/2 - 28px));width:208px;z-index:50;font:500 13px/1.45 var(--sans)}
.toc-h{font:600 10.5px/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--gold-deep);margin-bottom:14px}
.toc a{display:block;color:var(--ink-soft);padding:6px 0 6px 14px;border-left:1px solid var(--line);transition:color .2s var(--ease),border-color .2s var(--ease)}
.toc a:hover{color:var(--ink)}
.toc a.active{color:var(--ink);border-left-color:var(--gold-deep)}
@media(max-width:1199px){ .toc{display:none} }

.article h2{scroll-margin-top:92px}

.backtop{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;background:var(--ink);color:var(--champagne);display:flex;align-items:center;justify-content:center;z-index:120;border:none;cursor:pointer;opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .3s var(--ease),transform .3s var(--ease),background .2s}
.backtop.show{opacity:1;transform:none;pointer-events:auto}
.backtop:hover{background:#2A261D}
.backtop svg{width:18px;height:18px}

@media(prefers-reduced-motion:reduce){
  .backtop{transition:opacity .01ms}
}

/* ---- Accordion cluster toggles (learn hub) ---- */

/* Button reset + column layout (lede above, expand strip below) */
.acc .lede{margin-bottom:0}
.acc-hd{
  display:flex;flex-direction:column;align-items:stretch;
  width:100%;background:none;border:none;padding:0;cursor:pointer;text-align:left;
  -webkit-tap-highlight-color:transparent;
}
.acc-hd:focus-visible{outline:2px solid var(--gold-deep);outline-offset:6px;border-radius:4px}
.acc-hd .h2{transition:color .3s var(--ease)}
.acc-hd:hover .h2{color:var(--gold-deep)}

/* Expand CTA strip — the "obvious button" */
.acc-expand{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:clamp(24px,3.5vw,40px);
  padding:14px 20px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r);
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.acc-hd:hover .acc-expand{background:var(--gold-tint);border-color:var(--gold)}
.acc-hd:active .acc-expand{background:var(--gold-tint);border-color:var(--gold-deep)}
.acc-count{
  flex:1;
  font:600 11.5px/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;
  color:var(--gold-deep);
}
.acc-cta-lbl{
  font:500 13px/1 var(--sans);letter-spacing:.03em;
  color:var(--ink-soft);
  transition:color .25s var(--ease);
  margin-right:8px;
}
.acc-hd:hover .acc-cta-lbl{color:var(--ink)}

/* Spring chevron — elastic overshoot on rotation */
.acc-chev{
  width:18px;height:18px;flex-shrink:0;
  color:var(--gold-deep);
  transition:transform .55s cubic-bezier(.34,1.56,.64,1);
}
.acc-hd[aria-expanded="true"] .acc-chev{transform:rotate(180deg)}

/* Accordion body — height + opacity dual-transition */
.js .acc-body{
  display:grid;grid-template-rows:0fr;
  opacity:0;
  transition:
    grid-template-rows .48s var(--ease),
    opacity .32s var(--ease) .06s;
}
.js .acc-body.open{grid-template-rows:1fr;opacity:1}
.acc-inner{overflow:hidden}
.acc-body.open .acc-inner{padding-top:clamp(28px,4.5vw,52px)}

/* hub-note inside accordion */
.acc-inner .hub-note{margin-top:20px}

/* Staggered item entrance (overdrive) */
@keyframes acc-item-enter{
  from{opacity:0;transform:translateY(16px)}
  to  {opacity:1;transform:none}
}
.js .acc-body.open.staggered .gitem{
  animation:acc-item-enter .58s var(--ease) both;
  animation-delay:calc(var(--i,0) * 52ms);
}

/* No-JS: everything visible */
.no-js .acc-body{display:block !important;opacity:1 !important}

@media(prefers-reduced-motion:reduce){
  .js .acc-body{transition:none;opacity:1}
  .acc-chev{transition:none}
  .js .acc-body.open.staggered .gitem{animation:none}
}