/* ============================================================
   ATTUNE RX — Learn (article pages)
   A calm reading layout in the brand palette. No animation libraries:
   these pages are for reading and for search, so they stay light and fast.
   ============================================================ */
:root{
  --green-900:#062d2c; --green-700:#0d474a; --green-500:#056161;
  --cream:#f4eee6; --paper:#faf6f0; --amber:#975027; --amber-600:#7f421f;
  --lake:#d7e3e1; --sage:#dcd9c0; --gold:#f2c76b;
  --ink:#062d2c; --ink-soft:#35504e; --line:rgba(6,45,44,.14);
  --font-head:"Figtree","Helvetica Neue",Arial,sans-serif;
  --font-body:"Work Sans","Helvetica Neue",Arial,sans-serif;
  --gutter:clamp(16px,5vw,48px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--green-500);text-underline-offset:3px}
a:hover{color:var(--amber)}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:10;background:var(--cream);padding:8px 14px;border-radius:999px}

/* ---------- header ---------- */
.lh{background:var(--green-900);color:var(--cream);position:sticky;top:0;z-index:5}
.lh__in{max-width:1180px;margin:0 auto;padding:0 var(--gutter);height:68px;display:flex;align-items:center;gap:24px}
.lh__logo{display:flex;align-items:center;gap:10px;color:var(--cream);text-decoration:none;font-family:var(--font-head);font-weight:500;letter-spacing:.14em;font-size:17px}
.lh__logo svg{width:28px;height:28px;fill:none;stroke:var(--cream);stroke-width:9}
.lh__logo sup{font-size:.55em;letter-spacing:.06em;margin-left:1px}
.lh__nav{display:flex;gap:22px;margin-left:auto;align-items:center}
.lh__nav a{color:rgba(244,238,230,.78);text-decoration:none;font-family:var(--font-head);font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.lh__nav a:hover,.lh__nav a[aria-current]{color:var(--cream)}
.btn{display:inline-flex;align-items:center;gap:10px;border-radius:999px;padding:12px 22px;font-family:var(--font-head);font-weight:500;font-size:14px;letter-spacing:.06em;text-decoration:none;transition:background .25s,transform .25s}
.btn--amber{background:var(--amber);color:var(--cream)}
.btn--amber:hover{background:var(--amber-600);color:var(--cream);transform:translateY(-1px)}
.lh .btn{padding:10px 18px;font-size:12.5px;text-transform:uppercase;letter-spacing:.1em}

/* ---------- article ---------- */
.wrap{max-width:760px;margin:0 auto;padding:0 var(--gutter)}
.crumbs{font-family:var(--font-head);font-size:13px;letter-spacing:.04em;color:var(--ink-soft);margin:36px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"/";margin-right:6px;opacity:.5}
.crumbs a{color:inherit;text-decoration:none}
.crumbs a:hover{color:var(--amber)}
.eyebrow{font-family:var(--font-head);font-weight:500;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--amber);margin:28px 0 14px}
h1{font-family:var(--font-head);font-weight:400;font-size:clamp(34px,5.4vw,54px);line-height:1.06;letter-spacing:-.025em;margin:0 0 18px}
.dek{font-size:clamp(19px,2.1vw,22px);line-height:1.55;color:var(--ink-soft);margin:0 0 28px}
.byline{display:flex;align-items:center;gap:14px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:34px}
.byline img{width:52px;height:52px;border-radius:50%;flex:none}
.byline p{margin:0;font-size:14.5px;line-height:1.5;color:var(--ink-soft)}
.byline strong{color:var(--ink);font-weight:500}
.takeaways{background:var(--lake);border-radius:22px;padding:24px 28px;margin:0 0 40px}
.takeaways h2{font-size:14px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;margin:0 0 10px;color:var(--green-700)}
.takeaways ul{margin:0;padding-left:20px}
.takeaways li{margin:6px 0;font-size:17px}
article h2{font-family:var(--font-head);font-weight:400;font-size:clamp(26px,3.2vw,32px);line-height:1.2;letter-spacing:-.015em;margin:48px 0 14px}
article h3{font-family:var(--font-head);font-weight:500;font-size:20px;margin:30px 0 8px}
article p,article li{color:#173b39}
article ul,article ol{padding-left:22px}
article li{margin:8px 0}
sup.ref a{font-size:.72em;text-decoration:none;font-family:var(--font-head);font-weight:500;padding:0 1px}
.note{border-left:3px solid var(--amber);padding:6px 0 6px 18px;margin:26px 0;color:var(--ink-soft);font-size:17px}

/* product callout */
.callout{display:grid;grid-template-columns:170px 1fr;gap:26px;align-items:center;background:var(--green-900);color:var(--cream);border-radius:26px;padding:26px 30px;margin:44px 0}
.callout img{width:170px}
.callout .eyebrow{color:var(--gold);margin:0 0 8px}
.callout h2{color:var(--cream);margin:0 0 8px;font-size:26px}
.callout p{color:rgba(244,238,230,.84);margin:0 0 16px;font-size:16px;line-height:1.6}
.callout .price{font-family:var(--font-head);font-size:15px;letter-spacing:.04em;color:var(--cream);margin:0 0 16px}
.callout .price b{font-size:26px;font-weight:400;margin-right:8px}

/* FAQ */
.faq{margin:52px 0 10px}
.faq details{border-top:1px solid var(--line);padding:4px 0}
.faq details:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;font-family:var(--font-head);font-size:19px;padding:16px 36px 16px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:12px;font-size:24px;color:var(--amber);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:0 0 18px;font-size:17px}

/* references + disclaimer */
.refs{margin:48px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.refs h2{font-size:14px;font-family:var(--font-head);font-weight:500;letter-spacing:.18em;text-transform:uppercase;margin:0 0 12px}
.refs ol{padding-left:22px;margin:0}
.refs li{font-size:14.5px;line-height:1.55;margin:8px 0;color:var(--ink-soft)}
.disclaimer{font-size:13.5px;line-height:1.6;color:var(--ink-soft);background:var(--cream);border-radius:16px;padding:16px 20px;margin:32px 0 0}

/* related + hub cards */
.related{max-width:1180px;margin:64px auto 0;padding:0 var(--gutter)}
.related h2{font-family:var(--font-head);font-weight:400;font-size:26px;margin:0 0 18px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{display:flex;flex-direction:column;background:var(--cream);border-radius:22px;padding:24px 26px;text-decoration:none;color:var(--ink);transition:transform .25s,box-shadow .25s;border:1px solid var(--line)}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(6,45,44,.12);color:var(--ink)}
.card .eyebrow{margin:0 0 10px}
.card h3{font-family:var(--font-head);font-weight:400;font-size:22px;line-height:1.25;margin:0 0 10px}
.card p{margin:0 0 16px;font-size:16px;line-height:1.55;color:var(--ink-soft)}
.card span.more{margin-top:auto;font-family:var(--font-head);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber)}
.hub-hero{padding-bottom:10px}

/* ---------- footer ---------- */
.lf{background:var(--green-900);color:rgba(244,238,230,.78);margin-top:80px;padding:44px 0 36px;font-size:14px}
.lf__in{max-width:1180px;margin:0 auto;padding:0 var(--gutter);display:flex;flex-wrap:wrap;gap:18px 40px;align-items:flex-start;justify-content:space-between}
.lf a{color:var(--cream)}
.lf p{margin:0;max-width:640px;line-height:1.6}
.lf nav{display:flex;gap:20px;flex-wrap:wrap}

@media(max-width:760px){
  body{font-size:17px}
  .lh__nav a.lh__hide{display:none}
  .lh__nav{gap:14px}
  .callout{grid-template-columns:1fr;text-align:left;padding:24px}
  .callout img{width:140px}
  .takeaways{padding:20px 22px}
}
@media(max-width:420px){
  .lh__logo span{display:none}
  .lh .btn{padding:9px 14px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}