:root{
  --navy:#1F2B5E;
  --navy-deep:#141c40;
  --ink:#1b1f33;
  --muted:#5b6079;
  --line:rgba(31,43,94,.14);
  --cream:#FBF8F2;
  --cream-2:#F3EEE3;
  --white:#fff;
  --gold:#F2B233;
  --gold-ink:#1b1f33;
  --plum:#3b2a7a;

  --font-display:'Libre Baskerville',Georgia,serif;
  --font-body:'Montserrat','Helvetica Neue',Arial,sans-serif;

  --text-xs:.8125rem;
  --text-sm:.9rem;
  --text-base:1rem;
  --text-lg:1.2rem;
  --text-xl:clamp(1.6rem,1.2rem + 1.6vw,2.25rem);
  --text-hero:clamp(2.4rem,1.6rem + 3.6vw,4.4rem);

  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;

  --wrap:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--font-body);font-size:var(--text-base);line-height:1.6;color:var(--ink);background:var(--cream)}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy)}
h1,h2,h3{margin:0;line-height:1.15;letter-spacing:-.01em}
h2{font-family:var(--font-display);font-weight:700;font-size:var(--text-xl)}
h3{font-size:var(--text-lg);font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:min(var(--wrap),100% - 2.5rem);margin-inline:auto}
.skip{position:absolute;left:-999px;top:0;background:var(--gold);padding:.5rem 1rem;z-index:100}
.skip:focus{left:1rem}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px}

.eyebrow{font-size:var(--text-xs);font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--plum);margin-bottom:.9rem}
.eyebrow.light{color:var(--gold)}
.sub{color:var(--muted);max-width:56ch}
.h-sm{font-family:var(--font-body);font-size:var(--text-sm);font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:1.5rem}
.text-link{font-weight:600;text-decoration:none;border-bottom:2px solid var(--gold);padding-bottom:2px}
.text-link.light{color:#fff}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font:inherit;font-weight:700;font-size:var(--text-sm);padding:.8rem 1.4rem;border-radius:999px;text-decoration:none;border:0;cursor:pointer;min-height:44px}
.btn-gold{background:var(--gold);color:var(--gold-ink)}
.btn-gold:hover{background:#e2a526}
.btn-sm{padding:.55rem 1.1rem;min-height:40px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:var(--navy);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;gap:1.5rem;height:64px}
.brand{display:flex;align-items:center;gap:.6rem;color:#fff;text-decoration:none}
.brand img{width:40px;height:auto}
.wordmark{height:30px;width:auto}
.nav{display:flex;gap:1.6rem;margin-left:auto}
.nav a{color:rgba(255,255,255,.85);text-decoration:none;font-size:var(--text-sm);font-weight:600}
.nav a:hover{color:#fff}
.menu-btn{display:none;margin-left:auto;background:none;border:0;width:44px;height:44px;flex-direction:column;justify-content:center;gap:5px;cursor:pointer;padding:10px}
.menu-btn span{display:block;height:2px;background:#fff;border-radius:2px}
.mobile-nav{display:none;flex-direction:column;gap:.25rem;padding:.5rem 1.25rem 1.25rem;background:var(--navy-deep)}
.mobile-nav a{color:#fff;text-decoration:none;padding:.75rem 0;font-weight:600;border-bottom:1px solid rgba(255,255,255,.08)}
.mobile-nav .btn{margin-top:.75rem;border-bottom:0}
.mobile-nav.is-open{display:flex}
@media (max-width:900px){
  .nav,.header-inner>.btn{display:none}
  .menu-btn{display:flex}
}

/* Hero */
.hero{background:var(--white);padding-block:clamp(2.5rem,6vw,5rem) 0;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.hero h1{font-family:var(--font-display);font-weight:700;font-size:var(--text-hero);color:var(--navy);margin-bottom:1.25rem}
.hero h1 em{font-style:italic;color:var(--plum)}
.lede{font-size:var(--text-lg);line-height:1.55;color:var(--muted);max-width:52ch;margin-bottom:1.75rem}
.fineprint{font-size:var(--text-xs);color:var(--muted);margin-top:1.25rem}
.hero-art{margin:0;position:relative}
.hero-art::before{content:"";position:absolute;inset:-4% -6% -6% -6%;background:var(--cream-2);border-radius:var(--radius-lg);z-index:0}
.hero-art img{position:relative;z-index:1;mix-blend-mode:multiply}
.trust{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 2rem;padding:1.5rem 0;margin-top:clamp(1.5rem,4vw,3rem);border-top:1px solid var(--line);font-family:var(--font-display);font-size:var(--text-lg);color:var(--navy)}
.trust-label{font-family:var(--font-body);font-size:var(--text-xs);font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}

/* Store badges + QR */
.store-row{display:flex;flex-wrap:wrap;align-items:center;gap:.9rem 1rem}
.store-badge{display:inline-flex;align-items:center;gap:.6rem;background:#111;color:#fff;text-decoration:none;padding:.5rem 1rem .5rem .8rem;border-radius:var(--radius-sm);min-height:50px;line-height:1.05;border:1px solid #333}
.store-badge:hover{background:#000}
.store-badge svg{width:24px;height:24px;flex:none}
.store-badge span{display:flex;flex-direction:column;font-weight:600;font-size:1.05rem}
.store-badge small{font-size:.62rem;font-weight:500;letter-spacing:.02em;opacity:.85}
.qr{display:flex;align-items:center;gap:.75rem;margin-left:.25rem}
.qr-box{width:84px;height:84px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:6px}
.qr-box svg{width:100%;height:100%;display:block}
.qr p{margin:0;font-size:var(--text-xs);color:var(--muted);max-width:7rem;line-height:1.3}
.qr-lg .qr-box{width:150px;height:150px;padding:10px}
.qr-lg p{max-width:10rem}

/* Section heads */
.section-head{max-width:62ch;margin-bottom:clamp(2rem,4vw,3rem)}
.section-head.split{max-width:none;display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;flex-wrap:wrap}

/* How */
.how{padding-block:clamp(3.5rem,8vw,6.5rem)}
.steps{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.step-photo{margin:0;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/5}
.step-photo img{width:100%;height:100%;object-fit:cover}
.step-list{display:flex;flex-direction:column}
.step-list li{display:grid;grid-template-columns:3.5rem 1fr;gap:1rem;padding:1.6rem 0;border-top:1px solid var(--line)}
.step-list li:last-child{border-bottom:1px solid var(--line)}
.step-num{font-family:var(--font-display);font-size:1.6rem;color:var(--gold);line-height:1.2}
.step-list h3{margin-bottom:.35rem;color:var(--navy)}
.step-list p{margin:0;color:var(--muted)}

/* Exercises */
.exercises{background:var(--white);padding-block:clamp(3.5rem,8vw,6.5rem)}
.filters{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{font:inherit;font-size:var(--text-xs);font-weight:600;padding:.5rem .95rem;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--navy);cursor:pointer;min-height:40px}
.chip:hover{background:var(--cream)}
.chip.is-active{background:var(--navy);color:#fff;border-color:var(--navy)}
.ex-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.ex-grid li{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius-md);padding:1.4rem 1.4rem 1.2rem;display:flex;flex-direction:column;gap:.3rem;transition:transform .2s ease,box-shadow .2s ease}
.ex-grid li:hover{transform:translateY(-2px);box-shadow:0 10px 30px -18px rgba(31,43,94,.45)}
.ex-grid li.featured{grid-column:span 2;background:var(--navy);color:#fff;border-color:var(--navy)}
.ex-grid li.featured .cat{color:var(--gold)}
.ex-grid li.featured h3{color:#fff;font-family:var(--font-display);font-size:1.6rem}
.ex-grid li.featured p{color:rgba(255,255,255,.85)}
.ex-grid li.featured .tag{color:#fff}
.ex-grid li.wide{grid-column:span 2}
.ex-grid li.is-hidden{display:none}
.cat{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--plum)}
.ex-grid h3{font-size:1.05rem;color:var(--navy);margin-top:.2rem}
.tag{font-family:var(--font-display);font-style:italic;font-size:var(--text-sm);color:var(--ink);margin:0}
.ex-grid p:last-child{font-size:var(--text-sm);color:var(--muted);margin:0}
@media (max-width:1000px){.ex-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:720px){.ex-grid{grid-template-columns:1fr 1fr}.ex-grid li.featured,.ex-grid li.wide{grid-column:span 2}}
@media (max-width:480px){.ex-grid{grid-template-columns:1fr}.ex-grid li.featured,.ex-grid li.wide{grid-column:span 1}}

/* Pedigree */
.pedigree{background:var(--navy);color:#fff;padding-block:clamp(3.5rem,8vw,6.5rem)}
.pedigree h2{color:#fff}
.pedigree-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,6vw,6rem);align-items:center}
.pedigree-copy p{color:rgba(255,255,255,.85)}
.pull{margin:0;padding:2rem 0 2rem 2rem;border-left:3px solid var(--gold)}
.pull p{font-family:var(--font-display);font-size:clamp(1.25rem,1rem + 1vw,1.7rem);line-height:1.45;color:#fff;margin-bottom:1.25rem}
.pull footer{font-weight:700;font-size:var(--text-sm)}
.pull footer span{display:block;font-weight:500;color:rgba(255,255,255,.7)}

/* Voices */
.voices{padding-block:clamp(3.5rem,8vw,6.5rem)}
.voices-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,5rem)}
.quote{margin:0 0 1.75rem;padding:0 0 1.75rem;border-bottom:1px solid var(--line)}
.quote blockquote{margin:0 0 .75rem;font-family:var(--font-display);font-size:1.05rem;line-height:1.6;color:var(--ink)}
.quote figcaption{font-size:var(--text-sm);font-weight:700;color:var(--navy)}
.quote figcaption span{display:block;font-weight:500;color:var(--muted)}

/* Research */
.research{background:var(--white);padding-block:clamp(3.5rem,8vw,6.5rem)}
.research-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,5vw,5rem);align-items:start}
.research-intro{position:sticky;top:5.5rem}
.research-intro p{color:var(--muted)}
.research-lists h3{font-size:var(--text-sm);letter-spacing:.08em;text-transform:uppercase;color:var(--plum);margin:0 0 .75rem}
.research-lists ul{margin-bottom:2rem}
.research-lists li{padding:.75rem 0;border-top:1px solid var(--line)}
.research-lists li:last-child{border-bottom:1px solid var(--line)}
.research-lists a{text-decoration:none;font-weight:500;display:flex;gap:.6rem;align-items:flex-start}
.research-lists a::before{content:"PDF";flex:none;font-size:.62rem;font-weight:700;letter-spacing:.06em;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:.15rem .35rem;margin-top:.25rem}
.research-lists a[href*="sciencedirect"]::before{content:"WEB"}
.research-lists a:hover{color:var(--plum)}

/* FAQ */
.faq{padding-block:clamp(3.5rem,8vw,6.5rem)}
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,5vw,5rem);align-items:start}
.faq-list details{border-top:1px solid var(--line)}
.faq-list details:last-child{border-bottom:1px solid var(--line)}
.faq-list summary{cursor:pointer;list-style:none;font-weight:700;padding:1.1rem 2.5rem 1.1rem 0;position:relative;color:var(--navy)}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:.25rem;top:50%;transform:translateY(-50%);font-size:1.5rem;font-weight:400;color:var(--plum);line-height:1}
.faq-list details[open] summary::after{content:"–"}
.faq-list details p{margin:0 0 1.25rem;color:var(--muted);max-width:60ch}

/* CTA */
.cta{background:var(--gold);padding-block:clamp(3rem,7vw,5.5rem)}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:3rem;flex-wrap:wrap}
.cta h2{color:var(--navy);max-width:20ch;margin-bottom:.5rem}
.cta p{color:var(--ink);margin-bottom:1.5rem}
.cta .qr-box{border-color:rgba(0,0,0,.15)}
.cta .qr p{color:var(--ink);margin:0}

/* Footer */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.8);padding-block:3rem 2rem;font-size:var(--text-sm)}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:start}
.footer-brand{display:flex;gap:1rem;align-items:flex-start}
.footer-brand img{width:64px}
.footer-brand p{margin:0;line-height:1.6}
.site-footer nav{display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;justify-content:flex-end}
.site-footer nav a{color:#fff;text-decoration:none;font-weight:600}
.site-footer nav a:hover{color:var(--gold)}
.copyright{grid-column:1/-1;margin:1.5rem 0 0;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.1);font-size:var(--text-xs);color:rgba(255,255,255,.6)}

/* Responsive */
@media (max-width:900px){
  .hero-grid,.steps,.pedigree-grid,.voices-grid,.research-grid,.faq-grid{grid-template-columns:1fr}
  .hero-art{order:-1;max-width:420px;margin-inline:auto}
  .hero-art::before{inset:0}
  .step-photo{aspect-ratio:16/10;max-height:380px}
  .research-intro{position:static}
  .footer-grid{grid-template-columns:1fr}
  .site-footer nav{justify-content:flex-start}
  .cta-inner{justify-content:flex-start}
}
@media (max-width:480px){
  .store-badge{flex:1 1 100%;justify-content:center}
  .qr{margin-top:.5rem}
}

/* ---------- Legal pages (privacy, terms) ---------- */
.legal-hero{background:var(--navy);color:#fff;padding-block:3rem 2.5rem}
.legal-hero h1{font-family:var(--font-display);font-weight:700;font-size:clamp(1.9rem,4vw,2.6rem);max-width:28ch}
.legal-hero .meta{margin:.9rem 0 0;color:rgba(255,255,255,.75);font-size:var(--text-sm)}
.legal-hero .meta a{color:var(--gold);font-weight:600}
.legal-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:3rem;padding-block:2.5rem 4rem;align-items:start}
.legal{max-width:70ch;font-size:1.02rem}
.legal .statement{font-family:var(--font-display);font-size:1.15rem;line-height:1.5;color:var(--navy);border-left:4px solid var(--gold);padding:.4rem 0 .4rem 1.1rem;margin:0 0 1.75rem}
.legal h2{font-size:1.3rem;margin:2.4rem 0 .75rem;color:var(--navy);scroll-margin-top:84px}
.legal h2:first-of-type{margin-top:0}
.legal h2 .num{color:var(--plum);margin-right:.4rem}
.legal p{margin:0 0 .9rem}
.legal ul{margin:0 0 1rem;padding-left:1.35rem;list-style:disc}
.legal li{margin:.3rem 0}
.legal strong{color:var(--navy)}
.legal .crisis{background:#fff;border:1px solid var(--line);border-radius:12px;padding:1rem 1.2rem;margin:1rem 0 1.25rem}
.legal .crisis p{margin:0}
.legal address{font-style:normal;line-height:1.7}
.legal a{color:var(--plum);font-weight:600}
.legal-toc{position:sticky;top:84px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:1.1rem 1.2rem;font-size:var(--text-sm)}
.legal-toc h3{margin:0 0 .6rem;font-size:var(--text-xs);letter-spacing:.12em;text-transform:uppercase;color:var(--plum)}
.legal-toc ol{margin:0;padding-left:1.2rem;color:var(--muted)}
.legal-toc li{margin:.25rem 0}
.legal-toc a{color:var(--ink);text-decoration:none}
.legal-toc a:hover{color:var(--plum);text-decoration:underline}
.legal-toc .other{margin:1rem 0 0;padding-top:.9rem;border-top:1px solid var(--line)}
.legal-toc .other a{color:var(--plum);font-weight:600}
@media (max-width:900px){
  .legal-layout{grid-template-columns:1fr;gap:1.5rem}
  .legal-toc{position:static;order:-1}
}