/* ==========================================================================
   Neuro Serge - Design System
   Palette derived from the actual Neuro Serge bottle label
   (white / bright blue / dark navy / sage green / silver)
   ========================================================================== */

:root{
  --navy-900:#0A1F35;
  --navy-800:#0E2B47;
  --navy-700:#12365C;
  --navy-600:#1B4A78;
  --blue-600:#1476BF;
  --blue-500:#1B8FD6;
  --blue-400:#3FA9E8;
  --blue-100:#E3F2FC;
  --blue-050:#F2F9FE;
  --sage-300:#BCD4B4;
  --sage-100:#E7F0E2;
  --amber-500:#F0A020;
  --amber-600:#D98708;
  --ink-900:#101B26;
  --ink-700:#33455A;
  --ink-500:#5D7186;
  --line:#DDE6EE;
  --line-soft:#EDF2F7;
  --white:#FFFFFF;
  --surface:#FFFFFF;
  --surface-alt:#F5F9FC;
  --surface-deep:var(--navy-800);

  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(16,27,38,.06),0 2px 8px rgba(16,27,38,.05);
  --shadow:0 4px 12px rgba(16,27,38,.07),0 12px 32px rgba(16,27,38,.07);
  --shadow-lg:0 10px 24px rgba(16,27,38,.09),0 28px 64px rgba(16,27,38,.10);

  --font:"Inter","Segoe UI",-apple-system,BlinkMacSystemFont,Roboto,Helvetica,Arial,sans-serif;
  --wrap:1180px;
  --wrap-narrow:820px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;}
}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.7;
  color:var(--ink-700);
  background:var(--white);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--blue-600);text-underline-offset:.18em;}
a:hover{color:var(--navy-700);}
:focus-visible{outline:3px solid var(--blue-500);outline-offset:3px;border-radius:4px;}

h1,h2,h3,h4,h5{color:var(--navy-800);line-height:1.22;margin:0 0 .6em;font-weight:800;letter-spacing:-.015em;}
h1{font-size:clamp(1.85rem,1.15rem + 2.6vw,3.15rem);}
h2{font-size:clamp(1.5rem,1.06rem + 1.7vw,2.3rem);}
h3{font-size:clamp(1.18rem,1.02rem + .68vw,1.5rem);}
h4{font-size:1.08rem;}
p{margin:0 0 1.05em;}
ul,ol{margin:0 0 1.15em;padding-left:1.25em;}
li{margin-bottom:.45em;}
strong{color:var(--navy-800);font-weight:700;}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0;}
small{font-size:.86rem;}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:20px;}
.wrap-narrow{width:100%;max-width:var(--wrap-narrow);margin-inline:auto;padding-inline:20px;}
section{padding:clamp(2.75rem,1.6rem + 4vw,5rem) 0;}
.band-alt{background:var(--surface-alt);}
.band-tint{background:linear-gradient(180deg,var(--blue-050) 0%,var(--white) 100%);}
.band-deep{background:var(--surface-deep);color:#CFE0EE;}
.band-deep h2,.band-deep h3,.band-deep h4{color:#fff;}
.band-deep a{color:var(--blue-400);}
.section-head{max-width:760px;margin:0 auto 2.25rem;text-align:center;}
.section-head p{color:var(--ink-500);font-size:1.03rem;margin-bottom:0;}
.eyebrow{
  display:inline-block;font-size:.74rem;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;color:var(--blue-600);margin-bottom:.7rem;
}
.band-deep .eyebrow{color:var(--blue-400);}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(10,31,53,.97);
  backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid rgba(255,255,255,.09);
}
.nav{display:flex;align-items:center;gap:16px;min-height:66px;}
.brand{
  display:inline-flex;align-items:baseline;gap:.35rem;color:#fff;font-weight:900;
  font-size:1.16rem;letter-spacing:-.02em;text-decoration:none;margin-right:auto;
}
.brand span{color:var(--blue-400);}
.brand sup{font-size:.55em;font-weight:600;}
.nav-toggle{
  display:none;background:transparent;border:1px solid rgba(255,255,255,.28);
  color:#fff;border-radius:9px;padding:.5rem .7rem;font-size:.85rem;font-weight:700;cursor:pointer;
}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-links a{
  display:block;padding:.55rem .72rem;border-radius:8px;color:#D6E5F2;
  text-decoration:none;font-size:.92rem;font-weight:600;
}
.nav-links a:hover{background:rgba(255,255,255,.10);color:#fff;}
.nav-cta{margin-left:10px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.85rem 1.5rem;border-radius:999px;font-weight:800;font-size:.98rem;
  text-decoration:none;border:2px solid transparent;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease;
  text-align:center;line-height:1.25;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--amber-500);color:var(--navy-900);box-shadow:0 6px 18px rgba(240,160,32,.32);}
.btn-primary:hover{background:var(--amber-600);color:var(--navy-900);}
.btn-blue{background:var(--blue-600);color:#fff;box-shadow:0 6px 18px rgba(20,118,191,.3);}
.btn-blue:hover{background:var(--navy-700);color:#fff;}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-outline{border-color:var(--blue-600);color:var(--blue-600);background:#fff;}
.btn-outline:hover{background:var(--blue-050);}
.btn-sm{padding:.6rem 1.1rem;font-size:.88rem;}
.btn-block{display:flex;width:100%;}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(900px 420px at 82% 8%,rgba(63,169,232,.20),transparent 62%),
    radial-gradient(700px 380px at 8% 92%,rgba(188,212,180,.22),transparent 60%),
    linear-gradient(165deg,var(--navy-900) 0%,var(--navy-700) 58%,var(--navy-600) 100%);
  color:#D3E4F2;padding-top:clamp(2.5rem,1.5rem + 3.5vw,4.25rem);
}
.hero h1{color:#fff;margin-bottom:1rem;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(1.5rem,1rem + 3vw,3.5rem);align-items:center;}
.hero-lede{font-size:clamp(1.02rem,.98rem + .22vw,1.16rem);color:#C6DAEB;max-width:36em;}
.hero-badge{
  display:inline-flex;align-items:center;gap:.5rem;padding:.4rem .9rem;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.2);
  font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#BFDCF2;
  margin-bottom:1.1rem;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem;}
.hero-facts{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:2rem;
  border-top:1px solid rgba(255,255,255,.16);padding-top:1.4rem;
}
.hero-facts div{min-width:0;}
.hero-facts dt{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:#8FB4D2;font-weight:700;}
.hero-facts dd{margin:.2rem 0 0;font-size:1.02rem;font-weight:800;color:#fff;line-height:1.3;}
.hero-visual{position:relative;text-align:center;}
.hero-visual img{margin-inline:auto;filter:drop-shadow(0 26px 44px rgba(0,0,0,.42));max-width:min(100%,420px);}

/* ---------- answer / key-fact blocks (AEO) ---------- */
.answer{
  background:var(--blue-050);border:1px solid var(--blue-100);
  border-left:5px solid var(--blue-500);border-radius:var(--radius);
  padding:1.25rem 1.4rem;margin:0 0 1.6rem;
}
.answer p:last-child{margin-bottom:0;}
.answer .answer-q{
  display:block;font-weight:800;color:var(--navy-800);margin-bottom:.4rem;font-size:1.02rem;
}
.callout{
  border:1px solid var(--line);border-left:5px solid var(--sage-300);background:var(--sage-100);
  border-radius:var(--radius);padding:1.15rem 1.35rem;margin:1.6rem 0;
}
.callout p:last-child{margin-bottom:0;}
.callout-warn{background:#FFF7E8;border-left-color:var(--amber-500);border-color:#F6E3BE;}

/* ---------- generic cards ---------- */
.grid{display:grid;gap:20px;}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:1.6rem;box-shadow:var(--shadow-sm);
}
.card h3{margin-bottom:.5rem;}
.card p:last-child{margin-bottom:0;}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--blue-100);color:var(--blue-600);font-size:1.25rem;margin-bottom:1rem;
}

/* ---------- ingredient cards ---------- */
.ing-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
}
.ing-head{
  display:flex;gap:1rem;align-items:center;padding:1.25rem 1.4rem;
  background:linear-gradient(135deg,var(--blue-050),var(--sage-100));
  border-bottom:1px solid var(--line-soft);
}
.ing-head img{width:66px;height:66px;object-fit:contain;flex:none;}
.ing-head h3{margin:0;font-size:1.12rem;}
.ing-head .latin{display:block;font-size:.82rem;font-weight:600;color:var(--ink-500);font-style:italic;}
.ing-body{padding:1.3rem 1.4rem;flex:1;}
.ing-body dt{
  font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--blue-600);font-weight:800;margin-top:1rem;
}
.ing-body dt:first-child{margin-top:0;}
.ing-body dd{margin:.25rem 0 0;font-size:.95rem;}
.ing-refs{
  padding:.9rem 1.4rem;border-top:1px solid var(--line-soft);background:var(--surface-alt);
  font-size:.86rem;
}
.ing-refs a{font-weight:700;text-decoration:none;}
.ing-refs a:hover{text-decoration:underline;}

/* ---------- research cards ---------- */
.study{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:1.5rem;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
}
.study-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:.85rem;}
.tag{
  font-size:.7rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;
  padding:.25rem .6rem;border-radius:999px;background:var(--blue-100);color:var(--navy-700);
}
.tag-type{background:var(--sage-100);color:#3C5B33;}
.tag-pre{background:#FFF0E0;color:#8A5312;}
.study h3{font-size:1.03rem;line-height:1.4;margin-bottom:.45rem;}
.study .meta{font-size:.85rem;color:var(--ink-500);margin-bottom:.85rem;}
.study dl{margin:0 0 1rem;}
.study dt{
  font-size:.7rem;letter-spacing:.09em;text-transform:uppercase;font-weight:800;
  color:var(--blue-600);margin-top:.8rem;
}
.study dt:first-child{margin-top:0;}
.study dd{margin:.2rem 0 0;font-size:.92rem;}
.study .limit{color:var(--ink-500);}
.study .btn{margin-top:auto;align-self:flex-start;}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch;}
.price{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;
}
.price.featured{border:2px solid var(--amber-500);box-shadow:var(--shadow-lg);}
.price-top{padding:1.1rem 1.4rem;background:var(--blue-050);border-bottom:1px solid var(--line-soft);text-align:center;}
.price.featured .price-top{background:#FFF6E6;}
.price-top h3{margin:0;font-size:1.05rem;}
.price-top .supply{font-size:.87rem;color:var(--ink-500);font-weight:600;}
.price-body{padding:1.4rem;text-align:center;flex:1;display:flex;flex-direction:column;}
.price-body img{margin:0 auto 1rem;max-width:100%;width:auto;max-height:165px;object-fit:contain;}
.price-amount{font-size:2.8rem;font-weight:900;color:var(--navy-800);line-height:1;letter-spacing:-.03em;}
.price-amount sup{font-size:.42em;}
.price-per{font-size:.85rem;color:var(--ink-500);font-weight:700;display:block;margin-bottom:1rem;}
.price-list{list-style:none;margin:0 0 1.25rem;padding:0;text-align:left;font-size:.93rem;}
.price-list li{padding-left:1.5rem;position:relative;}
.price-list li::before{content:"\2713";position:absolute;left:0;color:var(--blue-600);font-weight:900;}
.price-total{
  margin-top:auto;padding-top:1rem;border-top:1px dashed var(--line);
  font-weight:800;color:var(--navy-800);font-size:1.02rem;
}
.price .btn{margin-top:1rem;}

/* ---------- guarantee ---------- */
.guarantee{display:grid;grid-template-columns:210px 1fr;gap:2rem;align-items:center;}
.guarantee img{max-width:210px;}

/* ---------- testimonials ---------- */
.tmnl{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-sm);}
.tmnl blockquote{margin:0 0 1rem;font-size:1rem;color:var(--ink-700);font-style:italic;}
.tmnl figcaption{display:flex;align-items:center;gap:.85rem;}
.tmnl img{width:52px;height:52px;border-radius:50%;object-fit:cover;flex:none;}
.tmnl cite{font-style:normal;font-weight:800;color:var(--navy-800);font-size:.95rem;display:block;}
.tmnl .src{font-size:.78rem;color:var(--ink-500);}

/* ---------- bonuses ---------- */
.bonus{display:grid;grid-template-columns:150px 1fr;gap:1.5rem;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-sm);}
.bonus img{max-width:150px;border-radius:6px;}

/* ---------- FAQ ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin-bottom:12px;overflow:hidden;}
.faq summary{
  cursor:pointer;list-style:none;padding:1.05rem 3rem 1.05rem 1.3rem;position:relative;
  font-weight:800;color:var(--navy-800);font-size:1.02rem;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+";position:absolute;right:1.2rem;top:50%;transform:translateY(-50%);
  font-size:1.4rem;font-weight:400;color:var(--blue-600);line-height:1;
}
.faq[open] summary::after{content:"\2013";}
.faq summary:hover{background:var(--blue-050);}
.faq .faq-body{padding:0 1.3rem 1.25rem;border-top:1px solid var(--line-soft);padding-top:1rem;}
.faq .faq-body p:last-child{margin-bottom:0;}

/* ---------- references ---------- */
.refs{list-style:none;counter-reset:r;margin:0;padding:0;}
.refs li{
  counter-increment:r;position:relative;padding:.85rem 0 .85rem 2.6rem;
  border-bottom:1px solid var(--line-soft);font-size:.92rem;line-height:1.6;
}
.refs li::before{
  content:counter(r);position:absolute;left:0;top:.9rem;width:1.9rem;height:1.9rem;
  border-radius:50%;background:var(--blue-100);color:var(--navy-700);
  font-size:.76rem;font-weight:800;display:grid;place-items:center;
}
.refs a{font-weight:600;word-break:break-word;}

/* ---------- trust strip ---------- */
.trust{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.trust div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;text-align:center;}
.trust h3{font-size:.98rem;margin-bottom:.35rem;}
.trust p{font-size:.9rem;margin:0;color:var(--ink-500);}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--navy-800),var(--navy-600));
  border-radius:var(--radius-lg);padding:clamp(1.75rem,1.2rem + 2vw,3rem);
  text-align:center;color:#D3E4F2;
}
.cta-band h2{color:#fff;}
.cta-band p{max-width:60ch;margin-inline:auto;}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-900);color:#9FBBD2;padding:3rem 0 2rem;font-size:.92rem;}
.site-footer h3{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:.9rem;}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:2rem;margin-bottom:2rem;}
.site-footer ul{list-style:none;margin:0;padding:0;}
.site-footer li{margin-bottom:.5rem;}
.site-footer a{color:#BDD5E8;text-decoration:none;}
.site-footer a:hover{color:#fff;text-decoration:underline;}
.footer-legal{border-top:1px solid rgba(255,255,255,.12);padding-top:1.5rem;font-size:.83rem;line-height:1.7;color:#89A6BE;}
.footer-legal p{margin-bottom:.9rem;}
.footer-brand{color:#fff;font-weight:900;font-size:1.1rem;margin-bottom:.6rem;display:block;}

/* ---------- legal pages ---------- */
.legal-page h1{margin-bottom:.35em;}
.legal-page h2{font-size:1.22rem;margin-top:2rem;}
.legal-page .updated{color:var(--ink-500);font-size:.9rem;margin-bottom:2rem;}
.legal-page p,.legal-page li{font-size:.98rem;}

/* ---------- skip link ---------- */
.skip{position:absolute;left:-9999px;top:0;background:#fff;color:var(--navy-800);padding:.75rem 1.1rem;z-index:200;font-weight:800;border-radius:0 0 8px 0;}
.skip:focus{left:0;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .price-grid{grid-template-columns:1fr;max-width:460px;margin-inline:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:1100px){
  .nav-toggle{display:block;}
  .nav{flex-wrap:wrap;padding-block:.6rem;}
  .nav-links{
    display:none;flex-direction:column;align-items:stretch;width:100%;
    gap:2px;padding:.6rem 0 .9rem;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:.7rem .5rem;}
  .nav-cta{margin:.5rem 0 0;}
  .nav-cta .btn{width:100%;}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;text-align:center;}
  .hero-lede{margin-inline:auto;}
  .hero-actions{justify-content:center;}
  .hero-visual{order:-1;}
  .hero-visual img{max-width:min(78%,320px);}
  .hero-facts{text-align:left;}
}
@media (max-width:720px){
  body{font-size:16px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .trust{grid-template-columns:1fr;}
  .guarantee{grid-template-columns:1fr;text-align:center;justify-items:center;}
  .bonus{grid-template-columns:1fr;justify-items:center;text-align:center;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-facts{grid-template-columns:1fr;gap:.9rem;}
  .ing-head{flex-direction:column;text-align:center;gap:.6rem;}
}
@media (max-width:400px){
  .wrap,.wrap-narrow{padding-inline:16px;}
  .card,.study,.tmnl,.ing-body{padding:1.15rem;}
  .price-amount{font-size:2.35rem;}
  .btn{padding:.8rem 1.1rem;font-size:.93rem;}
}

/* ==========================================================================
   Components added for the guide / buy / review cluster pages
   ========================================================================== */

/* verdict + summary panel */
.verdict{
  background:linear-gradient(135deg,var(--blue-050),var(--sage-100));
  border:1px solid var(--line);border-left:6px solid var(--blue-500);
  border-radius:var(--radius-lg);padding:1.5rem 1.65rem;margin-bottom:1.8rem;
}
.verdict h2,.verdict h3{margin-bottom:.6rem;font-size:1.18rem;}
.verdict p:last-child{margin-bottom:0;}

/* pros and cons */
.proscons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.pc{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-sm);}
.pc h3{font-size:1.05rem;margin-bottom:.9rem;}
.pc ul{list-style:none;margin:0;padding:0;font-size:.95rem;}
.pc li{padding-left:1.7rem;position:relative;margin-bottom:.7rem;}
.pc-pro li::before{content:"\2713";position:absolute;left:0;top:0;color:#2E7D4F;font-weight:900;}
.pc-con li::before{content:"\2013";position:absolute;left:0;top:0;color:#B4671B;font-weight:900;font-size:1.1em;line-height:1.4;}

/* checklist */
.checklist{list-style:none;margin:0 0 1.2rem;padding:0;}
.checklist li{
  position:relative;padding:.8rem 0 .8rem 2.4rem;border-bottom:1px solid var(--line-soft);font-size:.96rem;
}
.checklist li::before{
  content:"";position:absolute;left:0;top:1.05rem;width:1.1rem;height:1.1rem;
  border:2px solid var(--blue-500);border-radius:4px;background:#fff;
}
.checklist li strong{display:block;}

/* compact fact table */
.facts{width:100%;border-collapse:collapse;font-size:.95rem;margin-bottom:1.4rem;}
.facts caption{text-align:left;font-size:.8rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--ink-500);font-weight:800;padding-bottom:.6rem;}
.facts th,.facts td{text-align:left;padding:.7rem .8rem;border-bottom:1px solid var(--line-soft);vertical-align:top;}
.facts thead th{background:var(--blue-050);color:var(--navy-800);font-weight:800;font-size:.86rem;
  border-bottom:1px solid var(--line);}
.facts tbody th{font-weight:700;color:var(--navy-800);width:38%;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}

/* claim classification badges */
.claim{
  display:inline-block;font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
  padding:.2rem .55rem;border-radius:999px;margin-bottom:.5rem;
}
.claim-verified{background:#E4F2E8;color:#255E3C;}
.claim-marketing{background:#FFF1DE;color:#8A5312;}
.claim-research{background:var(--blue-100);color:var(--navy-700);}
.claim-unknown{background:#F0EAF4;color:#5A3E73;}

/* compact source list */
.sources{list-style:none;counter-reset:s;margin:0;padding:0;}
.sources li{
  counter-increment:s;position:relative;padding:.6rem 0 .6rem 2.2rem;
  border-bottom:1px solid var(--line-soft);font-size:.88rem;line-height:1.55;
}
.sources li::before{
  content:counter(s);position:absolute;left:0;top:.65rem;width:1.6rem;height:1.6rem;border-radius:50%;
  background:var(--blue-100);color:var(--navy-700);font-size:.72rem;font-weight:800;display:grid;place-items:center;
}
.sources a{font-weight:600;word-break:break-word;}

/* breadcrumb trail */
.crumbs{font-size:.85rem;color:var(--ink-500);padding:1rem 0 0;}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;margin:0;padding:0;}
.crumbs li::after{content:"/";margin-left:.4rem;color:var(--line);}
.crumbs li:last-child::after{content:"";}
.crumbs a{text-decoration:none;}

/* related-pages cluster */
.cluster{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.cluster a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1.2rem 1.35rem;text-decoration:none;box-shadow:var(--shadow-sm);
}
.cluster a:hover{border-color:var(--blue-500);box-shadow:var(--shadow);}
.cluster strong{display:block;color:var(--navy-800);font-size:1rem;margin-bottom:.25rem;}
.cluster span{color:var(--ink-500);font-size:.9rem;}

@media (max-width:720px){
  .proscons,.cluster{grid-template-columns:1fr;}
  .facts tbody th{width:auto;}
}

/* review-page product figure and ingredient thumbnails */
.product-figure{margin:0 0 1.8rem;text-align:center;}
.product-figure img{margin-inline:auto;max-width:min(100%,300px);}
.product-figure figcaption{font-size:.85rem;color:var(--ink-500);margin-top:.6rem;}
.card-thumb{
  width:58px;height:58px;object-fit:contain;margin-bottom:.9rem;
  background:var(--blue-050);border:1px solid var(--line-soft);border-radius:12px;padding:6px;
}

/* ---------- customer testimonial cards ---------- */
.tst-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.tst{
  background:#E9E9E9;border-radius:16px;padding:2.4rem 1.7rem 2.2rem;
  text-align:center;margin:0;display:flex;flex-direction:column;align-items:center;
}
.tst img{
  width:180px;height:180px;object-fit:cover;border-radius:20px;
  border:4px solid #16181A;margin:0 0 1.4rem;
}
.tst-verified{
  color:#1E9E4A;font-size:1.06rem;font-weight:600;margin-bottom:.5rem;line-height:1.3;
}
.tst-stars{letter-spacing:.08em;white-space:nowrap;}
.tst h3{font-size:1.32rem;color:#12161C;margin:0 0 .95rem;line-height:1.32;}
.tst blockquote{margin:0 0 1.5rem;color:#4A5560;font-size:1rem;line-height:1.6;}
.tst-name{
  display:inline-block;padding:.62rem 1.45rem;border:1px solid #6B3FA0;border-radius:999px;
  color:#6B3FA0;font-weight:800;font-size:.95rem;font-style:normal;line-height:1.3;
}
@media (max-width:900px){
  .tst-grid{grid-template-columns:1fr;max-width:430px;margin-inline:auto;}
}
@media (max-width:400px){
  .tst{padding:1.9rem 1.2rem 1.7rem;}
  .tst img{width:150px;height:150px;}
  .tst h3{font-size:1.2rem;}
}