/* ══════════════════════════════════════════════════════════════
   TOKENS
   ══════════════════════════════════════════════════════════════ */
:root{
  --enamel:#E6E9E4;      /* ground — lab casework enamel */
  --stock:#FCFCFB;       /* label stock — panels, rows, sticker */
  --ink:#15181A;         /* printing ink */
  --ink-2:#5A6260;       /* secondary ink — 5.1:1 on enamel */
  --rule:#C9CFC8;        /* hairline */
  --seal:#1B3A6B;        /* MEASURED VALUES ONLY — from the vial label */
  --action:#F2C300;      /* CLICK TARGETS ONLY */

  --disp:"Schibsted Grotesk","Helvetica Neue",Arial,sans-serif;
  --prose:"Spectral",Georgia,"Times New Roman",serif;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;

  --bar:46px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--enamel);color:var(--ink);
  font-family:var(--prose);font-size:17px;line-height:1.62;
  font-optical-sizing:auto;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{margin:0;font-family:var(--disp);font-weight:800;letter-spacing:-.02em;line-height:1.1}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
sub,sup{line-height:0}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

:focus-visible{outline:3px solid var(--ink);outline-offset:2px;border-radius:1px}

/* standalone links need a 24px tap target (WCAG 2.5.8); grow the target with
   padding-block so the line box is left alone */
.ref,.rlink,.coa-link,.fund-line a,.crumbs a,.foot-row a,
.tsrc a,.prose a,.faq-body a,.sec-nav a,.toc-list a,.disclosure a{padding-block:6px}

/* ══════════════════════════════════════════════════════════════
   MASTHEAD — the one dark band, anchoring a light page
   ══════════════════════════════════════════════════════════════ */
.masthead{background:var(--ink);color:var(--stock)}
.masthead-in{display:flex;align-items:center;gap:18px;min-height:var(--bar)}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;flex:0 0 auto}
.brand-glyph{
  font-family:var(--mono);font-weight:600;font-size:.68rem;letter-spacing:.04em;
  background:var(--action);color:var(--ink);padding:4px 6px;border-radius:2px;
}
.brand-name{font-family:var(--disp);font-weight:700;font-size:.9rem;letter-spacing:.01em}
.crumbs{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;
  color:#9AA3A0;margin-left:auto;text-align:right;
}
.crumbs a{color:#9AA3A0;text-decoration:none;border-bottom:1px solid #40474A}
.crumbs a:hover{color:var(--stock)}
.crumbs b{color:var(--stock);font-weight:500}

/* ══════════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════════ */
.hero{
  display:grid;gap:0 56px;
  grid-template-columns:minmax(0,1fr) minmax(270px,40%);
  grid-template-areas:"copy vial" "act vial";
  align-items:start;padding:54px 0 40px;
}
.hero-copy{grid-area:copy;min-width:0}
.hero-vial{grid-area:vial;min-width:0}
.hero-act{grid-area:act;padding-top:32px}

.eyebrow{
  font-family:var(--mono);font-size:.7rem;font-weight:500;letter-spacing:.13em;
  text-transform:uppercase;color:var(--ink-2);margin:0 0 20px;
}
.h1{font-size:clamp(3rem,8.6vw,5.4rem);font-weight:900;letter-spacing:-.045em;line-height:.9}
.thesis{
  font-family:var(--disp);font-weight:700;font-size:clamp(1rem,2.1vw,1.22rem);
  text-transform:uppercase;line-height:1.26;max-width:23ch;
  margin:20px 0 0;padding-top:16px;border-top:2px solid var(--ink);
}
.lede{font-size:1.08rem;line-height:1.58;max-width:46ch;margin:20px 0 0}
.lede em{font-style:italic;color:var(--ink-2)}

/* the vial, printed into the page — multiply drops the JPEG's white ground */
.vialbox{position:relative;margin:0;max-width:420px}
.vialbox img{mix-blend-mode:multiply;width:100%}

/* ── SIGNATURE — QC sticker carrying the price ──────────────── */
.sticker{
  position:absolute;left:-14px;top:16px;z-index:2;
  background:var(--stock);color:var(--ink);
  padding:14px 18px 12px;border-radius:2px;min-width:196px;
  transform:rotate(-3.1deg);
  box-shadow:6px 7px 0 rgba(21,24,26,.11);
}
.sticker::before{
  content:"";position:absolute;inset:4px;border:1px dashed var(--rule);
  border-radius:1px;pointer-events:none;
}
.stk-kick{
  display:block;font-family:var(--mono);font-size:.6rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);
}
.stk-fig{
  display:block;font-family:var(--disp);font-weight:900;
  font-size:clamp(2.4rem,6.2vw,3.2rem);letter-spacing:-.045em;line-height:1;
  color:var(--seal);margin:5px 0 2px;font-variant-numeric:tabular-nums;
}
.stk-unit{
  display:block;font-family:var(--disp);font-weight:700;font-size:.72rem;
  letter-spacing:.11em;text-transform:uppercase;
}
.stk-lot{
  display:block;margin-top:9px;padding-top:8px;border-top:1px solid var(--rule);
  font-family:var(--mono);font-size:.62rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink-2);
}
.stk-lot-2{margin-top:1px;padding-top:0;border-top:0}

/* ── actions ─────────────────────────────────────────────────── */
.act-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px}
.cta{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--action);color:var(--ink);text-decoration:none;
  font-family:var(--mono);font-size:.78rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;
  padding:14px 20px;border:1px solid var(--ink);border-radius:2px;
  transition:background .14s linear,color .14s linear;
}
.cta:hover{background:var(--ink);color:var(--action)}
.cta-lg{font-size:.85rem;padding:17px 26px}
.cta-ghost{
  font-family:var(--mono);font-size:.74rem;font-weight:500;letter-spacing:.07em;
  text-transform:uppercase;text-decoration:none;
  border-bottom:1px solid var(--ink-2);padding-block:6px;
}
.cta-ghost:hover{border-bottom-color:var(--ink)}
.fund-line{
  margin:22px 0 0;max-width:58ch;
  font-family:var(--mono);font-size:.71rem;line-height:1.75;color:var(--ink-2);
}
.fund-line a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--rule)}
.fund-line a:hover{border-bottom-color:var(--ink)}

/* ══════════════════════════════════════════════════════════════
   LEDGER — bracketed by full-weight rules, hairlines inside
   ══════════════════════════════════════════════════════════════ */
.vlist-head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:6px 18px;padding-bottom:10px;border-bottom:2px solid var(--ink);
}
.vlist-title{
  font-family:var(--disp);font-weight:800;font-size:1.02rem;
  letter-spacing:.02em;text-transform:uppercase;
}
.vlist-note{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.07em;
  text-transform:uppercase;color:var(--ink-2);
}
.vlist{border-bottom:2px solid var(--ink)}

.vrow{
  display:grid;gap:0 26px;
  grid-template-columns:minmax(0,1fr) auto;
  grid-template-areas:"id price" "data price" "foot foot";
  padding:22px 0;border-bottom:1px solid var(--rule);
}
.vrow:last-child{border-bottom:0}

.vrow-id{grid-area:id;display:flex;align-items:flex-start;gap:14px;min-width:0}
.vrank{
  font-family:var(--mono);font-size:.78rem;font-weight:600;color:var(--ink-2);
  padding-top:6px;flex:0 0 auto;
}
.vlogo{
  position:relative;flex:0 0 auto;width:64px;height:40px;border-radius:2px;
  background:var(--stock);border:1px solid var(--rule);
  display:grid;place-items:center;overflow:hidden;
}
.vlogo img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:5px 7px;background:var(--stock)}
.logo-mark{font-family:var(--disp);font-weight:800;font-size:1.05rem;color:var(--vc,var(--ink))}
.vname{font-family:var(--disp);font-weight:800;font-size:1.18rem;letter-spacing:-.01em;line-height:1.14}
.vproduct{
  font-family:var(--mono);font-size:.69rem;letter-spacing:.05em;text-transform:uppercase;
  color:var(--ink-2);margin-top:5px;
}
.flags{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}
.flag-item{
  font-family:var(--mono);font-size:.6rem;font-weight:600;letter-spacing:.09em;
  text-transform:uppercase;padding:4px 7px;border-radius:2px;
  border:1px solid var(--rule);color:var(--ink-2);background:var(--stock);
}
.flag-item.lead{border-color:var(--ink);color:var(--ink)}

/* measured values — the only place --seal appears at size */
.vprice{grid-area:price;text-align:right;align-self:start}
.vppm{
  font-family:var(--mono);font-weight:600;color:var(--seal);
  font-size:clamp(1.55rem,4.2vw,2.2rem);line-height:1;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
}
.vppm-unit{
  display:block;font-size:.59rem;font-weight:500;letter-spacing:.11em;
  text-transform:uppercase;color:var(--ink-2);margin-top:7px;
}
.vppm.unranked{color:var(--ink)}
.vlist-price{
  font-family:var(--mono);font-size:.75rem;margin-top:11px;
  font-variant-numeric:tabular-nums;
}
.vlist-price span{color:var(--ink-2)}

.vdetails{grid-area:data;margin:15px 0 0;display:grid;gap:5px}
.drow{display:flex;gap:12px;align-items:baseline;flex-wrap:wrap}
.drow dt{
  flex:0 0 66px;font-family:var(--mono);font-size:.62rem;font-weight:500;
  letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);
}
.drow dd{margin:0;font-size:.9rem;min-width:0}
.coa-link{text-decoration:none;border-bottom:1px solid var(--ink-2)}
.coa-link:hover{border-bottom-color:var(--ink)}
.coa-lab{font-family:var(--mono);font-size:.65rem;color:var(--ink-2);margin-left:8px}
.coa-none{color:var(--ink-2);font-style:italic}

.vfoot{
  grid-area:foot;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:12px 18px;margin-top:18px;
}
.verified{
  font-family:var(--mono);font-size:.63rem;letter-spacing:.09em;
  text-transform:uppercase;color:var(--ink-2);
}
.cta-group{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.cta-code{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.05em;text-transform:uppercase;
  background:transparent;color:var(--ink-2);border:1px dashed var(--rule);
  border-radius:2px;padding:10px 12px;cursor:pointer;
}
.cta-code b{color:var(--ink);font-weight:600}
.cta-code:hover{border-color:var(--ink-2);color:var(--ink)}
.cta-code.copied{border-style:solid;border-color:var(--ink);color:var(--ink)}

.disclosure{
  font-family:var(--mono);font-size:.7rem;line-height:1.8;color:var(--ink-2);
  max-width:78ch;margin:18px 0 0;
}
.disclosure b{color:var(--ink);font-weight:600}

/* ══════════════════════════════════════════════════════════════
   SECTION NAV — replaces the old sidebar; pins under the masthead
   ══════════════════════════════════════════════════════════════ */
.sec-nav{
  position:sticky;top:0;z-index:20;margin-top:44px;
  background:var(--enamel);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);
}
.sec-nav-in{display:flex;gap:0;overflow-x:auto;scrollbar-width:none}
.sec-nav-in::-webkit-scrollbar{display:none}
.sec-nav a{
  flex:0 0 auto;text-decoration:none;white-space:nowrap;
  font-family:var(--mono);font-size:.67rem;font-weight:500;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-2);
  padding:12px 15px;border-right:1px solid var(--rule);
}
.sec-nav a:first-child{padding-left:0}
.sec-nav a:hover{color:var(--ink)}
.sec-nav a.active{color:var(--ink);box-shadow:inset 0 -2px 0 var(--ink)}

/* ══════════════════════════════════════════════════════════════
   SECTIONS
   ══════════════════════════════════════════════════════════════ */
.sec{padding:62px 0 0;scroll-margin-top:60px}
.sec:last-of-type{padding-bottom:70px}
.sec-head{margin-bottom:26px}
.sec-kicker{
  display:block;font-family:var(--mono);font-size:.65rem;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);margin-bottom:11px;
}
.sec-head h2{font-size:clamp(1.6rem,3.6vw,2.15rem);letter-spacing:-.028em;max-width:30ch}
.sub-h{
  font-size:1.12rem;letter-spacing:-.012em;text-transform:uppercase;
  font-weight:800;margin:46px 0 18px;padding-bottom:9px;border-bottom:1px solid var(--ink);
}
.prose{max-width:66ch}
.prose p{font-size:1.02rem}
.prose strong{font-weight:600}
.prose a:not(.ref){text-decoration:none;border-bottom:1px solid var(--ink-2)}
.prose a:not(.ref):hover{border-bottom-color:var(--ink)}
.count{font-family:var(--mono);font-weight:600;color:var(--seal);font-size:.94em}
.standfirst{font-size:1.12rem;line-height:1.5;font-weight:500}
.ctable .trole{
  display:block;font-family:var(--mono);font-size:.62rem;font-weight:400;
  letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);margin-top:5px;
}
.ctable tbody tr.subject th,.ctable tbody tr.subject td{background:rgba(27,58,107,.045)}

/* inline citation */
.ref{
  font-family:var(--mono);font-size:.7em;font-weight:500;text-decoration:none;
  color:var(--seal);border-bottom:1px solid var(--rule);
}
.ref:hover{border-bottom-color:var(--seal)}

/* research-use / caution notice — no third color, just weight and rule */
.flag{
  font-family:var(--mono);font-size:.78rem;line-height:1.7;color:var(--ink);
  background:var(--stock);border:1px solid var(--rule);
  border-left:3px solid var(--ink);border-radius:2px;
  padding:15px 17px;max-width:74ch;
}

/* card grids */
.cards-3{display:grid;gap:1px;grid-template-columns:repeat(3,minmax(0,1fr));background:var(--rule);border:1px solid var(--rule);border-radius:2px}
.cards-3.cards-4{grid-template-columns:repeat(2,minmax(0,1fr))}
.info-card{background:var(--stock);padding:22px}
.info-card h3{font-size:1rem;text-transform:uppercase;letter-spacing:.01em;margin-bottom:9px}
.info-card p{font-size:.93rem;line-height:1.6;margin:0;color:var(--ink)}

/* receptor ledger */
.targets{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.trow{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--rule)}
.trow:last-child{border-bottom:0}
.ttoken{
  flex:0 0 74px;font-family:var(--mono);font-size:.74rem;font-weight:600;
  letter-spacing:.04em;color:var(--seal);padding-top:3px;
}
.tname{font-family:var(--disp);font-weight:800;font-size:1.04rem;letter-spacing:-.01em}
.tstate{
  display:block;font-family:var(--mono);font-size:.63rem;font-weight:500;
  letter-spacing:.09em;text-transform:uppercase;color:var(--ink-2);margin-top:5px;
}
.tdesc{font-size:.95rem;line-height:1.58;margin:10px 0 0;max-width:62ch}
.tsrc{font-family:var(--mono);font-size:.68rem;color:var(--ink-2);margin:9px 0 0}
.tnote{
  font-family:var(--mono);font-size:.72rem;line-height:1.78;color:var(--ink-2);
  max-width:76ch;margin:18px 0 0;
}
.tnote strong{color:var(--ink);font-weight:600}

/* proposed pathways */
.paths{margin:0;border-top:1px solid var(--rule)}
.prow{display:grid;gap:4px 26px;grid-template-columns:200px minmax(0,1fr);padding:15px 0;border-bottom:1px solid var(--rule)}
.prow dt{
  font-family:var(--mono);font-size:.71rem;font-weight:500;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink);
}
.prow dd{margin:0;font-size:.95rem;line-height:1.56;color:var(--ink);max-width:70ch}

/* study framework panels */
.evidence{display:grid;gap:1px;grid-template-columns:repeat(2,minmax(0,1fr));background:var(--rule);border:1px solid var(--rule);border-radius:2px}
.ev{display:flex;flex-direction:column;gap:6px;background:var(--stock);padding:21px;text-decoration:none}
.ev:hover{background:#fff}
.ev-name{font-family:var(--disp);font-weight:800;font-size:1.08rem;letter-spacing:-.012em}
.ev-meta{font-size:.92rem;line-height:1.55}
.ev-cite{
  font-family:var(--mono);font-size:.66rem;letter-spacing:.03em;color:var(--seal);
  margin-top:auto;padding-top:10px;
}

/* tables */
.tscroll{overflow-x:auto;border:1px solid var(--rule);border-radius:2px;background:var(--stock)}
.ctable{width:100%;border-collapse:collapse;font-size:.93rem;min-width:440px}
.ctable th,.ctable td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--rule);vertical-align:top}
.ctable thead th{
  font-family:var(--mono);font-size:.63rem;font-weight:600;letter-spacing:.11em;
  text-transform:uppercase;color:var(--stock);background:var(--ink);border-bottom:0;
}
.ctable tbody th{
  font-family:var(--mono);font-size:.7rem;font-weight:500;letter-spacing:.05em;
  color:var(--ink-2);
}
/* attribute/value table: labels are uppercase and hold a fixed column */
.ctable.kv tbody th{text-transform:uppercase;width:32%}
/* comparison table: row headers are compound names — no uppercase, or the
   transform turns "Thymosin β4" into a capital Beta that reads as "B4" */
.ctable.cmp tbody th{color:var(--ink);font-size:.76rem;font-weight:600}
.ctable.cmp .nw{white-space:nowrap}
.ctable tbody tr:last-child th,.ctable tbody tr:last-child td{border-bottom:0}
.ctable .num{font-family:var(--mono);font-size:.87rem;font-variant-numeric:tabular-nums}
.seqcell{font-family:var(--mono);font-size:.76rem;line-height:1.6;word-break:break-word}
.ctable a:not(.ref){text-decoration:none;border-bottom:1px solid var(--ink-2)}

/* storage matrix — temperatures set large, rhyming with the $/mg column */
.storage{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.srow{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:19px 0;border-bottom:1px solid var(--rule)}
.srow:last-child{border-bottom:0}
.sstate{font-family:var(--disp);font-weight:800;font-size:1.04rem;text-transform:uppercase;letter-spacing:.005em}
.sdur{font-size:.93rem;color:var(--ink-2);margin:6px 0 0}
.stemp{
  flex:0 0 auto;font-family:var(--mono);font-weight:600;color:var(--seal);
  font-size:clamp(1.5rem,4vw,2.1rem);letter-spacing:-.03em;line-height:1;
  font-variant-numeric:tabular-nums;
}
.sunit{font-size:.44em;font-weight:500;letter-spacing:.04em;color:var(--ink-2);margin-left:3px}

/* reconstitution protocol — the only numbered sequence on the page */
.steps{counter-reset:step;display:grid;gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:2px}
.step{background:var(--stock);padding:17px 20px 17px 58px;position:relative}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:20px;top:17px;
  font-family:var(--mono);font-size:.74rem;font-weight:600;color:var(--seal);
}
.step p{margin:0;font-size:.96rem;line-height:1.58}
.step b{font-weight:600}

/* COA methods */
.methods{display:grid;gap:1px;grid-template-columns:repeat(2,minmax(0,1fr));background:var(--rule);border:1px solid var(--rule);border-radius:2px;margin-top:18px}
.method{background:var(--stock);padding:19px}
.method-n{
  display:block;font-family:var(--mono);font-size:.73rem;font-weight:600;
  letter-spacing:.07em;text-transform:uppercase;color:var(--ink);margin-bottom:7px;
}
.method p{margin:0;font-size:.92rem;line-height:1.55;color:var(--ink-2)}

/* cited sources */
.refs{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.rref{
  display:grid;gap:4px 16px;align-items:start;
  grid-template-columns:44px minmax(0,1fr) auto;
  padding:16px 10px 16px 0;border-bottom:1px solid var(--rule);
  scroll-margin-top:70px;
}
.rref:last-child{border-bottom:0}
.rref:target{background:var(--stock);box-shadow:inset 3px 0 0 var(--seal);padding-left:14px}
.rref:target .rmeta{color:var(--ink-2)}
.rnum{font-family:var(--mono);font-size:.75rem;font-weight:600;color:var(--seal);padding-top:2px}
.rtitle{font-size:.98rem;line-height:1.44;font-weight:500}
.rmeta{font-family:var(--mono);font-size:.66rem;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2);margin-top:6px}
.rlink{
  font-family:var(--mono);font-size:.67rem;letter-spacing:.05em;text-transform:uppercase;
  text-decoration:none;color:var(--ink);border-bottom:1px solid var(--ink-2);white-space:nowrap;
}
.rlink:hover{border-bottom-color:var(--ink)}

/* faq */
.faq{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.faq details{border-bottom:1px solid var(--rule)}
.faq details:last-child{border-bottom:0}
.faq summary{
  cursor:pointer;list-style:none;padding:17px 34px 17px 0;position:relative;
  font-family:var(--disp);font-weight:700;font-size:1.02rem;letter-spacing:-.01em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:4px;top:16px;
  font-family:var(--mono);font-size:1.1rem;font-weight:500;color:var(--ink-2);
}
.faq details[open] summary::after{content:"−"}
.faq summary:hover{text-decoration:underline;text-underline-offset:3px}
.faq-body{font-size:.98rem;line-height:1.62;padding:0 0 20px;max-width:70ch;color:var(--ink)}


/* ══════════════════════════════════════════════════════════════
   MOBILE STICKY ACTION — paid traffic converts on the thumb
   ══════════════════════════════════════════════════════════════ */
.thumbbar{
  position:fixed;left:0;right:0;bottom:0;z-index:40;
  display:none;align-items:center;gap:12px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:var(--ink);color:var(--stock);
  transform:translateY(105%);visibility:hidden;pointer-events:none;
  transition:transform .22s ease-out,visibility .22s linear;
}
.thumbbar.up{transform:translateY(0);visibility:visible;pointer-events:auto}
.tb-meta{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1 1 auto}
.tb-lab{font-family:var(--mono);font-size:.58rem;letter-spacing:.11em;text-transform:uppercase;color:#9AA3A0}
.tb-val{font-family:var(--mono);font-size:.88rem;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.thumbbar .cta{padding:12px 16px;font-size:.72rem;flex:0 0 auto}

/* ══════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════ */
.site-foot{background:var(--ink);color:#9AA3A0;padding:34px 0;margin-top:8px}
.foot-ruo{
  font-family:var(--mono);font-size:.71rem;line-height:1.8;max-width:84ch;margin:0 0 20px;
}
.foot-ruo b{
  display:block;color:var(--stock);font-weight:600;letter-spacing:.11em;
  text-transform:uppercase;font-size:.65rem;margin-bottom:7px;
}
.foot-row{
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  padding-top:18px;border-top:1px solid #2E3438;
  font-family:var(--mono);font-size:.67rem;letter-spacing:.04em;
}

/* on-page contents, mobile only */
.toc{
  margin:26px 0 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);display:none;
}
.toc summary{
  cursor:pointer;list-style:none;padding:13px 0;
  font-family:var(--mono);font-size:.7rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;
}
.toc summary::-webkit-details-marker{display:none}
.toc-list{display:grid;padding-bottom:12px}
.toc-list a{
  font-family:var(--mono);font-size:.71rem;letter-spacing:.04em;text-decoration:none;
  color:var(--ink-2);padding:7px 0;border-top:1px solid var(--rule);
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */
@media (max-width:1000px){
  .hero{
    grid-template-columns:minmax(0,1fr);
    grid-template-areas:"copy" "vial" "act";
    gap:0;padding:40px 0 34px;
  }
  .hero-vial{margin-top:26px}
  .vialbox{max-width:340px;margin-inline:auto}
  .hero-act{padding-top:26px}
  .lede,.thesis{max-width:52ch}
}
@media (max-width:760px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .cards-3,.cards-3.cards-4,.evidence,.methods{grid-template-columns:minmax(0,1fr)}
  .prow{grid-template-columns:minmax(0,1fr);gap:3px}
  .sec-nav{display:none}
  .toc{display:block}
  .sec{padding-top:50px;scroll-margin-top:16px}
  .vrow{
    grid-template-columns:minmax(0,1fr);
    grid-template-areas:"id" "price" "data" "foot";
    gap:0;padding:24px 0;
  }
  .vprice{text-align:left;margin-top:16px;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
  .vppm-unit{display:inline;margin:0 0 0 8px}
  .vlist-price{margin-top:0}
  .vfoot{flex-direction:column;align-items:stretch}
  .cta-group{flex-direction:column;align-items:stretch}
  .cta-group .cta,.cta-group .cta-code{justify-content:center;text-align:center}
  .thumbbar{display:flex}
  .sticker{left:-6px;top:10px;min-width:172px;padding:12px 15px 11px}
  .rref{grid-template-columns:38px minmax(0,1fr);grid-template-rows:auto auto}
  .rlink{grid-column:2;justify-self:start}
  .srow{align-items:flex-start}
}
@media (max-width:420px){
  .h1{font-size:2.6rem}
  .drow dt{flex-basis:100%}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
}
@media print{
  .thumbbar,.sec-nav{display:none}
  body{background:#fff}
}

.parent-note{
  font-family:var(--mono);font-size:.75rem;line-height:1.7;color:var(--ink);
  background:var(--stock);border:1px solid var(--rule);border-left:3px solid var(--ink);
  border-radius:2px;padding:15px 17px;max-width:74ch;margin:0 0 22px;
}
.lotgrid{display:grid;gap:1px;grid-template-columns:repeat(2,minmax(0,1fr));
  background:var(--rule);border:1px solid var(--rule);border-radius:2px}
.lotrow{background:var(--stock);padding:13px 16px;display:flex;gap:12px;justify-content:space-between;align-items:baseline}
.lotrow dt{font-family:var(--mono);font-size:.62rem;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-2)}
.lotrow dd{margin:0;font-family:var(--mono);font-size:.8rem;text-align:right}
@media (max-width:760px){.lotgrid{grid-template-columns:minmax(0,1fr)}}

/* a bullet with no "Label:" prefix has no term — let the text use the full width */
.prow:has(dt:empty){grid-template-columns:minmax(0,1fr)}
.prow dt:empty{display:none}

/* ══════════════════════════════════════════════════════════════
   SITE — index and category pages
   ══════════════════════════════════════════════════════════════ */
.site-hero{padding:58px 0 42px;max-width:60ch}
.site-hero .h1{font-size:clamp(2.4rem,6.4vw,4.2rem);line-height:.96;margin-bottom:22px}
.site-hero .lede{max-width:56ch;margin:0}

.fam{padding-top:46px}
.fam-head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:6px 18px;padding-bottom:10px;border-bottom:2px solid var(--ink);
}
.fam-head h2{font-size:1.16rem;letter-spacing:.01em;text-transform:uppercase}
.fam-head h2 a{text-decoration:none}
.fam-head h2 a:hover{color:var(--seal)}
.fam-count{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-2);
}
.fam-desc{
  font-family:var(--mono);font-size:.72rem;line-height:1.7;color:var(--ink-2);
  margin:12px 0 20px;max-width:74ch;
}

/* compound cards — a grid of ledger rows, not decorated boxes */
.ccgrid{
  display:grid;gap:1px;
  grid-template-columns:repeat(auto-fill,minmax(248px,1fr));
}
.cc{
  display:flex;flex-direction:column;gap:7px;
  background:var(--stock);padding:18px 20px 16px;text-decoration:none;
  /* the ring, not a container background, draws the grid — an unfilled cell
     in the last row then stays enamel instead of showing as a grey block */
  box-shadow:0 0 0 1px var(--rule);
  transition:background .12s linear;
}
.cc:hover{background:#fff}
.cc-top{display:flex;align-items:baseline;gap:9px;flex-wrap:wrap}
.cc-name{font-family:var(--disp);font-weight:800;font-size:1.06rem;letter-spacing:-.012em}
.cc-fmt{
  font-family:var(--mono);font-size:.55rem;font-weight:600;letter-spacing:.11em;
  text-transform:uppercase;color:var(--ink-2);
  border:1px solid var(--rule);border-radius:2px;padding:2px 5px;
}
.cc-meta{
  font-family:var(--mono);font-size:.63rem;letter-spacing:.09em;
  text-transform:uppercase;color:var(--ink-2);
}
.cc-ppm{
  font-family:var(--mono);font-weight:600;font-size:1.3rem;color:var(--seal);
  letter-spacing:-.02em;margin-top:auto;padding-top:8px;font-variant-numeric:tabular-nums;
}
.cc-unit{font-size:.52em;font-weight:500;letter-spacing:.08em;color:var(--ink-2);margin-left:2px}
.cc-ppm.cc-none{color:var(--ink-2)}

/* category cross-links */
.famnav{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  margin:52px 0 70px;padding-top:22px;border-top:1px solid var(--ink);
}
.famnav-page{margin:56px 0 0}
.famnav-lab{
  font-family:var(--mono);font-size:.65rem;font-weight:500;letter-spacing:.13em;
  text-transform:uppercase;color:var(--ink-2);width:100%;
}
.famnav a{
  font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.05em;
  text-decoration:none;background:var(--stock);border:1px solid var(--rule);
  border-radius:2px;padding:11px 14px;
}
.famnav a:hover{border-color:var(--ink)}
.famnav a.famnav-all{background:transparent;border-style:dashed}
@media (max-width:760px){
  .site-hero{padding:34px 0 26px}
  .ccgrid{grid-template-columns:minmax(0,1fr)}
  .famnav{margin:38px 0 52px}
}
.cc-ppm.cc-alt{color:var(--ink)}

/* ══════════════════════════════════════════════════════════════
   COA VIEWER — overlay for lot certificates. Sits above the
   thumbbar (z-index 40); hairline chrome, no rounded softness.
   ══════════════════════════════════════════════════════════════ */
body.coa-locked{overflow:hidden}

/* the trigger is a <button> but must read as the same link as before */
button.coa-link{
  font:inherit;color:inherit;background:none;cursor:pointer;text-align:left;
  border:0;border-bottom:1px solid var(--ink-2);padding-inline:0;
}
button.coa-link:hover{border-bottom-color:var(--ink)}

.coa-view{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;padding:20px}
.coa-view[hidden]{display:none}
.coa-scrim{position:absolute;inset:0;background:rgba(21,24,26,.74);animation:coa-in .16s ease-out}
.coa-sheet{
  position:relative;display:flex;flex-direction:column;
  width:100%;max-width:940px;height:min(92vh,1000px);
  background:var(--stock);border:1px solid var(--rule);border-radius:2px;
  box-shadow:0 18px 60px rgba(21,24,26,.34);
  animation:coa-up .18s ease-out;
}
@keyframes coa-in{from{opacity:0}to{opacity:1}}
@keyframes coa-up{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.coa-bar{
  display:flex;align-items:center;gap:16px;justify-content:space-between;
  padding:13px 16px;border-bottom:1px solid var(--rule);flex:0 0 auto;
}
.coa-bar-id{display:flex;flex-direction:column;gap:3px;min-width:0}
.coa-bar-t{
  font-family:var(--disp);font-weight:700;font-size:.92rem;letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.coa-bar-m{
  font-family:var(--mono);font-size:.62rem;letter-spacing:.09em;
  text-transform:uppercase;color:var(--ink-2);
}
.coa-bar-act{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.coa-dl{
  font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.06em;
  text-transform:uppercase;text-decoration:none;color:var(--ink);
  background:var(--action);padding:8px 12px;border-radius:2px;
}
.coa-dl:hover{filter:brightness(.94)}
.coa-x{
  font:inherit;font-size:1rem;line-height:1;color:var(--ink-2);cursor:pointer;
  background:none;border:1px solid var(--rule);border-radius:2px;
  width:34px;height:34px;display:grid;place-items:center;
}
.coa-x:hover{color:var(--ink);border-color:var(--ink-2)}

.coa-doc{position:relative;flex:1 1 auto;min-height:0;background:var(--enamel)}
.coa-doc iframe{position:relative;z-index:1;width:100%;height:100%;border:0;display:block}
.coa-fallback{
  position:absolute;inset:0;z-index:0;margin:0;display:grid;place-content:center;
  text-align:center;padding:24px;font-size:.9rem;color:var(--ink-2);
}

@media (max-width:760px){
  .coa-view{padding:0}
  .coa-sheet{max-width:none;height:100%;border:0;border-radius:0}
  .coa-bar-t{font-size:.84rem}
}
@media print{.coa-view{display:none}}

/* ══════════════════════════════════════════════════════════════
   FOOTER NAV — site policy and information pages
   ══════════════════════════════════════════════════════════════ */
.foot-nav{
  display:flex;flex-wrap:wrap;gap:2px 22px;margin:0 0 14px;
  font-family:var(--mono);font-size:.68rem;font-weight:500;
  letter-spacing:.07em;text-transform:uppercase;
}
.foot-nav a{
  color:#9AA3A0;text-decoration:none;border-bottom:1px solid #40474A;padding-block:6px;
}
.foot-nav a:hover{color:var(--stock);border-bottom-color:var(--stock)}
.foot-row a{color:#9AA3A0;text-decoration:none;border-bottom:1px solid #40474A}
.foot-row a:hover{color:var(--stock);border-bottom-color:var(--stock)}

/* ══════════════════════════════════════════════════════════════
   INFORMATION PAGES — about, methodology, policies
   ══════════════════════════════════════════════════════════════ */
.doc-hero{padding:54px 0 8px;max-width:62ch}
.doc-hero .h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.02;margin-bottom:18px}
.doc-hero .lede{max-width:58ch;margin:0}
.doc-stamp{
  display:flex;flex-wrap:wrap;gap:6px 22px;margin-top:24px;padding-top:16px;
  border-top:1px solid var(--rule);
  font-family:var(--mono);font-size:.67rem;font-weight:500;
  letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);
}
.doc .sec:first-of-type{padding-top:44px}
.doc .prose{max-width:70ch}
.doc .prose+.prose{margin-top:1.05em}
.doc .prose ul,.doc .prose ol{max-width:70ch;padding-left:22px;margin:0 0 1.05em}
.doc .prose li{font-size:1.02rem;margin-bottom:.5em}
.doc .prose li:last-child{margin-bottom:0}
.ph{
  background:var(--action);color:var(--ink);padding:1px 5px;border-radius:2px;
  font-family:var(--mono);font-size:.84em;font-weight:500;
}
.mailto{font-family:var(--mono);font-size:.94em;font-weight:500}