/*
Theme Name: The Ancient BioChain
Theme URI: https://www.theancientbiochain.com
Author: The BioChain
Description: Custom theme for The Ancient BioChain — a research initiative of The BioChain. Built to match the approved design reference exactly; do not redesign.
Version: 1.0
Text Domain: ancient-biochain
*/

:root{
  /* Matches The BioChain's own brand palette and design tokens
     (thebiochain.com) exactly — deep ink, bold accent green, Raleway,
     6px/14px radius scale — applied here as a "negative": white/light
     background instead of dark, so the two sites read as sisters. */
  --ink:#020119;
  --ink-2:#0A3652;
  --mint:#00ED99;
  --mint-2:#33F1AB;
  --mint-dark:#067a4d;
  --paper:#ffffff;
  --white:#fff;
  --muted:#64717c;
  --line:#d9dcd9;
  --night:#020119;
  --radius-sm:6px;
  --radius:14px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Raleway,Arial,sans-serif;font-weight:500;line-height:1.55}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.eyebrow{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--mint-dark);font-weight:700}
.btn{display:inline-flex;align-items:center;gap:14px;background:var(--mint);color:var(--ink);padding:11px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;transition:.2s ease;border:0;cursor:pointer}
.btn:hover{transform:translateY(-1px);background:var(--mint-2)}
.btn .arrow{color:currentColor;font-size:20px;line-height:1}
.text-link .arrow{color:var(--mint);font-size:20px;line-height:1}
.text-link{display:inline-flex;gap:12px;align-items:center;border-bottom:2px solid var(--mint);padding-bottom:5px;text-transform:uppercase;font-size:12px;font-weight:700}

header.site-header{position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:1px solid var(--line);padding:22px 0}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{line-height:1;display:block}
.brand img{height:42px;width:auto;display:block}
.nav-right{display:flex;align-items:center;gap:40px}
.menu{display:flex;align-items:center;gap:32px;font-size:14px;font-weight:700;text-transform:uppercase;list-style:none;margin:0;padding:0}
.menu li{margin:0}
.menu a{position:relative;padding:10px 0;display:inline-block}
.menu a.active:after,.menu li.current-menu-item a:after{content:"";position:absolute;left:0;right:65%;bottom:0;height:2px;background:var(--mint)}
.nav-cta{padding:13px 18px}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.menu-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0}

.hero{padding:72px 0 80px;border-bottom:1px solid var(--line);background:#ffffff}
.hero-grid{display:grid;grid-template-columns:0.85fr 1.2fr;gap:56px;align-items:center}
h1{font-size:48px;line-height:1.08;letter-spacing:-.035em;font-weight:500;margin:0 0 22px}
h1 .dot{color:var(--mint)}
.hero-copy{max-width:420px;color:#536272;font-size:15px;margin-bottom:29px}
.hero-graphic{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:5/4;background:linear-gradient(135deg,var(--ink) 0%,var(--ink-2) 100%);box-shadow:0 18px 40px -20px rgba(2,1,25,.35)}
.hero-graphic img{width:100%;height:100%;object-fit:cover;filter:grayscale(.65) contrast(.95)}
.hero-graphic .network{position:absolute;inset:0;opacity:.85}
.hero-graphic .network svg{width:100%;height:100%}
.hero-ctas{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.btn-outline{display:inline-flex;align-items:center;gap:14px;background:transparent;color:var(--ink);padding:10px 19px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;border:1px solid var(--line);transition:.2s ease}
.btn-outline:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-outline .arrow{color:currentColor;font-size:20px;line-height:1}

/* "What is The BioChain" — a variant of thebiochain.com's own top module,
   rendered in the parent brand's true dark palette (this site is otherwise
   a light "negative" of it) so it reads as a deliberate sister-site embed. */
.biochain-intro{background:linear-gradient(135deg,var(--ink) 0%,var(--ink-2) 100%);padding:76px 0;border-bottom:1px solid var(--line)}
.biochain-intro-inner{max-width:720px}
.biochain-intro .eyebrow{color:var(--mint)}
.biochain-intro h2{color:#fff;font-size:34px;line-height:1.15;font-weight:500;margin:12px 0 20px}
.biochain-intro p{color:#c8d0d6;font-size:16px;max-width:600px;margin:0 0 18px}
.biochain-intro .tagline{color:#fff;font-size:16px;font-weight:700;margin:0 0 32px}
.biochain-intro .hero-ctas .btn-outline{color:#fff;border-color:rgba(255,255,255,.35)}
.biochain-intro .hero-ctas .btn-outline:hover{border-color:#fff}

/* simple inner-page header (no photographic hero) */
.page-header{padding:56px 0 44px}
.page-header .eyebrow{display:block;margin-bottom:16px}
.page-header h1{font-size:40px}
.page-header p{color:#536272;font-size:17px}

.manifesto{border-bottom:1px solid var(--line);padding:32px 0;text-align:center}
.manifesto p{margin:0 auto;font-size:17px;color:var(--muted)}

section{padding:28px 0}
.focus{text-align:center;border-bottom:1px solid var(--line);padding-bottom:34px}
.focus h2,.start h2{font-size:30px;line-height:1.18;font-weight:500;letter-spacing:-.025em;margin:7px 0 14px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:16px}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px 22px;min-height:230px;background:rgba(255,255,255,.23)}
.icon-disc{width:58px;height:58px;background:var(--ink);border-radius:50%;display:grid;place-items:center;margin:0 auto 14px;color:var(--mint)}
.icon-disc svg{width:30px;height:30px;stroke:currentColor;fill:none;stroke-width:1.8}
.card h3{font-size:18px;line-height:1.15;font-weight:500;margin:0 0 12px}
.card p{margin:0;color:#67727e;font-size:13px}

.start{border-bottom:1px solid var(--line);padding:16px 0}
.start-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:54px;align-items:center}
.start-copy{padding:20px 0 30px}
.start-copy p{font-size:13px;color:#68737e;max-width:340px;margin:0 0 20px}
.feature{min-height:320px;border-radius:16px;overflow:hidden;position:relative;background-size:cover;background-position:center;display:flex;align-items:flex-start;padding:30px}
.feature:after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(2,20,28,.95) 0%,rgba(2,20,28,.9) 38%,rgba(2,20,28,.5) 66%,rgba(2,20,28,.16) 100%)}
.feature-copy{position:relative;z-index:2;color:#fff;width:48%}
.feature-copy .eyebrow{color:var(--mint)}
.feature-copy h3{font-size:29px;font-weight:500;margin:10px 0 12px}
.feature-copy p{font-size:13px;color:#e3e8e6}
.feature-copy .text-link{margin-top:15px;color:#fff}

.future-strip{padding:24px 0;border-bottom:1px solid var(--line)}
.future-inner{display:grid;grid-template-columns:66px 1fr auto;gap:22px;align-items:center;max-width:920px;margin:auto}
.calendar{width:50px;height:50px;border-radius:50%;background:#eceeea;display:grid;place-items:center}
.calendar svg{width:25px;height:25px;stroke:var(--ink);fill:none;stroke-width:1.8}
.future-copy strong{display:block;font-size:18px;font-weight:500}
.future-copy span{font-size:12px;color:#68737e}

footer.site-footer{background:radial-gradient(circle at 75% 20%,#0A3652 0%,#020119 70%);color:#fff;padding:36px 0 18px}
.footer-grid{display:grid;grid-template-columns:1.35fr .72fr .72fr 1.45fr;gap:44px;align-items:start}
.footer-logo img{height:38px;filter:brightness(0) invert(1)}
.footer-tag{font-size:11px;color:#9fb0bc;margin-top:14px}
.footer-title{color:var(--mint);font-size:11px;text-transform:uppercase;letter-spacing:.15em;margin-bottom:10px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links a,.contact-line{display:block;color:#c2ccd3;font-size:11px;margin:7px 0}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:32px;height:32px;border:1px solid var(--mint-dark);border-radius:50%;display:grid;place-items:center;color:var(--mint);font-size:12px}
.copyright{margin-top:28px;border-top:1px solid rgba(255,255,255,.08);padding-top:15px;text-align:center;color:#8093a0;font-size:10px}

/* generic content sections used on inner pages */
.content-section{padding:56px 0;border-bottom:1px solid var(--line)}
.content-section p{color:var(--muted);font-size:17px}
.content-section .prose{color:var(--ink);font-size:15px}
.content-section .prose p{color:var(--ink);font-size:15px}

/* ---- Neil (design) review pass, 2026-09 — narrower text column paired
   with a supporting image on copy-heavy sections; placeholders until
   real photography/graphics are supplied. ---- */
.content-row{display:grid;grid-template-columns:.85fr .75fr;gap:48px;align-items:start}
.content-row .content-copy{max-width:480px}
.content-row .content-copy p{color:var(--muted);font-size:17px}
.image-placeholder{border-radius:var(--radius);min-height:280px;background:repeating-linear-gradient(135deg,#eef1ee,#eef1ee 10px,#e4e8e4 10px,#e4e8e4 20px);display:flex;align-items:center;justify-content:center;text-align:center;padding:20px;border:1px dashed var(--line)}
.image-placeholder span{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#8b978f;font-weight:700}
@media(max-width:860px){.content-row{grid-template-columns:1fr}}

/* hero second line, highlighted in the accent colour */
h1 .accent-line{color:var(--mint)}

/* "What is The BioChain" panel — decorative node-cluster graphic */
.biochain-intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.biochain-intro-graphic{opacity:.9}
.biochain-intro-graphic svg{width:100%;height:auto}
@media(max-width:900px){.biochain-intro-grid{grid-template-columns:1fr}.biochain-intro-graphic{display:none}}

/* Phase 1 feature panel — decorative loop graphic (shown only without a
   custom Customizer image) */
.feature-graphic{position:absolute;right:26px;top:50%;transform:translateY(-50%);width:150px;height:150px;z-index:2;opacity:.9}
.feature-graphic svg{width:100%;height:100%}
@media(max-width:760px){.feature-graphic{display:none}}

/* Future Plans phase cards — icon */
#roadmap .cards{text-align:left}
#roadmap .card h3{font-size:17px}

/* About / Research & Provenance page content (DB-stored, patched via
   patch-neil-review-v1.php) */
.page-cta-row{display:flex;gap:16px;flex-wrap:wrap;margin:24px 0 0}
.about-biochain-row{display:grid;grid-template-columns:.75fr 1.15fr;gap:40px;align-items:center;margin-top:48px;padding-top:40px;border-top:1px solid var(--line)}
.about-biochain-copy h2{font-size:24px;font-weight:500;margin:0 0 14px}
@media(max-width:860px){.about-biochain-row{grid-template-columns:1fr}}

@media(max-width:900px){
  header.site-header{padding:18px 0}
  .menu{display:none}
  .menu-toggle{display:block}
  .hero{padding:40px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-graphic{aspect-ratio:16/10}
  h1{font-size:42px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .start-grid{grid-template-columns:1fr}
  .biochain-intro{padding:52px 0}
  .biochain-intro h2{font-size:27px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-header{padding:40px 0 30px}
  .menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 24px 16px;text-align:left}
  .menu.is-open{display:flex}
  .menu li{width:100%}
  .menu a{display:block;padding:12px 0}
  .nav-cta{display:none}
}
@media(max-width:580px){
  .wrap{width:min(100% - 28px,var(--max))}
  .cards{grid-template-columns:1fr}
  .future-inner{grid-template-columns:50px 1fr}
  .future-inner .btn{grid-column:1/-1;justify-self:start}
  .footer-grid{grid-template-columns:1fr}
  h1{font-size:36px}
  .brand strong{font-size:23px}
}

/* ============ Strata (blog): cards, filter chips, pagination ============ */
.cat-filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.cat-chip{border:1px solid var(--line);border-radius:999px;padding:8px 18px;font-size:13px;font-weight:500;color:var(--muted)}
.cat-chip.active,.cat-chip:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.article-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
/* Flex column with the meta pushed to the foot: titles and descriptions
   vary in length, so otherwise the date sits at a different height in
   every card on the row. */
.article-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;transition:.2s ease}
.article-card:hover{border-color:var(--mint-dark);transform:translateY(-2px)}
.article-card-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--mint-dark);margin-bottom:10px}
.article-card-title{font-size:17px;font-weight:500;line-height:1.3;margin:0 0 10px}
.article-card-desc{font-size:13px;color:#67727e;margin:0 0 14px}
.article-card-meta{margin-top:auto;padding-top:4px;font-size:11px;color:#94a0aa;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}
.blog-pagination{display:flex;justify-content:center;gap:10px;margin-top:36px}
.blog-pagination .page-numbers{border:1px solid var(--line);border-radius:8px;padding:8px 14px;font-size:12px;font-weight:700}
.blog-pagination .page-numbers.current{background:var(--ink);color:#fff;border-color:var(--ink)}
@media(max-width:900px){.article-cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:580px){.article-cards{grid-template-columns:1fr}}

/* ============ Single article ============ */
.page-header .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-top:14px}
.share-row{display:flex;align-items:center;gap:10px;margin-top:20px}
.share-btn{width:34px;height:34px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--ink);background:none;cursor:pointer}
.share-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.share-copied{font-size:11px;color:var(--mint-dark);font-weight:700;text-transform:uppercase}
.article-hero{margin:0 auto 36px;border-radius:var(--radius);overflow:hidden;max-height:420px}
.article-hero img{width:100%;height:100%;max-height:420px;object-fit:cover;display:block}
/* Article layout: prose + "On this page" sidebar — matches thebiochain.com's
 * own blog article-toc exactly, colours reversed for our light theme. */
.article-body{display:grid;grid-template-columns:1fr 260px;gap:48px;align-items:start}
.article-sidebar{position:sticky;top:24px}
.article-toc{background:rgba(2,1,25,.03);border:1px solid var(--line);border-radius:6px;padding:20px 24px}
.article-toc-label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.07em;font-weight:600;margin:0 0 10px}
.article-toc ol{margin:0;padding-left:18px;display:grid;gap:8px}
.article-toc a{font-size:14px;color:var(--ink)}
.article-toc a:hover,.article-toc a.active{color:var(--mint-dark)}
@media(max-width:900px){.article-body{grid-template-columns:1fr}.article-sidebar{position:static}}
.key-takeaways{margin:36px 0;padding:22px 24px;background:rgba(25,215,155,.07);border:1px solid rgba(25,215,155,.35);border-radius:var(--radius)}
.key-takeaways-title{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--mint-dark);margin:0 0 12px}
.key-takeaways ul{margin:0;padding-left:20px}
.key-takeaways li{margin-bottom:8px;font-size:14px}
.faq-block{margin:36px 0}
.faq-title{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.faq-item{border-bottom:1px solid var(--line);padding:16px 0}
.faq-item summary{cursor:pointer;font-weight:600;font-size:15px;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:before{content:"+ ";color:var(--mint-dark)}
.faq-item[open] summary:before{content:"– "}
.faq-item p{margin:12px 0 0;color:var(--muted);font-size:14px}
.article-tags{margin-top:32px;padding-top:20px;border-top:1px solid var(--line);font-size:12px}
.article-tags span:first-child{text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-right:10px}
.article-tags a{display:inline-block;border:1px solid var(--line);border-radius:14px;padding:5px 12px;margin:0 6px 6px 0;color:var(--ink)}

/* ============ Request a Demo: form left, image right ============ */
.demo-layout{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:start;padding:64px 0 80px}
.demo-copy h1{font-size:38px;margin:0 0 14px}
.demo-layout .hero-copy{max-width:520px;margin-bottom:32px}
.demo-layout .hero-graphic{aspect-ratio:4/3}
@media(max-width:900px){.demo-layout{grid-template-columns:1fr;gap:32px;padding:40px 0 56px}}

/* ============ Contact form — matches thebiochain.com/request-a-demo/
 * exactly (verified against its live computed styles): grid form, a
 * paired top row, uppercase 12px labels, 2px bordered fields. ========= */
.contact-form{display:grid;gap:20px;max-width:640px;margin-top:8px}
.contact-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.contact-form label{display:block;font-size:12px;font-weight:500;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:8px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;background:#fff;border:2px solid var(--line);border-radius:var(--radius-sm);padding:12px 14px;color:var(--ink);font-family:inherit;font-size:15px;transition:border-color .2s}
.contact-form input:hover,.contact-form select:hover,.contact-form textarea:hover{border-color:#b9bfc2}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--mint)}
.contact-form textarea{min-height:150px;resize:vertical}
.contact-form .btn{padding:15px 28px;justify-self:start}
#abc-contact-status,#abc-demo-status{margin-top:4px;font-size:14px;color:var(--mint-dark);font-weight:600}
@media(max-width:640px){.contact-form .form-row{grid-template-columns:1fr}}

/* ============ Newsletter (footer + Strata) ============ */
.newsletter-form{display:flex;gap:10px}
.newsletter-form input{flex:1;border:1px solid var(--line);border-radius:6px;padding:12px 14px;font-family:inherit;font-size:14px}
.footer-newsletter{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1);padding:24px 0;margin:28px 0 0}
.footer-newsletter p{margin:4px 0 0;font-size:12px;color:#9fb0bc}
.footer-newsletter .newsletter-form input{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:#fff;min-width:220px}
.footer-newsletter .newsletter-form input::placeholder{color:#8093a0}
.newsletter-status{font-size:12px;color:var(--mint);margin:10px 0 0;min-height:1em}
@media(max-width:900px){.footer-newsletter{grid-template-columns:1fr}.footer-newsletter .newsletter-form{flex-wrap:wrap}}

/* ============ Legal page ============ */
.legal-nav{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.legal-nav a{font-size:13px;font-weight:500;color:var(--mint-dark);border:1px solid var(--line);border-radius:999px;padding:8px 18px}
.legal-doc{margin-bottom:48px;scroll-margin-top:24px}
.legal-doc h2{font-size:24px;margin:0 0 18px}
.legal-doc h3{font-size:16px;margin:28px 0 10px}
.legal-doc p,.legal-doc li{color:var(--muted);font-size:14px;line-height:1.7}
.legal-doc ul{padding-left:20px}

/* ============ Article extras: lede + evidence-chain diagram ============ */
.prose a{color:var(--mint-dark);text-decoration:underline;text-underline-offset:2px}
.prose a:hover{color:var(--ink)}
.prose .lede{font-size:17px;color:var(--muted);font-style:italic;margin-bottom:28px}
.chain-diagram{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;line-height:2;background:#fafbfa;color:var(--ink);border:1px solid var(--line);border-left:3px solid var(--mint);padding:18px 22px;border-radius:8px;white-space:normal;word-spacing:2px;margin:24px 0}


/* ===== The five-step model, applied to ancient DNA =================
   Same model as thebiochain.com, rendered for this site's light theme.
   Step 04 carries the emphasis everywhere the model appears. */
.abc-steps-lede{color:var(--muted);font-size:17px;max-width:none;margin:14px 0 28px}
.abc-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.abc-step{border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;background:rgba(255,255,255,.23)}
.abc-step-num{display:block;font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--mint-dark);margin-bottom:8px}
.abc-step-name{font-size:16px;font-weight:500;margin:0 0 10px;color:var(--ink)}
.abc-step p{margin:0;color:#67727e;font-size:13px;line-height:1.6}
.abc-step--key{border-color:var(--mint-dark);background:rgba(0,237,153,.07)}
.abc-chain{margin-top:24px;border:1px solid var(--line);border-left:3px solid var(--mint-dark);border-radius:var(--radius);padding:24px 26px;background:rgba(0,237,153,.05)}
.abc-chain-label{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--mint-dark);font-weight:700;margin-bottom:12px}
.abc-chain-path{color:var(--ink) !important;font-weight:500;font-size:15px !important;margin:0 0 14px}
.abc-chain p{margin:0;color:var(--muted);font-size:15px;line-height:1.65}
@media (max-width:1000px){.abc-steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.abc-steps{grid-template-columns:1fr}.abc-chain-path{font-size:14px !important}}

/* Images placed into the former "Image pending" slots. The class carried no
   styling at all, so the images collapsed to zero height. Matches the Phase 1
   feature card: cover-cropped panel, same radius, same proportions. */
.content-image{border-radius:16px;overflow:hidden;min-height:320px;background:var(--line);}
.content-image img{display:block;width:100%;height:100%;min-height:320px;object-fit:cover;}
@media(max-width:860px){.content-image,.content-image img{min-height:220px;}}

/* Both "The BioChain" blocks originally held an inline SVG, which sized
   itself. Swapping in an <img> left it with no intrinsic box, so it
   collapsed to zero height. */
.biochain-intro-graphic img,
.about-biochain-graphic img{display:block;width:100%;height:auto;max-width:100%;}

/* Homepage media rows. The two panels below the Phase 1 card now use the same
   treatment as that card — same radius, same dark wash left-to-right, a short
   blurb and the row's link sitting on the image — rather than a bare photo.
   The image is an <img> rather than a background so it keeps its alt text. */
.content-row--media{grid-template-columns:.82fr 1.18fr;gap:54px;align-items:center}
.feature-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
@media(max-width:860px){
  .content-row--media{grid-template-columns:1fr}
  .feature-copy{width:74%}
}

/* ── FAQ (/faq/) ──────────────────────────────────────────────────────
   Grouped accordion. The same array behind these rows also feeds the
   FAQPage schema, so nothing here is decorative-only. */
.abc-faq{max-width:900px}
.abc-faq-group{margin-top:52px}
.abc-faq-group:first-child{margin-top:0}
.abc-faq-label{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--mint-dark);font-weight:700;padding-bottom:12px;border-bottom:2px solid var(--mint);margin-bottom:6px}
.abc-qa{border-bottom:1px solid var(--line)}
.abc-qa summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:16px;padding:18px 0;font-size:17px;font-weight:500;color:var(--ink);line-height:1.45}
.abc-qa summary::-webkit-details-marker{display:none}
.abc-qa summary:before{content:"+";flex:0 0 auto;width:22px;font-size:20px;line-height:1.2;color:var(--mint-dark);font-weight:400}
.abc-qa[open] summary:before{content:"\2212"}
.abc-qa summary:hover{color:var(--mint-dark)}
.abc-qa p{margin:0 0 20px 38px;color:var(--muted);font-size:16px;line-height:1.7;max-width:74ch}
@media(max-width:620px){
  .abc-qa summary{font-size:16px;gap:12px}
  .abc-qa p{margin-left:0;font-size:15px}
}

/* ── White paper (/provenance-layer-white-paper/) ─────────────────────
   The body text is the same fragment the print build uses, so these rules
   style markup that also has to survive being dropped into an A4 shell:
   h2/h3, .abc-table, .abc-chain, p.pull, sup.ref and ol.abc-refs. */
.paper-hero{background:var(--ink);color:#fff;padding:64px 0 60px}
.paper-hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:56px;align-items:start}
.paper-hero .eyebrow{color:var(--mint)}
.paper-hero h1{font-size:44px;line-height:1.14;font-weight:500;margin:18px 0 20px;letter-spacing:-.01em}
.paper-hero h1 .accent{color:var(--mint)}
.paper-sub{color:#c2ccd3;font-size:18px;line-height:1.6;max-width:56ch;margin:0 0 30px}
.paper-meta{display:flex;flex-wrap:wrap;gap:36px;margin:0 0 32px}
.paper-meta span{display:block;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:#8f9ba6;margin-bottom:6px}
.paper-meta strong{font-weight:600;font-size:15px}
/* The white paper hero carries both the download form and the contents,
   so the right-hand column holds two panels stacked rather than pushing
   the second one under the body copy. */
.paper-hero-grid > .paper-gate,
.paper-hero-grid > .paper-toc{grid-column:2}
.paper-hero-grid > .paper-toc{margin-top:-24px}
.paper-toc{border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:24px 26px}
.paper-toc-label{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--mint);font-weight:700;margin-bottom:14px}
.paper-toc ol{list-style:none;margin:0;padding:0}
.paper-toc li{border-top:1px solid rgba(255,255,255,.1)}
.paper-toc li:first-child{border-top:0}
.paper-toc a{display:block;padding:9px 0;color:#c2ccd3;font-size:14px;line-height:1.4}
.paper-toc a:hover{color:var(--mint)}
/* .btn-outline is built for the light pages; on the dark hero its ink
   text disappears into the background. */
.paper-hero .btn-outline{color:#fff;border-color:rgba(255,255,255,.38)}
.paper-hero .btn-outline:hover{border-color:var(--mint);color:var(--mint)}

.abc-paper{max-width:820px;margin:0 auto;padding:56px 0 8px}
.abc-paper section{scroll-margin-top:90px;margin-top:56px}
.abc-paper section:first-child{margin-top:0}
.abc-paper h2{font-size:30px;font-weight:500;line-height:1.2;margin:0 0 22px;padding-bottom:14px;border-bottom:2px solid var(--mint)}
.abc-paper h3{font-size:17px;font-weight:700;color:var(--ink-2);margin:34px 0 12px}
.abc-paper h2 + h3{margin-top:22px}
.abc-paper p{font-size:17px;line-height:1.72;color:var(--muted);margin:0 0 18px}
.abc-paper strong{color:var(--ink);font-weight:700}
.abc-paper a{color:var(--mint-dark);border-bottom:1px solid var(--line)}
.abc-paper ul,.abc-paper ol{margin:0 0 20px;padding-left:22px;color:var(--muted);font-size:17px;line-height:1.72}
.abc-paper li{margin-bottom:8px}
.abc-paper ul.abc-breaks{list-style:none;padding-left:0}
.abc-paper ul.abc-breaks li{position:relative;padding-left:24px;margin-bottom:12px}
.abc-paper ul.abc-breaks li:before{content:"";position:absolute;left:0;top:10px;width:9px;height:9px;border-radius:50%;background:var(--mint)}
.abc-paper p.pull{font-size:22px;line-height:1.45;font-weight:500;color:var(--ink);border-left:3px solid var(--mint);padding:4px 0 4px 26px;margin:30px 0}

.abc-paper table.abc-table{width:100%;border-collapse:collapse;margin:8px 0 30px;font-size:15px}
.abc-paper table.abc-table caption{caption-side:top;text-align:left;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--mint-dark);font-weight:700;padding-bottom:12px}
.abc-paper table.abc-table th{text-align:left;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:var(--ink);padding:12px 14px;font-weight:700;vertical-align:bottom}
.abc-paper table.abc-table td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.55;color:var(--muted)}
.abc-paper table.abc-table tbody tr:nth-child(even) td{background:#f6f8f8}
.abc-paper table.abc-table--wide{font-size:14px}
.abc-paper .table-scroll{overflow-x:auto;margin-bottom:30px}
.abc-paper .table-scroll table.abc-table{margin-bottom:0}

.abc-paper sup.ref{font-size:11px;font-weight:700;color:var(--mint-dark);padding-left:1px}
.abc-paper ol.abc-refs{font-size:14.5px;line-height:1.6}
.abc-paper ol.abc-refs li{margin-bottom:12px}
.abc-paper ol.abc-refs a{color:var(--muted);word-break:break-word}

.paper-end{max-width:820px;margin:0 auto;padding:12px 0 72px}
.paper-cite{border:1px solid var(--line);border-radius:var(--radius);background:#f6f8f8;padding:20px 24px;font-size:15px;line-height:1.6;color:var(--ink);margin-bottom:20px}
.paper-end p{color:var(--muted);font-size:16px;margin:0 0 26px}

@media(max-width:960px){
  .paper-hero-grid{grid-template-columns:1fr;gap:34px}
  .paper-hero h1{font-size:34px}
  .abc-paper{padding-top:40px}
  .abc-paper h2{font-size:25px}
  .abc-paper table.abc-table{font-size:14px}
  .abc-paper table.abc-table th,.abc-paper table.abc-table td{padding:10px}
  .abc-paper .table-scroll table.abc-table{min-width:620px}
}

/* ── Resources list ───────────────────────────────────────────────────
   One card per published resource. The featured card is the current
   flagship document; everything else sits in a plainer row below it. */
.abc-resources{display:grid;gap:26px;max-width:880px}
.abc-resource{border:1px solid var(--line);border-radius:var(--radius);padding:32px 34px;background:var(--paper)}
.abc-resource--feature{border-left:3px solid var(--mint);background:linear-gradient(180deg,rgba(0,237,153,.05) 0%,rgba(0,237,153,0) 60%)}
.abc-resource-kind{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--mint-dark);font-weight:700}
.abc-resource h2{font-size:27px;font-weight:500;line-height:1.22;margin:12px 0 12px}
.abc-resource-meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:16px}
.abc-resource-meta span{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.abc-resource-meta span + span:before{content:"\2022";margin-right:18px;color:var(--line)}
.abc-resource p{color:var(--muted);font-size:16px;line-height:1.7;margin:0 0 24px;max-width:66ch}
.abc-resource-actions{display:flex;flex-wrap:wrap;gap:14px}
@media(max-width:620px){
  .abc-resource{padding:26px 22px}
  .abc-resource h2{font-size:23px}
  .abc-resource-actions .btn,.abc-resource-actions .btn-outline{width:100%;justify-content:center}
}

/* ── Gated resource form (checklist page hero) ────────────────────────
   Sits in the dark hero beside the resource's description, so the fields
   are drawn light-on-dark rather than reusing the light-page form styles. */
.paper-gate{border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:26px 26px 22px}
.paper-gate label{display:block;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:#8f9ba6;margin:16px 0 7px;font-weight:600}
.paper-gate label:first-of-type{margin-top:0}
.paper-gate input[type=email],.paper-gate input[type=text]{
  width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius-sm);color:#fff;font:inherit;font-size:15px;padding:11px 13px;
}
.paper-gate input[type=email]:focus,.paper-gate input[type=text]:focus{outline:0;border-color:var(--mint);background:rgba(255,255,255,.1)}
.paper-gate label.paper-gate-check{display:flex;align-items:flex-start;gap:10px;margin:20px 0 6px;letter-spacing:0;text-transform:none;font-size:14px;line-height:1.5;color:#c2ccd3;font-weight:400}
.paper-gate-check input{margin-top:3px;accent-color:var(--mint)}
.paper-gate .btn{width:100%;justify-content:center;margin-top:18px}
.paper-gate-status{font-size:14px;color:var(--mint);margin:12px 0 0;min-height:1em}
.paper-gate-status:empty{margin:0}
.paper-gate-small{font-size:12.5px;line-height:1.55;color:#8f9ba6;margin:14px 0 0}
.paper-gate-small a{color:#c2ccd3;text-decoration:underline}
.paper-gate-done{font-size:16px;color:#fff;margin:0 0 18px}
#abc-resource-done .btn{width:100%;justify-content:center}

.checklist-intro{max-width:820px}
.checklist-intro h2{font-size:28px;font-weight:500;margin:14px 0 16px}
.checklist-intro p{color:var(--muted);font-size:17px;line-height:1.72;margin:0}
.checklist-intro a{color:var(--mint-dark);border-bottom:1px solid var(--line)}