/* =========================================================================
   GTX · Green Transitional Metals Pte. Ltd.
   Design System — Industrial Trust / Green Transition / Enterprise B2B 2026
   Reference language: Siemens Energy · Umicore · Sandvik · Johnson Matthey
   ========================================================================= */

/* ---------- Tokens ---------- */
:root {
  /* Palette */
  --bg:           #F7F8F5;
  --bg-alt:       #FFFFFF;
  --ink:          #0F2A22;   /* deep industrial green */
  --ink-soft:     #163A2E;
  --green:        #2E7D5F;   /* transition green — CTA + ESG */
  --green-dk:     #1F5A43;
  --copper:       #B56E3C;   /* materials anchor */
  --copper-dk:    #8F5428;
  --steel:        #4A5560;   /* labels / data */
  --steel-lt:     #7A838D;
  --carbon:       #1A1E22;   /* body on light */
  --bone:         #E8EAE6;   /* body on dark */
  --bone-dim:     #B8BDB5;
  --hair:         #D4D8D0;
  --hair-dk:      #243B32;

  /* Typography */
  --f-display: "Inter Tight", "Söhne", Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --f-sans:    Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --f-mono:    "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Rhythm */
  --maxw:        1280px;
  --maxw-hero:   1600px;
  --pad-x:       clamp(20px, 4vw, 64px);
  --rad:         2px;
  --rad-lg:      4px;

  /* Motion */
  --ease:        cubic-bezier(.2,.6,.2,1);
  --dur:         400ms;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:17px;
  line-height:1.65;
  color:var(--carbon);
  background:var(--bg);
  font-feature-settings:"ss01","cv11","tnum" 0;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--f-display);font-weight:600;letter-spacing:-0.01em;line-height:1.15;color:var(--ink)}
p{margin:0 0 1em 0}
hr{border:0;border-top:1px solid var(--hair);margin:48px 0}

/* ---------- Typography Scale ---------- */
.h-display{font-size:clamp(48px,6.2vw,92px);font-weight:600;letter-spacing:-0.025em;line-height:1.03}
.h-1{font-size:clamp(40px,4.6vw,64px);font-weight:600;letter-spacing:-0.02em;line-height:1.08}
.h-2{font-size:clamp(30px,3.2vw,44px);font-weight:600;letter-spacing:-0.015em;line-height:1.15}
.h-3{font-size:clamp(22px,2vw,28px);font-weight:600;letter-spacing:-0.01em;line-height:1.25}
.h-4{font-size:19px;font-weight:600;letter-spacing:-0.005em;line-height:1.35}
.lede{font-size:clamp(18px,1.4vw,22px);line-height:1.55;color:var(--steel);max-width:62ch}
.lede.on-dark{color:var(--bone)}
.kicker{font-family:var(--f-mono);font-size:12px;letter-spacing:0.18em;text-transform:uppercase;color:var(--green);font-weight:500;display:inline-block}
.kicker.on-dark{color:var(--bone-dim)}
.kicker.copper{color:var(--copper)}
.mono{font-family:var(--f-mono);font-size:13px;letter-spacing:0.05em;color:var(--steel)}
.mono.on-dark{color:var(--bone-dim)}
.num{font-family:var(--f-display);font-weight:600;font-variant-numeric:tabular-nums}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad-x)}
.wrap-hero{max-width:var(--maxw-hero);margin:0 auto;padding:0 var(--pad-x)}
.section{padding:clamp(64px,9vw,128px) 0}
.section.compact{padding:clamp(48px,6vw,80px) 0}
.section.dark{background:var(--ink);color:var(--bone)}
.section.dark h1,.section.dark h2,.section.dark h3,.section.dark h4{color:#fff}
.section.bleed-dark{background:var(--ink);color:var(--bone)}
.grid{display:grid;gap:24px}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-7{grid-template-columns:repeat(7,minmax(0,1fr))}
@media (max-width:1024px){.g-4{grid-template-columns:repeat(2,1fr)}.g-7{grid-template-columns:repeat(3,1fr)}.g-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.g-2,.g-3,.g-4,.g-7{grid-template-columns:1fr}}

.flex{display:flex}
.items-center{align-items:center}
.justify-between{justify-content:space-between}
.gap-8{gap:8px}.gap-16{gap:16px}.gap-24{gap:24px}.gap-32{gap:32px}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.mt-48{margin-top:48px}.mt-64{margin-top:64px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}.mb-48{margin-bottom:48px}.mb-64{margin-bottom:64px}
.text-center{text-align:center}

/* ---------- Header / Navigation ---------- */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(247,248,245,.82);
  backdrop-filter:saturate(140%) blur(14px);
  -webkit-backdrop-filter:saturate(140%) blur(14px);
  border-bottom:1px solid var(--hair);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;height:72px;max-width:var(--maxw-hero);margin:0 auto;padding:0 var(--pad-x)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-mark{width:34px;height:34px;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-name{font-family:var(--f-display);font-weight:700;font-size:20px;letter-spacing:-0.02em;color:var(--ink)}
.brand-sub{font-family:var(--f-mono);font-size:10px;letter-spacing:0.14em;color:var(--steel);text-transform:uppercase;margin-top:3px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--ink);position:relative;padding:6px 0}
.nav-links a:hover{color:var(--green)}
.nav-links a.has-child::after{content:"";display:inline-block;width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);margin-left:6px;opacity:.6}
.nav-cta{display:inline-flex;align-items:center;gap:8px;background:var(--green);color:#fff;padding:11px 20px;border-radius:var(--rad);font-size:14px;font-weight:600;letter-spacing:-0.005em;transition:background .2s var(--ease),transform .2s var(--ease)}
.nav-cta:hover{background:var(--green-dk);color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--hair);border-radius:var(--rad)}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;right:0;height:1.5px;background:var(--ink)}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}
@media (max-width:1024px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--bg-alt);border-bottom:1px solid var(--hair);flex-direction:column;padding:16px var(--pad-x);gap:4px;align-items:stretch}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;border-bottom:1px solid var(--hair)}
  .nav-links a:last-child{border-bottom:0}
  .nav-toggle{display:flex}
  .nav-cta.desktop{display:none}
}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;font-size:15px;font-weight:600;letter-spacing:-0.005em;border-radius:var(--rad);transition:all .22s var(--ease);border:1px solid transparent;cursor:pointer}
.btn .arrow{transition:transform .22s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dk);color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px rgba(46,125,95,.22)}
.btn-secondary{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-secondary:hover{background:var(--ink);color:#fff}
.btn-ghost-dark{background:transparent;color:#fff;border-color:rgba(232,234,230,.35)}
.btn-ghost-dark:hover{background:rgba(255,255,255,.08);border-color:#fff}
.btn-copper{background:var(--copper);color:#fff}
.btn-copper:hover{background:var(--copper-dk);color:#fff}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:clamp(640px,86vh,880px);
  display:flex;align-items:flex-end;
  overflow:hidden;
  background:var(--ink);
  color:var(--bone);
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(15,42,34,.55) 0%, rgba(15,42,34,.88) 100%)}
.hero-bg svg, .hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-inner{position:relative;z-index:1;padding:80px 0 96px;max-width:var(--maxw-hero);margin:0 auto;width:100%;padding-left:var(--pad-x);padding-right:var(--pad-x)}
.hero h1{color:#fff;max-width:18ch;margin-top:20px}
.hero .lede{color:var(--bone);max-width:68ch;margin-top:28px}
.hero-cta{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px}

/* Compact hero for interior pages */
.hero-interior{min-height:auto;background:var(--ink);color:var(--bone);padding:clamp(88px,11vw,144px) 0 clamp(56px,7vw,96px)}
.hero-interior h1{color:#fff;max-width:20ch}
.hero-interior .lede{color:var(--bone);margin-top:24px}
.hero-interior .kicker{color:var(--copper)}
.hero-interior .breadcrumb{margin-bottom:20px}

/* ---------- Breadcrumbs ---------- */
.breadcrumb{font-family:var(--f-mono);font-size:12px;letter-spacing:0.08em;text-transform:uppercase;color:var(--bone-dim)}
.breadcrumb a{color:var(--bone-dim)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{margin:0 10px;opacity:.5}

/* ---------- Trust band ---------- */
.trust-band{background:#fff;border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);padding:28px 0}
.trust-strip{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:36px 48px}
.trust-strip .trust-label{font-family:var(--f-mono);font-size:11px;letter-spacing:0.18em;text-transform:uppercase;color:var(--steel-lt);width:100%;text-align:center;margin-bottom:10px}
.trust-strip .trust-item{font-family:var(--f-display);font-weight:500;font-size:15px;color:var(--steel);letter-spacing:-0.005em;opacity:.85;white-space:nowrap}

/* ---------- Cards ---------- */
.card{background:#fff;border:1px solid var(--hair);border-radius:var(--rad-lg);padding:28px;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);position:relative}
.card:hover{transform:translateY(-2px);box-shadow:0 10px 28px -10px rgba(15,42,34,.16);border-color:#c3c9be}
.card.dark{background:#163A2E;border-color:rgba(255,255,255,.08);color:var(--bone)}
.card.dark:hover{border-color:rgba(255,255,255,.2)}
.card .card-icon{width:44px;height:44px;border-radius:var(--rad);background:rgba(46,125,95,.1);display:flex;align-items:center;justify-content:center;margin-bottom:20px;color:var(--green)}
.card .card-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.5}
.card h3{font-size:19px;margin-bottom:8px}
.card .card-meta{font-family:var(--f-mono);font-size:11px;color:var(--steel-lt);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:10px}
.card .card-cta{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13.5px;font-weight:600;color:var(--green);font-family:var(--f-display)}
.card .card-cta svg{transition:transform .2s var(--ease)}
.card:hover .card-cta svg{transform:translateX(3px)}

/* Card linked wrapper */
a.card{color:inherit}
a.card:hover{color:inherit}

/* ---------- Industry card grid ---------- */
.industry-card{padding:32px 28px;border:1px solid var(--hair);background:#fff;border-radius:var(--rad-lg);display:flex;flex-direction:column;gap:14px;transition:all .24s var(--ease);min-height:280px}
.industry-card:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:0 14px 34px -14px rgba(46,125,95,.22)}
.industry-card .top{display:flex;align-items:center;justify-content:space-between}
.industry-card .num-badge{font-family:var(--f-mono);font-size:11px;color:var(--steel-lt);letter-spacing:0.1em}
.industry-card .ic-icon{width:32px;height:32px;color:var(--green)}
.industry-card h3{font-size:20px;margin-top:8px}
.industry-card p{color:var(--steel);font-size:15px;line-height:1.55;flex:1}
.industry-card .foot{display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--hair);margin-top:auto}
.industry-card .tam{font-family:var(--f-display);font-weight:600;color:var(--ink);font-size:15px}
.industry-card .tam span{color:var(--copper)}
.industry-card .ic-cta{font-size:13px;color:var(--green);font-weight:600;letter-spacing:-0.005em}

/* ---------- Stats / Data pills ---------- */
.stat{display:flex;flex-direction:column;gap:4px;padding:24px 0}
.stat-value{font-family:var(--f-display);font-weight:600;font-size:clamp(36px,4vw,56px);line-height:1;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-0.025em}
.stat.on-dark .stat-value{color:#fff}
.stat-label{font-family:var(--f-mono);font-size:12px;letter-spacing:0.14em;text-transform:uppercase;color:var(--steel-lt);margin-top:8px}
.stat.on-dark .stat-label{color:var(--bone-dim)}
.stat-desc{font-size:14px;color:var(--steel);margin-top:6px;max-width:28ch}
.stat.on-dark .stat-desc{color:var(--bone-dim)}

.data-pills{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.data-pill{background:rgba(255,255,255,.06);border:1px solid rgba(232,234,230,.18);padding:12px 20px;border-radius:999px;font-family:var(--f-mono);font-size:13px;letter-spacing:0.04em;color:#fff}
.data-pill .num{color:var(--copper);font-family:var(--f-display);font-weight:600;font-size:15px;margin-right:6px}

/* ---------- Quote / ESG band ---------- */
.esg-band{background:var(--ink);color:var(--bone);padding:clamp(80px,11vw,144px) 0;position:relative;overflow:hidden}
.esg-band::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--copper),transparent)}
.esg-quote{font-family:var(--f-display);font-weight:500;font-style:italic;font-size:clamp(28px,3.4vw,48px);line-height:1.25;color:#fff;max-width:24ch;letter-spacing:-0.015em}
.esg-quote::before{content:"\201C";color:var(--copper);margin-right:4px}
.esg-quote::after{content:"\201D";color:var(--copper)}

/* ---------- Spec tables ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:15px}
.spec-table th,.spec-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--hair)}
.spec-table th{font-family:var(--f-mono);font-size:11.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--steel-lt);font-weight:500;background:#fff;width:40%}
.spec-table td{color:var(--carbon);font-weight:500}
.spec-table td.num-cell{font-family:var(--f-display);font-variant-numeric:tabular-nums;font-weight:600;color:var(--ink)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}

/* ---------- Leadership ---------- */
.leader{display:flex;flex-direction:column;gap:16px}
.leader-photo{aspect-ratio:4/5;background:linear-gradient(135deg,#d4d8d0 0%,#a9b0a5 100%);border-radius:var(--rad-lg);overflow:hidden;position:relative}
.leader-photo svg{width:100%;height:100%}
.leader-name{font-family:var(--f-display);font-weight:600;font-size:20px;letter-spacing:-0.01em;color:var(--ink)}
.leader-role{font-family:var(--f-mono);font-size:12px;letter-spacing:0.1em;text-transform:uppercase;color:var(--green);margin-top:4px}
.leader-bio{font-size:15px;line-height:1.6;color:var(--steel);margin-top:10px}

/* ---------- Bar charts ---------- */
.bar-row{display:grid;grid-template-columns:180px 1fr 80px;align-items:center;gap:20px;padding:16px 0;border-bottom:1px solid var(--hair)}
.bar-label{font-size:14px;font-weight:500;color:var(--ink)}
.bar-track{height:10px;background:#E8EAE6;border-radius:999px;overflow:hidden;position:relative}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--green),var(--copper));border-radius:999px;transform-origin:left;transform:scaleX(0);transition:transform .9s cubic-bezier(.22,.8,.3,1)}
.bar-row.visible .bar-fill{transform:scaleX(var(--scale,1))}
.bar-value{font-family:var(--f-display);font-weight:600;font-variant-numeric:tabular-nums;color:var(--ink);font-size:15px;text-align:right}

/* ---------- Forms ---------- */
.form{display:grid;gap:22px;max-width:720px}
.form.two-col{grid-template-columns:1fr 1fr}
.form.two-col .full{grid-column:1/-1}
@media (max-width:640px){.form.two-col{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-family:var(--f-mono);font-size:11.5px;letter-spacing:0.1em;text-transform:uppercase;color:var(--steel);font-weight:500}
.field input,.field select,.field textarea{
  background:#fff;border:1px solid var(--hair);border-radius:var(--rad);padding:14px 16px;font-size:15.5px;color:var(--carbon);
  transition:border-color .15s var(--ease),box-shadow .15s var(--ease);
  font-family:var(--f-sans);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(46,125,95,.15)}
.field textarea{resize:vertical;min-height:140px}
.field .hint{font-size:12.5px;color:var(--steel-lt)}
.honeypot{position:absolute;left:-10000px;width:1px;height:1px;opacity:0;pointer-events:none}
.form-status{margin-top:16px;padding:14px 18px;border-radius:var(--rad);font-size:14.5px;display:none}
.form-status.ok{display:block;background:rgba(46,125,95,.1);border:1px solid var(--green);color:var(--green-dk)}
.form-status.err{display:block;background:rgba(181,110,60,.1);border:1px solid var(--copper);color:var(--copper-dk)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--bone);padding:80px 0 36px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:40px;margin-bottom:56px}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr}}
.footer-col h4{font-family:var(--f-mono);font-size:11.5px;letter-spacing:0.14em;text-transform:uppercase;color:var(--bone-dim);font-weight:500;margin-bottom:18px;color:#fff}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:var(--bone);font-size:14.5px;transition:color .15s var(--ease)}
.footer-col a:hover{color:var(--copper)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:var(--bone-dim)}
.footer-mission{font-size:14.5px;color:var(--bone-dim);line-height:1.6;margin-top:20px;max-width:36ch}
.footer-net{display:flex;flex-direction:column;gap:10px}
.footer-net .net-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--bone);transition:color .15s var(--ease)}
.footer-net .net-item:hover{color:var(--copper)}
.footer-net .net-item .site-no{font-family:var(--f-mono);font-size:10.5px;color:var(--copper);letter-spacing:0.1em}
.footer-bottom{padding-top:32px;border-top:1px solid var(--hair-dk);display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-start}
.footer-legal{font-family:var(--f-mono);font-size:11px;letter-spacing:0.06em;color:var(--bone-dim);line-height:1.6;max-width:68ch}
.footer-ids{font-family:var(--f-mono);font-size:11px;color:var(--bone-dim);letter-spacing:0.06em;display:flex;flex-wrap:wrap;gap:18px}
.footer-ids span{display:inline-flex;align-items:center;gap:6px}
.footer-ids strong{color:#fff;font-weight:600}

/* ---------- Schema / diagram components ---------- */
.structure-diagram{background:#fff;border:1px solid var(--hair);border-radius:var(--rad-lg);padding:48px;margin:40px 0}
.struct-node{padding:20px 24px;border:1.5px solid var(--ink);border-radius:var(--rad);background:#fff;text-align:center;position:relative}
.struct-node.accent{border-color:var(--green);background:rgba(46,125,95,.06)}
.struct-node .node-label{font-family:var(--f-mono);font-size:10.5px;letter-spacing:0.14em;text-transform:uppercase;color:var(--steel-lt);margin-bottom:6px}
.struct-node .node-title{font-family:var(--f-display);font-weight:600;font-size:15px;color:var(--ink)}
.struct-node .node-meta{font-family:var(--f-mono);font-size:11px;color:var(--steel);margin-top:4px}

/* ---------- Article / long-form ---------- */
.article{max-width:760px;margin:0 auto}
.article h2{margin:48px 0 16px;font-size:clamp(26px,2.4vw,34px)}
.article h3{margin:36px 0 12px;font-size:22px}
.article p{font-size:17px;line-height:1.72;color:var(--carbon)}
.article ul,.article ol{padding-left:22px;margin:0 0 24px}
.article li{margin:10px 0;line-height:1.65}
.article blockquote{margin:32px 0;padding:24px 28px;border-left:3px solid var(--green);background:#fff;border-radius:0 var(--rad) var(--rad) 0;font-style:italic;color:var(--ink);font-size:19px;line-height:1.5}
.article .figure{margin:40px 0;background:#fff;border:1px solid var(--hair);border-radius:var(--rad-lg);padding:28px}
.article .figure .caption{font-family:var(--f-mono);font-size:12px;color:var(--steel-lt);letter-spacing:0.08em;text-transform:uppercase;margin-top:14px;text-align:center}
.article .citation{font-size:14px;color:var(--steel);border-left:2px solid var(--copper);padding-left:14px;margin:24px 0}
.article .citation a{color:var(--copper);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}

/* ---------- FAQ accordion ---------- */
.faq{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--hair)}
.faq-item{border-bottom:1px solid var(--hair)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:24px 0;cursor:pointer;gap:24px;width:100%;text-align:left;background:none;border:0;font-family:var(--f-display);font-weight:600;font-size:18px;color:var(--ink);letter-spacing:-0.005em}
.faq-q:hover{color:var(--green)}
.faq-q .faq-icon{width:20px;height:20px;flex-shrink:0;position:relative}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{content:"";position:absolute;background:currentColor;transition:transform .25s var(--ease)}
.faq-q .faq-icon::before{left:0;right:0;top:50%;height:1.5px;margin-top:-0.75px}
.faq-q .faq-icon::after{top:0;bottom:0;left:50%;width:1.5px;margin-left:-0.75px}
.faq-item[open] .faq-q .faq-icon::after{transform:rotate(90deg)}
.faq-a{padding:0 0 28px;color:var(--steel);font-size:16px;line-height:1.7;max-width:80ch}
details.faq-item > summary{list-style:none}
details.faq-item > summary::-webkit-details-marker{display:none}

/* ---------- Ribbons / meta ---------- */
.ribbon{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;background:rgba(46,125,95,.1);color:var(--green-dk);font-family:var(--f-mono);font-size:11.5px;letter-spacing:0.08em;text-transform:uppercase;border-radius:var(--rad);font-weight:500}
.ribbon.copper{background:rgba(181,110,60,.12);color:var(--copper-dk)}
.ribbon.dark{background:rgba(15,42,34,.08);color:var(--ink)}

/* ---------- Two-col feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,96px);align-items:center}
@media (max-width:900px){.split{grid-template-columns:1fr}}
.split.alt-60-40{grid-template-columns:1.2fr 1fr}
@media (max-width:900px){.split.alt-60-40{grid-template-columns:1fr}}

/* ---------- Image placeholders (SVG scenes) ---------- */
.scene{width:100%;aspect-ratio:4/3;background:var(--ink);border-radius:var(--rad-lg);overflow:hidden;position:relative}
.scene svg{width:100%;height:100%;display:block}

/* ---------- Motion: fade-in on scroll ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}
.reveal-stagger > *{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal-stagger.in > *{opacity:1;transform:translateY(0)}
.reveal-stagger.in > *:nth-child(2){transition-delay:.06s}
.reveal-stagger.in > *:nth-child(3){transition-delay:.12s}
.reveal-stagger.in > *:nth-child(4){transition-delay:.18s}
.reveal-stagger.in > *:nth-child(5){transition-delay:.24s}
.reveal-stagger.in > *:nth-child(6){transition-delay:.30s}
.reveal-stagger.in > *:nth-child(7){transition-delay:.36s}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important}
  .reveal,.reveal-stagger > *{opacity:1;transform:none}
  .bar-fill{transform:scaleX(var(--scale,1)) !important;transition:none}
}

/* ---------- RTL ---------- */
html[dir="rtl"] .card .card-cta svg,
html[dir="rtl"] .btn .arrow{transform:scaleX(-1)}
html[dir="rtl"] .btn:hover .arrow{transform:scaleX(-1) translateX(4px)}
html[dir="rtl"] .card:hover .card-cta svg{transform:scaleX(-1) translateX(-3px)}

/* ---------- Print / accessibility ---------- */
.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:2px solid var(--green);outline-offset:3px;border-radius:2px}

/* ---------- News list ---------- */
.news-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--hair)}
.news-item{display:grid;grid-template-columns:180px 1fr auto;gap:32px;padding:28px 0;border-bottom:1px solid var(--hair);align-items:start;transition:background .2s var(--ease)}
.news-item:hover{background:rgba(46,125,95,.03)}
.news-date{font-family:var(--f-mono);font-size:12px;letter-spacing:0.08em;color:var(--steel-lt);text-transform:uppercase;padding-top:4px}
.news-title{font-family:var(--f-display);font-weight:600;font-size:20px;letter-spacing:-0.01em;color:var(--ink)}
.news-excerpt{font-size:15px;line-height:1.6;color:var(--steel);margin-top:8px}
.news-tag{font-family:var(--f-mono);font-size:11px;letter-spacing:0.1em;text-transform:uppercase;color:var(--green);padding:5px 10px;border:1px solid rgba(46,125,95,.3);border-radius:var(--rad);white-space:nowrap}
@media (max-width:768px){.news-item{grid-template-columns:1fr}.news-date{padding-top:0}}

/* ---------- Doc list ---------- */
.doc-list{display:grid;gap:12px}
.doc-item{display:flex;align-items:center;gap:20px;padding:22px 24px;background:#fff;border:1px solid var(--hair);border-radius:var(--rad-lg);transition:all .2s var(--ease)}
.doc-item:hover{border-color:var(--green);transform:translateX(2px)}
.doc-icon{width:40px;height:48px;flex-shrink:0;background:rgba(46,125,95,.1);border-radius:var(--rad);display:flex;align-items:center;justify-content:center;color:var(--green);font-family:var(--f-mono);font-size:10px;font-weight:600}
.doc-info{flex:1;min-width:0}
.doc-info strong{display:block;font-family:var(--f-display);font-weight:600;color:var(--ink);font-size:16px}
.doc-info span{display:block;font-size:13px;color:var(--steel-lt);margin-top:4px;font-family:var(--f-mono);letter-spacing:0.04em}
.doc-download{font-family:var(--f-display);font-weight:600;font-size:13px;color:var(--green);white-space:nowrap}

/* ---------- Tag list ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-family:var(--f-mono);font-size:11px;letter-spacing:0.08em;text-transform:uppercase;padding:5px 10px;border:1px solid var(--hair);border-radius:var(--rad);color:var(--steel)}

/* ---------- Dark section cards ---------- */
.section.dark .card{background:#163A2E;border-color:rgba(255,255,255,.08);color:var(--bone)}
.section.dark .card h3{color:#fff}
.section.dark .card p{color:var(--bone-dim)}
.section.dark .card .card-icon{background:rgba(46,125,95,.22);color:#fff}

/* ---------- Utilities ---------- */
.divider{height:1px;background:var(--hair);margin:48px 0}
.divider.dark{background:var(--hair-dk)}
.spacer-s{height:24px}.spacer-m{height:48px}.spacer-l{height:96px}
.maxw-60{max-width:60ch}
.maxw-72{max-width:72ch}
.text-muted{color:var(--steel)}
.text-copper{color:var(--copper)}
.text-green{color:var(--green)}

/* ---------- Table containers ---------- */
.table-wrap{background:#fff;border:1px solid var(--hair);border-radius:var(--rad-lg);overflow:hidden}

/* =========================================================================
   EXTENSIONS — research-authority layer, dark-mode, RTL, print, TOC, charts
   ========================================================================= */

/* ---------- Dark-mode tokens (data-theme="dark") ---------- */
:root[data-theme="dark"] {
  --bg:        #0b1410;
  --bg-alt:    #11201a;
  --ink:       #E8EAE6;
  --ink-soft:  #c9d2cc;
  --carbon:    #E8EAE6;
  --steel:     #A4ADB1;
  --steel-lt:  #7C868B;
  --bone:      #E8EAE6;
  --hair:      #1e2a24;
  --hair-dk:   #0a1511;
}
:root[data-theme="dark"] body { background: var(--bg); color: var(--carbon); }
:root[data-theme="dark"] .nav { background: rgba(11,20,16,0.82); border-bottom-color: rgba(255,255,255,0.06); }
:root[data-theme="dark"] .site-footer { background: #050a08; }
:root[data-theme="dark"] h1, :root[data-theme="dark"] h2, :root[data-theme="dark"] h3,
:root[data-theme="dark"] h4, :root[data-theme="dark"] h5, :root[data-theme="dark"] h6 { color: var(--bone); }
:root[data-theme="dark"] .card, :root[data-theme="dark"] .tile, :root[data-theme="dark"] .panel { background: #122018; border-color: #1e2a24; }
:root[data-theme="dark"] .industry-card { background: #122018; border-color: #1e2a24; }
:root[data-theme="dark"] hr { border-top-color: #1e2a24; }
:root[data-theme="dark"] .stat-value { color: var(--bone); }
:root[data-theme="dark"] .mono { color: var(--steel); }
:root[data-theme="dark"] input, :root[data-theme="dark"] textarea, :root[data-theme="dark"] select {
  background: #0b1410; border-color: #24332b; color: var(--bone);
}

/* ---------- Theme toggle button ---------- */
.theme-toggle {
  width: 36px; height: 36px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink); opacity: 0.72; transition: opacity .2s var(--ease), background .2s var(--ease);
  margin-left: 8px;
}
.theme-toggle:hover { opacity: 1; background: rgba(15,42,34,0.06); }
:root[data-theme="dark"] .theme-toggle { color: var(--bone); }
:root[data-theme="dark"] .theme-toggle:hover { background: rgba(255,255,255,0.06); }

/* ---------- Research article shell ---------- */
.article-shell {
  display: grid;
  grid-template-columns: 240px minmax(0,1fr);
  gap: 56px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 48px var(--pad-x) 96px;
}
.article-shell .article-aside { position: sticky; top: 96px; align-self: start; }
.article-shell article { max-width: 74ch; font-size: 18px; line-height: 1.72; }
.article-shell article h2 { font-size: clamp(24px,2.4vw,32px); margin-top: 48px; margin-bottom: 16px; padding-top: 8px; border-top: 1px solid var(--hair); }
.article-shell article h3 { font-size: 21px; margin-top: 32px; margin-bottom: 10px; }
.article-shell article p { margin-bottom: 1.2em; }
.article-shell article ul, .article-shell article ol { padding-left: 1.3em; margin-bottom: 1.4em; }
.article-shell article li { margin-bottom: 0.4em; }
.article-shell article blockquote {
  margin: 2em 0; padding: 18px 22px; border-left: 3px solid var(--green);
  background: rgba(46,125,95,0.06); font-style: normal; color: var(--ink-soft);
}
.article-shell article code { font-family: var(--f-mono); font-size: 14px; background: rgba(46,125,95,0.08); padding: 2px 6px; border-radius: 3px; }
.article-shell article figure { margin: 2em 0; }
.article-shell article figcaption { font-family: var(--f-mono); font-size: 12.5px; color: var(--steel); letter-spacing: 0.04em; margin-top: 8px; text-transform: uppercase; }
@media (max-width: 900px) { .article-shell { grid-template-columns: 1fr; gap: 24px; } .article-shell .article-aside { position: static; } }

.meta-byline {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center;
  font-family: var(--f-mono); font-size: 12.5px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--steel); margin-bottom: 24px;
}
.meta-byline .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--steel-lt); }

/* ---------- Table of contents ---------- */
.toc { font-family: var(--f-sans); border-left: 1px solid var(--hair); padding-left: 18px; }
.toc-title { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--steel); margin-bottom: 12px; }
.toc ul { list-style: none; padding: 0; margin: 0; }
.toc li { margin: 6px 0; }
.toc-h3 { padding-left: 12px; font-size: 14px; }
.toc a { color: var(--steel); font-size: 14.5px; line-height: 1.4; display: block; padding: 2px 0; transition: color .2s; }
.toc a:hover { color: var(--ink); }
.toc a.active { color: var(--green); font-weight: 600; }

/* ---------- Footnote tooltip ---------- */
.fn { position: relative; font-family: var(--f-mono); font-size: 11px; }
.fn a { color: var(--green); font-weight: 600; padding: 0 2px; }
.fn-tip {
  position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translateX(-50%) translateY(4px);
  background: var(--ink); color: var(--bone); font-family: var(--f-sans); font-size: 13px; font-weight: 400;
  padding: 10px 12px; border-radius: 3px; width: 260px; line-height: 1.45; letter-spacing: 0;
  text-transform: none; opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s; z-index: 40;
  box-shadow: 0 6px 20px rgba(0,0,0,.2);
}
.fn-tip.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Counter grid (hero) ---------- */
.counter-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; margin-top: 56px;
}
.counter-cell {
  border-top: 1px solid var(--hair); padding-top: 18px;
}
.counter-cell .counter-value {
  font-family: var(--f-display); font-weight: 600; font-size: clamp(36px, 4vw, 56px);
  letter-spacing: -0.02em; color: var(--ink); line-height: 1; font-variant-numeric: tabular-nums;
}
.counter-cell .counter-label { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--steel); margin-top: 8px; }
.counter-cell .counter-desc { font-size: 14px; color: var(--steel); margin-top: 8px; line-height: 1.5; max-width: 28ch; }
@media (max-width: 800px) { .counter-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- JS bar chart ---------- */
.jsc-bar { margin: 28px 0; }
.jsc-svg { width: 100%; max-width: 760px; height: auto; }
.jsc-lbl { font-family: var(--f-sans); font-size: 12.5px; fill: var(--steel); }
.jsc-val { font-family: var(--f-mono); font-size: 12px; fill: var(--ink); font-weight: 500; }
.jsc-bar-rect { fill: var(--green); }
.jsc-bar-rect:nth-child(3n+2) { fill: var(--copper); }
:root[data-theme="dark"] .jsc-lbl { fill: var(--steel-lt); }
:root[data-theme="dark"] .jsc-val { fill: var(--bone); }

/* ---------- Transparency callout ---------- */
.transparency {
  border: 1px solid var(--hair); background: var(--bg-alt); padding: 32px;
  display: grid; grid-template-columns: 72px 1fr; gap: 20px; margin: 48px 0;
}
.transparency .t-icon {
  width: 64px; height: 64px; border-radius: 50%; background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.transparency h4 { margin: 0 0 6px 0; font-size: 17px; }
.transparency p { margin: 0; color: var(--steel); font-size: 14.5px; line-height: 1.55; }
.transparency .t-links { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 12px 24px; font-family: var(--f-mono); font-size: 12.5px; }
.transparency .t-links a { color: var(--green); border-bottom: 1px solid currentColor; padding-bottom: 1px; }
:root[data-theme="dark"] .transparency { background: #0d1914; }

/* ---------- Data table for /data/ pages ---------- */
.data-table { width: 100%; border-collapse: collapse; font-family: var(--f-sans); font-size: 14.5px; margin: 20px 0 12px; }
.data-table th, .data-table td { padding: 10px 12px; border-bottom: 1px solid var(--hair); text-align: left; }
.data-table thead th { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); font-weight: 500; border-bottom: 1px solid var(--ink); }
.data-table td.num { font-family: var(--f-mono); text-align: right; font-variant-numeric: tabular-nums; }
.data-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0 24px; }
.data-actions a, .data-actions button {
  font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  border: 1px solid var(--hair); padding: 10px 16px; color: var(--ink); background: var(--bg-alt);
  transition: background .2s, color .2s;
}
.data-actions a:hover, .data-actions button:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* ---------- Article card (grid) ---------- */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (max-width: 900px) { .article-grid { grid-template-columns: 1fr; } }
.article-card {
  display: block; border: 1px solid var(--hair); background: var(--bg-alt); padding: 28px 26px;
  text-decoration: none; transition: transform .3s var(--ease), border-color .3s;
}
.article-card:hover { transform: translateY(-2px); border-color: var(--ink); }
.article-card .ac-kicker { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--green); }
.article-card h3 { margin: 14px 0 10px; font-size: 20px; line-height: 1.3; }
.article-card p { color: var(--steel); font-size: 14.5px; line-height: 1.55; margin: 0; }
.article-card .ac-meta { margin-top: 18px; font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.08em; color: var(--steel-lt); text-transform: uppercase; }
:root[data-theme="dark"] .article-card { background: #122018; border-color: #1e2a24; }

/* ---------- Research "specimen" card ---------- */
.spec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin: 40px 0; }
@media (max-width: 800px) { .spec-grid { grid-template-columns: 1fr; } }
.spec-card { border-left: 3px solid var(--copper); padding: 18px 22px; background: var(--bg-alt); border: 1px solid var(--hair); border-left-width: 3px; border-left-color: var(--copper); }
.spec-card .spec-k { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--steel); }
.spec-card .spec-v { font-family: var(--f-display); font-size: 22px; font-weight: 600; color: var(--ink); margin: 4px 0; }
.spec-card .spec-d { font-size: 14px; color: var(--steel); line-height: 1.5; }
:root[data-theme="dark"] .spec-card { background: #122018; border-color: #1e2a24; border-left-color: var(--copper); }

/* ---------- Glossary ---------- */
.gloss-list dt { font-family: var(--f-display); font-weight: 600; color: var(--ink); font-size: 18px; margin-top: 24px; }
.gloss-list dd { margin: 6px 0 0 0; color: var(--steel); max-width: 70ch; line-height: 1.6; }
.gloss-list dd + dd { margin-top: 4px; font-family: var(--f-mono); font-size: 12.5px; color: var(--steel-lt); }

/* ---------- RTL support (/ar/) ---------- */
[dir="rtl"] body { font-family: "Noto Naskh Arabic", "IBM Plex Sans Arabic", var(--f-sans); }
[dir="rtl"] .article-shell { grid-template-columns: minmax(0,1fr) 240px; }
[dir="rtl"] .toc { border-left: 0; border-right: 1px solid var(--hair); padding-left: 0; padding-right: 18px; }
[dir="rtl"] .transparency { grid-template-columns: 1fr 72px; }
[dir="rtl"] .breadcrumb .sep { transform: scaleX(-1); display: inline-block; }
[dir="rtl"] .nav-cta span { transform: scaleX(-1); display: inline-block; }

/* ---------- Print styles ---------- */
@media print {
  .nav, .site-footer, .nav-toggle, .theme-toggle, .toc, .data-actions, form { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .article-shell { display: block; padding: 0; }
  .article-shell article { max-width: 100%; }
  a { color: #000; text-decoration: underline; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 9pt; color: #555; }
  h2, h3 { break-after: avoid; }
  p, li, blockquote { orphans: 3; widows: 3; }
  img, svg { break-inside: avoid; }
  .jsc-bar-rect { fill: #333 !important; }
}

/* ---------- Source references bar ---------- */
.src-refs {
  border-top: 1px solid var(--hair); margin-top: 64px; padding-top: 24px;
  font-family: var(--f-mono); font-size: 12.5px; line-height: 1.7; color: var(--steel);
}
.src-refs h4 { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--steel); font-weight: 500; margin-bottom: 12px; }
.src-refs ol { padding-left: 1.4em; margin: 0; }
.src-refs li { margin-bottom: 6px; }
.src-refs a { color: var(--green); border-bottom: 1px solid currentColor; }

/* ---------- Hero research style ---------- */
.hero-research {
  padding: 112px var(--pad-x) 72px; background: var(--bg); border-bottom: 1px solid var(--hair);
  max-width: var(--maxw); margin: 0 auto;
}
.hero-research .kicker { margin-bottom: 18px; }
.hero-research .lede { margin-top: 28px; color: var(--steel); max-width: 64ch; }

/* ---------- Nav sub-link active state ---------- */
.nav-links a[aria-current="page"] { color: var(--green); }


/* =========================================================================
   READABILITY FIX PASS — 2026-04-21
   Root cause: in dark mode the core :root tokens (--ink, --bg, --bg-alt, --bone)
   are re-mapped, which inverted several intentionally-dark surfaces
   (.section.dark, .hero, .hero-interior, .esg-band, .site-footer, .card.dark)
   into light backgrounds while the text colour remained light → illegible.
   Fix: pin always-dark and always-light surfaces to fixed hex values,
   and add explicit dark-mode overrides for all hard-coded light surfaces.
   ========================================================================= */

/* Fixed brand surfaces (must never flip with theme) */
:root {
  --surface-dark:     #0F2A22;   /* deep industrial green, always dark */
  --surface-dark-2:   #163A2E;   /* slightly lighter dark accent */
  --on-dark:          #E8EAE6;   /* text on always-dark surfaces */
  --on-dark-dim:      #B8BDB5;   /* secondary text on always-dark */
  --surface-light:    #FFFFFF;   /* always-light card surface */
  --surface-light-2:  #F7F8F5;   /* always-light page surface */
  --ink-fixed:        #0F2A22;   /* ink colour that doesn't flip */
  --hair-fixed:       #D4D8D0;
}

/* ---------- Pin always-dark surfaces (work in both light and dark modes) ---------- */
.section.dark,
.section.bleed-dark        { background: var(--surface-dark) !important; color: var(--on-dark) !important; }
.section.dark h1,
.section.dark h2,
.section.dark h3,
.section.dark h4,
.section.dark h5,
.section.dark h6           { color: #fff !important; }
.section.dark p,
.section.dark li,
.section.dark .lede        { color: var(--on-dark); }
.section.dark .kicker      { color: var(--on-dark-dim); }
.section.dark .mono        { color: var(--on-dark-dim); }

.section.dark .card,
.card.dark                 { background: var(--surface-dark-2) !important; border-color: rgba(255,255,255,.10) !important; color: var(--on-dark) !important; }
.section.dark .card h3,
.card.dark h3              { color: #fff !important; }
.section.dark .card p,
.card.dark p               { color: var(--on-dark-dim) !important; }

.hero,
.hero-interior,
.esg-band                  { background: var(--surface-dark) !important; color: var(--on-dark) !important; }
.hero h1, .hero-interior h1,
.esg-quote                 { color: #fff !important; }
.hero .lede,
.hero-interior .lede       { color: var(--on-dark) !important; }
.hero-interior .kicker     { color: var(--copper) !important; }

.breadcrumb                { color: var(--on-dark-dim); }
.hero .breadcrumb,
.hero-interior .breadcrumb { color: var(--on-dark-dim); }
.hero .breadcrumb a,
.hero-interior .breadcrumb a { color: var(--on-dark-dim); }
.hero .breadcrumb a:hover,
.hero-interior .breadcrumb a:hover { color: #fff; }

.site-footer               { background: var(--surface-dark) !important; color: var(--on-dark) !important; }
.site-footer a             { color: var(--on-dark); }
.site-footer .brand-name   { color: #fff; }
.site-footer .brand-sub,
.site-footer .footer-mission,
.site-footer .footer-legal,
.site-footer .footer-ids   { color: var(--on-dark-dim); }
.site-footer .footer-ids strong { color: #fff; }
.site-footer .footer-col h4     { color: #fff; }

/* Dark-mode site footer: deepen background so it still reads as footer */
:root[data-theme="dark"] .site-footer { background: #050a08 !important; }

/* ---------- Dark-mode overrides for hard-coded light surfaces ---------- */

/* Any inline style="background:#fff" on sections and helpers — in dark mode repaint */
:root[data-theme="dark"] .section[style*="background:#fff"],
:root[data-theme="dark"] .section[style*="background: #fff"],
:root[data-theme="dark"] .section[style*="background:#FFFFFF"],
:root[data-theme="dark"] .section[style*="background:white"] {
  background: var(--bg-alt) !important;
  border-top-color: var(--hair) !important;
  border-bottom-color: var(--hair) !important;
}

/* Trust band (hardcoded white) */
:root[data-theme="dark"] .trust-band { background: var(--bg-alt); border-top-color: var(--hair); border-bottom-color: var(--hair); }
:root[data-theme="dark"] .trust-strip .trust-item { color: var(--bone); }
:root[data-theme="dark"] .trust-strip .trust-label { color: var(--steel-lt); }

/* Generic cards, industry cards, panels (already handled for .card — reinforce for industry-card children) */
:root[data-theme="dark"] .industry-card h3 { color: var(--bone); }
:root[data-theme="dark"] .industry-card .tam { color: var(--bone); }
:root[data-theme="dark"] .industry-card p { color: var(--steel-lt); }

/* Spec table — header cell hardcoded bg:#fff */
:root[data-theme="dark"] .spec-table th { background: var(--bg-alt); color: var(--steel-lt); }
:root[data-theme="dark"] .spec-table td { color: var(--bone); }
:root[data-theme="dark"] .spec-table td.num-cell { color: var(--bone); }

/* Long-form article — figure + blockquote hardcoded #fff */
:root[data-theme="dark"] .article .figure { background: var(--bg-alt); border-color: var(--hair); }
:root[data-theme="dark"] .article blockquote { background: var(--bg-alt); color: var(--bone); }
:root[data-theme="dark"] .article p { color: var(--carbon); }

/* Structure diagram (leadership / structure pages) */
:root[data-theme="dark"] .structure-diagram { background: var(--bg-alt); border-color: var(--hair); }
:root[data-theme="dark"] .struct-node { background: var(--bg-alt); border-color: var(--steel-lt); color: var(--bone); }
:root[data-theme="dark"] .struct-node .node-title { color: var(--bone); }
:root[data-theme="dark"] .struct-node .node-label { color: var(--steel-lt); }
:root[data-theme="dark"] .struct-node .node-meta { color: var(--steel); }
:root[data-theme="dark"] .struct-node.accent { background: rgba(46,125,95,.14); border-color: var(--green); }

/* Document list */
:root[data-theme="dark"] .doc-item { background: var(--bg-alt); border-color: var(--hair); }
:root[data-theme="dark"] .doc-info strong { color: var(--bone); }

/* Table wrap */
:root[data-theme="dark"] .table-wrap { background: var(--bg-alt); border-color: var(--hair); }

/* Form fields */
:root[data-theme="dark"] .field input,
:root[data-theme="dark"] .field select,
:root[data-theme="dark"] .field textarea { background: var(--bg-alt); border-color: var(--hair); color: var(--bone); }

/* News list */
:root[data-theme="dark"] .news-title { color: var(--bone); }
:root[data-theme="dark"] .news-excerpt { color: var(--steel-lt); }

/* Research article body in dark mode */
:root[data-theme="dark"] .article-shell article h2,
:root[data-theme="dark"] .article-shell article h3 { color: var(--bone); border-top-color: var(--hair); }
:root[data-theme="dark"] .article-shell article p,
:root[data-theme="dark"] .article-shell article li { color: var(--carbon); }
:root[data-theme="dark"] .article-shell article blockquote { background: rgba(46,125,95,0.10); color: var(--bone); }
:root[data-theme="dark"] .article-shell article code { background: rgba(46,125,95,0.14); color: var(--bone); }

/* Counter cells */
:root[data-theme="dark"] .counter-cell { border-top-color: var(--hair); }
:root[data-theme="dark"] .counter-cell .counter-value { color: var(--bone); }
:root[data-theme="dark"] .counter-cell .counter-label,
:root[data-theme="dark"] .counter-cell .counter-desc { color: var(--steel-lt); }

/* Spec cards (research) in dark mode — background already handled, ensure title colour */
:root[data-theme="dark"] .spec-card .spec-v { color: var(--bone); }
:root[data-theme="dark"] .spec-card .spec-k,
:root[data-theme="dark"] .spec-card .spec-d { color: var(--steel-lt); }

/* Transparency callout — already overridden; ensure headline readable */
:root[data-theme="dark"] .transparency h4 { color: var(--bone); }
:root[data-theme="dark"] .transparency p { color: var(--steel-lt); }

/* Glossary */
:root[data-theme="dark"] .gloss-list dt { color: var(--bone); }
:root[data-theme="dark"] .gloss-list dd { color: var(--steel-lt); }

/* Article cards */
:root[data-theme="dark"] .article-card h3 { color: var(--bone); }
:root[data-theme="dark"] .article-card p { color: var(--steel-lt); }
:root[data-theme="dark"] .article-card:hover { border-color: var(--green); }

/* Data table (research) */
:root[data-theme="dark"] .data-table thead th { color: var(--steel-lt); border-bottom-color: var(--steel-lt); }
:root[data-theme="dark"] .data-table td { color: var(--carbon); border-bottom-color: var(--hair); }
:root[data-theme="dark"] .data-actions a,
:root[data-theme="dark"] .data-actions button { background: var(--bg-alt); color: var(--bone); border-color: var(--hair); }
:root[data-theme="dark"] .data-actions a:hover,
:root[data-theme="dark"] .data-actions button:hover { background: var(--green); color: #fff; border-color: var(--green); }

/* News hover stripe in dark mode */
:root[data-theme="dark"] .news-item:hover { background: rgba(46,125,95,.06); }

/* Source refs */
:root[data-theme="dark"] .src-refs { color: var(--steel-lt); border-top-color: var(--hair); }
:root[data-theme="dark"] .src-refs h4 { color: var(--steel-lt); }

/* Hero research kicker on light bg (it uses --green which is fine either mode) */
:root[data-theme="dark"] .hero-research { background: var(--bg); border-bottom-color: var(--hair); }
:root[data-theme="dark"] .hero-research .lede { color: var(--steel-lt); }
:root[data-theme="dark"] .meta-byline { color: var(--steel-lt); }

/* Bar chart label readability in dark mode */
:root[data-theme="dark"] .bar-label { color: var(--bone); }
:root[data-theme="dark"] .bar-value { color: var(--bone); }
:root[data-theme="dark"] .bar-track { background: var(--hair); }

/* Hide theme toggle from Safari focus outline interaction if any */
.theme-toggle:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 50%; }

/* ---------- Inline white/green sections re-painted in dark mode ---------- */
/* Generic catch-all: any element whose inline style sets background to #fff / white gets re-painted */
:root[data-theme="dark"] [style*="background:#fff"],
:root[data-theme="dark"] [style*="background: #fff"],
:root[data-theme="dark"] [style*="background:#FFFFFF"],
:root[data-theme="dark"] [style*="background: #FFFFFF"],
:root[data-theme="dark"] [style*="background:white"],
:root[data-theme="dark"] [style*="background: white"] {
  background: var(--bg-alt) !important;
}

/* ---------- LIGHT MODE: sanity re-assert where --ink / --bg remap ---------- */
/* Ensure dark-section text stays readable in light mode too */
.section.dark .stat-value          { color: #fff; }
.section.dark .stat-label,
.section.dark .stat-desc           { color: var(--on-dark-dim); }
.section.dark .num-badge,
.section.dark .card-meta           { color: var(--on-dark-dim); }
.section.dark a                    { color: var(--on-dark); }
.section.dark a:hover              { color: var(--copper); }

/* ---------- Minimum AA contrast guardrails ---------- */
/* steel-lt on white could be borderline; raise it slightly in light mode */
@media (prefers-color-scheme: light) {
  /* no-op placeholder; tokens already AA */
}

/* Dark-mode button patches */
:root[data-theme="dark"] .btn-secondary { color: var(--bone); border-color: var(--bone); background: transparent; }
:root[data-theme="dark"] .btn-secondary:hover { background: var(--bone); color: var(--surface-dark); border-color: var(--bone); }

/* Ensure secondary btn on dark hero still legible (hero is always dark, so ghost-dark is preferred) */
.hero .btn-secondary,
.hero-interior .btn-secondary,
.section.dark .btn-secondary { color: #fff; border-color: rgba(255,255,255,.55); background: transparent; }
.hero .btn-secondary:hover,
.hero-interior .btn-secondary:hover,
.section.dark .btn-secondary:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }

/* ---------- Evidence locker utilities ---------- */
.kv-list { display: grid; grid-template-columns: 1fr; gap: 10px; margin: 0; padding: 12px 14px; background: var(--bg-alt, #f7f7f4); border-left: 3px solid var(--copper, #b56e3c); border-radius: 2px; }
.kv-list > div { display: grid; grid-template-columns: max-content 1fr; column-gap: 16px; align-items: start; }
.kv-list dt { margin: 0; font-family: var(--mono, ui-monospace, SFMono-Regular, Menlo, monospace); font-size: 12px; letter-spacing: .04em; text-transform: uppercase; color: var(--steel-lt, #6a7266); white-space: nowrap; }
.kv-list dd { margin: 0; font-size: 14px; color: var(--ink, #14201b); word-break: break-word; }
.num-list { counter-reset: num; list-style: none; padding-left: 0; margin: 0; }
.num-list li { counter-increment: num; position: relative; padding: 14px 0 14px 48px; border-top: 1px solid var(--hair, rgba(20,32,27,.12)); }
.num-list li:last-child { border-bottom: 1px solid var(--hair, rgba(20,32,27,.12)); }
.num-list li::before { content: counter(num, decimal-leading-zero); position: absolute; left: 0; top: 14px; font-family: var(--mono, ui-monospace, monospace); font-size: 12px; letter-spacing: .1em; color: var(--copper, #b56e3c); font-weight: 600; }
.num-list li code.mono { background: var(--bg-alt, #f7f7f4); padding: 2px 6px; border-radius: 2px; font-size: 12.5px; }