:root{
  --green:#2CB34A; --green-d:#1E7D33; --green-br:#37c957; --green-tint:#E9F6EC;
  --ink:#1A1C1E; --grey:#5F6062; --body:#3c4247; --muted:#6B6E70;
  --dark:#0E1A13; --dark2:#0a130d; --line:#E3E5E6; --light:#F6F7F7; --white:#fff;
  --maxw:1140px;
  --sans:"Arimo","Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"Roboto Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--sans);color:var(--body);background:var(--white);line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--sans);color:var(--ink);line-height:1.08;letter-spacing:-.02em}
h1,h2{font-weight:700}
h3{font-weight:700}
a{color:inherit;text-decoration:none}
svg{display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:92px 0}
.label{font-family:var(--mono);font-weight:600;letter-spacing:.18em;text-transform:uppercase;font-size:.74rem;color:var(--green-d)}
.label.grey{color:var(--muted)}
.shead{max-width:760px;margin-bottom:50px}
.shead h2{font-size:2.5rem;margin:16px 0 16px}
.shead p{font-size:1.1rem;color:var(--body)}
.btn{display:inline-block;font-weight:700;font-size:.95rem;padding:14px 26px;border-radius:6px;cursor:pointer;transition:.18s;border:2px solid transparent;font-family:var(--sans)}
.btn-primary{background:var(--green-d);color:#fff}
.btn-primary:hover{background:#155f27}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--green-d);color:var(--green-d)}
.btn-ondark{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ondark:hover{background:rgba(255,255,255,.1);border-color:#fff}
:focus-visible{outline:3px solid var(--green-d);outline-offset:2px}

/* LOGO */
.logo{display:flex;align-items:center;gap:11px}
.logo .mark{height:26px;width:auto;flex:none}
.logo .wm{font-size:1.18rem;color:var(--grey);letter-spacing:-.01em;line-height:1}
.logo .wm b{color:var(--ink);font-weight:800}
.logo.on-dark .wm{color:rgba(255,255,255,.72)}
.logo.on-dark .wm b{color:#fff}

/* HEADER */
header.site{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
nav.main ul{display:flex;align-items:center;gap:26px;list-style:none}
nav.main a{font-weight:500;font-size:.92rem;color:var(--body)}
nav.main a:hover{color:var(--green-d)}
nav.main .btn{padding:10px 18px}
nav.main a.btn-primary{color:#fff}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;padding:6px}

/* HERO */
.hero{padding:96px 0 0;background:var(--white);position:relative;overflow:hidden}
.hero .label{margin-bottom:22px}
.hero h1{font-size:5rem;letter-spacing:-.03em}
.hero h1 .g{color:var(--green-d)}
.hero .sub{display:flex;align-items:center;gap:16px;margin:26px 0 30px}
.hero .sub .tick{width:46px;height:3px;background:var(--green);flex:none;border-radius:2px}
.hero .sub p{font-size:1.32rem;font-weight:700;color:var(--ink)}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero .stream{margin-top:60px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0}
.hero .stream svg,.hero .stream canvas{display:block;width:100%;height:54px}
.hero .meta-row{display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;padding:22px 0 0;color:var(--muted);font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase}

/* STAT STRIP */
.facts{background:var(--ink);color:#fff}
.facts .row{display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.facts .cell{padding:30px 26px;border-left:1px solid rgba(255,255,255,.12)}
.facts .cell:first-child{border-left:0;padding-left:0}
.facts .k{font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--green-br);margin-bottom:8px}
.facts .v{font-size:1.12rem;font-weight:700;color:#fff;line-height:1.25}

/* WHO */
.who .grid{display:grid;grid-template-columns:1.25fr .9fr;gap:54px;align-items:start}
.who p.lead{font-size:1.12rem;margin-top:18px}
.who .quote{margin-top:30px;background:var(--green);color:#fff;border-radius:12px;padding:28px 30px}
.who .quote .qmark{font-size:2.4rem;line-height:.6;font-weight:800;opacity:.6}
.who .quote h3{color:#fff;font-size:1.18rem;margin:6px 0 10px}
.who .quote p{color:rgba(255,255,255,.92);font-size:.98rem}
.twocard{display:grid;gap:16px;margin-top:24px}
.twocard .c{border:1px solid var(--line);border-radius:12px;padding:24px;border-top:3px solid var(--green)}
.twocard .c h3{font-size:1.1rem;margin-bottom:8px}
.twocard .c p{font-size:.96rem}

/* PURPOSE */
.purpose{background:var(--light)}
.vm{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:44px}
.vm .label{margin-bottom:12px}
.vm h3{font-size:1.5rem;color:var(--ink);font-weight:800;line-height:1.25}
.values{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.values .v{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;border-left:4px solid var(--green)}
.values .v h4{font-size:1.08rem;color:var(--ink);margin-bottom:6px}
.values .v p{font-size:.95rem}

/* SERVICES */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;transition:.18s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(21,25,28,.08);border-color:#d7e6da}
.card .ico{width:48px;height:48px;border-radius:11px;background:var(--green-tint);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card h3{font-size:1.1rem;margin-bottom:8px}
.card p{font-size:.95rem}

/* TECHNOLOGY (dark) */
.tech{background:var(--dark);color:rgba(255,255,255,.82)}
.tech h2,.tech h3{color:#fff}
.tech .shead p{color:rgba(255,255,255,.72)}
.tech .label{color:var(--green-br)}
.path{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.path .step{position:relative;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:22px}
.path .step.reg{border-color:var(--green);box-shadow:0 0 0 1px var(--green) inset}
.path .step .k{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green-br);margin-bottom:10px}
.path .step h3{font-size:1.12rem;margin-bottom:6px}
.path .step p{font-size:.86rem;color:rgba(255,255,255,.66)}
.path .step .arrow{position:absolute;right:-11px;top:50%;transform:translateY(-50%);z-index:2;color:var(--green-br)}
.stream-dark{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:18px 22px;margin-bottom:34px}
.stream-dark .top{display:flex;justify-content:space-between;font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.6);margin-bottom:6px}
.stream-dark .live{color:var(--green-br)}
.stream-dark svg,.stream-dark canvas{display:block;width:100%;height:50px}
.cems{display:flex;align-items:center;gap:22px}
.cems-graph{flex:1;min-width:0}
.cems-readout{flex:none;min-width:118px;line-height:1.05}
.cems-num{font-family:var(--mono);font-weight:700;font-size:2rem;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.cems-unit{font-size:.8rem;color:var(--grey);margin-left:5px}
.cems-pill{margin-top:8px;display:inline-block;background:var(--green-tint);color:var(--green-d);font-weight:600;font-size:.72rem;padding:3px 11px;border-radius:20px;white-space:nowrap}
.cems-pill.breach{background:#FCE9E7;color:#C0392B}
.hero .cems-num{font-size:1.6rem}
.cems-on-dark .cems-num{color:#fff}
.cems-on-dark .cems-unit{color:rgba(255,255,255,.6)}
.cems-on-dark .cems-pill{background:rgba(55,201,87,.14);color:#37c957}
.cems-on-dark .cems-pill.breach{background:rgba(192,57,43,.2);color:#F0795F}
@media(max-width:600px){
  .cems{flex-direction:column;align-items:stretch;gap:12px}
  .cems-readout{display:flex;align-items:baseline;justify-content:space-between;min-width:0}
  .cems-num{font-size:1.7rem}
  .cems-pill{margin-top:0;align-self:center}
}
.tstats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:30px}
.tstat{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:24px}
.tstat .n{font-size:2.4rem;font-weight:800;color:var(--green-br);line-height:1}
.tstat .l{font-size:.9rem;color:rgba(255,255,255,.7);margin-top:8px}
.tech .note{border-left:3px solid var(--green);padding:6px 0 6px 20px}
.tech .note h3{font-size:1.16rem;margin-bottom:8px}
.tech .note p{font-size:.96rem;color:rgba(255,255,255,.74)}

/* TRACK RECORD */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);margin-bottom:46px}
.kpis .kpi{padding:26px;border-left:1px solid var(--line);text-align:left}
.kpis .kpi:first-child{border-left:0;padding-left:0}
.kpis .n{font-size:2.6rem;font-weight:800;color:var(--green-d);line-height:1}
.kpis .l{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:10px}
.ind{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-bottom:40px}
.ind .i{display:flex;gap:14px;align-items:flex-start;background:var(--light);border-radius:12px;padding:20px 22px}
.ind .i .ico{flex:none;width:40px;height:40px;border-radius:9px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.ind .i h4{font-size:1.05rem;color:var(--ink);margin-bottom:3px}
.ind .i p{font-size:.92rem}
.clients .cap{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.logos{display:flex;flex-wrap:wrap;gap:12px}
.logos span{font-weight:700;color:var(--ink);background:var(--light);border:1px solid var(--line);border-radius:8px;padding:12px 20px;font-size:.95rem}
.logos .more{color:var(--muted);font-weight:500;align-self:center;font-size:.9rem}

/* WHY + TEAM */
.why{background:var(--light)}
.reasons{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 40px;margin-bottom:60px}
.reasons .r{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.reasons .num{font-family:var(--mono);font-weight:700;font-size:1.4rem;color:var(--green-d);flex:none;line-height:1}
.reasons h3{font-size:1.08rem;margin-bottom:4px}
.reasons p{font-size:.93rem}
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.member{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;display:flex;gap:14px}
.member .av{flex:none;width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem;font-family:var(--mono)}
.member h4{font-size:1rem;color:var(--ink);line-height:1.2}
.member .role{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--green-d);margin:4px 0 7px}
.member p{font-size:.88rem}

/* ACCREDITATIONS */
.accred{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.accred .a{border:1px solid var(--line);border-radius:12px;padding:22px;border-top:3px solid var(--green)}
.accred .a .k{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green-d);margin-bottom:8px}
.accred .a p{font-size:.9rem}
.reg-line{margin-top:22px;font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;color:var(--muted)}

/* CTA / CONTACT (dark) */
.contact{background:var(--dark2);color:rgba(255,255,255,.8)}
.contact h2{color:#fff}
.contact .label{color:var(--green-br)}
.contact .grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.contact h2{font-size:2.8rem;margin:14px 0 24px}
.contact h2 .g{color:var(--green-br)}
.cdetails{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:10px}
.cdetails .d .k{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green-br);margin-bottom:6px}
.cdetails .d p,.cdetails .d a{font-size:.98rem;color:#fff}
.cdetails .d a.maplink{display:inline-flex;align-items:center;gap:7px;margin-top:10px;color:var(--green-br);font-weight:600;font-size:.9rem}
.cdetails .d a.maplink:hover{color:#fff}
.cdetails .d a.maplink svg{flex:none}
form .field{margin-bottom:15px}
form label{font-size:.82rem;font-weight:600;color:rgba(255,255,255,.85);display:block;margin-bottom:6px;font-family:var(--mono);letter-spacing:.04em;text-transform:uppercase}
form input,form select,form textarea{width:100%;padding:12px 14px;border:1px solid rgba(255,255,255,.18);border-radius:7px;font-family:var(--sans);font-size:.96rem;background:rgba(255,255,255,.06);color:#fff}
form input::placeholder,form textarea::placeholder{color:rgba(255,255,255,.4)}
form .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form button{width:100%;margin-top:4px}

/* FOOTER */
footer.site{background:#070d09;color:rgba(255,255,255,.6);padding:56px 0 28px}
footer .grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;margin-bottom:36px}
footer h4{font-family:var(--mono);color:#fff;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
footer a{color:rgba(255,255,255,.6);font-size:.92rem;line-height:2.05}
footer a:hover{color:#fff}
/* Footer column links: distinct, separated blocks (esp. when they wrap on mobile) */
footer .grid > div > a{display:block;line-height:1.35;padding:7px 0}
footer .grid > div > br{display:none}
footer .desc{font-size:.92rem;margin-top:14px;max-width:32ch}
.social{display:flex;gap:10px;margin-top:16px}
.social a{width:36px;height:36px;border:1px solid rgba(255,255,255,.22);border-radius:8px;display:flex;align-items:center;justify-content:center}
.social a:hover{background:rgba(255,255,255,.1)}
.legal{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;color:rgba(255,255,255,.45)}

/* INNER PAGES + BLOG */
section.inner{padding:56px 0 84px}
.page-head{max-width:820px;margin-bottom:8px}
.page-head .label{margin-bottom:14px}
.page-head h1{font-size:3rem}
.page-head p{font-size:1.12rem;color:var(--body);margin-top:14px}
.post-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:44px}
.post-card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;transition:.18s}
.post-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(21,25,28,.08);border-color:#d7e6da}
.post-card .date{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.post-card h3{font-size:1.2rem;margin-bottom:8px}
.post-card p{font-size:.95rem}
.post-card .more{display:inline-block;margin-top:12px;color:var(--green-d);font-weight:600;font-size:.9rem}
.insights{background:var(--light)}
.ins-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:10px}
.ins-all{margin-top:34px}
.related{margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.related .label{margin-bottom:14px}
.related ul{list-style:none;margin:0;padding:0}
.related li{margin-bottom:10px}
.related a{color:var(--green-d);font-weight:600;text-decoration:none}
.related a:hover{text-decoration:underline}
.article{max-width:760px;margin:0 auto}
.article .date{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--green-d);margin-bottom:14px}
.article h1{font-size:2.6rem;margin-bottom:20px}
.article h2{font-size:1.6rem;margin:34px 0 12px}
.article h3{font-size:1.2rem;margin:24px 0 10px}
.article p{font-size:1.05rem;margin-bottom:16px;color:var(--body)}
.article ul,.article ol{margin:0 0 18px 22px}
.article li{margin-bottom:8px;font-size:1.05rem}
.article blockquote{border-left:4px solid var(--green);padding:6px 0 6px 20px;margin:22px 0;color:var(--ink);font-style:italic}
.article strong{color:var(--ink)}
.article a{color:var(--green-d);text-decoration:underline}
.article a.btn{text-decoration:none}
.article a.btn-primary{color:#fff}
.article a.btn-primary:hover{color:#fff}
.article a.btn-ghost{color:var(--ink)}
.article a.btn-ghost:hover{color:var(--green-d)}
.article a.btn-ondark{color:#fff}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.back-link{display:inline-block;margin-top:34px;color:var(--green-d);font-weight:600;font-size:.92rem}
@media(max-width:960px){
  .hero h1{font-size:3.6rem}
  .who .grid,.vm,.contact .grid{grid-template-columns:1fr}
  .cards,.path,.tstats,.team,.accred,.ins-grid{grid-template-columns:1fr 1fr}
  .facts .row,.kpis{grid-template-columns:1fr 1fr}
  .facts .cell:nth-child(3),.kpis .kpi:nth-child(3){border-left:0;padding-left:0}
  .reasons{grid-template-columns:1fr}
  .path .step .arrow{display:none}
}
/* Nav collapses to the hamburger below 900px so iPads (≈768–834px portrait) don't show a cramped, wrapping desktop nav */
@media(max-width:900px){
  nav.main ul{display:none}
  nav.main.open ul{display:flex;flex-direction:column;align-items:stretch;gap:4px;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 30px rgba(21,25,28,.10);padding:14px 24px 20px;z-index:59}
  nav.main.open ul li{width:100%}
  nav.main.open ul a{display:block;padding:11px 0}
  nav.main.open ul .btn{width:100%;text-align:center;margin-top:8px;padding:13px}
  .menu-toggle{display:block}
}
@media(max-width:680px){
  section{padding:62px 0}
  .hero h1{font-size:2.7rem}
  .hero .sub p{font-size:1.1rem}
  .shead h2{font-size:1.9rem}
  .cards,.path,.tstats,.team,.accred,.values,.ind,.cdetails,form .two,.facts .row,.kpis,.post-list,.ins-grid,footer .grid{grid-template-columns:1fr}
  footer .grid{gap:32px}
  .facts .cell,.kpis .kpi{border-left:0;padding-left:0}
  .contact h2{font-size:2rem}
  .page-head h1{font-size:2.2rem}
  .article h1{font-size:1.9rem}
}

/* ---- explanatory diagrams ---- */
.fig{margin:34px 0;border:1px solid var(--line);border-radius:14px;background:var(--white);padding:22px}
.fig svg{display:block;width:100%;max-width:680px;height:auto;margin:0 auto}
.fig.ring svg{max-width:520px}
.fig figcaption{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:14px;text-align:center;line-height:1.5}
.fig .fig-title{font-size:1.02rem;font-weight:800;color:var(--ink);text-align:center;margin:0 0 16px;letter-spacing:-.01em}
.fig .fig-note{font-size:.84rem;color:var(--body);text-align:center;margin:14px 0 0}
/* flow component — reflows to a vertical stack on mobile */
.fig.flow .flow-row{display:flex;align-items:stretch;gap:8px}
.fig.flow .flow-step{flex:1;border:2px solid var(--green);border-radius:11px;padding:15px 10px;text-align:center;display:flex;flex-direction:column;justify-content:center}
.fig.flow .flow-step.muted{border-color:var(--grey)}
.fig.flow .flow-step.hl{background:var(--green-tint)}
.fig.flow .fs-k{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green-d);margin-bottom:6px}
.fig.flow .fs-name{font-weight:700;font-size:1.12rem;color:var(--ink);line-height:1.1}
.fig.flow .fs-q{color:var(--body);font-size:.85rem;margin-top:5px}
.fig.flow .fs-own{color:var(--muted);font-size:.74rem;margin-top:9px}
.fig.flow .flow-arrow{display:flex;align-items:center;justify-content:center;color:var(--green-d);font-size:1.3rem;font-weight:700;flex:none}
@media(max-width:600px){
  .fig.flow .flow-row{flex-direction:column;gap:6px}
  .fig.flow .flow-arrow{transform:rotate(90deg);padding:2px 0}
}

/* =====================================================================
   Insights series navigation — stepper, pager, nav dropdown, blog landing
   All colours/fonts use existing design-system tokens.
   ===================================================================== */

/* --- Global nav: Insights dropdown --- */
.has-dropdown{position:relative}
/* Scoped under nav.main so it out-specifies `nav.main ul{display:flex}`, which
   also matches this nested ul and would otherwise leave it permanently visible
   as a horizontal strip whenever it isn't being hovered. */
nav.main .dropdown{display:none;list-style:none;margin:0;padding:0;gap:0}
@media(min-width:901px){
  nav.main .dropdown{position:absolute;top:100%;right:0;left:auto;min-width:300px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 36px rgba(21,25,28,.10);padding:8px;margin-top:12px;z-index:70}
  .has-dropdown:hover .dropdown,.has-dropdown:focus-within .dropdown{display:block}
  nav.main .dropdown li{width:100%}
  nav.main .dropdown a{display:block;padding:9px 12px;border-radius:8px;font-size:.9rem;color:var(--body);white-space:nowrap}
  nav.main .dropdown a:hover{background:var(--green-tint);color:var(--green-d)}
  /* invisible hover bridge across the gap so the menu doesn't flicker shut */
  .has-dropdown::after{content:"";position:absolute;left:0;right:0;top:100%;height:14px}
}
@media(max-width:900px){
  /* Reset the absolute-panel styling that `nav.main.open ul` also applies to this
     nested ul, so the submenu flows inline as an indented list instead of a
     floating card over the page. */
  nav.main.open .dropdown{display:block;position:static;background:none;box-shadow:none;min-width:0;padding:2px 0 6px 14px;border:0;border-left:2px solid var(--line);margin:2px 0 8px}
  nav.main.open .dropdown a{padding:8px 0;font-size:.9rem;color:var(--muted)}
}

/* --- Series stepper (top of post) --- */
.series-nav{border:1px solid var(--line);border-radius:14px;background:var(--light);padding:18px 20px;margin-bottom:26px}
.series-nav-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.series-nav-head .series-name{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--green-d);font-weight:600;text-decoration:none}
.series-nav-head .series-name:hover{text-decoration:underline}
.series-nav-head .series-meta{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.series-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.series-steps .step a,.series-steps .step span{display:flex;gap:12px;align-items:baseline;padding:9px 10px;border-radius:8px;font-size:.95rem;color:var(--body);text-decoration:none;line-height:1.35}
.series-steps .step a:hover{background:#fff;color:var(--green-d)}
.series-steps .step .sn{flex:none;width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:.72rem;font-weight:600;background:#fff;border:1px solid var(--line);color:var(--muted)}
.series-steps .step.current>span{background:var(--green-tint);color:var(--ink);font-weight:600}
.series-steps .step.current .sn{background:var(--green-d);border-color:var(--green-d);color:#fff}

/* --- Prev/next pager (bottom of post) --- */
.series-pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:40px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.series-pager .pg{display:flex;flex-direction:column;gap:5px;border:1px solid var(--line);border-radius:12px;padding:16px 18px;text-decoration:none;transition:.18s}
.series-pager a.pg:hover{border-color:#d7e6da;box-shadow:0 12px 28px rgba(21,25,28,.07);transform:translateY(-2px)}
.series-pager .pg.next{text-align:right;align-items:flex-end}
.series-pager .pg .dir{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--green-d)}
.series-pager .pg .t{font-size:.96rem;font-weight:600;color:var(--ink);line-height:1.3}
.series-pager .pg.empty{border:0}

/* --- Blog landing: feature, filter chips, series groups --- */
.post-feature{display:block;background:var(--ink);color:#fff;border-radius:16px;padding:30px 32px;margin:40px 0 8px;text-decoration:none;transition:.18s}
.post-feature:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(21,25,28,.16)}
.post-feature .ff-label{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--green-br)}
.post-feature h2{color:#fff;font-size:1.6rem;margin:10px 0 8px;line-height:1.15}
.post-feature p{color:rgba(255,255,255,.78);font-size:1rem;margin:0 0 14px;max-width:70ch}
.post-feature .meta{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--green-br)}

.series-filter{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0 8px}
.series-filter .chip{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;font-weight:500;padding:8px 14px;border-radius:30px;border:1px solid var(--line);background:#fff;color:var(--body);cursor:pointer;transition:.15s}
.series-filter .chip:hover{border-color:var(--green-d);color:var(--green-d)}
.series-filter .chip.active{background:var(--green-d);border-color:var(--green-d);color:#fff}

.series-group{margin-top:44px;scroll-margin-top:90px}
.series-group .sg-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--ink)}
.series-group .sg-head h2{font-size:1.5rem;line-height:1.1}
.series-group .sg-head .sg-for{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.series-group .post-list{margin-top:0}

@media(max-width:680px){
  .series-pager{grid-template-columns:1fr}
  .series-pager .pg.next{text-align:left;align-items:flex-start}
  .series-pager .pg.empty{display:none}
}

/* --- Standards lineage figure (Part 3 of the reference-methods series) --- */
.fig.lineage .lin-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:16px}
.fig.lineage .lin-col{position:relative;border:1px solid var(--line);border-radius:12px;background:var(--white);padding:18px 16px 16px;overflow:hidden;text-align:left}
.fig.lineage .lin-col::before{content:"";position:absolute;top:0;left:0;bottom:0;width:4px}
.fig.lineage .lin-col.iso::before{background:var(--grey)}
.fig.lineage .lin-col.en::before{background:var(--green-d)}
.fig.lineage .lin-col.ms::before{background:var(--green)}
.fig.lineage .lin-tier{display:block;font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.fig.lineage .lin-code{display:block;font-size:1.4rem;font-weight:800;letter-spacing:-.01em;color:var(--ink);line-height:1}
.fig.lineage .lin-col.iso .lin-code{color:var(--grey)}
.fig.lineage .lin-col.en .lin-code{color:var(--green-d)}
.fig.lineage .lin-col.ms .lin-code{color:var(--green-d)}
.fig.lineage .lin-full{display:block;font-size:.82rem;color:var(--body);margin:6px 0 14px;line-height:1.4}
.fig.lineage dl{margin:0;border-top:1px solid var(--line);padding-top:12px}
.fig.lineage dt{font-family:var(--mono);font-size:.58rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.fig.lineage dd{margin:0 0 11px;font-size:.82rem;color:var(--ink);line-height:1.4}
.fig.lineage dd:last-child{margin-bottom:0}
.fig.lineage .lin-badge{display:inline-block;font-family:var(--mono);font-size:.6rem;letter-spacing:.04em;padding:2px 7px;border-radius:5px;border:1px solid var(--line);color:var(--muted);margin:0 4px 4px 0}
.fig.lineage .lin-badge.live{border-color:var(--green);color:var(--green-d)}
.fig.lineage .lin-badge.draft{border-color:var(--grey);color:var(--grey)}
@media(max-width:680px){
  .fig.lineage .lin-cols{grid-template-columns:1fr}
}