/* ============================================================
   DatChem, shared site stylesheet
   Design system extracted from the approved specialist page,
   extended for the full multi-page rebuild.
   ============================================================ */

:root{
  --bg:#07182f;
  --bg-2:#0a2247;
  --bg-3:#0c2b54;
  --panel:#0e2a50;
  --panel-2:#102f5b;
  --line:rgba(120,170,230,.16);
  --line-strong:rgba(120,180,235,.32);
  --teal:#2bb3e2;
  --teal-bright:#63d6f0;
  --teal-deep:#1a8fc4;
  --navy-ink:#08214a;
  --white:#ffffff;
  --text:#e9f1fb;
  --muted:#9db4d4;
  --muted-2:#7e97bb;
  --steel:#6e90c4;
  --maxw:1200px;
  --r:18px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip}
body{
  margin:0;
  font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  font-size:17px;
  letter-spacing:.005em;
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(1100px 700px at 82% -8%, rgba(43,179,226,.16), transparent 60%),
    radial-gradient(900px 800px at 12% 8%, rgba(26,90,170,.20), transparent 60%),
    radial-gradient(1200px 900px at 50% 120%, rgba(12,43,84,.55), transparent 60%),
    linear-gradient(180deg, #061427 0%, #07182f 38%, #061629 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img{max-width:100%;display:block}
.svg-defs{position:absolute;width:0;height:0;overflow:hidden;pointer-events:none}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.narrow{max-width:820px}

/* ---------- type ---------- */
h1,h2,h3,h4{font-family:"Jost",sans-serif;font-weight:400;line-height:1.08;margin:0;letter-spacing:-.005em}
.display{font-size:clamp(2.5rem,6vw,4.7rem);font-weight:300;line-height:1.05}
h2.section-title{font-size:clamp(2rem,4.4vw,3.4rem);font-weight:300}
h3{font-size:clamp(1.25rem,2vw,1.6rem);font-weight:400}
.teal{color:var(--teal-bright)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.74rem;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:var(--teal);margin:0 0 22px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--teal),transparent)}
.eyebrow.bright{color:var(--teal-bright)}
.lead{font-size:clamp(1.05rem,1.5vw,1.28rem);color:var(--muted);max-width:62ch}
p{margin:0 0 1.1em}
.section{padding:clamp(72px,9vw,128px) 0;position:relative}
.section.tight{padding:clamp(56px,7vw,96px) 0}
.section-head{max-width:780px;margin-bottom:54px}
.section-head .lead{margin-top:20px}
.center{text-align:center;margin-left:auto;margin-right:auto}

/* ---------- header / nav ---------- */
header.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background .4s var(--ease),backdrop-filter .4s var(--ease),border-color .4s;
  border-bottom:1px solid transparent;
}
header.site-header.scrolled{
  background:rgba(7,20,39,.8);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:13px;cursor:pointer}
.brand .mark{width:34px;height:34px;flex:none}
.brand .wordmark{font-family:"Jost";font-weight:300;font-size:1.5rem;letter-spacing:.16em;text-transform:uppercase;line-height:1}
.brand .wordmark b{font-weight:400;color:var(--teal-bright)}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a:not(.btn){font-size:.92rem;color:var(--muted);font-weight:500;position:relative;transition:color .25s;padding:6px 0}
.nav-links a:not(.btn):hover,.nav-links a.active{color:var(--white)}
.nav-links a:not(.btn)::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--teal);transition:width .3s var(--ease)}
.nav-links a:not(.btn):hover::after,.nav-links a.active::after{width:100%}

/* dropdown */
.nav-item{position:relative;display:flex;align-items:center;gap:2px}
.dd-toggle{background:none;border:0;cursor:pointer;color:var(--muted);padding:6px 2px;display:inline-flex;align-items:center;transition:color .25s}
.nav-item:hover .dd-toggle,.nav-item.open .dd-toggle,.nav-item.active .dd-toggle{color:var(--white)}
.dd-toggle svg{width:12px;height:12px;transition:transform .3s var(--ease)}
.nav-item.open .dd-toggle svg,.nav-item:hover .dd-toggle svg{transform:rotate(180deg)}
.dropdown{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(8px);
  min-width:248px;background:rgba(9,26,50,.96);backdrop-filter:blur(16px);
  border:1px solid var(--line-strong);border-radius:16px;padding:10px;
  box-shadow:0 24px 50px -20px rgba(0,0,0,.7);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),transform .25s var(--ease);z-index:5;
}
.nav-item:hover .dropdown,.nav-item.open .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px}
.dropdown a{display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:10px;color:var(--text);font-size:.92rem;transition:background .2s,color .2s}
.dropdown a:hover{background:rgba(43,179,226,.1);color:var(--teal-bright)}
.dropdown a .dd-dot{width:8px;height:8px;border-radius:50%;flex:none;background:radial-gradient(circle at 35% 35%,var(--teal-bright),var(--teal-deep))}
.dropdown a small{display:block;color:var(--muted-2);font-size:.78rem;margin-top:2px;font-weight:400}
.dropdown a strong{font-weight:600}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;cursor:pointer;border:0;
  font-family:inherit;font-size:.95rem;font-weight:600;letter-spacing:.01em;
  padding:13px 24px;border-radius:100px;transition:transform .25s var(--ease),box-shadow .3s,background .3s,border-color .3s,color .3s;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:linear-gradient(135deg,var(--teal-bright),var(--teal-deep));color:var(--navy-ink);box-shadow:0 8px 26px -10px rgba(43,179,226,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px -10px rgba(43,179,226,.85);color:var(--navy-ink)}
.btn-ghost{background:transparent;color:var(--white);border:1px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal-bright);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:.88rem}
.nav-links a.btn-primary{color:var(--navy-ink)}
.nav .btn{padding:11px 22px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{width:24px;height:2px;background:var(--white);border-radius:2px;transition:.3s}

/* text link with arrow */
.tlink{display:inline-flex;align-items:center;gap:8px;color:var(--teal-bright);font-weight:600;font-size:.95rem;transition:gap .25s var(--ease)}
.tlink svg{width:16px;height:16px}
.tlink:hover{gap:13px}

/* ---------- hero (home) ---------- */
.hero{position:relative;padding:168px 0 84px;min-height:90vh;display:flex;align-items:center;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;width:100%}
.hero-copy{max-width:660px;position:relative;z-index:2}
.hero h1{margin-bottom:26px}
.hero .lead{margin-bottom:18px;color:#cdddf2;font-size:clamp(1.1rem,1.6vw,1.35rem)}
.hero .sub{color:var(--muted);max-width:54ch;margin-bottom:34px}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px}
.hero-visual{position:relative;justify-self:center;align-self:center}
.hero-visual .glow{position:absolute;inset:-10% -6% -10% -6%;z-index:0;background:radial-gradient(closest-side,rgba(43,179,226,.13),rgba(43,179,226,0) 62%);filter:blur(18px)}
.ring-wrap{position:relative;z-index:1;filter:drop-shadow(0 30px 60px rgba(0,0,0,.5));transform-origin:50% 50%;will-change:transform}
.ring-img{display:block;width:min(540px,44vw);transform-origin:50% 50%}
@media(prefers-reduced-motion:no-preference){
  .ring-img{filter:url(#liquidMorph);animation:ringBreathe 6.5s ease-in-out infinite;will-change:transform,filter}
  .ring-wrap{animation:ringFloat 13s ease-in-out infinite}
  .hero-visual .glow{animation:glowPulse 4.25s ease-in-out infinite}
}
@keyframes ringFloat{0%{transform:translateY(0) rotate(0) scale(1)}25%{transform:translateY(-12px) rotate(2.4deg) scale(1.02)}50%{transform:translateY(-3px) rotate(-1.5deg) scale(1.03)}75%{transform:translateY(8px) rotate(-2.6deg) scale(1.012)}100%{transform:translateY(0) rotate(0) scale(1)}}
@keyframes ringBreathe{0%{transform:scale(1,1)}33%{transform:scale(1.03,.972)}66%{transform:scale(.975,1.028)}100%{transform:scale(1,1)}}
@keyframes glowPulse{0%,100%{transform:scale(1);opacity:.42}50%{transform:scale(1.09);opacity:.68}}

/* ---------- inner-page hero ---------- */
.page-hero{position:relative;padding:148px 0 56px;overflow:hidden}
.page-hero .glow-orb{position:absolute;top:-30%;right:-8%;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(43,179,226,.16),transparent 70%);pointer-events:none;z-index:0}
.page-hero .container{position:relative;z-index:1}
.crumbs{display:flex;gap:9px;align-items:center;font-size:.82rem;color:var(--muted-2);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:var(--muted);transition:color .2s}.crumbs a:hover{color:var(--teal-bright)}
.crumbs span{opacity:.5}
.page-hero h1{font-family:"Jost";font-weight:300;font-size:clamp(2.3rem,5vw,3.9rem);margin-bottom:20px}
.page-hero .lead{max-width:60ch}
.page-hero.with-media .ph-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}

/* ---------- stat strip ---------- */
.stats{margin-top:60px;display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:linear-gradient(180deg,rgba(16,47,91,.5),rgba(10,34,71,.3));backdrop-filter:blur(4px);position:relative;z-index:2}
.stat{padding:30px 26px;border-right:1px solid var(--line);text-align:center}
.stat:last-child{border-right:0}
.stat .num{font-family:"Jost";font-weight:400;font-size:clamp(1.4rem,2.2vw,1.65rem);line-height:1;background:linear-gradient(120deg,#fff,var(--teal-bright));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{margin-top:10px;font-size:.84rem;color:var(--muted)}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:22px}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:var(--r);padding:30px;position:relative;transition:transform .4s var(--ease),border-color .4s,box-shadow .4s;overflow:hidden}
.card::after{content:"";position:absolute;inset:0;border-radius:var(--r);pointer-events:none;background:radial-gradient(420px 200px at 100% 0%,rgba(43,179,226,.10),transparent 60%);opacity:0;transition:opacity .4s}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 22px 50px -28px rgba(0,0,0,.7)}
.card:hover::after{opacity:1}
.card .ic{width:50px;height:50px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;background:linear-gradient(135deg,rgba(43,179,226,.18),rgba(43,179,226,.05));border:1px solid var(--line-strong)}
.card .ic svg{width:25px;height:25px;stroke:var(--teal-bright);fill:none;stroke-width:1.6}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);margin:0;font-size:.97rem}
.card .idx{position:absolute;top:24px;right:26px;font-family:"Jost";font-size:1.05rem;color:var(--muted-2)}

/* product card (links to a solution page) */
a.prod-card{display:block;color:inherit}
.prod-card .ic{transition:transform .4s var(--ease)}
.prod-card:hover .ic{transform:scale(1.06) rotate(-3deg)}
.prod-card .prod-go{margin-top:18px;display:inline-flex;align-items:center;gap:8px;color:var(--teal-bright);font-weight:600;font-size:.9rem;transition:gap .25s var(--ease)}
.prod-card:hover .prod-go{gap:13px}
.prod-card .tag-soon{position:absolute;top:22px;right:24px;font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);border:1px solid var(--line);border-radius:100px;padding:4px 9px}

/* ---------- feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,70px);align-items:center}
.split.rev .split-media{order:2}
.split-copy h2{margin-bottom:22px}
.bullet{list-style:none;padding:0;margin:24px 0 0}
.bullet li{position:relative;padding:14px 0 14px 34px;border-top:1px solid var(--line);color:var(--muted)}
.bullet li:first-child{border-top:0}
.bullet li b{color:var(--text);font-weight:600}
.bullet li::before{content:"";position:absolute;left:2px;top:21px;width:13px;height:13px;border-radius:50%;background:radial-gradient(circle at 35% 35%,var(--teal-bright),var(--teal-deep));box-shadow:0 0 0 4px rgba(43,179,226,.12)}
.media-frame{position:relative;border-radius:24px;overflow:hidden;background:radial-gradient(120% 120% at 70% 20%,rgba(43,179,226,.14),rgba(7,22,42,.2));border:1px solid var(--line);min-height:340px;display:grid;place-items:center;padding:24px}
.media-frame img{filter:drop-shadow(0 24px 50px rgba(0,0,0,.55))}

/* ---------- process flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:18px;position:relative}
.flow.flow-3{grid-template-columns:repeat(3,1fr)}
.flow .step{position:relative;padding:0 22px}
.flow .step:not(:last-child)::after{content:"";position:absolute;top:26px;right:-6px;width:calc(100% - 52px);left:auto;height:1px;background:linear-gradient(90deg,var(--line-strong),rgba(43,179,226,.05))}
.flow .dot{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;font-family:"Jost";font-size:1.25rem;color:var(--teal-bright);border:1px solid var(--line-strong);background:rgba(10,34,71,.7);position:relative;z-index:1;margin-bottom:20px}
.flow .step h3{font-size:1.12rem;margin-bottom:8px}
.flow .step p{color:var(--muted);font-size:.92rem;margin:0}

/* ---------- evidence / big numbers ---------- */
.evidence{position:relative;border:1px solid var(--line);border-radius:26px;overflow:hidden;background:linear-gradient(180deg,rgba(16,47,91,.55),rgba(9,28,56,.4))}
.evidence .ev-head{padding:clamp(34px,4vw,52px);border-bottom:1px solid var(--line)}
.ev-tag{display:inline-block;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);border:1px solid var(--line-strong);border-radius:100px;padding:6px 14px;margin-bottom:18px}
.ev-stats{display:grid;grid-template-columns:repeat(4,1fr)}
.ev-stats .e{padding:clamp(28px,3.2vw,42px);border-right:1px solid var(--line)}
.ev-stats .e:last-child{border-right:0}
.ev-stats .big{font-family:"Jost";font-weight:300;font-size:clamp(2.3rem,4vw,3.4rem);line-height:1;color:var(--white)}
.ev-stats .big em{font-style:normal;color:var(--teal-bright)}
.ev-stats .cap{margin-top:12px;color:var(--muted);font-size:.92rem}
.ev-foot{padding:26px clamp(34px,4vw,52px);display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;color:var(--muted-2);font-size:.86rem}
.ev-foot .pin b{color:var(--text);font-weight:600}

/* ---------- quote ---------- */
.quote{border-left:2px solid var(--teal);padding:8px 0 8px 30px;margin:0;font-family:"Jost";font-weight:300;font-size:clamp(1.3rem,2.4vw,2rem);line-height:1.3;color:#eaf3ff}
.quote cite{display:block;margin-top:20px;font-family:"Inter";font-style:normal;font-size:.92rem;color:var(--muted)}
.quote cite b{color:var(--teal-bright);font-weight:600}

/* ---------- pills ---------- */
.pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.pill{border:1px solid var(--line);border-radius:100px;padding:9px 18px;font-size:.88rem;color:var(--muted);background:rgba(16,47,91,.35)}
.pill b{color:var(--text)}

/* ---------- partners ---------- */
.partner-row{display:flex;flex-wrap:wrap;justify-content:center;gap:22px;max-width:940px;margin:0 auto}
.partner-chip{flex:0 0 calc(33.333% - 15px);min-width:0;background:rgba(255,255,255,.95);border-radius:16px;padding:22px 26px;display:grid;place-items:center;min-height:138px;filter:grayscale(.18);transition:transform .3s var(--ease),filter .3s,box-shadow .3s}
.partner-chip:hover{transform:translateY(-4px);filter:grayscale(0);box-shadow:0 18px 40px -22px rgba(0,0,0,.7)}
.partner-chip img{height:60px;width:auto;max-width:220px;object-fit:contain}
.partner-chip img[src*="dod"],.partner-chip img[src*="metro"]{height:94px}/* square emblems get more presence */
.partner-chip span{font-family:"Jost";font-weight:500;color:#0c2b54;font-size:1.02rem;text-align:center;line-height:1.2}
/* single partner card (e.g. Siemens, on the investor page) */
.partner-card{display:flex;align-items:center;gap:36px;flex-wrap:wrap}
.partner-logo{background:#fff;border-radius:14px;padding:18px 24px;display:grid;place-items:center;flex:none}
.partner-logo img{max-width:180px}
@media(max-width:680px){
  .partner-row{gap:14px;max-width:420px}
  .partner-chip{flex-basis:calc(50% - 7px);min-height:114px;padding:18px}
  .partner-chip img{height:46px;max-width:128px}
  .partner-chip img[src*="dod"],.partner-chip img[src*="metro"]{height:74px}
}

/* ---------- progression (breast: market disruption) ---------- */
.progression{margin-top:44px}
.prog-track{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.prog-track::before{content:"";position:absolute;left:12%;right:12%;top:48px;height:2px;background:linear-gradient(90deg,#63d6f0,#2bb3e2 42%,#2b87c4 66%,#e0607f 100%);opacity:.6;z-index:0}
.prog-stage{position:relative;z-index:1;text-align:center}
.prog-node{width:96px;height:96px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);display:grid;place-items:center;box-shadow:0 12px 30px -18px rgba(0,0,0,.85)}
.prog-node svg{width:52px;height:52px}
.prog-stage.s1{color:#63d6f0}
.prog-stage.s2{color:#2bb3e2}
.prog-stage.s3{color:#2b87c4}
.prog-stage.s4{color:#e0607f}
.prog-stage h4{font-family:"Jost";font-weight:500;font-size:1.05rem;color:var(--white);margin:0 0 4px}
.prog-stage > p{font-size:.82rem;color:var(--muted);margin:0;line-height:1.35}
.prog-windows{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.prog-win{border-radius:14px;padding:16px 18px;font-size:.92rem;line-height:1.45;color:var(--text)}
.prog-win .pw-label{display:block;font-family:"Jost";font-weight:600;font-size:.72rem;letter-spacing:.13em;text-transform:uppercase;margin-bottom:7px}
.prog-win.datchem{grid-column:1 / 4;background:linear-gradient(120deg,rgba(43,179,226,.16),rgba(43,179,226,.04));border:1px solid rgba(99,214,240,.42)}
.prog-win.datchem .pw-label{color:var(--teal-bright)}
.prog-win.late{grid-column:4 / 5;background:rgba(224,96,127,.07);border:1px solid rgba(224,96,127,.32)}
.prog-win.late .pw-label{color:#e0607f}
.prog-callout{margin:32px auto 0;max-width:760px;text-align:center;font-family:"Jost";font-weight:300;font-size:clamp(1.15rem,2.3vw,1.6rem);line-height:1.42;color:var(--white)}
.cite{margin-top:22px;text-align:center;font-size:.82rem;color:var(--muted)}
.cite em{font-style:italic}
.cite a{color:var(--muted);text-decoration:underline;text-underline-offset:2px;transition:color .25s}
.cite a:hover{color:var(--teal-bright)}
@media(max-width:760px){
  .prog-track{grid-template-columns:repeat(2,1fr);gap:26px 16px}
  .prog-track::before{display:none}
  .prog-windows{grid-template-columns:1fr;margin-top:24px}
  .prog-win.datchem,.prog-win.late{grid-column:auto}
}

/* ---------- quality & collaborators (about) ---------- */
.std{display:inline-block;font-family:"Jost";font-weight:600;font-size:.84rem;letter-spacing:.06em;color:var(--navy-ink);background:linear-gradient(135deg,var(--teal-bright),var(--teal));padding:6px 13px;border-radius:9px;margin-bottom:18px}
.collab{margin-top:50px;border-top:1px solid var(--line);padding-top:34px;text-align:center}
.collab-h{font-family:"Jost";font-weight:500;font-size:1.02rem;color:var(--muted);margin:0 0 22px;letter-spacing:.02em}
.collab-row{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.collab-chip{display:flex;flex-direction:column;gap:3px;align-items:center;background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:13px;padding:14px 22px;transition:border-color .3s var(--ease),transform .3s var(--ease)}
.collab-chip:hover{border-color:rgba(99,214,240,.42);transform:translateY(-3px)}
.collab-chip b{font-family:"Jost";font-weight:500;color:var(--white);font-size:1rem;line-height:1.2}
.collab-chip span{font-size:.75rem;color:var(--muted);letter-spacing:.03em}

/* ---------- price tag (investor commercial model) ---------- */
.price-tag{display:inline-block;background:linear-gradient(120deg,rgba(43,179,226,.16),rgba(43,179,226,.04));border:1px solid rgba(99,214,240,.4);border-radius:16px;padding:20px 26px}
.pt-num{font-family:"Jost";font-weight:300;font-size:clamp(2.2rem,5vw,3rem);line-height:1;background:linear-gradient(120deg,#fff,var(--teal-bright));-webkit-background-clip:text;background-clip:text;color:transparent}
.pt-cap{margin-top:8px;color:var(--text);font-size:.95rem}
.pt-cap b{color:var(--teal-bright);font-weight:600}

/* ---------- benefits ---------- */
.benefit{display:flex;gap:18px;align-items:flex-start}
.benefit .bnum{font-family:"Jost";font-weight:300;font-size:2.2rem;line-height:1;color:var(--teal-bright);min-width:54px}
.benefit h3{font-size:1.18rem;margin-bottom:6px}
.benefit p{color:var(--muted);font-size:.95rem;margin:0}

/* ---------- team ---------- */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.member{background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:16px;padding:22px;cursor:pointer;transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;text-align:left}
.member:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 20px 44px -26px rgba(0,0,0,.7)}
.avatar{width:64px;height:64px;border-radius:50%;object-fit:cover;object-position:50% 22%;border:1px solid var(--line-strong);background:rgba(43,179,226,.1);flex:none}
.avatar.ph{display:grid;place-items:center;font-family:"Jost";font-size:1.4rem;color:var(--teal-bright)}
.member .avatar{margin-bottom:16px}
.member h4{font-size:1.06rem;margin-bottom:3px}
.member .mrole{color:var(--teal);font-size:.82rem;letter-spacing:.02em}
.member .mquals{color:var(--muted-2);font-size:.78rem;margin-top:6px}
.founder{display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:start}
.founder .avatar{width:96px;height:96px;object-position:50% 18%}
.founder .avatar.ph{font-size:1.9rem;object-position:50% 50%}

/* people grids, Board of Directors & The DatChem Team (photos larger than founders) */
.people{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.person{background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:18px;padding:28px 20px;text-align:center;transition:transform .35s var(--ease),border-color .35s,box-shadow .35s}
.person:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 22px 48px -28px rgba(0,0,0,.7)}
.person .pphoto{width:150px;height:150px;border-radius:50%;object-fit:cover;object-position:50% 16%;margin:0 auto 18px;border:2px solid var(--line-strong);background:#fff;display:block}
.person h4{font-size:1.14rem;margin-bottom:4px}
.person .prole{color:var(--teal);font-size:.84rem;line-height:1.3}
.person .pqual{color:var(--muted-2);font-size:.75rem;margin-top:7px;letter-spacing:.02em}
.people.crew .person{padding:24px 16px}
.people.crew .pphoto{width:124px;height:124px}
.people.crew h4{font-size:1.04rem}
@media(max-width:1040px){.people,.people.crew{grid-template-columns:repeat(3,1fr)}}
@media(max-width:680px){.people,.people.crew{grid-template-columns:repeat(2,1fr)}.person .pphoto{width:132px;height:132px}.people.crew .pphoto{width:112px;height:112px}}
@media(max-width:380px){.people,.people.crew{grid-template-columns:1fr}}

/* ---------- FAQ accordion ---------- */
.faq{max-width:820px;margin:0 auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{width:100%;text-align:left;background:none;border:0;cursor:pointer;color:var(--white);font-family:"Jost";font-size:clamp(1.05rem,1.6vw,1.28rem);font-weight:400;padding:24px 44px 24px 0;position:relative;display:flex}
.faq-q::after{content:"";position:absolute;right:6px;top:50%;width:14px;height:14px;transform:translateY(-50%);background:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2363d6f0' stroke-width='2'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");transition:transform .3s var(--ease)}
.faq-item.open .faq-q::after{transform:translateY(-50%) rotate(135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease)}
.faq-a-inner{padding:0 0 24px;color:var(--muted);max-width:68ch}

/* ---------- modal ---------- */
.modal-backdrop{position:fixed;inset:0;z-index:120;background:rgba(4,12,26,.72);backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity .3s var(--ease);display:grid;place-items:center;padding:24px}
.modal-backdrop.open{opacity:1;visibility:visible}
.modal{width:min(680px,100%);max-height:88vh;overflow:auto;background:linear-gradient(180deg,#0e2a50,#0a2143);border:1px solid var(--line-strong);border-radius:22px;padding:clamp(28px,4vw,44px);position:relative;transform:translateY(16px) scale(.98);transition:transform .35s var(--ease);box-shadow:0 40px 90px -30px rgba(0,0,0,.8)}
.modal-backdrop.open .modal{transform:none}
.modal-close{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);background:rgba(7,22,42,.6);color:var(--text);cursor:pointer;display:grid;place-items:center;transition:background .2s,color .2s,transform .2s}
.modal-close:hover{background:rgba(43,179,226,.15);color:var(--teal-bright);transform:rotate(90deg)}
.modal-close svg{width:18px;height:18px}
.modal .m-head{display:flex;gap:20px;align-items:center;margin-bottom:20px}
.modal .m-head .avatar{width:78px;height:78px;border-radius:50%;object-fit:cover;border:1px solid var(--line-strong);background:rgba(43,179,226,.1);flex:none}
.modal .m-head .avatar.ph{display:grid;place-items:center;font-family:"Jost";font-size:1.7rem;color:var(--teal-bright)}
.modal h3{font-size:1.5rem;margin-bottom:4px}
.modal .m-role{color:var(--teal);font-size:.85rem;letter-spacing:.04em}
.modal .m-quals{color:var(--muted-2);font-size:.8rem;margin-top:3px}
.modal p{color:var(--muted);font-size:.97rem}
body.modal-open{overflow:hidden}

/* patent table inside modal */
.ptable{width:100%;border-collapse:collapse;font-size:.86rem}
.ptable th,.ptable td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.ptable th{color:var(--teal);font-weight:600;letter-spacing:.03em;font-size:.74rem;text-transform:uppercase}
.ptable td{color:var(--muted)}
.ptable td b{color:var(--text);font-weight:600}

/* ---------- news ---------- */
.news-card{display:flex;flex-direction:column;height:100%}
.news-card .news-date{color:var(--teal);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px}
.news-card h3{font-size:1.18rem;margin-bottom:10px}
.news-card p{color:var(--muted);font-size:.93rem;margin-bottom:18px}
.news-card .tlink{margin-top:auto}

/* featured video embed (16:9, responsive) */
.video-embed{position:relative;width:100%;aspect-ratio:16/9;border-radius:20px;overflow:hidden;border:1px solid var(--line-strong);box-shadow:0 34px 80px -36px rgba(0,0,0,.78);background:#04060c}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.video-cap{margin-top:14px;color:var(--muted-2);font-size:.85rem;display:flex;align-items:center;gap:9px}
.video-cap svg{width:16px;height:16px;stroke:var(--teal-bright);fill:none;stroke-width:1.6;flex:none}

/* ---------- contact ---------- */
.contact-block{position:relative;border-radius:28px;overflow:hidden;border:1px solid var(--line);background:linear-gradient(135deg,rgba(16,47,91,.7),rgba(9,28,56,.5));padding:clamp(40px,6vw,76px)}
.contact-block .glow2{position:absolute;right:-10%;top:-40%;width:60%;height:180%;background:radial-gradient(closest-side,rgba(43,179,226,.22),transparent 70%);pointer-events:none}
.contact-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
.contact-card{background:rgba(7,22,42,.5);border:1px solid var(--line-strong);border-radius:18px;padding:30px}
.contact-card .who{font-family:"Jost";font-size:1.3rem;color:var(--white);margin-bottom:4px}
.contact-card .role{color:var(--teal);font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:22px}
.cline{display:flex;align-items:center;gap:14px;padding:12px 0;border-top:1px solid var(--line);color:var(--text)}
.cline:first-of-type{border-top:0}
.cline svg{width:20px;height:20px;stroke:var(--teal-bright);fill:none;stroke-width:1.6;flex:none}
.cline a:hover{color:var(--teal-bright)}

/* contact form (mailto) */
.cform{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.cform .full{grid-column:1/-1}
.field label{display:block;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-2);margin-bottom:8px}
.field input,.field textarea{width:100%;background:rgba(7,22,42,.6);border:1px solid var(--line-strong);border-radius:12px;color:var(--text);font:inherit;font-size:.95rem;padding:13px 15px;transition:border-color .25s,box-shadow .25s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(43,179,226,.16)}
.field textarea{min-height:130px;resize:vertical}

/* ---------- investor gate ---------- */
.gate{min-height:74vh;display:grid;place-items:center;padding:140px 24px 80px;text-align:center}
.gate-card{width:min(440px,100%);background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line-strong);border-radius:22px;padding:42px 34px;box-shadow:0 40px 90px -36px rgba(0,0,0,.8)}
.gate-card .lock{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;margin:0 auto 22px;background:linear-gradient(135deg,rgba(43,179,226,.18),rgba(43,179,226,.05));border:1px solid var(--line-strong)}
.gate-card .lock svg{width:26px;height:26px;stroke:var(--teal-bright);fill:none;stroke-width:1.6}
.gate-card h1{font-family:"Jost";font-weight:300;font-size:1.7rem;margin-bottom:10px}
.gate-card p{color:var(--muted);font-size:.95rem;margin-bottom:22px}
.gate-card input{width:100%;text-align:center;letter-spacing:.1em}
.gate-err{color:#ff9b9b;font-size:.85rem;margin-top:14px;min-height:1.2em}

/* ---------- milestones / misc (reused) ---------- */
.miles{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.mlist{list-style:none;margin:0;padding:0}
.mlist li{display:flex;gap:14px;padding:13px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.96rem}
.mlist li:first-child{border-top:0}
.mlist .tick{flex:none;width:22px;height:22px;margin-top:2px}
.mlist li b{color:var(--text);font-weight:600}
.mhead{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.mhead .tag{font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600}
.tag.done{color:var(--teal-bright)}.tag.next{color:#9fc0e6}
.note{font-size:.82rem;color:var(--muted-2);font-style:italic;margin-top:14px}

/* ---------- footer ---------- */
footer.site-footer{border-top:1px solid var(--line);padding:64px 0 40px;margin-top:40px;position:relative}
.foot-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:flex-start}
.foot-brand{max-width:360px}
.foot-brand .brand{margin-bottom:18px}
.foot-brand p{color:var(--muted-2);font-size:.9rem}
.foot-links{display:flex;gap:56px;flex-wrap:wrap}
.foot-col h4{font-family:"Inter";font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);margin:0 0 16px;font-weight:600}
.foot-col a{display:block;color:var(--muted);font-size:.92rem;padding:6px 0;transition:color .2s}
.foot-col a:hover{color:var(--teal-bright)}
.foot-base{margin-top:42px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:14px 20px;flex-wrap:wrap;color:var(--muted-2);font-size:.82rem;align-items:center}
.foot-base>span:first-child{flex:1 1 220px;text-align:left}
.foot-base>span:nth-child(2){text-align:center}
.foot-base>span:last-child{flex:1 1 220px;text-align:right}
.foot-base a{color:var(--muted-2)}.foot-base a:hover{color:var(--teal-bright)}
@media(max-width:680px){.foot-base>span{flex:1 1 100%;text-align:center}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* ---------- section feedback tags (review only) ---------- */
.sec-tag{position:absolute;top:12px;left:12px;z-index:45;min-width:24px;height:24px;padding:0 8px;box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;font:700 12px/1 "Inter",system-ui,sans-serif;letter-spacing:.04em;color:#8fe6f8;background:rgba(5,16,33,.85);border:1px solid rgba(99,214,240,.5);border-radius:7px;box-shadow:0 2px 9px rgba(0,0,0,.45);pointer-events:none;user-select:none}

/* ---------- responsive ---------- */
@media(max-width:1040px){
  .team-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{display:none}
  .page-hero.with-media .ph-grid{grid-template-columns:1fr;gap:34px}
  .cols-4{grid-template-columns:repeat(2,1fr)}
  .flow,.flow.flow-3{grid-template-columns:repeat(2,1fr);gap:36px 0}
  .flow .step:not(:last-child)::after{display:none}
  .ev-stats{grid-template-columns:repeat(2,1fr)}
  .ev-stats .e:nth-child(2){border-right:0}
  .contact-grid{grid-template-columns:1fr;gap:30px}
  .team-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .nav-links{position:fixed;inset:74px 0 auto 0;flex-direction:column;gap:0;align-items:stretch;background:rgba(7,20,39,.98);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:10px 0 22px;transform:translateY(-130%);transition:transform .4s var(--ease);max-height:calc(100vh - 74px);overflow:auto}
  .nav-links.open{transform:none}
  .nav-links a:not(.btn){padding:15px 28px}
  .nav-links a:not(.btn)::after{display:none}
  .nav-links .btn{margin:14px 28px 0}
  .nav-item{width:100%;flex-wrap:wrap}
  .nav-item>a{flex:1;padding:15px 28px}
  .dd-toggle{padding:15px 24px}
  .dropdown{position:static;transform:none;opacity:1;visibility:visible;background:transparent;border:0;box-shadow:none;padding:0 16px;display:none;flex-basis:100%}
  .nav-item.open .dropdown{display:block}
  .dropdown a{padding:12px 12px}
  .nav-toggle{display:flex}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .cols-2,.cols-3,.cols-4{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .split.rev .split-media{order:0}
  .ev-stats{grid-template-columns:1fr}
  .ev-stats .e{border-right:0;border-bottom:1px solid var(--line)}
  .miles,.cform{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr 1fr}
  .founder{grid-template-columns:1fr}
  body{font-size:16px}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none;transition:none}
}