/* Palette taken from biogx.com (Enfold theme): navy #203454 / #2d4a77, heading #093050, cyan #00ccff / #04a6cf */
:root{
  --navy:#203454;
  --navy-2:#2b4878;
  --brand:#2d4a77;
  --blue:#04a6cf;
  --cyan:#00ccff;
  --lime:#22eeff; /* light-cyan highlight (replaces the old green accent) */
  --ink:#093050;
  --muted:#5b7090;
  --bg:#f2f6fa;
  --card:#ffffff;
  --line:rgba(9,48,80,.09);
  --grad:linear-gradient(120deg,var(--brand),var(--blue) 50%,var(--cyan));
  --grad-light:linear-gradient(120deg,var(--blue),var(--cyan) 55%,#8ff0ff);
  --radius:22px;
  --shadow:0 20px 50px -20px rgba(32,52,84,.25);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Poppins,system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:Poppins,sans-serif;line-height:1.12;letter-spacing:-.02em}
.container{width:min(1240px,100% - 32px);margin-inline:auto}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .grad-text,.covid .grad-text,.benefits .grad-text,.footer .grad-text{background-image:var(--grad-light)}
sup{font-size:.55em}

/* ---------- Buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;gap:.6rem;padding:.95rem 1.6rem;border-radius:999px;font-weight:600;font-size:.95rem;border:0;cursor:pointer;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease);isolation:isolate}
.btn svg{width:18px;height:18px;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--grad);background-size:200% 100%;color:#fff;box-shadow:0 12px 30px -10px rgba(4,166,207,.65);animation:gradShift 6s linear infinite}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px -12px rgba(0,204,255,.8)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-3px)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.link-arrow{display:inline-flex;align-items:center;gap:.4rem;font-weight:600;color:var(--blue)}
.link-arrow svg{width:16px;height:16px;transition:transform .3s var(--ease)}
.link-arrow:hover svg{transform:translateX(5px)}
@keyframes gradShift{to{background-position:200% 0}}

/* ---------- Header ---------- */
.header{position:fixed;top:0;left:0;right:0;z-index:100;transition:transform .45s var(--ease)}
.header.hide{transform:translateY(-110%)}

/* announcement bar */
.topbar{max-height:44px;overflow:hidden;background:rgba(32,52,84,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08);color:#b9cbe2;font-size:.8rem;transition:max-height .45s var(--ease),opacity .3s}
.header.scrolled .topbar,body.menu-open .topbar{max-height:0;opacity:0}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:40px}
.tb-news{display:inline-flex;align-items:center;gap:.6rem;min-width:0;color:#dbe9f8;white-space:nowrap;transition:color .3s}
.tb-news>span:nth-child(2){overflow:hidden;text-overflow:ellipsis}
.tb-news:hover{color:#fff}
.tb-news svg{flex:none;width:14px;height:14px;transition:transform .3s var(--ease)}
.tb-news:hover svg{transform:translateX(4px)}
.tb-tag{flex:none;position:relative;padding:.1rem .5rem;border-radius:6px;font-size:.65rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--navy);background:var(--lime);overflow:hidden}
.tb-tag::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.8),transparent 70%);transform:translateX(-100%);animation:sheen 3s infinite}
@keyframes sheen{60%,100%{transform:translateX(100%)}}
.tb-links{display:flex;align-items:center;gap:1.3rem;flex:none}
.tb-links a{display:inline-flex;align-items:center;gap:.4rem;transition:color .3s}
.tb-links a:hover{color:#fff}
.tb-links svg{width:14px;height:14px;stroke:var(--cyan)}
.tb-region{display:inline-flex;padding:2px;border-radius:999px;background:rgba(255,255,255,.08)}
.tb-region a{padding:.1rem .65rem;border-radius:999px;font-weight:600;font-size:.72rem}
.tb-region a.on{background:var(--cyan);color:var(--navy)}

/* main bar */
.nav-wrap{padding-top:14px;transition:padding .45s var(--ease)}
.header.scrolled .nav-wrap{padding-top:10px}
.nav{position:relative;display:flex;align-items:center;gap:1rem;padding:.55rem .6rem .55rem 1.4rem;background:rgba(255,255,255,.9);backdrop-filter:blur(18px) saturate(1.4);border:1px solid rgba(255,255,255,.7);border-radius:22px;box-shadow:0 10px 40px -15px rgba(32,52,84,.35);transition:box-shadow .45s,padding .45s var(--ease)}
.header.scrolled .nav{padding-block:.4rem;box-shadow:0 18px 50px -18px rgba(32,52,84,.55)}
.nav::after{content:"";position:absolute;left:22px;right:22px;bottom:0;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(var(--p,0));transform-origin:left;opacity:.9}
.logo{flex:none}
.logo img{height:36px;width:auto;transition:height .45s var(--ease)}
.header.scrolled .logo img{height:32px}

.menu{flex:1;display:flex;justify-content:center;gap:.1rem;list-style:none}
.menu>li>a{display:flex;align-items:center;gap:.35rem;padding:.65rem .85rem;font-size:.9rem;font-weight:500;color:var(--ink);border-radius:12px;white-space:nowrap;transition:color .3s}
@media (max-width:1240px){
  .nav{gap:.6rem;padding-left:1.1rem}
  .menu>li>a{padding:.6rem .5rem;font-size:.85rem;gap:.25rem}
  .nav-cta .btn{padding:.7rem 1.05rem;font-size:.88rem}
}
.menu>li>a:hover,.menu>li>a.active{color:var(--blue)}
.menu .chev{width:14px;height:14px;transition:transform .35s var(--ease)}
.has-mm:hover>a .chev,.has-mm:focus-within>a .chev,.has-mm.open>a .chev{transform:rotate(180deg)}
.menu-line{position:absolute;bottom:9px;left:0;width:0;height:3px;border-radius:3px;background:var(--grad);box-shadow:0 2px 10px rgba(0,204,255,.55);opacity:0;pointer-events:none;transition:left .45s var(--ease),width .45s var(--ease),opacity .3s}
.header.scrolled .menu-line{bottom:6px}

/* dropdown menu: main menu -> submenu -> sub-submenu (one design for every top-level item) */
.menu>li.has-mm{position:relative}
.search-panel{position:absolute;left:0;right:0;top:100%;padding-top:12px;opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .3s,transform .45s var(--ease),visibility .3s;z-index:5}
.nav.search-open .search-panel{opacity:1;visibility:visible;transform:none}
.search-in{background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:0 40px 80px -30px rgba(32,52,84,.5)}

.dd{position:absolute;left:-.3rem;top:100%;padding-top:16px;z-index:5;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,transform .4s var(--ease),visibility .25s}
.dd.end{left:auto;right:-.3rem}
.has-mm:hover>.dd,.has-mm:focus-within>.dd{opacity:1;visibility:visible;transform:none}
.has-mm.shut>.dd{opacity:0;visibility:hidden}
.dd-box{position:relative;width:272px;padding:.45rem;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 60px -24px rgba(32,52,84,.42),0 2px 6px rgba(32,52,84,.04)}
.dd>.dd-box::before{content:"";position:absolute;left:20px;right:20px;top:-1px;height:3px;border-radius:0 0 4px 4px;background:var(--grad)}
.dd-list{list-style:none;display:grid;gap:2px}
.dd-li{position:relative}
.dd-a{display:flex;align-items:center;gap:.7rem;padding:.55rem .65rem;border-radius:12px;font-size:.86rem;font-weight:500;line-height:1.35;color:var(--ink);transition:background .2s,color .2s}
.dd-a .t{flex:1;min-width:0;display:flex;align-items:center;flex-wrap:wrap;gap:.4rem}
.dd-ic{flex:none;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--bg);transition:background .25s,transform .35s var(--ease)}
.dd-ic svg{width:16px;height:16px;stroke:var(--blue);transition:stroke .25s}
.dd-chev{flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;color:#9fb0c6;transition:background .25s,color .25s,transform .3s var(--ease)}
.dd-chev svg{width:11px;height:11px}
.dd-sub .dd-li:not(.has)>.dd-a::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:rgba(4,166,207,.35);transition:background .2s,box-shadow .2s}
.dd-a:hover,.dd-li.open>.dd-a,.dd-li:focus-within>.dd-a{background:var(--bg);color:var(--blue)}
.dd-a:hover .dd-ic,.dd-li.open>.dd-a .dd-ic,.dd-li:focus-within>.dd-a .dd-ic{background:var(--grad);transform:rotate(-6deg)}
.dd-a:hover .dd-ic svg,.dd-li.open>.dd-a .dd-ic svg,.dd-li:focus-within>.dd-a .dd-ic svg{stroke:#fff}
.dd-li.open>.dd-a .dd-chev,.dd-li:focus-within>.dd-a .dd-chev{background:var(--grad);color:#fff;transform:translateX(2px)}
.dd-a:hover::before{background:var(--cyan)!important;box-shadow:0 0 0 4px rgba(0,204,255,.15)}
.dd-a:focus-visible{outline:2px solid var(--cyan);outline-offset:-2px}

/* flyouts */
.dd-sub{position:absolute;left:100%;top:-.5rem;padding-left:.55rem;z-index:2;opacity:0;visibility:hidden;transform:translateX(-8px);transition:opacity .2s,transform .35s var(--ease),visibility .2s}
.dd-li.open>.dd-sub,.dd-li:focus-within>.dd-sub{opacity:1;visibility:visible;transform:none}
.dd-sub .dd-box{width:300px}
.dd-sub .dd-sub .dd-box{width:340px}
.dd.flip .dd-sub{left:auto;right:100%;padding-left:0;padding-right:.55rem;transform:translateX(8px)}
.dd.flip .dd-li.open>.dd-sub,.dd.flip .dd-li:focus-within>.dd-sub{transform:none}
.dd.flip .dd-chev svg{transform:scaleX(-1)}
.dd.flip .dd-li.open>.dd-a .dd-chev{transform:translateX(-2px)}
.dd-hd{display:flex;align-items:center;justify-content:space-between;gap:.8rem;padding:.45rem .65rem .6rem;margin-bottom:.3rem;border-bottom:1px solid var(--line)}
.dd-hd b{font-size:.7rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.dd-hd a{display:inline-flex;align-items:center;gap:.3rem;flex:none;font-size:.76rem;font-weight:600;color:var(--blue);transition:gap .3s var(--ease)}
.dd-hd a:hover{gap:.5rem}
.dd-hd a svg{width:12px;height:12px}
.dd-sub .dd-a{font-size:.84rem}
.mm-badge{padding:.05rem .4rem;border-radius:6px;font-size:.58rem;font-weight:700;letter-spacing:.06em;background:var(--lime);color:var(--navy)}
.mm-badge.eua{background:rgba(4,166,207,.12);color:var(--blue)}


.search-in{padding:1.4rem 1.6rem}
.search-field{display:flex;align-items:center;gap:.8rem;padding-bottom:1rem;border-bottom:2px solid var(--line);transition:border-color .3s}
.search-field:focus-within{border-color:var(--cyan)}
.search-field svg{flex:none;width:22px;height:22px;stroke:var(--blue)}
.search-field input{flex:1;min-width:0;border:0;outline:0;background:none;font:500 1.2rem Poppins,sans-serif;color:var(--ink)}
.search-field kbd{font:600 .7rem Poppins,sans-serif;padding:.2rem .5rem;border-radius:6px;background:var(--bg);color:var(--muted)}
.search-tags{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:1rem;font-size:.82rem;color:var(--muted)}
.search-tags a{padding:.35rem .85rem;border-radius:999px;background:var(--bg);color:var(--ink);font-weight:500;transition:background .3s,color .3s}
.search-tags a:hover{background:var(--navy);color:#fff}

.nav-cta{display:flex;align-items:center;gap:.5rem;flex:none}
.nav-cta .btn{padding:.75rem 1.3rem}
.icon-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);display:grid;place-items:center;cursor:pointer;transition:background .3s,color .3s,transform .4s var(--ease)}
.icon-btn:hover,.nav.search-open .icon-btn{background:var(--navy);color:#fff;border-color:transparent}
.icon-btn svg{width:19px;height:19px}
.burger{display:none;width:44px;height:44px;border-radius:50%;border:0;background:var(--navy);cursor:pointer;position:relative}
.burger span,.burger span::before{position:absolute;left:50%;height:2px;background:#fff;border-radius:2px;content:"";transition:.4s var(--ease)}
.burger span{top:calc(50% - 4px);width:18px;margin-left:-9px}
.burger span::before{top:8px;left:0;width:12px}
.burger:hover span::before{width:18px}
body.menu-open .burger{background:var(--grad)}
body.menu-open .burger span{top:50%;transform:rotate(45deg)}
body.menu-open .burger span::before{top:0;width:18px;transform:rotate(-90deg)}

/* full-screen mobile menu */
.m-menu{display:none}
body.menu-open{overflow:hidden}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh;background:radial-gradient(1200px 600px at 80% 20%,#2d4a77 0%,transparent 60%),radial-gradient(900px 500px at 10% 90%,#1c3966 0%,transparent 60%),var(--navy);color:#fff;overflow:hidden;display:flex;align-items:center;padding:180px 0 90px}
#helix{position:absolute;inset:0;width:100%;height:100%;opacity:.9}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);pointer-events:none}
.cursor-glow{position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(0,204,255,.22),transparent 65%);transform:translate(-50%,-50%);pointer-events:none;transition:left .25s linear,top .25s linear;z-index:1}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center}
.slides{position:relative;min-height:400px}
.slide{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;pointer-events:none}
.slide.active{pointer-events:auto}
.slide>*{opacity:0;transform:translateY(40px);filter:blur(6px);transition:all .8s var(--ease)}
.slide.active>*{opacity:1;transform:none;filter:none}
.slide.active>*:nth-child(2){transition-delay:.1s}
.slide.active>*:nth-child(3){transition-delay:.2s}
.slide.active>*:nth-child(4){transition-delay:.3s}
.slide.active>*:nth-child(5){transition-delay:.4s}
.eyebrow{display:inline-flex;align-items:center;gap:.55rem;align-self:flex-start;padding:.45rem 1rem;border-radius:999px;background:rgba(0,204,255,.12);border:1px solid rgba(0,204,255,.35);font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#9be9ff}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 0 rgba(34,238,255,.7);animation:ping 1.8s infinite}
@keyframes ping{70%{box-shadow:0 0 0 10px rgba(34,238,255,0)}100%{box-shadow:0 0 0 0 rgba(34,238,255,0)}}
.slide h1{font-size:clamp(2.4rem,5.4vw,4.6rem);font-weight:800;margin:1.2rem 0 1rem}
.slide p{font-size:1.12rem;color:#b9cbe2;max-width:520px}
.slide p em{color:#fff;font-style:italic}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.1rem}
.chip{padding:.4rem .85rem;border-radius:999px;font-size:.82rem;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15)}
.slide .actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}

.hero-visual{position:relative;aspect-ratio:1/1;max-width:540px;justify-self:center;width:100%}
.orb{position:absolute;inset:6%;border-radius:42% 58% 63% 37%/41% 44% 56% 59%;background:var(--grad-light);animation:morph 12s ease-in-out infinite,spin 30s linear infinite;filter:blur(2px);opacity:.9}
.orb.two{inset:0;background:conic-gradient(from 0deg,transparent,rgba(0,204,255,.5),transparent 40%);filter:blur(30px);animation-duration:16s,20s}
@keyframes morph{50%{border-radius:58% 42% 38% 62%/55% 61% 39% 45%}}
@keyframes spin{to{transform:rotate(360deg)}}
.visual-frame{position:absolute;inset:11%;border-radius:40% 60% 55% 45%/50% 45% 55% 50%;overflow:hidden;animation:morph 12s ease-in-out infinite reverse;box-shadow:0 30px 80px -20px rgba(0,0,0,.6)}
.visual-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.15);transition:opacity 1s var(--ease),transform 6s linear}
.visual-frame img.active{opacity:1;transform:scale(1)}
.float-card{position:absolute;z-index:3;display:flex;align-items:center;gap:.7rem;padding:.8rem 1rem;border-radius:16px;background:rgba(255,255,255,.12);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.22);font-size:.85rem;font-weight:600;animation:bob 5s ease-in-out infinite}
.float-card .ic{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--grad)}
.float-card .ic svg{width:20px;height:20px}
.float-card small{display:block;font-weight:400;color:#b9cbe2;font-size:.75rem}
.fc1{top:8%;left:-4%}
.fc2{bottom:12%;right:-6%;animation-delay:-2.5s}
@keyframes bob{50%{transform:translateY(-14px)}}

.slider-nav{position:absolute;left:0;right:0;bottom:36px;z-index:3}
.slider-nav .container{display:flex;gap:1rem;align-items:center}
.dots{display:flex;gap:.8rem;flex:1}
.dot{flex:1;max-width:180px;background:none;border:0;color:#8ea6c4;text-align:left;cursor:pointer;font:inherit;font-size:.78rem;letter-spacing:.04em}
.dot .bar{display:block;height:3px;border-radius:3px;background:rgba(255,255,255,.18);overflow:hidden;margin-bottom:.5rem}
.dot .bar i{display:block;height:100%;width:0;background:var(--grad)}
.dot.active{color:#fff}
.dot.active .bar i{animation:fill 7s linear forwards}
@keyframes fill{to{width:100%}}
.scroll-hint{display:flex;align-items:center;gap:.6rem;font-size:.78rem;color:#8ea6c4}
.mouse{width:22px;height:34px;border:2px solid #8ea6c4;border-radius:12px;position:relative}
.mouse::after{content:"";position:absolute;left:50%;top:6px;width:3px;height:7px;border-radius:2px;background:var(--cyan);transform:translateX(-50%);animation:wheel 1.6s infinite}
@keyframes wheel{to{transform:translate(-50%,10px);opacity:0}}

/* ---------- Marquee ---------- */
.marquee{background:var(--grad);color:#fff;padding:1rem 0;overflow:hidden;transform:rotate(-1.2deg) scale(1.02);margin-top:-22px;position:relative;z-index:5;box-shadow:0 20px 40px -20px rgba(4,166,207,.6)}
.marquee-track{display:flex;gap:3rem;width:max-content;animation:marquee 35s linear infinite;font-family:Poppins;font-weight:600;font-size:1.05rem;white-space:nowrap}
.marquee-track span{display:inline-flex;align-items:center;gap:3rem}
.marquee-track span::after{content:"✦";opacity:.7}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- Sections ---------- */
section{position:relative}
.section{padding:120px 0}
.sec-head{max-width:720px;margin-bottom:3.5rem}
.sec-head.center{margin-inline:auto;text-align:center}
.kicker{display:inline-flex;align-items:center;gap:.6rem;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.kicker::before{content:"";width:28px;height:2px;background:var(--grad)}
.sec-head h2{font-size:clamp(2rem,4vw,3.2rem);font-weight:800;margin:.8rem 0 1rem}
.sec-head p{color:var(--muted);font-size:1.08rem}

/* reveal */
.reveal{opacity:0;transform:translateY(50px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.left{transform:translateX(-60px)}
.reveal.right{transform:translateX(60px)}
.reveal.zoom{transform:scale(.9)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}

/* ---------- Xfree panel ---------- */
.xfree{background:var(--bg);overflow:hidden}
.xfree::before{content:"";position:absolute;width:640px;height:640px;right:-220px;top:-180px;border-radius:50%;background:radial-gradient(circle,rgba(0,204,255,.14),transparent 65%);pointer-events:none}
.xf-top{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:end;margin-bottom:2.6rem}
.xf-top .sec-head{margin-bottom:0}

/* workflow: sample -> (extraction skipped) -> PCR */
.xf-flow{position:relative;display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:.6rem;padding:1.4rem;border-radius:24px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.xf-step{display:flex;flex-direction:column;align-items:center;gap:.55rem;text-align:center;font-size:.8rem;font-weight:600;color:var(--ink)}
.xf-step .ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:rgba(4,166,207,.1)}
.xf-step .ic svg{width:26px;height:26px;stroke:var(--blue)}
.xf-step small{display:block;font-weight:500;font-size:.72rem;color:var(--muted)}
.xf-step.skip{color:var(--muted)}
.xf-step.skip .ic{background:repeating-linear-gradient(45deg,#f2f6fa 0 6px,#e6edf5 6px 12px);position:relative}
.xf-step.skip .ic svg{stroke:#9fb0c6}
.xf-step.skip .ic::after{content:"";position:absolute;left:-6px;right:-6px;top:50%;height:2px;background:#e5484d;transform:rotate(-35deg);border-radius:2px}
.xf-step.skip>span:last-child{text-decoration:line-through;text-decoration-color:#e5484d}
.xf-step.go .ic{background:var(--grad)}
.xf-step.go .ic svg{stroke:#fff}
.xf-arrow{width:34px;height:2px;background:linear-gradient(90deg,var(--line),var(--cyan));position:relative;overflow:hidden;border-radius:2px}
.xf-arrow::after{content:"";position:absolute;top:0;left:-40%;width:40%;height:100%;background:var(--cyan);animation:flow 1.8s linear infinite}
@keyframes flow{to{left:100%}}
.xf-flow-note{grid-column:1/-1;margin-top:.6rem;padding-top:.9rem;border-top:1px dashed var(--line);display:flex;justify-content:center;gap:1.4rem;flex-wrap:wrap;font-size:.78rem;color:var(--muted)}
.xf-flow-note b{color:var(--ink)}

/* filters */
.xf-bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1.6rem}
.xf-filters{display:inline-flex;gap:.4rem;padding:5px;border-radius:999px;background:#fff;border:1px solid var(--line)}
.xf-filter{border:0;background:none;cursor:pointer;padding:.6rem 1.1rem;border-radius:999px;font:600 .85rem Poppins,sans-serif;color:var(--muted);display:inline-flex;align-items:center;gap:.45rem;transition:background .35s,color .35s}
.xf-filter i{font-style:normal;font-size:.7rem;padding:.05rem .45rem;border-radius:999px;background:var(--bg);color:var(--muted);transition:inherit}
.xf-filter:hover{color:var(--ink)}
.xf-filter.active{background:var(--navy);color:#fff}
.xf-filter.active i{background:rgba(255,255,255,.15);color:#fff}
.xf-bar p{font-size:.88rem;color:var(--muted)}

/* bento grid */
.xf-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(150px,auto);gap:1.2rem}
.xf-card{position:relative;display:flex;flex-direction:column;border-radius:22px;background:#fff;border:1px solid var(--line);overflow:hidden;transition:opacity .9s var(--ease),transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s}
.xf-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:transparent}
.xf-card .media{position:relative;aspect-ratio:4/3;overflow:hidden}
.xf-card .media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.xf-card:hover .media img{transform:scale(1.08)}
.xf-card .media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(32,52,84,.45))}
.xf-card .no{position:absolute;top:.8rem;left:.8rem;z-index:1;padding:.25rem .6rem;border-radius:999px;font-size:.72rem;font-weight:700;color:#fff;background:rgba(32,52,84,.55);backdrop-filter:blur(6px)}
.xf-card .cat{position:absolute;top:.8rem;right:.8rem;z-index:1;display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .65rem;border-radius:999px;font-size:.7rem;font-weight:600;background:rgba(255,255,255,.92);color:var(--ink)}
.xf-card .cat::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--blue)}
.xf-card[data-cat="lesion"] .cat::before{background:#e0569b}
.xf-card .body{flex:1;display:flex;align-items:flex-end;justify-content:space-between;gap:.8rem;padding:1.1rem 1.2rem 1.2rem}
.xf-card h4{font-size:1rem;font-weight:600;line-height:1.3}
.xf-card .targets{display:block;margin-top:.3rem;font-size:.78rem;color:var(--muted);font-style:italic}
.xf-card .go{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--bg);color:var(--blue);transition:background .4s,color .4s,transform .4s var(--ease)}
.xf-card .go svg{width:16px;height:16px}
.xf-card:hover .go{background:var(--grad);color:#fff;transform:rotate(-45deg)}

/* featured card */
.xf-card.feature{grid-column:span 2;grid-row:span 2;color:#fff;justify-content:flex-end;min-height:480px;border:0;isolation:isolate}
.xf-card.feature .media{position:absolute;inset:0;aspect-ratio:auto;z-index:-1}
.xf-card.feature .media::after{background:linear-gradient(180deg,rgba(32,52,84,.1) 20%,rgba(32,52,84,.94) 78%)}
.xf-card.feature .body{flex:none;flex-direction:column;align-items:flex-start;gap:.9rem;padding:2rem}
.xf-card.feature h4{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:700}
.xf-card.feature p{color:#c9d8ea;font-size:.95rem;max-width:440px}
.xf-card.feature .targets{color:#9be9ff}
.eua{display:inline-flex;align-items:center;gap:.45rem;padding:.4rem .85rem;border-radius:999px;font-size:.75rem;font-weight:700;letter-spacing:.04em;background:rgba(34,238,255,.16);border:1px solid rgba(34,238,255,.45);color:#b8f6ff;backdrop-filter:blur(6px)}
.eua svg{width:15px;height:15px}
.xf-points{display:flex;flex-wrap:wrap;gap:.45rem;list-style:none}
.xf-points li{padding:.3rem .75rem;border-radius:999px;font-size:.75rem;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2)}
.xf-card.feature .btn{margin-top:.4rem}

/* custom-assay CTA tile */
.xf-cta{grid-column:span 2;position:relative;display:flex;flex-direction:column;justify-content:space-between;gap:1.2rem;padding:2rem;border-radius:22px;color:#fff;overflow:hidden;background:radial-gradient(400px 260px at 100% 0,rgba(0,204,255,.35),transparent 60%),var(--navy)}
.xf-cta::after{content:"";position:absolute;right:-50px;bottom:-50px;width:200px;height:200px;border-radius:50%;border:2px dashed rgba(255,255,255,.18);animation:spin 40s linear infinite}
.xf-cta h4{font-size:1.35rem;font-weight:700}
.xf-cta p{color:#b9cbe2;font-size:.92rem;max-width:380px;margin-top:.4rem}
.xf-cta .btn{align-self:flex-start;position:relative;z-index:1}
.xf-card.is-hidden{display:none}
.xf-card.pop{animation:pop .6s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(20px) scale(.97)}}
.tagline{margin-top:2.4rem;text-align:center;font-family:Poppins;font-size:1.3rem;font-weight:600}
.tagline em{font-style:italic}


/* ---------- COVID feature ---------- */
.covid{background:var(--navy);color:#fff;overflow:hidden}
.covid::before{content:"";position:absolute;width:700px;height:700px;right:-200px;top:-200px;border-radius:50%;background:radial-gradient(circle,rgba(4,166,207,.45),transparent 65%)}
.covid-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.covid .sec-head p{color:#b9cbe2}
.covid .kicker{color:var(--cyan)}
.badge-eua{display:inline-flex;align-items:center;gap:.7rem;padding:.7rem 1.1rem;border-radius:14px;background:rgba(34,238,255,.12);border:1px solid rgba(34,238,255,.4);color:#b8f6ff;font-weight:600;font-size:.92rem;margin-bottom:1.6rem}
.badge-eua svg{width:22px;height:22px}
.checks{list-style:none;display:grid;gap:1rem;margin-bottom:2.2rem}
.checks li{display:flex;align-items:center;gap:1rem;padding:1rem 1.2rem;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);transition:background .3s,transform .3s var(--ease)}
.checks li:hover{background:rgba(255,255,255,.1);transform:translateX(8px)}
.checks .tick{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--grad)}
.checks .tick svg{width:18px;height:18px}
.covid .actions{display:flex;flex-wrap:wrap;gap:.8rem}
.covid-visual{position:relative}
.covid-visual .frame{position:relative;border-radius:28px;overflow:hidden;box-shadow:0 40px 80px -30px rgba(0,0,0,.7)}
/* light lab illustration: tilted 96-well plate + live amplification card */
.lab{position:relative;aspect-ratio:4/3;overflow:hidden;color:var(--ink);background:radial-gradient(420px 260px at 85% 0,#fff,transparent 70%),linear-gradient(160deg,#f7fcff 0%,#e4f6fd 55%,#cfeefa 100%)}
.lab::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(4,166,207,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(4,166,207,.09) 1px,transparent 1px);background-size:34px 34px;mask-image:radial-gradient(ellipse at 45% 60%,#000 20%,transparent 75%)}
.lab-stage{position:absolute;inset:0;perspective:1300px}
.lab-plate{position:absolute;left:44%;top:60%;width:66%;aspect-ratio:3/2;transform:translate(-50%,-50%) rotateX(55deg) rotateZ(-30deg);border-radius:18px;padding:5.5% 5%;display:grid;grid-template-columns:repeat(12,1fr);gap:5px;background:linear-gradient(145deg,#fff,#eaf3f8);box-shadow:inset 0 1px 0 #fff,0 0 0 1px rgba(9,48,80,.07),0 12px 0 -2px #cfe2ec,0 12px 0 -1px rgba(9,48,80,.08),40px 50px 60px -20px rgba(32,52,84,.45)}
.lab-plate i{aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 40% 35%,#fff,#d6e5ee);box-shadow:inset 0 2px 3px rgba(9,48,80,.2)}
.lab-plate i.on{background:radial-gradient(circle at 40% 35%,#c8f6ff,#00ccff 55%,#04a6cf);box-shadow:inset 0 2px 3px rgba(9,48,80,.25);animation:wellIn .7s var(--ease) both,wellGlow 3.2s ease-in-out infinite}
@keyframes wellIn{from{background:radial-gradient(circle at 40% 35%,#fff,#d6e5ee);transform:scale(.5)}}
@keyframes wellGlow{0%,100%{background:radial-gradient(circle at 40% 35%,#c8f6ff,#00ccff 55%,#04a6cf);box-shadow:inset 0 2px 3px rgba(9,48,80,.25)}50%{background:radial-gradient(circle at 40% 35%,#e6fcff,#3fdcff 55%,#04a6cf);box-shadow:inset 0 2px 3px rgba(9,48,80,.2),0 0 10px rgba(0,204,255,.7)}}
.lab-plate .scan{position:absolute;top:4%;bottom:4%;width:12%;left:0;border-radius:10px;background:linear-gradient(90deg,transparent,rgba(0,204,255,.28),transparent);animation:scan 4s ease-in-out infinite}
@keyframes scan{0%{left:2%}50%{left:86%}100%{left:2%}}

.lab-card,.lab-chip{position:absolute;z-index:2;background:rgba(255,255,255,.78);backdrop-filter:blur(12px);border:1px solid #fff;box-shadow:0 22px 44px -20px rgba(32,52,84,.45)}
.lab-card{right:5%;top:7%;width:47%;padding:12px 14px 10px;border-radius:16px;animation:bob 6s ease-in-out infinite}
.lab-card header{display:flex;align-items:center;justify-content:space-between;gap:.5rem;font-size:.7rem;font-weight:600;color:var(--ink)}
.lab-card header span{display:inline-flex;align-items:center;gap:.4rem}
.lab-card header span::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 rgba(0,204,255,.6);animation:ping 1.8s infinite}
.lab-card header em{font-style:normal;font-size:.6rem;letter-spacing:.08em;padding:.1rem .45rem;border-radius:6px;background:rgba(4,166,207,.12);color:var(--blue)}
.lab-card svg{display:block;width:100%;height:auto;margin-top:6px}
.lab-card .curve{fill:none;stroke-width:2.4;stroke-linecap:round;stroke-dasharray:260;stroke-dashoffset:0;animation:draw 5s var(--ease) infinite backwards}
.lab-card .curve.c2{animation-delay:.35s}
.lab-card .curve.c3{animation-delay:.7s}
@keyframes draw{0%{stroke-dashoffset:260;opacity:1}45%,88%{stroke-dashoffset:0;opacity:1}100%{stroke-dashoffset:0;opacity:0}}
.lab-card .legend{display:flex;gap:.7rem;margin-top:4px;font-size:.6rem;color:var(--muted)}
.lab-card .legend b{display:inline-block;width:10px;height:3px;border-radius:2px;margin-right:4px;vertical-align:middle}
.lab-chip{left:5%;bottom:8%;display:flex;align-items:center;gap:.6rem;padding:.6rem .85rem;border-radius:14px;font-size:.75rem;font-weight:600;animation:bob 6s ease-in-out infinite;animation-delay:-3s}
.lab-chip .ic{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--grad)}
.lab-chip .ic svg{width:16px;height:16px;stroke:#fff}
.lab-chip small{display:block;font-weight:500;font-size:.66rem;color:var(--muted)}
.covid-visual .ring{position:absolute;width:150px;height:150px;right:-30px;bottom:-40px;border-radius:50%;display:grid;place-items:center;background:var(--navy-2);border:1px solid rgba(255,255,255,.15);box-shadow:0 20px 50px -10px rgba(0,0,0,.6)}
.covid-visual .ring svg.txt{position:absolute;inset:0;width:100%;height:100%;animation:spin 18s linear infinite}
.covid-visual .ring b{font-family:Poppins;font-size:1.6rem}

/* ---------- Just Add Water ---------- */
.water{background:linear-gradient(180deg,#e3f8ff,var(--bg));overflow:hidden}
.water-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.tube-stage{position:relative;height:520px;display:grid;place-items:center}
.ripple{position:absolute;width:340px;height:340px;border-radius:50%;border:2px solid rgba(0,204,255,.35);animation:ripple 4s ease-out infinite}
.ripple:nth-child(2){animation-delay:1.3s}
.ripple:nth-child(3){animation-delay:2.6s}
@keyframes ripple{from{transform:scale(.4);opacity:1}to{transform:scale(1.5);opacity:0}}
.tube{position:relative;width:110px;height:360px;animation:bob 6s ease-in-out infinite}
.tube .cap{position:absolute;top:0;left:-8px;right:-8px;height:58px;border-radius:12px 12px 6px 6px;background:linear-gradient(90deg,#2b4878,#00ccff 50%,#2b4878);box-shadow:inset 0 -6px 0 rgba(0,0,0,.15)}
.tube .cap::after{content:"";position:absolute;left:10px;right:10px;top:10px;height:6px;border-radius:3px;background:rgba(255,255,255,.35)}
.tube .body{position:absolute;top:52px;left:0;right:0;bottom:0;border-radius:6px 6px 55px 55px/6px 6px 90px 90px;background:rgba(255,255,255,.55);border:3px solid rgba(43,72,120,.25);overflow:hidden;backdrop-filter:blur(4px);box-shadow:inset 10px 0 20px rgba(255,255,255,.8),0 30px 60px -20px rgba(4,166,207,.4)}
.tube .pellet{position:absolute;left:50%;bottom:14px;width:46px;height:24px;margin-left:-23px;border-radius:50%;background:radial-gradient(circle at 40% 35%,#fff,#dfe8f2);box-shadow:0 2px 4px rgba(0,0,0,.1);transition:opacity 1s,transform 1s}
.tube .liquid{position:absolute;left:0;right:0;bottom:0;height:0;background:linear-gradient(180deg,rgba(0,204,255,.75),rgba(4,166,207,.85))}
.tube .liquid::before{content:"";position:absolute;left:-50%;top:-10px;width:200%;height:20px;background:radial-gradient(ellipse at center,rgba(0,204,255,.75) 60%,transparent 62%) 0 0/40px 20px repeat-x;animation:wave 1.5s linear infinite}
@keyframes wave{to{transform:translateX(40px)}}
.water.in-view .tube .liquid{animation:pour 3s 0.6s var(--ease) forwards}
.water.in-view .tube .pellet{animation:dissolve 2s 1.6s forwards}
@keyframes pour{to{height:62%}}
@keyframes dissolve{to{opacity:0;transform:scale(.3)}}
.bubble{position:absolute;bottom:10px;width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.75);opacity:0}
.water.in-view .bubble{animation:rise 3s 2.5s infinite}
.bubble:nth-child(2){left:30%;animation-delay:2.9s!important;width:6px;height:6px}
.bubble:nth-child(3){left:55%;animation-delay:3.4s!important}
.bubble:nth-child(4){left:70%;animation-delay:3.9s!important;width:5px;height:5px}
@keyframes rise{0%{opacity:0;transform:translateY(0)}20%{opacity:1}100%{opacity:0;transform:translateY(-180px)}}
.drop{position:absolute;top:-30px;left:50%;width:18px;height:24px;margin-left:-9px;border-radius:50% 50% 50% 50%/60% 60% 40% 40%;background:var(--cyan);opacity:0}
.water.in-view .drop{animation:drop 1.8s .1s ease-in infinite}
.water.in-view .drop+.drop{animation-delay:1s}
@keyframes drop{0%{opacity:0;transform:translateY(-70px) scale(.6)}8%{opacity:1;transform:translateY(-60px) scale(1)}62%{opacity:1}78%,100%{opacity:0;transform:translateY(120px)}}
.tube-label{position:absolute;padding:.6rem 1rem;border-radius:14px;background:#fff;box-shadow:var(--shadow);font-size:.85rem;font-weight:600}
.tube-label.a{top:22%;left:4%}
.tube-label.b{bottom:22%;right:4%}
.tube-label span{color:var(--blue)}
.water h2 .big{display:block;font-size:clamp(2.6rem,5.5vw,4.4rem)}
.quote{position:relative;margin:2rem 0;padding:1.8rem 1.8rem 1.6rem;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);border-left:4px solid var(--cyan)}
.quote::before{content:"\201C";position:absolute;top:-30px;right:20px;font-family:Poppins;font-size:7rem;line-height:1;color:rgba(0,204,255,.2)}
.quote p{font-size:1.05rem;font-style:italic;color:var(--ink)}
.quote cite{display:flex;align-items:center;gap:.8rem;margin-top:1.1rem;font-style:normal;font-size:.88rem;color:var(--muted)}
.quote cite b{display:block;color:var(--ink)}
.quote .av{width:42px;height:42px;border-radius:50%;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:700;font-family:Poppins}

/* ---------- One tube any platform ---------- */
.platform{background:var(--bg)}
.tabs{display:inline-flex;padding:6px;border-radius:999px;background:#fff;box-shadow:0 10px 30px -15px rgba(32,52,84,.25);position:relative;margin-bottom:2.5rem}
.tab{position:relative;z-index:1;border:0;background:none;padding:.8rem 1.6rem;border-radius:999px;font:600 .95rem Poppins;cursor:pointer;color:var(--muted);display:flex;align-items:center;gap:.5rem;transition:color .3s}
.tab.active{color:#fff}
.tab-pill{position:absolute;top:6px;bottom:6px;left:6px;border-radius:999px;background:var(--navy);transition:all .5s var(--ease)}
.tab img{width:22px;height:auto;border-radius:3px}
.panel{display:none;grid-template-columns:1.1fr .9fr;gap:2.5rem;align-items:start}
.panel.active{display:grid;animation:panelIn .7s var(--ease)}
@keyframes panelIn{from{opacity:0;transform:translateY(30px)}}
.panel-text h3{font-size:1.8rem;margin-bottom:1rem}
.panel-text p{color:var(--muted);margin-bottom:1rem}
.link-list{display:grid;gap:.8rem}
.link-list a{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1.15rem 1.4rem;border-radius:16px;background:#fff;border:1px solid var(--line);font-weight:600;transition:all .4s var(--ease);position:relative;overflow:hidden}
.link-list a::before{content:"";position:absolute;inset:0;background:var(--navy);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease);z-index:0}
.link-list a>*{position:relative;z-index:1}
.link-list a:hover{color:#fff;border-color:var(--navy)}
.link-list a:hover::before{transform:scaleX(1)}
.link-list a .arr{width:34px;height:34px;flex:none;border-radius:50%;display:grid;place-items:center;background:var(--bg);color:var(--blue);transition:all .4s var(--ease)}
.link-list a:hover .arr{background:var(--grad);color:#fff;transform:rotate(-45deg)}
.link-list svg{width:16px;height:16px}

/* ---------- Benefits ---------- */
.benefits{background:var(--navy);color:#fff;overflow:hidden}
.benefits .sec-head p{color:#b9cbe2}
.benefits .kicker{color:var(--cyan)}
.ben-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.ben{position:relative;padding:2rem 1.6rem;border-radius:var(--radius);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);overflow:hidden;transition:transform .5s var(--ease),background .5s}
.ben::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease)}
.ben:hover{transform:translateY(-10px);background:rgba(255,255,255,.08)}
.ben:hover::after{transform:scaleX(1)}
.ben .idx{position:absolute;top:1rem;right:1.3rem;font-family:Poppins;font-weight:800;font-size:3.4rem;line-height:1;color:rgba(255,255,255,.05);transition:color .5s}
.ben:hover .idx{color:rgba(0,204,255,.18)}
.ben .icon{width:64px;height:64px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(4,166,207,.3),rgba(0,204,255,.15));border:1px solid rgba(0,204,255,.3);margin-bottom:1.6rem;transition:transform .6s var(--ease)}
.ben:hover .icon{transform:rotate(-8deg) scale(1.08)}
.ben .icon svg{width:30px;height:30px;stroke:var(--cyan)}
.ben h4{font-size:1rem;letter-spacing:.06em;margin-bottom:.6rem}
.ben p{color:#a9bcd4;font-size:.95rem}
.ben-bg{position:absolute;inset:0;pointer-events:none;opacity:.5}
.ben-bg span{position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(0,204,255,.25),transparent 70%);animation:drift 14s ease-in-out infinite}
@keyframes drift{50%{transform:translate(60px,-40px) scale(1.2)}}

/* ---------- News ---------- */
.news{background:linear-gradient(180deg,var(--bg),#fff)}
.news::before{content:"Insights";position:absolute;right:-1rem;top:40px;font-family:Poppins;font-weight:800;font-size:clamp(5rem,14vw,11rem);line-height:1;letter-spacing:-.05em;color:transparent;-webkit-text-stroke:1px rgba(4,166,207,.12);pointer-events:none;user-select:none}
.news-top{position:relative;display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;flex-wrap:wrap;margin-bottom:3rem}
.news-top .sec-head{margin-bottom:0}
.news-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:1.5rem}

/* featured story */
.nf{position:relative;isolation:isolate;display:flex;flex-direction:column;justify-content:space-between;gap:2rem;min-height:580px;padding:1.6rem;border-radius:28px;overflow:hidden;color:#fff;box-shadow:var(--shadow);transition:opacity .9s var(--ease),transform .6s var(--ease),box-shadow .6s var(--ease)}
.nf img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform 1.4s var(--ease)}
.nf::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(32,52,84,.2) 0%,rgba(32,52,84,.15) 22%,rgba(32,52,84,.75) 48%,rgba(32,52,84,.95) 80%)}
.nf:hover{transform:translateY(-6px);box-shadow:0 40px 80px -30px rgba(32,52,84,.55)}
.nf:hover img{transform:scale(1.06)}
.nf-top{display:flex;justify-content:space-between;align-items:center;gap:.6rem;flex-wrap:wrap}
.glass{display:inline-flex;align-items:center;gap:.45rem;padding:.4rem .85rem;border-radius:999px;font-size:.75rem;font-weight:600;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);backdrop-filter:blur(10px)}
.glass.hot{background:var(--lime);border-color:transparent;color:var(--navy)}
.nf-body{max-width:600px;display:flex;flex-direction:column;gap:.9rem}
.n-meta{display:inline-flex;align-items:center;gap:.5rem;font-size:.8rem;font-weight:500;color:var(--muted)}
.n-meta svg{width:14px;height:14px}
.nf .n-meta{color:#9be9ff}
.nf h3{font-size:clamp(1.35rem,2.2vw,1.9rem);font-weight:700;line-height:1.25}
.nf p{color:#c9d8ea;font-size:.98rem}
.n-read{display:inline-flex;align-items:center;gap:.8rem;font-weight:600;font-size:.92rem}
.n-read i{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--navy);transition:background .4s,color .4s,transform .45s var(--ease)}
.n-read svg{width:18px;height:18px}
.nf:hover .n-read i{background:var(--grad);color:#fff;transform:rotate(-45deg)}

/* side list */
.news-side{display:flex;flex-direction:column;gap:1rem}
.nrow{position:relative;display:grid;grid-template-columns:128px 1fr auto;align-items:center;gap:1.1rem;padding:.85rem 1.1rem .85rem .85rem;border-radius:22px;background:#fff;border:1px solid var(--line);overflow:hidden;transition:opacity .9s var(--ease),transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s}
.nrow::before{content:"";position:absolute;left:0;top:18%;bottom:18%;width:3px;border-radius:0 3px 3px 0;background:var(--grad);transform:scaleY(0);transition:transform .45s var(--ease)}
.nrow:hover{transform:translateX(6px);box-shadow:var(--shadow);border-color:transparent}
.nrow:hover::before{transform:scaleY(1)}
.nrow .thumb{position:relative;aspect-ratio:1;border-radius:16px;overflow:hidden}
.nrow .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.nrow:hover .thumb img{transform:scale(1.1)}
.nrow .idx{position:absolute;left:.5rem;top:.5rem;padding:.12rem .45rem;border-radius:7px;font-size:.66rem;font-weight:700;color:#fff;background:rgba(32,52,84,.6);backdrop-filter:blur(6px)}
.n-cat{font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue)}
.nrow h4{margin:.3rem 0 .45rem;font-size:1.02rem;font-weight:600;line-height:1.35;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;transition:color .3s}
.nrow:hover h4{color:var(--blue)}
.nrow .arr{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--bg);color:var(--blue);transition:background .4s,color .4s,transform .45s var(--ease)}
.nrow .arr svg{width:16px;height:16px}
.nrow:hover .arr{background:var(--grad);color:#fff;transform:rotate(-45deg)}

/* topics card */
.topics{flex:1;position:relative;display:flex;flex-direction:column;gap:1rem;padding:1.7rem;border-radius:22px;overflow:hidden;color:#fff;background:radial-gradient(380px 240px at 100% 0,rgba(0,204,255,.32),transparent 60%),var(--navy)}
.topics::after{content:"";position:absolute;right:-60px;bottom:-60px;width:190px;height:190px;border-radius:50%;border:2px dashed rgba(255,255,255,.16);animation:spin 40s linear infinite}
.topics h4{font-size:1.2rem;font-weight:700}
.topics p{color:#b9cbe2;font-size:.9rem;margin-top:-.5rem}
.topic-chips{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:.5rem}
.topic-chips a{padding:.45rem .9rem;border-radius:999px;font-size:.8rem;font-weight:500;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);transition:background .3s,border-color .3s,transform .3s var(--ease)}
.topic-chips a:hover{background:var(--grad);border-color:transparent;transform:translateY(-2px)}
.topics .link-arrow{position:relative;z-index:1;margin-top:auto;color:var(--cyan)}

/* ---------- Footer ---------- */
.footer{position:relative;background:var(--navy);color:#b9cbe2;margin-top:110px;isolation:isolate}
.ft-deco{position:absolute;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.ft-deco::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(155,233,255,.12) 1px,transparent 1px);background-size:26px 26px;mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent)}
.ft-wave{position:absolute;top:0;left:0;width:200%;height:90px;animation:waveSlide 18s linear infinite}
.ft-wave path{fill:none;stroke-width:1.5}
@keyframes waveSlide{to{transform:translateX(-50%)}}
.ft-glow{position:absolute;border-radius:50%;filter:blur(20px);pointer-events:none;animation:drift 16s ease-in-out infinite}
.ft-glow.g1{width:520px;height:520px;left:-160px;top:120px;background:radial-gradient(circle,rgba(4,166,207,.35),transparent 65%)}
.ft-glow.g2{width:460px;height:460px;right:-140px;bottom:60px;background:radial-gradient(circle,rgba(34,238,255,.16),transparent 65%);animation-delay:-8s}

/* CTA card overlapping the top edge */
.ft-cta{position:relative;top:-110px;margin-bottom:-40px}
.ft-cta-inner{position:relative;display:grid;grid-template-columns:1.3fr auto;gap:2rem;align-items:center;padding:3rem 3.2rem;border-radius:32px;background:linear-gradient(120deg,#203454,#2d4a77 30%,#04a6cf 75%,#00ccff);color:#fff;overflow:hidden;box-shadow:0 40px 80px -30px rgba(4,166,207,.7)}
.ft-cta-inner::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:40px 40px;mask-image:radial-gradient(ellipse at 80% 50%,#000,transparent 70%)}
.ft-cta-inner>*{position:relative}
.ft-cta h2{font-size:clamp(1.8rem,3.4vw,2.8rem);font-weight:800;margin-bottom:.6rem}
.ft-cta p{color:rgba(255,255,255,.85);max-width:520px}
.ft-cta .actions{display:flex;flex-wrap:wrap;gap:.8rem}
.ft-cta .btn-white{background:#fff;color:var(--navy)}
.ft-cta .btn-white:hover{transform:translateY(-3px);box-shadow:0 18px 40px -12px rgba(0,0,0,.45)}
.ft-cta .btn-ghost{background:var(--navy);color:#fff;border:1px solid rgba(0,204,255,.45);backdrop-filter:none;box-shadow:0 12px 28px -12px rgba(13,26,48,.7),inset 0 1px 0 rgba(255,255,255,.08);transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .3s,color .3s,border-color .3s}
.ft-cta .btn-ghost svg{stroke:var(--cyan);transition:transform .35s var(--ease),stroke .3s}
.ft-cta .btn-ghost:hover svg{transform:rotate(90deg)}
.ft-cta .btn-ghost:hover{background:#14233d;border-color:var(--cyan);transform:translateY(-3px);box-shadow:0 18px 40px -12px rgba(13,26,48,.85),0 0 0 4px rgba(0,204,255,.15)}
.ft-cta .mini-tube{position:absolute;right:-30px;top:-40px;width:200px;height:200px;border-radius:50%;border:2px dashed rgba(255,255,255,.25);animation:spin 40s linear infinite}
.ft-cta .mini-tube::after{content:"";position:absolute;inset:30px;border-radius:50%;border:2px solid rgba(255,255,255,.15)}

/* Main grid */
.ft-main{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr 1.35fr;gap:2.4rem;padding:20px 0 60px}
.ft-brand .logo-w{height:44px;width:auto;filter:brightness(0) invert(1);margin-bottom:1.3rem}
.ft-brand p{font-size:.95rem;max-width:320px;margin-bottom:1.6rem}
.ft-badges{display:flex;flex-wrap:wrap;gap:.5rem}
.ft-badges span{display:inline-flex;align-items:center;gap:.4rem;padding:.4rem .8rem;border-radius:999px;font-size:.75rem;font-weight:600;color:#dbe9f8;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.ft-badges span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime)}
.ft-col h5{font-family:Poppins;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#fff;margin-bottom:1.3rem;display:flex;align-items:center;gap:.6rem}
.ft-col h5::before{content:"";width:18px;height:2px;background:var(--grad)}
.ft-links{list-style:none;display:grid;gap:.75rem}
.ft-links a{position:relative;display:inline-flex;align-items:center;gap:.5rem;font-size:.93rem;transition:color .3s,transform .35s var(--ease)}
.ft-links a::before{content:"";width:0;height:2px;border-radius:2px;background:var(--grad);transition:width .35s var(--ease)}
.ft-links a:hover{color:#fff;transform:translateX(2px)}
.ft-links a:hover::before{width:14px}
.ft-links .new{padding:.1rem .45rem;border-radius:6px;font-size:.65rem;font-weight:700;letter-spacing:.05em;color:var(--navy);background:var(--lime)}

.ft-contact{display:grid;gap:1rem;margin-bottom:1.6rem}
.ft-contact a,.ft-contact div{display:flex;gap:.8rem;align-items:flex-start;font-size:.92rem;transition:color .3s}
.ft-contact a:hover{color:#fff}
.ft-contact .ci{flex:none;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:rgba(0,204,255,.1);border:1px solid rgba(0,204,255,.25);transition:background .3s,transform .4s var(--ease)}
.ft-contact a:hover .ci{background:var(--grad);transform:rotate(-8deg)}
.ft-contact .ci svg{width:17px;height:17px;stroke:var(--cyan)}
.ft-contact a:hover .ci svg{stroke:#fff}
.ft-contact small{display:block;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:#7f97b5}

.ft-news{position:relative;display:flex;padding:6px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);transition:border-color .3s,box-shadow .3s}
.ft-news:focus-within{border-color:rgba(0,204,255,.6);box-shadow:0 0 0 4px rgba(0,204,255,.12)}
.ft-news input{flex:1;min-width:0;background:none;border:0;outline:0;padding:0 1rem;color:#fff;font:inherit;font-size:.9rem}
.ft-news input::placeholder{color:#7f97b5}
.ft-news button{flex:none;width:44px;height:44px;border-radius:50%;border:0;cursor:pointer;display:grid;place-items:center;background:var(--grad);color:#fff;transition:transform .4s var(--ease)}
.ft-news button:hover{transform:rotate(-45deg) scale(1.05)}
.ft-news button svg{width:18px;height:18px}
.ft-news-msg{min-height:1.3em;margin-top:.6rem;font-size:.8rem;color:var(--lime)}

/* Giant wordmark */
.ft-mark-wrap{overflow:hidden}
.ft-mark{position:relative;font-family:Poppins;font-weight:800;font-size:clamp(5rem,21vw,19rem);line-height:.8;letter-spacing:-.06em;text-align:center;user-select:none;color:transparent;-webkit-text-stroke:1px rgba(155,233,255,.18);margin-bottom:-.12em;white-space:nowrap}
.ft-mark span{position:absolute;inset:0;background:var(--grad-light);-webkit-background-clip:text;background-clip:text;-webkit-text-stroke:0;clip-path:inset(0 100% 0 0);transition:clip-path 1.6s var(--ease)}
.ft-mark.in span{clip-path:inset(0 0 0 0)}

/* Bottom bar */
.ft-bottom{position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.1);background:rgba(32,52,84,.85);backdrop-filter:blur(10px)}
.ft-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;padding:1.4rem 0}
.ft-bottom p{font-size:.84rem}
.ft-legal{display:flex;flex-wrap:wrap;gap:1.4rem;font-size:.84rem}
.ft-legal a:hover{color:#fff}
.ft-social{display:flex;gap:.6rem}
.ft-social a{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid rgba(255,255,255,.15);transition:all .4s var(--ease);position:relative;overflow:hidden}
.ft-social a::before{content:"";position:absolute;inset:0;background:var(--grad);transform:translateY(100%);transition:transform .4s var(--ease)}
.ft-social a:hover{border-color:transparent;transform:translateY(-4px)}
.ft-social a:hover::before{transform:none}
.ft-social svg{position:relative;width:17px;height:17px;fill:#dbe9f8}
.ft-social a:hover svg{fill:#fff}

/* Back to top with scroll progress ring */
.to-top{position:fixed;right:24px;bottom:24px;z-index:90;width:56px;height:56px;border-radius:50%;border:0;cursor:pointer;background:var(--navy);color:#fff;display:grid;place-items:center;box-shadow:0 14px 30px -10px rgba(32,52,84,.6);opacity:0;transform:translateY(20px) scale(.8);pointer-events:none;transition:opacity .4s,transform .4s var(--ease)}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover>svg.arrow{transform:translateY(-3px)}
.to-top svg.arrow{width:20px;height:20px;transition:transform .3s var(--ease)}
.to-top svg.ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.to-top svg.ring circle{fill:none;stroke-width:3}
.to-top .track{stroke:rgba(255,255,255,.12)}
.to-top .prog{stroke:url(#ttGrad);stroke-linecap:round;stroke-dasharray:157;stroke-dashoffset:157}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .xf-top{grid-template-columns:1fr;gap:2rem}
  .xf-grid{grid-template-columns:repeat(2,1fr)}
  .xf-card.feature{grid-row:span 1;min-height:440px}
  .menu,.menu-line{display:none}
  .nav{justify-content:space-between}
  .burger{display:block}
  .m-menu{display:flex;flex-direction:column;position:fixed;inset:0;z-index:95;overflow-y:auto;padding:120px 24px 32px;color:#fff;background:radial-gradient(600px 400px at 100% 0,rgba(0,204,255,.25),transparent 60%),radial-gradient(500px 400px at 0 100%,rgba(4,166,207,.2),transparent 60%),var(--navy);clip-path:circle(0 at calc(100% - 46px) 46px);visibility:hidden;transition:clip-path .7s var(--ease),visibility 0s .7s}
  body.menu-open .m-menu{clip-path:circle(150% at calc(100% - 46px) 46px);visibility:visible;transition:clip-path .7s var(--ease)}
  .m-links{list-style:none;counter-reset:m}
  .m-links>li{position:relative}
  .m-links a.m-top{display:flex;align-items:baseline;gap:1rem;padding:.75rem 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:clamp(1.5rem,6.5vw,2.3rem);font-weight:700;letter-spacing:-.02em;opacity:0;transform:translateY(30px);transition:opacity .4s,transform .5s var(--ease),color .3s}
  .m-links a.m-top::before{counter-increment:m;content:counter(m,decimal-leading-zero);font-size:.8rem;font-weight:600;color:var(--cyan)}
  .m-links a.m-top::after{content:"→";margin-left:auto;font-size:1.2rem;opacity:0;transform:translateX(-10px);transition:.3s var(--ease)}
  .m-links a.m-top:hover{color:var(--cyan)}
  .m-links a.m-top:hover::after{opacity:1;transform:none}
  body.menu-open .m-links a.m-top,body.menu-open .m-tog{opacity:1;transform:none;transition-delay:calc(.25s + var(--i) * .06s)}
  .m-has>a.m-top{padding-right:3.4rem}
  .m-has>a.m-top::after{display:none}
  .m-tog{position:absolute;right:0;top:.6rem;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;cursor:pointer;display:grid;place-items:center;opacity:0;transform:translateY(30px);transition:opacity .4s,transform .5s var(--ease),background .3s}
  .m-tog svg{width:16px;height:16px;transition:transform .4s var(--ease)}
  .m-has.open .m-tog{background:var(--grad);border-color:transparent}
  .m-has.open .m-tog svg{transform:rotate(45deg)}
  .m-sub{list-style:none;max-height:0;overflow:hidden;transition:max-height .5s var(--ease)}
  .m-has.open .m-sub{max-height:4000px}
  .m-sub a{display:flex;align-items:center;gap:.7rem;padding:.6rem 0 .6rem 2.2rem;font-size:1rem;font-weight:500;color:#b9cbe2;transition:color .3s,padding .3s var(--ease)}
  .m-sub a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);opacity:.6}
  .m-sub a:hover{color:#fff;padding-left:2.5rem}
  .m-sub li:last-child a{margin-bottom:.6rem}
  .m-l2row{display:flex;align-items:center;gap:.5rem}
  .m-l2row>a{flex:1}
  .m-tog2{flex:none;width:30px;height:30px;border-radius:50%;border:1px solid rgba(255,255,255,.16);background:none;color:#b9cbe2;display:grid;place-items:center;cursor:pointer;transition:background .3s,color .3s}
  .m-tog2 svg{width:13px;height:13px;transition:transform .35s var(--ease)}
  .m-l2.open .m-tog2{background:rgba(0,204,255,.18);border-color:transparent;color:#fff}
  .m-l2.open .m-tog2 svg{transform:rotate(180deg)}
  .m-sub2{list-style:none;max-height:0;overflow:hidden;margin-left:2.5rem;border-left:1px solid rgba(255,255,255,.12);transition:max-height .45s var(--ease)}
  .m-l2.open .m-sub2{max-height:420px}
  .m-sub .m-sub2 a{padding:.38rem 0 .38rem 1rem;font-size:.88rem;color:#8ea6c4}
  .m-sub .m-sub2 a::before{display:none}
  .m-sub .m-sub2 a:hover{color:#fff;padding-left:1.25rem}
  .m-sub .m-sub2 li:last-child a{margin-bottom:.3rem}
  .m-sub .m-group{display:block;padding:.7rem 0 .2rem 2.2rem;font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan)}
  .m-foot{margin-top:auto;padding-top:2rem;display:grid;gap:1.2rem;opacity:0;transition:opacity .5s}
  body.menu-open .m-foot{opacity:1;transition-delay:.6s}
  .m-foot .btn{justify-content:center}
  .m-contact{display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;font-size:.9rem;color:#b9cbe2}
  .m-contact a:hover{color:#fff}
  .ben-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .hero{padding-top:150px}
  .tb-links{display:none}
  .hero .container,.xfree-grid,.covid-grid,.water-grid,.panel,.news-grid{grid-template-columns:1fr}
  .slides{min-height:440px}
  .hero-visual{max-width:380px;order:-1}
  .scroll-hint{display:none}
  .section{padding:90px 0}
  .tube-stage{height:440px}
  .nf{min-height:460px}
  .covid-visual{margin:0 20px}
  .ft-main{grid-template-columns:1fr 1fr;gap:2.5rem}
  .ft-cta-inner{grid-template-columns:1fr;padding:2.4rem}
}
@media (max-width:600px){
  .nav-cta .btn{display:none}
  .nav{padding-left:1rem}
  .xf-grid{grid-template-columns:1fr}
  .xf-card.feature,.xf-cta{grid-column:auto}
  .xf-card.feature .body{padding:1.5rem}
  .xf-flow{grid-template-columns:1fr auto 1fr auto 1fr;padding:1.1rem .8rem;gap:.3rem}
  .xf-arrow{width:16px}
  .xf-step small{display:none}
  .xf-filters{width:100%;overflow-x:auto}
  .xf-filter{padding:.55rem .8rem;white-space:nowrap}
  .xf-filter i{display:none}
  .logo img{height:30px}
  .tb-news{font-size:.74rem}
  .search-in{padding:1.1rem}
  .search-field input{font-size:1rem}
  .search-field kbd{display:none}
  .assays,.ben-grid{grid-template-columns:1fr}
  .hero-visual{max-width:300px}
  .fc1{left:0}.fc2{right:0}
  .slides{min-height:480px}
  .dot{font-size:0}
  .nf{min-height:430px;padding:1.3rem;border-radius:22px}
  .nrow{grid-template-columns:92px 1fr;gap:.9rem}
  .nrow .arr{display:none}
  .nrow h4{font-size:.95rem}
  .tab{padding:.7rem 1rem}
  .lab-card{width:56%;padding:9px 10px 8px}
  .lab-card .legend{display:none}
  .lab-chip{padding:.45rem .6rem;font-size:.68rem}
  .lab-chip small{display:none}
  .lab-plate{gap:3px}
  .covid-visual .ring{width:96px;height:96px;right:-12px;bottom:-30px}
  .covid-visual .ring b{font-size:1.05rem}
  .ft-main{grid-template-columns:1fr}
  .ft-cta-inner{padding:2rem 1.5rem;border-radius:24px}
  .ft-bottom .container{flex-direction:column;text-align:center}
  .ft-legal{justify-content:center}
  .to-top{right:16px;bottom:16px;width:50px;height:50px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}