/* Health Diagnostics SA — shared design system
   Navy as dominant chrome, one committed teal->green gradient as the
   signature device (matches the launch ad's brushstroke banner), hairline
   dividers instead of boxed cards, authored line-icons at one stroke
   weight. See PRODUCT.md for product truth this system serves. */

@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@500;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --navy-950:#071b33;
  --navy-900:#0b2a4a;
  --navy-800:#123c68;
  --navy-700:#1b4d82;
  --navy-600:#2a6099;
  --ink:#0b2a4a;
  --muted:#4f6987;
  --muted-on-navy:#9db4cf;
  --teal:#11a39c;
  --teal-light:#4bd6cd;
  --green:#2eb854;
  --green-light:#7fe89c;
  --paper:#ffffff;
  --paper-tint:#f2f7fa;
  --paper-tint-2:#e8f1f4;
  --line:rgba(11,42,74,.13);
  --line-on-navy:rgba(255,255,255,.14);
  --gradient:linear-gradient(120deg,var(--teal) 0%,var(--green) 100%);
  --gradient-deep:linear-gradient(135deg,var(--navy-800) 0%,var(--navy-950) 100%);
  --shadow-sm:0 2px 10px -4px rgba(7,27,51,.18);
  --shadow-md:0 18px 40px -18px rgba(7,27,51,.35);
  --shadow-glow:0 14px 34px -10px rgba(17,163,156,.45);
  --radius:14px;
  --ease-out:cubic-bezier(.19,1,.22,1);
  --measure:70ch;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter',system-ui,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:'Hanken Grotesk',sans-serif;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.08;
  margin:0 0 .5em;
  text-wrap:balance;
}
p{margin:0 0 1em;max-width:var(--measure);text-wrap:pretty;}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;}

::selection{background:var(--green-light);color:var(--navy-950);}
:focus-visible{outline:2.5px solid var(--teal);outline-offset:3px;border-radius:4px;}

::-webkit-scrollbar{width:12px;height:12px;}
::-webkit-scrollbar-track{background:var(--paper-tint);}
::-webkit-scrollbar-thumb{background:var(--navy-700);border-radius:8px;border:3px solid var(--paper-tint);}

/* ---------- layout shells ---------- */
.wrap{max-width:1240px;margin:0 auto;padding:0 32px;}
.wrap-narrow{max-width:920px;margin:0 auto;padding:0 32px;}
section{position:relative;}

/* ---------- nav ---------- */
.site-nav{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px) saturate(1.3);
  border-bottom:1px solid var(--line);
}
.site-nav .wrap{display:flex;align-items:center;justify-content:space-between;padding-block:14px;gap:24px;}
.nav-logo{display:flex;align-items:center;gap:11px;}
.nav-logo img{height:40px;width:auto;}
.nav-logo-text{display:flex;flex-direction:column;line-height:1.1;}
.nav-logo-text b{font-family:'Hanken Grotesk',sans-serif;font-weight:800;font-size:15.5px;letter-spacing:-.01em;color:var(--navy-900);}
.nav-logo-text span{font-size:9.5px;font-weight:700;letter-spacing:.16em;color:var(--teal);}
.nav-links{display:flex;align-items:center;gap:30px;font-size:14.5px;font-weight:600;}
.nav-links a{color:var(--navy-800);transition:color 160ms ease;position:relative;padding-block:4px;}
.nav-links a::after{content:'';position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--gradient);transition:right 220ms var(--ease-out);border-radius:2px;}
.nav-links a:hover{color:var(--navy-950);}
.nav-links a:hover::after,.nav-links a.active::after{right:0;}
.nav-links a.active{color:var(--navy-950);}
.nav-right{display:flex;align-items:center;gap:18px;}
.nav-phone{display:flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--navy-700);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;border:1.5px solid var(--line);
  background:#fff;color:var(--navy-900);flex-shrink:0;
}
.nav-toggle svg{width:20px;height:20px;}
.nav-toggle .icon-close{display:none;}
.site-nav.menu-open .nav-toggle .icon-open{display:none;}
.site-nav.menu-open .nav-toggle .icon-close{display:block;}
.mobile-panel{
  display:none;
  position:absolute;top:100%;left:0;right:0;z-index:39;
  max-height:80vh;
  background:#fff;padding:8px 20px 28px;
  overflow-y:auto;
  border-top:1px solid var(--line);
  box-shadow:var(--shadow-md);
}
.site-nav.menu-open .mobile-panel{display:block;}
.mobile-panel a.nav-links-mobile{
  display:block;padding:16px 4px;font-size:17px;font-weight:700;color:var(--navy-900);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.nav-links-mobile.active{color:var(--teal);}
.mobile-panel .mobile-phone{
  display:flex;align-items:center;gap:9px;margin-top:20px;padding:14px 4px;
  font-size:15px;font-weight:600;color:var(--navy-700);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;border-radius:999px;
  font-weight:700;font-size:14.5px;font-family:'Inter',sans-serif;
  transition:transform 180ms var(--ease-out),box-shadow 220ms ease,filter 180ms ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex-shrink:0;}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:var(--shadow-glow);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{background:transparent;color:inherit;border:1.5px solid currentColor;opacity:.88;}
.btn-ghost:hover{opacity:1;background:rgba(255,255,255,.06);}
.btn-ghost.on-light{border-color:var(--line);color:var(--navy-900);}
.btn-ghost.on-light:hover{background:var(--paper-tint);border-color:var(--navy-700);}
.btn-block{width:100%;justify-content:center;}
.btn-sm{padding:10px 18px;font-size:13.5px;}

/* ---------- pulse motif ---------- */
.pulse-rule{width:100%;height:34px;opacity:.9;}
.pulse-rule path{fill:none;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- hero ---------- */
.hero{
  background:var(--gradient-deep);
  color:#fff;
  overflow:hidden;
  position:relative;
  padding:64px 0 0;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(680px 460px at 82% 18%,rgba(17,163,156,.35),transparent 60%),
    radial-gradient(520px 420px at 100% 100%,rgba(46,184,84,.22),transparent 60%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
  padding-bottom:70px;
}
.hero h1{font-size:clamp(2.5rem,4.6vw,4rem);color:#fff;max-width:15ch;}
.hero h1 em{font-style:normal;color:var(--green-light);}
.hero .lead{font-size:18px;color:#cfe0ee;max-width:46ch;margin-bottom:32px;}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px;}
.hero-figure{position:relative;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;}
.hero-mark{width:100%;max-width:400px;filter:drop-shadow(0 30px 60px rgba(0,0,0,.35));}
.hero-scroll-cue{display:flex;align-items:center;gap:10px;padding-block:22px;border-top:1px solid var(--line-on-navy);color:var(--muted-on-navy);font-size:12.5px;font-weight:600;letter-spacing:.06em;}

/* ---------- trust strip (no cards — inline banded strip) ---------- */
.trust-strip{background:var(--navy-950);color:#fff;}
.trust-strip .wrap{
  display:flex;flex-wrap:wrap;
  padding-block:26px;
}
.trust-item{
  flex:1 1 220px;
  display:flex;align-items:flex-start;gap:14px;
  padding:14px 26px;
  border-left:1px solid var(--line-on-navy);
}
.trust-item:first-child{border-left:none;padding-left:0;}
.trust-item svg{width:26px;height:26px;flex-shrink:0;color:var(--teal-light);margin-top:2px;}
.trust-item b{display:block;font-size:14.5px;font-weight:700;margin-bottom:2px;}
.trust-item p{font-size:13px;color:var(--muted-on-navy);margin:0;}

/* ---------- section headers ---------- */
.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2{font-size:clamp(1.9rem,3vw,2.7rem);color:var(--navy-950);}
.section-head p{font-size:16.5px;color:var(--muted);}
.section-pad{padding:96px 0;}
.section-pad-sm{padding:64px 0;}
.bg-tint{background:var(--paper-tint);}
.bg-navy{background:var(--navy-900);color:#fff;}
.bg-navy .section-head h2{color:#fff;}
.bg-navy .section-head p{color:var(--muted-on-navy);}

/* ---------- pillar rows (editorial alternating, not cards) ---------- */
.pillar-row{padding:76px 0;border-top:1px solid var(--line);}
.pillar-row .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center;}
.pillar-row.reverse .wrap{grid-template-columns:1.1fr .9fr;}
.pillar-row.reverse .pillar-visual{order:2;}
.pillar-visual{
  aspect-ratio:4/3;border-radius:20px;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper-tint);
  position:relative;overflow:hidden;
}
.pillar-visual svg{width:56%;height:56%;color:var(--navy-800);}
.pillar-visual .pv-badge{
  position:absolute;top:18px;left:18px;
  width:44px;height:44px;border-radius:50%;
  background:var(--gradient);display:flex;align-items:center;justify-content:center;
}
.pillar-visual .pv-badge svg{width:22px;height:22px;color:#fff;}
.pillar-row h3{font-size:clamp(1.6rem,2.4vw,2.1rem);color:var(--navy-950);}
.pillar-tagline{font-size:16.5px;font-weight:600;color:var(--navy-700);margin-bottom:18px;}
.pillar-list{columns:2;column-gap:28px;margin-bottom:26px;}
.pillar-list li{
  display:flex;align-items:flex-start;gap:9px;
  padding:8px 0;border-top:1px solid var(--line);
  break-inside:avoid;font-size:14.5px;color:var(--ink);
}
.pillar-list li:nth-child(-n+2){border-top:none;}
.pillar-list svg{width:16px;height:16px;color:var(--green);flex-shrink:0;margin-top:3px;}
.pillar-more{font-size:13.5px;color:var(--muted);font-style:italic;margin-bottom:22px;}

/* ---------- human/animal split ---------- */
.species-split{background:var(--navy-950);color:#fff;padding:96px 0;position:relative;overflow:hidden;}
.species-split-head{text-align:center;max-width:680px;margin:0 auto 56px;}
.species-split-head h2{color:#fff;font-size:clamp(1.9rem,3vw,2.7rem);}
.species-split-head p{color:var(--muted-on-navy);margin:0 auto;}
.species-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:0;}
.species-col{padding:0 44px;}
.species-col svg{width:52px;height:52px;color:var(--teal-light);margin-bottom:18px;}
.species-col h3{color:#fff;font-size:1.5rem;margin-bottom:10px;}
.species-col p{color:var(--muted-on-navy);font-size:15px;}
.species-divider{width:1px;align-self:stretch;background:linear-gradient(var(--teal),var(--green));opacity:.55;position:relative;}
.species-divider::before{
  content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;background:var(--gradient);
  display:flex;align-items:center;justify-content:center;
}

/* ---------- footprint ---------- */
.footprint{padding:96px 0;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.footprint-map{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;}
.footprint-map svg{width:82%;color:var(--paper-tint-2);}

/* ---------- CTA band ---------- */
.cta-band{background:var(--gradient);color:#fff;padding:72px 0;text-align:center;}
.cta-band h2{color:#fff;font-size:clamp(1.8rem,3vw,2.5rem);max-width:20ch;margin-inline:auto;}
.cta-band p{color:rgba(255,255,255,.92);max-width:52ch;margin:0 auto 28px;font-size:16.5px;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.7);}
.cta-band-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* ---------- footer ---------- */
footer.site-footer{background:var(--navy-950);color:var(--muted-on-navy);padding:64px 0 28px;}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:48px;padding-bottom:44px;border-bottom:1px solid var(--line-on-navy);margin-bottom:24px;}
.footer-brand .nav-logo-text b{color:#fff;}
.footer-brand p{color:var(--muted-on-navy);font-size:14px;margin-top:16px;max-width:34ch;}
.footer-col h4{font-family:'Inter',sans-serif;font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;font-size:14px;}
.footer-col a{color:var(--muted-on-navy);transition:color 160ms ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:12.5px;color:var(--muted-on-navy);}

/* ---------- page hero (inner pages) ---------- */
.page-hero{background:var(--gradient-deep);color:#fff;padding:80px 0 64px;position:relative;overflow:hidden;}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(600px 400px at 90% 0%,rgba(17,163,156,.3),transparent 60%);
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:1;}
.page-hero h1{color:#fff;font-size:clamp(2.1rem,3.6vw,3.1rem);max-width:20ch;}
.page-hero p{color:#cfe0ee;font-size:17px;max-width:54ch;margin-top:14px;}

/* ---------- blog ---------- */
.blog-list{display:flex;flex-direction:column;}
.blog-row{
  display:grid;grid-template-columns:120px 1fr auto;gap:32px;align-items:baseline;
  padding:32px 0;border-top:1px solid var(--line);
}
.blog-row:first-child{border-top:none;}
.blog-row .blog-date{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.02em;}
.blog-row .blog-tag{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--teal);margin-bottom:8px;
}
.blog-row h2{font-size:1.35rem;color:var(--navy-950);margin-bottom:8px;}
.blog-row p{font-size:14.5px;color:var(--muted);max-width:58ch;}
.blog-row .blog-arrow{width:20px;height:20px;color:var(--navy-800);align-self:center;transition:transform 160ms var(--ease-out);}
.blog-row:hover .blog-arrow{transform:translateX(4px);}

.article-hero{background:var(--gradient-deep);color:#fff;padding:72px 0 56px;position:relative;overflow:hidden;}
.article-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(600px 400px at 90% 0%,rgba(17,163,156,.3),transparent 60%);pointer-events:none;}
.article-hero .wrap{position:relative;z-index:1;max-width:820px;margin:0 auto;padding:0 32px;}
.article-back{display:flex;width:fit-content;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--teal-light);margin-bottom:22px;}
.article-back svg{width:16px;height:16px;}
.article-tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-light);margin-bottom:14px;}
.article-hero h1{color:#fff;font-size:clamp(1.9rem,3.4vw,2.7rem);max-width:22ch;}
.article-meta{display:flex;gap:18px;margin-top:20px;font-size:13.5px;color:var(--muted-on-navy);}

.article-body{max-width:700px;margin:0 auto;padding:64px 32px 40px;}
.article-body p{font-size:17px;line-height:1.75;color:var(--ink);max-width:68ch;margin-bottom:22px;}
.article-body h2{font-size:1.5rem;color:var(--navy-950);margin:44px 0 16px;}
.article-body h3{font-size:1.2rem;color:var(--navy-950);margin:32px 0 12px;}
.article-body ul{margin:0 0 22px;padding-left:0;}
.article-body ul li{
  list-style:none;display:flex;gap:10px;padding:10px 0;border-top:1px solid var(--line);
  font-size:15.5px;color:var(--ink);
}
.article-body ul li:first-child{border-top:none;}
.article-body ul li svg{width:16px;height:16px;color:var(--green);flex-shrink:0;margin-top:4px;}
.article-lede{font-size:19px;color:var(--muted);line-height:1.6;margin-bottom:8px;}
.article-source{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;margin-top:36px;}

.share-row{max-width:700px;margin:0 auto;padding:0 32px 72px;display:flex;align-items:center;gap:16px;}
.share-row span{font-size:13.5px;font-weight:600;color:var(--muted);}
.share-btn{
  display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;
  border:1.5px solid var(--line);font-size:13.5px;font-weight:600;color:var(--navy-800);
  transition:background 160ms ease,border-color 160ms ease;
}
.share-btn:hover{background:var(--paper-tint);border-color:var(--navy-700);}
.share-btn svg{width:16px;height:16px;}

/* ---------- generic content sections ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
.stat-row{display:flex;gap:0;flex-wrap:wrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:40px 0;}
.stat-row .stat{flex:1 1 200px;padding:22px 26px;border-left:1px solid var(--line);}
.stat-row .stat:first-child{border-left:none;}
.stat b{display:block;font-family:'Hanken Grotesk',sans-serif;font-size:1.35rem;color:var(--navy-950);margin-bottom:2px;}
.stat span{font-size:13.5px;color:var(--muted);}

.category-form{background:var(--paper-tint);border-radius:20px;padding:40px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--navy-800);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:10px;border:1.5px solid var(--line);
  font:inherit;font-size:14.5px;color:var(--ink);background:#fff;
  transition:border-color 160ms ease,box-shadow 160ms ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--teal);box-shadow:0 0 0 4px rgba(17,163,156,.14);outline:none;
}
.field textarea{resize:vertical;min-height:110px;}

.contact-tiles{display:flex;flex-direction:column;gap:1px;background:var(--line);border-radius:16px;overflow:hidden;border:1px solid var(--line);}
.contact-tile{background:#fff;padding:22px 24px;display:flex;align-items:center;gap:16px;}
.contact-tile svg{width:26px;height:26px;color:var(--teal);flex-shrink:0;}
.contact-tile b{display:block;font-size:14px;color:var(--navy-950);}
.contact-tile span{font-size:13.5px;color:var(--muted);}
.contact-tile a{color:var(--navy-950);font-weight:700;}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr;padding-bottom:48px;}
  .hero-figure{order:-1;max-width:280px;margin:0 auto;}
  .pillar-row .wrap,.pillar-row.reverse .wrap{grid-template-columns:1fr;}
  .pillar-row.reverse .pillar-visual{order:0;}
  .pillar-visual{aspect-ratio:16/9;max-width:420px;margin:0 auto;}
  .pillar-list{columns:1;}
  .species-grid{grid-template-columns:1fr;gap:40px;}
  .species-divider{display:none;}
  .footprint{grid-template-columns:1fr;gap:32px;}
  .footer-top{grid-template-columns:1fr 1fr;row-gap:32px;}
  .two-col{grid-template-columns:1fr;}
  .blog-row{grid-template-columns:1fr;gap:8px;}
  .blog-row .blog-arrow{display:none;}
}
@media (max-width:720px){
  .wrap{padding:0 20px;}
  .nav-links{display:none;}
  .nav-phone{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-logo-text span{display:none;}
  .nav-logo-text b{font-size:13.5px;white-space:nowrap;}
  .nav-logo img{height:32px;}
  .site-nav .wrap{gap:12px;}
  .nav-right .btn-sm{padding:11px;border-radius:50%;}
  .nav-right .btn-sm .btn-label{display:none;}
  .nav-right .btn-sm svg{width:18px;height:18px;}
  .trust-item{flex:1 1 100%;border-left:none;border-top:1px solid var(--line-on-navy);padding-left:0;}
  .trust-item:first-child{border-top:none;}
  .section-pad{padding:64px 0;}
  .footer-top{grid-template-columns:1fr;}
}