:root{
  --carbon:#121212;
  --graphite:#282B2F;
  --blue:#1565C0;
  --blue-bright:#208CFF;
  --water:#8BD4FF;
  --white:#FFFFFF;
  --soft:#F7FAFD;
  --soft-blue:#EEF6FF;
  --line:#E3EAF2;
  --muted:#5E6874;
  --shadow:0 12px 38px rgba(31,64,104,.08);
  --radius:14px;
}


*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--carbon);
  background:var(--white);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit}
button,input,select,textarea{font:inherit}
.container{width:min(1180px,92vw);margin-inline:auto}
.section{padding:78px 0}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0
}

/* HEADER */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  box-shadow:0 2px 12px rgba(31,64,104,.03)
}
.nav{
  min-height:92px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px
}
.brand{width:185px;flex:0 0 auto}
.brand img{width:100%}
.main-nav{display:flex;align-items:center;gap:27px}
.main-nav a{
  position:relative;
  text-decoration:none;
  font-size:13px;
  font-weight:500;
  letter-spacing:0;
  text-transform:none;
  transition:.2s ease
}
.main-nav a:not(.nav-cta)::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-17px;
  height:2px;
  background:var(--blue);
  transform:scaleX(0);
  transform-origin:center;
  transition:.2s ease
}
.main-nav a:hover{color:var(--blue)}
.main-nav a:hover::after,
.main-nav a.active::after{transform:scaleX(1)}
.main-nav .nav-cta{
  background:var(--blue);
  color:#fff;
  padding:13px 19px;
  border-radius:6px;
  box-shadow:0 8px 20px rgba(21,101,192,.18)
}
.main-nav .nav-cta:hover{
  background:#0E57AA;
  transform:translateY(-1px)
}
.menu-toggle{
  display:none;background:none;border:0;width:42px;height:42px;padding:8px
}
.menu-toggle span:not(.sr-only){
  display:block;height:2px;background:var(--carbon);margin:6px 0
}

/* HERO */
.hero{
  position:relative;
  min-height:415px;
  display:flex;
  align-items:center;
  overflow:hidden;
  background:linear-gradient(90deg,#fff 0%,#fff 34%,#F4F9FE 55%,#E8F2FA 100%)
}
.hero-image{
  position:absolute;inset:0;
  background-image:url("/assets/ice-hero.jpg");
  background-size:cover;
  background-position:center;
  transform:scale(1.002);
  transition:transform .6s ease
}
.hero:hover .hero-image{transform:scale(1.012)}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,
      rgba(255,255,255,.99) 0%,
      rgba(255,255,255,.98) 26%,
      rgba(255,255,255,.86) 42%,
      rgba(255,255,255,.18) 63%,
      rgba(255,255,255,0) 100%)
}
.hero-pattern{display:none}
.hero-content{position:relative;z-index:2;padding:62px 0}
.hero-copy{max-width:505px}
.eyebrow{
  color:var(--blue);
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  margin-bottom:18px
}
.hero h1{
  font-size:clamp(42px,5.2vw,64px);
  line-height:1.06;
  letter-spacing:-.045em;
  max-width:580px
}
.hero h1 span{color:inherit}
.hero-lead{
  margin-top:20px;
  max-width:485px;
  color:var(--graphite);
  font-size:17px;
  line-height:1.55
}
.hero-lead strong,
.hero-lead em{
  color:var(--blue);
  font-style:normal;
  font-weight:600
}
.hero-actions{
  display:flex;
  gap:14px;
  margin-top:28px;
  flex-wrap:wrap
}
.button{
  min-height:46px;
  padding:12px 24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  border:1px solid transparent;
  border-radius:6px;
  font-size:13px;
  font-weight:600;
  letter-spacing:0;
  text-transform:none;
  cursor:pointer;
  transition:.2s ease
}
.button.primary{
  background:var(--blue);
  color:#fff;
  box-shadow:0 8px 20px rgba(21,101,192,.15)
}
.button.primary:hover{
  background:#0E57AA;
  transform:translateY(-1px)
}
.button.secondary{
  background:#fff;
  border-color:var(--blue);
  color:var(--blue)
}
.button.secondary:hover{
  background:var(--soft-blue);
  transform:translateY(-1px)
}
.hero-note{
  font-size:11px;color:#697580;margin-top:18px;max-width:500px
}

/* SECTION HEADINGS */

.section-heading.split{
  display:block;
  max-width:960px;
  margin:0 auto 52px;
  text-align:center;
}

.section-heading.split h2{
  max-width:900px;
  margin:0 auto;
}

.section-heading.split > p{
  max-width:720px;
  margin:24px auto 0;
  font-size:18px;
  line-height:1.65;
}

.section-heading h2{
  font-size:clamp(34px,4vw,50px);
  line-height:1.08;
  letter-spacing:-.04em
}
.section-heading>p{
  font-size:16px;color:var(--muted);max-width:540px
}
.section-heading.centered{
    display:flex;
    flex-direction:column;
    align-items:center;
    text-align:center;
    max-width:900px;
    margin:0 auto 64px;
}

.section-heading.centered .eyebrow{
    margin-bottom:18px;
}

.section-heading.centered h2{
    margin-bottom:20px;
    max-width:700px;
}

.section-heading.centered p:last-child{
    max-width:680px;
    margin:0 auto;
    font-size:17px;
    line-height:1.7;
    color:var(--muted);
}
.section-heading.centered p:last-child{
  font-size:16px;color:var(--muted);margin-top:10px
}

/* ==========================================
   PROPERTY STRIP
========================================== */

.property-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    background:#fff;
}

.property-card{
    padding:42px 30px;
    border-right:1px solid var(--line);
    text-align:center;
    transition:.25s ease;
}

.property-card:last-child{
    border-right:none;
}

.property-card:hover{
    background:#f9fcff;
    transform:translateY(-4px);
}

.feature-icon{
    width:54px;
    height:54px;
    display:block;
    margin:0 auto 22px;
    object-fit:contain;
}

.property-card h3{
    font-size:18px;
    font-weight:600;
    margin-bottom:12px;
    color:var(--carbon);
}

.property-card p{
    max-width:230px;
    margin:0 auto;
    color:var(--muted);
    font-size:15px;
    line-height:1.6;
}

@media (max-width:900px){

.property-grid{
    grid-template-columns:repeat(2,1fr);
}

.property-card:nth-child(2){
    border-right:none;
}

.property-card:nth-child(-n+2){
    border-bottom:1px solid var(--line);
}

}

@media (max-width:640px){

.property-grid{
    grid-template-columns:1fr;
}

.property-card{
    border-right:none;
    border-bottom:1px solid var(--line);
}

.property-card:last-child{
    border-bottom:none;
}

}

/* EVIDENCE / SCIENCE */
.evidence-section{
  background:#fff;
  color:var(--carbon);
  position:relative;
  overflow:hidden
}
.evidence-section:before{
  content:"";
  position:absolute;inset:0;
  opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='330' height='230'%3E%3Cg fill='none' stroke='%23208CFF' stroke-width='1'%3E%3Cpath d='M20 55l35-20 35 20v40l-35 20-35-20zM150 15l38 22v44l-38 22-38-22V37zM235 130l40-23 40 23v46l-40 23-40-23z'/%3E%3C/g%3E%3C/svg%3E")
}
.evidence-section .container{position:relative}
.evidence-section .eyebrow{color:var(--blue)}


.evidence-section .section-heading.centered p:last-child{color:var(--muted)}
.evidence-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px
}
.evidence-card{
  min-height:320px;
  padding:22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  transition:.2s ease
}
.evidence-card:hover{transform:translateY(-4px)}
.status-row{
  display:flex;
  justify-content:space-between;
  font-size:10px;
  color:#89939D;
  text-transform:uppercase;
  letter-spacing:.08em
}
.status{color:var(--blue);font-weight:800}
.evidence-card h3{
  font-size:31px;
  letter-spacing:-.04em;
  margin-top:26px
}
.evidence-subtitle{
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.08em;
  font-weight:800;
  color:var(--blue);
  margin-bottom:12px
}
.evidence-card>p:not(.evidence-subtitle){
  font-size:13px;
  color:var(--muted)
}
.spectrum{
  height:92px;
  margin-top:auto;
  position:relative;
  border-bottom:1px solid #C9D5E2
}
.spectrum span{
  position:absolute;bottom:0;width:2px;background:var(--blue)
}
.spectrum-xps span:nth-child(1){left:14%;height:28%}
.spectrum-xps span:nth-child(2){left:48%;height:89%}
.spectrum-xps span:nth-child(3){left:66%;height:70%}
.spectrum-xps span:nth-child(4){left:86%;height:35%}
.spectrum-raman span:nth-child(1){left:22%;height:22%}
.spectrum-raman span:nth-child(2){left:42%;height:68%}
.spectrum-raman span:nth-child(3){left:63%;height:87%}
.spectrum-raman span:nth-child(4){left:79%;height:34%}
.spectrum-ftir span:nth-child(1){left:16%;height:78%}
.spectrum-ftir span:nth-child(2){left:40%;height:42%}
.spectrum-ftir span:nth-child(3){left:61%;height:66%}
.spectrum-ftir span:nth-child(4){left:83%;height:25%}
.planned-lines{
  height:92px;
  margin-top:auto;
  background:repeating-linear-gradient(
    0deg,transparent,transparent 18px,
    rgba(21,101,192,.10) 19px,
    rgba(21,101,192,.10) 20px
  )
}
.validation-track{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  margin-top:44px;
  border-top:1px solid var(--line)
}
.track-step{padding:20px 16px 0;position:relative}
.track-step:before{
  content:"";
  position:absolute;
  width:10px;height:10px;border-radius:50%;
  background:#fff;border:2px solid #8C99A7;
  top:-6px;left:16px
}
.track-step.done:before,.track-step.active:before{
  background:var(--blue);
  border-color:var(--blue)
}
.track-step span{font-size:10px;color:var(--blue);font-weight:800}
.track-step strong{display:block;font-size:12px;margin-top:5px}
.track-step small{display:block;color:#7B8791;margin-top:4px}

/* DIRECTIONS */
.direction-list{border-top:1px solid var(--line)}
.direction-list article{
  display:grid;
  grid-template-columns:72px 1fr 40px;
  align-items:center;
  padding:24px 12px;
  border-bottom:1px solid var(--line);
  transition:.2s ease
}
.direction-list article:hover{
  padding-left:20px;
  background:var(--soft)
}
.direction-list article>span{
  font-size:11px;color:var(--blue);font-weight:800
}
.direction-list h3{font-size:20px;margin-bottom:3px}
.direction-list p{font-size:14px;color:var(--muted)}
.direction-list i{font-style:normal;color:var(--blue);font-size:22px}

/* EARLY ACCESS */
.access-section{
  background:linear-gradient(110deg,#F4F9FE 0%,#FFFFFF 80%);
  color:var(--carbon);
  position:relative;
  overflow:hidden
}
.access-section:before{
  content:"";
  position:absolute;
  right:-180px;top:-250px;
  width:620px;height:620px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(32,140,255,.14),transparent 67%)
}
.access-grid{
  position:relative;
  display:grid;
  grid-template-columns:.82fr 1.18fr;
  gap:58px;
  align-items:start
}
.access-copy h2{
  font-size:clamp(36px,4.5vw,54px);
  line-height:1.04;
  letter-spacing:-.045em
}
.access-copy>p:not(.eyebrow){
  font-size:16px;
  color:var(--muted);
  margin-top:18px
}
.access-copy ul{
  list-style:none;
  margin-top:30px;
  border-top:1px solid var(--line)
}
.access-copy li{
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:12px;
  font-weight:600;
  letter-spacing:0;
  text-transform:none
}
.access-copy li span{color:var(--blue);margin-right:13px}
.access-form{
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:var(--shadow);
  padding:30px
}
.form-heading{margin-bottom:22px}
.form-heading h3{font-size:26px;letter-spacing:-.03em}
.form-heading p{font-size:13px;color:var(--muted)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.access-form label{
  display:block;
  font-size:11px;
  text-transform:none;
  letter-spacing:0;
  font-weight:600;
  margin-bottom:14px
}
.access-form input,.access-form select,.access-form textarea{
  display:block;
  width:100%;
  margin-top:7px;
  padding:12px 13px;
  border:1px solid #CCD6E1;
  border-radius:6px;
  background:#fff;
  color:var(--carbon);
  text-transform:none;
  letter-spacing:0;
  font-weight:400;
  outline:none
}
.access-form input:focus,
.access-form select:focus,
.access-form textarea:focus{
  border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(32,140,255,.10)
}
.access-form textarea{resize:vertical}
.form-button{width:100%;border:0}
.form-note{font-size:10px;color:#7B8791;text-align:center;margin-top:12px}

/* ABOUT */
.about-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:78px
}
.about-grid h2{
  font-size:clamp(36px,4.3vw,52px);
  line-height:1.06;
  letter-spacing:-.04em
}
.about-copy{font-size:16px;color:var(--muted)}
.about-copy p+p{margin-top:18px}
.text-link{
  display:inline-flex;
  gap:12px;
  text-decoration:none;
  color:var(--blue);
  font-weight:700;
  margin-top:24px;
  border-bottom:1px solid var(--blue);
  padding-bottom:3px
}

/* FOOTER */
.footer{
  background:linear-gradient(135deg,#0D1A28 0%,#12263A 100%);
  color:#fff
}
.footer-main{
  padding:46px 0;
  display:grid;
  grid-template-columns:1.3fr .7fr .8fr 1.2fr;
  gap:48px
}
.footer-brand img{
  width:190px;
  filter:brightness(0) invert(1)
}
.footer-brand p{
  font-size:12px;
  text-transform:none;
  letter-spacing:0;
  margin-top:16px;
  color:rgba(255,255,255,.66)
}
.footer h4{
  font-size:11px;
  text-transform:none;
  letter-spacing:0;
  margin-bottom:13px
}
.footer a,.footer p{
  font-size:12px;
  color:rgba(255,255,255,.68);
  text-decoration:none;
  display:block;
  margin:7px 0
}
.footer a:hover{color:var(--water)}
.footer-bottom{
  padding:16px 0;
  border-top:1px solid rgba(255,255,255,.13);
  display:flex;
  justify-content:space-between
}
.footer-bottom p,.footer-bottom a{font-size:10px;margin:0}

/* RESPONSIVE */
@media(max-width:1020px){
  .main-nav{gap:18px}
  .main-nav a:not(.nav-cta){display:none}
  .section-heading.split,.access-grid,.about-grid{grid-template-columns:1fr}
  .property-grid,.evidence-grid{grid-template-columns:repeat(2,1fr)}
  .property-card:nth-child(2){border-right:0}
  .property-card:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .validation-track{
    grid-template-columns:1fr;
    border-top:0;
    border-left:1px solid var(--line);
    margin-left:8px
  }
  .track-step{padding:0 0 28px 29px}
  .track-step:before{left:-6px;top:3px}
  .access-grid,.about-grid{gap:46px}
  .footer-main{grid-template-columns:1.2fr .8fr .8fr}
  .footer-disclaimer{grid-column:1/-1}
}

@media(max-width:700px){
  .section{padding:64px 0}
  .container{width:min(92vw,620px)}
  .nav{min-height:72px}
  .brand{width:168px}
  .menu-toggle{display:block}
  .main-nav{
    display:none;
    position:absolute;
    top:72px;left:0;right:0;
    background:#fff;
    padding:22px 4vw;
    flex-direction:column;
    align-items:stretch;
    border-bottom:1px solid var(--line)
  }
  .main-nav.open{display:flex}
  .main-nav a:not(.nav-cta){display:block}
  .main-nav .nav-cta{text-align:center}
  .hero{
    min-height:690px;
    align-items:flex-end;
    background:#fff
  }
  .hero-image{
    background-position:72% center;
    background-size:auto 55%;
    background-repeat:no-repeat;
    background-color:#F5FAFE
  }
  .hero-overlay{
    background:linear-gradient(
      0deg,
      rgba(255,255,255,.995) 0%,
      rgba(255,255,255,.98) 46%,
      rgba(255,255,255,.25) 74%,
      rgba(255,255,255,0) 100%
    )
  }
  .hero-content{padding:310px 0 52px}
  .hero h1{font-size:44px}
  .hero-lead{font-size:16px}
  .hero-actions{display:grid}
  .button{width:100%}
  .property-grid,.evidence-grid{grid-template-columns:1fr}
  .property-card{
    border-right:0;
    border-bottom:1px solid var(--line)!important
  }
  .section-heading h2{font-size:36px}
  .direction-list article{
    grid-template-columns:48px 1fr 24px;
    padding:20px 0
  }
  .direction-list h3{font-size:18px}
  .access-form{padding:24px 18px}
  .form-row{grid-template-columns:1fr;gap:0}
  .footer-main{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand,.footer-disclaimer{grid-column:1/-1}
  .footer-bottom{display:block}
  .footer-bottom a{margin-top:8px}
}

/* ==========================================
   MOBILE SPACING FIX
========================================== */

@media (max-width:700px){

  /* Overall page rhythm */
  .section{
    padding:48px 0;
  }

  .container{
    width:calc(100% - 32px);
    max-width:620px;
  }

  /* Header */
  .nav{
    min-height:72px;
  }

  .brand{
    width:158px;
  }

  /* HERO */
  .hero{
    min-height:auto;
    display:block;
  }

  .hero-image{
    background-position:72% top;
    background-size:auto 300px;
  }

  .hero-content{
    padding:330px 0 36px;
  }

  .hero-copy{
    max-width:none;
  }

  .hero h1{
    font-size:38px;
    line-height:1.05;
  }

  .hero-lead{
    margin-top:14px;
  }

  .hero-actions{
    margin-top:22px;
  }

  .hero-note{
    margin-top:16px;
    font-size:12px;
    line-height:1.5;
  }

  /* SCIENCE INTRO */
  .intro-section{
    padding-top:50px;
    padding-bottom:36px;
  }

  .section-heading.split{
    margin-bottom:34px;
  }

  .section-heading.split .eyebrow{
    margin-bottom:14px;
  }

  .section-heading.split h2{
    font-size:36px;
    line-height:1.05;
    max-width:100%;
  }

  .section-heading.split > p{
    margin-top:18px;
    font-size:17px;
    line-height:1.6;
  }

  /* Property cards */
  .property-card{
    padding:34px 22px;
  }

  .feature-icon{
    width:48px;
    height:48px;
    margin-bottom:18px;
  }

  .property-card h3{
    margin-bottom:9px;
  }

  /* EVIDENCE */
  .evidence-section{
    padding-top:54px;
  }

  .section-heading.centered{
    margin-bottom:30px;
  }

  .section-heading.centered .eyebrow{
    margin-bottom:12px;
  }

  .section-heading.centered h2{
    font-size:38px;
  }

  .section-heading.centered p:last-child{
    margin-top:14px;
    font-size:16px;
    line-height:1.55;
  }

  .evidence-grid{
    gap:16px;
  }

  .evidence-card{
    min-height:310px;
    padding:22px;
  }
}

/* FORM SUBMISSION STATUS */

.form-status{
  min-height:24px;
  margin-top:16px;
  font-size:14px;
  line-height:1.5;
}

.form-status.success{
  color:#167447;
}

.form-status.error{
  color:#b42318;
}

.access-form button:disabled{
  cursor:not-allowed;
  opacity:.65;
}

.form-honeypot{
  position:absolute;
  left:-9999px;
  width:1px;
  height:1px;
  overflow:hidden;
}