/* ===================================================================
   Science & Validation page overrides. Scoped under body.science-page
   so other pages are unaffected. Brings this page into the same
   visual system as Technology and NANO Immersion: deep navy, steel
   graphite, warm white, restrained oxygen blue, clean sans-serif,
   no serif/italic treatments.
   =================================================================== */
:root{
  --sc-bg:#0A1626;
  --sc-graphite:#1B2531;
  --sc-graphite-line:rgba(255,255,255,0.14);
  --sc-light:#FAF9F5;
  --sc-light-line:#DAD5C8;
  --sc-ink:#F4F6F9;
  --sc-ink-soft:#B7C3D1;
  --sc-ink-dim:#7C8CA6;
  --sc-dark:#1C2430;
  --sc-dark-soft:#525E6E;
  --sc-blue:#2E67E8;
  --sc-blue-deep:#1E4FC7;
  /* Accessible variant for small blue label text on this page's graphite/navy
     sections (roadmap status, etc.), where --sc-blue alone is under 4.5:1. */
  --sc-blue-on-dark:#6FA8FF;
}

body.science-page{
  font-family:'Helvetica Neue',Arial,sans-serif;
  background:var(--sc-bg);
  color:var(--sc-ink);
  line-height:1.6;
}
body.science-page p{line-height:1.6;}
body.science-page h1,
body.science-page h2,
body.science-page h3,
body.science-page h4{font-family:'Helvetica Neue',Arial,sans-serif;font-style:normal;}
body.science-page em{font-style:normal;color:var(--sc-blue);}
body.science-page .hero-eyebrow,
body.science-page .section-tag{text-transform:uppercase;font-weight:700;letter-spacing:0.07em;}

.nm-heading {
    background: none !important;
}

/* Note: the shared 1200px .wrap measure now lives in styles.css so every
   page uses the same content width and gutters as this one. */

/* Consistent type hierarchy: eyebrow 12 / H1 48 / H2 40 / H3 22 / body 17-18 */
body.science-page .hero-eyebrow,
body.science-page .section-tag{font-size:12px;letter-spacing:0.12em;margin-bottom:18px;}
body.science-page .section-title,
body.science-page .closing h2{
  font-size:clamp(28px,3vw,40px);font-weight:600;line-height:1.18;letter-spacing:-0.035em;
  max-width:900px;text-wrap:balance;
}
body.science-page .section-lede{font-size:18px;line-height:1.65;max-width:800px;margin-top:20px;}
body.science-page section.page{padding:88px 0;}
body.science-page .nav-cta{background:var(--sc-blue);}
body.science-page .nav-cta:hover{background:var(--sc-blue-deep);}
body.science-page .nav-links a:hover,
body.science-page .nav-links a.active{border-color:var(--sc-blue);}
body.science-page .btn-primary{background:var(--sc-blue);}
body.science-page .btn-primary:hover{background:var(--sc-blue-deep);}
body.science-page .btn-ghost:hover{border-color:var(--sc-blue);color:var(--sc-blue);}

/* ---------- Hero ---------- */
.science-hero h1{font-size:clamp(34px,3.6vw,48px);font-weight:600;line-height:1.15;letter-spacing:-0.03em;max-width:860px;}
.science-hero p{font-size:19px;line-height:1.65;max-width:700px;}

/* ---------- What We Measure (graphite) ---------- */
.science-measure{background:var(--sc-graphite);border-bottom:1px solid var(--sc-graphite-line);}
.science-measure .card{background:#141C27;border-color:var(--sc-graphite-line);}
.science-measure .card h3{color:var(--sc-ink);}
.science-measure .card h3{font-size:20px;margin-bottom:10px;}
.science-measure .card p{color:var(--sc-ink-soft);font-size:16.5px;line-height:1.6;}
.science-measure .card{padding:30px 28px;}
.science-measure .card-grid{gap:24px;margin-top:48px;}
body.science-page .measure-close{
  margin:72px 0 0;padding-top:44px;border-top:1px solid var(--sc-graphite-line);
  font-size:clamp(26px,2.9vw,38px);font-weight:600;line-height:1.22;letter-spacing:-0.03em;
  font-style:normal;color:var(--sc-ink);max-width:none;padding-right:max(0px, calc(100% - 880px));text-wrap:balance;
}
.science-measure .card-icon{color:var(--sc-blue);}
.science-measure .card p.card-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;line-height:1.4;color:var(--sc-blue-on-dark);margin:0 0 10px;}
.science-measure .card h3{line-height:1.3;letter-spacing:-0.01em;}

/* ---------- Evidence Framework (warm white) ---------- */
.science-evidence{background:var(--sc-light);color:var(--sc-dark);border-bottom:1px solid var(--sc-light-line);}
.science-evidence .section-title{color:var(--sc-dark);}
.science-evidence .section-lede{color:var(--sc-dark-soft);}
.science-evidence .evidence-list{border-top-color:var(--sc-light-line);}
.science-evidence .evidence-row{border-bottom-color:var(--sc-light-line);}
.science-evidence .evidence-row .tag{color:var(--sc-blue);}
.science-evidence .evidence-list{margin-top:52px;}
.science-evidence .evidence-row{grid-template-columns:240px minmax(0,1fr);gap:40px;padding:30px 0;}
.science-evidence .evidence-row .tag{font-size:13px;letter-spacing:0.1em;padding-top:5px;}
.science-evidence .evidence-copy h3{font-size:22px;font-weight:600;letter-spacing:-0.02em;line-height:1.3;color:var(--sc-dark);margin-bottom:10px;}
.science-evidence .evidence-copy p{font-size:17px;line-height:1.65;color:var(--sc-dark-soft);max-width:760px;}

/* ---------- Validation Roadmap (graphite) ---------- */
.science-roadmap{background:var(--sc-graphite);border-bottom:1px solid var(--sc-graphite-line);}
body.science-page .science-roadmap .roadmap-question{max-width:1040px;margin-top:0;}
.science-roadmap .section-lede{color:var(--sc-ink-soft);}

/* Four equal columns on one grid; the rail runs through the gutters so spacing is identical. */
.roadmap-chain{
  list-style:none;margin:64px 0 0;padding:0;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));column-gap:48px;
}
.roadmap-step{position:relative;padding-top:36px;text-align:left;}
.roadmap-step::before{
  content:"";position:absolute;top:6px;left:0;right:-48px;height:2px;background:var(--sc-graphite-line);
}
.roadmap-step:last-child::before{right:0;}
.roadmap-step::after{
  content:"";position:absolute;top:0;left:0;width:14px;height:14px;border-radius:50%;
  background:var(--sc-graphite);border:2px solid rgba(255,255,255,0.32);
}
.roadmap-step.is-active::before{background:var(--sc-blue);}
.roadmap-step.is-active::after{background:var(--sc-blue);border-color:var(--sc-blue);}
.roadmap-status{
  font-size:13px;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;
  color:var(--sc-blue-on-dark);margin-bottom:12px;
}
.roadmap-step:not(.is-active) .roadmap-status{color:var(--sc-ink-dim);}
.roadmap-step h3{font-size:22px;font-weight:600;letter-spacing:-0.02em;line-height:1.25;color:var(--sc-ink);margin-bottom:12px;}
.roadmap-step p{font-size:16.5px;line-height:1.6;color:var(--sc-ink-soft);}

/* ---------- Final CTA (deep navy) ---------- */
.closing{background:var(--sc-bg);}
body.science-page .closing{padding:104px 0;}
body.science-page .closing p{font-size:18px;line-height:1.65;max-width:680px;}

/* ---------- Responsive (desktop review first; final mobile pass to follow) ---------- */
@media (max-width:1000px){
  .roadmap-chain{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:44px;}
  .roadmap-step:nth-child(2)::before{right:0;}
  .science-evidence .evidence-row{grid-template-columns:1fr;gap:12px;}
}
@media (max-width:640px){
  .roadmap-chain{grid-template-columns:1fr;}
  .roadmap-step::before{right:0;}
  .science-hero h1{font-size:30px;}
}