:root {
  --bg: #f6f8f9;
  --surface: #ffffff;
  --surface-soft: #eef3f5;
  --text: #17232b;
  --muted: #5e6c75;
  --accent: #2f657c;
  --accent-dark: #21495b;
  --accent-soft: #dfeaf0;
  --border: #dce4e8;
  --shadow: 0 18px 50px rgba(18, 37, 49, 0.08);
  --radius: 18px;
  --radius-sm: 11px;
  --max: 1180px;
  --measure: 760px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-dark); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
strong { font-weight: 700; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: .65rem 1rem;
  background: var(--text);
  color: #fff;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(220,228,232,.9);
}
.header-inner {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand { text-decoration: none; color: var(--text); line-height: 1.15; flex: 0 0 auto; }
.brand-name { display: block; font-weight: 800; letter-spacing: -.02em; font-size: 1.06rem; }
.brand-subtitle { display: block; color: var(--muted); font-size: .74rem; margin-top: .24rem; font-weight: 600; letter-spacing: .02em; }
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 4px; flex-wrap: wrap; }
.site-nav a {
  color: #43515a;
  text-decoration: none;
  font-size: .83rem;
  font-weight: 700;
  padding: .5rem .62rem;
  border-radius: 8px;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { background: var(--surface-soft); color: var(--accent-dark); }

main { overflow: hidden; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.narrow { width: min(calc(100% - 40px), var(--measure)); margin-inline: auto; }
.section { padding: 92px 0; }
.section--compact { padding: 64px 0; }
.section--white { background: var(--surface); }
.section--soft { background: var(--surface-soft); }
.section--dark { background: #17313e; color: #f7fbfd; }
.section--dark a { color: #dbeef6; }

.hero { padding: 86px 0 92px; background: var(--surface); border-bottom: 1px solid var(--border); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(330px, .88fr); gap: 62px; align-items: center; }
.hero-kicker, .eyebrow {
  margin: 0 0 .7rem;
  color: var(--accent);
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: .13em;
  font-weight: 800;
}
h1, h2, h3 { line-height: 1.12; letter-spacing: -.025em; margin-top: 0; }
h1 { font-size: 2.08rem; margin-bottom: 1rem; }
/* h1 { font-size: clamp(2.65rem, 5.8vw, 5.15rem); margin-bottom: 1rem; } */
/* .page-hero h1 { font-size: clamp(2.6rem, 5vw, 4.45rem); } */
.page-hero h1 { font-size: 2.08rem; }
h2 { font-size: clamp(1.5rem, 3vw, 3.15rem);    margin-bottom: 1rem;}
h3 { font-size: 1.28rem; margin-bottom: .7rem; }
.lead { font-size: clamp(1.08rem, 1.5vw, 1.3rem); color: #3e505b; max-width: 760px; }
.hero .lead { max-width: 710px; }
.hero-tagline { font-size: 1.18rem; font-weight: 750; color: var(--accent-dark); margin: 0 0 1.15rem; }
.hero-note { margin-top: 1.65rem; color: var(--muted); font-size: .89rem; }
.page-hero { padding: 78px 0 72px; background: var(--surface); border-bottom: 1px solid var(--border); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); gap: 56px; align-items: center; }

.button-row { display: flex; gap: 11px; flex-wrap: wrap; margin-top: 1.8rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  min-height: 45px;
  padding: .65rem 1rem;
  border-radius: 9px;
  border: 1px solid var(--accent-dark);
  background: var(--accent-dark);
  color: #fff;
  text-decoration: none;
  font-weight: 760;
  font-size: .89rem;
}
.button:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.button--secondary { background: transparent; color: var(--accent-dark); border-color: var(--border); }
.button--secondary:hover { background: var(--surface-soft); color: var(--accent-dark); border-color: #c6d4db; }
.button--light { background: #fff; color: #17313e; border-color: #fff; }

.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: #e8eef1;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  min-height: 310px;
}
.media-frame--research { min-height: 320px; }
.media-frame--hero { min-height: 470px; }
.media-frame--wide { min-height: 400px; }
.media-frame--card { min-height: 240px; border-radius: 14px; box-shadow: none; }
.media-frame--portrait {
  width: 75%;
  max-width: 300px;
  min-height: 360px;
  aspect-ratio: 4 / 5;
  margin: 0 auto;
}
.media-frame img { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: contain; }
.image-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 2rem;
  text-align: center;
  color: #657781;
  background:
    linear-gradient(135deg,
      transparent 0 49.2%,
      rgba(47,101,124,.12) 49.4% 50.6%,
      transparent 50.8%),
    linear-gradient(45deg,
      transparent 0 49.2%,
      rgba(47,101,124,.09) 49.4% 50.6%,
      transparent 50.8%),
    #edf2f4;
}

.image-placeholder[hidden] {
  display: none !important;
}
.image-placeholder span { display: block; font-weight: 800; letter-spacing: .08em; font-size: .78rem; color: #405661; }
.image-placeholder small { display: block; margin-top: .55rem; font-size: .72rem; }
figcaption { color: var(--muted); font-size: .79rem; margin-top: .65rem; }

.section-head { max-width: 800px; margin-bottom: 40px; }
.section-head p:last-child { margin-bottom: 0; }
.section-rule { width: 62px; height: 3px; background: var(--accent); border-radius: 99px; margin: 1.25rem 0 0; }

.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 27px;
}
.card--link { transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.card--link:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #c8d6dd; }
.card p:last-child { margin-bottom: 0; }
.card-number { display: block; color: var(--accent); font-weight: 850; letter-spacing: .08em; font-size: 1.1rem; margin-bottom: 1.2rem; }
.card-link { display: inline-block; margin-top: .9rem; font-weight: 760; font-size: .88rem; text-decoration: none; }

.feature-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(330px, .82fr); gap: 56px; align-items: center; }
.feature-grid--reverse { grid-template-columns: minmax(330px, .82fr) minmax(0, 1fr); }
.feature-grid--reverse > :first-child { order: 2; }
.feature-grid--reverse > :last-child { order: 1; }

.list-clean { margin: 1rem 0 0; padding: 0; list-style: none; }
.list-clean li { position: relative; padding-left: 1.18rem; margin: .38rem 0; }
.list-clean li::before { content: ""; position: absolute; left: 0; top: .78em; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.meta-list { display: flex; flex-wrap: wrap; gap: .45rem .7rem; margin: 1rem 0 0; }
.meta-chip { display: inline-flex; padding: .28rem .58rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent-dark); font-size: .73rem; font-weight: 760; }

.timeline { position: relative; margin-top: 34px; }
.timeline::before { content: ""; position: absolute; left: 82px; top: 0; bottom: 0; width: 1px; background: var(--border); }
.timeline-item { display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 42px; padding: 0 0 34px; position: relative; }
.timeline-year { color: var(--accent); font-size: .82rem; font-weight: 850; padding-top: .2rem; }
.timeline-content { position: relative; }
.timeline-content::before { content: ""; position: absolute; left: -26px; top: .45rem; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 6px var(--bg); }
.section--white .timeline-content::before { box-shadow: 0 0 0 6px var(--surface); }
.timeline-content h3 { margin-bottom: .35rem; }
.timeline-content p { color: #4f5f68; margin: .25rem 0 0; }

.project-card { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 26px; padding: 30px 0; border-top: 1px solid var(--border); }
.project-card:first-child { border-top: 0; padding-top: 0; }
.project-meta { color: var(--accent); font-weight: 800; font-size: .81rem; line-height: 1.45; }
.project-content h3 { font-size: 1.42rem; margin-bottom: .35rem; }
.project-subtitle { color: var(--muted); font-weight: 650; margin: 0 0 .8rem; }

.pub-section + .pub-section { margin-top: 60px; }
.publication { padding: 24px 0; border-top: 1px solid var(--border); }
.publication:first-of-type { border-top: 0; }
.publication h3 { font-size: 1.12rem; margin-bottom: .42rem; }
.pub-authors { margin: 0; color: #4d5d66; }
.pub-source { margin: .28rem 0 0; color: var(--muted); font-size: .91rem; }
.pub-links { margin-top: .65rem; display: flex; gap: .8rem; flex-wrap: wrap; }
.pub-links a { font-size: .82rem; font-weight: 760; text-decoration: none; }

.callout {
  padding: 30px 34px;
  background: #17313e;
  color: #f7fbfd;
  border-radius: var(--radius);
}
.callout h2, .callout h3 { color: #fff; }
.callout p { color: #d8e4e9; }

.stat-band { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--border); background: var(--surface); border-radius: var(--radius); overflow: hidden; }
.stat { padding: 26px 28px; border-left: 1px solid var(--border); }
.stat:first-child { border-left: 0; }
.stat strong { display: block; font-size: 1.28rem; color: var(--accent-dark); }
.stat span { display: block; color: var(--muted); font-size: .82rem; margin-top: .2rem; }

.link-band { padding: 34px 0; background: #17313e; color: #fff; }
.link-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.link-band h2 { font-size: 1.45rem; margin: 0; }
.link-band p { margin: .35rem 0 0; color: #d1e1e8; }

.site-footer { background: #10252f; color: #d3e0e5; padding: 54px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .9fr .9fr; gap: 42px; }
.footer-title { color: #fff; font-size: 1.12rem; font-weight: 800; margin-bottom: .6rem; }
.site-footer h3 { color: #fff; font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: .7rem; }
.site-footer p, .site-footer a { font-size: .83rem; }
.site-footer a { color: #d5e7ee; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin: .38rem 0; }
.footer-bottom { margin-top: 36px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 20px; color: #9eb2bb; font-size: .72rem; }

.anchor-nav { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1.4rem; }
.anchor-nav a { display: inline-block; background: var(--surface-soft); border: 1px solid var(--border); border-radius: 999px; padding: .35rem .7rem; text-decoration: none; font-size: .75rem; font-weight: 760; }

.note { border-left: 3px solid var(--accent); padding-left: 1rem; color: var(--muted); }
.small { font-size: .86rem; color: var(--muted); }
.text-link { font-weight: 760; text-decoration: none; }
.spacer-top { margin-top: 2rem; }

@media (max-width: 980px) {
  .header-inner { min-height: 92px; align-items: flex-start; padding: 14px 0 12px; flex-direction: column; gap: 10px; }
  .site-nav { justify-content: flex-start; }
  .hero-grid, .page-hero-grid, .feature-grid, .feature-grid--reverse { grid-template-columns: 1fr; gap: 38px; }
  .feature-grid--reverse > :first-child, .feature-grid--reverse > :last-child { order: initial; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .media-frame--hero { min-height: 390px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .container, .narrow, .header-inner { width: min(calc(100% - 28px), var(--max)); }
  .site-header { position: static; }
  .site-nav { width: 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-nav a { padding: .42rem .5rem; }
  .hero, .page-hero { padding: 58px 0 60px; }
  .section { padding: 68px 0; }
  .section--compact { padding: 48px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .media-frame--hero, .media-frame--wide, .media-frame--portrait { min-height: 330px; }
  .project-card { grid-template-columns: 1fr; gap: 10px; }
  .timeline::before { left: 6px; }
  .timeline-item { grid-template-columns: 1fr; padding-left: 30px; gap: 4px; }
  .timeline-content::before { left: -28px; box-shadow: 0 0 0 5px var(--bg); }
  .section--white .timeline-content::before { box-shadow: 0 0 0 5px var(--surface); }
  .timeline-year { padding-top: 0; }
  .stat-band { grid-template-columns: 1fr; }
  .stat { border-left: 0; border-top: 1px solid var(--border); }
  .stat:first-child { border-top: 0; }
  .link-band-inner, .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > :first-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

@media print {
  .site-header, .site-footer, .button-row, .link-band { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .section, .hero, .page-hero { padding: 20px 0; }
  .card, .media-frame, .callout { box-shadow: none; break-inside: avoid; }
  a { color: #000; text-decoration: none; }
}

figure { margin: 0; }


.hero-video video {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  object-fit: contain;
  background: #eef3f5;
  }



.media-frame--video {
  min-height: 0;
  height: 240px;
}

.media-frame--video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
    }