:root {
  --font-main: "Noto Sans", "Segoe UI", Arial, sans-serif;
  --ink: #101821;
  --muted: #1f2a36;
  --blue: #0b1f3a;
  --blue-2: #163a63;
  --surface: #ffffff;
  --line: #d9e0e8;
  --gold: #b08d57;
  --white: #ffffff;
  --shadow: 0 18px 44px rgba(11, 31, 58, 0.09);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font-main);
  font-size: 16px;
  font-variant-numeric: lining-nums tabular-nums;
  font-feature-settings: "lnum" 1, "tnum" 1;
  line-height: 1.65;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--blue-2);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

a:hover {
  color: var(--blue);
}

:focus-visible {
  outline: 3px solid rgba(176, 141, 87, 0.55);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  padding: 0.75rem 1rem;
  color: var(--white);
  background: var(--blue);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem max(1rem, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(217, 224, 232, 0.85);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--blue);
  font-size: 0.78rem;
  letter-spacing: 0;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1rem;
  font-size: 0.92rem;
}

.main-nav a {
  color: var(--ink);
  text-decoration: none;
}

.menu-toggle {
  display: none;
}

.hero,
.section,
.site-footer {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.72fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  min-height: 470px;
  padding: clamp(2rem, 4vw, 3.4rem) 0 2.4rem;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 2.2rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--gold);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 1.35rem;
  color: var(--blue);
  font-size: clamp(2.2rem, 4.4vw, 3.95rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  color: var(--blue);
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  color: var(--blue);
  font-size: 1.05rem;
  line-height: 1.35;
}

.lead {
  max-width: 760px;
  color: var(--ink);
  font-size: clamp(1.05rem, 1.7vw, 1.24rem);
}

.hero-actions,
.publication-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.25rem 0;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--blue);
  padding: 0.72rem 1.1rem;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  color: var(--white);
  background: var(--blue);
}

.button.secondary {
  color: var(--blue);
  background: var(--white);
}

.key-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 780px;
  margin: 1.6rem 0 0;
  background: var(--line);
}

.key-facts div {
  padding: 0.95rem;
  background: var(--white);
}

.key-facts dt {
  color: var(--blue);
  font-size: 1.9rem;
  font-variant-numeric: lining-nums tabular-nums;
  font-feature-settings: "lnum" 1, "tnum" 1;
  font-weight: 700;
  line-height: 1;
}

.key-facts dd {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.hero-portrait {
  margin: 0;
}

.hero-portrait img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

figcaption {
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.section {
  padding: clamp(2.4rem, 4.8vw, 4.2rem) 0;
}

.surface {
  width: 100%;
  max-width: none;
  padding-right: max(1rem, calc((100vw - var(--max)) / 2));
  padding-left: max(1rem, calc((100vw - var(--max)) / 2));
  background: var(--surface);
}

.section-head {
  max-width: 820px;
  margin-bottom: 1.35rem;
}

.section-head.split {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(260px, 0.58fr);
  gap: 2rem;
  max-width: none;
  align-items: end;
}

.section-head p {
  color: var(--muted);
}

.metrics,
.cards,
.design-system,
.sitemap-grid,
.bibliometrics {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metrics article,
.cards article,
.design-system article,
.sitemap-grid ul,
.bibliometrics article {
  margin: 0;
  padding: 1.05rem;
  background: var(--white);
}

.metrics strong {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--blue);
  font-size: 2.1rem;
  font-variant-numeric: lining-nums tabular-nums;
  font-feature-settings: "lnum" 1, "tnum" 1;
  font-weight: 700;
  line-height: 1;
}

.metrics span,
.cards p,
.design-system p {
  color: var(--muted);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}

.timeline li {
  display: grid;
  grid-template-columns: 1fr;
  align-content: start;
  gap: 0.55rem;
  min-height: 190px;
  padding: 1rem;
  border-bottom: 0;
  background: var(--white);
}

.timeline time,
.award-list time,
.publication-list time {
  color: var(--gold);
  font-weight: 800;
}

.timeline h3 {
  margin-bottom: 0;
}

.timeline p {
  margin-bottom: 0;
  font-size: 0.94rem;
  line-height: 1.55;
}

.cards.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cards a {
  font-weight: 700;
}

.interest-map {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.5rem;
}

.interest-map span {
  border: 1px solid var(--line);
  padding: 0.55rem 0.8rem;
  background: var(--white);
  color: var(--blue);
  font-weight: 700;
}

.interest-map span:not(:last-child)::after {
  content: "↓";
  margin-left: 0.6rem;
  color: var(--gold);
}

.feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 0.72fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.feature-grid.reverse {
  grid-template-columns: minmax(320px, 0.72fr) minmax(0, 0.88fr);
}

.feature-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
}

.check-list {
  padding-left: 1.2rem;
}

.check-list li {
  margin: 0.45rem 0;
}

.publication-tools {
  align-items: end;
  margin-top: 0;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--blue);
  font-weight: 700;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.4;
}

.checkbox-field input {
  width: auto;
  margin-top: 0.2rem;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 0.8rem 0.9rem;
  background: var(--white);
  color: var(--ink);
  font: inherit;
}

.publication-tools label {
  min-width: min(100%, 260px);
}

.publication-list {
  display: grid;
  gap: 0.75rem;
}

.publication-list article {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: 1.2rem;
  align-items: start;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--white);
}

.publication-list h3,
.publication-list p {
  margin-bottom: 0.35rem;
}

.publication-list p {
  color: var(--muted);
}

.award-list {
  display: grid;
  gap: 0.7rem;
  padding: 0;
  list-style: none;
}

.award-list li {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.gallery figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.gallery img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.gallery figcaption {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 1rem;
}

.gallery span {
  color: var(--muted);
}

.media-layout,
.contact-block {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 0.65fr);
  gap: 2rem;
  align-items: start;
}

blockquote {
  margin: 0;
  padding: 1.45rem;
  border-left: 4px solid var(--gold);
  background: var(--white);
  color: var(--blue);
  font-family: var(--font-main);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 500;
  line-height: 1.45;
}

cite {
  display: block;
  margin-top: 1rem;
  color: var(--muted);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-style: normal;
}

.document-list {
  display: grid;
  border: 1px solid var(--line);
  background: var(--white);
}

.document-list a {
  padding: 1rem;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
  text-decoration: none;
}

.document-list a:last-child {
  border-bottom: 0;
}

.bibliometrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.bibliometrics span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
}

.bibliometrics strong {
  display: block;
  margin-top: 0.35rem;
  color: var(--blue);
  font-size: 1.05rem;
}

.design-system {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sitemap-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.sitemap-grid ul {
  padding-left: 2.4rem;
}

.contact-form {
  display: grid;
  gap: 0.9rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--white);
}

.form-status {
  min-height: 1.4rem;
  margin: 0;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 700;
}

.form-status[data-state="error"] {
  color: #8a1f1f;
}

.form-status[data-state="success"] {
  color: #0f5d31;
}

.sources {
  color: var(--muted);
}

.sources h2 {
  font-size: 1.45rem;
}

.sources li {
  margin: 0.5rem 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 980px) {
  .menu-toggle {
    display: inline-flex;
    border: 1px solid var(--line);
    padding: 0.55rem 0.8rem;
    background: var(--white);
    color: var(--blue);
    font: inherit;
    font-weight: 700;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    right: 1rem;
    left: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    border: 1px solid var(--line);
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: flex;
  }

  .hero,
  .feature-grid,
  .feature-grid.reverse,
  .media-layout,
  .contact-block,
  .section-head.split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .metrics,
  .cards.four,
  .cards.three,
  .timeline,
  .gallery,
  .bibliometrics,
  .design-system,
  .sitemap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .brand span:last-child {
    max-width: 180px;
    line-height: 1.2;
  }

  .hero,
  .section,
  .site-footer {
    width: min(100% - 1rem, var(--max));
  }

  .surface {
    padding-right: 0.5rem;
    padding-left: 0.5rem;
  }

  .key-facts,
  .metrics,
  .cards.four,
  .cards.three,
  .gallery,
  .bibliometrics,
  .design-system,
  .sitemap-grid,
  .publication-list article {
    grid-template-columns: 1fr;
  }

  .timeline li,
  .award-list li {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

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

  .site-footer {
    flex-direction: column;
  }
}