:root {
  --ink: #111820;
  --muted: #53606b;
  --line: #dbe2e8;
  --paper: #fbfcfd;
  --panel: #ffffff;
  --blue: #0d2e4c;
  --blue-2: #173f5f;
  --red: #ef183d;
  --gold: #f6c85f;
  --green: #1b7357;
  --shadow: 0 18px 45px rgba(13, 46, 76, 0.12);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  overflow-x: hidden;
}

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

a {
  color: var(--blue-2);
  text-decoration-color: rgba(239, 24, 61, 0.45);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

p,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding-left: 1.2rem;
}

li + li {
  margin-top: 0.45rem;
}

.skip-link {
  background: var(--ink);
  color: #fff;
  left: 1rem;
  padding: 0.65rem 0.85rem;
  position: absolute;
  top: -4rem;
  z-index: 100;
}

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

.site-header {
  background: rgba(251, 252, 253, 0.93);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
}

.nav {
  align-items: center;
  display: flex;
  gap: 1.5rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  min-height: 72px;
  padding: 0 1.2rem;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  gap: 0.75rem;
  min-width: 0;
  text-decoration: none;
}

.brand > span {
  min-width: 0;
}

.brand img {
  height: 42px;
  width: 52px;
}

.brand-name {
  display: block;
  font-weight: 760;
  line-height: 1.05;
}

.brand-subtitle {
  color: var(--muted);
  display: block;
  font-size: 0.78rem;
  line-height: 1.2;
  margin-top: 0.15rem;
}

.nav-toggle {
  align-items: center;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  cursor: pointer;
  display: none;
  height: 42px;
  justify-content: center;
  flex: 0 0 42px;
  margin-left: auto;
  padding: 0;
  width: 42px;
}

.nav-toggle svg {
  height: 21px;
  width: 21px;
}

.nav-links {
  align-items: center;
  display: flex;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  border-radius: var(--radius);
  color: var(--ink);
  display: inline-flex;
  font-size: 0.92rem;
  font-weight: 650;
  padding: 0.55rem 0.75rem;
  text-decoration: none;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  background: #edf2f6;
  color: var(--blue);
}

.main {
  overflow: hidden;
}

.section {
  padding: 4.5rem 1.2rem;
}

.section.tight {
  padding-top: 3rem;
}

.section.dark {
  background: var(--blue);
  color: #f7fbff;
}

.section.dark a {
  color: #fff;
  text-decoration-color: rgba(246, 200, 95, 0.75);
}

.section-inner {
  margin: 0 auto;
  max-width: var(--max);
}

.hero {
  background:
    radial-gradient(circle at 82% 20%, rgba(246, 200, 95, 0.24), transparent 24rem),
    linear-gradient(135deg, #f7fafc 0%, #ffffff 48%, #eef4f8 100%);
  border-bottom: 1px solid var(--line);
  min-height: 520px;
  padding: 3.8rem 1.2rem 3.4rem;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  margin: 0 auto;
  max-width: var(--max);
}

.hero-grid > *,
.section-heading > *,
.split > *,
.project > *,
.compact-grid > *,
.people-grid > *,
.contact-grid > *,
.footer-grid > * {
  min-width: 0;
}

.eyebrow {
  color: var(--red);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  hyphens: none;
  line-height: 1.05;
  margin: 0;
  overflow-wrap: normal;
  text-wrap: balance;
  word-break: normal;
}

h1 {
  font-size: clamp(1.8rem, 2.8vw, 2.55rem);
  letter-spacing: 0;
  max-width: 20ch;
}

.nowrap {
  white-space: nowrap;
}

.hero-copy {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 1.2rem;
  max-width: 700px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  align-items: center;
  border: 1px solid var(--blue);
  border-radius: var(--radius);
  display: inline-flex;
  font-weight: 760;
  gap: 0.45rem;
  min-height: 44px;
  padding: 0.72rem 1rem;
  text-decoration: none;
}

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

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

.button:hover {
  border-color: var(--red);
}

.research-visual {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.15rem;
}

.visual-core {
  background: var(--blue);
  border-radius: 6px;
  color: #fff;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 1rem;
  padding: 1rem;
}

.visual-core span {
  border-left: 2px solid var(--gold);
  font-size: 0.84rem;
  font-weight: 760;
  line-height: 1.25;
  padding-left: 0.65rem;
}

.visual-grid {
  display: grid;
  gap: 0.75rem;
}

.visual-grid div {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.95rem;
}

.visual-grid strong,
.visual-grid span {
  display: block;
}

.visual-grid strong {
  font-size: 0.98rem;
}

.visual-grid span {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

.section-heading {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: minmax(0, 0.72fr) minmax(260px, 0.52fr);
  margin-bottom: 2.2rem;
}

.compact-grid .section-heading {
  display: block;
  margin-bottom: 1.4rem;
}

.compact-grid .section-heading h2 {
  font-size: clamp(1.18rem, 1.65vw, 1.45rem);
}

.compact-grid .section-heading p {
  margin-top: 0.55rem;
}

.section-heading h2 {
  font-size: clamp(1.35rem, 2.05vw, 1.72rem);
}

.section-heading p {
  color: var(--muted);
  font-size: 0.9rem;
}

.dark .section-heading p {
  color: #cbd8e2;
}

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.card h3 {
  font-size: 0.98rem;
  margin-bottom: 0.65rem;
}

.card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.card .tag {
  color: var(--green);
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 0.8rem;
  text-transform: uppercase;
}

.split {
  align-items: center;
  display: grid;
  gap: 3rem;
  grid-template-columns: minmax(280px, 0.55fr) minmax(0, 0.9fr);
}

.profile-band {
  align-items: start;
  display: grid;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  grid-template-columns: minmax(240px, 0.55fr) minmax(0, 0.9fr);
}

.profile-band h2 {
  font-size: clamp(1.35rem, 2.05vw, 1.72rem);
}

.profile-lead {
  color: #cbd8e2;
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

.body-copy {
  color: var(--muted);
  font-size: 0.9rem;
}

.dark .body-copy {
  color: #e5edf4;
}

.dark .body-copy a {
  color: #ffffff;
}

.body-copy p + p {
  margin-top: 1rem;
}

.link-list {
  display: grid;
  gap: 0.8rem;
  list-style: none;
  padding: 0;
}

.link-list li {
  border-top: 1px solid var(--line);
  margin: 0;
  padding-top: 0.8rem;
}

.publication-list {
  counter-reset: publications;
  display: grid;
  gap: 0.85rem;
  list-style: none;
  padding: 0;
}

.publication-list li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
  padding: 1rem 1rem 1rem 3.1rem;
  position: relative;
}

.publication-list li::before {
  color: var(--red);
  content: counter(publications, decimal-leading-zero);
  counter-increment: publications;
  font-size: 0.76rem;
  font-weight: 850;
  left: 1rem;
  position: absolute;
  top: 1.1rem;
}

.publication-list strong {
  color: var(--ink);
}

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

.publication-list a,
.definition-list a,
.footer-links a {
  overflow-wrap: anywhere;
}

.page-hero {
  background:
    linear-gradient(90deg, rgba(13, 46, 76, 0.97), rgba(13, 46, 76, 0.92)),
    var(--blue);
  color: #fff;
  padding: 2.75rem 1.2rem 2.35rem;
}

.page-hero h1 {
  font-size: clamp(1.8rem, 2.8vw, 2.55rem);
  max-width: 20ch;
}

.page-hero p {
  color: #dce8f1;
  font-size: 0.92rem;
  margin-top: 1rem;
  max-width: 760px;
}

.page-hero-compact {
  padding: 2.75rem 1.2rem 2.35rem;
}

.page-hero-compact h1 {
  font-size: clamp(1.8rem, 2.8vw, 2.55rem);
  max-width: 20ch;
}

.page-hero-compact p {
  font-size: 0.92rem;
  max-width: 700px;
}

.project {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(220px, 0.38fr) minmax(0, 1fr);
  padding: 2rem 0;
}

.project h2 {
  font-size: clamp(1.18rem, 1.65vw, 1.45rem);
}

.project-body {
  display: grid;
  gap: 1.1rem;
}

.project-body p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.compact-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.people-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.person-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

.person-card strong,
.course strong {
  display: block;
  hyphens: none;
  overflow-wrap: normal;
  word-break: normal;
}

.person-card span,
.course span {
  color: var(--muted);
}

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

.course {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.95rem 1rem;
}

.course strong {
  font-size: 0.94rem;
}

.course span {
  font-size: 0.9rem;
}

.course p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-top: 0.6rem;
}

.contact-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.48fr);
}

.contact-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.15rem;
}

.contact-panel h2 {
  font-size: 1.22rem;
  margin-bottom: 0.75rem;
}

.definition-list {
  display: grid;
  gap: 0.72rem;
  margin: 0;
}

.definition-list div {
  border-top: 1px solid var(--line);
  padding-top: 0.72rem;
}

.definition-list dt {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 760;
  text-transform: uppercase;
}

.definition-list dd {
  font-size: 0.9rem;
  line-height: 1.48;
  margin: 0.2rem 0 0;
}

.info-section {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.info-section .section-heading {
  margin-bottom: 1.6rem;
}

.info-section .section-heading h2 {
  font-size: clamp(1.35rem, 2.05vw, 1.72rem);
}

.info-section .section-heading p {
  font-size: 0.9rem;
}

.info-section .compact-grid .section-heading h2 {
  font-size: clamp(1.18rem, 1.65vw, 1.45rem);
}

.info-section .link-list li {
  font-size: 0.9rem;
  padding-top: 0.65rem;
}

.site-footer {
  background: #0b1825;
  color: #dce8f1;
  padding: 2.6rem 1.2rem;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr) auto;
  margin: 0 auto;
  max-width: var(--max);
}

.site-footer a {
  color: #fff;
  text-decoration-color: rgba(246, 200, 95, 0.65);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.small {
  color: #aebbc6;
  font-size: 0.88rem;
  margin-top: 0.5rem;
}

@media (min-width: 861px) {
  .hero-copy,
  .body-copy p,
  .project-body > p,
  .course p {
    text-align: justify;
  }
}

@media (max-width: 860px) {
  .nav {
    min-height: 64px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    align-items: stretch;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    display: none;
    flex-direction: column;
    gap: 0;
    left: 0;
    padding: 0.5rem 1.2rem 1rem;
    position: absolute;
    right: 0;
    top: 64px;
  }

  .nav-links[data-open="true"] {
    display: flex;
  }

  .nav-links a {
    padding: 0.8rem;
  }

  .hero {
    min-height: auto;
    padding-top: 2.75rem;
  }

  .hero-grid,
  .section-heading,
  .split,
  .profile-band,
  .project,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cards,
  .compact-grid,
  .people-grid {
    grid-template-columns: 1fr;
  }

  .research-visual {
    margin-top: 0.25rem;
  }

  .section {
    padding: 3.5rem 1rem;
  }

  .page-hero {
    background:
      linear-gradient(90deg, rgba(13, 46, 76, 0.96), rgba(13, 46, 76, 0.88)),
      var(--blue);
    padding-top: 2.35rem;
    padding-bottom: 2.15rem;
  }

  .page-hero-compact {
    padding-top: 2.35rem;
    padding-bottom: 2.15rem;
  }

  .info-section {
    padding-top: 2.6rem;
    padding-bottom: 2.6rem;
  }
}

@media (max-width: 520px) {
  .brand img {
    height: 36px;
    width: 45px;
  }

  .brand-subtitle {
    display: none;
  }

  h1 {
    font-size: 1.78rem;
  }

  .hero-copy,
  .page-hero p {
    font-size: 0.9rem;
  }

  .page-hero-compact h1 {
    font-size: 1.78rem;
  }

  .page-hero-compact p {
    font-size: 0.9rem;
  }

  .info-section .section-heading h2 {
    font-size: 1.35rem;
  }

  .contact-panel h2 {
    font-size: 1.02rem;
  }

  .hero {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .visual-core {
    grid-template-columns: 1fr;
  }

  .publication-list li {
    padding-left: 1rem;
  }

  .publication-list li::before {
    display: block;
    margin-bottom: 0.45rem;
    position: static;
  }
}