:root {
  --navy: #18324b;
  --navy-light: #2d4c67;
  --accent: #1675a0;
  --paper: #fbfaf8;
  --panel: #eef2f4;
  --white: #ffffff;
  --text: #2b3035;
  --muted: #2b3035;
  --line: #d8d9d7;
  --serif: "Helvetica Neue", Helvetica, serif;
  --sans: "Helvetica Neue", Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--navy);
}

b {
  font-weight: 600;
}

section {
  scroll-margin-top: 6rem;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.6rem 0.85rem;
  background: var(--white);
  border: 1px solid var(--navy);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-top: 4px solid var(--navy);
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 248, 0.96);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  max-width: 1240px;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--navy);
  text-decoration: none;
}

.monogram {
  display: grid;
  width: 2.6rem;
  height: 2.6rem;
  place-items: center;
  border: 1px solid var(--navy);
  font-family: var(--serif);
  font-size: 0.9rem;
  font-weight: 700;
}

.wordmark-text {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.15;
}

.wordmark-text small {
  display: block;
  margin-top: 0.25rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.25rem);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.035em;
}

.site-nav a {
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  color: var(--text);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.hero {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.hero-inner {
  display: grid;
  max-width: 1150px;
  grid-template-columns: minmax(190px, 240px) minmax(0, 1fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) 1.5rem;
}

.portrait-column {
  width: 100%;
  max-width: 240px;
  align-self: start;
}

.portrait-frame {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid #c6c9ca;
  border-radius: 3px;
  background: var(--white);
  box-shadow: 0 8px 25px rgba(24, 50, 75, 0.09);
}

.portrait {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 38%;
  transform: scale(1.12);
}

.profile-contact {
  display: grid;
  gap: 0.25rem;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.profile-contact a {
  font-weight: 600;
  text-underline-offset: 0.18rem;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0.75rem 0 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: clamp(3.2rem, 6vw, 5.4rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1;
}

.hero-statement {
  max-width: 820px;
  margin: 1.75rem 0 0;
  color: var(--navy-light);
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  line-height: 1.4;
  font-weight: 500;
}

.hero-summary {
  max-width: 720px;
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1rem;
}

.hero-about {
  max-width: 760px;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #cbd1d4;
}

.hero-about h2 {
  margin: 0 0 1rem;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 600;
}

.hero-about .about-copy p {
  margin-bottom: 0.85rem;
  font-size: 0.92rem;
  line-height: 1.55;
}

.hero-about .about-copy .lead {
  font-size: 1.02rem;
  line-height: 1.55;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-links a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--navy);
  font-size: 0.78rem;
  font-weight: 650;
  text-decoration: none;
}

.hero-links a:hover,
.hero-links a:focus-visible {
  background: var(--navy);
  color: var(--white);
}

.hero-links .primary-link {
  background: var(--navy);
  color: var(--white);
}

.hero-links .primary-link:hover,
.hero-links .primary-link:focus-visible {
  background: var(--accent);
  border-color: var(--accent);
}

.research-keywords {
  display: grid;
  grid-template-columns: 2fr;
  gap: 2rem;
  max-width: 760px;
  margin: 2.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid #cbd1d4;
}

.research-keywords div {
  display: grid;
  gap: 0.25rem;
}

.research-keywords dt {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.research-keywords dd {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 0.95rem;
}

.content-layout {
  max-width: 1150px;
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) 1.5rem clamp(4rem, 7vw, 6rem);
}

.main-content {
  min-width: 0;
}

.content-section + .content-section {
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
}

.section-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.section-header h2 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.about-copy {
  max-width: 800px;
}

.about-copy p {
  margin: 0 0 1.35rem;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 400;
}

.about-copy .lead {
  color: var(--text);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.55;
  font-weight: 500;
}

.research-interests {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.research-interests .featured-paper {
  display: grid;
  min-height: 0;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  align-items: start;
  padding: 1.2rem 1.35rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  background: var(--white);
  color: inherit;
  text-decoration: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.research-interests .featured-paper:hover,
.research-interests .featured-paper:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(24, 50, 75, 0.1);
  transform: translateY(-2px);
}

.research-interests .featured-paper:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.research-interests h3 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.25;
}

.research-interests p {
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 0.84rem;
  line-height: 1.5;
}

.research-interests .featured-paper > p:not(.methods) {
  font-weight: 400;
}

.research-interests .featured-authors {
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.84rem;
  font-weight: 400;
}

.research-interests .methods {
  margin-top: 0;
  padding-top: 0;
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.research-interests .publication-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin-top: 0.2rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.67rem;
  line-height: 1.45;
  text-transform: uppercase;
}

.research-interests .publication-meta span {
  color: var(--accent);
  font-weight: 650;
  letter-spacing: 0.08em;
}

.research-interests .publication-meta strong {
  color: var(--muted);
  font-weight: 500;
}

.publications-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.publications-heading > div {
  display: block;
}

.publications-heading > a {
  flex: none;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
}

.publications-heading > a:hover,
.publications-heading > a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.2rem;
}

.publication {
  display: grid;
  grid-template-columns: 155px minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}

.publication:first-child {
  padding-top: 0;
}

.publication-meta {
  display: grid;
  align-content: start;
  gap: 0.45rem;
  font-size: 0.67rem;
  line-height: 1.45;
  text-transform: uppercase;
}

.publication-meta span {
  color: var(--accent);
  font-weight: 650;
  letter-spacing: 0.08em;
}

.publication-meta strong {
  color: var(--muted);
  font-weight: 500;
}

.publication h3 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 600;
  line-height: 1.3;
}

.publication p {
  max-width: 750px;
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 0.86rem;
}

.publication .authors {
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
}

.publication-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 3.5rem);
  align-items: start;
}

.publication-group + .publication-group {
  padding-top: 0;
  padding-left: 0;
  border-top: 0;
  border-left: 0;
}

.publication-columns .publication-group {
  min-width: 0;
}

.publication-group-list {
  display: grid;
  gap: 0.9rem;
}

.publication-group-header {
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 2px solid var(--navy);
}

.publication-group-header h3 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  font-weight: 600;
}

.publication-columns .publication,
.other-publications .publication {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.2rem 1.35rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  background: var(--white);
  color: inherit;
  text-decoration: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.paper-card-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.related-resource {
  position: relative;
  z-index: 2;
}

.related-resource a {
  display: inline-flex;
  align-items: center;
  padding: 0.38rem 0.65rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.25;
  text-decoration: none;
}

.related-resource a:hover,
.related-resource a:focus-visible {
  background: var(--accent);
  color: var(--white);
}

.related-resource a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.publication-columns .publication:hover,
.publication-columns .publication:focus-visible,
.other-publications .publication:hover,
.other-publications .publication:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(24, 50, 75, 0.1);
  transform: translateY(-2px);
}

.publication-columns .publication:focus-visible,
.other-publications .publication:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.publication-columns .publication-meta,
.other-publications .publication-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 0.4rem 1rem;
  margin-top: 0.2rem;
  margin-bottom: 0;
  order: 2;
}

.publication-columns .publication h3,
.other-publications .publication h3 {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.publication-columns .publication h3 a,
.other-publications .publication h3 a {
  color: inherit;
  text-decoration: none;
}

.publication-columns .publication h3 a:hover,
.publication-columns .publication h3 a:focus-visible,
.other-publications .publication h3 a:hover,
.other-publications .publication h3 a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.18rem;
}

.publication-columns .publication p,
.other-publications .publication p {
  max-width: none;
  margin-top: 0.5rem;
  font-size: 0.84rem;
  line-height: 1.5;
}

.publication-columns .publication .authors,
.other-publications .publication .authors {
  font-size: 0.84rem;
  font-weight: 400;
}

.publication-columns .publication p:not(.authors),
.other-publications .publication p:not(.authors) {
  font-weight: 400;
}

.publication-columns .publication > div:not(.publication-meta),
.other-publications .publication > div:not(.publication-meta) {
  order: 1;
}

.publication-section .publication {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.2rem 1.35rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  background: var(--white);
  color: inherit;
  text-decoration: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.publication-section .publication:hover,
.publication-section .publication:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(24, 50, 75, 0.1);
  transform: translateY(-2px);
}

.publication-section .publication:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.publication-section .publication-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: flex-start;
  gap: 0.4rem 1rem;
  margin-top: 0.2rem;
  margin-bottom: 0;
  order: 2;
}

.publication-section .publication h3 {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.publication-section .publication p {
  max-width: none;
  margin-top: 0.5rem;
  font-size: 0.84rem;
  line-height: 1.5;
}

.publication-section .publication .authors {
  font-size: 0.84rem;
  font-weight: 400;
}

.publication-section .publication p:not(.authors) {
  font-weight: 400;
}

.publication-section .publication > div:not(.publication-meta) {
  order: 1;
}

.publication-section .publication h3 + .authors,
.other-publications .publication h3 + .authors {
  margin-top: 0.15rem;
}

.publication-section .publication .authors + p,
.other-publications .publication .authors + p {
  margin-top: 0.3rem;
}

.publication-meta > .related-resource {
  align-self: baseline;
  text-transform: none;
  letter-spacing: normal;
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.5rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
}

.publication-meta > .related-resource:hover,
.publication-meta > .related-resource:focus-visible {
  background: var(--accent);
  color: var(--white);
}

.other-publications {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.other-publications .publication-group-header {
  margin-bottom: 1.25rem;
}

.publication-section .section-header {
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 2px solid var(--navy);
}

.publication-section .section-header h2 {
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-weight: 600;
}

.content-section.other-publications {
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 3rem max(1.5rem, calc((100vw - 1192px) / 2));
  border-top: 5px solid var(--accent);
  background: var(--navy);
  color: #dfe7ed;
}

.site-footer p {
  margin: 0.25rem 0;
  font-size: 0.78rem;
}

.site-footer a {
  color: var(--white);
  text-underline-offset: 0.2rem;
}

.back-to-top {
  align-self: end;
  font-size: 0.72rem;
  text-decoration: none;
}

@media (max-width: 950px) {
  .hero-inner {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 3.5rem;
  }

  .research-interests {
    grid-template-columns: 1fr;
  }

  .research-interests .featured-paper {
    grid-template-columns: 1fr;
    gap: 0.55rem;
    align-items: start;
  }

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

  .publication-group + .publication-group {
    padding-top: 0;
    padding-left: 0;
    border-top: 0;
    border-left: 0;
  }
}

@media (max-width: 760px) {
  .header-inner {
    min-height: 4.5rem;
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .wordmark-text small {
    display: none;
  }

  .site-nav {
    gap: 0.85rem;
    font-size: 0.68rem;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-right: 1.25rem;
    padding-left: 1.25rem;
  }

  .portrait-column {
    display: grid;
    max-width: 520px;
    grid-template-columns: 180px 1fr;
    gap: 1.25rem;
    align-items: end;
  }

  .profile-contact {
    padding-bottom: 0.25rem;
  }

  .hero-copy {
    grid-row: 1;
  }

  .portrait-column {
    grid-row: 2;
  }

  .research-keywords {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .content-layout {
    padding-right: 1.25rem;
    padding-left: 1.25rem;
  }
}

@media (max-width: 560px) {
  .wordmark-text {
    display: none;
  }

  .site-nav a:nth-child(3) {
    display: none;
  }

  .hero h1 {
    font-size: clamp(3rem, 14vw, 4.3rem);
  }

  .hero-statement {
    font-size: 1.25rem;
  }

  .hero-links a {
    flex: 1 1 auto;
    justify-content: center;
  }

  .portrait-column {
    grid-template-columns: 145px 1fr;
  }

  .publications-heading {
    align-items: start;
  }

  .publication {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .publication-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
  }

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

  .back-to-top {
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}