:root {
  color-scheme: light;
  --bg: #f7f9fb;
  --surface: #ffffff;
  --surface-soft: #eef4f8;
  --text: #14202b;
  --muted: #5f6d7a;
  --border: #dbe4ea;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --accent-soft: #dff5f1;
  --gold: #9a6b13;
  --gold-soft: #fff2cf;
  --shadow: 0 24px 60px rgba(20, 32, 43, 0.08);
  --radius: 8px;
  --max-width: 1120px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101418;
  --surface: #171d22;
  --surface-soft: #1f2a31;
  --text: #ecf2f7;
  --muted: #a9b6c2;
  --border: #2f3b45;
  --accent: #44c7b8;
  --accent-strong: #82ddd4;
  --accent-soft: #123b38;
  --gold: #f0c46c;
  --gold-soft: #3d3013;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 12px 20px;
  backdrop-filter: blur(18px);
}

.brand {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  flex: 1;
  justify-content: center;
  gap: 8px;
}

.nav-links a {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.is-active {
  border-color: var(--border);
  background: var(--surface-soft);
  color: var(--text);
  outline: none;
}

.theme-toggle {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  color: var(--text);
  cursor: pointer;
}

.theme-icon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 8px -4px 0 -3px var(--surface);
}

.section-shell {
  width: min(100% - 40px, var(--max-width));
  margin: 0 auto;
  padding: 52px 0;
}

.section-shell[id] {
  scroll-margin-top: 82px;
}

.section-shell.compact {
  padding-top: 38px;
}

.hero {
  display: grid;
  align-items: start;
  grid-template-columns: 136px minmax(0, 1fr);
  gap: 30px;
  padding-top: 28px;
  padding-bottom: 28px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 6px;
  font-size: clamp(38px, 5vw, 58px);
  line-height: 1;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.1;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.2;
}

h4 {
  margin-bottom: 10px;
  font-size: 18px;
  line-height: 1.28;
}

.hero-title {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
}

.hero-summary {
  max-width: 720px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 17px;
}

.identity-meta {
  margin-bottom: 12px;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
}

.profile-actions,
.paper-links,
.representative-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.profile-actions a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.profile-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.contact-note {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.full-list-link {
  color: var(--accent);
  font-weight: 800;
  white-space: nowrap;
}

.mobile-label {
  display: none;
}

.avatar {
  width: 120px;
  height: 120px;
  border: 1px solid var(--border);
  border-radius: 50%;
  object-fit: cover;
}

.section-heading p,
.publication-item p {
  color: var(--muted);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 22px;
}

.publications-heading {
  max-width: none;
}

.section-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
}

.section-title-row h2 {
  margin-bottom: 14px;
}

.section-heading p {
  font-size: 17px;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.focus-card {
  border-top: 1px solid var(--border);
  padding: 14px 0 0;
  transition: transform 160ms ease;
}

.focus-index {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
}

.focus-card h3,
.timeline-item h3,
.map-node strong {
  font-size: 17px;
}

.focus-card h3 {
  margin-bottom: 6px;
}

.focus-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.model-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.model-timeline::before {
  content: "";
  position: absolute;
  top: 35px;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  min-height: 210px;
  border-right: 1px solid var(--border);
  padding: 18px 16px 16px 0;
  transition: transform 160ms ease;
}

.timeline-item:last-child {
  border-right: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 0;
  z-index: 1;
  width: 13px;
  height: 13px;
  border: 2px solid var(--surface);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.timeline-item.featured::before {
  background: var(--gold);
  box-shadow: 0 0 0 1px var(--gold);
}

.timeline-item time {
  display: block;
  margin-bottom: 28px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
}

.timeline-item h3 {
  margin-bottom: 7px;
}

.timeline-item p {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.research-map {
  display: grid;
  grid-template-columns: 1.2fr repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.map-node {
  display: grid;
  align-content: start;
  min-height: 142px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 13px;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.map-node:hover,
.map-node:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: var(--shadow);
  color: inherit;
  outline: none;
  transform: translateY(-2px);
}

.map-node span {
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.map-node strong {
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.25;
}

.map-node em {
  color: var(--muted);
  font-size: 13px;
  font-style: normal;
  line-height: 1.4;
}

.map-node-primary {
  background: var(--accent-soft);
}

.direction-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}

.research-direction {
  display: grid;
  grid-template-columns: minmax(180px, 0.28fr) minmax(0, 1fr) minmax(220px, 0.34fr);
  gap: 18px;
  align-items: baseline;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.research-direction h3 {
  margin-bottom: 0;
  font-size: 18px;
}

.research-direction p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.representative-links {
  gap: 6px 12px;
}

.representative-links a {
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(220px, 0.38fr) minmax(0, 1fr);
  gap: 54px;
}

.sticky-heading {
  position: sticky;
  top: 92px;
  align-self: start;
  margin-bottom: 0;
}

.news-list {
  position: relative;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 22px;
  border-bottom: 1px solid var(--border);
  padding: 0 0 14px;
}

.news-list time {
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
}

.news-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.news-list a {
  color: var(--text);
}

.news-list a:hover {
  color: var(--accent);
}

.publication-groups {
  display: grid;
  gap: 28px;
}

.publication-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.filter-button {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  padding: 7px 11px;
  font: inherit;
  font-size: 13px;
  font-weight: 850;
  line-height: 1;
  cursor: pointer;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.filter-button:hover,
.filter-button:focus-visible,
.filter-button.is-active {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  background: var(--accent-soft);
  color: var(--accent-strong);
  outline: none;
}

.publication-group > h3 {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.publication-group > h3::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--border);
}

.publication-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}

.publication-item {
  position: relative;
  display: grid;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  padding: 11px 0;
  scroll-margin-top: 92px;
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.publication-item.is-hidden,
.publication-group.is-hidden {
  display: none;
}

.publication-item.highlight {
  padding-left: 12px;
}

.publication-item.highlight::before {
  content: "";
  position: absolute;
  top: 13px;
  bottom: 13px;
  left: 0;
  width: 2px;
  background: var(--accent);
}

.publication-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
}

.venue-badge {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  background: var(--gold-soft);
  color: var(--gold);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 900;
}

.publication-item h4 {
  margin-bottom: 0;
  font-size: 17px;
  line-height: 1.32;
}

.publication-item p {
  margin-bottom: 0;
}

.authors {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.paper-note {
  font-size: 14px;
  line-height: 1.4;
}

.paper-note strong {
  color: var(--text);
}

.impact-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 3px;
}

.impact-tags span {
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border));
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-soft) 74%, var(--surface));
  color: var(--accent-strong);
  padding: 3px 7px;
  font-size: 11px;
  font-weight: 850;
  line-height: 1.2;
}

.paper-links {
  margin-top: auto;
  padding-top: 1px;
  gap: 8px;
}

.paper-links a {
  border-bottom: 1px solid currentColor;
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
}

.experience-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}

.subsection-title {
  margin-bottom: 12px;
  color: var(--text);
  font-size: 18px;
}

.experience-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 24px;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.experience-item h3 {
  margin-bottom: 2px;
  font-size: 18px;
}

.company-heading {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.company-logo {
  width: 52px;
  height: 22px;
  flex: 0 0 auto;
  object-fit: contain;
}

.company-logo-icon {
  width: 24px;
  height: 24px;
}

.experience-item p {
  margin-bottom: 0;
  color: var(--muted);
}

.experience-item time {
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  grid-column: 1;
  grid-row: 1;
}

.experience-item > div {
  grid-column: 2;
  grid-row: 1;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(100% - 40px, var(--max-width));
  margin: 0 auto;
  border-top: 1px solid var(--border);
  padding: 30px 0 42px;
  color: var(--muted);
  font-size: 14px;
}

.footer-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.site-footer p {
  margin-bottom: 0;
}

.pageviews {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
}

.footer-icon {
  width: 15px;
  height: 15px;
  align-self: center;
}

.pageviews strong {
  color: var(--text);
  font-size: 15px;
}

.site-stats {
  position: relative;
}

.site-stats[open] {
  flex-basis: 100%;
}

.site-stats summary {
  color: var(--accent);
  font-weight: 800;
  cursor: pointer;
}

.stats-content {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.visitor-map {
  display: inline-flex;
  align-items: center;
  overflow: hidden;
  min-width: 250px;
  min-height: 125px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.visitor-map iframe,
.visitor-map img,
.visitor-map object {
  display: block;
  max-width: 100%;
}

.site-footer a {
  color: var(--accent);
  font-weight: 800;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal-on-scroll {
    opacity: 0;
    transform: translateY(10px);
    transition:
      opacity 420ms ease,
      transform 420ms ease;
  }

  .reveal-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .publication-item:hover,
  .focus-card:hover,
  .timeline-item:hover {
    transform: translateY(-1px);
  }
}

@media (max-width: 960px) {
  .two-column {
    grid-template-columns: 1fr;
  }

  .focus-grid,
  .research-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .model-timeline {
    grid-template-columns: 1fr;
    border-bottom: 0;
  }

  .model-timeline::before {
    top: 0;
    right: auto;
    bottom: 0;
    left: 6px;
    width: 1px;
    height: auto;
  }

  .timeline-item {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
    padding: 14px 0 14px 28px;
  }

  .timeline-item::before {
    top: 19px;
    left: 0;
  }

  .timeline-item time {
    margin-bottom: 6px;
  }

  .hero {
    padding-top: 38px;
  }

  .research-direction {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .sticky-heading {
    position: static;
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: center;
    gap: 10px;
    padding-inline: 14px;
  }

  .nav-links {
    justify-content: flex-start;
    gap: 2px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    flex: 0 0 auto;
    padding: 7px 9px;
    font-size: 13px;
  }

  .section-shell {
    width: min(100% - 28px, var(--max-width));
    padding: 46px 0;
  }

  .hero {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 18px;
    padding-top: 28px;
    padding-bottom: 26px;
  }

  .avatar {
    width: 78px;
    height: 78px;
  }

  h1 {
    font-size: 34px;
  }

  .hero-summary {
    font-size: 16px;
  }

  .profile-actions {
    gap: 6px 8px;
  }

  .profile-actions a {
    font-size: 13px;
    line-height: 1.35;
  }

  .focus-grid,
  .research-map {
    grid-template-columns: 1fr;
  }

  .map-node {
    min-height: auto;
  }

  .publication-filters {
    gap: 6px;
  }

  .filter-button {
    padding: 7px 9px;
    font-size: 12px;
  }

  .publication-header {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .section-title-row {
    display: grid;
    gap: 2px;
  }

  .section-title-row h2 {
    margin-bottom: 0;
  }

  .full-list-link {
    width: fit-content;
  }

  .desktop-label {
    display: none;
  }

  .mobile-label {
    display: inline;
  }

  .news-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .experience-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .experience-item time,
  .experience-item > div {
    grid-column: 1;
    grid-row: auto;
  }

  .site-footer {
    display: grid;
  }

  .footer-meta {
    display: grid;
    gap: 4px;
  }

}