:root {
  --bg: #ede6d8;
  --surface: #faf5ec;
  --surface-strong: #fffaf1;
  --text: #211e19;
  --muted: #6f6558;
  --line: #d4c6b2;
  --accent: #8b5622;
  --accent-strong: #3a2b20;
  --accent-soft: #eadbc2;
  --gold: #a16628;
  --charcoal: #191c1d;
  --charcoal-soft: #2b2c2a;
  --stone: #c2ad8f;
  --shadow: 0 18px 50px rgba(35, 29, 22, 0.13);
  --max-width: 900px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(232, 221, 202, 0.96), rgba(237, 230, 216, 0.72) 330px, transparent 620px),
    linear-gradient(135deg, rgba(43, 44, 42, 0.08), transparent 34%, rgba(139, 86, 34, 0.09) 72%, transparent),
    var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: #5f3919;
  text-decoration-color: rgba(95, 57, 25, 0.3);
  text-underline-offset: 0.18em;
}

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

::selection {
  background: rgba(161, 102, 40, 0.24);
  color: var(--text);
}

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

main,
.site-footer {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  width: 100%;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(237, 230, 216, 0.82);
  border-bottom: 1px solid rgba(160, 143, 116, 0.45);
}

.site-header-inner {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  flex: 0 0 auto;
  color: var(--text);
  font-weight: 760;
  text-decoration: none;
}

.nav-menu {
  position: relative;
  margin-left: auto;
}

.menu-toggle {
  display: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  font-size: 0.94rem;
}

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

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 54px;
  align-items: center;
  min-height: 620px;
  padding: 54px 0 72px;
}

.hero-content {
  max-width: 760px;
}

.eyebrow,
.venue,
time {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(3rem, 6vw, 5rem);
}

h1 span {
  display: inline-block;
  color: #8a7963;
  font-weight: 520;
}

h2 {
  max-width: 820px;
  font-size: clamp(1.9rem, 3.2vw, 2.55rem);
}

h3 {
  font-size: 1.2rem;
}

p {
  margin: 0;
}

p + p {
  margin-top: 0.8rem;
}

.lead {
  max-width: 710px;
  margin-top: 24px;
  color: var(--muted);
  font-size: clamp(1.12rem, 1.6vw, 1.28rem);
}

.hero-actions,
.link-row,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-actions {
  margin-top: 30px;
}

.tag-row {
  margin-top: 22px;
}

.tag-row span,
.count-pill,
.pub-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid rgba(139, 86, 34, 0.28);
  border-radius: 999px;
  background: rgba(250, 245, 236, 0.72);
  color: #674017;
  font-size: 0.82rem;
  font-weight: 760;
}

.button,
.link-row a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 13px;
  border: 1px solid rgba(139, 86, 34, 0.3);
  border-radius: 999px;
  background: rgba(255, 250, 241, 0.78);
  color: #563819;
  font-size: 0.9rem;
  font-weight: 720;
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover,
.link-row a:hover {
  border-color: rgba(139, 86, 34, 0.55);
  background: rgba(234, 219, 194, 0.9);
  color: var(--accent-strong);
  transform: translateY(-1px);
}

.button.primary {
  border-color: var(--charcoal);
  background: linear-gradient(180deg, var(--charcoal-soft), var(--charcoal));
  color: #fff7e8;
}

.button.primary:hover {
  border-color: #211f1b;
  background: linear-gradient(180deg, #3a332c, #211f1b);
  color: #fff7e8;
}

.profile-card {
  padding: 18px;
  border: 1px solid rgba(160, 143, 116, 0.58);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 250, 241, 0.9), rgba(246, 238, 224, 0.84));
  box-shadow: var(--shadow);
}

.profile-card img {
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid rgba(58, 43, 32, 0.22);
  border-radius: 6px;
  object-fit: cover;
}

.profile-card div {
  padding: 18px 4px 2px;
}

.profile-card p {
  color: var(--muted);
  font-size: 0.96rem;
}

.profile-card .card-title {
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 780;
}

.profile-facts {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.profile-facts div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 10px;
  padding: 0;
}

.profile-facts dt {
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.profile-facts dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.update-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0 0 74px;
}

.update-strip article {
  padding: 18px;
  border: 1px solid rgba(160, 143, 116, 0.5);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.74);
}

.update-strip p {
  color: var(--muted);
  font-size: 0.96rem;
}

.section {
  padding: 76px 0;
  border-top: 1px solid rgba(160, 143, 116, 0.45);
}

.section-heading {
  margin-bottom: 30px;
}

.section-heading.compact {
  margin-bottom: 22px;
}

.section-heading > p:not(.eyebrow) {
  max-width: 780px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.03rem;
}

.heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.research-card,
.publication-card,
.timeline article,
.talk-card {
  border: 1px solid rgba(160, 143, 116, 0.52);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 250, 241, 0.82), rgba(248, 241, 229, 0.74));
}

.research-card {
  padding: 22px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.research-card:hover,
.publication-card:hover,
.talk-card:hover {
  border-color: rgba(139, 86, 34, 0.48);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.research-card span {
  color: var(--gold);
  font-size: 0.9rem;
  font-weight: 850;
}

.research-card h3 {
  margin-top: 16px;
}

.research-card p,
.section-note,
.publication-content p,
.timeline p,
.talk-card p {
  color: var(--muted);
}

.section-note {
  max-width: 820px;
  margin-top: 22px;
  font-size: 1.02rem;
}

.publication-list {
  display: grid;
  gap: 18px;
}

.publication-card {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 24px;
  padding: 18px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.featured-publication {
  border-color: rgba(139, 86, 34, 0.46);
  background: linear-gradient(135deg, rgba(234, 219, 194, 0.9), rgba(255, 250, 241, 0.95));
}

.publication-media {
  align-self: start;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.publication-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.publication-media img.paper-preview {
  object-fit: contain;
  background: var(--surface-strong);
}

.publication-content {
  min-width: 0;
  padding: 2px 0;
}

.pub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.pub-meta span {
  min-height: 24px;
  padding: 3px 8px;
  border-color: rgba(161, 102, 40, 0.34);
  background: rgba(255, 250, 241, 0.76);
  color: var(--gold);
  font-size: 0.74rem;
}

.publication-content h3 {
  font-size: 1.28rem;
}

.authors {
  margin-top: 10px;
  font-size: 0.94rem;
}

.publication-content > p:not(.venue) {
  margin-top: 12px;
}

.link-row {
  margin-top: 16px;
}

.citation {
  margin-top: 14px;
}

.citation summary {
  cursor: pointer;
  color: #5f3919;
  font-weight: 760;
}

.citation pre {
  overflow-x: auto;
  margin: 12px 0 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 250, 241, 0.9);
  font-size: 0.82rem;
  line-height: 1.45;
}

.split-section {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.sticky-heading {
  position: sticky;
  top: 88px;
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline article {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 20px 22px;
  border-left: 3px solid rgba(139, 86, 34, 0.58);
}

.timeline article.timeline-entry-wide {
  grid-template-columns: 92px minmax(0, 1fr);
}

.timeline-logo {
  display: flex;
  flex: 0 0 52px;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  overflow: hidden;
  border: 1px solid rgba(160, 143, 116, 0.64);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.82);
}

.timeline-logo-wide {
  width: 82px;
}

.timeline-logo img {
  display: block;
  width: 34px;
  height: 34px;
  max-width: 34px;
  max-height: 34px;
  object-fit: contain;
  object-position: center;
}

.timeline-logo-wide img {
  width: 70px;
  height: 32px;
  max-width: 70px;
  max-height: 32px;
}

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

.timeline h3 {
  margin: 4px 0 8px;
}

.talk-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 24px;
  padding: 22px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.talk-card h3 {
  margin: 4px 0 12px;
}

.talk-card img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  object-fit: cover;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 34px 0 46px;
  border-top: 1px solid rgba(160, 143, 116, 0.45);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 880px) {
  .split-section,
  .talk-card,
  .update-strip {
    grid-template-columns: 1fr;
  }

  .publication-card {
    grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
    gap: 18px;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) clamp(220px, 34vw, 300px);
    gap: 32px;
    min-height: auto;
    padding-top: 38px;
  }

  .profile-card {
    max-width: 420px;
  }

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

  .heading-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .sticky-heading {
    position: static;
  }
}

@media (max-width: 640px) {
  .site-header-inner {
    align-items: center;
    gap: 16px;
    padding: 14px 0;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(139, 86, 34, 0.3);
    border-radius: 8px;
    background: rgba(255, 250, 241, 0.78);
    color: var(--accent-strong);
    cursor: pointer;
    list-style: none;
    transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
  }

  .menu-toggle:hover,
  .menu-toggle:focus-visible,
  .nav-menu.is-open .menu-toggle {
    border-color: rgba(139, 86, 34, 0.55);
    background: rgba(234, 219, 194, 0.9);
    color: var(--accent-strong);
    outline: none;
  }

  .menu-icon,
  .menu-icon::before,
  .menu-icon::after {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: background 160ms ease, transform 160ms ease;
  }

  .menu-icon {
    position: relative;
  }

  .menu-icon::before,
  .menu-icon::after {
    content: "";
    position: absolute;
    left: 0;
  }

  .menu-icon::before {
    top: -6px;
  }

  .menu-icon::after {
    top: 6px;
  }

  .nav-menu.is-open .menu-icon {
    background: transparent;
  }

  .nav-menu.is-open .menu-icon::before {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-menu.is-open .menu-icon::after {
    transform: translateY(-6px) rotate(-45deg);
  }

  .nav-menu .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 20;
    display: none;
    width: max-content;
    min-width: 160px;
    max-width: calc(100vw - 28px);
    padding: 8px;
    border: 1px solid rgba(160, 143, 116, 0.52);
    border-radius: 8px;
    background: rgba(255, 250, 241, 0.96);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    font-size: 0.95rem;
  }

  .nav-menu.is-open .site-nav {
    display: grid;
    gap: 2px;
    justify-content: stretch;
    justify-items: stretch;
  }

  .site-nav a {
    padding: 10px 12px;
    border-radius: 6px;
    color: var(--accent-strong);
  }

  .nav-menu .site-nav a {
    display: block;
    width: 100%;
    text-align: left;
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    background: rgba(234, 219, 194, 0.75);
    color: var(--text);
    outline: none;
  }

  main,
  .site-footer {
    width: min(var(--max-width), calc(100% - 28px));
  }

  .site-header-inner {
    width: min(var(--max-width), calc(100% - 28px));
  }

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

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

  .section {
    padding: 56px 0;
  }

  .publication-card,
  .talk-card,
  .research-card,
  .timeline article {
    padding: 16px;
  }

  .timeline article {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 14px;
  }

  .timeline article.timeline-entry-wide {
    grid-template-columns: 62px minmax(0, 1fr);
  }

  .timeline-logo {
    flex-basis: 42px;
    width: 42px;
    height: 42px;
  }

  .timeline-logo-wide {
    width: 56px;
  }

  .timeline-logo img {
    width: 28px;
    height: 28px;
    max-width: 28px;
    max-height: 28px;
  }

  .timeline-logo-wide img {
    width: 48px;
    height: 24px;
    max-width: 48px;
    max-height: 24px;
  }

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