:root {
  --ink: #202326;
  --muted: #5f6867;
  --line: #d9ded9;
  --surface: #ffffff;
  --paper: #f5f7f8;
  --teal: #116a70;
  --teal-deep: #0b4f55;
  --rust: #a94c31;
  --moss: #5f6f3a;
  --shadow: 0 18px 50px rgba(32, 35, 38, 0.09);
  --max: 1140px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: var(--teal-deep);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.25em;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  padding: 18px max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(217, 222, 217, 0.82);
  background: rgba(245, 247, 248, 0.94);
  backdrop-filter: blur(16px);
}

.brand {
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 22px;
  font-size: 0.95rem;
}

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

.nav a:hover,
.nav a.is-active {
  color: var(--teal-deep);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.75fr);
  gap: 56px;
  align-items: center;
  width: min(var(--max), calc(100% - 48px));
  min-height: calc(100vh - 75px);
  margin: 0 auto;
  padding: 70px 0 54px;
}

.hero-copy {
  max-width: 790px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--rust);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 20px;
  font-size: clamp(3rem, 8vw, 6.2rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(1.85rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 9px;
  font-size: 1.08rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.lead {
  max-width: 700px;
  margin-bottom: 18px;
  color: var(--teal-deep);
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.35;
  font-weight: 680;
}

.intro {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.05rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 17px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(32, 35, 38, 0.06);
}

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

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

.button.primary:hover {
  background: var(--teal-deep);
  color: #fff;
}

.profile-panel {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.profile-panel img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
}

.profile-panel dl {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--line);
}

.profile-panel dl div {
  padding: 16px 18px;
  background: var(--surface);
}

.profile-panel dt {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 780;
  text-transform: uppercase;
}

.profile-panel dd {
  margin: 0;
  color: var(--ink);
  font-weight: 720;
}

.section {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 72px 0;
  border-top: 1px solid var(--line);
}

.highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-top: 28px;
  padding-bottom: 28px;
}

.metric {
  min-height: 132px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.metric strong {
  display: block;
  margin-bottom: 8px;
  color: var(--rust);
  font-size: 2.5rem;
  line-height: 1;
}

.metric span {
  color: var(--muted);
  font-weight: 650;
}

.split {
  display: grid;
  grid-template-columns: minmax(230px, 0.65fr) minmax(0, 1.35fr);
  gap: 44px;
}

.research-grid {
  display: grid;
  gap: 18px;
}

.research-grid article,
.publication,
.project {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.research-grid article {
  border-left: 4px solid var(--moss);
}

.research-grid p,
.publication p,
.project p {
  margin-bottom: 0;
  color: var(--muted);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.timeline ol {
  display: grid;
  gap: 18px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.timeline li {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 26px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.timeline li:first-child {
  border-top: 0;
}

.timeline time {
  color: var(--teal-deep);
  font-weight: 780;
}

.timeline p {
  margin-bottom: 6px;
  color: var(--muted);
}

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

.publication-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.venue,
.project span {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--rust);
  font-size: 0.78rem;
  font-weight: 820;
  text-transform: uppercase;
}

.publication a,
.project a {
  display: inline-block;
  margin-top: 14px;
  font-weight: 760;
}

.publication.muted {
  background: #fbfbf9;
}

.award-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.award-list li {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1fr);
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.award-list li:first-child {
  border-top: 0;
}

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

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  font-weight: 760;
}

@media (max-width: 880px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 24px;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-top: 46px;
  }

  .profile-panel {
    max-width: 360px;
  }

  .highlights,
  .split,
  .publication-list,
  .project-grid,
  .award-list li {
    grid-template-columns: 1fr;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 560px) {
  .hero,
  .section,
  .site-footer {
    width: min(100% - 32px, var(--max));
  }

  .site-header {
    position: static;
  }

  h1 {
    font-size: 3.4rem;
  }

  .button {
    width: 100%;
  }

  .metric,
  .research-grid article,
  .publication,
  .project {
    padding: 18px;
  }
}