:root {
  --bg: #f6f9fc;
  --surface: #ffffff;
  --surface-soft: #f9fbfd;
  --ink: #111827;
  --muted: #5c6b7c;
  --navy: #0a2f53;
  --blue: #2f6f9f;
  --line: #dbe5ee;
  --shadow: 0 18px 45px rgba(10, 47, 83, 0.08);
  --radius: 18px;
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, #ffffff 0, var(--bg) 520px),
    var(--bg);
  color: var(--ink);
  font-family: "Inter", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.75;
}

a {
  color: var(--navy);
  text-decoration-color: rgba(10, 47, 83, 0.35);
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

a:hover,
a:focus-visible {
  color: var(--blue);
  text-decoration-color: currentColor;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  width: min(100% - 44px, var(--max-width));
  margin: 18px auto 0;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border: 1px solid rgba(219, 229, 238, 0.9);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 32px rgba(10, 47, 83, 0.06);
}

.brand {
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 20px;
  font-size: 0.88rem;
}

.nav a {
  color: var(--muted);
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
}

.section {
  width: min(100% - 44px, var(--max-width));
  margin: 34px auto 0;
  padding: 78px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.hero {
  min-height: calc(100vh - 96px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.72fr);
  align-items: center;
  gap: 72px;
  margin-top: 24px;
  padding-top: 72px;
  padding-bottom: 72px;
  border-color: rgba(219, 229, 238, 0.8);
  background:
    linear-gradient(135deg, #ffffff 0%, #f8fbfd 54%, #eef5fa 100%);
}

.hero-copy {
  max-width: 680px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  line-height: 1.35;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 600;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(3.5rem, 7.6vw, 7.1rem);
  line-height: 0.98;
}

h2 {
  max-width: 500px;
  font-size: clamp(2rem, 3.6vw, 3.35rem);
  line-height: 1.08;
}

.role {
  margin: 26px 0 0;
  color: var(--navy);
  font-size: 1.05rem;
  font-weight: 800;
}

.intro {
  max-width: 630px;
  margin: 34px 0 0;
  color: var(--muted);
  font-size: 1.2rem;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border: 1px solid var(--navy);
  border-radius: 999px;
  background: var(--navy);
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: 0 12px 24px rgba(10, 47, 83, 0.16);
}

.button:hover,
.button:focus-visible {
  background: #082138;
  color: #ffffff;
}

.text-link {
  font-weight: 800;
}

.portrait-wrap {
  margin: 0;
  justify-self: end;
  width: min(100%, 360px);
  padding: 12px;
  border: 1px solid rgba(219, 229, 238, 0.95);
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 22px 50px rgba(10, 47, 83, 0.14);
}

.portrait {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: 16px;
  object-fit: cover;
  object-position: center 24%;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(240px, 0.78fr) minmax(0, 1fr);
  gap: 78px;
  align-items: start;
}

.prose {
  max-width: 700px;
}

.prose p {
  margin: 0;
  color: var(--muted);
}

.prose p + p {
  margin-top: 24px;
}

.selected-research {
  grid-column: 1 / -1;
  margin-top: 12px;
  padding-top: 48px;
  border-top: 1px solid var(--line);
}

.selected-research h3 {
  margin: 0 0 32px;
  color: var(--navy);
  font-size: clamp(1.95rem, 3vw, 2.65rem);
  line-height: 1.12;
}

.research-themes {
  display: grid;
  gap: 28px;
}

.research-card {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: 34px;
  min-width: 0;
  padding: 34px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--navy);
  border-radius: 18px;
  background: var(--surface-soft);
  box-shadow: 0 14px 30px rgba(10, 47, 83, 0.055);
}

.research-card h4 {
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1.2;
}

.research-card-header p {
  margin-top: 20px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.publication-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.publication-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #ffffff;
}

.publication-card a {
  display: block;
  color: var(--navy);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.5;
}

.publication-meta {
  margin: 14px 0 0;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-transform: uppercase;
}

.publication-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.award-list {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.award-list li {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.award-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.award-list a,
.award-list small {
  display: block;
}

.award-list a {
  color: var(--ink);
  font-weight: 800;
  line-height: 1.45;
}

.award-list small {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.link-grid a {
  display: block;
  min-height: 58px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
  color: var(--ink);
  font-weight: 800;
  line-height: 1.35;
  text-decoration: none;
}

.link-grid a:hover,
.link-grid a:focus-visible {
  color: var(--navy);
  border-color: rgba(47, 111, 159, 0.35);
  background: #f1f7fb;
}

.contact-section {
  padding-bottom: 84px;
}

.contact-section h2 {
  max-width: 100%;
  margin-bottom: 30px;
  overflow-wrap: anywhere;
}

.site-footer {
  width: min(100% - 44px, var(--max-width));
  margin: 0 auto;
  padding: 34px 0 48px;
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .section {
    padding: 58px;
  }

  .hero,
  .two-column {
    gap: 52px;
  }

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

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

@media (max-width: 820px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    border-radius: 22px;
  }

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

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

  .hero {
    min-height: 0;
    padding-top: 58px;
  }

  .portrait-wrap {
    justify-self: start;
    width: min(100%, 330px);
  }

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

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

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

  .site-header {
    margin-top: 14px;
    padding: 16px;
  }

  .nav {
    gap: 10px 15px;
    font-size: 0.84rem;
  }

  .section {
    margin-top: 22px;
    padding: 34px 22px;
    border-radius: 16px;
  }

  .hero {
    padding-top: 42px;
    padding-bottom: 42px;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2rem;
  }

  .intro {
    font-size: 1.05rem;
  }

  .selected-research {
    margin-top: 8px;
    padding-top: 34px;
  }

  .research-card {
    gap: 24px;
    padding: 26px 20px;
    border-left-width: 3px;
  }

  .publication-card {
    padding: 20px;
  }
}