:root {
  --ink: #102538;
  --navy: #0b2942;
  --blue: #1b537a;
  --gold: #e7a930;
  --gold-light: #f4ca73;
  --paper: #f7f5ef;
  --white: #fffefa;
  --mist: #e3e8eb;
  --muted: #5d6b76;
  --line: rgba(16, 37, 56, 0.16);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --content: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 400 1rem/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration-color: rgba(27, 83, 122, 0.35); text-underline-offset: 0.2em; }
a:hover { text-decoration-color: var(--gold); }
img { display: block; max-width: 100%; }
h1, h2, h3, h4, p { margin-top: 0; }
button, input, textarea { font: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  background: var(--white);
  color: var(--navy);
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid transparent;
  background: rgba(247, 245, 239, 0.92);
  backdrop-filter: blur(16px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}
.site-header.is-scrolled { border-color: var(--line); box-shadow: 0 8px 30px rgba(11, 41, 66, 0.06); }
.nav-shell {
  width: min(calc(100% - 3rem), var(--content));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: 0.75rem; color: var(--navy); font-weight: 700; text-decoration: none; }
.brand-mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border-radius: 50%;
  color: var(--navy);
  background: var(--gold);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}
.primary-nav { display: flex; align-items: center; gap: 2rem; }
.primary-nav a { color: var(--muted); font-size: 0.9rem; font-weight: 600; text-decoration: none; }
.primary-nav a:hover, .primary-nav a[aria-current="true"] { color: var(--navy); }
.menu-button { display: none; }

.hero {
  position: relative;
  min-height: calc(100svh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.2;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.1) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, #000, transparent 72%);
}
.hero-copy {
  position: relative;
  z-index: 1;
  align-self: center;
  width: min(100%, 770px);
  padding: clamp(4rem, 8vw, 8rem) clamp(2rem, 7vw, 8rem);
}
.eyebrow, .section-number {
  color: var(--gold-light);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero h1 { margin: 0 0 1.25rem; font: 500 clamp(4rem, 9vw, 8rem)/0.9 var(--serif); letter-spacing: -0.055em; }
.hero h1 span { display: block; margin-top: 1.25rem; color: var(--gold); font: 500 clamp(1.35rem, 2.4vw, 2rem)/1 var(--serif); letter-spacing: 0.08em; }
.role { margin-bottom: 0.2rem; color: var(--white); font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 700; }
.institution { max-width: 580px; margin-bottom: 2rem; color: #c7d6e1; line-height: 1.55; }
.hero-intro { max-width: 640px; margin-bottom: 2rem; color: #e1e8ed; font: 400 clamp(1.05rem, 1.6vw, 1.25rem)/1.7 var(--serif); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0.65rem 1.1rem; border: 1px solid transparent; font-size: 0.9rem; font-weight: 700; text-decoration: none; }
.button-primary { color: var(--navy); background: var(--gold); }
.button-primary:hover { background: var(--gold-light); }
.button-secondary { border-color: rgba(255,255,255,.35); color: var(--white); }
.button-secondary:hover { border-color: var(--white); }
.portrait-wrap { position: relative; margin: 0; min-height: 620px; align-self: stretch; }
.portrait-frame { height: 100%; overflow: hidden; }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 28%; filter: saturate(0.78) contrast(1.04); }
.portrait-wrap::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--navy) 0%, transparent 24%), linear-gradient(0deg, rgba(11,41,66,.74), transparent 34%); }
.portrait-wrap figcaption { position: absolute; z-index: 2; right: 2rem; bottom: 1.5rem; left: 2rem; display: flex; justify-content: space-between; gap: 1rem; color: #fff; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }

.content-shell { width: min(calc(100% - 3rem), var(--content)); margin: 0 auto; display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: clamp(2.5rem, 6vw, 6rem); }
.section-index { position: sticky; top: 105px; height: max-content; padding-top: 7rem; }
.section-index > p { margin-bottom: 1.2rem; color: var(--muted); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
.section-index ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.section-index li { border-bottom: 1px solid var(--line); }
.section-index a { display: flex; gap: 0.8rem; padding: 0.75rem 0; color: var(--muted); font-size: 0.84rem; text-decoration: none; }
.section-index a span { color: var(--gold); font-size: 0.72rem; font-weight: 800; }
.section-index a:hover, .section-index a[aria-current="true"] { color: var(--navy); }
.content-column { min-width: 0; }
.section { padding: clamp(5rem, 10vw, 9rem) 0; border-bottom: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: 70px 1fr; align-items: start; margin-bottom: 3.5rem; }
.section-number { margin: 0.35rem 0 0; color: var(--blue); }
.section h2, .contact-section h2 { margin: 0; font: 500 clamp(2.6rem, 5vw, 4.4rem)/1 var(--serif); letter-spacing: -0.04em; }
.about-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr); gap: clamp(2rem, 6vw, 5rem); }
.lead-copy { color: #263b4b; font: 400 clamp(1.15rem, 1.7vw, 1.4rem)/1.75 var(--serif); }
.prose p:last-child { margin-bottom: 0; }
.at-a-glance { margin: 0; border-top: 3px solid var(--gold); }
.at-a-glance div { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.at-a-glance dt { margin-bottom: 0.25rem; color: var(--muted); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.at-a-glance dd { margin: 0; font-size: 0.92rem; line-height: 1.55; }
.interest-grid { display: grid; grid-template-columns: repeat(2, 1fr); margin-top: 4rem; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.interest-grid article { min-height: 210px; padding: 1.75rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.28); }
.interest-grid span { color: var(--gold); font-size: 0.75rem; font-weight: 800; }
.interest-grid h3 { margin: 2rem 0 0.5rem; font: 500 1.35rem/1.25 var(--serif); }
.interest-grid p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.subsection-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin: 0 0 1rem 70px; }
.subsection-heading h3 { margin: 0; font: 500 1.6rem/1.2 var(--serif); }
.subsection-heading p { margin: 0; color: var(--muted); font-size: 0.8rem; }
.publication-list { margin: 0 0 0 70px; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.publication-list li { display: grid; grid-template-columns: 74px 1fr; gap: 1.2rem; padding: 1.7rem 0; border-bottom: 1px solid var(--line); }
.pub-year { padding-top: 0.2rem; color: var(--blue); font-size: 0.8rem; font-weight: 800; }
.publication-list h4 { margin-bottom: 0.45rem; font: 500 1.18rem/1.45 var(--serif); }
.publication-list h4 a { text-decoration-thickness: 1px; }
.publication-list p { margin-bottom: 0.2rem; color: var(--muted); font-size: 0.85rem; line-height: 1.5; }
.publication-list .venue { color: var(--ink); }
.split-layout { display: grid; grid-template-columns: minmax(180px, 0.35fr) minmax(0, 0.65fr); gap: clamp(2rem, 7vw, 6rem); margin-left: 70px; }
.section-intro { color: var(--muted); font: 400 1.08rem/1.65 var(--serif); }
.course-list, .journal-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.course-list li { display: flex; flex-direction: column; gap: 0.3rem; padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
.course-list span { color: var(--muted); font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.course-list strong { font: 500 1.16rem/1.4 var(--serif); }
.timeline { margin-left: 70px; border-top: 1px solid var(--ink); }
.timeline article { display: grid; grid-template-columns: 100px 1fr; gap: 2rem; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.timeline-year { color: var(--gold); font-size: 0.86rem; font-weight: 800; }
.timeline h3 { margin-bottom: 0.4rem; font: 500 1.4rem/1.3 var(--serif); }
.timeline p { margin-bottom: 0.4rem; color: var(--muted); }
.timeline .detail { color: var(--ink); font-size: 0.85rem; }
.journal-list li { padding: 0.75rem 0; border-bottom: 1px solid var(--line); font: 500 1.05rem/1.4 var(--serif); }

.contact-section { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr); gap: clamp(2rem, 8vw, 8rem); padding: clamp(5rem, 10vw, 8rem) 0; }
.contact-section .section-number { margin-bottom: 1rem; color: var(--blue); }
.contact-section h2 { margin-bottom: 1rem; }
.contact-section > div:first-child > p:last-child { max-width: 400px; color: var(--muted); }
.contact-details { display: flex; flex-direction: column; align-items: flex-start; gap: 1.5rem; }
.contact-email { font: 500 clamp(1.25rem, 2.4vw, 2rem)/1.2 var(--serif); text-decoration-thickness: 1px; }
.contact-email span, .text-link span { color: var(--gold); }
.contact-details address { color: var(--muted); font-style: normal; }
.text-link { color: var(--blue); font-size: 0.9rem; font-weight: 700; }
.site-footer { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding: 2rem max(1.5rem, calc((100vw - var(--content)) / 2)); color: #c7d6e1; background: var(--navy); font-size: 0.78rem; }
.site-footer p { margin: 0; }
.site-footer p:nth-child(2) { text-align: center; }
.site-footer a { justify-self: end; color: var(--white); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-copy { order: 2; margin-top: -7rem; padding-top: 10rem; background: linear-gradient(transparent, var(--navy) 6rem); }
  .portrait-wrap { order: 1; min-height: 68svh; }
  .portrait-wrap::after { background: linear-gradient(0deg, var(--navy) 0%, transparent 45%); }
  .content-shell { grid-template-columns: 1fr; }
  .section-index { display: none; }
  .content-column { width: min(100%, 760px); margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  html { scroll-padding-top: 70px; }
  .nav-shell { width: min(calc(100% - 2rem), var(--content)); min-height: 64px; }
  .menu-button { display: inline-flex; align-items: center; gap: 0.7rem; border: 0; color: var(--navy); background: transparent; font-size: 0.82rem; font-weight: 700; }
  .menu-lines { width: 20px; height: 12px; border-top: 2px solid currentColor; border-bottom: 2px solid currentColor; }
  .primary-nav { position: absolute; top: 64px; right: 0; left: 0; display: none; padding: 0.6rem 1rem 1.2rem; border-bottom: 1px solid var(--line); background: var(--paper); box-shadow: 0 14px 30px rgba(11,41,66,.1); }
  .primary-nav.is-open { display: grid; }
  .primary-nav a { padding: 0.65rem 0.5rem; }
  .hero { min-height: auto; }
  .portrait-wrap { min-height: 52svh; }
  .portrait-wrap figcaption { right: 1rem; left: 1rem; }
  .hero-copy { padding-right: 1.5rem; padding-bottom: 4rem; padding-left: 1.5rem; }
  .hero h1 { font-size: clamp(3.6rem, 18vw, 5.5rem); }
  .content-shell { width: min(calc(100% - 2rem), var(--content)); }
  .section-heading { grid-template-columns: 42px 1fr; margin-bottom: 2.5rem; }
  .interest-grid { grid-template-columns: 1fr; }
  .subsection-heading, .publication-list, .split-layout, .timeline { margin-left: 42px; }
  .subsection-heading { align-items: flex-start; flex-direction: column; }
  .publication-list li { grid-template-columns: 52px 1fr; gap: 0.7rem; }
  .split-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .timeline article { grid-template-columns: 60px 1fr; gap: 1rem; }
  .contact-section { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; text-align: left; }
  .site-footer p:nth-child(2) { text-align: left; }
  .site-footer a { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}