:root {
  --paper: #fff;
  --ink: #20242a;
  --muted: #65707b;
  --faint: #f6f7f8;
  --line: #dfe3e6;
  --accent: #175c9c;
  --accent-dark: #0d416f;
  --accent-soft: #edf4fa;
  --width: 1060px;
  --sans: "Inter", Arial, sans-serif;
  --serif: "Newsreader", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 15px/1.68 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; text-underline-offset: 3px; }
a:hover { color: var(--accent-dark); text-decoration: underline; }
button { color: inherit; font: inherit; }
::selection { color: #fff; background: var(--accent); }
.container { width: min(calc(100% - 40px), var(--width)); margin-inline: auto; }

.skip-link {
  position: fixed; z-index: 100; top: 8px; left: 8px; padding: 8px 12px;
  color: #fff; background: var(--accent-dark); transform: translateY(-150%);
}
.skip-link:focus { transform: none; }

.site-header {
  position: sticky; z-index: 20; top: 0; border-bottom: 1px solid rgba(223,227,230,.9);
  background: rgba(255,255,255,.96); backdrop-filter: blur(12px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: min(calc(100% - 40px), var(--width)); min-height: 64px; margin-inline: auto;
}
.brand { color: var(--ink); font: 600 22px var(--serif); letter-spacing: -.02em; }
.brand:hover { color: var(--ink); text-decoration: none; }
.header-nav { display: flex; align-items: center; gap: 34px; }
.primary-nav, .utility-nav { display: flex; align-items: center; gap: 23px; }
.header-nav a { color: #4c555e; font-size: 11px; font-weight: 600; }
.header-nav a:hover { color: var(--accent); text-decoration: none; }
.utility-nav { padding-left: 31px; border-left: 1px solid var(--line); }
.utility-nav a { color: var(--accent); }
.placeholder-link { color: #8b939a !important; cursor: default; }
.nav-toggle { display: none; width: 40px; height: 40px; padding: 10px; border: 0; background: none; cursor: pointer; }
.nav-toggle span { display: block; width: 20px; height: 1px; margin: 6px 0; background: var(--ink); }

.hero {
  min-height: 380px; padding-top: 68px; padding-bottom: 68px;
}
.hero-copy { max-width: 820px; }
.eyebrow { margin: 0 0 11px; color: var(--accent); font-size: 10px; font-weight: 700; letter-spacing: .16em; }
.hero h1 { margin: 0; font: 600 clamp(43px,6vw,62px)/1.04 var(--serif); letter-spacing: -.035em; }
.identity { margin-top: 20px; color: #454d56; font-size: 16px; }
.identity p { margin: 0; }
.identity p:first-child { color: var(--ink); font-weight: 600; }
.tagline {
  width: fit-content; margin: 24px 0 0; padding: 8px 12px;
  border-left: 3px solid var(--accent); color: #37414a; background: var(--accent-soft);
  font-size: 13px; font-weight: 600;
}
.hero-links { display: flex; flex-wrap: wrap; gap: 9px 20px; margin-top: 23px; }
.hero-links a { font-size: 12px; font-weight: 600; }
.hero-links a::before { content: "["; }
.hero-links a::after { content: "]"; }
.page-content { padding-bottom: 90px; }
.section {
  display: grid; grid-template-columns: 180px minmax(0,1fr); gap: 44px;
  padding: 55px 0; border-top: 1px solid var(--line);
}
.section-title span { display: block; margin-bottom: 6px; color: var(--accent); font-size: 9px; font-weight: 700; letter-spacing: .13em; }
.section-title h2 { position: sticky; top: 91px; margin: 0; font: 600 27px/1.15 var(--serif); letter-spacing: -.02em; }
.prose p { max-width: 770px; margin: 0 0 16px; }
.prose p:last-child { margin-bottom: 0; }

.research-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 0; border: 1px solid var(--line); }
.research-item { position: relative; min-width: 0; padding: 24px 22px; border-left: 1px solid var(--line); }
.research-item:first-child { border-left: 0; }
.research-number { color: var(--accent); font-size: 9px; font-weight: 700; letter-spacing: .1em; }
.research-item h3 { margin: 10px 0 10px; font: 600 20px/1.2 var(--serif); }
.research-keywords { min-height: 58px; margin: 0 0 12px !important; color: var(--accent) !important; font-size: 10px !important; font-weight: 600; line-height: 1.5 !important; }
.research-item p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }

.publication-list { margin: 0; padding: 0; list-style: none; counter-reset: publications; }
.publication {
  position: relative; padding: 17px 0 17px 38px; border-top: 1px solid #edf0f2;
  counter-increment: publications;
}
.publication:first-child { padding-top: 0; border-top: 0; }
.publication::before {
  position: absolute; top: 19px; left: 0; color: #9aa2aa; content: counter(publications, decimal-leading-zero);
  font-size: 10px; font-weight: 600; font-variant-numeric: tabular-nums;
}
.publication:first-child::before { top: 2px; }
.publication h3 { margin: 0 0 3px; font: 600 17px/1.35 var(--serif); letter-spacing: -.005em; }
.publication-authors { margin: 0 0 1px; color: #4f5963; font-size: 11.5px; line-height: 1.55; }
.publication-venue { margin: 0; color: var(--muted); font-size: 11.5px; line-height: 1.5; }
.publication-links { display: inline-flex; gap: 7px; margin-top: 4px; font-size: 10px; }

.timeline-item { display: grid; grid-template-columns: 120px minmax(0,1fr); gap: 24px; padding: 0 0 27px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item time { padding-top: 3px; color: var(--muted); font-size: 10.5px; font-weight: 600; font-variant-numeric: tabular-nums; }
.timeline-item > div { position: relative; padding-left: 21px; border-left: 1px solid var(--line); }
.timeline-item > div::before {
  position: absolute; top: 7px; left: -4px; width: 7px; height: 7px;
  border-radius: 50%; background: var(--accent); content: "";
}
.timeline-item h3 { margin: 0 0 3px; font: 600 18px/1.3 var(--serif); }
.timeline-item p { margin: 0; }
.timeline-role { color: #424b54; font-size: 12.5px; font-weight: 600; }
.timeline-detail { color: var(--muted); font-size: 12px; }

.footer { border-top: 1px solid var(--line); background: var(--faint); }
.footer-inner {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 20px; align-items: center;
  min-height: 84px; color: var(--muted); font-size: 10.5px;
}
.footer p { margin: 0; }
.footer a { justify-self: end; }

@media (max-width: 920px) {
  .utility-nav { display: none; }
  .section { grid-template-columns: 150px minmax(0,1fr); gap: 30px; }
  .research-grid { grid-template-columns: 1fr; }
  .research-item, .research-item:first-child { border-top: 1px solid var(--line); border-left: 0; }
  .research-item:first-child { border-top: 0; }
  .research-keywords { min-height: auto; }
}

@media (max-width: 680px) {
  .container, .header-inner { width: min(calc(100% - 32px), var(--width)); }
  .nav-toggle { display: block; }
  .header-nav {
    position: absolute; top: 64px; right: 0; left: 0; display: none; flex-direction: column;
    align-items: stretch; gap: 0; padding: 8px 16px 16px; border-bottom: 1px solid var(--line); background: #fff;
  }
  .header-nav.is-open { display: flex; }
  .primary-nav, .utility-nav { display: flex; flex-direction: column; align-items: stretch; gap: 0; }
  .utility-nav { margin-top: 6px; padding: 6px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .header-nav a { display: block; padding: 8px 0; }
  .hero { min-height: 0; padding-block: 50px; }
  .hero h1 { font-size: 36px; }
  .identity { margin-top: 14px; font-size: 13px; }
  .tagline { margin-top: 18px; font-size: 11px; line-height: 1.55; }
  .hero-links { margin-top: 17px; }
  .section { grid-template-columns: 1fr; gap: 23px; padding: 43px 0; }
  .section-title h2 { position: static; }
  .publication { padding-left: 31px; }
  .publication h3 { font-size: 16px; }
  .timeline-item { grid-template-columns: 90px minmax(0,1fr); gap: 12px; }
  .footer-inner { grid-template-columns: 1fr; gap: 4px; padding-block: 20px; }
  .footer a { justify-self: start; }
}

@media (max-width: 430px) {
  .timeline-item { grid-template-columns: 1fr; gap: 7px; }
}

@media print {
  .site-header, .footer { display: none; }
  .section { break-inside: avoid; }
  a { color: inherit; }
}