:root {
  --paper: #ffffff;
  --surface: #ffffff;
  --ink: #1a232c;
  --muted: #5c6872;
  --line: #dce1e3;
  --accent: #006b65;
  --accent-soft: #e6f1ef;
  --warm: #b6492d;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "IBM Plex Sans", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  background: linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), rgba(26, 35, 44, 0.025) calc(100% - 1px)), var(--paper);
  background-size: 32px 100%;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--warm); outline-offset: 4px; }
svg { width: 18px; height: 18px; stroke-width: 1.8; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  min-height: 66px;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: 0 max(28px, calc((100vw - 1240px) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  backdrop-filter: blur(12px);
}
.wordmark { flex: 0 0 auto; font-family: var(--serif); font-size: 19px; font-weight: 600; }
nav { display: flex; gap: 25px; font-size: 14px; font-weight: 500; }
nav a { padding: 21px 0 18px; border-bottom: 3px solid transparent; transition: color 160ms ease, border-color 160ms ease; }
nav a:hover { border-color: var(--accent); color: var(--accent); }

.page-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 820px);
  gap: clamp(48px, 8vw, 112px);
  width: min(1240px, calc(100% - 56px));
  margin: 0 auto;
  padding: 68px 0 100px;
}
.profile-column { position: sticky; top: 106px; height: fit-content; }
.portrait { display: block; width: 168px; height: 168px; border: 1px solid var(--line); border-radius: 4px; object-fit: cover; filter: saturate(0.85) contrast(1.03); }
.profile-heading { margin-top: 25px; }
.kicker, .section-index { margin: 0 0 8px; color: var(--accent); font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
h1, h2, h3, p { letter-spacing: 0; }
h1 { margin: 0; font-family: var(--serif); font-size: 31px; font-weight: 600; line-height: 1.1; }
.role { margin: 8px 0 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.affiliations { margin-top: 24px; padding: 18px 0; border-block: 1px solid var(--line); }
.affiliations p { display: grid; grid-template-columns: 20px 1fr; gap: 10px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.45; }
.affiliations p + p { margin-top: 14px; }
.affiliations svg { width: 16px; color: var(--accent); }
.profile-links { display: flex; gap: 18px; margin-top: 20px; }
.profile-links a, .inline-link { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-size: 13px; font-weight: 600; }
.inline-link { font-size: 15px; }
.profile-links a:hover, .inline-link:hover, .publication h3 a:hover, .news-list a:hover { color: var(--warm); }
.interest-list { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 24px; }
.interest-list span { padding: 4px 8px; border: 1px solid #c6dbd8; border-radius: 3px; background: var(--accent-soft); color: #235c57; font-size: 11px; font-weight: 500; }

.content-column { min-width: 0; }
.section-block { padding: 0 0 24px; }
.section-block + .section-block { padding-top: 24px; }
.section-block:last-child { border-bottom: 0; }
.section-heading { margin-bottom: 16px; }
.section-heading h2, .intro h2 { margin: 0; font-family: var(--serif); font-size: clamp(24px, 2vw, 26px); font-weight: 600; line-height: 1.15; }
.intro h2 { max-width: 780px; }
.intro .lead { margin: 34px 0 16px; color: var(--ink); font-size: 18px; line-height: 1.6; }
.intro > p:last-of-type { margin: 0; color: var(--muted); }
.intro .research-grid { margin-top: 34px; }
.intro strong, .authors strong { font-weight: 600; }

.news-list { margin: 0; padding: 0; list-style: none; }
.news-list li { display: grid; grid-template-columns: 80px 1fr; gap: 16px; padding: 11px 0; border-top: 1px solid var(--line); }
.news-list li:last-child { border-bottom: 1px solid var(--line); }
.news-list time { color: var(--warm); font-size: 12px; font-weight: 600; text-transform: uppercase; }
.news-list p { margin: 0; font-size: 16px; line-height: 1.55; }
.news-list a { color: var(--accent); font-weight: 600; }

.research-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); }
.research-grid article { min-width: 0; padding: 28px 25px 28px 0; }
.research-grid article + article { padding-left: 25px; border-left: 1px solid var(--line); }
.research-grid span { color: var(--warm); font-family: var(--serif); font-size: 14px; font-weight: 600; }
.research-grid h3 { margin: 19px 0 12px; font-family: var(--serif); font-size: 20px; font-weight: 600; line-height: 1.25; }
.research-grid p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.6; }

.split-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.publication-list { border-top: 2px solid var(--ink); }
.publication { display: grid; grid-template-columns: 64px 1fr; gap: 24px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.publication-year { color: var(--warm); font-family: var(--serif); font-size: 15px; font-weight: 600; }
.publication h3 { margin: 0; font-family: var(--serif); font-size: 18px; font-weight: 600; line-height: 1.35; }
.authors, .venue { margin: 10px 0 0; font-size: 14px; }
.venue { margin-top: 3px; color: var(--muted); font-style: italic; }
.publication-links { display: flex; gap: 8px; margin-top: 15px; }
.publication-links a { padding: 3px 9px; border: 1px solid var(--accent); border-radius: 3px; color: var(--accent); font-size: 11px; font-weight: 600; text-transform: uppercase; }
.publication-links a:hover { background: var(--accent); color: var(--surface); }

.timeline-group-title { margin: 0 0 22px; color: var(--accent); font-family: var(--sans); font-size: 14px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.timeline + .timeline-group-title { margin-top: 44px; }
.timeline { position: relative; margin-left: 6px; padding-left: 34px; border-left: 1px solid var(--line); }
.timeline article { position: relative; }
.timeline article + article { margin-top: 36px; }
.timeline-marker { position: absolute; top: 6px; left: -41px; width: 13px; height: 13px; border: 3px solid var(--paper); border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.timeline-date { margin: 0 0 3px; color: var(--warm); font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.timeline h3 { margin: 0; font-family: var(--serif); font-size: 18px; font-weight: 600; line-height: 1.35; }
.timeline article p:last-child, .service-note { margin: 4px 0 0; color: var(--muted); font-size: 15px; line-height: 1.55; }
.award-list { border-top: 2px solid var(--ink); }
.award { display: grid; grid-template-columns: 84px 1fr; gap: 24px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.award time { color: var(--warm); font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.award h3 { margin: 0; font-family: var(--serif); font-size: 18px; font-weight: 600; line-height: 1.35; }
.award p { margin: 7px 0 0; color: var(--muted); font-size: 15px; line-height: 1.55; }
.service-note { max-width: 680px; padding: 22px 24px; border-left: 3px solid var(--accent); background: var(--accent-soft); }

footer { display: flex; justify-content: space-between; gap: 24px; padding: 22px max(28px, calc((100vw - 1240px) / 2)); border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; text-transform: uppercase; }
.reveal { opacity: 1; transform: translateY(0); }
.js .reveal.pending { opacity: 0; transform: translateY(14px); transition: opacity 500ms ease, transform 500ms ease; }
.js .reveal.pending.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 960px) {
  nav { gap: 16px; }
  nav a:nth-last-child(-n + 2) { display: none; }
  .page-shell { grid-template-columns: 220px minmax(0, 1fr); gap: 50px; }
  .research-grid { grid-template-columns: 1fr; }
  .research-grid article, .research-grid article + article { padding: 24px 0; border-left: 0; }
  .research-grid article + article { border-top: 1px solid var(--line); }
}

@media (max-width: 720px) {
  .site-header { min-height: 58px; }
  nav { display: none; }
  .page-shell { grid-template-columns: 1fr; width: min(100% - 36px, 640px); gap: 58px; padding-top: 38px; }
  .profile-column { position: static; display: grid; grid-template-columns: 112px 1fr; gap: 0 22px; }
  .portrait { grid-row: 1 / span 2; width: 112px; height: 112px; }
  .profile-heading { margin: 0; }
  h1 { font-size: 28px; }
  .affiliations, .profile-links, .interest-list { grid-column: 1 / -1; }
  .affiliations { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 24px; }
  .affiliations p + p { margin-top: 0; }
  .section-block { padding-bottom: 20px; }
  .section-block + .section-block { padding-top: 20px; }
  .news-list li { grid-template-columns: 70px 1fr; gap: 12px; }
  .split-heading { align-items: flex-start; }
}

@media (max-width: 460px) {
  .profile-column { grid-template-columns: 88px 1fr; gap: 0 17px; }
  .portrait { width: 88px; height: 88px; }
  h1 { font-size: 25px; }
  .affiliations { grid-template-columns: 1fr; }
  .intro .lead { font-size: 17px; }
  .news-list li, .publication, .award { grid-template-columns: 1fr; gap: 8px; }
  .split-heading { display: block; }
  .inline-link { margin-top: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}