:root {
  --paper: #ffffff;
  --surface: #ffffff;
  --surface-muted: #fafbfc;
  --ink: #202a35;
  --ink-soft: #5b6470;
  --line: #e1e5e9;
  --accent: #35536f;
  --accent-dark: #203b55;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --container: 1000px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { color: var(--accent-dark); }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 1000; padding: 10px 16px;
  transform: translateY(-160%); background: var(--ink); color: #fff; text-decoration: none;
}
.skip-link:focus { transform: translateY(0); color: #fff; }

.site-header { position: relative; z-index: 100; border-bottom: 1px solid var(--line); background: var(--surface); }
.nav-wrap {
  display: flex; min-height: 72px; align-items: center; justify-content: space-between; gap: 32px;
  width: min(calc(100% - 48px), var(--container)); margin: 0 auto;
}
.brand { color: var(--ink); font-size: 1.05rem; font-weight: 600; text-decoration: none; white-space: nowrap; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a {
  padding: 8px 0; border-bottom: 1px solid transparent; color: var(--ink-soft);
  font-size: .86rem; font-weight: 500; text-decoration: none;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { border-color: var(--accent); color: var(--accent-dark); }
.menu-toggle {
  display: none; align-items: center; justify-content: center; width: 44px; height: 44px;
  border: 1px solid var(--line); border-radius: 3px; background: var(--surface); color: var(--ink); cursor: pointer;
}
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
  display: block; width: 17px; height: 1.5px; background: currentColor; content: "";
}
.menu-toggle span { position: relative; }
.menu-toggle span::before { position: absolute; top: -5px; }
.menu-toggle span::after { position: absolute; top: 5px; }
.menu-toggle[aria-expanded="true"] span { background: transparent; }
.menu-toggle[aria-expanded="true"] span::before { transform: translateY(5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span::after { transform: translateY(-5px) rotate(-45deg); }

.container { width: min(calc(100% - 48px), var(--container)); margin: 0 auto; }
.narrow { width: min(100%, 820px); }
.hero {
  display: grid; grid-template-columns: minmax(0,1fr) 150px; align-items: center;
  gap: clamp(40px,6vw,72px); padding: 52px 0 44px;
}
.eyebrow {
  margin: 0 0 12px; color: var(--ink-soft); font-size: .85rem;
  font-weight: 500; line-height: 1.5;
}
.hero h1, .page-hero h1 {
  margin: 0; font-size: clamp(2rem,4vw,2.65rem); font-weight: 600;
  letter-spacing: -.035em; line-height: 1.2;
}
.hero-lead { max-width: 700px; margin: 20px 0 14px; color: var(--ink); font-size: 1.05rem; line-height: 1.75; }
.hero-bio { max-width: 700px; margin: 0; color: var(--ink-soft); font-size: .97rem; }
.hero-bio + .hero-bio { margin-top: 12px; }
.hero-lead strong, .hero-bio strong { color: var(--ink); font-weight: 600; }
.hero-links { display: flex; flex-wrap: wrap; column-gap: 22px; row-gap: 0; margin-top: 16px; }
.button-link {
  display: inline-flex; align-items: center; min-height: 44px; padding: 8px 0;
  color: var(--accent); font-size: .87rem; font-weight: 500;
}
.hero-portrait-wrap { justify-self: end; width: 150px; margin: 0; }
.hero-portrait {
  width: 100%; height: auto; border: 1px solid var(--line); border-radius: 3px;
  background: var(--surface); filter: grayscale(100%); object-fit: contain;
}
.portrait-caption { margin: 10px 0 0; color: var(--ink-soft); font-size: .72rem; line-height: 1.5; text-align: center; }

.section { padding: 44px 0 52px; }
.section-compact { padding: 36px 0; }
.section-muted { border-top: 1px solid var(--line); background: var(--surface-muted); }
.section-head { margin-bottom: 26px; }
.section-title { margin: 0; font-size: clamp(1.4rem,2.7vw,1.65rem); font-weight: 600; letter-spacing: -.025em; line-height: 1.3; }
.section-intro { max-width: 680px; margin: 10px 0 0; color: var(--ink-soft); font-size: .94rem; }
.section-kicker { margin: 0 0 8px; color: var(--ink-soft); font-size: .78rem; font-weight: 500; }
.name-highlight { color: var(--ink); font-weight: 600; }

.card-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 28px; }
.plain-card { padding: 20px 0 0; border-top: 1px solid var(--line); }
.focus-index { display: block; margin-bottom: 16px; color: var(--ink-soft); font-size: .8rem; }
.plain-card h3 { margin: 0 0 10px; font-size: 1.08rem; font-weight: 600; line-height: 1.4; }
.plain-card p { margin: 0; color: var(--ink-soft); font-size: .93rem; }

.news-list, .timeline, .publication-list, .patent-list { margin: 0; padding: 0; list-style: none; }
.news-item { display: grid; grid-template-columns: 104px minmax(0,1fr); gap: 24px; padding: 14px 0; border-top: 1px solid var(--line); }
.news-date { padding-top: 3px; color: var(--ink-soft); font-size: .79rem; font-weight: 500; }
.news-item p { margin: 0; color: var(--ink-soft); font-size: .94rem; }
.news-item strong { color: var(--ink); font-weight: 600; }
.archive-details { border-bottom: 1px solid var(--line); }
.archive-details summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 0; color: var(--accent); font-size: .84rem; font-weight: 500; cursor: pointer; list-style: none; }
.archive-details summary::-webkit-details-marker { display: none; }
.archive-details summary::after { content: "+"; font-size: 1.2rem; }
.archive-details[open] summary::after { content: "\2212"; }
.timeline-item { display: grid; grid-template-columns: 132px minmax(0,1fr); gap: 28px; padding: 21px 0; border-top: 1px solid var(--line); }
.timeline-period { padding-top: 2px; color: var(--ink-soft); font-size: .81rem; font-weight: 500; }
.timeline-item h3 { margin: 0; font-size: 1.12rem; font-weight: 600; line-height: 1.4; }
.timeline-role { margin: 4px 0 7px; color: var(--ink); font-size: .91rem; font-weight: 500; }
.timeline-description { max-width: 720px; margin: 0; color: var(--ink-soft); font-size: .93rem; }

.page-hero { padding: 46px 0 36px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(2rem,4vw,2.45rem); }
.page-hero p { max-width: 720px; margin: 16px 0 0; color: var(--ink-soft); font-size: 1rem; line-height: 1.7; }
.page-hero .eyebrow { margin: 0 0 12px; font-size: .85rem; }
.page-meta { display: flex; flex-wrap: wrap; column-gap: 20px; row-gap: 8px; margin-top: 18px; }
.meta-chip, .venue-chip { display: inline-flex; align-items: center; color: var(--ink-soft); font-size: .78rem; font-weight: 500; line-height: 1.5; }
.venue-chip { color: var(--accent); font-weight: 600; }
.publication-item { display: grid; grid-template-columns: 114px minmax(0,1fr); gap: 24px; padding: 22px 0; border-top: 1px solid var(--line); }
.publication-meta { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; padding-top: 2px; }
.publication-year { color: var(--ink-soft); font-size: .77rem; }
.publication-title { margin: 0 0 8px; font-size: 1.08rem; font-weight: 600; letter-spacing: -.01em; line-height: 1.5; }
.publication-authors { margin: 0; color: var(--ink-soft); font-size: .88rem; }
.publication-authors strong { color: var(--ink); font-weight: 600; }
.publication-authors .author-role {
  padding: .12em .35em; border-radius: 3px; color: #264b70; background: #e9f0f7;
  font-weight: 700; -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.publication-authors .author-role--corresponding { color: #215e4b; background: #e8f3ee; }
.publication-links { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 10px; }
.text-link { color: var(--accent); font-size: .82rem; font-weight: 500; }

.talk-grid, .project-grid { display: grid; grid-template-columns: 1fr; gap: 0; }
.talk-card, .project-card { display: grid; grid-template-columns: 180px minmax(0,1fr); gap: 28px; padding: 24px 0; border-top: 1px solid var(--line); }
.talk-card:last-child, .project-card:last-child { border-bottom: 1px solid var(--line); }
.talk-image, .project-image { width: 100%; aspect-ratio: 16/9; border: 1px solid var(--line); background: var(--surface-muted); object-fit: contain; }
.talk-body, .project-body { min-width: 0; }
.talk-body h2, .project-body h3 { margin: 0 0 8px; font-size: 1.12rem; font-weight: 600; line-height: 1.45; }
.talk-tags { margin: 0 0 12px; color: var(--ink-soft); font-size: .87rem; }
.project-card.text-only { display: block; }
.project-card.text-only .project-body { display: grid; grid-template-columns: minmax(180px,.3fr) minmax(0,.7fr); gap: 32px; }
.project-label { margin: 3px 0 0; color: var(--ink-soft); font-size: .85rem; font-weight: 500; line-height: 1.6; }
.project-body p:not(.project-label) { margin: 0; color: var(--ink-soft); font-size: .92rem; }

.honors-visual { width: 100%; max-height: 440px; border: 1px solid var(--line); object-fit: contain; }
.split-layout { display: grid; grid-template-columns: minmax(230px,.38fr) minmax(0,.62fr); gap: 36px; align-items: start; }
.honor-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.honor-list li, .patent-list li { padding: 15px 0; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .94rem; }
.honor-list strong, .patent-list strong { color: var(--ink); font-weight: 600; }
.certificate-links { display: flex; flex-wrap: wrap; column-gap: 22px; row-gap: 0; margin-top: 16px; }

.site-footer { padding: 32px 0 26px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; }
.footer-name { margin: 0 0 5px; font-size: 1rem; font-weight: 600; }
.footer-note, .footer-copy { margin: 0; color: var(--ink-soft); font-size: .76rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; }
.footer-links a { color: var(--accent); font-size: .79rem; }
.footer-copy { grid-column: 1/-1; margin-top: 4px; }

@media (max-width: 760px) {
  .menu-toggle { display: inline-flex; }
  .site-nav { position: absolute; top: 63px; right: 24px; left: 24px; display: none; gap: 0; padding: 10px 18px; border: 1px solid var(--line); background: var(--surface); }
  .site-nav.is-open { display: grid; }
  .site-nav a { padding: 11px 0; }
  .nav-wrap { min-height: 64px; }
  .hero { grid-template-columns: minmax(0,1fr) 120px; gap: 28px; padding: 40px 0 32px; }
  .hero-portrait-wrap { width: 120px; }
  .split-layout { grid-template-columns: 1fr; gap: 12px; }
  .card-grid { grid-template-columns: 1fr; gap: 22px; }
  .plain-card { padding-top: 18px; }
  .focus-index { margin-bottom: 10px; }
  .section { padding: 36px 0 40px; }
}
@media (max-width: 540px) {
  .container, .nav-wrap { width: calc(100% - 40px); }
  .site-nav { right: 20px; left: 20px; }
  .hero { grid-template-columns: 1fr; gap: 24px; }
  .hero-portrait-wrap { justify-self: start; width: 104px; }
  .portrait-caption { display: none; }
  .hero-links { column-gap: 20px; }
  .section-head { margin-bottom: 22px; }
  .news-item, .timeline-item, .publication-item { grid-template-columns: 1fr; gap: 6px; }
  .publication-meta { flex-direction: row; align-items: center; gap: 12px; }
  .talk-card, .project-card { grid-template-columns: 1fr; gap: 16px; }
  .talk-image, .project-image { max-width: 220px; }
  .project-card.text-only .project-body { grid-template-columns: 1fr; gap: 8px; }
  .page-hero { padding: 36px 0 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 16px; }
  .footer-links { justify-content: flex-start; }
}
@media print {
  .site-header, .menu-toggle, .hero-links, .site-footer { display: none !important; }
  body { background: #fff; color: #000; }
  .container { width: 100%; }
  .section, .section-compact, .page-hero { padding: 24px 0; }
  .section-muted { background: #fff; }
  .talk-card, .project-card, .publication-item, .timeline-item { break-inside: avoid; }
}