:root {
  --ink: #18242c;
  --muted: #62717a;
  --accent: #3f7fa3;
  --accent-dark: #2b6281;
  --accent-soft: #e7f1f6;
  --surface: #ffffff;
  --soft: #f7f9fa;
  --line: #dfe6ea;
  --max-width: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--surface); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: var(--accent-dark); text-underline-offset: 3px; }
a:hover { color: #194d6a; }
img { display: block; max-width: 100%; }
h1,h2,h3,p { margin-top: 0; }
h1 { margin-bottom: 18px; font-size: clamp(3.2rem, 7vw, 5.8rem); line-height: .96; letter-spacing: -.055em; font-weight: 760; }
h2 { margin-bottom: 18px; font-size: clamp(1.8rem, 3.2vw, 2.65rem); line-height: 1.12; letter-spacing: -.03em; font-weight: 720; }
h3 { margin-bottom: 7px; font-size: 1.08rem; line-height: 1.35; }
p { margin-bottom: 16px; }
.container { width: min(calc(100% - 48px), var(--max-width)); margin: 0 auto; }
.skip-link { position: fixed; left: 12px; top: -80px; padding: 10px 14px; background: var(--ink); color: white; z-index: 9999; }
.skip-link:focus { top: 12px; }
.eyebrow { margin-bottom: 12px; color: var(--accent-dark); font-size: .73rem; font-weight: 800; letter-spacing: .115em; text-transform: uppercase; }
.muted { color: var(--muted); }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(223,230,234,.9); backdrop-filter: blur(12px); }
.nav-wrap { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { color: var(--ink); text-decoration: none; font-weight: 800; letter-spacing: -.015em; }
.site-nav { display: flex; gap: 25px; align-items: center; }
.site-nav a { color: #43545d; text-decoration: none; font-size: .86rem; font-weight: 650; }
.site-nav a:hover { color: var(--accent-dark); }
.nav-toggle { display: none; }

.hero { padding: 78px 0 82px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.55fr) minmax(240px,.55fr); align-items: center; gap: 80px; }
.hero-role { margin-bottom: 25px; color: var(--accent-dark); font-weight: 680; font-size: 1.03rem; }
.hero-lede { max-width: 760px; color: #34454f; font-size: clamp(1.18rem, 2vw, 1.48rem); line-height: 1.48; }
.hero-links { display: flex; flex-wrap: wrap; gap: 12px 20px; margin-top: 28px; }
.hero-links a { font-size: .92rem; font-weight: 700; text-decoration: none; }
.hero-links .cv-link { padding-left: 18px; border-left: 1px solid var(--line); }
.hero-portrait { margin: 0; justify-self: end; width: min(100%, 290px); }
.hero-portrait img { display: block; width: 100%; height: auto; border-radius: 18px; box-shadow: 0 14px 42px rgba(40,72,88,.12); }

.section { padding: 76px 0; }
.section-soft { background: var(--soft); border-top: 1px solid #edf1f3; border-bottom: 1px solid #edf1f3; }
.two-column { display: grid; grid-template-columns: 300px minmax(0,1fr); gap: 84px; align-items: start; }
.section-label { position: sticky; top: 96px; }
.section-label .muted { margin-top: 14px; }
.prose { max-width: 735px; font-size: 1.02rem; }
.prose p { margin-bottom: 17px; }
.research-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.research-tags span { padding: 5px 10px; border: 1px solid #cfdae0; border-radius: 999px; color: #42555f; background: white; font-size: .79rem; }

.news-list { border-top: 1px solid var(--line); }
.news-list article { display: grid; grid-template-columns: 82px 1fr; gap: 22px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.news-list time { color: var(--accent-dark); font-size: .8rem; font-weight: 800; }
.news-list p { margin: 0; color: #46565f; font-size: .95rem; }
.news-list a { white-space: nowrap; font-size: .88rem; font-weight: 700; text-decoration: none; }

.research-feature { display: grid; grid-template-columns: .9fr 1.1fr; gap: 68px; align-items: center; }
.research-photo-wrap img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: center 34%; border-radius: 14px; }
.research-copy > p:not(.eyebrow) { color: #4d5f68; }
.focus-list { margin-top: 30px; border-top: 1px solid var(--line); }
.focus-list > div { display: grid; grid-template-columns: 155px 1fr; gap: 18px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.focus-list strong { font-size: .91rem; }
.focus-list span { color: var(--muted); font-size: .91rem; }
.inline-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 24px; }
.inline-links a { font-size: .9rem; font-weight: 700; text-decoration: none; }

.publications-wrap { max-width: 980px; }
.publications-head { display: grid; grid-template-columns: 1fr .7fr; gap: 56px; align-items: end; margin-bottom: 28px; }
.publications-head p:last-child { color: var(--muted); }
.pub-filters { display: flex; flex-wrap: wrap; gap: 7px; margin: 0 0 22px; }
.pub-filter { appearance: none; border: 1px solid #cfdadf; border-radius: 999px; background: white; color: #40535d; padding: 7px 13px; font: inherit; font-size: .82rem; font-weight: 700; cursor: pointer; }
.pub-filter.active { background: var(--accent-dark); border-color: var(--accent-dark); color: white; }
.publication-list { border-top: 1px solid var(--line); }
.publication { display: grid; grid-template-columns: 72px 1fr; gap: 24px; padding: 23px 0 24px; border-bottom: 1px solid var(--line); }
.publication[hidden] { display: none; }
.pub-year { padding-top: 4px; color: var(--accent-dark); font-size: .8rem; font-weight: 800; }
.publication h3 { margin-bottom: 8px; font-size: 1.04rem; font-weight: 750; }
.pub-authors { margin-bottom: 5px; color: #5a6870; font-size: .88rem; line-height: 1.5; }
.pub-authors strong { color: var(--ink); }
.pub-venue { margin-bottom: 5px; color: var(--muted); font-size: .87rem; }
.publication a { margin-right: 10px; font-size: .82rem; font-weight: 750; text-decoration: none; }
.pub-kicker { display: inline-block; margin-bottom: 7px; color: #a85a25; font-size: .68rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }

.poster-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.poster-item { min-width: 0; }
.poster-preview { display: block; overflow: hidden; aspect-ratio: 0.71; border: 1px solid var(--line); background: #eef2f4; }
.poster-preview img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform .2s ease; }
.poster-preview:hover img { transform: scale(1.015); }
.poster-meta { padding-top: 16px; }
.poster-meta span { color: var(--accent-dark); font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }
.poster-meta h3 { margin-top: 6px; font-size: 1.08rem; }
.poster-meta p { color: var(--muted); font-size: .89rem; }
.poster-meta a { font-size: .84rem; font-weight: 750; text-decoration: none; }
.compact-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.compact-list li { display: grid; grid-template-columns: 60px 1fr; gap: 16px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.compact-list span { color: var(--accent-dark); font-size: .8rem; font-weight: 800; }
.compact-list p { margin: 0; color: var(--muted); font-size: .92rem; }

.simple-button { display: inline-block; margin-top: 10px; padding: 8px 13px; border: 1px solid #cbd7dc; border-radius: 999px; background: white; text-decoration: none; font-size: .84rem; font-weight: 750; }

.other-contributions { display: grid; grid-template-columns: .72fr 1.28fr; gap: 56px; align-items: start; margin-top: 54px; padding-top: 38px; border-top: 1px solid var(--line); }
.other-contributions h3 { margin-top: 2px; }

.timeline { border-top: 1px solid var(--line); }
.timeline article { display: grid; grid-template-columns: 120px 1fr; gap: 22px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.timeline time { color: var(--accent-dark); font-size: .79rem; font-weight: 800; }
.timeline h3 { margin-bottom: 3px; }
.timeline p { margin-bottom: 4px; color: var(--muted); font-size: .92rem; }
.timeline .timeline-org { color: #3f515b; font-weight: 680; }

.contact { padding: 66px 0; background: #203d4e; color: white; }
.contact-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: end; }
.contact .eyebrow { color: #a8d4e9; }
.contact h2 { margin-bottom: 10px; }
.contact p { color: #d1dce2; }
.contact-links { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.contact-links a { color: white; font-weight: 700; text-decoration: none; }
.site-footer { padding: 22px 0 30px; border-top: 1px solid var(--line); color: var(--muted); font-size: .8rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; }
.footer-inner p { margin: 0; }

@media (max-width: 860px) {
  .site-nav { position: absolute; left: 20px; right: 20px; top: 58px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 9px; background: white; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 12px 35px rgba(35,65,80,.12); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 9px 10px; }
  .nav-toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; background: white; padding: 7px 12px; color: var(--ink); font: inherit; font-size: .82rem; font-weight: 700; }
  .hero-grid { grid-template-columns: 1fr 210px; gap: 42px; }
  .two-column { grid-template-columns: 1fr; gap: 28px; }
  .section-label { position: static; max-width: 680px; }
  .research-feature { grid-template-columns: 1fr; gap: 36px; }
  .research-photo-wrap { max-width: 650px; }
  .poster-grid { grid-template-columns: repeat(2,1fr); }
  .other-contributions { grid-template-columns: 1fr; gap: 18px; }
  .contact-inner { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 620px) {
  .container { width: min(calc(100% - 30px), var(--max-width)); }
  .hero { padding: 48px 0 58px; }
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero-portrait { width: 210px; grid-row: 1; justify-self: start; }
  h1 { font-size: clamp(3.4rem, 17vw, 4.8rem); }
  .hero-links .cv-link { padding-left: 0; border-left: 0; }
  .section { padding: 58px 0; }
  .publications-head { grid-template-columns: 1fr; gap: 4px; }
  .publication { grid-template-columns: 48px 1fr; gap: 15px; }
  .poster-grid { grid-template-columns: 1fr; }
  .poster-preview { max-height: 560px; }
  .focus-list > div { grid-template-columns: 1fr; gap: 2px; }
  .timeline article { grid-template-columns: 1fr; gap: 6px; }
  .news-list article { grid-template-columns: 68px 1fr; gap: 12px; }
  .footer-inner { flex-direction: column; gap: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

/* v4 refinements */
.publications-head-simple {
  display: block;
  margin-bottom: 24px;
}
.publications-head-simple h2 { margin: 0; }