:root {
  --ink: #18201d;
  --muted: #5e6964;
  --paper: #f7f6f2;
  --soft: #ecefeb;
  --line: #cfd5d1;
  --green: #174c3c;
  --green-light: #dce9e2;
  --blue: #245da7;
  --mono: "DM Mono", monospace;
  --sans: "Manrope", sans-serif;
  --serif: "Newsreader", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 14px; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img, video { display: block; max-width: 100%; }

.site-header {
  min-height: 76px; padding: 12px 5vw; display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 20; background: rgba(247,246,242,.95); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; background: var(--green); color: white; font: 500 14px/1 var(--mono); }
.brand b, .brand small { display: block; }
.brand b { font-size: 11px; line-height: 1.2; }
.brand small { margin-top: 3px; color: var(--muted); font: 400 8px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
nav { display: flex; gap: 25px; }
nav a { color: var(--muted); font: 500 9px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
nav a:hover { color: var(--green); }

.hero { min-height: 570px; padding: 90px 8vw 80px; display: flex; align-items: center; background: var(--green); color: white; }
.hero-copy { width: 100%; }
.hero h1 { margin: 22px 0 26px; max-width: 900px; font: 600 clamp(52px, 6.8vw, 104px)/.92 var(--sans); letter-spacing: -.065em; }
.eyebrow { margin: 0; color: var(--blue); font: 500 9px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .11em; }
.hero .eyebrow, footer .eyebrow { color: #b9ddc9; }
.hero-summary { max-width: 780px; margin: 0; color: rgba(255,255,255,.78); font-size: 14px; line-height: 1.75; }
.hero-actions { display: flex; gap: 10px; margin-top: 38px; flex-wrap: wrap; }
.button { display: inline-block; border: 1px solid var(--ink); border-radius: 4px; padding: 13px 17px; background: transparent; cursor: pointer; color: var(--ink); font: 500 9px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.button.primary { background: white; border-color: white; color: var(--green); }
.hero .button:not(.primary) { border-color: rgba(255,255,255,.5); color: white; }
.profile-facts { margin: 0; }
dt { font: 500 8px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
dd { margin: 7px 0 0; font-size: 11px; }

.section { padding: 88px 8vw; scroll-margin-top: 75px; }
.section-heading { display: grid; grid-template-columns: 1.4fr .8fr; gap: 8vw; align-items: end; margin-bottom: 44px; }
.section-heading h2 { margin: 13px 0 0; font: 600 clamp(40px, 4.8vw, 68px)/1 var(--sans); letter-spacing: -.055em; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; }

.research-section { background: var(--paper); }
.topic-selector { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.topic-button { min-height: 82px; padding: 19px 18px; border: 0; border-right: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; }
.topic-button:last-child { border-right: 0; }
.topic-button b { display: block; font-size: 14px; line-height: 1.35; }
.topic-button.active, .topic-button:hover { background: var(--green); color: white; }
.topic-introduction { padding: 32px 0; display: grid; grid-template-columns: .55fr 1.45fr; gap: 8vw; border-bottom: 1px solid var(--line); }
.topic-introduction h3 { margin: 0; font: 500 clamp(27px, 3.2vw, 43px)/1.08 var(--serif); }
.topic-introduction p { max-width: 760px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.research-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 38px; }
.highlight-card { border: 1px solid var(--line); background: white; }
.highlight-media { padding: 12px; background: var(--soft); display: grid; place-items: center; }
.highlight-media.is-video { aspect-ratio: 16/10; overflow: hidden; }
.highlight-media img { width: 100%; height: auto; object-fit: contain; }
.highlight-media video { width: 100%; height: 100%; object-fit: contain; }
.highlight-copy { padding: 22px; }
.highlight-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 18px; }
.highlight-tag { padding: 5px 7px; background: var(--green-light); color: var(--green); font: 500 7px/1 var(--mono); text-transform: uppercase; }
.highlight-copy h3 { margin: 0 0 12px; font: 600 clamp(19px, 2vw, 28px)/1.18 var(--sans); letter-spacing: -.035em; }
.highlight-copy p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.highlight-actions { display: flex; gap: 18px; align-items: flex-start; flex-wrap: wrap; margin-top: 22px; }
.highlight-actions a, .highlight-actions summary { color: var(--green); cursor: pointer; font: 500 8px/1 var(--mono); text-transform: uppercase; letter-spacing: .05em; }
.highlight-actions a { border-bottom: 1px solid currentColor; padding-bottom: 3px; }
.highlight-details summary { list-style: none; border-bottom: 1px solid currentColor; padding-bottom: 3px; }
.highlight-details summary::-webkit-details-marker { display: none; }
.highlight-details[open] { flex-basis: 100%; margin-top: 8px; padding-top: 18px; border-top: 1px solid var(--line); }
.highlight-details[open] summary { display: inline-block; margin-bottom: 16px; }
.highlight-details p { font-size: 11px; line-height: 1.8; }
.text-button { display: block; margin: 32px auto 0; padding: 7px 0; border: 0; border-bottom: 1px solid var(--ink); background: transparent; cursor: pointer; font: 500 9px/1 var(--mono); text-transform: uppercase; }

.resources-section { background: white; }
.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.resource-card { display: flex; flex-direction: column; border: 1px solid var(--line); background: var(--paper); }
.resource-card.is-resource-hidden { display: none; }
.resource-media { height: 170px; padding: 9px; display: grid; place-items: center; overflow: hidden; background: white; border-bottom: 1px solid var(--line); }
.resource-media img { width: 100%; height: 100%; object-fit: contain; }
.resource-copy { padding: 19px; display: flex; flex-direction: column; flex: 1; }
.resource-meta { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 13px; }
.resource-meta span { padding: 5px 7px; background: var(--green-light); color: var(--green); font: 500 7px/1 var(--mono); text-transform: uppercase; }
.resource-copy h3 { margin: 0 0 10px; font-size: clamp(20px, 2.1vw, 28px); line-height: 1.1; letter-spacing: -.04em; }
.resource-copy p { margin: 0 0 10px; color: var(--muted); font-size: 11px; line-height: 1.65; }
.resource-copy .resource-size { color: var(--green); font: 500 8px/1.5 var(--mono); text-transform: uppercase; }
.resource-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: auto; padding-top: 16px; }
.resource-actions a { color: var(--green); border-bottom: 1px solid currentColor; padding-bottom: 3px; font: 500 8px/1 var(--mono); text-transform: uppercase; }

.news-section { background: var(--soft); }
.news-list { border-top: 1px solid var(--ink); }
.news-item { display: grid; grid-template-columns: 70px 1fr; gap: 28px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.news-item.is-news-hidden { display: none; }
.news-item time { color: var(--green); font: 500 11px/1 var(--mono); }
.news-item h3 { margin: 7px 0; max-width: 900px; font-size: clamp(17px, 1.7vw, 22px); line-height: 1.3; letter-spacing: -.025em; }
.news-item p:last-child { max-width: 760px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }

.people-section { background: white; }
.group-label { margin: 0; font: 500 9px/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.pi-card { margin-top: 20px; padding: 42px 0; display: grid; grid-template-columns: .55fr 1.45fr; gap: 7vw; align-items: center; border-top: 1px solid var(--ink); }
.pi-photo { aspect-ratio: 1; max-width: 430px; overflow: hidden; border-radius: 3px; }
.pi-photo img { width: 100%; height: 100%; object-fit: cover; }
.pi-profile h3 { margin: 14px 0 22px; font: 600 clamp(34px, 4.2vw, 58px)/1 var(--sans); letter-spacing: -.055em; }
.pi-profile > p { max-width: 800px; color: var(--muted); font-size: 12px; line-height: 1.8; }
.profile-facts { margin-top: 28px; }
.profile-facts div { display: grid; grid-template-columns: 100px 1fr; padding: 12px 0; border-top: 1px solid var(--line); }
.profile-facts dd { margin: 0; }
.email-reveal { border: 0; border-bottom: 1px solid currentColor; padding: 0 0 2px; background: transparent; cursor: pointer; color: inherit; font: inherit; }
.pi-more { max-width: 800px; margin-top: 25px; padding-top: 18px; border-top: 1px solid var(--line); }
.pi-more summary { display: inline-block; border-bottom: 1px solid currentColor; padding-bottom: 3px; color: var(--green); cursor: pointer; font: 500 8px/1 var(--mono); text-transform: uppercase; letter-spacing: .05em; }
.pi-more summary::-webkit-details-marker { display: none; }
.pi-more-content { margin-top: 22px; color: var(--muted); }
.pi-more-content p, .pi-more-content li { font-size: 11px; line-height: 1.8; }
.pi-more-content h4 { margin: 30px 0 12px; color: var(--ink); font-size: 18px; }
.pi-more-content ul { display: grid; gap: 13px; margin: 16px 0 24px; padding-left: 18px; }
.pi-more-content b { color: var(--ink); font-weight: 600; }
.member-group { margin-top: 54px; }
.member-group-heading { display: grid; grid-template-columns: 1fr auto auto; gap: 16px; align-items: baseline; padding: 17px 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); cursor: pointer; list-style: none; }
.member-group-heading::-webkit-details-marker { display: none; }
.member-group-heading::after { content: "+"; color: var(--green); font: 500 18px/1 var(--mono); }
.member-group[open] > .member-group-heading::after { content: "−"; }
.member-group-heading span { color: var(--muted); font: 500 8px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.member-group-heading .group-label { color: var(--ink); font-size: 10px; }
.member-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 18px; }
.member-card { min-height: 225px; display: grid; grid-template-columns: 155px minmax(0, 1fr); border: 1px solid var(--line); background: var(--paper); }
.member-photo { min-height: 225px; overflow: hidden; background: var(--soft); border-right: 1px solid var(--line); }
.member-photo img { width: 100%; height: 100%; object-fit: cover; }
.member-initials { display: grid; place-items: center; background: var(--green-light); color: var(--green); font: 500 30px/1 var(--serif); letter-spacing: -.03em; }
.member-profile { padding: 20px; }
.member-role { margin: 0 0 9px; color: var(--green); font: 500 8px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .07em; }
.member-profile h3 { margin: 0 0 10px; font-size: clamp(19px, 1.8vw, 25px); line-height: 1.1; letter-spacing: -.035em; }
.member-affiliation, .member-degree, .member-research { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; }
.member-degree { margin-top: 8px; color: var(--ink); }
.member-research { margin-top: 13px; padding-top: 12px; border-top: 1px solid var(--line); }
.member-research b { display: block; margin-bottom: 4px; color: var(--ink); font: 500 7px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.alumni-group { margin-top: 46px; }

.publications-section { background: var(--paper); }
.publications-heading { align-items: start; }
.publication-tools { display: grid; gap: 15px; }
.search-box { display: flex; align-items: center; border-bottom: 1px solid var(--ink); padding: 8px 0; font: 500 8px/1 var(--mono); text-transform: uppercase; }
.search-box input { width: 100%; border: 0; outline: 0; background: transparent; padding: 5px 12px; font: 400 11px/1 var(--sans); }
.year-filters { display: flex; flex-wrap: wrap; gap: 6px; }
.filter { border: 1px solid var(--line); border-radius: 3px; padding: 8px 10px; background: transparent; cursor: pointer; font: 500 8px/1 var(--mono); text-transform: uppercase; }
.filter.active, .filter:hover { background: var(--green); color: white; border-color: var(--green); }
.publication-count { color: var(--muted); font: 500 8px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.publication-list { border-top: 1px solid var(--ink); }
.publication-item { display: grid; grid-template-columns: 65px 1fr auto; gap: 25px; align-items: center; padding: 21px 0; border-bottom: 1px solid var(--line); }
.pub-year { color: var(--green); font: 500 10px/1 var(--mono); }
.publication-item h3 { margin: 0 0 7px; max-width: 1000px; font-size: clamp(15px, 1.6vw, 20px); line-height: 1.3; letter-spacing: -.02em; }
.publication-item p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; }
.pub-arrow { color: var(--blue); font-size: 18px; }
.publication-toggle { display: block; margin: 35px auto 0; }

footer { padding: 70px 8vw 30px; background: var(--green); color: white; }
footer p:not(.eyebrow) { margin: 13px 0; color: rgba(255,255,255,.7); font-size: 11px; }
.footer-email { margin-top: 8px; color: #b9ddc9; font: 500 9px/1.4 var(--mono); text-transform: uppercase; }
.footer-meta { margin-top: 55px; padding-top: 18px; display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.2); color: rgba(255,255,255,.55); font: 500 8px/1 var(--mono); text-transform: uppercase; }

@media (max-width: 900px) {
  nav { display: none; }
  .hero { min-height: auto; padding: 75px 5vw 65px; grid-template-columns: 1fr; }
  .hero h1 { font-size: clamp(46px, 12vw, 68px); }
  .section { padding: 68px 5vw; }
  .section-heading, .topic-introduction, .pi-card { grid-template-columns: 1fr; }
  .section-heading { gap: 18px; margin-bottom: 38px; }
  .topic-selector { grid-template-columns: 1fr 1fr; }
  .topic-button:nth-child(2) { border-right: 0; }
  .topic-button:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .research-highlights { grid-template-columns: 1fr; }
  .resource-grid { grid-template-columns: 1fr 1fr; }
  .news-item { grid-template-columns: 55px 1fr; gap: 18px; }
  .pi-photo { max-width: 350px; }
  .member-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .site-header { padding-inline: 4vw; }
  .brand b { max-width: 190px; }
  .hero-actions { display: grid; }
  .topic-selector { grid-template-columns: 1fr; }
  .topic-button { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .topic-button:last-child { border-bottom: 0; }
  .section-heading h2 { font-size: clamp(36px, 11vw, 48px); }
  .hero h1 { font-size: clamp(42px, 13vw, 58px); }
  .resource-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; }
  .profile-facts div { grid-template-columns: 1fr; gap: 7px; }
  .member-card { grid-template-columns: 115px minmax(0, 1fr); }
  .member-photo { min-height: 210px; }
  .publication-item { grid-template-columns: 42px 1fr auto; gap: 10px; }
  .publication-item p { display: none; }
  .footer-meta { display: grid; gap: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}