@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;600;700&family=Playfair+Display:wght@600;700&display=swap');

:root {
  --ink: #172a2a;
  --muted: #607070;
  --paper: #f7f8f5;
  --white: #fff;
  --mint: #dceee8;
  --mint-dark: #39766b;
  --coral: #db755d;
  --line: #d8e0dc;
  --serif: "Playfair Display", Georgia, serif;
  --sans: "DM Sans", Arial, sans-serif;
  --mono: "DM Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.6; }
img { display: block; max-width: 100%; }
a { color: inherit; }
.section, .nav-wrap, .footer-inner, .copyright { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
.section { padding-block: 112px; }
.section-border { border-top: 1px solid var(--line); }
.section-tint { width: 100%; padding-inline: max(24px, calc((100% - 1120px) / 2)); background: var(--mint); }
.eyebrow { margin: 0 0 18px; color: var(--mint-dark); font: 500 0.72rem/1.2 var(--mono); letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 600; line-height: 1.08; }
h1 { max-width: 680px; margin-bottom: 27px; font-size: clamp(2.3rem, 4.6vw, 4.1rem); letter-spacing: -.045em; }
h2 { margin-bottom: 20px; font-size: clamp(2rem, 3.8vw, 3.2rem); letter-spacing: -.035em; }
h3 { line-height: 1.2; }
p { color: var(--muted); }
.site-header { position: sticky; z-index: 10; top: 0; border-bottom: 1px solid rgba(216,224,220,.8); background: rgba(247,248,245,.9); backdrop-filter: blur(14px); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; }
.brand { display: inline-flex; width: 43px; color: var(--ink); text-decoration: none; }
.brand svg { width: 43px; height: auto; overflow: visible; }
.brand svg path:first-child { fill: var(--mint); stroke: var(--ink); stroke-width: 2.5; stroke-linejoin: round; }
.brand svg circle { fill: var(--ink); }
.brand svg path:last-child { fill: none; stroke: var(--coral); stroke-width: 2; stroke-linecap: round; }
nav { display: flex; gap: 28px; }
nav a, .text-link, .research-card a, .publication a, .press-links a { text-decoration: none; }
nav a { color: var(--muted); font-size: .9rem; }
nav a:hover, .text-link:hover, .research-card a:hover, .publication a:hover, .press-links a:hover { color: var(--coral); }
.hero { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); align-items: center; gap: 70px; min-height: 690px; padding-top: 86px; }
.lede { max-width: 610px; font-size: 1.2rem; line-height: 1.65; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 35px 0 30px; }
.button { display: inline-flex; align-items: center; gap: 14px; padding: 13px 19px; border: 1px solid var(--ink); font-weight: 600; text-decoration: none; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--ink); }
.button-primary:hover { background: var(--mint-dark); }
.button-secondary { background: transparent; }
.affiliation { font: .8rem var(--mono); }
.hero-image { position: relative; }
.hero-image img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.image-note { display: block; padding: 12px 0 0; color: var(--muted); font: .72rem var(--mono); }
.thumbnail { cursor: zoom-in; }
.section-heading { max-width: 700px; margin-bottom: 55px; }
.section-heading > p:last-child { font-size: 1.1rem; }
.research-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.research-card { min-height: 340px; padding: 28px; background: var(--paper); }
.card-number, .pub-year { color: var(--coral); font: .75rem var(--mono); }
.research-card h3 { margin: 38px 0 14px; font-size: 1.2rem; }
.research-card p { min-height: 115px; font-size: .95rem; }
.research-card a, .text-link { color: var(--mint-dark); font-size: .86rem; font-weight: 600; }
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.feature-reverse { background: var(--paper); }
.feature-volcano { grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); }
.feature-image img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.feature-volcano-image { display: block; width: min(100%, 480px); justify-self: center; overflow: visible; background: transparent; }
.feature-volcano-image img { width: 100%; height: auto; aspect-ratio: auto; object-fit: initial; }
.feature-reverse .feature-image img { object-fit: contain; }
.image-caption { margin: 13px 0 0; font: .72rem/1.5 var(--mono); }
.feature-copy p { max-width: 510px; font-size: 1.08rem; }
.feature-copy .text-link { display: inline-block; margin-top: 12px; }
.approach-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 52px; }
.approach-grid h3 { margin-bottom: 12px; font-size: 1.1rem; }
.approach-grid p { color: var(--ink); }
.future { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }
.future-copy h2 { max-width: 520px; font-size: clamp(1.85rem, 3.3vw, 2.85rem); }
.future-list p { margin-bottom: 0; padding: 0 0 20px 30px; border-bottom: 1px solid var(--line); }
.future-list p + p { padding-top: 20px; }
.future-list p::before { content: "↗"; margin-left: -30px; margin-right: 14px; color: var(--coral); }
.publications-heading { display: flex; align-items: end; justify-content: space-between; max-width: none; }
.publication-list { border-top: 1px solid var(--line); }
.publication { display: grid; grid-template-columns: 100px 1fr; gap: 28px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.publication h3 { max-width: 760px; margin: 7px 0 7px; font: 600 1.15rem/1.25 var(--sans); }
.publication p { margin: 0; font-size: .85rem; }
.publication p a { color: var(--mint-dark); font-weight: 600; }
.pub-status { display: inline-block; padding: 3px 7px; font: .62rem var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.pub-status.published { color: var(--mint-dark); background: var(--mint); }
.pub-status.preprint { color: #9b503f; background: #f5e0d9; }
.pub-status.in-press { color: #6c5b31; background: #eee5c8; }
.press { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.press-links { display: grid; gap: 18px; }
.press-links a { display: flex; justify-content: space-between; padding-bottom: 14px; border-bottom: 1px solid var(--line); font-weight: 600; }
footer { padding: 85px 0 30px; color: var(--white); background: var(--ink); }
footer .eyebrow, footer p { color: #a9c1ba; }
.footer-inner { display: flex; justify-content: space-between; gap: 50px; }
footer h2 { max-width: 520px; margin-bottom: 0; }
.footer-contact { display: grid; align-content: center; gap: 10px; text-align: right; }
.footer-contact a { color: var(--white); text-decoration: none; }
.footer-contact a:first-child { color: #bce0d6; }
.copyright { margin-top: 75px; padding-top: 20px; border-top: 1px solid #36504b; color: #78908a; font: .7rem var(--mono); }
.lightbox { position: fixed; z-index: 30; inset: 0; display: grid; place-items: center; padding: 35px; background: rgba(8, 18, 18, .94); }
.lightbox[hidden] { display: none; }
.lightbox img { max-height: 90vh; max-width: min(1100px, 94vw); object-fit: contain; }
.lightbox-close { position: absolute; top: 18px; right: 25px; border: 0; color: var(--white); background: none; font-size: 2.3rem; cursor: pointer; }

@media (max-width: 850px) {
  .section { padding-block: 78px; }
  .hero { grid-template-columns: 1fr; gap: 40px; min-height: auto; padding-top: 70px; }
  .hero-image { max-width: 520px; }
  .research-grid { grid-template-columns: repeat(2, 1fr); }
  .feature, .future, .press { gap: 45px; }
}
@media (max-width: 620px) {
  .section, .nav-wrap, .footer-inner, .copyright { width: min(100% - 32px, 1120px); }
  .section-tint { padding-inline: 16px; }
  nav { gap: 13px; }
  nav a { font-size: .72rem; }
  .brand, .brand svg { width: 38px; }
  h1 { font-size: 2.75rem; }
  .research-grid, .feature, .approach-grid, .future, .press { grid-template-columns: 1fr; }
  .research-card { min-height: auto; }
  .research-card p { min-height: auto; }
  .publications-heading, .footer-inner { display: block; }
  .publications-heading .text-link { display: inline-block; margin-top: 10px; }
  .publication { grid-template-columns: 1fr; gap: 8px; }
  .footer-contact { margin-top: 35px; text-align: left; }
  .copyright { margin-top: 55px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}