@font-face {
  font-family: "Source Serif 4";
  src: url("fonts/source-serif-4.woff2") format("woff2-variations");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Source Serif 4";
  src: url("fonts/source-serif-4-italic.woff2") format("woff2-variations");
  font-weight: 200 900;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Hanken Grotesk";
  src: url("fonts/hanken-grotesk.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f7f8f9;
  --paper-deep: #eef0f2;
  --ink: #15202b;
  --ink-soft: #46525f;
  --ink-faint: #59646f;
  --rule: #d9dde2;
  --accent: #1d5566;
  --accent-deep: #133e4b;
  --accent-wash: #e3eef1;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --wrap: 1180px;
  --gutter: clamp(20px, 5vw, 48px);
  --header-h: 64px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
  scrollbar-color: #b9c0c7 var(--paper);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  font-feature-settings: "kern", "liga";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: #fff; }

img { display: block; max-width: 100%; height: auto; }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  transition: color 0.2s var(--ease), text-decoration-color 0.2s var(--ease);
}
a:hover { color: var(--accent-deep); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2 { font-family: var(--serif); font-weight: 500; color: var(--ink); margin: 0; }
p { margin: 0; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  padding: 8px 14px;
  background: var(--ink);
  color: #fff;
  z-index: 100;
  border-radius: 4px;
  text-decoration: none;
}
.skip:focus, .skip:hover { top: 12px; color: #fff; }

.anchor-alias { position: absolute; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 249, 0);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(247, 248, 249, 0.92);
  border-bottom-color: var(--rule);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  backdrop-filter: saturate(140%) blur(10px);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.wordmark {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark:hover { color: var(--ink); }
.site-header ul {
  display: flex;
  gap: clamp(16px, 2.4vw, 32px);
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}
.site-header nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 6px 0;
  position: relative;
}
.site-header nav a:hover,
.site-header nav a[aria-current] { color: var(--ink); }
.site-header nav a[aria-current]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
}
.site-header nav a.nav-cta {
  color: var(--accent);
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 6px 16px;
}
.site-header nav a.nav-cta:hover { background: var(--accent); color: #fff; }
.site-header nav a.nav-cta[aria-current]::after { display: none; }

/* Hero */
.hero { padding: clamp(32px, 6vh, 72px) 0 clamp(40px, 6vh, 72px); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}
.hero-copy { max-width: 46rem; }
.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  font-weight: 500;
  font-variation-settings: "opsz" 60;
  text-wrap: balance;
}
.role {
  margin-top: 20px;
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  font-weight: 500;
  color: var(--accent);
  line-height: 1.45;
}
.role span { display: block; }
.bio { margin-top: 24px; display: grid; gap: 14px; color: var(--ink-soft); max-width: 66ch; }
.bio p:first-child { color: var(--ink); font-size: 1.09375rem; line-height: 1.58; }
.actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
}
.button {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 26px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border-radius: 999px;
  box-shadow: 0 1px 2px rgba(19, 62, 75, 0.18), 0 6px 18px -6px rgba(19, 62, 75, 0.35);
  transition: background-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.button:hover { background: var(--accent-deep); color: #fff; transform: translateY(-1px); box-shadow: 0 2px 4px rgba(19, 62, 75, 0.2), 0 10px 24px -8px rgba(19, 62, 75, 0.45); }
.button:active { transform: translateY(0); }
.text-link { font-weight: 600; font-size: 1rem; }

.portrait { margin: 6px 0 0; position: relative; }
.portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 20%;
  background: var(--paper-deep);
  border-radius: 0;
}

/* Hero entrance */
@media (prefers-reduced-motion: no-preference) {
  .hero-copy > *, .portrait { animation: rise 0.9s var(--ease) both; }
  .hero-copy > :nth-child(2) { animation-delay: 0.06s; }
  .hero-copy > :nth-child(3) { animation-delay: 0.12s; }
  .hero-copy > :nth-child(4) { animation-delay: 0.18s; }
  .portrait { animation-name: settle; animation-duration: 1.1s; animation-delay: 0.08s; }
}
@keyframes rise { from { transform: translateY(14px); } }
@keyframes settle { from { transform: scale(1.02); } }

/* Orgs */
.orgs { border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); background: var(--paper-deep); }
.orgs-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 22px;
  padding-bottom: 24px;
}
.orgs-title {
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink-faint);
  white-space: nowrap;
  letter-spacing: 0;
}
.org-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
}
.org-list li {
  font-family: var(--serif);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}

/* Sections */
.section { padding: clamp(64px, 10vw, 112px) 0 0; }
.section + .contact { margin-top: clamp(72px, 10vw, 120px); }
.section h2, .contact h2 {
  font-size: clamp(1.875rem, 3vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2.6fr);
  gap: 24px clamp(32px, 6vw, 88px);
  align-items: start;
}
.two-col h2 { position: sticky; top: calc(var(--header-h) + 24px); }

.entries { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.entry {
  display: grid;
  grid-template-columns: 11.5rem minmax(0, 1fr);
  gap: 6px 32px;
  padding: 22px 0 24px;
  border-bottom: 1px solid var(--rule);
}
.entry-meta {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums lining-nums;
  padding-top: 0.2em;
}
.entry-title {
  font-family: var(--serif);
  font-size: 1.1875rem;
  line-height: 1.4;
  font-weight: 500;
  color: var(--ink);
  max-width: 62ch;
}
.authors { margin-top: 8px; font-size: 0.9375rem; color: var(--ink-soft); line-height: 1.55; max-width: 72ch; }
.authors strong { color: var(--ink); font-weight: 650; }
.venue { margin-top: 4px; font-size: 0.9375rem; font-family: var(--serif); font-style: italic; color: var(--ink-soft); }

.links .entry a {
  font-family: var(--serif);
  font-size: 1.1875rem;
  line-height: 1.4;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  max-width: 62ch;
}
.links .entry a:hover { color: var(--accent); text-decoration: underline; text-decoration-color: rgba(29, 85, 102, 0.45); }
.ext {
  width: 0.8em;
  height: 0.8em;
  margin-left: 0.3em;
  vertical-align: -0.02em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.55;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
a:hover .ext { transform: translate(2px, -2px); opacity: 1; }

/* Features */
.features h2 { margin-bottom: 36px; }
.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px clamp(24px, 3.5vw, 48px);
}
.feature a { display: block; text-decoration: none; color: var(--ink); }
.feature img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 0;
  background: var(--paper-deep);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
}
.feature a:hover img { transform: translateY(-3px); box-shadow: 0 18px 40px -22px rgba(21, 32, 43, 0.45); }
.feature-caption {
  display: block;
  margin-top: 18px;
  font-family: var(--serif);
  font-size: 1.1875rem;
  line-height: 1.4;
  font-weight: 500;
  max-width: 48ch;
}
.feature a:hover .feature-caption { color: var(--accent); }
.feature-source { display: block; margin-top: 6px; font-size: 0.875rem; font-weight: 600; color: var(--ink-faint); }

/* Contact */
.contact { background: var(--ink); color: #fff; padding: clamp(72px, 10vw, 120px) 0; }
.contact h2 { color: #fff; }
.contact-inner { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 24px 48px; }
.contact-email {
  font-family: var(--serif);
  font-size: clamp(1.375rem, 3.4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  color: #fff;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.35);
  text-underline-offset: 0.2em;
  overflow-wrap: anywhere;
}
.contact-email:hover { color: #fff; text-decoration-color: #fff; }
.contact :focus-visible { outline-color: #fff; }
.contact ::selection { background: #fff; color: var(--ink); }

/* Footer */
.site-footer { background: var(--ink); color: #aeb7c0; border-top: 1px solid rgba(255, 255, 255, 0.12); }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; padding-top: 24px; padding-bottom: 28px; font-size: 0.875rem; }
.site-footer a { color: #d5dbe0; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer :focus-visible { outline-color: #fff; }

/* Responsive */
@media (max-width: 960px) {
  .site-header { background: rgba(247, 248, 249, 0.96); }
  .header-inner { height: auto; flex-wrap: wrap; padding-top: 12px; padding-bottom: 0; row-gap: 4px; }
  .site-header nav { order: 3; flex-basis: 100%; margin: 0 calc(var(--gutter) * -1); overflow-x: auto; scrollbar-width: none; }
  .site-header nav::-webkit-scrollbar { display: none; }
  .site-header nav ul { padding: 4px var(--gutter) 10px; gap: 22px; white-space: nowrap; }
  .site-header nav li:last-child { position: absolute; top: 10px; right: var(--gutter); }
  .header-inner { position: relative; }
  html { scroll-padding-top: 116px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr); }
  .two-col { grid-template-columns: minmax(0, 1fr); }
  .two-col h2 { position: static; }
}
@media (max-width: 720px) {
  :root { --header-h: 56px; }
  body { font-size: 1rem; }
  .hero { padding-top: 24px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .portrait { order: -1; max-width: 180px; margin-top: 0; }
  .bio p:first-child { font-size: 1.0625rem; }
  .entry { grid-template-columns: minmax(0, 1fr); gap: 6px; padding: 20px 0 22px; }
  .feature-grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .org-list { gap: 6px 22px; }
  .org-list li { font-size: 1.0625rem; }
  .contact-inner { flex-direction: column; }
  .footer-inner { flex-direction: column; }
}