:root {
  --ink: #172019;
  --muted: #5d675f;
  --paper: #f5f5f3;
  --white: #ffffff;
  --line: #deded9;
  --green: #315f78;
  --green-dark: #24485c;
  --sage: #edf2f4;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "DM Sans", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { color: var(--green); }
.shell { width: min(980px, calc(100% - 48px)); margin-inline: auto; }
.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  background: var(--ink);
  color: white;
  padding: 10px 16px;
  z-index: 20;
}
.skip-link:focus { top: 16px; }

.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.nav { min-height: 64px; display: flex; align-items: center; justify-content: space-between; }
.wordmark { font-family: var(--sans); font-size: 1rem; font-weight: 600; text-decoration: none; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { color: var(--muted); font-size: .92rem; font-weight: 500; text-decoration: none; }
.nav-links a:hover { color: var(--ink); }

.hero {
  padding-block: 72px 80px;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}
.eyebrow, .section-kicker, .card-label {
  margin: 0 0 12px;
  color: var(--green);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
}
h1, h2, h3 { font-family: var(--serif); line-height: 1.12; }
h1 { margin: 0; font-size: clamp(2.7rem, 6vw, 4.4rem); letter-spacing: -.035em; }
h2 { margin: 0; font-size: clamp(1.8rem, 3.2vw, 2.7rem); letter-spacing: -.02em; }
h3 { margin: 8px 0 10px; font-size: clamp(1.25rem, 2vw, 1.6rem); letter-spacing: -.008em; }
.hero-affiliation { margin: 5px 0 22px; font-family: var(--serif); font-size: 1.35rem; }
.hero-intro { max-width: 640px; margin: 0; color: var(--muted); font-size: 1.04rem; }
.hero-actions { display: flex; gap: 16px; margin-top: 25px; flex-wrap: wrap; }
.button {
  display: inline-flex;
  min-height: auto;
  padding: 0;
  align-items: center;
  justify-content: center;
  border: 0;
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: .22em;
}
.button-primary { background: transparent; color: var(--green); }
.button-primary:hover { background: transparent; color: var(--green-dark); }
.button-secondary { color: var(--green); }
.button-secondary:hover { background: transparent; }

.portrait {
  margin: 0;
  overflow: hidden;
  background: var(--paper);
}
.portrait img {
  display: block;
  width: 100%;
  height: auto;
}
.current-roles { margin: 28px 0 0; color: var(--muted); font-size: .92rem; }

.section { padding-block: 72px; scroll-margin-top: 64px; border-top: 1px solid var(--line); }
.section-muted { background: var(--white); }
.two-column { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 96px; }
.body-copy { color: var(--muted); font-size: 1.08rem; }
.body-copy p:first-child { margin-top: 0; }
.personal-note {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: .96rem;
}
.personal-note strong { color: var(--ink); }
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.section-heading > p { margin: 0; color: var(--muted); text-align: right; }

.paper { padding: 30px 0; border-bottom: 1px solid var(--line); }
.paper-featured { margin: 0; padding: 30px 0; background: transparent; border: 0; border-bottom: 1px solid var(--line); }
.paper-meta { display: flex; gap: 12px; align-items: center; color: var(--green); font-size: .75rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.paper-meta .status { padding-left: 12px; border-left: 1px solid var(--line); color: var(--muted); }
.paper p { max-width: 900px; color: var(--muted); }
.paper .coauthors { margin-top: -6px; color: var(--ink); font-size: .92rem; }
.paper-link { display: inline-block; margin-top: 4px; color: var(--green); font-weight: 600; }

.section-accent { background: var(--white); color: var(--ink); }
.section-accent .section-kicker { color: var(--green); }
.cv-panel { display: flex; align-items: end; justify-content: space-between; gap: 64px; }
.cv-panel p { margin-bottom: 0; color: var(--muted); }
.cv-actions { min-width: 165px; display: grid; gap: 14px; }
.button-light { background: transparent; color: var(--green); }
.button-light:hover { background: transparent; color: var(--green-dark); }
.text-link-light { color: var(--green); font-weight: 500; text-align: left; }
.text-link-light:hover { color: var(--green-dark); }

.contact-grid { align-items: start; }
.contact-details { padding-top: 8px; }
.email { color: var(--green); font-family: var(--serif); font-size: clamp(1.3rem, 2.8vw, 2rem); font-weight: 600; }
.contact-email-list p { margin: 0 0 18px; }
.contact-email-list span { display: block; color: var(--muted); font-size: .78rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.email-secondary { color: var(--green); font-size: 1rem; font-weight: 500; }
.contact-details p { margin-top: 28px; color: var(--muted); }
.contact-details .contact-email-list p { margin-top: 0; }
.contact-details .profile-links { margin-top: 0; }
.profile-links { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.profile-links a { display: inline-flex; align-items: center; gap: 8px; color: var(--green); font-weight: 500; }

footer { padding-block: 28px; background: var(--paper); border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; color: var(--muted); font-size: .88rem; }
.footer-inner p { margin: 0; }

@media (max-width: 820px) {
  .shell { width: min(100% - 32px, 680px); }
  .nav-links { gap: 18px; }
  .nav-links a:nth-child(1) { display: none; }
  .hero { padding-block: 56px 64px; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; }
  .two-column { grid-template-columns: 1fr; gap: 32px; }
  .section { padding-block: 72px; }
  .section-heading, .cv-panel { align-items: start; flex-direction: column; }
  .section-heading > p { text-align: left; }
  .cv-actions { width: 100%; }
  .paper-featured { padding: 28px; }
}

@media (max-width: 520px) {
  .nav { min-height: 64px; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: .84rem; }
  .hero { padding-top: 56px; }
  .hero { grid-template-columns: 1fr; gap: 32px; }
  .portrait { width: min(76vw, 300px); }
  .paper-meta { align-items: flex-start; flex-direction: column; gap: 5px; }
  .paper-meta .status { padding-left: 0; border-left: 0; }
  .footer-inner { gap: 12px; flex-direction: column; }
}

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