:root {
  --paper: #faf7f2;
  --paper-dark: #f3eee3;
  --ink: #1c1813;
  --body-text: #4c4437;
  --muted: #6d6455;
  --faint: #a3947c;
  --bronze: #8a5a2b;
  --rule: #e2dacb;
  --rule-light: #ece5d8;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Newsreader', Georgia, serif;
  font-size: 17px;
  line-height: 1.6;
}

.wrap { max-width: 920px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

a { color: var(--bronze); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(250, 247, 242, 0.93);
  backdrop-filter: blur(4px);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 8px 16px;
  padding-top: 22px; padding-bottom: 16px;
}
.brand { font-size: 18px; font-weight: 500; color: var(--ink); text-decoration: none; }
.nav nav a {
  font-family: 'Inter', sans-serif;
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
  margin-left: 26px;
}
.nav nav a:first-child { margin-left: 0; }
.nav nav a:hover { color: var(--bronze); }
.nav nav a.active { color: var(--ink); }

/* ---------- Hero (homepage) ---------- */
.hero {
  padding-top: 64px; padding-bottom: 40px;
  display: flex; gap: 56px; align-items: flex-start;
}
.hero-text { flex: 1; min-width: 0; }
.hero-photo { width: 180px; flex-shrink: 0; }
.hero-photo img {
  display: block; width: 100%; height: auto;
  border-radius: 2px;
}
.hero h1 { font-size: 44px; font-weight: 500; line-height: 1.08; letter-spacing: -0.015em; }
.role { font-size: 17px; font-style: italic; color: var(--bronze); margin-top: 14px; }
.bio { font-size: 17px; line-height: 1.7; color: var(--body-text); margin-top: 22px; max-width: 560px; }
.contact { margin-top: 20px; font-size: 17px; }
.contact .label {
  font-family: 'Inter', sans-serif;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin-right: 12px;
}
.contact a { color: var(--bronze); text-decoration: none; }
.contact a:hover { text-decoration: underline; }
.js-email { color: var(--bronze); }

.profile-links { margin-top: 28px; }
.profile-links a {
  font-family: 'Inter', sans-serif;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--bronze); text-decoration: none;
}
.profile-links a:hover { text-decoration: underline; }
.profile-links .sep { color: var(--faint); margin: 0 12px; }

/* ---------- About ---------- */
.about p {
  font-size: 17px; line-height: 1.75;
  color: var(--body-text);
  max-width: 640px; margin-top: 18px;
}
.about p:first-of-type { margin-top: 22px; }

/* ---------- Section labels & paper rows ---------- */
.section-label {
  font-family: 'Inter', sans-serif;
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--bronze);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 10px;
}
.paper { padding: 22px 0; border-bottom: 1px solid var(--rule-light); }
.paper:last-of-type { border-bottom: none; }
.paper h3 { font-size: 20px; font-weight: 500; line-height: 1.3; }
.paper h3 a { color: var(--ink); text-decoration: none; }
.paper h3 a:hover { color: var(--bronze); }
.meta {
  font-family: 'Inter', sans-serif;
  font-size: 13px; color: var(--muted); margin-top: 6px;
}
.paper-links { margin-top: 8px; }
.paper-links a {
  font-family: 'Inter', sans-serif;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--bronze); text-decoration: none; margin-right: 18px;
}
.paper-links a:hover { text-decoration: underline; }
.more-link {
  display: inline-block; margin-top: 10px;
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--bronze); text-decoration: none;
}
.more-link:hover { text-decoration: underline; }

/* ---------- Publications strip (homepage) ---------- */
.pubs-strip { background: var(--paper-dark); padding: 36px 0 40px; margin-top: 24px; }
.pub { font-size: 17px; line-height: 1.5; margin-top: 14px; }
.pub:first-of-type { margin-top: 18px; }
.pub a { color: var(--ink); text-decoration: none; }
.pub a:hover { color: var(--bronze); }
.pub-venue { font-family: 'Inter', sans-serif; font-size: 13px; color: var(--muted); }

/* ---------- Subpage headers ---------- */
.page-title { padding-top: 56px; padding-bottom: 8px; }
.page-title h1 { font-size: 34px; font-weight: 500; letter-spacing: -0.01em; }
main .wrap > .section-label { margin-top: 36px; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--rule); margin-top: 56px; padding: 28px 0 40px; }
footer p {
  font-family: 'Inter', sans-serif;
  font-size: 11px; line-height: 1.6; color: var(--muted); max-width: 640px;
}
footer a { color: var(--muted); }
.copyright { color: var(--muted); margin-top: 10px; }

/* ---------- CV embed ---------- */
.cv-actions { margin-top: 20px; display: flex; align-items: center; gap: 20px; }
.cv-button {
  font-family: 'Inter', sans-serif;
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--paper); background: var(--ink);
  text-decoration: none; padding: 11px 20px; border-radius: 6px;
}
.cv-button:hover { background: var(--bronze); }
.cv-download {
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--bronze); text-decoration: none;
}
.cv-download:hover { text-decoration: underline; }
.cv-frame { width: 100%; height: 78vh; border: 1px solid var(--rule); margin-top: 24px; background: #fff; }
/* Inline PDF preview is a desktop enhancement — mobile browsers render the
   embed as a blank box, so the buttons above carry the CV there. */
@media (max-width: 760px) { .cv-embed { display: none; } }

/* ---------- Expandable abstracts ---------- */
details.abs summary {
  list-style: none;
  cursor: pointer;
  display: block;
}
details.abs summary::-webkit-details-marker { display: none; }
details.abs summary:hover h3 { color: var(--bronze); }
.abs-hint {
  display: inline-block;
  margin-top: 7px;
  font-family: 'Inter', sans-serif;
  font-size: 10.5px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--bronze); white-space: nowrap;
}
.abs-hint::after { content: " ▾"; }
details.abs[open] .abs-hint::after { content: " ▴"; }
.abstract p {
  font-size: 15.5px; line-height: 1.65;
  color: var(--body-text);
  margin: 12px 0 4px; max-width: 640px;
}

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
  .hero {
    padding-top: 40px;
    flex-direction: column-reverse;
    gap: 24px;
  }
  .hero-photo { width: 132px; }
  .hero h1 { font-size: 34px; }
  .nav-inner { flex-direction: column; align-items: flex-start; }
  .nav nav a { margin-left: 0; margin-right: 20px; }
  .profile-links .sep { margin: 0 8px; }
}