:root {
  --bg: #fbfaf7;
  --text: #1d1f23;
  --muted: #5f6570;
  --rule: #e4e1d9;
  --accent: #9b2c2c;
  --tag-bg: #f0ede5;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --text: #e6e4df;
    --muted: #9aa0aa;
    --rule: #2a2d33;
    --accent: #e08f8f;
    --tag-bg: #22252a;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.5rem;
}
.brand {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
nav { display: flex; gap: 1.25rem; }
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}
nav a:hover { color: var(--text); }

/* Intro */
.intro {
  display: flex;
  flex-direction: row-reverse;
  align-items: flex-start;
  gap: 2.5rem;
  padding: 4rem 0 3rem;
}
.intro-text { flex: 1; min-width: 0; }
.portrait {
  flex: none;
  width: 11rem;
  height: auto;
  aspect-ratio: 560 / 599;
  object-fit: cover;
  border-radius: 6px;
  margin-top: 0.4rem;
}
h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}
.role { color: var(--muted); margin: 0 0 1.5rem; }
.intro p { max-width: 38rem; }

.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 1.5rem 0;
}
.tags li {
  background: var(--tag-bg);
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.links { display: flex; flex-wrap: wrap; gap: 1.25rem; margin: 0; font-weight: 500; }

/* Publications */
#publications { border-top: 1px solid var(--rule); padding: 3rem 0 2rem; }
h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.6rem;
  margin: 0 0 1.5rem;
}
h3 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 2.5rem 0 1rem;
  font-variant-numeric: tabular-nums;
}
h2 + h3 { margin-top: 0; }

.pubs { list-style: none; padding: 0; margin: 0; }
.pubs li { padding: 1rem 0; border-top: 1px solid var(--rule); }
.pubs p { margin: 0; }
.title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.08rem;
  line-height: 1.4;
}
.authors { color: var(--muted); font-size: 0.92rem; margin-top: 0.35rem !important; }
.authors strong { color: var(--text); font-weight: 600; }
.venue { font-size: 0.92rem; margin-top: 0.2rem !important; }
.pub-links { display: flex; gap: 1rem; font-size: 0.85rem; font-weight: 500; margin-top: 0.4rem !important; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--rule);
  margin-top: 2rem;
  padding-top: 1.5rem;
  padding-bottom: 3rem;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 40rem) {
  .intro { flex-direction: column; gap: 1.5rem; padding: 2.5rem 0 2rem; }
  .portrait { width: 8.5rem; margin-top: 0; }
}

@media (max-width: 30rem) {
  nav { gap: 0.9rem; }
  nav .ext { display: none; }
}

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