:root {
  --bg: #fbfaf7;
  --paper: #ffffff;
  --ink: #20242a;
  --muted: #666f7a;
  --line: #e3e0d9;
  --accent: #2e6f73;
  --accent-soft: #edf6f4;
  --warm: #f6f1e8;
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 86% 0%, rgba(46,111,115,.08), transparent 30rem),
    linear-gradient(180deg, #fff 0%, var(--bg) 48%, #fff 100%);
  line-height: 1.65;
}

a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .18em; }

.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 28px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  letter-spacing: .01em;
  text-decoration: none;
  font-size: 20px;
}

nav { display: flex; gap: 28px; font-size: 15px; color: var(--muted); }
nav a { text-decoration: none; }
nav a:hover { color: var(--ink); }

main { max-width: var(--max); margin: 0 auto; padding: 0 28px; }

.hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 64px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-weight: 650;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: 14px;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(54px, 8vw, 84px);
  line-height: .98;
  font-weight: 500;
  letter-spacing: -.045em;
}

.lead {
  margin: 30px 0 0;
  max-width: 700px;
  font-size: clamp(21px, 2.3vw, 28px);
  line-height: 1.45;
  color: #30363d;
}

.links { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.links a {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.72);
  padding: 10px 15px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 15px;
}
.links a:hover { border-color: var(--accent); color: var(--accent); }

.portrait-wrap {
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 10px;
  background: var(--paper);
  box-shadow: 0 24px 70px rgba(31,38,46,.08);
}
.portrait-wrap img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 18px;
}

.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}
.two-column {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 62px;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 3.4vw, 42px);
  line-height: 1.15;
  font-weight: 720;
  letter-spacing: -.035em;
}

.content { font-size: 18px; }
.content p:first-child { margin-top: 0; }
.muted { color: var(--muted); margin-top: 14px; font-size: 16px; }

.soft-panel {
  margin-top: 56px;
  padding: 46px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: linear-gradient(135deg, var(--warm), var(--accent-soft));
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.research-grid div {
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(227,224,217,.8);
  border-radius: 18px;
  padding: 24px;
}
h3 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.35;
}
.research-grid p, .pub p { margin: 0; color: var(--muted); font-size: 15px; }

.publication-list { display: grid; gap: 12px; }
.pub {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.76);
}
.pub h3 { font-size: 18px; }
.scholar-link { margin: 22px 0 0; font-size: 16px; color: var(--accent); }
.contact a { color: var(--accent); }

footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 820px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  nav { gap: 16px; flex-wrap: wrap; }
  .hero, .two-column { grid-template-columns: 1fr; gap: 30px; }
  .hero { padding: 64px 0; min-height: auto; }
  .research-grid { grid-template-columns: 1fr; }
  .soft-panel { padding: 30px; }
}