:root {
  --bg: #fbfaf7;
  --paper: #ffffff;
  --ink: #1e293b;
  --muted: #64748b;
  --line: #e2e8f0;
  --accent: #8b1e2d;
  --accent-2: #b45309;
  --soft: #f8f1ec;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(251, 250, 247, 0.9);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
  color: var(--ink);
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.nav-links a { color: var(--ink); }
.nav-links a.active, .nav-links a:hover { color: var(--accent); text-decoration: none; }

main { max-width: var(--max); margin: 0 auto; padding: 54px 24px 72px; }
.hero {
  display: grid;
  grid-template-columns: 1.45fr 0.85fr;
  gap: 44px;
  align-items: center;
  padding: 42px 0 64px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  margin-bottom: 12px;
}

h1, h2, h3 { line-height: 1.18; margin: 0 0 16px; }
h1 { font-size: clamp(2.55rem, 7vw, 5.4rem); letter-spacing: -0.07em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.65rem); letter-spacing: -0.035em; margin-top: 26px; }
h3 { font-size: 1.22rem; letter-spacing: -0.01em; }

.lede { font-size: clamp(1.08rem, 2vw, 1.35rem); color: #334155; max-width: 740px; }
.muted { color: var(--muted); }

.hero-card {
  background: linear-gradient(145deg, #fff, var(--soft));
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 30px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.08);
}

.portrait-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 26px;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 30% 20%, #f6d6c4, transparent 30%), linear-gradient(135deg, #8b1e2d, #1e293b);
  color: white;
  font-size: clamp(4rem, 8vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.08em;
}

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 11px 18px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: #fff;
  font-weight: 700;
}
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn:hover { transform: translateY(-1px); text-decoration: none; }

.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 10px 36px rgba(15, 23, 42, 0.045);
}

.card.compact { padding: 20px; }
.label {
  display: inline-flex;
  color: var(--accent);
  background: var(--soft);
  border: 1px solid #f2d7cb;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 9px;
  margin-bottom: 12px;
}

.paper-title { font-size: 1.12rem; font-weight: 800; margin-bottom: 4px; }
.coauthor { font-size: 1rem; font-weight: 400; }
.journal { color: var(--muted); font-style: italic; margin-bottom: 12px; }
.paper-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; font-weight: 700; font-size: 0.92rem; }

.section { margin: 44px 0 64px; }
ul.clean { padding-left: 1.2rem; margin-top: 8px; }
ul.clean li { margin: 8px 0; }

.footer {
  border-top: 1px solid var(--line);
  padding: 34px 24px;
  color: var(--muted);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.page-title { padding: 24px 0 20px; border-bottom: 1px solid var(--line); margin-bottom: 36px; }

.pub-list { list-style: decimal; padding-left: 1.5rem; margin: 0; }

.teach-heading { font-size: 1.2rem; margin-bottom: 4px; }
.teach-list { list-style: none; padding: 0; margin: 0; }
.teach-item { padding: 16px 0; border-bottom: 1px solid var(--line); }
.teach-item:last-child { border-bottom: none; }
.teach-role { font-weight: 600; margin-bottom: 4px; }
.teach-meta { color: var(--muted); font-size: 0.95rem; }
.pub-item { padding: 28px 0; border-bottom: 1px solid var(--line); }
.pub-item:last-child { border-bottom: none; }
.pub-item .paper-title { font-size: 1.08rem; font-weight: 600; margin-bottom: 4px; }
.pub-item details { margin-top: 8px; }
.pub-item details summary { cursor: pointer; color: var(--ink); font-size: 1rem; }
.pub-item details p { margin-top: 10px; color: #334155; font-size: 0.95rem; }
.page-title h1 { font-size: clamp(2.3rem, 5vw, 4rem); }

.note {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 22px;
  padding: 22px;
}

@media (max-width: 820px) {
  .hero, .grid.two, .grid.three { grid-template-columns: 1fr; }
  .nav-wrap { align-items: flex-start; flex-direction: column; }
  main { padding-top: 30px; }
  .hero { padding-top: 20px; }
}