:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --soft: #f6f8fb;
  --text: #172033;
  --muted: #5e6b7e;
  --line: #e6ebf2;
  --accent: #2563eb;
  --accent-soft: #eff6ff;
  --max: 1120px;
  --shadow: 0 20px 55px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(92%, var(--max)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--accent); color: white; font-weight: 800; letter-spacing: -.04em; }
.nav-links { display: flex; gap: 1.4rem; color: var(--muted); font-weight: 700; }
.nav-links a:hover, .footer-links a:hover { color: var(--accent); }
.nav-toggle { display: none; border: 0; background: none; font-size: 1.6rem; color: var(--text); }
.hero { display: grid; grid-template-columns: 1.2fr .75fr; gap: 4rem; align-items: center; padding: 5rem 0 2.5rem; }
.eyebrow { margin: 0 0 .8rem; color: var(--accent); text-transform: uppercase; letter-spacing: .13em; font-size: .78rem; font-weight: 800; }
h1 { margin: 0 0 1rem; font-size: clamp(3rem, 7vw, 5.4rem); line-height: .95; letter-spacing: -.07em; color: #0f172a; }
h2 { margin: 0; font-size: clamp(1.75rem, 3vw, 2.5rem); line-height: 1.15; letter-spacing: -.045em; color: #0f172a; }
h3 { margin: 0 0 .45rem; line-height: 1.28; color: #0f172a; }
.lead { max-width: 720px; margin: 0 0 1rem; font-size: clamp(1.25rem, 2.4vw, 1.75rem); line-height: 1.3; font-weight: 650; color: #283548; }
.statement, .card p, .publication h3, .timeline p, .footer p, .portrait-card p, .fellowship p { color: var(--muted); }
.statement { max-width: 690px; margin: 0; }
.actions { margin-top: 1.7rem; display: flex; flex-wrap: wrap; gap: .8rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 1rem; border: 1px solid var(--line); border-radius: 999px; font-weight: 800; color: #1f2a3d; background: white; }
.button.primary { background: var(--accent); color: white; border-color: var(--accent); }
.portrait-card { background: var(--surface); border: 1px solid var(--line); border-radius: 28px; padding: 1rem; box-shadow: var(--shadow); }
.portrait-card img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: center top; border-radius: 22px; background: var(--soft); }
.portrait-card div { padding: 1.1rem .25rem .25rem; }
.portrait-card h2 { font-size: 1.35rem; margin-bottom: .35rem; }
.highlights { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; padding: 1.2rem 0 3rem; }
.highlights div { padding: 1.25rem; background: var(--soft); border: 1px solid var(--line); border-radius: 18px; }
.highlights strong { display: block; font-size: 1.6rem; line-height: 1; color: var(--accent); }
.highlights span { display: block; margin-top: .55rem; color: var(--muted); font-weight: 600; }
.section { padding: 4rem 0; border-top: 1px solid var(--line); }
.section-heading { max-width: 760px; margin-bottom: 1.8rem; }
.section-heading.row { display: flex; align-items: end; justify-content: space-between; gap: 1rem; max-width: none; }
.grid { display: grid; gap: 1rem; }
.three { grid-template-columns: repeat(3, 1fr); }
.two { grid-template-columns: repeat(2, 1fr); }
.card, .publication, .timeline article, .fellowship { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 12px 36px rgba(15, 23, 42, 0.04); }
.card { padding: 1.35rem; }
.publication-list, .timeline { display: grid; gap: .85rem; }
.publication { padding: 1.1rem 1.25rem; }
.publication span, .timeline span { display: inline-block; margin-bottom: .35rem; color: var(--accent); font-weight: 800; font-size: .88rem; }
.publication h3 { font-size: 1rem; font-weight: 650; }
.timeline article { padding: 1.25rem; border-left: 4px solid var(--accent); }
.fellowship { padding: 2rem; background: linear-gradient(180deg, #ffffff, var(--accent-soft)); }
.footer { margin-top: 2rem; padding: 3rem 0 1.2rem; background: var(--soft); border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1fr .7fr; gap: 2rem; }
.footer-links { display: grid; gap: .65rem; color: var(--accent); font-weight: 800; }
.copyright { text-align: center; margin: 2.5rem 0 0; color: var(--muted); font-size: .9rem; }
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 72px; left: 4%; right: 4%; padding: 1rem; background: white; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); flex-direction: column; }
  .nav-links.open { display: flex; }
  .hero, .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero { padding-top: 3rem; }
  .highlights, .three, .two { grid-template-columns: 1fr; }
}