:root {
  --bg: #f7f7f3;
  --surface: #ffffff;
  --surface-alt: #eef1ec;
  --text: #18211c;
  --muted: #637068;
  --line: #d7ddd8;
  --accent: #205a43;
  --accent-dark: #174532;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "DM Sans", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
a { color: inherit; }
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.narrow { max-width: 860px; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  border-bottom: 1px solid rgba(215,221,216,.85);
  background: rgba(247,247,243,.92);
  backdrop-filter: blur(12px);
}
.nav-wrap { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font-family: "Source Serif 4", serif; font-size: 1.35rem; font-weight: 650; text-decoration: none; }
.nav { display: flex; gap: 24px; }
.nav a { text-decoration: none; color: var(--muted); font-size: .95rem; }
.nav a:hover { color: var(--accent); }
.nav-toggle { display: none; border: 1px solid var(--line); background: var(--surface); padding: 8px 12px; border-radius: 999px; }
.hero { padding: 96px 0 82px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(260px, .65fr); gap: 72px; align-items: center; }
.eyebrow,.section-kicker,.project-label { text-transform: uppercase; letter-spacing: .13em; font-weight: 700; font-size: .76rem; color: var(--accent); }
h1,h2,h3 { font-family: "Source Serif 4", serif; line-height: 1.12; margin-top: 0; }
h1 { font-size: clamp(3rem, 6vw, 5.7rem); max-width: 920px; margin-bottom: 26px; letter-spacing: -.035em; }
h2 { font-size: clamp(2.1rem, 4vw, 3.5rem); margin-bottom: 22px; letter-spacing: -.025em; }
h3 { font-size: 1.45rem; margin-bottom: 12px; }
.hero-copy,.lead { font-size: 1.18rem; color: var(--muted); max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 26px; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 12px 18px; border-radius: 999px; text-decoration: none; font-weight: 700; border: 1px solid var(--line); }
.button.primary { background: var(--accent); border-color: var(--accent); color: white; }
.button.primary:hover { background: var(--accent-dark); }
.button.secondary { background: transparent; }
.quick-links { display: flex; flex-wrap: wrap; gap: 18px; }
.quick-links a,.text-link,.pub-links a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 4px; }
.profile-card { border: 1px solid var(--line); background: var(--surface); padding: 18px; border-radius: 24px; box-shadow: 0 24px 70px rgba(24,33,28,.08); transform: rotate(1.2deg); }
.portrait-placeholder { aspect-ratio: 4/5; border-radius: 16px; background: linear-gradient(145deg,#dfe8e1,#cbd7cf); display: grid; place-items: center; text-align: center; color: var(--accent); font-family: "Source Serif 4",serif; font-size: 1.5rem; }
.profile-meta { display: grid; gap: 3px; padding: 15px 4px 2px; }
.profile-meta span { color: var(--muted); font-size: .92rem; }
.section { padding: 88px 0; border-top: 1px solid var(--line); }
.section-alt { background: var(--surface-alt); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 38px; }
.section-heading > p { max-width: 460px; color: var(--muted); }
.cards { display: grid; gap: 18px; }
.cards.three { grid-template-columns: repeat(3, 1fr); }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.card,.project-card { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 28px; }
.card-index { display: block; color: var(--muted); font-size: .82rem; margin-bottom: 44px; }
.card p,.project-card p { color: var(--muted); }
.tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 24px; }
.tags span { border: 1px solid var(--line); background: var(--bg); padding: 5px 10px; border-radius: 999px; font-size: .8rem; }
.pub-list { border-top: 1px solid var(--line); }
.publication { display: grid; grid-template-columns: 90px 1fr; gap: 28px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.pub-year { color: var(--muted); font-weight: 700; }
.publication h3 { margin-bottom: 8px; }
.authors,.venue { margin: 3px 0; color: var(--muted); }
.pub-links { display: flex; gap: 14px; margin-top: 12px; font-size: .9rem; }
.simple-list { border-top: 1px solid var(--line); }
.simple-list > div { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.simple-list span { color: var(--muted); }
.contact-section { background: #1f2c25; color: white; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.contact-section .section-kicker { color: #a9d1b9; }
.contact-copy p { color: #c9d4cd; max-width: 560px; }
.contact-section .button.primary { background: #e8f0eb; color: #1f2c25; border-color: #e8f0eb; }
.small { font-size: .86rem; }
.footer { padding: 26px 0; background: #17221b; color: #bac6be; border-top: 1px solid rgba(255,255,255,.08); }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; font-size: .9rem; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav { display: none; position: absolute; top: 72px; left: 20px; right: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 18px; flex-direction: column; box-shadow: 0 20px 50px rgba(0,0,0,.08); }
  .nav.open { display: flex; }
  .hero { padding-top: 62px; }
  .hero-grid,.contact-grid { grid-template-columns: 1fr; }
  .profile-card { max-width: 420px; transform: none; }
  .cards.three,.cards.two { grid-template-columns: 1fr; }
  .section-heading { align-items: start; flex-direction: column; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  h1 { font-size: clamp(2.65rem, 14vw, 4rem); }
  .hero { padding: 48px 0 58px; }
  .section { padding: 66px 0; }
  .publication { grid-template-columns: 1fr; gap: 4px; }
  .simple-list > div { grid-template-columns: 1fr; gap: 4px; }
  .footer-inner { flex-direction: column; }
}