:root {
  --ink: #201d19;
  --muted: #6b6259;
  --faint: #a39a8d;
  --link: #1d4ed8;
  --rule: #e9e2d6;
  --card: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #fdfcfa;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 780px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 2rem;
}

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

/* ---- header ---- */

.intro { overflow: hidden; margin-bottom: 2.5rem; }

.photo {
  float: right;
  width: 190px;
  border-radius: 12px;
  margin: 0 0 1rem 1.75rem;
  border: 1px solid var(--rule);
}

h1 {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 0.2rem;
}

.role { color: var(--muted); margin: 0 0 1rem; font-weight: 500; }

.links { display: flex; gap: 1.15rem; margin: 0 0 2rem; }
.links a { color: var(--muted); display: inline-flex; transition: color 0.15s; }
.links a:hover { color: var(--text); }
.links svg { width: 21px; height: 21px; display: block; }

/* ---- sections ---- */

section { margin-bottom: 2.5rem; }

h2 {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.45rem;
  margin: 0 0 1.25rem;
}

/* ---- footer ---- */

/* ---- research projects ---- */

.project {
  display: flex;
  gap: 1.35rem;
  align-items: flex-start;
  margin-bottom: 1.9rem;
}

.project img {
  width: 215px;
  height: 135px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--rule);
  background: var(--card);
  flex-shrink: 0;
}

.project h3 {
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.project p { margin: 0.25rem 0; font-size: 0.95rem; }
.project .papers { font-size: 0.88rem; color: var(--muted); }

/* ---- footer ---- */

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--faint);
  font-size: 0.85rem;
  line-height: 1.8;
}
.wink { font-style: italic; }

/* ---- small screens ---- */

@media (max-width: 600px) {
  main { padding-top: 2rem; }
  .photo {
    float: none;
    display: block;
    width: 170px;
    margin: 0 0 1.25rem;
  }
  h1 { font-size: 1.75rem; }
  .project { flex-direction: column; gap: 0.8rem; }
  .project img { width: 100%; height: 170px; }
}