/* ---------- Design tokens (editorial / print) ---------- */
:root {
  --paper: #faf9f6;
  --ink: #1a1a1a;
  --ink-2: #595959;
  --ink-3: #8c8c8c;
  --accent: #8b2332;
  --hairline: #ddd9d0;
  --rule: #1a1a1a;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #161412;
    --ink: #e8e4dc;
    --ink-2: #b3ada3;
    --ink-3: #938d82;
    --accent: #cf8b96;
    --hairline: rgba(255, 255, 255, 0.14);
    --rule: #e8e4dc;
  }
}

/* ---------- Base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

main { max-width: var(--maxw); margin: 0 auto; padding: 56px 28px 0; }

/* ---------- Masthead ---------- */
.mast {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  padding-bottom: 26px;
  border-bottom: 2px solid var(--rule);
}
.mast__name {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  line-height: 1.15;
}
.mast__cn {
  font-size: 1.25rem;
  color: var(--ink-3);
  font-weight: 400;
  margin-left: 6px;
}
.mast__role {
  font-size: 0.75rem;
  color: var(--ink-2);
  letter-spacing: 1.6px;
  text-transform: uppercase;
  margin-top: 10px;
}
.mast__sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.92rem;
  color: var(--ink-2);
  margin-top: 8px;
}
.mast__links { margin-top: 14px; font-size: 0.88rem; }
.mast__links span { color: var(--ink-3); margin: 0 8px; }
.mast__photo {
  width: 108px;
  height: 108px;
  object-fit: cover;
  object-position: 70% center; /* favors the right side of the photo */
  flex: 0 0 auto;
  border: 1px solid var(--hairline);
  filter: grayscale(12%);
}

/* ---------- Sections ---------- */
.section { padding: 26px 0; border-bottom: 1px solid var(--hairline); }
.section:last-of-type { border-bottom: 0; }
.section__title {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 600;
  margin-bottom: 14px;
}
.section__note { font-size: 0.78rem; color: var(--ink-3); margin-bottom: 16px; }

.prose {
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.75;
  overflow-wrap: break-word;
}
.prose + .prose { margin-top: 10px; }
.prose strong { font-weight: 600; }

/* ---------- Research interests ---------- */
.interests { font-family: var(--serif); font-size: 1rem; line-height: 2; }
.interests span { white-space: nowrap; }
.interests .sep { color: var(--accent); margin: 0 10px; }

/* ---------- Publications ---------- */
.pubs { list-style: none; }
.pub { display: flex; gap: 20px; padding: 14px 0; }
.pub + .pub { border-top: 1px solid var(--hairline); }
.pub__year {
  font-size: 0.82rem;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  flex: 0 0 40px;
  padding-top: 4px;
}
.pub__body { flex: 1 1 auto; min-width: 0; }
.pub__title {
  font-family: var(--serif);
  font-size: 1.06rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink);
  display: inline-block;
  overflow-wrap: break-word;
}
.pub__title:hover { color: var(--accent); text-decoration: none; }
.pub__authors { font-size: 0.85rem; color: var(--ink-2); margin-top: 5px; }
.pub-author--me { color: var(--ink); border-bottom: 1.5px solid var(--ink); }
.pub-author--advisor { font-weight: 600; color: var(--ink); }
.pub-author--advisor::after {
  content: "★";
  color: var(--accent);
  font-size: 0.62em;
  vertical-align: super;
  margin-left: 1px;
}
.pub__venue {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--ink-2);
  margin-top: 3px;
}
.pub__meta {
  margin-top: 8px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.69rem;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.tag { border: 1px solid var(--hairline); color: var(--ink-2); padding: 1.5px 7px; }
.tag--first { border-color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); color: var(--accent); }
.pub__abs { margin-top: 8px; }
.pub__abs summary { color: var(--ink-3); cursor: pointer; font-size: 0.78rem; }
.pub__abs summary:hover { color: var(--accent); }
.pub__abs p {
  font-family: var(--serif);
  font-size: 0.85rem;
  color: var(--ink-2);
  line-height: 1.7;
  margin-top: 6px;
}
.pub__links { margin-top: 8px; font-size: 0.82rem; }
.pub__links a { margin-right: 14px; }

/* ---------- Contact ---------- */
.contact { list-style: none; font-size: 0.9rem; }
.contact li { padding: 3px 0; }
.contact__k {
  display: inline-block;
  width: 84px;
  color: var(--ink-3);
  font-size: 0.72rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

/* ---------- Footer ---------- */
.footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 22px 28px 48px;
  font-size: 0.75rem;
  color: var(--ink-3);
  text-align: center;
}

/* ---------- Responsive ---------- */
@media (max-width: 540px) {
  main { padding: 36px 20px 0; }
  .mast { gap: 16px; }
  .mast__name { font-size: 1.9rem; }
  .mast__photo { width: 84px; height: 84px; }
  .pub { flex-direction: column; gap: 2px; }
  .pub__year { flex-basis: auto; padding-top: 0; }
  .footer { padding: 18px 20px 40px; }
}