:root {
  --paper: #fcfcfa;
  --ink: #1c2128;
  --muted: #5d6673;
  --line: #dfe2e6;
  --accent: #1f4e79;
  --accent-soft: #eef3f8;
  --plate: #ffffff;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Noto Serif CJK SC", "Songti SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans", "Noto Sans CJK SC", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15181d;
    --ink: #e6e8eb;
    --muted: #a0a8b3;
    --line: #333a44;
    --accent: #8db8e0;
    --accent-soft: #1f2a36;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 76px; }
body {
  margin: 0 auto;
  max-width: 1040px;
  padding: 0 24px;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
img { max-width: 100%; height: auto; display: block; }
p { margin: 0 0 .8em; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.25; }
h1 { font-size: 2.3rem; margin: 0 0 .15em; }
h2 { font-size: 1.4rem; margin: 0; }
h3 { font-size: 1.05rem; margin: 0; }

/* Page modules: a strong top rule, the title in a left rail, the content on the right. */
main > section {
  display: grid; grid-template-columns: 168px minmax(0, 1fr); column-gap: 40px;
  padding: 22px 0 64px; border-top: 2px solid var(--ink);
}
main > section > * { grid-column: 2; }
main > section > h2, main > section > .section-head {
  grid-column: 1; grid-row: 1 / span 12; align-self: start; position: sticky; top: 76px;
}
.muted { color: var(--muted); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 8px; top: 8px; background: var(--paper); padding: 4px 8px; }

/* Masthead */
.masthead {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline;
  gap: 4px 24px; padding: 16px 0 10px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10; background: var(--paper);
  /* Extend the background to the viewport edges without causing horizontal scroll. */
  box-shadow: 0 0 0 100vmax var(--paper); clip-path: inset(0 -100vmax);
}
.wordmark { font: 600 1.15rem var(--serif); color: var(--ink); }
.wordmark:hover { text-decoration: none; }
.wordmark span { color: var(--muted); font-weight: 400; margin-left: 4px; }
.masthead nav { display: flex; flex-wrap: wrap; gap: 4px 20px; }
.masthead nav a { color: var(--muted); font-size: .95rem; padding: 2px 0; border-bottom: 2px solid transparent; }
.masthead nav a:hover { color: var(--ink); text-decoration: none; }
.masthead nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

/* Home */
main > section.hero {
  grid-template-columns: minmax(0, 1fr) 200px; gap: 40px; align-items: start;
  padding: 44px 0 56px; border-top: 0;
}
.hero > * { grid-column: auto; }
.hero h1 span { color: var(--muted); font-weight: 400; font-size: .72em; margin-left: 6px; }
.position { color: var(--muted); margin-bottom: 1.1em; }
.portrait img { width: 200px; height: 200px; object-fit: cover; border-radius: 50%; }
.hero-links { margin-top: 1.2em; }

.section-head { display: flex; flex-direction: column; gap: 6px; }
.section-head a { font-size: .9rem; }
.section-head .stage { margin: 0; }

.news { list-style: none; margin: 0; padding: 0; }
.news li { display: grid; grid-template-columns: 76px 1fr; gap: 12px; padding: 3px 0; }
.news li:first-child { padding-top: 0; }
.news time { color: var(--muted); font-variant-numeric: tabular-nums; }

.themes { list-style: none; margin: 0; padding: 0; }
.themes li { display: grid; grid-template-columns: 44px 1fr; gap: 8px; padding: 12px 0; }
.themes li:first-child { padding-top: 0; }
.themes li + li { border-top: 1px solid var(--line); }
.themes p { margin: 0; }
.themes .num, .theme .num { font: 600 1.15rem var(--serif); color: var(--accent); }
.stage { color: var(--muted); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }

/* Page header */
.page-head { padding: 44px 0 36px; }
.page-head p:last-child { margin-bottom: 0; }
.lede { font-size: 1.08rem; }
.arc { display: flex; flex-wrap: wrap; gap: 4px 10px; color: var(--muted); font-size: .95rem; margin-top: 1rem; }

/* Research */
.theme .stage .num { font-size: .95rem; margin-right: 4px; }
.tagline { margin-bottom: .3em; }
.keywords { color: var(--muted); font-size: .92rem; margin-bottom: 1.1rem; }
.more { font-size: .92rem; margin-top: 1rem; }

/* Entries: shared by publications and projects */
.entry {
  display: grid; grid-template-columns: 184px minmax(0, 1fr); gap: 4px 22px;
  padding: 18px 0;
}
.entry:first-child { padding-top: 0; }
.entry + .entry { border-top: 1px solid var(--line); }
.entry.is-selected .venue::after { content: " · Selected"; color: var(--accent); }
.entry[hidden] { display: none; }
.entry-body.is-wide { grid-column: 1 / -1; }
.entry-title { font-size: 1.04rem; }
.authors, .venue, .summary { margin: .22em 0 0; font-size: .92rem; }
.authors { color: var(--muted); }
.authors strong { color: var(--ink); font-weight: 600; }
.summary { margin-top: .4em; }

.thumb {
  display: flex; align-items: center; justify-content: center;
  width: 184px; height: 124px; padding: 6px; margin: 0;
  background: var(--plate); border: 1px solid var(--line); border-radius: 4px;
  cursor: zoom-in; overflow: hidden;
}
.thumb:hover { border-color: var(--accent); }
.thumb img { width: 100%; height: 100%; object-fit: contain; }
.thumb-empty { background: transparent; cursor: default; color: var(--muted); font-size: .8rem; }
.thumb-empty:hover { border-color: var(--line); }

.links { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 14px; margin: .5em 0 0; font-size: .9rem; }
.expand {
  font: inherit; color: var(--accent); background: none; cursor: pointer;
  border: 1px solid var(--line); border-radius: 4px; padding: 0 8px; line-height: 1.6;
}
.expand:hover { border-color: var(--accent); }
.expand::after { content: " ▾"; }
.expand[aria-expanded="true"]::after { content: " ▴"; }

.panel { grid-column: 1 / -1; padding: 14px 0 4px; font-size: .95rem; }
.js .panel:not(.open) { display: none; }
.no-js .expand { display: none; }
.plate { margin: 0 0 16px; padding: 12px; background: var(--plate); border: 1px solid var(--line); border-radius: 4px; }
.plate img { margin: 0 auto; max-height: 460px; width: auto; }
.notes { margin: 0; display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 8px 16px; }
.notes dt { color: var(--muted); font-size: .88rem; padding-top: 1px; }
.notes dd { margin: 0; }
.audio { margin-top: 14px; }
.audio h4 { margin: 0 0 6px; font: inherit; color: var(--muted); font-size: .88rem; }
.audio-row { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 12px; align-items: center; margin-bottom: 6px; }
.audio audio { width: 100%; height: 34px; }
.abstract { margin-top: 12px; }
.abstract summary { cursor: pointer; color: var(--muted); font-size: .88rem; }
.abstract p { margin: 6px 0 0; }
.citation { margin: 12px 0 0; color: var(--muted); font-size: .85rem; }

/* Publications archive */
.filters { margin-bottom: 1.6rem; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button {
  font: inherit; font-size: .9rem; color: var(--ink); background: none; cursor: pointer;
  border: 1px solid var(--line); border-radius: 999px; padding: 2px 12px;
}
.chips button:hover { border-color: var(--accent); }
.chips button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.filter-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; margin-top: 10px; font-size: .92rem; }
.filter-row label { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; }
.filter-row input[type="search"] {
  flex: 1 1 220px; min-width: 0; font: inherit; color: var(--ink); background: var(--paper);
  border: 1px solid var(--line); border-radius: 4px; padding: 3px 8px;
}
.filter-status { display: flex; justify-content: space-between; margin: 10px 0 0; color: var(--muted); font-size: .9rem; }
.textbtn { font: inherit; color: var(--accent); background: none; border: 0; padding: 0; cursor: pointer; }
#archive { padding-bottom: 48px; }
.year { position: relative; min-height: 76px; padding: 22px 0 0 208px; border-top: 2px solid var(--ink); }
.year > summary {
  position: absolute; left: 0; top: 18px; width: 168px;
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 0 8px; cursor: pointer; list-style: none;
}
.year > summary::-webkit-details-marker { display: none; }
.year > summary::before { content: "▸"; color: var(--muted); font-size: 1.1rem; width: 14px; }
.year[open] > summary::before { content: "▾"; }
.year-label { font: 600 1.35rem var(--serif); }
.year-count { color: var(--muted); font-size: .9rem; }
.year .entries { padding-bottom: 40px; }
.empty { color: var(--muted); padding: 24px 0; }

/* Profile */
.timeline { margin: 0; display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 12px 20px; }
.timeline dt { color: var(--muted); font-size: .92rem; font-variant-numeric: tabular-nums; padding-top: 1px; }
.timeline dd { margin: 0; }

.colophon {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 20px;
  padding: 16px 0 28px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: .85rem;
}

@media (max-width: 820px) {
  main > section { grid-template-columns: minmax(0, 1fr); padding: 18px 0 44px; }
  main > section > * { grid-column: 1; }
  main > section > h2, main > section > .section-head { grid-row: auto; position: static; margin-bottom: 16px; }
  .year { padding: 58px 0 0; min-height: 0; }
  .year > summary { width: 100%; }
}
@media (max-width: 640px) {
  body { padding: 0 16px; }
  html { scroll-padding-top: 92px; }
  .masthead { padding: 10px 0 6px; }
  .page-head { padding: 32px 0 28px; }
  .masthead nav { flex-wrap: nowrap; justify-content: space-between; width: 100%; gap: 10px; }
  .masthead nav a { font-size: .88rem; }
  h1 { font-size: 1.9rem; }
  main > section.hero { grid-template-columns: minmax(0, 1fr); gap: 20px; padding: 28px 0 40px; }
  .portrait { order: -1; }
  .portrait img { width: 128px; height: 128px; }
  .entry { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .thumb { width: 100%; height: 170px; }
  .thumb-empty { display: none; }
  .entry:has(.panel.open) .thumb { display: none; }
  .notes { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .notes dd { margin-bottom: 10px; }
  .timeline { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .timeline dd { margin-bottom: 14px; }
  .audio-row { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}
@media (max-width: 350px) {
  .masthead nav { gap: 6px; }
  .masthead nav a { font-size: .8rem; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}