:root {
  --paper: #ffffff;
  --surface: #ffffff;
  --ink: #172033;
  --muted: #64748b;
  --accent: #6d28d9;
  --accent-dark: #5b21b6;
  --accent-soft: #f5f3ff;
  --accent-line: #ddd6fe;
  --rule: #dbe3ee;
  --frame-line: #d4dae2;
  --content-width: 1080px;
  --profile-width: 220px;
  --gutter: 68px;
}

* { box-sizing: border-box; }

html { scroll-padding-top: 28px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: #ede9fe; }

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

a:hover { color: var(--accent-dark); }

a:focus-visible,
summary:focus-visible {
  border-radius: 3px;
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

img,
svg { display: block; }

p,
h1,
h2,
h3,
h4 { margin-top: 0; }

.svg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 10px;
  left: 10px;
  padding: 8px 12px;
  transform: translateY(-150%);
  background: var(--ink);
  color: #fff;
}

.skip-link:focus { transform: translateY(0); }

.site-header,
.page-shell {
  width: min(calc(100% - 48px), var(--content-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: var(--profile-width) minmax(0, 1fr);
  gap: var(--gutter);
  /* Opaque so content scrolls underneath rather than showing through. */
  background: var(--paper);
  padding: 32px 0 22px;
}

/* Keep a section heading clear of the sticky header when jumped to by anchor. */
section[id] {
  scroll-margin-top: 92px;
}

.site-name {
  color: var(--ink);
  font-size: 15px;
  font-weight: 730;
  letter-spacing: -0.018em;
  text-decoration: none;
}

.site-header nav {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 25px;
}

.site-header nav a,
.nav-pending {
  color: #475569;
  font-size: 13.5px;
  font-weight: 620;
  text-decoration: none;
}

.site-header nav a:hover {
  color: var(--accent);
}

.nav-pending {
  color: #94a3b8;
  cursor: default;
}

.page-shell {
  display: grid;
  grid-template-columns: var(--profile-width) minmax(0, 1fr);
  gap: var(--gutter);
}

.profile {
  position: sticky;
  top: 28px;
  align-self: start;
  padding: 48px 0;
}

.profile-photo-frame {
  width: 196px;
  height: 196px;
  max-width: 100%;
  overflow: hidden;
  border: 1px solid var(--frame-line);
  border-radius: 5px;
  background: #e2e8f0;
}

.profile-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 36% 48%;
}

.profile-name {
  margin: 17px 0 1px;
  font-size: 21px;
  font-weight: 730;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.profile-role {
  margin: 0 0 13px;
  color: #475569;
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.45;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.icon-link {
  display: grid;
  width: 33px;
  height: 33px;
  place-items: center;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  color: #111827;
  background: var(--surface);
  text-decoration: none;
}

/* Every profile icon highlights in the accent colour - previously only the
   email and scholar links did, and the rest fell through to a dark fill. */
.icon-link:hover,
.icon-link:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.icon-link svg,
.resource-link svg,
.paper-mark svg,
.talk-mark svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.65;
}

.icon-link svg {
  width: 16px;
  height: 16px;
}

.icon-link .fill,
.resource-link .fill,
.brand-fill {
  fill: currentColor;
  stroke: none;
}

.colab-fill {
  fill: #f9ab00;
  stroke: none;
}

.contact-note {
  max-width: 205px;
  margin: 17px 0 0;
  color: var(--muted);
  font-size: 12.25px;
  line-height: 1.5;
}

main { min-width: 0; }

.intro { padding: 42px 0 28px; }

.eyebrow {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 10.5px;
  font-weight: 780;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.bio { max-width: 690px; }
.bio p { margin-bottom: 16px; }
.bio p:last-child { margin-bottom: 0; }

.intro-lead {
  color: #273449;
  font-size: inherit;
  line-height: inherit;
}

.worked-on {
  margin: 21px 0 23px;
}

.worked-on > p {
  margin-bottom: 8px;
  font-size: inherit;
  font-weight: 700;
}

.worked-on ul {
  margin: 0;
  padding-left: 21px;
}

.worked-on li {
  margin-bottom: 7px;
  color: #334155;
  font-size: inherit;
  line-height: inherit;
}

.worked-on li:last-child { margin-bottom: 0; }

.content-section {
  padding: 34px 0 42px;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 26px;
}

.section-heading h2 {
  margin-bottom: 10px;
  font-size: clamp(1.75rem, 3.4vw, 2.2rem);
  font-weight: 710;
  letter-spacing: -0.042em;
  line-height: 1.1;
}

.section-heading > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.publication-list { margin-top: 4px; }

.publication-year-heading {
  margin: 0 0 21px;
  padding: 0;
  color: var(--ink);
  font-size: 20px;
  font-weight: 720;
  letter-spacing: -0.025em;
}

.publication-year-heading:not(:first-child) { margin-top: 35px; }

.publication {
  display: grid;
  grid-template-columns: 136px minmax(0, 1fr);
  gap: 27px;
  padding: 0 0 34px;
  scroll-margin-top: 24px;
}

.paper-mark {
  display: grid;
  width: 136px;
  height: 136px;
  place-items: center;
  align-content: center;
  gap: 7px;
  overflow: hidden;
  border: 1px solid var(--frame-line);
  border-radius: 9px;
  color: var(--accent);
  background: var(--surface);
}

.paper-mark svg {
  width: 39px;
  height: 39px;
}

.paper-mark span {
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

/* <picture> wraps the animated thumbnail; it must fill the mark like a bare
   <img> would, since .paper-mark is a grid and <picture> is inline by default. */
.paper-mark picture {
  display: block;
  width: 100%;
  height: 100%;
}

.paper-mark img,
.talk-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Marks are square. Without this the box takes the image's own ratio - the
     width/height attributes only supply `aspect-ratio: auto 136/136`, and
     `auto` lets the loaded image override it - so a portrait source overflows
     and is clipped, and a landscape one sits short. Pinning the ratio makes
     the box exactly the mark, which is what object-fit needs to work. */
  aspect-ratio: 1;
}

/* Inline technology logos in running prose. The adjacent word names the
   technology, so the images are decorative and carry empty alt text. */
.tech {
  white-space: nowrap;
}

.tech-logo {
  /* Overrides the global `img, svg { display: block }` so the logo sits on
     the text baseline instead of forcing its own line. */
  display: inline-block;
  width: auto;
  height: 0.85em;
  margin-left: 0.2em;
  /* `middle` keys off the font's own x-height, so the logo stays optically
     centred on the lowercase letters whichever font in the stack resolves.
     A hand-tuned em offset only looks right in the font it was measured in. */
  vertical-align: middle;
}

/* SVG marks are diagrams, not photographs: show them whole rather than
   cropping to fill, on the soft accent so they carry the same visual weight
   as the full-bleed photo thumbnails. The raster marks keep `cover` above.
   `contain` is harmless for a square diagram and stops a landscape one
   losing its edge labels. */
.paper-mark img[src$=".svg"] {
  object-fit: contain;
}

/* For a near-square source, show it whole rather than letting the square mark
   crop its edges. The image is transparent-backed, so the thin bars this
   leaves are indistinguishable from the mark's own ground. */
.paper-mark.mark-contain img,
.talk-mark.mark-contain img {
  object-fit: contain;
}

/* Tint and padding live on the mark, not the image: a non-square diagram's
   <img> collapses to its own aspect ratio (the mark is a grid with
   place-items:center, so the item is never stretched), which left the
   letterbox bands unpainted when the background sat on the image. */
.paper-mark.mark-diagram {
  padding: 10px;
  background: var(--accent-soft);
}

/* Per-paper tints, so a mark can sit on something other than the default
   lavender when the diagram's own palette suits a different ground. */
.paper-mark.mark-grey,     .talk-mark.mark-grey     { background: #eef1f5; }
.paper-mark.mark-yellow,   .talk-mark.mark-yellow   { background: #fdf7e3; }
.paper-mark.mark-lavender, .talk-mark.mark-lavender { background: var(--accent-soft); }
.paper-mark.mark-teal,     .talk-mark.mark-teal     { background: #e4f2f1; }
.paper-mark.mark-navy,     .talk-mark.mark-navy     { background: #0d1b2a; }
/* For a dark-ground slide, so letterbox bars match the image instead of
   framing it in a pale colour. */
.paper-mark.mark-dark,     .talk-mark.mark-dark     { background: #303030; }

.publication-copy {
  min-width: 0;
}

.publication h3 {
  max-width: 720px;
  margin-bottom: 7px;
  font-size: 17.5px;
  font-weight: 690;
  letter-spacing: -0.017em;
  line-height: 1.35;
}

.publication h3 a {
  color: var(--ink);
  text-decoration: none;
}

.publication h3 a:hover {
  color: var(--accent);
}

.bio a:hover,
.worked-on a:hover,
.project a:hover {
  border-radius: 2px;
  background: var(--accent-soft);
}

.authors,
.author-list,
.venue {
  font-size: 13.5px;
  line-height: 1.52;
}

.authors {
  margin-bottom: 3px;
  color: #526075;
}

.authors strong,
.author-list strong {
  color: #273449;
  font-weight: 730;
}

.venue {
  margin-bottom: 7px;
  color: var(--muted);
}

.venue strong {
  color: #475569;
  font-weight: 650;
}

.award {
  display: inline-block;
  margin-left: 5px;
  padding: 2px 7px 3px;
  border-radius: 999px;
  color: var(--accent-dark);
  background: #ede9fe;
  font-size: 11px;
  font-weight: 740;
  line-height: 1.35;
}

.publication-summary {
  max-width: 610px;
  margin: 8px 0 10px;
  color: #334155;
  font-size: 14px;
  line-height: 1.55;
}

.author-list {
  margin: 0 0 4px;
  color: #526075;
}

.author-list summary { cursor: pointer; }

.author-list p {
  margin: 8px 0 0;
  padding: 10px 13px;
  border-radius: 6px;
  background: var(--accent-soft);
}

.resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.resource-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 8px 4px 6px;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  color: #475569;
  background: var(--surface);
  font-size: 11.5px;
  font-weight: 670;
  line-height: 1.2;
  text-decoration: none;
}

.resource-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.resource-link svg {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
}

.colab-link svg { color: #f9ab00; }

.news-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Borderless rows: year, a category chip, then the text. */
.news-list li {
  display: grid;
  grid-template-columns: 54px 28px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 9px 0;
  font-size: 13.25px;
  line-height: 1.55;
}

.news-list time {
  padding-top: 4px;
  color: var(--muted);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  font-weight: 670;
}

.news-mark {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1;
}

.news-mark img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.news-mark-paper     { background: #e9eefc; }
.news-mark-award     { background: #fcebf1; }
.news-mark-community { background: #fdf3e2; }
.news-mark-role      { background: #e9f3ec; }
.news-mark-logo      { background: var(--surface); border: 1px solid var(--frame-line); }

.news-text {
  padding-top: 3px;
}

.news-list cite {
  font-style: normal;
  font-weight: 630;
}

.talk-section {
  margin-top: 52px;
}

.section-heading + .talk-section { margin-top: 0; }

.talk-section > h3 {
  margin: 0;
  padding: 0 0 19px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.talk-row {
  display: grid;
  grid-template-columns: 136px minmax(0, 1fr);
  gap: 27px;
  padding: 0 0 31px;
}

.talk-mark {
  display: grid;
  width: 136px;
  height: 136px;
  place-items: center;
  align-content: center;
  gap: 5px;
  overflow: hidden;
  border: 1px solid var(--frame-line);
  border-radius: 9px;
  color: var(--accent);
  background: var(--accent-soft);
}

.talk-mark svg {
  width: 39px;
  height: 39px;
}

.talk-mark span {
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.07em;
}

.talk-row h4 {
  margin-bottom: 2px;
  font-size: 15px;
  font-weight: 680;
  letter-spacing: -0.012em;
  line-height: 1.4;
}

.talk-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
}

.talk-year {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 12px;
  font-weight: 720;
}

.talk-row h4 a {
  color: var(--ink);
  text-decoration: none;
}

.talk-row h4 a:hover {
  color: var(--accent);
}

.talk-meta {
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 12px;
}

/* Links inside the muted meta line stay muted - a purple venue name on every
   row would pull focus from the talk titles. Underlined so they read as links. */
.talk-meta a,
.news-list a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--accent-line);
}

.talk-meta a:hover,
.news-list a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

.talk-row .resource-links { margin-top: 8px; }

.projects > h2 {
  margin-bottom: 24px;
  font-size: clamp(1.75rem, 3.4vw, 2.2rem);
  font-weight: 710;
  letter-spacing: -0.042em;
  line-height: 1.1;
}

.project {
  max-width: 690px;
  margin-bottom: 32px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.project:last-child { margin-bottom: 0; }

.project-with-image {
  display: grid;
  grid-template-columns: 136px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.project-image-frame {
  width: 136px;
  height: 136px;
  overflow: hidden;
  border: 1px solid var(--frame-line);
  border-radius: 9px;
  background: var(--accent-soft);
}

.project-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.project-copy { min-width: 0; }

.project-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 7px;
}

.project-header h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.018em;
}

.project-year {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 12px;
  font-weight: 720;
}

.project > p,
.project-copy > p {
  margin: 0;
  color: #475569;
  font-size: 14px;
  line-height: 1.58;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px 14px;
  margin-top: 11px !important;
  color: var(--muted) !important;
  font-size: 12.5px !important;
}

.project-meta a { font-weight: 650; }

.project-meta .award { margin-left: 0; }

.project-list { border-top: 1px solid var(--rule); }

.project-list article {
  display: grid;
  grid-template-columns: 155px minmax(0, 1fr);
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}

.project-list h3 {
  margin-bottom: 0;
  font-size: 13.5px;
  font-weight: 690;
}

.project-list p {
  max-width: 590px;
  margin: 0;
  color: #475569;
  font-size: 13px;
  line-height: 1.52;
}

.awards-block { margin-top: 45px; }

.awards-block h3 {
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 700;
}

.awards-block ul {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
  list-style: none;
}

.awards-block li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 18px;
  padding: 11px 0;
  border-bottom: 1px solid var(--rule);
  color: #475569;
  font-size: 12.75px;
}

.awards-block li span {
  color: var(--accent);
  font-size: 11.5px;
  font-weight: 690;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 44px;
  color: var(--muted);
  font-size: 10.5px;
}

footer p { margin: 0; }

@media (max-width: 850px) {
  :root {
    --profile-width: 190px;
    --gutter: 44px;
  }

  .site-header,
  .page-shell { width: min(calc(100% - 40px), var(--content-width)); }

  .profile-photo-frame {
    width: 176px;
    height: 176px;
  }

}

@media (max-width: 680px) {
  .news-list li {
    grid-template-columns: 46px 26px minmax(0, 1fr);
    gap: 12px;
  }

  .news-mark {
    width: 26px;
    height: 26px;
  }

  html { scroll-padding-top: 18px; }

  .site-header,
  .page-shell { width: min(calc(100% - 34px), var(--content-width)); }

  .site-header {
    display: block;
    padding: 23px 0 15px;
  }

  .site-name {
    display: block;
    margin-bottom: 13px;
  }

  .site-header nav {
    gap: 21px;
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    padding-bottom: 2px;
    white-space: nowrap;
    scrollbar-width: none;
  }

  .site-header nav::-webkit-scrollbar { display: none; }

  .page-shell { display: block; }

  .profile {
    position: static;
    display: grid;
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 0 20px;
    padding: 32px 0 0;
  }

  .profile-photo-frame {
    grid-row: 1 / span 3;
    width: 128px;
    height: 128px;
  }

  .profile-name {
    align-self: end;
    margin: 0 0 2px;
    font-size: 19px;
  }

  .profile-role {
    align-self: start;
    margin: 0 0 10px;
  }

  .social-links { align-self: start; }

  .contact-note {
    grid-column: 2;
    margin-top: 11px;
  }

  .intro { padding: 32px 0 24px; }
  .content-section { padding: 30px 0 36px; }

  .publication {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 20px;
    padding-bottom: 36px;
  }

  .paper-mark {
    width: 112px;
    height: 112px;
  }

  .talk-row {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 20px;
  }

  .talk-mark {
    width: 112px;
    height: 112px;
  }

  .project-with-image {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 18px;
  }

  .project-image-frame {
    width: 112px;
    height: 112px;
  }
}

@media (max-width: 470px) {
  body { font-size: 15.5px; }

  .profile {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 0 16px;
  }

  .profile-photo-frame {
    width: 104px;
    height: 104px;
  }

  .icon-link {
    width: 30px;
    height: 30px;
  }

  .contact-note {
    grid-column: 1 / -1;
    max-width: none;
    margin-top: 14px;
  }

  .publication {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 14px;
  }

  .paper-mark {
    width: 76px;
    height: 76px;
  }

  .paper-mark svg {
    width: 25px;
    height: 25px;
  }

  .paper-mark span { font-size: 8px; }

  .news-list li {
    grid-template-columns: 40px 24px minmax(0, 1fr);
    gap: 10px;
    font-size: 12.75px;
  }

  .news-mark {
    width: 24px;
    height: 24px;
    border-radius: 7px;
    font-size: 12px;
  }

  .news-mark img {
    width: 15px;
    height: 15px;
  }

  .talk-row {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 14px;
  }

  .talk-mark {
    width: 76px;
    height: 76px;
  }

  .talk-mark svg {
    width: 25px;
    height: 25px;
  }

  .project { padding: 0; }

  .project-with-image {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 13px;
  }

  .project-image-frame {
    width: 88px;
    height: 88px;
  }

  .project-header {
    gap: 12px;
  }

  .awards-block li {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 12px;
  }

  .project-list article {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  footer {
    flex-direction: column;
    gap: 2px;
  }
}

@media print {
  .site-header,
  .social-links,
  .contact-note,
  .resource-links { display: none; }

  .page-shell {
    display: block;
    width: 100%;
  }

  .profile {
    position: static;
    float: right;
    width: 160px;
    padding: 0 0 20px 24px;
  }

  .profile-photo-frame {
    width: 140px;
    height: 140px;
  }
}