:root {
  --background: #ffffff;
  --ink: #282424;
  --body-ink: #212121;
  --heading-blue: #990000;
  --link-blue: #990000;
  --link-hover: #990000;
  --rule: #dedede;
  --soft-row: #f7fafb;
  --display: "Libre Caslon Display", "Times New Roman", serif;
  --text-serif: "Gentium Basic", "Gentium Book Plus", Georgia, serif;
  --heading-serif: "Lora", Georgia, serif;
  --utility-serif: "Libre Caslon Text", Georgia, serif;
  --source-sans: "Open Sans", Arial, sans-serif;
  --page-width: 1129px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--body-ink);
  background: var(--background);
  font-family: var(--text-serif);
  font-size: 14.6667px;
  font-weight: 400;
  line-height: 24.4449px;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link-blue);
  text-decoration: none;
  text-underline-offset: 0.18em;
  transition: color 180ms ease, text-decoration-color 180ms ease;
}

a:hover,
a:focus-visible {
  color: var(--link-hover);
  text-decoration: underline;
}

a:focus-visible {
  outline: 1px solid var(--link-hover);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.4rem 0.75rem;
  transform: translateY(-180%);
  color: #ffffff;
  background: var(--ink);
  font-family: var(--utility-serif);
}

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

.site-nav {
  width: min(calc(100% - 80px), var(--page-width));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--rule);
  font-family: var(--heading-serif);
}

.site-mark {
  flex: 0 0 auto;
  color: var(--ink);
  font-family: var(--display);
  font-size: 22px;
  line-height: 1;
}

.site-mark:hover,
.site-mark:focus-visible {
  color: var(--ink);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.55rem;
  color: #9b9b9b;
  font-size: 16px;
  line-height: 19.36px;
}

.nav-links a {
  position: relative;
  padding: 11.5px 4px;
  color: var(--link-blue);
  white-space: nowrap;
}

.nav-links a::after {
  content: "";
  position: absolute;
  right: 4px;
  bottom: 6px;
  left: 4px;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  background: currentColor;
  transition: transform 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.active {
  color: var(--link-hover);
  text-decoration: none;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* About page: profile composition modelled on the Jia Nan faculty profile. */
.about-page .site-nav {
  width: min(calc(100% - 80px), var(--page-width));
  min-height: 76px;
  padding: 0;
  display: flex;
  justify-items: initial;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--rule);
}

.about-page .site-mark {
  color: var(--ink);
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: 0;
}

.about-page .nav-links {
  justify-content: flex-end;
  gap: 0.55rem;
  font-family: var(--heading-serif);
  font-size: 16px;
  font-weight: 400;
  line-height: 19.36px;
  text-transform: none;
}

.about-page .nav-links span {
  display: inline;
}

.about-page .nav-links a {
  padding: 11.5px 4px;
  color: var(--link-blue);
}

.person-profile {
  width: min(100%, 1280px);
  margin: 50px auto 0;
  padding: 0 50px 100px;
  display: grid;
  grid-template-columns: minmax(0, 590px) minmax(0, 590px);
  align-items: start;
  column-gap: 0;
}

.person-biography {
  padding: 125px 0 0 50px;
}

.person-biography h1 {
  position: relative;
  margin: 21px -1.564px 0 0;
  color: var(--ink);
  font-family: var(--display);
  font-size: 46px;
  font-weight: 400;
  letter-spacing: 0.034em;
  line-height: 48.76px;
}

.person-appointments {
  width: 540px;
  margin: 7px 0 0;
  padding: 0;
  list-style: none;
  color: var(--ink);
  font-family: var(--utility-serif);
  font-size: 13px;
  line-height: 19.5px;
}

.person-appointments li {
  padding-left: 0;
}

.person-description {
  width: 540px;
  max-width: 100%;
  margin-top: 41px;
  color: var(--ink);
  font-family: var(--utility-serif);
  font-size: 14px;
  letter-spacing: 0.05em;
  line-height: 19.5px;
}

.person-description p {
  margin: 18px 0 0;
}

.person-aside {
  min-width: 0;
  padding-left: 50px;
}

.portrait-frame {
  position: relative;
  z-index: 0;
  width: 540px;
  max-width: 100%;
  margin: 28px 0 0;
  padding: 0;
}

.portrait-frame::after {
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  content: "";
  border: 1px solid #990000;
  transform: translate(-10px, 10px);
}

.about-page .profile-photo,
.about-page .profile-placeholder {
  width: 100%;
  height: auto;
  aspect-ratio: 6 / 7;
  border: 0;
  border-radius: 0;
}

.about-page .profile-photo {
  position: relative;
  z-index: 1;
  object-position: center center;
}

.about-page .profile-placeholder {
  position: relative;
  z-index: 1;
  font-size: 56px;
}

.person-links {
  margin-top: 124px;
  padding-left: 20px;
  color: #545454;
  font-family: var(--source-sans);
}

.person-links address {
  margin: 0;
  padding: 0;
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 16.8px;
}

.person-links address a,
.person-links address span {
  display: block;
  color: #545454;
  text-transform: uppercase;
}

.person-links address a {
  width: fit-content;
  padding: 0.6px 0;
  border-bottom: 1px solid #ffcc00;
}

.person-links a:hover,
.person-links a:focus-visible {
  color: #990000;
}

.person-details {
  width: min(100%, 490px);
  margin: 86px 0 0;
  padding-right: 0;
  color: #545454;
  font-family: var(--source-sans);
}

.person-details h2 {
  margin: 0;
  padding-bottom: 4px;
  color: #282424;
  font-family: var(--source-sans);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  line-height: 11px;
  text-transform: uppercase;
}

.person-details p {
  margin: 12px 0 0;
  padding-left: 0;
  color: #282424;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  line-height: 11px;
  text-transform: uppercase;
}

.profile-hero {
  border-bottom: 1px solid var(--rule);
}

.hero-inner {
  width: min(calc(100% - 80px), var(--page-width));
  min-height: 520px;
  margin: 0 auto;
  padding: 78px 0 72px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  align-items: center;
  gap: clamp(64px, 10vw, 150px);
  animation: enter 480ms ease-out both;
}

.profile-intro {
  max-width: 660px;
}

.profile-intro h1 {
  margin: 0;
  color: var(--ink);
  font-family: var(--display);
  font-size: 46px;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 48.76px;
}

.profile-title {
  max-width: 600px;
  margin: 21px 0 0;
  color: var(--ink);
  font-family: var(--utility-serif);
  font-size: 14px;
  line-height: 19.5px;
}

.contact-line {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.65rem;
  color: #545454;
  font-family: var(--utility-serif);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
  line-height: 18px;
}

.contact-line a {
  color: #545454;
}

.profile-media,
.profile-photo,
.profile-placeholder {
  width: 220px;
  height: 270px;
}

.profile-media {
  position: relative;
}

.profile-photo {
  display: block;
  object-fit: cover;
  object-position: center 18%;
  border: 1px solid var(--rule);
  border-radius: 0;
  background: #eeeeee;
}

.profile-placeholder {
  display: grid;
  place-items: center;
  border: 1px solid #cfcfcf;
  color: #ffffff;
  background: #a9a9a9;
  font-family: var(--display);
  font-size: 54px;
}

.profile-placeholder[hidden] {
  display: none;
}

.compact-header {
  width: min(calc(100% - 80px), var(--page-width));
  margin: 0 auto;
  padding: 72px 0 38px;
  animation: enter 420ms ease-out both;
}

.compact-header .site-kicker {
  margin: 0 0 9px;
  color: var(--ink);
  font-family: var(--utility-serif);
  font-size: 13px;
  line-height: 19.5px;
}

.compact-header h1 {
  margin: 0;
  color: var(--ink);
  font-family: var(--display);
  font-size: 46px;
  font-weight: 400;
  line-height: 48.76px;
}

.content-shell {
  width: min(calc(100% - 80px), var(--page-width));
  margin: 0 auto;
  padding: 58px 0 92px;
}

.content-section + .content-section {
  margin-top: 72px;
}

.content-section h2 {
  margin: 0 0 24px;
  color: var(--heading-blue);
  font-family: var(--heading-serif);
  font-size: 25.3333px;
  font-weight: 400;
  line-height: 35.4667px;
}

.content-section p {
  max-width: 100%;
  margin: 0;
  color: var(--body-ink);
  font-family: var(--text-serif);
  font-size: 14.6667px;
  line-height: 24.4449px;
}

.academic-list {
  margin: 0;
  padding-left: 1.25rem;
}

.academic-list li {
  padding-left: 0.2rem;
  color: var(--body-ink);
}

.academic-list li + li {
  margin-top: 8px;
}

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

.publication-list li {
  margin: 0;
  padding: 20px 0;
  color: var(--heading-blue);
  border-top: 1px solid var(--rule);
  font-family: var(--heading-serif);
  font-size: 25.3333px;
  font-weight: 400;
  line-height: 35.4667px;
  transition: background-color 180ms ease, padding 180ms ease;
}

.publication-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.publication-list li:hover {
  padding-right: 12px;
  padding-left: 12px;
  background: var(--soft-row);
}

.research-publications {
  border-bottom: 1px solid var(--rule);
}

.research-publications .publication-card {
  color: var(--body-ink);
}

.research-publications .publication-card:hover {
  background: transparent;
}

.research-publications.numbered-list .publication-card {
  padding: 0 0 0 58px;
}

.research-publications.numbered-list .publication-card:hover {
  padding-left: 70px;
}

.research-publications.numbered-list .publication-card::before {
  top: 28px;
  color: var(--heading-blue);
  font-size: 16px;
}

.research-publications.numbered-list .publication-card:first-child::before {
  top: 28px;
}

.publication-toggle {
  width: 100%;
  margin: 0;
  padding: 22px 0 20px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 24px;
  border: 0;
  color: inherit;
  background: transparent;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color 180ms ease, padding 180ms ease;
}

.publication-toggle:hover,
.publication-toggle:focus-visible,
.publication-card.is-open .publication-toggle {
  padding-right: 12px;
  padding-left: 16px;
  background: var(--soft-row);
}

.publication-toggle:focus-visible {
  outline: 1px solid var(--link-hover);
  outline-offset: 4px;
}

.publication-title {
  grid-column: 1 / -1;
  color: var(--heading-blue);
  font-family: var(--heading-serif);
  font-size: 30px;
  font-weight: 400;
  line-height: 40px;
}

.publication-citation {
  color: var(--body-ink);
  font-family: var(--text-serif);
  font-size: 18px;
  line-height: 28px;
}

.publication-cue {
  align-self: start;
  color: #545454;
  font-family: var(--source-sans);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.13em;
  line-height: 16px;
  text-transform: uppercase;
}

.publication-card.is-open .publication-cue {
  color: var(--link-hover);
}

.publication-detail {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-4px);
  transition: max-height 240ms ease, opacity 200ms ease, transform 200ms ease;
}

.publication-card.is-open .publication-detail {
  max-height: 340px;
  opacity: 1;
  transform: translateY(0);
}

.publication-detail p {
  margin: 0;
  padding: 0 12px 14px;
  color: var(--body-ink);
  font-family: var(--text-serif);
  font-size: 14.6667px;
  line-height: 24px;
}

.publication-detail p span {
  color: var(--ink);
  font-weight: 700;
}

.official-link {
  width: fit-content;
  margin: 0 12px 24px;
  padding-bottom: 2px;
  display: inline-block;
  border-bottom: 1px solid #ffcc00;
  color: #545454;
  font-family: var(--source-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 16.8px;
  text-transform: uppercase;
}

.official-link:hover,
.official-link:focus-visible {
  color: var(--link-hover);
  text-decoration: none;
}

.numbered-list {
  counter-reset: numbered;
}

.publication-list.numbered-list li {
  position: relative;
  padding-left: 52px;
  counter-increment: numbered;
}

.publication-list.numbered-list li:hover {
  padding-left: 64px;
}

.publication-list.numbered-list li::before {
  content: counter(numbered, decimal-leading-zero);
  position: absolute;
  top: 26px;
  left: 0;
  color: var(--heading-blue);
  font-family: var(--heading-serif);
  font-size: 14px;
  line-height: 1;
}

.publication-list.numbered-list li:first-child::before {
  top: 2px;
}

.interactive-list li {
  transition: background-color 180ms ease, padding 180ms ease;
}

.interactive-list li:hover {
  padding-right: 12px;
  padding-left: calc(1.25rem + 12px);
  background: var(--soft-row);
}

.author-self {
  color: var(--ink);
  font-weight: 700;
}

.journal-name {
  color: var(--heading-blue);
  font-weight: 700;
}

.teaching-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: teaching;
}

.teaching-entry {
  position: relative;
  margin: 0;
  padding: 24px 0 24px 52px;
  border-top: 1px solid var(--rule);
  counter-increment: teaching;
  transition: background-color 180ms ease, padding-right 180ms ease;
}

.teaching-entry:first-child {
  border-top: 0;
  padding-top: 0;
}

.teaching-entry:hover {
  padding-right: 12px;
  padding-left: 64px;
  background: var(--soft-row);
}

.teaching-entry::before {
  content: counter(teaching, decimal-leading-zero);
  position: absolute;
  top: 26px;
  left: 0;
  color: var(--heading-blue);
  font-family: var(--heading-serif);
  font-size: 14px;
}

.teaching-entry:first-child::before {
  top: 2px;
}

.teaching-entry h2 {
  margin: 0;
  color: var(--heading-blue);
  font-family: var(--heading-serif);
  font-size: 20px;
  font-weight: 400;
  line-height: 28px;
}

.entry-meta {
  margin: 5px 0 0;
  color: var(--body-ink);
  font-family: var(--text-serif);
  font-size: 14.6667px;
  font-weight: 700;
  line-height: 20.24px;
}

.entry-description,
.entry-evaluation {
  margin: 8px 0 0;
  color: var(--body-ink);
  font-family: var(--text-serif);
  font-size: 14.6667px;
  line-height: 20.24px;
}

.entry-evaluation {
  color: #545454;
  font-style: italic;
}

.site-footer {
  width: min(calc(100% - 80px), var(--page-width));
  margin: 0 auto;
  padding: 28px 0 36px;
  border-top: 1px solid var(--rule);
  color: var(--body-ink);
  font-family: var(--text-serif);
  font-size: 13px;
  line-height: 19.5px;
}

.site-footer p {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 720px) {
  .site-nav {
    width: calc(100% - 32px);
    min-height: auto;
    padding: 18px 0 14px;
    display: block;
  }

  .site-mark {
    display: inline-block;
    margin-bottom: 10px;
    font-size: 20px;
  }

  .nav-links {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0 0.35rem;
    font-size: 14px;
    line-height: 18px;
  }

  .nav-links a {
    padding: 6px 2px;
  }

  .nav-links a::after {
    right: 2px;
    bottom: 2px;
    left: 2px;
  }

  .about-page .site-nav {
    width: calc(100% - 32px);
    min-height: auto;
    padding: 18px 0 14px;
    display: block;
  }

  .about-page .site-mark {
    font-size: 22px;
  }

  .about-page .nav-links {
    justify-content: flex-start;
    gap: 0 0.35rem;
    font-size: 11px;
    line-height: 15px;
  }

  .about-page .nav-links span {
    display: inline;
  }

  .person-profile {
    width: calc(100% - 32px);
    margin: 0 auto;
    padding: 39px 0 68px;
    display: flex;
    flex-direction: column;
    gap: 38px;
  }

  .person-biography {
    width: 100%;
    padding: 0;
    order: 2;
  }

  .person-biography h1 {
    margin: 0;
    font-size: 38px;
    letter-spacing: 0.02em;
    line-height: 42px;
  }

  .person-appointments {
    width: auto;
    margin: 18px 0 28px;
    font-size: 15px;
  }

  .person-description {
    width: auto;
    margin-top: 0;
    font-size: 14px;
    line-height: 1.7;
  }

  .person-aside {
    width: 100%;
    padding-left: 0;
    order: 1;
  }

  .portrait-frame {
    width: min(82%, 280px);
    margin: 0 0 0 10px;
  }

  .person-links,
  .person-details {
    max-width: 360px;
  }

  .person-links {
    margin-top: 36px;
  }

  .person-details {
    margin-top: 40px;
  }

  .hero-inner {
    width: calc(100% - 32px);
    min-height: auto;
    padding: 52px 0 56px;
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .profile-intro {
    order: 2;
  }

  .profile-media {
    order: 1;
  }

  .profile-media,
  .profile-photo,
  .profile-placeholder {
    width: 180px;
    height: 220px;
  }

  .profile-intro h1 {
    font-size: 38px;
    line-height: 42px;
  }

  .contact-line {
    display: block;
  }

  .contact-line span {
    display: block;
    margin-top: 4px;
  }

  .contact-line span[aria-hidden="true"] {
    display: none;
  }

  .compact-header,
  .content-shell,
  .site-footer {
    width: calc(100% - 32px);
  }

  .compact-header {
    padding: 52px 0 30px;
  }

  .compact-header h1 {
    font-size: 38px;
    line-height: 42px;
  }

  .content-shell {
    padding: 42px 0 64px;
  }

  .content-section + .content-section {
    margin-top: 54px;
  }

  .content-section h2 {
    font-size: 23px;
    line-height: 31px;
  }

  .publication-list li {
    font-size: 19px;
    line-height: 28px;
  }

  .research-publications.numbered-list .publication-card {
    padding-left: 42px;
  }

  .research-publications.numbered-list .publication-card:hover {
    padding-left: 48px;
  }

  .research-publications.numbered-list .publication-card::before,
  .research-publications.numbered-list .publication-card:first-child::before {
    top: 26px;
    font-size: 14px;
  }

  .publication-toggle {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .publication-title {
    font-size: 21px;
    line-height: 29px;
  }

  .publication-citation,
  .publication-detail p {
    font-size: 15px;
    line-height: 24px;
  }

  .publication-card.is-open .publication-detail {
    max-height: 520px;
  }

  .teaching-entry {
    padding-left: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}