:root {
  --bg: #ffffff;
  --text: #262626;
  --muted: #666666;
  --line: #dddddd;
  --accent: #e4b85d;
  --accent-warm: #cd9280;
  --max-width: 980px;
  --page-gutter: 30px;
  --page-gutter-small: 21px;
  --font-family-base: "Source Sans 3", Arial, sans-serif;
  --font-size-bump: 2pt;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-family-base);
  font-size: calc(16px + var(--font-size-bump));
  line-height: 1.62;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.06em;
  text-underline-offset: 0.22em;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

a:hover,
a:focus-visible,
a:active {
  color: var(--accent);
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 32px;
  width: min(var(--max-width), calc(100% - var(--page-gutter)));
  margin: 0 auto;
  padding: 32px 0 18px;
  border-bottom: 1px solid var(--line);
}

.site-name {
  color: var(--text);
  font-size: calc(1.2rem + var(--font-size-bump));
  font-weight: 700;
  text-decoration: none;
}

.site-name:hover,
.site-name:focus-visible,
.site-name:active {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: calc(1.08rem + var(--font-size-bump));
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--text);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a:active {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg);
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  width: 18px;
  height: 2px;
  background: var(--text);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.page-shell {
  width: min(var(--max-width), calc(100% - var(--page-gutter)));
  margin: 0 auto;
  padding: 48px 0 64px;
}

.about-layout {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.about-copy {
  max-width: 680px;
}

h1,
h2 {
  margin: 0;
  color: var(--text);
  font-family: var(--font-family-base);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(
    calc(2rem + var(--font-size-bump)),
    calc(5vw + var(--font-size-bump)),
    calc(3.2rem + var(--font-size-bump))
  );
}

h2 {
  font-size: calc(1.42rem + var(--font-size-bump));
}

.profile-bio {
  margin-top: 26px;
  color: #333333;
}

.profile-bio p {
  margin: 0 0 18px;
}

.profile-bio a {
  color: var(--text);
}

.profile-bio a:hover,
.profile-bio a:focus-visible,
.profile-bio a:active {
  color: var(--accent);
}

.profile-links,
.footer-links,
.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.profile-links {
  margin-top: 28px;
}

.profile-link,
.text-link {
  font-weight: 700;
}

.button-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: #ffffff;
  background: var(--accent);
  font: inherit;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
}

.button-link:hover {
  border-color: var(--accent-warm);
  color: #ffffff;
  background: var(--accent-warm);
}

.button-link-secondary {
  color: var(--accent);
  background: var(--bg);
}

.button-link-secondary:hover {
  color: var(--accent-warm);
  background: var(--bg);
}

.button-link-small {
  min-height: 34px;
  padding: 6px 10px;
  font-size: calc(0.92rem + var(--font-size-bump));
}

.button-link.is-disabled,
.button-link:disabled {
  border-color: var(--line);
  color: var(--muted);
  background: #f6f6f6;
  cursor: default;
}

.portrait-frame {
  margin: 0;
}

.portrait-frame img {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 4px;
  object-fit: cover;
}

.page-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.page-heading p {
  margin: 12px 0 0;
  color: var(--muted);
}

.research-section {
  padding-top: 32px;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.research-section:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.research-section > h2 {
  margin-bottom: 20px;
  font-size: calc(1.56rem + var(--font-size-bump));
}

.content-section {
  max-width: 820px;
  padding-top: 28px;
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.content-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.cv-shell {
  min-height: 42vh;
}

.cv-actions {
  max-width: 620px;
}

.cv-action-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.teaching-award {
  margin: 8px 0 26px;
  color: var(--accent-warm);
  font-size: calc(1.16rem + var(--font-size-bump));
  line-height: 1.35;
}

.teaching-award-years {
  color: inherit;
  font-weight: 500;
}

.teaching-award strong {
  font-weight: 400;
}

.plain-list,
.timeline {
  padding: 0;
  margin: 16px 0 0;
  list-style: none;
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline li {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 20px;
}

.timeline-years {
  color: var(--muted);
}

.timeline strong,
.timeline span span,
.timeline em {
  display: block;
}

.timeline span span,
.timeline em {
  color: var(--muted);
  font-style: normal;
}

.timeline-details {
  display: grid;
  gap: 6px;
  margin: 8px 0 0;
  padding-left: 1.15em;
  color: var(--muted);
}

.timeline-details li {
  display: list-item;
  list-style: disc;
}

.plain-list {
  display: grid;
  gap: 10px;
}

.plain-list li {
  color: #333333;
}

.paper-list {
  display: grid;
  gap: 28px;
}

.paper-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  gap: 34px;
  align-items: start;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.paper-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.paper-item-featured {
  grid-template-columns: minmax(0, 1fr) minmax(353px, 437px);
}

.paper-item-featured .paper-figure {
  width: 100%;
  max-width: 437px;
  justify-self: start;
}

.paper-item-featured .paper-figure-stack {
  width: 100%;
  max-width: 437px;
  justify-self: start;
}

.paper-content h2 {
  font-size: calc(1.16rem + var(--font-size-bump));
  font-weight: 400;
  line-height: 1.35;
}

.paper-title-link {
  color: var(--text);
  text-decoration: none;
}

.paper-title-link:hover,
.paper-title-link:focus-visible,
.paper-title-link:active {
  color: var(--accent);
}

.paper-inline-authors {
  color: var(--accent-warm);
  font-size: calc(0.92rem + var(--font-size-bump));
  font-weight: 500;
}

.paper-author-name,
.paper-author-link {
  color: var(--accent-warm);
  text-decoration: none;
}

.paper-author-link:hover,
.paper-author-link:focus-visible,
.paper-author-link:active {
  color: var(--accent);
}

.paper-inline-status {
  color: var(--accent-warm);
  font-size: calc(0.92rem + var(--font-size-bump));
  font-weight: 500;
}

.paper-meta {
  margin: 8px 0 0;
  color: var(--accent-warm);
  font-weight: 700;
}

.paper-citation {
  margin: 8px 0 0;
  color: #333333;
  font-size: calc(0.92rem + var(--font-size-bump));
  line-height: 1.45;
}

.paper-citation-link {
  color: var(--muted);
}

.paper-authors,
.paper-summary {
  margin: 12px 0 0;
}

.paper-authors {
  color: var(--accent-warm);
  font-size: calc(0.875rem + var(--font-size-bump));
  line-height: 1.5;
}

.paper-summary {
  color: #333333;
  font-size: calc(1rem + var(--font-size-bump) - 1pt);
  line-height: 1.48;
}

.paper-links {
  margin-top: 14px;
}

.paper-links a {
  font-weight: 700;
}

.paper-item-collapsible {
  grid-template-columns: 1fr;
  gap: 14px;
}

.paper-abstract-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
  max-width: 100%;
}

.paper-abstract-panel .paper-figure {
  max-width: 380px;
}

.paper-abstract-panel .paper-summary {
  margin-top: 0;
}

.paper-abstract-panel-text {
  margin-top: 12px;
}

[hidden] {
  display: none !important;
}

.paper-figure-stack,
.paper-abstract-figures {
  display: grid;
  gap: 18px;
  align-items: start;
}

.paper-figure {
  margin: 0;
}

.paper-figure img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 4px;
  object-fit: contain;
  background: #fafafa;
}

.empty-note {
  margin: 0;
  color: var(--muted);
  font-style: italic;
}

.wip-list {
  display: grid;
  gap: 12px;
}

.wip-item {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.wip-item:first-child {
  border-top: 0;
  padding-top: 0;
}

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

.wip-title-block {
  min-width: 0;
}

.wip-header h3 {
  margin: 0;
  font-family: var(--font-family-base);
  font-size: calc(1.16rem + var(--font-size-bump));
  font-weight: 400;
  line-height: 1.35;
}

.wip-authors {
  margin: 4px 0 0;
  color: var(--accent-warm);
  font-size: calc(0.875rem + var(--font-size-bump));
  line-height: 1.45;
}

.wip-status {
  color: var(--muted);
  font-weight: 700;
}

.abstract-toggle {
  flex: 0 0 auto;
  padding: 6px 10px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--accent);
  background: var(--bg);
  font: inherit;
  font-size: calc(0.92rem + var(--font-size-bump));
  font-weight: 700;
  cursor: pointer;
}

.abstract-toggle:hover {
  border-color: var(--accent-warm);
  color: var(--accent-warm);
}

.wip-abstract {
  max-width: 720px;
  margin: 0;
  color: #333333;
  font-size: calc(1rem + var(--font-size-bump) - 1pt);
  line-height: 1.48;
}

.wip-abstract-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(353px, 437px);
  gap: 18px;
  align-items: start;
  margin-top: 14px;
}

.wip-abstract-panel .paper-figure {
  width: 100%;
  max-width: 437px;
}

.wip-abstract-panel .paper-figure img {
  aspect-ratio: 5 / 3;
  object-fit: contain;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(var(--max-width), calc(100% - var(--page-gutter)));
  margin: 0 auto;
  padding: 24px 0 36px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

.footer-links a {
  font-weight: 700;
}

@media (max-width: 760px) {
  .site-header {
    align-items: center;
    padding-top: 20px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    right: 15px;
    left: 15px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 10px 0;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--bg);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.08);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    padding: 10px 16px;
  }

  .about-layout,
  .paper-item,
  .paper-abstract-panel,
  .wip-abstract-panel,
  .wip-header,
  .timeline li,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .wip-header {
    display: grid;
    gap: 10px;
  }

  .abstract-toggle {
    width: fit-content;
  }

  .about-layout {
    gap: 30px;
  }

  .portrait-frame {
    width: min(100%, 300px);
  }

  .site-footer {
    display: grid;
    align-items: start;
  }
}

@media (max-width: 480px) {
  .site-header,
  .page-shell,
  .site-footer {
    width: min(var(--max-width), calc(100% - var(--page-gutter-small)));
  }

  .site-nav {
    right: 10.5px;
    left: 10.5px;
  }
}