:root {
  --paper: #fbfbf8;
  --paper-soft: #ffffff;
  --ink: #171717;
  --text: #30312d;
  --muted: #69665f;
  --line: #e3e0d8;
  --line-strong: #c7c1b6;
  --accent: #a73e25;
  --accent-2: #0c6c66;
  --accent-3: #d7a13a;
  --max: 1180px;
  --sidebar: 250px;
  --radius: 8px;
  --shadow: 0 20px 60px rgba(45, 35, 22, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    linear-gradient(90deg, rgba(23, 23, 23, 0.018) 1px, transparent 1px) 0 0 / 72px 72px,
    radial-gradient(circle at 16% 10%, rgba(215, 161, 58, 0.045), transparent 27rem),
    radial-gradient(circle at 92% 22%, rgba(12, 108, 102, 0.035), transparent 25rem),
    var(--paper);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

a {
  color: #084a87;
  text-decoration: none;
}

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

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

strong {
  color: var(--ink);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 0.65rem 0.9rem;
  color: var(--paper-soft);
  background: var(--ink);
  border-radius: var(--radius);
  transform: translateY(-180%);
  transition: transform 180ms ease;
}

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

.masthead {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 251, 248, 0.9);
  border-bottom: 1px solid rgba(199, 193, 182, 0.45);
  backdrop-filter: blur(18px);
}

.top-nav {
  display: flex;
  gap: 28px;
  align-items: center;
  width: min(var(--max), calc(100% - 44px));
  min-height: 54px;
  margin: 0 auto;
  overflow-x: auto;
  white-space: nowrap;
}

.top-nav a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 750;
}

.top-nav a:hover,
.top-nav a.is-active,
.top-nav .home-link {
  color: var(--ink);
}

.page-shell {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr);
  gap: 56px;
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
  padding: 42px 0 70px;
}

.sidebar {
  min-width: 0;
}

.identity-card {
  position: sticky;
  top: 84px;
  display: grid;
  gap: 0;
  min-width: 0;
}

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

h1 {
  margin-bottom: 2px;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.68rem;
  line-height: 1.1;
  letter-spacing: 0;
}

.role {
  margin-bottom: 24px;
  color: var(--ink);
  font-weight: 750;
}

.profile-note {
  margin-bottom: 22px;
  color: var(--muted);
  overflow-wrap: break-word;
}

.contact-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0 0 26px;
  list-style: none;
}

.contact-list li {
  display: flex;
  gap: 9px;
  align-items: center;
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 650;
}

.contact-list li::before {
  display: inline-grid;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  place-items: center;
  color: var(--accent);
  content: "•";
  font-size: 1.05rem;
}

.mini-timeline {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.mini-timeline div {
  padding: 12px 13px;
  background: rgba(255, 250, 241, 0.64);
}

.mini-timeline span,
.venue,
.news-list time {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.mini-timeline strong {
  display: block;
  margin-top: 2px;
  font-size: 0.94rem;
}

.content {
  min-width: 0;
  max-width: 880px;
}

.section {
  min-width: 0;
  padding: 25px 0 42px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 76px;
}

.section:first-child {
  padding-top: 24px;
}

.section:last-child {
  border-bottom: 0;
}

.about {
  font-size: 1.04rem;
}

.about p {
  margin-bottom: 13px;
  overflow-wrap: break-word;
}

h2 {
  margin-bottom: 16px;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.86rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.section-heading {
  display: flex;
  gap: 20px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-heading h2 {
  margin-bottom: 0;
}

.section-heading > * {
  min-width: 0;
}

.section-heading > a {
  flex: 0 0 auto;
  font-size: 0.9rem;
  font-weight: 800;
}

.subheading {
  margin: 18px 0 16px;
  color: var(--text);
  font-size: 1.22rem;
  line-height: 1.3;
}

.news-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.news-list li {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
}

.news-list time {
  color: #0b568f;
}

.news-list span {
  min-width: 0;
  overflow-wrap: break-word;
}

.paper-list {
  display: grid;
  gap: 0;
}

.paper-item {
  display: grid;
  grid-template-columns: 238px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid rgba(189, 173, 146, 0.55);
}

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

.paper-thumb {
  width: 238px;
  height: 116px;
  object-fit: cover;
  background: var(--paper-soft);
  border: 1px solid rgba(189, 173, 146, 0.72);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(45, 35, 22, 0.08);
}

.paper-thumb-wide {
  object-fit: contain;
  background: #fff;
}

.paper-body {
  min-width: 0;
}

.paper-body h4 {
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 1.04rem;
  line-height: 1.28;
}

.paper-body h4 a {
  color: var(--ink);
}

.paper-body h4 a:hover {
  color: var(--accent);
}

.citation-badge {
  display: inline-flex;
  align-items: center;
  min-height: 19px;
  margin-left: 7px;
  padding: 1px 7px;
  color: #6f604f;
  vertical-align: 0.08em;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(189, 173, 146, 0.78);
  border-radius: 999px;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

.citation-badge.is-loaded {
  color: #0b568f;
  background: rgba(226, 240, 248, 0.88);
  border-color: rgba(104, 155, 187, 0.55);
}

.citation-badge.is-missing,
.citation-badge.is-error {
  color: var(--muted);
}

.paper-body p {
  margin-bottom: 5px;
  color: var(--text);
  font-size: 0.94rem;
  line-height: 1.5;
  overflow-wrap: break-word;
}

.paper-body .venue {
  margin-bottom: 0;
  color: var(--text);
  text-transform: none;
}

.award-list {
  padding-left: 1.15rem;
  margin: 0;
}

.award-list li {
  margin-bottom: 10px;
}

.publication-details {
  margin-top: 34px;
  border-top: 1px solid rgba(189, 173, 146, 0.7);
}

.publication-details summary {
  display: flex;
  gap: 16px;
  align-items: baseline;
  justify-content: space-between;
  padding: 18px 0;
  color: var(--ink);
  cursor: pointer;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.3;
  list-style: none;
}

.publication-details summary span {
  min-width: 0;
}

.publication-details summary::-webkit-details-marker {
  display: none;
}

.publication-details summary::after {
  flex: 0 0 auto;
  color: var(--accent);
  content: "+";
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1.25rem;
  font-weight: 800;
}

.publication-details[open] summary::after {
  content: "-";
}

.publication-details summary small {
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
  padding: 24px 0 42px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
}

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

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

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

@media (max-width: 920px) {
  .page-shell {
    grid-template-columns: 1fr;
    gap: 22px;
    padding-top: 26px;
  }

  .identity-card {
    position: static;
    display: block;
  }

  .profile-note,
  .contact-list,
  .mini-timeline {
    grid-column: 1 / -1;
  }

  .mini-timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .content {
    max-width: none;
  }
}

@media (max-width: 680px) {
  body {
    font-size: 15px;
  }

  .top-nav,
  .page-shell,
  .site-footer {
    width: calc(100vw - 28px);
    max-width: var(--max);
  }

  .top-nav {
    gap: 13px;
  }

  .top-nav a {
    font-size: 0.84rem;
  }

  .mini-timeline {
    grid-template-columns: 1fr;
  }

  .news-list li {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 12px;
  }

  .section-heading {
    display: block;
  }

  .section-heading h2 {
    margin-bottom: 6px;
  }

  .paper-item {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 20px 0;
  }

  .paper-thumb {
    width: 100%;
    height: auto;
    min-height: 126px;
    aspect-ratio: 2.05;
  }

  .publication-details summary {
    flex-wrap: wrap;
    gap: 6px 12px;
    align-items: flex-start;
  }

  .publication-details summary span {
    flex: 1 1 auto;
  }

  .publication-details summary::after {
    order: 2;
    margin-left: auto;
  }

  .publication-details summary small {
    flex-basis: 100%;
    order: 3;
  }

  .site-footer {
    display: grid;
    gap: 4px;
  }
}