:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-alt: #f5f7f9;
  --text: #1f2429;
  --muted: #59616a;
  --line: #d7dde4;
  --accent: #184a7a;
  --accent-soft: #eaf2fb;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --container: min(1080px, calc(100vw - 2rem));
  --reading: min(760px, calc(100vw - 2rem));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

button {
  font: inherit;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.reading-layout,
.cv-wrap {
  width: var(--reading);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.1rem;
}

.brand {
  color: var(--text);
  font-family: var(--serif);
  font-size: 1.18rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav a,
.nav-button {
  border: 0;
  padding: 0;
  color: var(--muted);
  background: transparent;
  text-decoration: none;
}

.site-nav a {
  position: relative;
  display: inline-block;
}

.site-nav a:hover,
.nav-button:hover {
  color: var(--text);
}

.site-nav a[aria-current]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.45rem;
  height: 0.55rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 8' preserveAspectRatio='none'%3E%3Cpath d='M0 4C2 1.8 4 1.8 6 4S10 6.2 12 4S16 1.8 18 4S22 6.2 24 4' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: repeat-x;
  background-position: 0 100%;
  background-size: 1.5rem 0.55rem;
  opacity: 0.5;
  pointer-events: none;
  animation: nav-wave-drift 1.35s linear infinite;
}

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

@keyframes nav-wave-drift {
  from {
    background-position: 0 100%;
  }

  to {
    background-position: 1.5rem 100%;
  }
}

.page-main {
  padding: 2.25rem 0 3rem;
}

.academic-layout {
  display: grid;
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
  gap: 3.25rem;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 5.5rem;
}

.sidebar__photo {
  display: block;
  width: min(100%, 190px);
  margin: 0 0 1rem;
  background: var(--surface);
}

.sidebar__label {
  margin: 0 0 0.65rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sidebar h1,
.page-heading h1,
.cv-header h1,
.content-section h2,
.publication-group__year {
  margin: 0;
  font-family: var(--serif);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.sidebar h1 {
  font-size: clamp(2.2rem, 5vw, 3rem);
}

.sidebar__role,
.sidebar__affiliation,
.lead,
.cv-header__role,
.section-note,
.page-heading__meta,
.publication-entry__meta,
.resource-item__meta,
.post-card__meta {
  color: var(--muted);
}

.sidebar__role,
.cv-header__role {
  margin: 0.8rem 0 0;
  font-size: 1.05rem;
}

.sidebar__affiliation {
  margin: 0.35rem 0 0;
  font-weight: 600;
}

.fact-list {
  display: grid;
  gap: 0.9rem;
  margin: 1.4rem 0 0;
}

.fact-list dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fact-list dd {
  margin: 0.18rem 0 0;
}

.sidebar__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.35rem;
}

.sidebar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.38rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}

.link-icon {
  width: 0.95rem;
  height: 0.95rem;
  flex: 0 0 auto;
  color: var(--muted);
}

.content-column {
  min-width: 0;
}

.content-section {
  padding-top: 0.25rem;
}

.content-section + .content-section {
  margin-top: 2.2rem;
  padding-top: 2.2rem;
  border-top: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.95rem;
}

.content-section h2,
.page-heading h1 {
  font-size: clamp(1.55rem, 2.6vw, 2rem);
}

.section-link,
.back-link {
  white-space: nowrap;
  font-size: 0.95rem;
}

.prose p,
.markdown-content p {
  margin: 0 0 1rem;
}

.lead {
  margin: 0 0 1rem;
  font-size: 0.98rem;
}

.section-note {
  margin: 0 0 1rem;
}

.focus-list {
  display: grid;
  gap: 1rem;
}

.focus-item h3,
.resource-item h3,
.post-card h3,
.publication-entry h3 {
  margin: 0 0 0.18rem;
  font-size: 0.98rem;
  line-height: 1.45;
}

.focus-item p,
.resource-item p,
.post-card p,
.publication-entry p {
  margin: 0;
}

.publication-list,
.resource-list,
.detail-list,
.post-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.publication-list {
  display: grid;
  gap: 1.2rem;
}

.publication-entry {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.9rem;
}

.publication-entry__year {
  color: var(--muted);
  font-size: 0.92rem;
}

.link-row,
.post-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.45rem;
}

.resource-list,
.detail-list,
.post-list {
  display: grid;
  gap: 1rem;
}

.resource-item,
.detail-list li,
.post-card {
  padding: 1rem 1.05rem;
  border: 1px solid var(--line);
  background: var(--surface);
}

.resource-item p,
.detail-list li {
  color: var(--muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.48rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1rem 0 1.5rem;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.92rem;
}

.cv-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
}

.page-cv .content-section + .content-section {
  margin-top: 2.2rem;
  padding-top: 0;
  border-top: 0;
}

.cv-language-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cv-language-grid .resource-item {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  text-align: center;
}

.cv-language-grid .resource-item h3 {
  margin: 0;
}

.detail-list li strong {
  display: block;
  color: var(--text);
}

.publication-group + .publication-group {
  margin-top: 1.7rem;
}

.publication-group__year {
  margin-bottom: 0.9rem;
  font-size: 1.35rem;
}

.page-heading {
  padding-bottom: 1rem;
}

.page-heading .lead {
  margin-top: 0.75rem;
}

.post-card__summary {
  color: var(--text);
}

.empty-state {
  padding: 1rem 0;
  color: var(--muted);
}

.markdown-content {
  font-size: 0.98rem;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3 {
  margin: 1.6rem 0 0.75rem;
  font-family: var(--serif);
  line-height: 1.15;
}

.markdown-content h1 {
  font-size: 2rem;
}

.markdown-content h2 {
  font-size: 1.6rem;
}

.markdown-content h3 {
  font-size: 1.28rem;
}

.markdown-content ul,
.markdown-content ol {
  margin: 0 0 1rem 1.2rem;
  padding: 0;
}

.markdown-content blockquote {
  margin: 0 0 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--line);
  color: var(--muted);
}

.markdown-content hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 1.5rem 0;
}

.markdown-content pre {
  margin: 0 0 1rem;
  padding: 1rem;
  overflow: auto;
  background: #12171d;
  color: #f4f7fb;
}

.markdown-content code {
  padding: 0.08rem 0.28rem;
  border-radius: 0.25rem;
  background: var(--surface-alt);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.94em;
}

.markdown-content pre code {
  padding: 0;
  background: transparent;
}

.not-found {
  padding-top: 3rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 340ms ease,
    transform 340ms ease;
}

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

@media (max-width: 920px) {
  .academic-layout,
  .cv-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .cv-language-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 640px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.8rem 0;
  }

  .publication-entry {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }

  .resource-item,
  .detail-list li,
  .post-card {
    padding: 0.9rem;
  }

  .cv-language-grid {
    grid-template-columns: 1fr;
  }
}

@media print {
  .site-header,
  .site-footer,
  .sidebar__links,
  .nav-button {
    display: none !important;
  }

  body {
    background: #ffffff;
  }

  .page-main {
    padding: 0;
  }

  .content-section + .content-section {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}