:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-alt: #edf3fb;
  --surface-accent: #dff0e8;
  --text: #142433;
  --muted: #5b6b7a;
  --primary: #0c4466;
  --primary-soft: #c9daf8;
  --line: rgba(12, 68, 102, 0.14);
  --shadow: 0 18px 50px rgba(12, 40, 58, 0.1);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --max-width: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(201, 218, 248, 0.65), transparent 36rem),
    radial-gradient(circle at right 10% top 18%, rgba(223, 240, 232, 0.75), transparent 24rem),
    var(--bg);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.site-shell { min-height: 100vh; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(244, 247, 251, 0.82);
  border-bottom: 1px solid rgba(12, 68, 102, 0.08);
}

.nav {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-area { display: flex; align-items: center; gap: 0.65rem; }
.brand { display: flex; flex-direction: column; align-items: flex-start; gap: 0.25rem; }
.brand-mark {
  font-size: 1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 700;
}
.language-toggle {
  border: 1px solid rgba(12, 68, 102, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.66);
  color: var(--primary);
  cursor: pointer;
  font: inherit;
  font-size: 0.72rem;
  line-height: 1;
  padding: 0.28rem 0.58rem;
}

.language-toggle:hover,
.language-toggle:focus-visible {
  background: rgba(12, 68, 102, 0.08);
}
.brand-name { font-size: 1.15rem; font-weight: 700; }
.brand-subtitle { color: var(--muted); font-size: 0.88rem; }

.nav-links { display: flex; align-items: center; gap: 0.4rem; }
.nav-links a {
  padding: 0.72rem 0.95rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.96rem;
  transition: 180ms ease;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: rgba(12, 68, 102, 0.08);
}

.nav-toggle {
  display: none;
  border: 0;
  background: var(--surface);
  color: var(--primary);
  border-radius: 999px;
  width: 46px;
  height: 46px;
  box-shadow: var(--shadow);
  font-size: 1.2rem;
}

.page {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 5rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: stretch;
  padding-top: 2rem;
}

.hero-copy,
.hero-media,
.panel,
.feature-card,
.info-card,
.publication-card,
.person-card,
.callout {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 3rem;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.hero-copy::before {
  content: "";
  position: absolute;
  inset: auto auto -4rem -4rem;
  width: 16rem;
  height: 16rem;
  border-radius: 50%;
  background: rgba(201, 218, 248, 0.55);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(12, 68, 102, 0.08);
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
  font-weight: 700;
}

.hero h1,
.page-hero h1 {
  margin: 1rem 0 1rem;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero p,
.page-hero p,
.section-intro {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.7rem;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease;
}

.button { background: var(--primary); color: #fff; }
.button-secondary {
  background: transparent;
  color: var(--primary);
  border: 1px solid rgba(12, 68, 102, 0.18);
}

.button:hover,
.button-secondary:hover { transform: translateY(-1px); }

.hero-stats {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.stat {
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(12, 68, 102, 0.08);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.stat strong {
  display: block;
  font-size: 1.35rem;
  margin-bottom: 0.3rem;
}

.stat span { color: var(--muted); font-size: 0.92rem; }

.hero-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 100%;
  position: relative;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-note {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(12, 68, 102, 0.8);
  color: #f7fbff;
  backdrop-filter: blur(12px);
}

.hero-note strong { display: block; margin-bottom: 0.25rem; }
.section { margin-top: 4rem; }

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-head h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.5rem); letter-spacing: -0.04em; }
.section-head p {
  margin: 0;
  color: var(--muted);
  max-width: 42rem;
  line-height: 1.75;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.feature-card { border-radius: var(--radius-lg); overflow: hidden; }
.feature-card img { aspect-ratio: 4 / 3; object-fit: cover; }
.feature-body { padding: 1.35rem; }

.feature-body h3,
.info-card h3,
.publication-card h3,
.person-card h3 { margin: 0 0 0.6rem; font-size: 1.2rem; }

.feature-body p,
.info-card p,
.publication-card p,
.person-card p,
.panel p,
.callout p,
.list { color: var(--muted); line-height: 1.75; }

.two-col {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.2rem;
}

.panel,
.callout,
.info-card,
.publication-card,
.person-card {
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.news-list,
.quick-list,
.pub-list { display: grid; gap: 0.95rem; }

.news-item,
.quick-item,
.pub-item {
  padding-top: 0.95rem;
  border-top: 1px solid var(--line);
}

.news-item:first-child,
.quick-item:first-child,
.pub-item:first-child { border-top: 0; padding-top: 0; }

.meta {
  display: inline-block;
  margin-bottom: 0.45rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
}

.list { margin: 0; padding-left: 1.1rem; }

.callout {
  background: linear-gradient(135deg, rgba(12, 68, 102, 0.95), rgba(17, 84, 123, 0.92));
  color: #eff7ff;
}

.callout .meta,
.callout p { color: rgba(239, 247, 255, 0.88); }

.page-hero { padding: 2.5rem 0 1rem; }

.page-grid,
.publication-grid,
.people-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.95rem;
}

.tag {
  display: inline-flex;
  padding: 0.42rem 0.72rem;
  border-radius: 999px;
  background: rgba(12, 68, 102, 0.08);
  color: var(--primary);
  font-size: 0.84rem;
}

.site-footer {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 0 0 2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.home-hero,
.home-summary,
.home-focus-item,
.home-join {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
  border-radius: var(--radius-lg);
}

.home-hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 1.5rem;
  padding: 1.5rem;
  align-items: stretch;
}

.home-hero-copy {
  padding: 1rem 1rem 1rem 0.5rem;
}

.home-kicker {
  margin: 0 0 0.75rem;
  color: var(--primary);
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-hero-copy h1 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.home-lead {
  margin: 0;
  color: var(--text);
  line-height: 1.9;
  font-size: 1.02rem;
}

.home-inline-join {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.home-inline-copy {
  margin: 0 0 0.85rem;
  color: var(--text);
  line-height: 1.9;
  font-size: 1.02rem;
}

.home-inline-copy a {
  text-decoration: underline;
}

.home-contact {
  color: var(--text);
  position: relative;
  display: inline-block;
}

.home-contact summary {
  display: inline-block;
  cursor: pointer;
  list-style: none;
  padding: 0.95rem 1.25rem;
  border-radius: 999px;
  font-weight: 400;
  background: transparent;
  color: var(--primary);
  border: 1px solid rgba(12, 68, 102, 0.18);
}

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

.home-contact p {
  position: absolute;
  top: 0;
  left: calc(100% + 0.9rem);
  min-width: 20rem;
  margin: 0;
  padding: 0.95rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(12, 68, 102, 0.12);
  box-shadow: var(--shadow);
  color: var(--muted);
}

.home-contact a {
  text-decoration: underline;
}

.home-hero-media {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.home-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.home-summary {
  margin-top: 1.5rem;
  padding: 1.3rem 1.6rem;
}

.home-summary p {
  margin: 0 0 0.6rem;
}

.home-interest-list {
  margin-bottom: 0;
}

.home-focus-list {
  margin-top: 1.5rem;
  display: grid;
  gap: 1.15rem;
}

.home-focus-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.25rem;
  padding: 1rem;
  align-items: start;
}

.home-focus-item img {
  width: 100%;
  border-radius: var(--radius-sm);
}

.home-focus-copy h2 {
  margin: 0 0 0.45rem;
  font-size: 1.1rem;
}

.home-focus-copy p {
  margin: 0 0 0.65rem;
  line-height: 1.8;
}

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

.home-paper a {
  color: var(--text);
  text-decoration: underline;
}

.home-paper span {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
}

.home-join {
  margin-top: 1.5rem;
  padding: 1.2rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.home-join h2 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.home-join p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.publications-layout {
  display: grid;
  gap: 1.25rem;
}

.publication-year-section {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 1.25rem;
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.publication-year {
  color: var(--primary);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

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

.publication-item {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

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

.publication-title {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.55;
}

.publication-title-link {
  color: inherit;
  text-decoration: none;
}

.publication-title-link:hover,
.publication-title-link:focus-visible {
  color: var(--primary);
  text-decoration: underline;
}

.publication-meta-line,
.publication-authors,
.publication-venue,
.publication-note {
  margin: 0.35rem 0 0;
  color: var(--muted);
  line-height: 1.75;
}

.publication-meta-line {
  font-size: 0.97rem;
}

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

.talk-event {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.talk-event:first-child {
  padding-top: 0;
  border-top: 0;
}

.talk-event-meta {
  margin: 0;
  color: var(--ink);
  line-height: 1.7;
  font-size: 0.98rem;
  font-weight: 600;
}

.talk-event-titles {
  display: grid;
  gap: 0.35rem;
  margin-top: 0.35rem;
}

.talk-event-title {
  margin: 0;
  color: var(--ink);
  line-height: 1.7;
}

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

.talk-title-link:hover,
.talk-title-link:focus-visible {
  text-decoration: underline;
}

[data-talks-page] .publication-year {
  color: var(--ink);
}

@media (max-width: 960px) {
  .hero,
  .two-col,
  .page-grid,
  .publication-grid,
  .people-grid,
  .home-hero,
  .home-focus-item { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .nav-links {
    position: absolute;
    top: calc(100% + 0.75rem);
    left: 1rem;
    right: 1rem;
    padding: 0.8rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(12, 68, 102, 0.08);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    align-items: stretch;
  }
  .nav-links.open { display: flex; }
  .nav-links a { border-radius: 14px; }
}

@media (max-width: 720px) {
  .page { padding-top: 1rem; }
  .hero-copy,
  .home-hero-copy,
  .panel,
  .callout,
  .info-card,
  .publication-card,
  .person-card { padding: 1.25rem; }
  .feature-grid,
  .hero-stats { grid-template-columns: 1fr; }
  .section-head {
    flex-direction: column;
    align-items: start;
  }

  .home-join {
    flex-direction: column;
    align-items: flex-start;
  }

  .home-contact {
    display: block;
  }

  .home-contact p {
    position: static;
    min-width: 0;
    margin-top: 0.85rem;
  }
}

@media (max-width: 680px) {
  .publication-year-section {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
}
.team-layout {
  display: grid;
  gap: 1.5rem;
}

.team-section {
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.team-section h2 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
}

.team-list {
  display: grid;
  gap: 0.25rem;
}

.team-entry {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.team-entry:first-child {
  border-top: 0;
  padding-top: 0.2rem;
}

.team-name {
  margin: 0;
  font-size: 1.08rem;
}

.team-role,
.team-note {
  margin: 0.28rem 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.team-note {
  font-size: 0.95rem;
}
.team-entry-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1rem;
  align-items: start;
}

.team-photo-wrap {
  width: 80px;
}

.team-photo {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid rgba(12, 68, 102, 0.1);
  background: rgba(12, 68, 102, 0.04);
}

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

.cv-hero {
  padding-bottom: 0.6rem;
}

.cv-contact {
  margin: 0.35rem 0 0;
}

.cv-contact a,
.cv-link {
  color: var(--primary);
  text-decoration: none;
}

.cv-contact a:hover,
.cv-contact a:focus-visible,
.cv-link:hover,
.cv-link:focus-visible {
  text-decoration: underline;
}

.cv-layout {
  display: grid;
  gap: 1.25rem;
}

.cv-section {
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.cv-section h2 {
  margin: 0 0 1rem;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.cv-list {
  display: grid;
  gap: 0.2rem;
}

.cv-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.cv-item:first-child {
  padding-top: 0.15rem;
  border-top: 0;
}

.cv-period {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.cv-body h3,
.cv-body p {
  margin: 0;
}

.cv-body h3 {
  font-size: 1.04rem;
}

.cv-body p {
  margin-top: 0.25rem;
  color: var(--muted);
  line-height: 1.75;
}

.cv-page {
  padding-top: 1.5rem;
}

.cv-legacy-block {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

.cv-clean {
  padding: 2rem 2.2rem;
}

.cv-profile {
  display: grid;
  justify-items: center;
  gap: 0.85rem;
  margin-bottom: 1.75rem;
}

.cv-headshot {
  width: 160px;
  max-width: 100%;
  height: auto;
}

.cv-name {
  margin: 0;
  font-size: 1.05rem;
}

.cv-section-simple + .cv-section-simple {
  margin-top: 1.4rem;
}

.cv-section-simple h2 {
  margin: 0 0 0.8rem;
  font-size: 1rem;
}

.cv-activity-list {
  margin: 0;
  padding-left: 1.2rem;
}

.cv-activity-list li {
  margin: 0 0 0.55rem;
  line-height: 1.75;
  color: var(--text);
}

.research-block {
  padding: 2rem 2.2rem;
}

.research-simple {
  max-width: 62rem;
}

.research-intro {
  margin: 0 0 1rem;
  line-height: 1.8;
  color: var(--text);
}

.research-intro-strong {
  font-weight: 700;
}

.research-interest-list {
  margin: 0 0 1.8rem 1.2rem;
  padding: 0;
}

.research-interest-list li {
  margin: 0 0 0.35rem;
}

.research-topic {
  margin-top: 1.4rem;
}

.research-topic-line {
  margin: 0 0 0.65rem;
  line-height: 1.8;
}

.research-topic-split {
  display: grid;
  grid-template-columns: 19rem 1fr;
  gap: 1.1rem;
  align-items: start;
}

.research-paper-list {
  margin: 0 0 1rem 1.2rem;
  padding-left: 1.15rem;
}

.research-paper-list li {
  margin: 0 0 0.45rem;
  color: var(--text);
  line-height: 1.7;
}

.research-paper-meta {
  margin-left: 0.5rem;
  color: var(--muted);
}

.research-paper-link {
  text-decoration: underline;
}

.research-topic-image {
  display: block;
  width: min(100%, 28rem);
  margin-top: 0.7rem;
  border-radius: 0;
}

.research-topic-image-left {
  width: 100%;
  margin-top: 0.15rem;
}

.research-paper-list-compact {
  margin: 0;
}

.joinus-block {
  padding: 2rem 2.2rem;
}

.joinus-content {
  max-width: 58rem;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text);
}

.joinus-content p {
  margin: 0 0 1.15rem;
}

.cv-split {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
  align-items: start;
}

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

.cv-copy p:last-child {
  margin-bottom: 0;
}

.joinus-list {
  margin: 0 0 1.15rem 1.4rem;
  padding: 0;
}

.joinus-list li {
  margin: 0 0 0.55rem;
}

.joinus-contact {
  margin-top: 1.35rem;
}

.joinus-contact summary {
  display: inline-flex;
  width: fit-content;
  padding: 0.45rem 0.9rem;
  border: 1px solid rgba(12, 68, 102, 0.2);
  border-radius: 999px;
  color: var(--primary);
  cursor: pointer;
  list-style: none;
}

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

.joinus-contact p {
  margin-top: 0.85rem;
}

@media (max-width: 640px) {
  .team-entry-row {
    grid-template-columns: 64px 1fr;
    gap: 0.85rem;
  }

  .team-photo-wrap,
  .team-photo {
    width: 64px;
    height: 64px;
  }

  .cv-item {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .joinus-block {
    padding: 1.25rem 1rem;
  }

  .cv-split {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .research-block {
    padding: 1.25rem 1rem;
  }

  .research-topic-split {
    grid-template-columns: 1fr;
  }
}