:root {
  --bg: #c4e6e60a;
  --surface: #ffffff;
  --text: #24211e;
  --muted: #585d68;
  --line: #566f878f;
  --accent: #325982e7;
  --accent-strong: #3a5ab0;
  --shadow: 0 10px 35px rgba(31, 30, 36, 0.08);
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  font-size: 16px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration-color: rgba(15, 118, 110, 0.45);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.22em;
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem clamp(1rem, 3vw, 2rem);
}

.brand {
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.nav-link {
  min-height: 2.25rem;
  padding: 0.42rem 0.8rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  background: var(--text);
  color: #fff;
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(2.25rem, 6vw, 4.5rem) clamp(1rem, 3vw, 2rem);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding-top: clamp(2rem, 7vw, 6rem);
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.meta {
  margin: 0 0 0.6rem;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 12ch;
  margin-bottom: 1rem;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
  line-height: 1.25;
}

.lead {
  max-width: 65ch;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  line-height: 1.7;
}

.bio-text {
  max-width: 78ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.75rem;
}

.link-row a,
.pub-links a,
.talk a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.45rem 0.78rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-weight: 650;
  font-size: 0.92rem;
  text-decoration: none;
}

.social-link {
  gap: 0.48rem;
}

.social-icon {
  width: 1.05rem;
  height: 1.05rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.link-row a:hover,
.pub-links a:hover,
.talk a:hover {
  border-color: rgba(15, 118, 110, 0.45);
  color: var(--accent);
}

.portrait {
  margin: 0;
}

.portrait img {
  width: min(100%, 300px);
  aspect-ratio: 1 / 1.12;
  border-radius: 5%;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  object-fit: cover;
}

.section-heading {
  margin-bottom: 1.5rem;
}

.section-heading.compact {
  margin-bottom: 1rem;
}

.timeline {
  border-top: 1px solid var(--line);
}

.timeline-item {
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
}

.timeline-item p:last-child,
.publication p:last-child,
.talk p:last-child {
  margin-bottom: 0;
}

.news-box {
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.news-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  display: grid;
  gap: 0.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.news-list li.with-image {
  grid-template-columns: minmax(0, 1fr) minmax(150px, 220px);
  gap: 1.25rem;
  align-items: center;
}

.news-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.news-list time,
.talk time {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.news-image-placeholder {
  display: grid;
  min-height: 76px;
  place-items: center;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.52);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.news-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 28px rgba(36, 33, 30, 0.12);
  object-fit: cover;
}

.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.tag-grid span {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.64);
  color: var(--muted);
  font-weight: 600;
}

.page-intro {
  padding-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-intro h1 {
  max-width: none;
}

.publication-list,
.talks-list {
  display: grid;
  gap: 1rem;
  padding-top: 0;
}

.publication,
.talk {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: start;
  padding: clamp(1.1rem, 3vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.publication h2,
.talk h2 {
  margin-bottom: 0.35rem;
  font-size: 1.22rem;
}

.talk-title {
  margin-bottom: 0.25rem;
  color: var(--text);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.35;
}


.talk-meta {
  color: var(--muted);
}

.authors {
  color: var(--accent);
  font-weight: 600;
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem;
}

.talk {
  grid-template-columns: 150px minmax(0, 1fr);
  align-items: center;
}

.talk-with-type {
  grid-template-columns: 150px minmax(0, 1fr) 150px;
}

.talk-type {
  justify-self: end;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 3vw, 2rem) 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 780px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
  }

  .hero,
  .publication,
  .talk {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 1.25rem;
  }

  .portrait {
    order: -1;
  }

  .portrait img {
    width: min(100%, 260px);
  }

  .pub-links {
    justify-content: flex-start;
  }

  .talk {
    gap: 0.75rem;
  }

  .talk-type {
    justify-self: start;
  }

  .news-list li.with-image {
    grid-template-columns: 1fr;
  }

  .news-image {
    max-width: 320px;
  }
}

@media (max-width: 460px) {
  .nav-link {
    padding-inline: 0.68rem;
    font-size: 0.9rem;
  }

  h1 {
    font-size: clamp(2.55rem, 16vw, 3.5rem);
  }

  .link-row a,
  .pub-links a,
  .talk a {
    width: auto;
  }
}