:root {
  --text-color: #20252b;
  --muted-color: #5b6570;
  --link-color: #1769aa;
  --border-color: #e3e7eb;
  --surface-color: #f7f8fa;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: var(--link-color);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.14em;
}

a:hover,
a:focus {
  color: #0d4f82;
}

.site-navbar {
  background: #fff;
  border-bottom: 1px solid var(--border-color);
}

.site-navbar .navbar-brand {
  color: var(--text-color);
  font-weight: 650;
  letter-spacing: 0.01em;
}

.site-navbar .nav-link[aria-current="page"] {
  color: var(--text-color);
  font-weight: 600;
}

.site-main {
  min-height: calc(100vh - 150px);
  padding: 3rem 0 4rem;
}

.content-column {
  max-width: 800px;
}

.content-wide {
  max-width: 940px;
}

h1,
h2,
h3 {
  color: #171b1f;
  line-height: 1.25;
}

h1 {
  font-size: clamp(1.65rem, 2.5vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.55rem;
}

h2 {
  font-size: 1.4rem;
  font-weight: 650;
  margin: 2.35rem 0 0.85rem;
}

h3 {
  font-size: 1.05rem;
  font-weight: 650;
  margin: 1.35rem 0 0.45rem;
}

.identity-line {
  font-size: 1.14rem;
  margin-bottom: 0.2rem;
}

.affiliation-line {
  color: var(--muted-color);
  font-size: 1.05rem;
}

.contact-details {
  color: var(--muted-color);
  font-style: normal;
  margin: 1.25rem 0 0;
}

.people-list {
  margin-bottom: 0.75rem;
  padding-left: 1.25rem;
}

.page-intro {
  color: var(--muted-color);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.research-section {
  margin-top: 2.5rem;
}

.research-section h2 {
  margin-top: 0;
}

.publication-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.publication-item {
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0 1.1rem;
}

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

.publication-item:last-child {
  border-bottom: 0;
}

.publication-title,
.publication-authors,
.publication-venue,
.publication-note {
  margin: 0;
}

.publication-title {
  font-weight: 600;
  line-height: 1.45;
}

.publication-authors {
  margin-top: 0.18rem;
}

.publication-venue,
.publication-note {
  color: var(--muted-color);
  font-size: 0.96rem;
}

.publication-note {
  font-style: italic;
  margin-top: 0.1rem;
}

.site-footer {
  background: var(--surface-color);
  border-top: 1px solid var(--border-color);
  color: var(--muted-color);
  font-size: 0.9rem;
  padding: 1.25rem 0;
}

@media (max-width: 767.98px) {
  .site-main {
    padding: 2.25rem 0 3rem;
  }

  h2 {
    margin-top: 2rem;
  }

  .site-navbar .navbar-nav {
    padding: 0.65rem 0 0.35rem;
  }
}