:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --ink: #182033;
  --muted: #5e687c;
  --line: #dfe4ec;
  --accent: #2563eb;
  --accent-soft: #e8efff;
  --chip: #eef2f7;
  --max: 980px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(223, 228, 236, 0.8);
  background: rgba(247, 248, 251, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.brand {
  font-weight: 750;
  color: var(--ink);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
}

.nav-links a {
  color: var(--muted);
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 52px 24px 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 42px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: 44px;
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin: 42px 0 18px;
  font-size: 24px;
  line-height: 1.25;
}

h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.subtitle {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 19px;
}

.summary {
  margin-top: 28px;
  font-size: 17px;
}

.side-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 18px 48px rgba(24, 32, 51, 0.06);
}

.info-list {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 14px;
}

.info-list li + li {
  margin-top: 10px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--chip);
  color: #334155;
  font-size: 13px;
}

.section {
  margin-top: 48px;
}

.publication-year {
  margin-top: 44px;
}

.timeline,
.pub-list {
  display: grid;
  gap: 14px;
}

.pub-list.numbered {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: publications;
}

.pub-list.numbered .item {
  position: relative;
  counter-increment: publications;
  padding-left: 62px;
}

.pub-list.numbered .item::before {
  content: counter(publications);
  position: absolute;
  top: 18px;
  left: 20px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 750;
}

.item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 20px;
}

.meta {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 14px;
}

.pub-title {
  margin: 0;
  font-weight: 700;
}

.authors {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.venue {
  display: inline-flex;
  margin-right: 8px;
  color: var(--accent);
  font-weight: 750;
}

.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

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

  h1 {
    font-size: 34px;
  }

  main {
    padding-top: 34px;
  }
}