* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --subtext: #5b6472;
  --line: #e5e7eb;
  --accent: #1f4b8f;
  --accent-soft: #eaf1fb;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
}

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

a:hover {
  text-decoration: underline;
}

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

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
  flex-wrap: wrap;
}

.brand h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
}

.tagline {
  margin: 6px 0 0;
  color: var(--subtext);
  font-size: 15px;
}

.nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.nav a {
  font-size: 14px;
  font-weight: 600;
  color: #334155;
}

.hero {
  padding: 56px 0 36px;
  background: linear-gradient(180deg, #eef4ff 0%, #f5f7fb 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-text h2 {
  margin: 0 0 14px;
  font-size: 42px;
  line-height: 1.15;
}

.hero-summary {
  margin: 0 0 24px;
  font-size: 17px;
  color: #374151;
  max-width: 680px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.contact-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
}

.contact-label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--subtext);
}

.hero-image {
  display: flex;
  justify-content: center;
}

.hero-image img {
  width: 240px;
  height: 240px;
  object-fit: cover;
  border-radius: 22px;
  border: 6px solid #fff;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.14);
}

.main-content {
  padding: 18px 0 56px;
}

.section-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 30px;
  margin-bottom: 22px;
  box-shadow: var(--shadow);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
}

.entry-list {
  display: grid;
  gap: 16px;
}

.entry {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.entry:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.entry h3 {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.4;
}

.entry p {
  margin: 0;
  color: var(--subtext);
}

.entry-meta {
  white-space: nowrap;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 10px;
  border-radius: 999px;
}

.entry.stacked {
  padding: 18px 0;
}

.pub-group + .pub-group {
  margin-top: 28px;
}

.pub-group h3 {
  margin: 0 0 14px;
  font-size: 20px;
  color: #0f172a;
}

.pub-item {
  border-left: 4px solid var(--accent);
  background: #fbfcff;
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 14px;
}

.pub-item:last-child {
  margin-bottom: 0;
}

.pub-title {
  margin: 0 0 8px;
  font-weight: 700;
  line-height: 1.5;
}

.pub-authors {
  margin: 0 0 6px;
  color: #475569;
}

.pub-venue {
  margin: 0;
  color: var(--subtext);
  font-size: 15px;
}

.muted {
  color: var(--subtext);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #ffffff;
}

.site-footer p {
  margin: 0;
  padding: 22px 0;
  text-align: center;
  color: var(--subtext);
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-image {
    justify-content: flex-start;
  }

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

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

  .entry-meta {
    white-space: normal;
  }
}

@media (max-width: 640px) {
  .brand h1 {
    font-size: 26px;
  }

  .hero-text h2 {
    font-size: 34px;
  }

  .section-card {
    padding: 22px;
  }

  .section-heading h2 {
    font-size: 24px;
  }

  .nav {
    gap: 12px;
  }
}

.pub-title a {
  color: inherit;
  text-decoration: none;
}

.pub-title a:hover {
  color: var(--accent);
  text-decoration: underline;
}