:root {
  --background: #ffffff;
  --text: #1d1d1f;
  --muted: #606064;
  --link: #2455a4;
  --max-width: 960px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--link);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 3px;
}

.site-header,
main,
footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.wordmark {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 64px;
  align-items: center;
  padding-block: 80px;
}

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

h1 {
  margin-bottom: 4px;
  font-size: clamp(36px, 5vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.025em;
}

h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.25;
}

h3 {
  margin-bottom: 8px;
  font-size: 18px;
  line-height: 1.4;
}

.intro {
  max-width: 660px;
  margin-bottom: 24px;
  font-size: 18px;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 14px;
}

.portrait-wrap {
  margin: 0;
}

.portrait {
  display: block;
  width: 100%;
  height: 290px;
  object-fit: cover;
  object-position: 50% 63%;
  border-radius: 4px;
}

section:not(.hero) {
  padding-block: 64px;
  scroll-margin-top: 24px;
}

.section-heading {
  margin-bottom: 32px;
}

.service-content > p {
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 36px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px 96px minmax(0, 1fr);
  gap: 16px;
  padding-block: 0;
}

.timeline-meta {
  color: var(--muted);
  font-size: 13px;
}

.timeline-meta p {
  margin-bottom: 2px;
}

.timeline-item h3 {
  margin-bottom: 2px;
}

.organization {
  margin-bottom: 10px;
  color: #444448;
  font-weight: 500;
}

.timeline-logo {
  display: flex;
  width: 96px;
  height: 56px;
  align-items: center;
  justify-content: center;
}

.timeline-logo--joint {
  gap: 8px;
}

.organization-icon {
  display: block;
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.organization-icon--wordmark {
  width: 92px;
  height: 44px;
}

.organization-icon--sind-symbol {
  display: block;
  width: 52px;
  height: 52px;
  overflow: hidden;
}

.organization-icon--sind-symbol img {
  display: block;
  width: auto;
  max-width: none;
  height: 52px;
}

.organization-icon--joint {
  width: 42px;
  height: 52px;
}

.timeline-item > div > p:last-child {
  margin-bottom: 0;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
}

.highlight-item h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

.highlight-item > p:not(.highlight-rank) {
  color: var(--muted);
}

.highlight-rank {
  margin-bottom: 6px;
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
}

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

.highlight-links a {
  font-size: 14px;
}

.publication-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
}

.publication-heading > a {
  font-size: 14px;
}

.publication-groups {
  display: grid;
  gap: 44px;
}

.publication-year-group {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 32px;
}

.publication-year {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  font-weight: 600;
}

.publication-list {
  display: grid;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.publication-list p {
  margin-bottom: 0;
}

.publication-list strong {
  font-weight: 600;
}

.publication-links {
  display: flex;
  gap: 16px;
  margin-top: 4px;
  font-size: 14px;
}

.service-content {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 48px;
}

.service-content ul {
  margin: 0;
  padding-left: 20px;
}

.service-content li {
  margin-bottom: 8px;
}

.award-content {
  margin-top: 36px;
}

.award-content h3 {
  margin-bottom: 6px;
  font-size: 28px;
  line-height: 1.25;
}

.award-content p {
  margin-bottom: 0;
}

footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  padding-block: 40px;
  color: var(--muted);
  font-size: 13px;
}

footer p {
  margin-bottom: 0;
}

@media (max-width: 720px) {
  .site-header,
  main,
  footer {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .site-header {
    flex-wrap: wrap;
    gap: 8px 20px;
    padding-block: 16px;
  }

  nav {
    width: 100%;
    gap: 10px 18px;
    overflow-x: auto;
    padding-bottom: 2px;
    white-space: nowrap;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-block: 56px;
  }

  .portrait-wrap {
    order: -1;
    width: 180px;
  }

  .portrait {
    height: 220px;
  }

  .service-content {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .highlight-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .timeline-item {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 10px 12px;
  }

  .timeline-logo {
    width: 72px;
  }

  .organization-icon--wordmark {
    width: 68px;
  }

  .organization-icon--joint {
    width: 30px;
  }

  .timeline-meta {
    grid-column: 1 / -1;
  }

  .publication-year-group {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  footer {
    grid-template-columns: 1fr auto;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}