:root {
  --bg: #eef2f7;
  --surface: rgba(252, 253, 255, 0.92);
  --surface-soft: rgba(242, 246, 251, 0.9);
  --line: #c8d2de;
  --line-strong: #91a4bc;
  --text: #18202b;
  --muted: #5d6b7c;
  --accent: #234c7a;
  --accent-soft: #d9e5f1;
  --max-width: 1140px;
  --font-sans: "Avenir Next", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", "Noto Serif JP", "Yu Mincho", serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(251, 253, 255, 0.96), rgba(238, 242, 247, 0.98)),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.8;
}

html {
  scroll-behavior: smooth;
}

a {
  color: var(--accent);
}

p,
ul,
ol,
dl,
h1,
h2 {
  margin: 0;
}

p,
li,
dd {
  text-wrap: pretty;
}

.site-shell {
  width: min(calc(100% - 3rem), var(--max-width));
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: 2.75rem;
  padding: 1rem 0.6rem 1.2rem;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 248, 252, 0.94);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 24px rgba(26, 42, 66, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  font-family: var(--font-serif);
  font-size: 0.92rem;
}

.brand-text strong {
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-top: 0;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.site-nav a.is-current {
  color: var(--text);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.3em;
}

.hero,
.section-grid,
.detail-grid,
.feature-grid,
.subpage-main,
.section-anchor {
  display: grid;
  gap: 1.4rem;
}

.section-anchor {
  scroll-margin-top: 6.5rem;
}

.hero {
  grid-template-columns: minmax(0, 1fr);
}

.hero-panel,
.page-intro,
.card,
.content-band,
.feature-card {
  padding: 1.5rem;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 18px 40px rgba(61, 38, 20, 0.04);
}

.hero-panel,
.page-intro,
.card,
.content-band {
  background: rgba(252, 253, 255, 0.9);
}

.card-muted {
  background: rgba(246, 249, 252, 0.86);
}

.hero h1,
.page-intro h1,
.card h2,
.band-header h2 {
  margin-bottom: 0.75rem;
  font-family: var(--font-serif);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero h1 {
  max-width: none;
  font-size: clamp(3rem, 5.8vw, 4.8rem);
  margin-bottom: 1rem;
  text-wrap: balance;
}

.hero-name {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.hero-name-main {
  display: block;
}

.hero-name-sub {
  display: block;
  color: var(--muted);
  font-size: 0.4em;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.inline-note {
  color: var(--muted);
  font-size: 0.8em;
  font-weight: 500;
  letter-spacing: 0;
}

.block-note {
  display: block;
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.page-intro h1 {
  font-size: clamp(2.25rem, 4vw, 3.2rem);
}

.page-intro .lead {
  max-width: 56rem;
}

.card h2,
.band-header h2 {
  font-size: 1.45rem;
}

.eyebrow,
.section-tag,
.panel-label {
  margin-bottom: 0.4rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.info-copy > .panel-label:not(:first-of-type) {
  margin-top: 1.2rem;
}

.lead,
.feature-card span,
.card p,
.policy-list,
.publication-list,
.muted {
  color: var(--muted);
}

.lead {
  max-width: 42rem;
  color: #243142;
  font-size: 1.06rem;
}

.compact-lead {
  margin-top: 0.15rem;
  max-width: 46rem;
}

.lead-note {
  margin-top: 0.1rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  margin-top: 1.25rem;
  margin-bottom: 1.5rem;
}

.inline-links a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.24em;
}

.inactive-link {
  color: var(--muted);
  text-decoration: none;
  opacity: 0.8;
  pointer-events: none;
  cursor: default;
}

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.7rem;
  padding-left: 0;
  margin: 0;
  list-style: none;
}

.topic-list li {
  color: var(--text);
  font-size: 0.98rem;
}

.topic-list li + li::before {
  content: "/";
  margin-right: 0.7rem;
  color: var(--line-strong);
}

.fact-list,
.stacked-list,
.timeline {
  display: grid;
  gap: 0.75rem;
}

.info-split {
  display: grid;
  gap: 1rem;
}

.info-copy {
  min-width: 0;
}

.info-photo {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: flex-start;
  align-items: start;
}

.photo-links .inline-links {
  margin-top: 0.6rem;
  margin-bottom: 0;
}

.profile-photo {
  display: block;
  width: min(100%, 208px);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center 36%;
  margin-bottom: 0;
  border: 4px solid rgba(252, 253, 255, 0.94);
  border-radius: 50%;
  box-shadow: 0 18px 36px rgba(28, 48, 76, 0.14);
}

.fact-list div,
.stacked-list div {
  display: grid;
  gap: 0.15rem;
}

.fact-list dt,
.stacked-list dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fact-list dd,
.stacked-list dd {
  color: var(--text);
  font-size: 1.03rem;
}

.detail-grid.single-column {
  grid-template-columns: minmax(0, 1fr);
}

.content-band {
  display: grid;
  gap: 1.1rem;
  margin-top: 1.6rem;
}

.band-header {
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.feature-grid {
  grid-template-columns: minmax(0, 1fr);
}

.feature-card {
  display: grid;
  gap: 0.45rem;
  color: inherit;
  text-decoration: none;
  background: var(--surface-soft);
  border-left: 3px solid var(--accent);
}

.feature-card strong {
  font-size: 1.06rem;
  font-family: var(--font-serif);
}

.timeline div {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 0.35rem 1rem;
  align-items: start;
}

.timeline-year {
  color: var(--muted);
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}

.timeline p {
  margin-left: 0;
  color: var(--text);
}

.tag-list,
.policy-list {
  padding-left: 1.2rem;
}

.tag-list li,
.policy-list li,
.publication-list li {
  margin-bottom: 0.4rem;
}

.publication-list {
  padding-left: 1.2rem;
  color: var(--text);
}

.author-highlight {
  text-decoration: underline;
  text-underline-offset: 0.14em;
  text-decoration-thickness: 0.08em;
}

.stacked-items {
  display: grid;
  gap: 0.75rem;
  list-style: none;
  padding-left: 0;
}

.stacked-items li {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.empty-item {
  color: var(--muted);
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line-strong);
  color: var(--muted);
}

.footer-meta {
  margin-top: 0.25rem;
  font-size: 0.9rem;
}

@media (min-width: 900px) {
  .info-split {
    grid-template-columns: minmax(0, 1.6fr) 224px;
    align-items: start;
  }

  .info-photo {
    justify-content: flex-end;
  }

  .detail-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-grid.single-column {
    grid-template-columns: minmax(0, 1fr);
  }

  .feature-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(calc(100% - 1rem), var(--max-width));
    padding-top: 1.5rem;
  }

  .nav-toggle {
    display: inline-block;
    margin-top: 0;
    margin-left: auto;
    padding: 0.45rem 0.8rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 252, 247, 0.95);
    color: var(--text);
    font: inherit;
  }

  .site-nav {
    display: none;
    flex-direction: column;
    gap: 0.6rem;
    width: 100%;
    margin-top: 0.5rem;
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero h1 {
    font-size: 2.7rem;
  }

  .page-intro h1 {
    font-size: 2rem;
  }

  .timeline div {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.2rem;
  }
}