:root {
  color-scheme: light;
  --paper: #f8f5ec;
  --ink: #263b34;
  --text: #383c32;
  --muted: #5c6254;
  --line: #d5d5c6;
  --accent: #894e3a;
  --wash: #edf0e6;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif CJK JP", "Noto Serif JP", serif;
  --sans: "Hiragino Sans", "Yu Gothic", "Noto Sans CJK JP", "Noto Sans JP", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-padding-top: 1.5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(ellipse at 86% 8%, #f1e8d8 0%, transparent 32rem),
    var(--paper);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.8;
}

a {
  color: var(--ink);
  text-underline-offset: 0.24em;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

h1, h2, h3 {
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.55;
  text-wrap: pretty;
}

p, figure { margin: 0; }
img { display: block; max-width: 100%; height: auto; }
svg { display: block; width: 100%; height: auto; }

.site-shell {
  width: min(100% - 6rem, 70rem);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  z-index: 2;
  inset: 0 auto auto 0;
  padding: 0.5rem 1rem;
  transform: translateY(-110%);
  background: var(--paper);
}

.skip-link:focus { transform: translateY(0); }

.site-header { border-bottom: 1px solid var(--line); }

.masthead {
  min-height: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  display: block;
  width: 2.65rem;
  color: var(--ink);
  border: 1px solid #b7c1ac;
  border-radius: 50%;
  background: #e9eee3;
}

.brand-name {
  font-family: var(--serif);
  font-size: 1.32rem;
  letter-spacing: 0.07em;
  font-weight: 700;
  white-space: nowrap;
}

.brand-edition {
  margin-left: 0.85rem;
  padding-left: 0.85rem;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.71rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  vertical-align: 0.15em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 3vw, 2.65rem);
  font-size: 0.85rem;
  letter-spacing: 0.035em;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover, .footer-inner a:hover, .archive-back:hover { text-decoration: underline; }

.site-nav a span, .footer-inner > a span {
  margin-left: 0.35em;
  color: var(--accent);
}

.front {
  display: grid;
  grid-template-columns: 0.87fr 1.13fr;
  gap: clamp(2rem, 5vw, 5.5rem);
  align-items: center;
  padding-block: clamp(3rem, 6.5vw, 6.25rem) 2.1rem;
}

.front-lead { padding-bottom: 1rem; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7em;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.15em;
}

.eyebrow > span {
  width: 0.55em;
  height: 0.55em;
  flex: none;
  border: 1px solid currentColor;
  transform: rotate(45deg);
}

.front h1 {
  margin: 0.9rem 0 1.55rem;
  font-size: clamp(2.15rem, 4.1vw, 3.65rem);
  line-height: 1.33;
  letter-spacing: 0.055em;
}

.front-intro {
  max-width: 25rem;
  font-size: clamp(0.9rem, 1.6vw, 1.04rem);
  line-height: 2.02;
  letter-spacing: 0.045em;
}

.front-art { position: relative; }

.front-art img {
  width: 100%;
  aspect-ratio: 1.43;
  object-fit: cover;
  padding: 0.48rem;
  border: 1px solid #c9c3ae;
  background: #fcf8ed;
  box-shadow: 0 12px 30px -21px #6a573a99;
}

.front-art svg {
  width: 6rem;
  margin-inline: auto;
  color: #71856c;
}

figcaption {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.73rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
}

.front-art figcaption { text-align: right; }

.feature-strip {
  display: grid;
  grid-template-columns: minmax(9rem, 0.27fr) 1fr;
  align-items: center;
  gap: 0.6rem 1.5rem;
  border-top: 1px solid #a7afa0;
  border-bottom: 1px solid #a7afa0;
}

.feature-strip > p { align-self: center; }

.feature-strip a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 5rem;
  padding-block: 1rem;
  text-decoration: none;
}

.feature-strip h2 {
  margin: 0;
  font-size: clamp(1.05rem, 2.1vw, 1.53rem);
}

.arrow {
  display: grid;
  flex: none;
  width: 2.55rem;
  height: 2.55rem;
  place-items: center;
  border: 1px solid #b4beac;
  border-radius: 50%;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.11rem;
  line-height: 1;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

a:hover > .arrow {
  transform: translateX(0.18rem);
  background: var(--ink);
  color: var(--paper);
}

.feature-strip a:hover h2, .archive-row a:hover h3 { text-decoration: underline; text-underline-offset: 0.25em; }

.archive {
  display: grid;
  grid-template-columns: minmax(10.5rem, 0.34fr) 1fr;
  gap: 1.5rem 2rem;
  padding-block: clamp(3rem, 7vw, 6rem);
}

.section-lead h2 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.75rem, 3vw, 2.3rem);
}

.section-lead p {
  color: var(--muted);
  font-size: 0.86rem;
}

.archive-list {
  padding: 0;
  margin: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.archive-row { border-bottom: 1px solid var(--line); }

.archive-row a {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  gap: 0.7rem 1.1rem;
  align-items: center;
  padding-block: 1.3rem;
  text-decoration: none;
}

.archive-number {
  align-self: start;
  padding-top: 0.13rem;
  color: var(--accent);
  font-family: Georgia, serif;
  font-size: 1.02rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.07em;
}

.archive-text { min-width: 0; }
.archive-text h3 {
  margin: 0.35rem 0 0.28rem;
  font-size: clamp(1.02rem, 1.8vw, 1.23rem);
}

.archive-text p {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.75;
}

.category {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.095em;
}

.site-footer {
  padding-block: 2.3rem;
  border-top: 1px solid #c7ccbd;
  background: #eef0e6;
}

.footer-inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 0.8rem 2rem;
}

.footer-brand {
  font: 600 1.1rem var(--serif);
  letter-spacing: 0.08em;
  text-decoration: none;
}

.footer-brand span {
  margin-left: 0.65em;
  font: 0.75rem var(--sans);
  color: var(--muted);
}

.footer-inner p {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.footer-inner > a { font-size: 0.79rem; text-decoration: none; }

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.8em;
  min-height: 3.8rem;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

.breadcrumbs a { text-decoration-thickness: 1px; }
.reading-article { padding-bottom: clamp(3rem, 7vw, 6rem); }

.article-header {
  max-width: 49rem;
  margin: clamp(1.45rem, 5vw, 3.5rem) auto 2rem;
}

.article-header h1 {
  margin: 0.72rem 0 0.9rem;
  font-size: clamp(1.84rem, 4.35vw, 3.42rem);
  line-height: 1.45;
  letter-spacing: 0.045em;
}

.article-deck {
  max-width: 41rem;
  color: var(--muted);
  font-size: clamp(0.9rem, 1.7vw, 1.03rem);
  line-height: 1.92;
}

.byline {
  margin-top: 1.15rem;
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.055em;
}

.article-cover {
  max-width: 49rem;
  margin: 0 auto 2.7rem;
}

.article-cover img {
  width: 100%;
  max-height: 28rem;
  object-fit: cover;
  object-position: center;
  padding: 0.4rem;
  border: 1px solid #cbc4ad;
  background: #fcf8ed;
}

.letter-mark {
  display: grid;
  place-items: center;
  max-width: 49rem;
  margin: 0 auto 2.7rem;
  min-height: clamp(4.5rem, 12vw, 7rem);
  border-block: 1px solid #cdd3c0;
  background: linear-gradient(105deg, #edf0e6, #f2e9d9);
  color: #78866d;
}

.letter-mark svg { width: 3.2rem; }

.reading-grid {
  display: grid;
  grid-template-columns: minmax(10.5rem, 13.5rem) minmax(0, 42rem);
  gap: 1.7rem clamp(2rem, 5vw, 5rem);
  justify-content: center;
  align-items: start;
}

.article-aside {
  position: sticky;
  top: 1.2rem;
}

.toc {
  border-top: 1px solid #a8b39e;
  border-bottom: 1px solid var(--line);
  padding-block: 0.8rem 0.7rem;
}

.toc-title {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.84rem;
  letter-spacing: 0.14em;
}

.toc ol {
  margin: 0.45rem 0 0;
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.toc li + li { border-top: 1px solid #e0e0d3; }
.toc a { display: block; padding: 0.5rem 0; text-decoration: none; }
.toc a:hover { text-decoration: underline; }

.prose {
  grid-column: 2;
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: clamp(0.99rem, 1.85vw, 1.08rem);
  line-height: 2;
  letter-spacing: 0.025em;
}

.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose p { margin: 0 0 1.27em; }

.prose h2 {
  margin: 2.6em 0 0.9em;
  padding-top: 0.6em;
  border-top: 1px solid var(--line);
  font-size: clamp(1.24rem, 2.8vw, 1.72rem);
  scroll-margin-top: 0.75rem;
}

.prose h3 {
  margin: 1.75em 0 0.65em;
  font-size: clamp(1.04rem, 2.2vw, 1.29rem);
}

.prose a {
  text-decoration-color: #768476;
  text-decoration-thickness: 1px;
}

.prose a:hover { color: var(--accent); }
.prose ol, .prose ul { padding-left: 1.35em; }
.prose li + li { margin-top: 0.42em; }
.prose figure { margin-block: 1.5rem; }

.prose blockquote, .prose .example {
  margin: 1.4rem 0;
  padding: 0.9rem 1.2rem;
  border-left: 2px solid #83947d;
  background: var(--wash);
}

.prose blockquote p:last-child, .prose .example p:last-child { margin-bottom: 0; }

.prose .article-link {
  margin: 1.2rem 0 1.5rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid #bfcabb;
  border-bottom: 1px solid #bfcabb;
}

.related {
  max-width: 49rem;
  margin: 3.3rem auto 0;
  padding: 1.35rem clamp(1rem, 3.5vw, 1.75rem);
  border-top: 1px solid #acb6a1;
  background: var(--wash);
}

.related h2 {
  margin: 0;
  font-size: 1.12rem;
}

.related a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  padding-top: 0.55rem;
  font-size: 0.89rem;
  text-decoration: none;
}

.related a:hover { text-decoration: underline; }

.archive-back {
  display: block;
  max-width: 49rem;
  margin: 1.5rem auto 0;
  text-decoration: none;
  font-size: 0.82rem;
}

@media (max-width: 52rem) {
  .site-shell { width: min(100% - 3rem, 70rem); }
  .front { gap: 1.6rem; }
  .front h1 { font-size: clamp(1.78rem, 4.65vw, 2.45rem); }
  .reading-grid { grid-template-columns: minmax(0, 42rem); }
  .article-aside { position: static; }
  .toc ol { display: grid; grid-template-columns: 1fr 1fr; column-gap: 1.5rem; }
  .toc li + li { border-top: 0; }
  .prose { grid-column: 1; }
}

@media (max-width: 38rem) {
  .site-shell { width: calc(100% - 2.5rem); }
  .masthead { min-height: 4.1rem; gap: 0.4rem; }
  .brand { gap: 0.45rem; }
  .brand-name { font-size: 1.06rem; }
  .brand-mark { width: 2rem; }
  .brand-edition { display: block; border: 0; margin: 0; padding: 0; line-height: 1.1; font-size: 0.62rem; }
  .site-nav { gap: 0.7rem; font-size: 0.72rem; }
  .front { grid-template-columns: 1fr; gap: 1.35rem; padding-block: 2.15rem 1.3rem; }
  .front-lead { padding-bottom: 0; }
  .front h1 { margin: 0.65rem 0 0.85rem; font-size: clamp(2.15rem, 8vw, 3rem); }
  .front-art img { aspect-ratio: 1.5; padding: 0.3rem; }
  .feature-strip { grid-template-columns: 1fr; gap: 0; padding-top: 0.65rem; }
  .feature-strip a { min-height: 3.25rem; padding-block: 0.28rem 0.63rem; }
  .arrow { width: 2.15rem; height: 2.15rem; }
  .archive { grid-template-columns: 1fr; gap: 1rem; padding-block: 2.6rem; }
  .archive-row a { grid-template-columns: 1.35rem 1fr auto; column-gap: 0.65rem; }
  .archive-number { font-size: 0.84rem; }
  .footer-inner { align-items: start; flex-direction: column; }
  .breadcrumbs { min-height: 3.15rem; }
  .article-header { margin-top: 1.05rem; }
  .article-cover, .letter-mark { margin-bottom: 1.55rem; }
  .toc ol { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .arrow { transition: none; }
}