/* Hallmark · shape: Ecosystem Index · genre: editorial · theme: Editorial (deal 2/3, seed japanese-research-editorial-blog-810e) · job: read · draw: cfe79c
 * hero: Banner · nav: slab masthead · footer: mast colophon · imagery: AI-generated editorial research desk · signature: Japanese research questions at journal scale
 * axes: light/gothic-heavy/chromatic-green · posture: restrained · surface: absolute · contrast: static pass · fold: browser checked · v2.0.0 */
/* Hallmark · pre-emit critique: P4 H5 E4 S4 R5 V4 · weakest: S, replaced generic AI promises with a sourced research-question index */
/* Hallmark · waive 7b · surface: absolute, explicit white-page brief · this Japanese research journal uses white paper because its publisher requested a white page */
/* Hallmark · waive 59 · dense Ecosystem Index separated by rules and colour · this research journal groups article navigation without marketing-sized gaps between every entry */
/* Hallmark · hero-review: in-thread ship · finish-review: in-thread fix · mobile heading and article-title line breaks resolved; publisher and domain pending */
/* Hallmark · answered F6 · the empty-state h2 is a Japanese message, not a numeric figure; headings retain tabular numerals regardless */
@import url("./tokens.css");
@import url("./base.css");

@font-face { font-family: "Yoha Gothic"; src: url("./fonts/yoha-gothic.woff2") format("woff2"); font-style: normal; font-weight: 700; font-display: swap; }
@font-face { font-family: "Yoha Mincho"; src: url("./fonts/yoha-mincho.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
:root {
  --font-display: "Yoha Gothic", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-body: "Yoha Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-label: var(--font-display);
  --color-paper: #ffffff;
  --color-paper-2: oklch(97% 0.006 152);
  --color-paper-3: oklch(94% 0.010 152);
  --color-ink: oklch(20% 0.014 152);
  --color-ink-2: oklch(31% 0.012 152);
  --color-muted: oklch(45% 0.012 152);
  --color-rule: oklch(82% 0.010 152);
  --color-rule-2: oklch(58% 0.012 152);
  --color-accent: oklch(40% 0.095 152);
  --color-accent-ink: var(--color-paper);
  --color-focus: oklch(40% 0.095 152);
  --color-transparent: transparent;
  --container: 1376px;
  --gutter: 64px;
  --display-weight: 700;
  --tracking-display: -0.035em;
  --text-display: clamp(2.875rem, 6.1vw, 5.75rem);
  --text-section: clamp(1.8rem, 3vw, 2.9rem);
  --text-title: clamp(1.3rem, 1.8vw, 1.75rem);
  --space-optic: 6px;
  --space-inset: 32px;
  --space-section: 112px;
}
html { scroll-behavior: smooth; }
body { font-size: 17px; line-height: 1.85; line-break: strict; word-break: normal; overflow-wrap: break-word; }
h1, h2, h3 { line-height: 1.35; font-feature-settings: "palt"; text-wrap: balance; font-variant-numeric: lining-nums tabular-nums; }
a { text-decoration-color: var(--color-rule-2); }
a:hover { text-decoration-color: var(--color-accent); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 4px; }
a:active { text-decoration-thickness: 2px; }
.skip { position: absolute; left: var(--space-md); top: calc(-1 * var(--space-3xl)); z-index: var(--z-toast); padding: var(--space-xs) var(--space-md); background: var(--color-ink); color: var(--color-paper); font-family: var(--font-label); }
.skip:focus-visible { top: var(--space-md); }
.site-header { padding-top: var(--space-lg); }
.masthead { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); padding-bottom: var(--space-lg); }
.wordmark { display: inline-flex; align-items: center; gap: var(--space-sm); font-family: var(--font-display); font-size: 32px; line-height: 1.3; letter-spacing: -0.04em; text-decoration: none; white-space: nowrap; }
.brand-square { width: 9px; height: 9px; background: var(--color-accent); }
.mast-note { font-size: 14px; font-family: var(--font-label); color: var(--color-muted); }
.nav-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); border-top: 4px solid var(--color-ink); border-bottom: 1px solid var(--color-rule); min-height: 58px; }
.nav-bar nav { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-inset); }
.nav-bar a { min-height: 48px; display: inline-flex; align-items: center; font-family: var(--font-label); font-size: 14px; text-decoration: none; border-bottom: 2px solid var(--color-transparent); }
.nav-bar a:hover, .nav-bar a[aria-current="page"] { border-bottom-color: var(--color-accent); }
.publisher-link { color: var(--color-muted); }
.mobile-menu { display: none; font-family: var(--font-label); }
.hero { padding-top: var(--space-2xl); padding-bottom: var(--space-2xl); }
.hero h1 { max-width: 16ch; line-height: 1.24; letter-spacing: -0.05em; }
.hero-bottom { display: flex; align-items: center; justify-content: space-between; gap: var(--space-xl); margin-top: var(--space-xl); }
.hero .lead { font-size: 20px; max-width: 40ch; line-height: 1.8; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: var(--space-sm) var(--space-lg); border: 1px solid var(--color-ink); background: var(--color-ink); color: var(--color-paper); font-family: var(--font-label); font-size: 15px; line-height: 1.5; text-decoration: none; cursor: pointer; flex-shrink: 0; }
.button:hover { background: var(--color-ink-2); }
.button:active { transform: translateY(1px); }
.button:disabled, .button[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }
.button[aria-busy="true"] { cursor: progress; }
.section-top { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-lg); border-top: 4px solid var(--color-ink); padding-top: var(--space-lg); margin-bottom: var(--space-xl); }
.section-top > a { flex-shrink: 0; font-family: var(--font-label); font-size: 14px; }
.featured { padding-top: var(--space-xl); padding-bottom: var(--space-section); }
.lead-story { padding-block: var(--space-lg) var(--space-xl); border-bottom: 1px solid var(--color-rule); }
.lead-story h3 { font-size: clamp(2.25rem, 4.2vw, 4rem); max-width: 21ch; line-height: 1.42; }
.lead-story h3 a { text-decoration: none; }
.lead-story h3 a:hover { text-decoration: underline; text-decoration-thickness: 2px; }
.lead-story-copy { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--gap-columns); align-items: end; margin-top: var(--space-xl); }
.lead-story-copy > p:first-child { max-width: 45ch; }
.article-meta { display: flex; flex-wrap: wrap; gap: var(--space-sm) var(--space-lg); color: var(--color-muted); font-family: var(--font-label); font-size: 13px; line-height: 1.7; }
.lead-story .article-meta { justify-content: end; }
.reading-index { padding-bottom: var(--space-section); }
.article-row { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr) auto; gap: var(--gap-columns); align-items: start; padding-block: var(--space-inset); border-bottom: 1px solid var(--color-rule); }
.article-row :is(h2, h3) { font-size: var(--text-title); line-height: 1.65; }
.article-row :is(h2, h3) a { text-decoration: none; }
.article-row :is(h2, h3) a:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.article-row .article-meta { margin-top: var(--space-md); }
.article-description { font-size: 16px; color: var(--color-ink-2); line-height: 1.9; }
.row-link { font-family: var(--font-label); font-size: 13px; white-space: nowrap; min-height: 44px; display: inline-flex; align-items: center; }
.reading-path { background: var(--color-paper-2); padding-block: var(--space-2xl) var(--space-3xl); }
.reading-path .section-top { border: 0; padding-top: 0; }
.path-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-columns); }
.path-grid > a { display: flex; flex-direction: column; text-decoration: none; border-top: 1px solid var(--color-rule-2); padding-top: var(--space-lg); }
.path-grid > a:hover h3 { text-decoration: underline; text-decoration-color: var(--color-accent); }
.path-grid h3 { font-size: 27px; line-height: 1.5; }
.path-grid p { margin-top: var(--space-lg); font-size: 16px; }
.path-grid span { display: block; margin-top: var(--space-xl); font-family: var(--font-label); font-size: 14px; color: var(--color-accent); }
.editorial-note { padding-block: var(--space-section); display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--gap-columns); align-items: center; }
.editorial-note h2 { font-size: clamp(2rem, 3.1vw, 3rem); line-height: 1.65; }
.editorial-note .lead { line-height: 2; }
.editorial-note a { display: inline-flex; min-height: 44px; align-items: center; margin-top: var(--space-lg); font-family: var(--font-label); font-size: 14px; }
.site-footer { border-top: 4px solid var(--color-ink); padding-block: var(--space-xl) var(--space-lg); }
.footer-mast { display: flex; justify-content: space-between; align-items: center; gap: var(--space-xl); padding-bottom: var(--space-xl); border-bottom: 1px solid var(--color-rule); }
.footer-brand { font-family: var(--font-display); font-size: clamp(2.5rem, 5vw, 4.5rem); line-height: 1.4; letter-spacing: -0.045em; text-decoration: none; }
.footer-mast p { font-size: 20px; line-height: 1.75; }
.footer-body { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: var(--gap-columns); padding-block: var(--space-xl); }
address { font-family: var(--font-label); font-size: 14px; line-height: 1.9; font-style: normal; }
address > span, address > a { display: block; }
address > a { width: fit-content; min-height: 32px; }
.address-en { max-width: 50ch; color: var(--color-muted); font-size: 12px; }
.footer-body nav { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--space-xs) var(--space-lg); align-content: start; }
.footer-body nav a { min-height: 32px; font-size: 13px; font-family: var(--font-label); text-decoration: none; }
.footer-body nav a:hover { text-decoration: underline; }
.colophon { border-top: 1px solid var(--color-rule); padding-top: var(--space-lg); display: flex; justify-content: space-between; gap: var(--space-lg); font-family: var(--font-label); font-size: 12px; color: var(--color-muted); }
.document, .archive { padding-top: var(--space-2xl); padding-bottom: var(--space-3xl); }
.document-head { padding-bottom: var(--space-2xl); }
.document-head h1 { font-size: clamp(2rem, 4.1vw, 3.75rem); max-width: 24ch; line-height: 1.5; }
.document-head .lead { margin-top: var(--space-lg); line-height: 1.9; }
.document-layout { display: grid; grid-template-columns: minmax(0, .36fr) minmax(0, 1fr); gap: var(--gap-columns); border-top: 1px solid var(--color-rule); padding-top: var(--space-xl); }
.document-aside { font-family: var(--font-label); color: var(--color-muted); font-size: 13px; }
.document-aside h2 { font-size: 18px; margin-bottom: var(--space-md); }
.document-aside ol { padding-left: var(--space-lg); margin: 0; }
.document-aside li { margin-bottom: var(--space-md); }
.document-aside a { display: inline-block; }
.prose { max-width: 65ch; min-width: 0; }
.prose section + section { margin-top: var(--space-2xl); }
.prose h2 { font-size: clamp(1.35rem, 2vw, 1.8rem); line-height: 1.65; margin-bottom: var(--space-lg); }
.prose p { line-height: 2.1; }
.prose p + p { margin-top: var(--space-lg); }
.prose ul, .prose ol { padding-left: var(--space-lg); margin-block: var(--space-lg); }
.prose li { padding-left: var(--space-2xs); margin-bottom: var(--space-sm); }
.prose address { margin-block: var(--space-lg); }
.prose .contact-main { font-family: var(--font-label); font-size: clamp(1.15rem, 2.5vw, 2rem); margin-block: var(--space-lg); }
.publisher-table { margin: 0; font-family: var(--font-label); font-size: 15px; }
.publisher-table > div { display: grid; grid-template-columns: minmax(0,.3fr) minmax(0,1fr); gap: var(--space-lg); padding-block: var(--space-lg); border-bottom: 1px solid var(--color-rule); }
.publisher-table dt { color: var(--color-muted); }
.publisher-table dd { margin: 0; }
.article-filters { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(0,1fr) auto auto; gap: var(--gap-columns); align-items: end; padding: var(--space-inset); background: var(--color-paper-2); }
.article-filters label { display: block; font-size: 14px; font-family: var(--font-label); margin-bottom: var(--space-xs); }
.article-filters input, .article-filters select { width: 100%; min-height: 52px; padding: var(--space-sm); border: 1px solid var(--color-rule-2); border-radius: 0; background: var(--color-paper); color: var(--color-ink); font-family: var(--font-label); font-size: 16px; }
.article-filters input:hover, .article-filters select:hover { border-color: var(--color-ink); }
.reset-link { font-size: 13px; font-family: var(--font-label); min-height: 52px; display: inline-flex; align-items: center; }
.filter-status { padding-block: var(--space-lg); font-family: var(--font-label); font-size: 14px; color: var(--color-muted); }
.empty-state { padding-block: var(--space-2xl); }
.empty-state h2 { font-size: var(--text-title); margin-bottom: var(--space-lg); }
.empty-state a { display: inline-block; margin-top: var(--space-lg); }
.article-shell { padding-block: var(--space-xl) var(--space-3xl); }
.breadcrumbs { display: flex; gap: var(--space-sm); font-family: var(--font-label); font-size: 13px; color: var(--color-muted); }
.article-head { padding-block: var(--space-xl) var(--space-2xl); }
.article-head h1 { max-width: 23ch; font-size: clamp(2rem, 4.7vw, 4rem); line-height: 1.5; }
.article-head .lead { max-width: 52ch; margin-top: var(--space-lg); line-height: 1.9; }
.article-head .article-meta { margin-top: var(--space-xl); }
.article-intro { font-size: 24px; margin-bottom: var(--space-xl); }
.sources { border-top: 4px solid var(--color-ink); padding-top: var(--space-xl); }
.sources a { overflow-wrap: anywhere; }
.small-copy { font-size: 14px; color: var(--color-muted); }
.related { padding-top: var(--space-3xl); }
.related h2 { font-size: var(--text-section); padding-bottom: var(--space-lg); border-bottom: 4px solid var(--color-ink); }
.not-found { padding-block: var(--space-3xl); }
.not-found h1 { font-size: var(--text-section); line-height: 1.6; }
.not-found p { margin-block: var(--space-lg) var(--space-xl); }
.not-found > a + a { display: inline-flex; margin-left: var(--space-lg); }
@media (max-width: 60rem) {
  :root { --gutter: 28px; --space-section: 80px; }
  .mast-note { max-width: 28ch; font-size: 12px; text-align: right; }
  .nav-bar nav { gap: var(--space-lg); }
  .hero { padding-block: var(--space-xl) var(--space-2xl); }
  .hero .lead { font-size: 18px; }
  .hero-bottom { gap: var(--space-lg); }
  .article-row { grid-template-columns: minmax(0,1.3fr) minmax(0,1fr); }
  .article-row .row-link { grid-column: 2; }
  .path-grid { grid-template-columns: minmax(0,1fr); gap: var(--space-xl); }
  .path-grid > a { display: grid; grid-template-columns: minmax(0,.8fr) minmax(0,1fr); gap: var(--gap-columns); }
  .path-grid p { margin-top: 0; }
  .path-grid span { margin-top: 0; }
  .document-layout { grid-template-columns: minmax(0,.28fr) minmax(0,1fr); gap: var(--gap-columns); }
  .article-filters { grid-template-columns: minmax(0,1fr) minmax(0,1fr); }
  .article-filters .reset-link { justify-content: end; }
  .footer-body { gap: var(--gap-columns); }
}
@media (max-width: 40rem) {
  :root { --gutter: 20px; --gap-columns: 20px; --space-section: 64px; }
  .site-header { padding-top: var(--space-md); }
  .masthead { padding-bottom: var(--space-md); gap: var(--space-sm); }
  .wordmark { font-size: 27px; gap: var(--space-xs); }
  .brand-square { width: 7px; height: 7px; }
  .mast-note { max-width: 15em; font-size: 11px; line-height: 1.7; }
  .nav-bar { display: none; }
  .mobile-menu { display: block; border-top: 3px solid var(--color-ink); border-bottom: 1px solid var(--color-rule); font-size: 14px; }
  .mobile-menu summary { min-height: 48px; display: list-item; list-style-position: inside; padding-block: var(--space-sm); cursor: pointer; }
  .mobile-menu nav { display: grid; grid-template-columns: minmax(0,1fr); gap: var(--space-xs); }
  .mobile-menu nav a, .mobile-menu > a { min-height: 44px; padding-block: var(--space-xs); display: flex; align-items: center; text-decoration: none; }
  .mobile-menu nav a:hover, .mobile-menu > a:hover { text-decoration: underline; }
  .mobile-menu > a { margin-bottom: var(--space-sm); color: var(--color-muted); }
  .hero { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
  .hero h1 { font-size: clamp(2.55rem, 10.8vw, 4rem); line-height: 1.38; }
  .hero-bottom { display: block; margin-top: var(--space-lg); }
  .hero .lead { font-size: 17px; line-height: 1.95; }
  .hero .button { margin-top: var(--space-lg); min-width: 160px; }
  .featured { padding-top: var(--space-lg); }
  .section-top { padding-top: var(--space-lg); margin-bottom: var(--space-lg); align-items: start; flex-direction: column; gap: var(--space-sm); }
  .section-top h2 { font-size: 27px; }
  .section-top > a { font-size: 12px; padding-top: 0; min-height: 32px; }
  .lead-story { padding-top: var(--space-sm); padding-bottom: var(--space-lg); }
  .lead-story h3 { font-size: clamp(2rem, 8vw, 2.8rem); }
  .lead-story-copy { display: block; margin-top: var(--space-lg); }
  .lead-story .article-meta { justify-content: start; margin-top: var(--space-lg); }
  .article-row { grid-template-columns: minmax(0,1fr); gap: var(--space-md); padding-block: var(--space-lg); }
  .article-row :is(h2, h3) { font-size: 22px; }
  .article-row .article-meta { margin-top: var(--space-sm); font-size: 12px; }
  .article-row .row-link { grid-column: auto; justify-self: start; min-height: 36px; }
  .reading-path { padding-block: var(--space-xl) var(--space-2xl); }
  .path-grid > a { display: block; }
  .path-grid h3 { font-size: 25px; }
  .path-grid p { margin-top: var(--space-md); }
  .path-grid span { margin-top: var(--space-lg); }
  .editorial-note { grid-template-columns: minmax(0,1fr); gap: var(--space-lg); }
  .editorial-note h2 { font-size: 29px; }
  .editorial-note .lead { font-size: 18px; }
  .footer-mast { align-items: start; gap: var(--space-lg); padding-bottom: var(--space-lg); }
  .footer-mast p { font-size: 14px; }
  .footer-brand { font-size: 36px; }
  .footer-body { grid-template-columns: minmax(0,1fr); padding-block: var(--space-lg); gap: var(--space-lg); }
  .footer-body nav { gap: var(--space-xs) var(--space-md); }
  .footer-body nav a { min-height: 44px; font-size: 12px; }
  .colophon { font-size: 11px; padding-top: var(--space-md); }
  .document, .archive { padding-top: var(--space-xl); padding-bottom: var(--space-2xl); }
  .document-head { padding-bottom: var(--space-xl); }
  .document-head h1 { font-size: 31px; line-height: 1.6; }
  .document-head .lead { font-size: 17px; }
  .document-layout { grid-template-columns: minmax(0,1fr); gap: var(--space-xl); padding-top: var(--space-lg); }
  .document-aside nav { padding-bottom: var(--space-lg); border-bottom: 1px solid var(--color-rule); }
  .document-aside li { margin-bottom: var(--space-xs); }
  .document-aside a { min-height: 32px; }
  .prose { font-size: 17px; }
  .prose h2 { font-size: 23px; }
  .prose section + section { margin-top: var(--space-xl); }
  .publisher-table > div { grid-template-columns: minmax(0,1fr); gap: var(--space-xs); }
  .article-filters { grid-template-columns: minmax(0,1fr); padding: var(--space-lg); }
  .article-filters .reset-link { justify-content: start; min-height: 32px; }
  .article-shell { padding-top: var(--space-lg); padding-bottom: var(--space-2xl); }
  .article-head { padding-block: var(--space-lg) var(--space-xl); }
  .article-head h1 { font-size: 33px; }
  .article-head .lead { font-size: 17px; }
  .article-head .article-meta { margin-top: var(--space-lg); }
  .article-intro { font-size: 21px; }
  .related { padding-top: var(--space-2xl); }
  .not-found { padding-block: var(--space-2xl); }
  .not-found > a + a { display: flex; margin: var(--space-lg) 0 0; }
}
.hero-with-picture { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-2xl); align-items: center; }
.hero-copy { min-width: 0; }
.hero-with-picture h1 { font-size: clamp(2.55rem, 4.2vw, 4rem); }
.hero-with-picture .hero-bottom { display: block; margin-top: var(--space-lg); }
.hero-with-picture .lead { font-size: 18px; }
.hero-with-picture .button { margin-top: var(--space-lg); }
.hero-picture { margin: 0; min-width: 0; }
.hero-picture img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; }
.hero-picture figcaption { margin-top: var(--space-sm); font-family: var(--font-label); color: var(--color-muted); font-size: 12px; line-height: 1.8; }
@media (max-width: 60rem) {
  .hero-with-picture { grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); }
  .hero-with-picture h1 { font-size: clamp(2.55rem, 6vw, 4rem); }
  .hero-with-picture .lead { max-width: 46ch; }
}
@media (max-width: 40rem) {
  .hero-with-picture { gap: var(--space-lg); }
  .hero-with-picture h1 { font-size: clamp(2.55rem, 10.8vw, 4rem); }
  .hero-with-picture .lead { font-size: 17px; }
  .hero-picture figcaption { font-size: 11px; }
}