@font-face {
  font-family: "Yuji Syuku";
  src: url("/assets/fonts/YujiSyuku-Regular.woff") format("woff");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #f3ede2;
  --raised-paper: #e8dece;
  --ink: #241f29;
  --muted-ink: #645c68;
  --amethyst: #685078;
  --deep-amethyst: #382b43;
  --lunar-gold: #9a7840;
  --rule: rgb(56 43 67 / 18%);
  --radius: 26px;
  --body-size: 17px;
  font-family: "Yuji Syuku";
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { background: var(--paper); scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: var(--body-size);
  line-height: 1.75;
}
a { color: var(--deep-amethyst); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--amethyst); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--lunar-gold);
  outline-offset: 4px;
  border-radius: var(--radius);
}
.reading-shell { width: 100%; margin-inline: auto; padding-inline: clamp(1rem, 4vw, 3rem); }
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--rule);
}
.brand { display: grid; color: var(--ink); text-decoration: none; line-height: 1.35; }
.brand span { color: var(--muted-ink); font-size: 0.9rem; }
.language-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.45rem; }
.language-nav a, .site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  color: var(--deep-amethyst);
  text-decoration: none;
}
.language-nav a[aria-current="page"] { border-color: var(--amethyst); background: var(--raised-paper); }
.skip-link { position: absolute; left: 1rem; top: -5rem; z-index: 2; padding: 0.7rem 1rem; border-radius: var(--radius); background: var(--deep-amethyst); color: var(--paper); }
.skip-link:focus { top: 1rem; }
main { padding-block: clamp(2.5rem, 7vw, 5rem); }
h1, h2, h3 { color: var(--deep-amethyst); font-weight: 400; line-height: 1.2; }
h1 { max-width: 18ch; margin: 0 0 1rem; font-size: clamp(2.3rem, 6vw, 4.2rem); }
h2 { margin: 0 0 0.8rem; font-size: clamp(1.7rem, 4vw, 2.4rem); }
h3 { font-size: 1.4rem; }
p, li, dd { max-width: 76ch; }
.eyebrow { margin: 0 0 0.6rem; color: var(--lunar-gold); font-size: 0.9rem; letter-spacing: 0.06em; }
.lede { color: var(--muted-ink); font-size: 1.12rem; }
.page-hero { padding: clamp(1.4rem, 4vw, 2.5rem); border: 1px solid var(--rule); border-radius: var(--radius); background: var(--raised-paper); }
.status-note { margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--rule); }
.status-note__intro { display: grid; gap: 0.15rem; }
.status-note__register { display: grid; gap: 0.4rem; margin: 1rem 0 0; }
.status-note__register div { display: grid; grid-template-columns: minmax(8rem, 0.35fr) minmax(0, 1fr); gap: 1rem; padding-top: 0.55rem; border-top: 1px solid var(--rule); }
dt { color: var(--amethyst); }
dd { margin: 0; color: var(--muted-ink); }
.section { margin-top: clamp(3rem, 7vw, 5rem); padding-top: clamp(2rem, 4vw, 3rem); border-top: 1px solid var(--rule); }
.methodology-columns { display: grid; gap: 1.25rem; }
.methodology-columns > div, .definition-list > div { padding: 1.3rem; border: 1px solid var(--rule); border-radius: var(--radius); background: rgb(232 222 206 / 58%); }
.plain-list, .download-list, .link-list { padding-left: 1.4rem; }
li { margin-block: 0.45rem; }
.definition-list { display: grid; gap: 0.7rem; }
.definition-list > div { display: grid; gap: 0.4rem; }
.split-links { display: grid; gap: 2rem; }
.publication-order { display: grid; gap: 0.55rem; padding: 0; list-style: none; }
.publication-order li { display: flex; align-items: center; gap: 0.75rem; }
.publication-order li > span { display: grid; width: 2.2rem; aspect-ratio: 1; place-items: center; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--raised-paper); }
.link-list { display: grid; gap: 0.65rem; list-style: none; padding: 0; }
.link-list a { display: grid; gap: 0.2rem; padding: 1rem 1.2rem; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--raised-paper); text-decoration: none; }
.link-list span, .download-list span { color: var(--muted-ink); }
.download-list li { padding-block: 0.5rem; }
.text-link { font-weight: 400; }
.status-label { display: inline-flex; padding: 0.35rem 0.8rem; border: 1px solid var(--amethyst); border-radius: var(--radius); color: var(--deep-amethyst); }
.site-footer { padding-block: 1.5rem 2.5rem; border-top: 1px solid var(--rule); color: var(--muted-ink); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.not-found { min-height: 100vh; padding-block: 15vh; }
code { padding: 0.1em 0.3em; border-radius: 0.35rem; background: var(--raised-paper); overflow-wrap: anywhere; }

@media (orientation: landscape) {
  .reading-shell { max-width: calc(100vw / 1.61803398875); }
}
@media (min-width: 850px) {
  .methodology-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .definition-list > div { grid-template-columns: minmax(12rem, 0.35fr) minmax(0, 1fr); gap: 1.5rem; }
  .split-links { grid-template-columns: minmax(0, 1.25fr) minmax(16rem, 0.75fr); align-items: start; }
}
@media (max-width: 620px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .language-nav { justify-content: flex-start; }
  .status-note__register div { grid-template-columns: 1fr; gap: 0.1rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 1ms !important; animation-duration: 1ms !important; }
}