:root {
  color-scheme: dark;
  --paper: #0b0b0e;
  --paper-deep: #08090b;
  --paper-raised: #111217;
  --paper-soft: #0e0f13;
  --ink: #ededf1;
  --ink-soft: #cbc9d1;
  --muted: #aaa9b2;
  --quiet: #777782;
  --line: #2b2c33;
  --line-strong: #454650;
  --violet: #9788ff;
  --violet-soft: #c2baff;
  --violet-deep: #3b336f;
  --mint: #83c8aa;
  --amber: #d7b26d;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --sans: "Segoe UI Variable", "Segoe UI", Inter, system-ui, sans-serif;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, ui-monospace, monospace;
  --shell: min(1180px, calc(100vw - 40px));
  --manual-columns: 170px minmax(0, 650px) minmax(220px, 1fr);
  --page-gap: 28px;
  --transition: 140ms ease;
}

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

html {
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(151, 136, 255, 0.045), transparent 300px),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  text-rendering: optimizelegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, currentcolor 42%, transparent);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-color: currentcolor;
}

button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 2px solid var(--violet-soft);
  outline-offset: 4px;
}

::selection {
  background: var(--violet-deep);
  color: var(--ink);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 9px 13px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 700;
  transform: translateY(-160%);
}

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

.site-header {
  position: relative;
  z-index: 20;
  background: rgba(11, 11, 14, 0.94);
}

.site-nav {
  min-height: 72px;
  display: grid;
  grid-template-columns: 170px 1fr auto;
  gap: var(--page-gap);
  align-items: center;
  border-bottom: 1px solid var(--line-strong);
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-decoration: none;
}

.wordmark i {
  color: var(--violet);
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 500;
}

.site-folio {
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.desktop-nav {
  display: flex;
  gap: clamp(18px, 2.6vw, 34px);
  align-items: center;
  font-size: 0.82rem;
}

.desktop-nav a {
  position: relative;
  color: var(--muted);
  text-decoration: none;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] {
  color: var(--ink);
}

.desktop-nav a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -25px;
  left: 0;
  height: 1px;
  background: var(--violet);
  content: "";
}

.mobile-nav {
  display: none;
  position: relative;
}

.mobile-nav summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding-left: 12px;
  color: var(--ink);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  list-style: none;
  text-transform: uppercase;
}

.mobile-nav summary::-webkit-details-marker {
  display: none;
}

.mobile-nav div {
  position: absolute;
  top: 38px;
  right: 0;
  width: min(280px, calc(100vw - 30px));
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.5);
}

.mobile-nav a {
  display: block;
  padding: 13px 17px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
}

.mobile-nav a:last-child {
  border-bottom: 0;
}

.mobile-nav a:hover {
  background: #16171d;
  color: var(--ink);
}

.kicker,
.section-folio span,
.contents-rail > p,
.margin-card h2,
.margin-card h3,
.margin-note h2,
.margin-note h3,
.register-label,
.article-folio dt,
.historical-note span {
  color: var(--violet-soft);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.kicker {
  margin: 0 0 8px;
}

.contents-rail {
  padding-top: 4px;
  border-right: 1px solid var(--line);
}

.contents-rail > p {
  margin: 0 0 14px;
  color: var(--quiet);
}

.contents-rail ol {
  counter-reset: contents;
  margin: 0;
  padding: 0 20px 0 0;
  list-style: none;
}

.contents-rail li {
  counter-increment: contents;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 5px;
  padding: 7px 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.35;
}

.contents-rail li::before {
  color: var(--violet);
  content: "0" counter(contents);
  font-family: var(--mono);
  font-size: 0.66rem;
}

.contents-rail a {
  text-decoration: none;
}

.contents-rail a:hover {
  color: var(--ink);
}

.section-folio {
  padding-top: 4px;
}

.section-folio span {
  display: block;
  margin-bottom: 5px;
  color: var(--violet);
}

.section-folio p {
  max-width: 15ch;
  margin: 0;
  color: var(--quiet);
  font: 0.7rem/1.45 var(--mono);
}

.manual-links {
  display: flex;
  flex-wrap: wrap;
  gap: 11px 20px;
  margin-top: 28px;
}

.manual-link {
  display: inline-flex;
  gap: 8px;
  align-items: baseline;
  color: var(--violet-soft);
  font-size: 0.82rem;
  font-weight: 650;
  text-decoration: none;
}

.manual-link::after {
  content: "→";
  font-family: var(--mono);
}

.manual-link:hover {
  color: var(--ink);
}

.manual-link.strong {
  padding-bottom: 3px;
  border-bottom: 1px solid var(--violet);
  color: var(--ink);
}

.margin-card,
.margin-figure {
  padding: 16px;
  border: 1px solid var(--line);
  background: rgba(17, 18, 23, 0.72);
}

.margin-card h2,
.margin-card h3,
.margin-note h2,
.margin-note h3 {
  margin: 0 0 12px;
  color: var(--ink-soft);
}

.margin-note {
  color: var(--muted);
  font: 0.84rem/1.65 var(--serif);
}

.margin-note p {
  margin: 0 0 10px;
}

.margin-note a {
  color: var(--violet-soft);
}

.record-list {
  margin: 0;
}

.record-list div {
  display: grid;
  grid-template-columns: minmax(70px, 0.42fr) 1fr;
  gap: 12px;
  padding: 7px 0;
  border-top: 1px solid var(--line);
}

.record-list dt {
  color: var(--quiet);
  font: 0.62rem/1.5 var(--mono);
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.record-list dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.project-ident {
  display: flex;
  gap: 12px;
  align-items: center;
}

.project-ident img {
  width: 32px;
  height: 32px;
  image-rendering: auto;
}

.project-ident .kicker {
  margin: 0;
}

/* Studio index */

.studio-front {
  display: grid;
  grid-template-columns: var(--manual-columns);
  gap: var(--page-gap);
  padding-block: 54px 76px;
  border-bottom: 1px solid var(--line-strong);
}

.front-copy h1,
.manual-title-block h1,
.document-heading h1,
.register-heading h1,
.release-intro h1,
.missing-folio h1 {
  margin: 0;
  font: 500 clamp(2.8rem, 5.6vw, 4.5rem) / 0.98 var(--serif);
  letter-spacing: -0.038em;
}

.front-deck,
.manual-deck,
.document-deck {
  max-width: 58ch;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font: 1.08rem/1.72 var(--serif);
}

.studio-register {
  align-self: start;
}

.catalogue-section {
  display: grid;
  grid-template-columns: var(--manual-columns);
  gap: var(--page-gap);
  padding-block: 62px;
  border-bottom: 1px solid var(--line);
}

.catalogue-section.last-section {
  border-bottom: 0;
}

.catalogue-copy {
  max-width: 650px;
  color: var(--muted);
  font: 1rem/1.72 var(--serif);
}

.catalogue-copy h2 {
  margin: 0 0 18px;
  color: var(--ink);
  font: 500 clamp(2rem, 3.5vw, 3rem) / 1.06 var(--serif);
  letter-spacing: -0.025em;
}

.catalogue-copy .project-ident {
  margin-bottom: 20px;
}

.catalogue-copy .project-ident h2 {
  margin: 0;
}

.catalogue-copy > p {
  max-width: 62ch;
}

.catalogue-lede {
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.studio-notes {
  counter-reset: notes;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.studio-notes li {
  counter-increment: notes;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.studio-notes li::before {
  color: var(--violet);
  content: "0" counter(notes);
  font: 0.66rem/1.7 var(--mono);
}

.studio-note-copy {
  min-width: 0;
}

.studio-notes strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
}

.front-journal-entry {
  padding-top: 20px;
  border-top: 1px solid var(--line-strong);
}

.front-journal-entry time {
  color: var(--violet-soft);
  font: 0.68rem/1.4 var(--mono);
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.front-journal-entry h3 {
  margin: 12px 0 8px;
  color: var(--ink);
  font: 500 clamp(1.55rem, 2.5vw, 2.2rem) / 1.12 var(--serif);
}

.front-journal-entry h3 a {
  text-decoration: none;
}

.front-journal-entry p {
  margin-top: 0;
}

.compact-copy p {
  max-width: 52ch;
}

.release-stamp {
  align-self: start;
  border-top-color: var(--mint);
}

.release-stamp strong {
  display: block;
  color: var(--mint);
  font: 0.68rem/1.4 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.release-stamp span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 0.76rem;
}

/* Sylvia GM manual */

.manual-document {
  display: grid;
  grid-template-columns: var(--manual-columns);
  gap: var(--page-gap);
  padding-bottom: 92px;
}

.manual-toc {
  padding-top: 50px;
}

.manual-toc ol {
  position: sticky;
  top: 24px;
}

.manual-main {
  padding-top: 48px;
}

.manual-title-block {
  padding-bottom: 22px;
}

.manual-title-block .project-ident {
  margin-bottom: 18px;
}

.manual-title-block h1 {
  max-width: 12ch;
  font-size: clamp(2.7rem, 5vw, 4.15rem);
}

.rule-entry {
  scroll-margin-top: 24px;
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid var(--line-strong);
  color: var(--muted);
  font: 1rem/1.72 var(--serif);
}

.rule-entry header {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.rule-entry header > span {
  color: var(--violet);
  font: 0.7rem/1.4 var(--mono);
}

.rule-entry h2 {
  margin: 0;
  color: var(--ink);
  font: 500 clamp(1.5rem, 2.6vw, 2rem) / 1.18 var(--serif);
}

.rule-entry > p,
.rule-entry > blockquote,
.rule-entry > ul,
.rule-entry > .manual-link {
  margin-left: 52px;
}

.rule-entry blockquote {
  margin-top: 18px;
  margin-right: 0;
  padding-left: 16px;
  border-left: 2px solid var(--violet-deep);
  color: var(--ink-soft);
}

.manual-facts {
  margin-top: 20px;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.manual-facts li {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 9px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.manual-facts li::before {
  color: var(--violet);
  content: "◇";
  font-family: var(--sans);
}

.boundary-note {
  padding: 12px 14px;
  border-left: 2px solid var(--amber);
  background: var(--paper-raised);
  font-size: 0.92rem;
}

.manual-margin-column {
  padding-top: 50px;
}

.manual-margin-column > * {
  margin: 0 0 26px;
}

.margin-figure svg {
  width: 100%;
  height: auto;
}

.margin-figure figcaption {
  margin-top: 12px;
  color: var(--quiet);
  font: 0.65rem/1.55 var(--mono);
}

/* Why page */

.document-heading,
.register-heading,
.release-sheet,
.missing-folio {
  display: grid;
  grid-template-columns: var(--manual-columns);
  gap: var(--page-gap);
  padding-block: 56px 66px;
  border-bottom: 1px solid var(--line-strong);
}

.document-heading h1 {
  max-width: 11ch;
}

.document-heading .margin-note,
.register-heading .margin-note,
.missing-folio .margin-note {
  align-self: end;
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
}

.question-sheet {
  display: grid;
  grid-template-columns: var(--manual-columns);
  gap: var(--page-gap);
  padding-block: 8px 86px;
}

.question-index {
  padding-top: 40px;
}

.question-list {
  max-width: 650px;
}

.question-entry {
  scroll-margin-top: 24px;
  padding-block: 34px;
  border-bottom: 1px solid var(--line);
}

.question-entry > span {
  color: var(--violet);
  font: 0.68rem/1.4 var(--mono);
}

.question-entry h2 {
  margin: 8px 0 13px;
  color: var(--ink);
  font: 500 clamp(1.55rem, 2.8vw, 2.2rem) / 1.14 var(--serif);
}

.question-entry p {
  margin: 0;
  color: var(--muted);
  font: 1rem/1.72 var(--serif);
}

.fit-notes {
  padding-top: 40px;
}

.fit-notes .margin-card {
  margin-bottom: 22px;
}

.fit-notes ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.fit-notes li {
  padding: 9px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

/* Journal register */

.register-heading h1 {
  max-width: 12ch;
}

.journal-register {
  padding-block: 38px 84px;
}

.register-label,
.register-entry {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) 170px;
  gap: var(--page-gap);
}

.register-label {
  padding: 0 0 10px;
  border-bottom: 1px solid var(--line-strong);
  color: var(--quiet);
}

.register-label span:last-child {
  text-align: right;
}

.register-entry {
  align-items: start;
  padding: 27px 0 29px;
  border-bottom: 1px solid var(--line);
}

.register-entry time,
.register-entry .topic {
  color: var(--quiet);
  font: 0.68rem/1.45 var(--mono);
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.register-entry time {
  color: var(--violet-soft);
}

.register-entry .topic {
  text-align: right;
}

.register-entry h2 {
  margin: -0.12em 0 7px;
  color: var(--ink);
  font: 500 clamp(1.4rem, 2.4vw, 2rem) / 1.15 var(--serif);
}

.register-entry h2 a {
  text-decoration: none;
}

.register-entry h2 a:hover {
  color: var(--violet-soft);
}

.register-entry p {
  max-width: 62ch;
  margin: 0;
  color: var(--muted);
  font: 0.94rem/1.6 var(--serif);
}

/* Journal article */

.article-frame {
  display: grid;
  grid-template-columns: var(--manual-columns);
  gap: var(--page-gap);
  padding-block: 48px 76px;
}

.article-folio {
  padding-right: 20px;
  border-right: 1px solid var(--line);
}

.back-link {
  display: inline-flex;
  gap: 7px;
  color: var(--muted);
  font: 0.66rem/1.4 var(--mono);
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.back-link::before {
  content: "←";
}

.article-folio dl {
  margin: 28px 0 0;
}

.article-folio dl div {
  padding: 9px 0;
  border-top: 1px solid var(--line);
}

.article-folio dt {
  color: var(--quiet);
}

.article-folio dd {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.73rem;
}

.article-header {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line-strong);
}

.article-header h1 {
  margin: 0;
  color: var(--ink);
  font: 500 clamp(2.5rem, 5vw, 4.25rem) / 1 var(--serif);
  letter-spacing: -0.035em;
}

.article-deck {
  margin: 22px 0 0;
  color: var(--ink-soft);
  font: 1.08rem/1.68 var(--serif);
}

.article-body {
  padding-top: 32px;
  color: var(--ink-soft);
  font: 1.02rem/1.78 var(--serif);
}

.article-body h2 {
  margin: 2.25em 0 0.65em;
  color: var(--ink);
  font: 500 clamp(1.55rem, 2.8vw, 2.2rem) / 1.16 var(--serif);
}

.article-body h3 {
  margin: 2em 0 0.6em;
  color: var(--ink);
  font: 600 1.2rem/1.3 var(--serif);
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body blockquote,
.article-body pre {
  margin-block: 1.2em;
}

.article-body a {
  color: var(--violet-soft);
}

.article-body blockquote {
  margin-inline: 0;
  padding-left: 20px;
  border-left: 2px solid var(--violet-deep);
  color: var(--muted);
}

.article-body code {
  padding: 0.1em 0.3em;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  color: var(--violet-soft);
  font: 0.86em/1.4 var(--mono);
}

.article-body pre {
  overflow-x: auto;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
}

.article-body pre code {
  padding: 0;
  border: 0;
  background: transparent;
}

.historical-note {
  margin-bottom: 38px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--amber);
  background: var(--paper-raised);
}

.historical-note span {
  color: var(--amber);
}

.historical-note p {
  margin: 4px 0 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.8rem;
}

.article-margin {
  align-self: start;
  margin-top: 32px;
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
  color: var(--muted);
  font: 0.8rem/1.65 var(--serif);
}

.article-margin p {
  margin: 0;
}

.article-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-bottom: 84px;
  border: 1px solid var(--line);
  background: var(--line);
}

.article-navigation > div {
  min-height: 112px;
  padding: 22px;
  background: var(--paper-soft);
}

.article-navigation span {
  display: block;
  margin-bottom: 8px;
  color: var(--quiet);
  font: 0.64rem/1.4 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.article-navigation a {
  font: 500 1rem/1.4 var(--serif);
}

.article-navigation .next-entry {
  text-align: right;
}

/* The Yes Folder */

.release-intro h1 {
  max-width: 12ch;
}

.release-record {
  align-self: end;
  border-top-color: var(--mint);
}

.release-section {
  display: grid;
  grid-template-columns: var(--manual-columns);
  gap: var(--page-gap);
  padding-block: 58px;
  border-bottom: 1px solid var(--line);
}

.release-section.last-section {
  border-bottom: 0;
}

.release-section h2 {
  margin: 0 0 20px;
  color: var(--ink);
  font: 500 clamp(1.8rem, 3.2vw, 2.65rem) / 1.1 var(--serif);
}

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

.procedure-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 0.96rem/1.55 var(--serif);
}

.procedure-list span {
  color: var(--mint);
  font: 0.66rem/1.7 var(--mono);
}

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

.release-facts li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 0.96rem/1.55 var(--serif);
}

.release-facts li::before {
  color: var(--mint);
  content: "✓";
  font-family: var(--sans);
}

.warning-card {
  align-self: start;
  border-left: 2px solid var(--amber);
}

.warning-card h3 {
  color: var(--amber);
}

.warning-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
}

/* System page and footer */

.missing-folio {
  min-height: 62vh;
  align-items: center;
}

.error-code {
  color: var(--violet);
  font: 500 clamp(3.4rem, 7vw, 6rem) / 1 var(--serif);
}

.missing-folio h1 {
  max-width: 11ch;
}

.missing-folio > div:nth-child(2) > p:not(.kicker) {
  max-width: 54ch;
  color: var(--muted);
  font: 1rem/1.65 var(--serif);
}

.site-footer {
  padding-block: 44px;
  border-top: 1px solid var(--line-strong);
  background: var(--paper-deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 0.7fr;
  gap: 44px;
}

.footer-mark {
  margin-bottom: 13px;
}

.footer-grid p {
  max-width: 390px;
  margin: 0;
  color: var(--quiet);
  font-size: 0.78rem;
}

.footer-grid nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 7px;
  font-size: 0.8rem;
}

.footer-grid .footer-meta {
  text-align: right;
}

.footer-meta span {
  display: block;
  margin-bottom: 5px;
  color: var(--violet-soft);
  font: 0.63rem/1.4 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

@media (max-width: 1000px) {
  :root {
    --manual-columns: 140px minmax(0, 1fr);
  }

  .studio-front,
  .catalogue-section,
  .manual-document,
  .document-heading,
  .question-sheet,
  .register-heading,
  .release-sheet,
  .release-section,
  .missing-folio,
  .article-frame {
    grid-template-columns: var(--manual-columns);
  }

  .studio-front > :nth-child(3),
  .catalogue-section > :nth-child(3),
  .document-heading > :nth-child(3),
  .register-heading > :nth-child(3),
  .release-sheet > :nth-child(3),
  .release-section > :nth-child(3),
  .missing-folio > :nth-child(3),
  .article-margin {
    grid-column: 2;
  }

  .manual-margin-column,
  .fit-notes {
    grid-column: 2;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    padding-top: 20px;
  }

  .manual-margin-column > *,
  .fit-notes .margin-card {
    margin: 0;
  }

  .manual-margin-column .margin-note {
    padding-top: 14px;
    border-top: 1px solid var(--line-strong);
  }

  .article-folio {
    grid-row: 1;
  }

  .article-column {
    grid-column: 2;
    grid-row: 1;
  }

  .article-margin {
    grid-row: 2;
  }
}

@media (max-width: 720px) {
  :root {
    --shell: min(100% - 30px, 1180px);
    --page-gap: 22px;
  }

  .site-nav {
    min-height: 60px;
    grid-template-columns: 1fr auto;
  }

  .site-folio,
  .desktop-nav {
    display: none;
  }

  .mobile-nav {
    display: block;
  }

  .studio-front,
  .catalogue-section,
  .manual-document,
  .document-heading,
  .question-sheet,
  .register-heading,
  .release-sheet,
  .release-section,
  .missing-folio,
  .article-frame {
    grid-template-columns: 1fr;
  }

  .studio-front {
    padding-block: 40px 54px;
  }

  .studio-front .contents-rail,
  .manual-toc,
  .question-index {
    display: none;
  }

  .front-copy h1,
  .manual-title-block h1,
  .document-heading h1,
  .register-heading h1,
  .release-intro h1,
  .missing-folio h1 {
    font-size: clamp(2.6rem, 12vw, 3.7rem);
  }

  .studio-front > :nth-child(3),
  .catalogue-section > :nth-child(3),
  .document-heading > :nth-child(3),
  .register-heading > :nth-child(3),
  .release-sheet > :nth-child(3),
  .release-section > :nth-child(3),
  .missing-folio > :nth-child(3),
  .article-column,
  .article-margin {
    grid-column: 1;
  }

  .section-folio {
    padding-bottom: 2px;
  }

  .section-folio p {
    max-width: none;
  }

  .catalogue-section,
  .release-section {
    padding-block: 46px;
  }

  .manual-main {
    padding-top: 38px;
  }

  .manual-margin-column,
  .fit-notes {
    grid-column: 1;
    grid-template-columns: 1fr;
  }

  .rule-entry > p,
  .rule-entry > blockquote,
  .rule-entry > ul,
  .rule-entry > .manual-link {
    margin-left: 0;
  }

  .document-heading,
  .register-heading,
  .release-sheet,
  .missing-folio {
    padding-block: 42px 50px;
  }

  .question-sheet {
    padding-bottom: 62px;
  }

  .fit-notes {
    padding-top: 14px;
  }

  .register-label {
    display: none;
  }

  .register-entry {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .register-entry .topic {
    text-align: left;
  }

  .article-frame {
    padding-top: 34px;
  }

  .article-folio {
    grid-row: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    padding: 0 0 18px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .article-folio dl {
    margin: 0;
  }

  .article-column,
  .article-margin {
    grid-row: auto;
  }

  .article-navigation {
    grid-template-columns: 1fr;
  }

  .article-navigation .next-entry {
    text-align: left;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-grid .footer-meta {
    text-align: left;
  }
}

@media (max-width: 420px) {
  .manual-links {
    align-items: flex-start;
    flex-direction: column;
  }

  .article-folio {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .rule-entry header {
    grid-template-columns: 36px minmax(0, 1fr);
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}