@font-face {
  font-family: "Archivo Narrow";
  src: url("/assets/fonts/archivo-narrow/ArchivoNarrow-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Archivo Narrow";
  src: url("/assets/fonts/archivo-narrow/ArchivoNarrow-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Archivo Narrow";
  src: url("/assets/fonts/archivo-narrow/ArchivoNarrow-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Archivo Narrow";
  src: url("/assets/fonts/archivo-narrow/ArchivoNarrow-BoldItalic.woff2") format("woff2");
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Literata";
  src: url("/assets/fonts/literata/Literata[opsz,wght].woff2") format("woff2");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Literata";
  src: url("/assets/fonts/literata/Literata-Italic[opsz,wght].woff2") format("woff2");
  font-weight: 200 900;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/assets/fonts/ibm-plex-mono/IBMPlexMono-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/assets/fonts/ibm-plex-mono/IBMPlexMono-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
:root {
  --color-ink: #0A0A0A;
  --color-ink-2: #3A3A37;
  --color-muted: #5B5B57;
  --color-rule: #D5D4CB;
  --color-paper: #F5F4EE;
  --color-paper-2: #ECEBE3;
  --color-tint: #DCEDEA;
  --color-teal: #00A89E;
  --color-teal-deep: #1E6866;
  --color-teal-mid: #218E8E;
  --color-cyan: #00FFFF;
  --color-ground: #101C1C;
  --color-ground-2: #152424;
  --color-ground-3: #1B2B2B;
  --color-ground-rule: #2A3A3A;
  --color-on-ground: #F5F4EE;
  --color-on-ground-2: #C9D1CE;
  --color-on-ground-muted: #8FA09C;
  --color-code-string: #8A5A1E;
  --color-code-comment: #666661;
  --color-code-linenum: #8A8A84;
  --color-series-technical-notes: #1E6866;
  --color-series-technical-notes-spine: #143E3E;
  --color-series-technical-notes-type: #F5F4EE;
  --color-series-essays: #0A0A0A;
  --color-series-essays-spine: #1E1E1E;
  --color-series-essays-type: #F5F4EE;
  --color-series-work: #218E8E;
  --color-series-work-spine: #1E6866;
  --color-series-work-type: #0A0A0A;
  --font-display-family: "Archivo Narrow", "Arial Narrow", sans-serif;
  --font-display-weights-title: 700;
  --font-display-weights-label: 600;
  --font-display-weights-chrome: 500;
  --font-text-family: Literata, Georgia, serif;
  --font-text-weights-regular: 400;
  --font-text-weights-emphasis: 500;
  --font-mono-family: "IBM Plex Mono", monospace;
  --font-mono-weights-regular: 400;
  --font-mono-weights-strong: 500;
  --type-label-size: 12;
  --type-label-line: 16;
  --type-label-tracking: 0.14em;
  --type-label-transform: uppercase;
  --type-label-font: display;
  --type-label-weight: 500;
  --type-chrome-size: 13;
  --type-chrome-line: 16;
  --type-chrome-tracking: 0.14em;
  --type-chrome-transform: uppercase;
  --type-chrome-font: display;
  --type-chrome-weight: 500;
  --type-meta-size: 14;
  --type-meta-line: 20;
  --type-meta-font: text;
  --type-caption-size: 13;
  --type-caption-line: 20;
  --type-caption-font: text;
  --type-text-size: 16;
  --type-text-line: 24;
  --type-text-font: text;
  --type-text-phone-size: 15;
  --type-text-phone-line: 22;
  --type-text-tabletPortrait-size: 18;
  --type-text-tabletPortrait-line: 28;
  --type-card-title-size: 27;
  --type-card-title-line: 28;
  --type-card-title-font: display;
  --type-card-title-weight: 700;
  --type-card-title-tracking: -0.005em;
  --type-card-title-tablet-size: 22;
  --type-card-title-tablet-line: 24;
  --type-card-title-phone-size: 21;
  --type-card-title-phone-line: 24;
  --type-card-title-phoneLandscape-size: 20;
  --type-card-title-phoneLandscape-line: 22;
  --type-article-title-size: 31;
  --type-article-title-line: 32;
  --type-article-title-font: display;
  --type-article-title-weight: 700;
  --type-article-title-tablet-size: 26;
  --type-article-title-tablet-line: 28;
  --type-article-title-tabletPortrait-size: 36;
  --type-article-title-tabletPortrait-line: 38;
  --type-article-title-phone-size: 28;
  --type-article-title-phone-line: 30;
  --type-article-title-phoneLandscape-size: 26;
  --type-article-title-phoneLandscape-line: 28;
  --type-notice-title-size: 27;
  --type-notice-title-line: 28;
  --type-notice-title-font: display;
  --type-notice-title-weight: 700;
  --type-h1-size: 44;
  --type-h1-line: 44;
  --type-h1-font: display;
  --type-h1-weight: 700;
  --type-h1-tracking: -0.01em;
  --type-h1-tablet-size: 32;
  --type-h1-tablet-line: 32;
  --type-h1-phone-size: 28;
  --type-h1-phone-line: 30;
  --type-cover-title-size: 54;
  --type-cover-title-line: 54;
  --type-cover-title-font: display;
  --type-cover-title-weight: 700;
  --type-cover-title-tracking: -0.01em;
  --type-cover-title-tablet-size: 46;
  --type-cover-title-tablet-line: 46;
  --type-cover-title-phone-size: 46;
  --type-cover-title-phone-line: 45;
  --type-cover-title-phoneLandscape-size: 44;
  --type-cover-title-phoneLandscape-line: 43;
  --type-figure-label-size: 15;
  --type-figure-label-line: 17;
  --type-figure-label-font: display;
  --type-figure-label-weight: 600;
  --type-code-size: 13;
  --type-code-line: 20;
  --type-code-font: mono;
  --type-code-tablet-size: 12;
  --type-code-tablet-line: 18;
  --type-code-phone-size: 12;
  --type-code-phone-line: 19;
  --type-floors-text: 15;
  --type-floors-label: 11;
  --type-floors-code: 12;
  --space-unit: 8;
  --space-margin-desktop: 120;
  --space-margin-tabletLandscape: 32;
  --space-margin-tabletPortrait: 32;
  --space-margin-phone: 20;
  --space-margin-phoneLandscape: 24;
  --space-gutter-desktop: 24;
  --space-gutter-tabletLandscape: 16;
  --space-gutter-tabletPortrait: 16;
  --space-gutter-phone: 16;
  --space-gutter-phoneLandscape: 16;
  --space-columns-desktop: 12;
  --space-columns-tabletLandscape: 12;
  --space-columns-tabletPortrait: 8;
  --space-columns-phone: 4;
  --space-columns-phoneLandscape: 8;
  --space-chrome-desktop: 72;
  --space-chrome-tablet: 56;
  --space-chrome-phone: 56;
  --space-chrome-phoneLandscape: 28;
  --space-pageTop-desktop: 80;
  --space-pageTop-tablet: 64;
  --space-page-desktop: 600, 760;
  --space-page-tabletLandscape: 480, 640;
  --space-page-tabletPortrait: 770, 1066;
  --space-pagePadding-desktopVerso: 40, 56, 40, 64;
  --space-pagePadding-desktopRecto: 40, 64, 40, 56;
  --space-pagePadding-tabletVerso: 32, 40, 32, 48;
  --space-pagePadding-tabletRecto: 32, 48, 32, 40;
  --space-pagePadding-tabletPortrait: 40, 85, 40, 85;
  --space-pagePadding-phone: 8, 20, 0, 20;
  --space-textColumn-desktop: 480;
  --space-textColumn-tabletLandscape: 392;
  --space-textColumn-tabletPortrait: 600;
  --space-textColumn-phone: 350;
  --space-textColumn-phoneLandscape: 592;
  --space-runningHeadOffset: 40;
  --space-contentGap-desktop: 32;
  --space-contentGap-tabletLandscape: 22;
  --space-contentGap-tabletPortrait: 32;
  --space-footerOffset: 40;
  --space-progressRule: 2;
  --space-currentUnderline: 2;
  --space-phoneLandscape-paddingTop: 10;
  --space-progressRow-desktopY: 864;
  --space-progressRow-tabletLandscapeY: 712;
  --space-progressRow-tabletPortraitY: 1138;
  --space-progressRow-heightDesktop: 16;
  --space-progressRow-heightTablet: 40;
  --space-edgeButton-size: 48;
  --space-edgeButton-desktopX: 36;
  --space-edgeButton-tabletSize: 40;
  --space-card-heightDesktop: 104;
  --space-card-heightTablet: 88;
  --space-card-heightPhone: 92;
  --space-card-gap: 12;
  --space-card-spineDesktop: 14;
  --space-card-spinePhone: 12;
  --space-coverSpine: 16;
  --space-paragraphGap: 16;
  --space-sectionGap: 24;
  --radius-page: 6;
  --radius-cover: 10;
  --radius-coverSpine: 2;
  --radius-cardSpine: 2;
  --radius-card: 5;
  --radius-button: 3;
  --radius-circle48: 24;
  --radius-circle44: 22;
  --radius-listing: 3;
  --radius-frame: 0;
  --shadow-page: 0 30px 60px rgba(0,0,0,0.45);
  --shadow-pageTablet: 0 24px 48px rgba(0,0,0,0.45);
  --shadow-card: 0 10px 24px rgba(0,0,0,0.35);
  --shadow-cardPhone: 0 8px 18px rgba(0,0,0,0.35);
  --shadow-cover: 0 30px 60px rgba(0,0,0,0.5);
  --motion-pageTurn-duration: 800ms;
  --motion-pageTurn-easing: cubic-bezier(.4,0,.2,1);
  --motion-pageTurn-rotateFrom: 78deg;
  --motion-pageTurn-brightnessFrom: 0.82;
  --motion-pageTurn-perspective: 2400px;
  --motion-pageTurn-reducedMotion: crossfade 150ms;
  --motion-cardHover-transform: translateX(6px);
  --motion-cardHover-duration: 160ms;
  --motion-coverHover-transform: translateY(-5px);
  --motion-coverHover-duration: 180ms;
  --breakpoints-phone-maxWidth: 599;
  --breakpoints-phoneLandscape-maxWidth: 899;
  --breakpoints-phoneLandscape-maxHeight: 479;
  --breakpoints-phoneLandscape-orientation: landscape;
  --breakpoints-tabletPortrait-1-minWidth: 600;
  --breakpoints-tabletPortrait-1-maxWidth: 899;
  --breakpoints-tabletPortrait-2-minWidth: 600;
  --breakpoints-tabletPortrait-2-orientation: portrait;
  --breakpoints-tabletLandscape-minWidth: 900;
  --breakpoints-tabletLandscape-maxWidth: 1279;
  --breakpoints-tabletLandscape-orientation: landscape;
  --breakpoints-desktop-minWidth: 1280;
  --breakpoints-desktop-orientation: landscape;
}

:root {
  --focus-ring: var(--color-cyan);
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

body {
  margin: 0;
  padding: calc(var(--space-sectionGap) * 1px);
  background: var(--color-paper);
  color: var(--color-ink);
  --focus-ring: var(--color-teal-deep);
  font: var(--font-text-weights-regular) calc(var(--type-text-size) * 1px)/calc(var(--type-text-line) * 1px) var(--font-text-family);
}

h1,
h2,
h3 {
  font-family: var(--font-display-family);
}

code {
  font-family: var(--font-mono-family);
}

.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space-card-gap) * 1px);
  padding: 0;
  list-style: none;
}

.ground,
.swatch,
.fill {
  padding: calc(var(--space-paragraphGap) * 1px);
  border-radius: calc(var(--radius-card) * 1px);
}

.swatch,
.fill {
  flex: 1 1 calc(var(--space-card-heightDesktop) * 2px);
  border: 1px solid var(--color-rule);
}

.ratio--below {
  font-weight: var(--font-text-weights-emphasis);
}

.ratio--exempt {
  font-style: italic;
}

.ground--ink,
.fill--ink {
  background: var(--color-ink);
}

.swatch--ink {
  --swatch: var(--color-ink);
  color: var(--swatch);
}

.label--ink {
  color: var(--color-ink);
}

.ground--ink-2,
.fill--ink-2 {
  background: var(--color-ink-2);
}

.swatch--ink-2 {
  --swatch: var(--color-ink-2);
  color: var(--swatch);
}

.label--ink-2 {
  color: var(--color-ink-2);
}

.ground--muted,
.fill--muted {
  background: var(--color-muted);
}

.swatch--muted {
  --swatch: var(--color-muted);
  color: var(--swatch);
}

.label--muted {
  color: var(--color-muted);
}

.ground--rule,
.fill--rule {
  background: var(--color-rule);
}

.swatch--rule {
  --swatch: var(--color-rule);
  color: var(--swatch);
}

.label--rule {
  color: var(--color-rule);
}

.ground--paper,
.fill--paper {
  background: var(--color-paper);
}

.swatch--paper {
  --swatch: var(--color-paper);
  color: var(--swatch);
}

.label--paper {
  color: var(--color-paper);
}

.ground--paper-2,
.fill--paper-2 {
  background: var(--color-paper-2);
}

.swatch--paper-2 {
  --swatch: var(--color-paper-2);
  color: var(--swatch);
}

.label--paper-2 {
  color: var(--color-paper-2);
}

.ground--tint,
.fill--tint {
  background: var(--color-tint);
}

.swatch--tint {
  --swatch: var(--color-tint);
  color: var(--swatch);
}

.label--tint {
  color: var(--color-tint);
}

.ground--teal,
.fill--teal {
  background: var(--color-teal);
}

.swatch--teal {
  --swatch: var(--color-teal);
  color: var(--swatch);
}

.label--teal {
  color: var(--color-teal);
}

.ground--teal-deep,
.fill--teal-deep {
  background: var(--color-teal-deep);
}

.swatch--teal-deep {
  --swatch: var(--color-teal-deep);
  color: var(--swatch);
}

.label--teal-deep {
  color: var(--color-teal-deep);
}

.ground--teal-mid,
.fill--teal-mid {
  background: var(--color-teal-mid);
}

.swatch--teal-mid {
  --swatch: var(--color-teal-mid);
  color: var(--swatch);
}

.label--teal-mid {
  color: var(--color-teal-mid);
}

.ground--cyan,
.fill--cyan {
  background: var(--color-cyan);
}

.swatch--cyan {
  --swatch: var(--color-cyan);
  color: var(--swatch);
}

.label--cyan {
  color: var(--color-cyan);
}

.ground--ground,
.fill--ground {
  background: var(--color-ground);
}

.swatch--ground {
  --swatch: var(--color-ground);
  color: var(--swatch);
}

.label--ground {
  color: var(--color-ground);
}

.ground--ground-2,
.fill--ground-2 {
  background: var(--color-ground-2);
}

.swatch--ground-2 {
  --swatch: var(--color-ground-2);
  color: var(--swatch);
}

.label--ground-2 {
  color: var(--color-ground-2);
}

.ground--ground-3,
.fill--ground-3 {
  background: var(--color-ground-3);
}

.swatch--ground-3 {
  --swatch: var(--color-ground-3);
  color: var(--swatch);
}

.label--ground-3 {
  color: var(--color-ground-3);
}

.ground--ground-rule,
.fill--ground-rule {
  background: var(--color-ground-rule);
}

.swatch--ground-rule {
  --swatch: var(--color-ground-rule);
  color: var(--swatch);
}

.label--ground-rule {
  color: var(--color-ground-rule);
}

.ground--on-ground,
.fill--on-ground {
  background: var(--color-on-ground);
}

.swatch--on-ground {
  --swatch: var(--color-on-ground);
  color: var(--swatch);
}

.label--on-ground {
  color: var(--color-on-ground);
}

.ground--on-ground-2,
.fill--on-ground-2 {
  background: var(--color-on-ground-2);
}

.swatch--on-ground-2 {
  --swatch: var(--color-on-ground-2);
  color: var(--swatch);
}

.label--on-ground-2 {
  color: var(--color-on-ground-2);
}

.ground--on-ground-muted,
.fill--on-ground-muted {
  background: var(--color-on-ground-muted);
}

.swatch--on-ground-muted {
  --swatch: var(--color-on-ground-muted);
  color: var(--swatch);
}

.label--on-ground-muted {
  color: var(--color-on-ground-muted);
}

.ground--code-string,
.fill--code-string {
  background: var(--color-code-string);
}

.swatch--code-string {
  --swatch: var(--color-code-string);
  color: var(--swatch);
}

.label--code-string {
  color: var(--color-code-string);
}

.ground--code-comment,
.fill--code-comment {
  background: var(--color-code-comment);
}

.swatch--code-comment {
  --swatch: var(--color-code-comment);
  color: var(--swatch);
}

.label--code-comment {
  color: var(--color-code-comment);
}

.ground--code-linenum,
.fill--code-linenum {
  background: var(--color-code-linenum);
}

.swatch--code-linenum {
  --swatch: var(--color-code-linenum);
  color: var(--swatch);
}

.label--code-linenum {
  color: var(--color-code-linenum);
}

.swatch.swatch--exempt {
  color: inherit;
}
.swatch.swatch--exempt::before {
  content: "";
  display: inline-block;
  width: calc(var(--space-unit) * 2px);
  height: calc(var(--space-unit) * 2px);
  margin-right: calc(var(--space-unit) * 1px);
  vertical-align: middle;
  background: var(--swatch);
}

.specimen--label {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-display-family);
  font-weight: 500;
  letter-spacing: "0.14em";
  text-transform: "uppercase";
}

.specimen--label--desktop {
  font-size: 12px;
  line-height: 16px;
}

.specimen--chrome {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-display-family);
  font-weight: 500;
  letter-spacing: "0.14em";
  text-transform: "uppercase";
}

.specimen--chrome--desktop {
  font-size: 13px;
  line-height: 16px;
}

.specimen--meta {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-text-family);
  font-weight: var(--font-text-weights-regular);
}

.specimen--meta--desktop {
  font-size: 14px;
  line-height: 20px;
}

.specimen--caption {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-text-family);
  font-weight: var(--font-text-weights-regular);
}

.specimen--caption--desktop {
  font-size: 13px;
  line-height: 20px;
}

.specimen--text {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-text-family);
  font-weight: var(--font-text-weights-regular);
}

.specimen--text--desktop {
  font-size: 16px;
  line-height: 24px;
}

.specimen--text--phone {
  font-size: 15px;
  line-height: 22px;
}

.specimen--text--tabletPortrait {
  font-size: 18px;
  line-height: 28px;
}

.specimen--card-title {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-display-family);
  font-weight: 700;
  letter-spacing: "-0.005em";
}

.specimen--card-title--desktop {
  font-size: 27px;
  line-height: 28px;
}

.specimen--card-title--tablet {
  font-size: 22px;
  line-height: 24px;
}

.specimen--card-title--phone {
  font-size: 21px;
  line-height: 24px;
}

.specimen--card-title--phoneLandscape {
  font-size: 20px;
  line-height: 22px;
}

.specimen--article-title {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-display-family);
  font-weight: 700;
}

.specimen--article-title--desktop {
  font-size: 31px;
  line-height: 32px;
}

.specimen--article-title--tablet {
  font-size: 26px;
  line-height: 28px;
}

.specimen--article-title--tabletPortrait {
  font-size: 36px;
  line-height: 38px;
}

.specimen--article-title--phone {
  font-size: 28px;
  line-height: 30px;
}

.specimen--article-title--phoneLandscape {
  font-size: 26px;
  line-height: 28px;
}

.specimen--notice-title {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-display-family);
  font-weight: 700;
}

.specimen--notice-title--desktop {
  font-size: 27px;
  line-height: 28px;
}

.specimen--h1 {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-display-family);
  font-weight: 700;
  letter-spacing: "-0.01em";
}

.specimen--h1--desktop {
  font-size: 44px;
  line-height: 44px;
}

.specimen--h1--tablet {
  font-size: 32px;
  line-height: 32px;
}

.specimen--h1--phone {
  font-size: 28px;
  line-height: 30px;
}

.specimen--cover-title {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-display-family);
  font-weight: 700;
  letter-spacing: "-0.01em";
}

.specimen--cover-title--desktop {
  font-size: 54px;
  line-height: 54px;
}

.specimen--cover-title--tablet {
  font-size: 46px;
  line-height: 46px;
}

.specimen--cover-title--phone {
  font-size: 46px;
  line-height: 45px;
}

.specimen--cover-title--phoneLandscape {
  font-size: 44px;
  line-height: 43px;
}

.specimen--figure-label {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-display-family);
  font-weight: 600;
}

.specimen--figure-label--desktop {
  font-size: 15px;
  line-height: 17px;
}

.specimen--code {
  margin: 0 0 calc(var(--space-paragraphGap) * 1px);
  font-family: var(--font-mono-family);
  font-weight: var(--font-text-weights-regular);
}

.specimen--code--desktop {
  font-size: 13px;
  line-height: 20px;
}

.specimen--code--tablet {
  font-size: 12px;
  line-height: 18px;
}

.specimen--code--phone {
  font-size: 12px;
  line-height: 19px;
}