:root {
  --paper: #f3f0e5;
  --paper-raised: #faf8ef;
  --ink: #171713;
  --ink-soft: #57574f;
  --grid: rgba(23, 23, 19, 0.075);
  --rule: #171713;
  --lime: #c9ff36;
  --lime-deep: #aee421;
  --code: #20211d;
  --code-ink: #f5f2e7;
  --danger: #df5f44;
  --shadow: 8px 8px 0 var(--ink);
  --mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Consolas, monospace;
  --sans: "Avenir Next", Avenir, "Segoe UI", Helvetica, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 1rem;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  font-family: var(--sans);
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 4px;
  box-shadow: 0 0 0 6px var(--lime);
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.55rem 0.8rem;
  color: var(--ink);
  background: var(--lime);
  border: 2px solid var(--ink);
  font: 700 0.75rem/1 var(--mono);
  text-transform: uppercase;
  transform: translateY(-160%);
}

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

.site-frame {
  width: min(1180px, calc(100% - 3rem));
  margin: 1.5rem auto 3rem;
}

.site-header {
  margin-bottom: 2rem;
  background: var(--paper-raised);
  border: 2px solid var(--rule);
  box-shadow: 6px 6px 0 var(--ink);
}

.utility-bar,
.masthead,
.site-nav {
  display: flex;
  align-items: center;
}

.utility-bar {
  justify-content: space-between;
  gap: 1rem;
  min-height: 2rem;
  padding: 0.35rem 0.75rem;
  color: var(--paper-raised);
  background: var(--ink);
  font: 650 0.68rem/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.utility-bar span:last-child {
  color: var(--lime);
}

.masthead {
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem;
  border-bottom: 2px solid var(--rule);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 3.2rem;
  aspect-ratio: 1;
  place-items: center;
  color: var(--ink);
  background: var(--lime);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  font: 800 0.8rem/1 var(--mono);
  letter-spacing: -0.08em;
  transform: rotate(-2deg);
}

.brand-copy {
  display: grid;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.95;
}

.brand-copy small {
  margin-top: 0.45rem;
  font: 650 0.66rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.repo-link {
  flex: 0 0 auto;
  padding: 0.6rem 0.8rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  font: 700 0.68rem/1 var(--mono);
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.repo-link:hover {
  background: var(--lime);
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

.site-nav {
  overflow-x: auto;
  scrollbar-width: thin;
}

.site-nav a {
  display: flex;
  flex: 1 0 auto;
  align-items: baseline;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.85rem;
  padding: 0.75rem 0.9rem;
  border-right: 1px solid var(--ink);
  font: 700 0.72rem/1 var(--mono);
  letter-spacing: 0.025em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a:last-child {
  border-right: 0;
}

.site-nav a span {
  color: var(--ink-soft);
  font-size: 0.58rem;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--lime);
}

.site-nav a[aria-current="page"]::after {
  width: 0.42rem;
  height: 0.42rem;
  margin-left: 0.25rem;
  background: var(--ink);
  border-radius: 50%;
  content: "";
}

.document {
  position: relative;
  min-width: 0;
  padding: clamp(1.5rem, 4vw, 4rem);
  overflow: hidden;
  background: var(--paper-raised);
  border: 2px solid var(--rule);
  box-shadow: var(--shadow);
}

.document::before {
  position: absolute;
  top: 0;
  right: 0;
  width: 5.5rem;
  height: 0.65rem;
  background: repeating-linear-gradient(90deg, var(--ink) 0 5px, transparent 5px 10px);
  content: "";
}

.document > * {
  max-width: 78ch;
}

.document > h1,
.document > h2,
.document > table,
.document > pre,
.document > .callout {
  max-width: none;
}

h1,
h2,
h3,
h4 {
  color: var(--ink);
}

h1 {
  max-width: 12ch !important;
  margin: 0 0 1.6rem;
  font-family: var(--serif);
  font-size: clamp(3.2rem, 8vw, 6.8rem);
  font-weight: 800;
  letter-spacing: -0.065em;
  line-height: 0.82;
}

.page-index h1 {
  font-size: clamp(4rem, 11vw, 8.8rem);
}

.document > h1 + p {
  max-width: 60ch;
  margin: 0 0 1.75rem;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.018em;
  line-height: 1.32;
}

h2 {
  display: grid;
  grid-template-columns: minmax(3.5rem, 0.14fr) 1fr;
  gap: 1rem;
  align-items: baseline;
  margin: 3.5rem 0 1.25rem;
  padding-top: 0.8rem;
  border-top: 2px solid var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.75rem, 4vw, 3rem);
  letter-spacing: -0.04em;
  line-height: 1;
}

h2::before {
  color: var(--ink-soft);
  font: 700 0.64rem/1 var(--mono);
  letter-spacing: 0.08em;
  content: "SECTION";
}

h3 {
  margin: 2.25rem 0 0.75rem;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.6vw, 1.75rem);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

h4 {
  margin: 1.75rem 0 0.5rem;
  font: 800 0.8rem/1.2 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

p,
li,
td,
th {
  overflow-wrap: anywhere;
}

p {
  margin: 0.75rem 0 1rem;
}

ul,
ol {
  padding-left: 1.35rem;
}

li {
  margin-block: 0.35rem;
  padding-left: 0.25rem;
}

li::marker {
  font-family: var(--mono);
  font-weight: 800;
}

strong {
  font-weight: 800;
}

.callout {
  position: relative;
  margin: 2rem 0;
  padding: 1.25rem 1.35rem 1.15rem 4rem;
  background: var(--lime);
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
}

.callout::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  display: grid;
  width: 2.75rem;
  place-items: center;
  color: var(--paper-raised);
  background: var(--ink);
  font: 800 0.75rem/1 var(--mono);
  content: "!";
}

.callout p {
  margin: 0;
}

blockquote {
  margin: 1.75rem 0;
  padding: 0.4rem 1.25rem;
  background: rgba(201, 255, 54, 0.22);
  border-left: 6px solid var(--ink);
  font-family: var(--serif);
  font-size: 1.15rem;
}

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

code {
  padding: 0.08em 0.3em;
  color: var(--ink);
  background: #e5e2d5;
  border: 1px solid #b9b6aa;
  font-size: 0.88em;
}

pre {
  position: relative;
  margin: 1.25rem 0 1.75rem;
  padding: 2.45rem 1.2rem 1.15rem;
  overflow-x: auto;
  color: var(--code-ink);
  background: var(--code);
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 #8d8c83;
  font-size: 0.86rem;
  line-height: 1.65;
  tab-size: 2;
}

pre:focus-visible,
table:focus-visible {
  outline-offset: 3px;
}

pre::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  padding: 0.45rem 0.75rem;
  color: var(--ink);
  background: var(--lime);
  border-bottom: 2px solid var(--ink);
  font: 800 0.62rem/1 var(--mono);
  letter-spacing: 0.08em;
  content: "COMMAND / COPY EXACTLY";
}

pre code {
  padding: 0;
  color: inherit;
  background: transparent;
  border: 0;
  white-space: pre;
}

table {
  display: block;
  width: 100%;
  margin: 1.25rem 0 2rem;
  overflow-x: auto;
  border: 2px solid var(--ink);
  border-collapse: collapse;
  background: var(--paper-raised);
  font-size: 0.9rem;
}

thead,
tbody,
tr {
  width: 100%;
}

th,
td {
  min-width: 10rem;
  padding: 0.8rem 0.9rem;
  text-align: left;
  vertical-align: top;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

th:last-child,
td:last-child {
  border-right: 0;
}

tbody tr:last-child td {
  border-bottom: 0;
}

th {
  color: var(--paper-raised);
  background: var(--ink);
  font: 750 0.68rem/1.35 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

tbody tr:nth-child(even) td {
  background: rgba(23, 23, 19, 0.035);
}

td:first-child {
  font-weight: 700;
}

.muted,
.meta {
  color: var(--ink-soft);
}

.site-footer {
  display: grid;
  grid-template-columns: 1.35fr 0.75fr 0.75fr 1.15fr;
  gap: 1.5rem;
  margin-top: 2rem;
  padding: 1.5rem;
  color: var(--paper-raised);
  background: var(--ink);
  border: 2px solid var(--ink);
}

.site-footer > div:not(.footer-stamp) {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.site-footer a {
  width: fit-content;
  margin: 0.12rem 0;
  color: var(--paper-raised);
  font-size: 0.82rem;
}

.footer-stamp {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-stamp span {
  display: grid;
  width: 3rem;
  aspect-ratio: 1;
  place-items: center;
  color: var(--ink);
  background: var(--lime);
  font: 800 0.72rem/1 var(--mono);
}

.footer-stamp strong {
  font-family: var(--serif);
  font-size: 1.25rem;
}

.footer-label {
  margin: 0 0 0.5rem;
  color: var(--lime);
  font: 800 0.65rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-note {
  margin: 0;
  color: #bdbbb1;
  font: 0.72rem/1.6 var(--mono);
}

.footer-note a {
  font-size: inherit;
}

@media (max-width: 760px) {
  .site-frame {
    width: min(100% - 1.5rem, 1180px);
    margin-top: 0.75rem;
  }

  .utility-bar span:first-child {
    display: none;
  }

  .utility-bar {
    justify-content: flex-end;
  }

  .masthead {
    align-items: flex-start;
  }

  .repo-link {
    padding: 0.55rem;
    font-size: 0.58rem;
  }

  .site-nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow: visible;
  }

  .site-nav a {
    min-width: 0;
    border-right: 1px solid var(--ink);
    border-bottom: 1px solid var(--ink);
    font-size: 0.62rem;
  }

  .site-nav a:nth-child(3n) {
    border-right: 0;
  }

  .site-nav a:nth-last-child(-n + 3) {
    border-bottom: 0;
  }

  .site-nav a[aria-current="page"]::after {
    display: none;
  }

  .document {
    padding: 2.2rem 1.15rem 2.5rem;
    box-shadow: 5px 5px 0 var(--ink);
  }

  h1,
  .page-index h1 {
    font-size: clamp(2.85rem, 15vw, 4.8rem);
  }

  h2 {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .callout {
    padding: 3.25rem 1rem 1rem;
  }

  .callout::before {
    right: 0;
    bottom: auto;
    width: auto;
    height: 2.4rem;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }

  .footer-stamp,
  .footer-note {
    grid-column: 1 / -1;
  }
}

@media (max-width: 420px) {
  h1,
  .page-index h1 {
    max-width: 100% !important;
    font-size: clamp(2.25rem, 13vw, 3.5rem);
    letter-spacing: -0.075em;
    overflow-wrap: anywhere;
  }

  .masthead {
    flex-direction: column;
    align-items: stretch;
    gap: 0.9rem;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    flex: 0 0 auto;
    width: 2.65rem;
  }

  .brand-copy {
    min-width: 0;
    font-size: 1.3rem;
  }

  .brand-copy small {
    font-size: 0.55rem;
  }

  .repo-link {
    align-self: stretch;
    max-width: none;
    text-align: center;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  body {
    background: #fff;
  }

  .site-frame {
    width: 100%;
    margin: 0;
  }

  .site-header,
  .document {
    box-shadow: none;
  }

  .skip-link,
  .repo-link,
  .site-nav,
  .site-footer {
    display: none;
  }

  pre {
    color: #000 !important;
    background: #fff !important;
    border: 2px solid #000;
    box-shadow: none;
    white-space: pre-wrap;
  }

  pre::before {
    color: #000 !important;
    background: #fff !important;
    border-bottom: 1px solid #000;
  }

  pre code {
    color: #000 !important;
    background: transparent !important;
    white-space: pre-wrap;
  }
}