/* HulyNet's pages (hulyscale-site): a terminal's restraint, set in good type. Black on
   paper with one amber accent, monospace for structure (headings, numbers, code, labels),
   a humanist sans for reading. IBM Plex, served from here (fonts/, SIL OFL 1.1). */

@font-face {
  font-family: "IBM Plex Mono";
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-cyrillic-400-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-cyrillic-600-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-cyrillic-400-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-latin-400-italic.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-cyrillic-400-italic.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-cyrillic-600-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

:root {
  --paper: #f6f5f0;
  --ink: #151513;
  --muted: #64625b;
  --rule: #d8d5ca;
  --faint: #ecebe4;
  --accent: #b0520a;
  --accent-soft: #f6e7d3;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, "DejaVu Sans Mono",
    monospace;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --measure: 44rem;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0e0e0d;
    --ink: #e7e5de;
    --muted: #97948a;
    --rule: #2d2c28;
    --faint: #171715;
    --accent: #eea041;
    --accent-soft: #2a2015;
  }
}

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

html {
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.62 var(--sans);
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  font-kerning: normal;
}
body {
  margin: 0 auto;
  max-width: calc(var(--measure) + 2.5rem);
  padding: 0 1.25rem;
}
::selection {
  background: var(--accent-soft);
}

/* The masthead: the name, a cursor, the languages. */
.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0 0.75rem;
  border-bottom: 1px solid var(--ink);
  font-family: var(--mono);
}
.brand {
  color: var(--ink);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}
.cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  margin-left: 0.15em;
  vertical-align: -0.15em;
  background: var(--accent);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .cursor {
    animation: none;
  }
}
.langs {
  display: flex;
  gap: 0.25rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}
.langs a,
.langs span {
  padding: 0.1rem 0.45rem;
  border: 1px solid transparent;
  color: var(--muted);
  text-decoration: none;
}
.langs a:hover {
  color: var(--ink);
  border-color: var(--rule);
}
.langs [aria-current] {
  color: var(--ink);
  border-color: var(--ink);
}

/* The page. */
.doc {
  padding: 1rem 0 3rem;
}
.doc-title {
  margin: 2.5rem 0 1.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 3px double var(--rule);
  font: 600 2rem/1.2 var(--mono);
  letter-spacing: -0.01em;
}
p,
li {
  hyphens: auto;
  overflow-wrap: break-word;
}
p {
  margin: 0 0 1rem;
}
a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
a:hover {
  color: var(--accent);
}
strong {
  font-weight: 600;
}
hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--rule);
}

/* Sections: monospace, numbered in the accent, a rule to the right edge. */
h2,
h3,
h4 {
  font-family: var(--mono);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.005em;
  scroll-margin-top: 1rem;
}
h2 {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin: 3.25rem 0 1.1rem;
  font-size: 1.3rem;
}
h2::after {
  content: "";
  flex: 1;
  min-width: 2rem;
  border-top: 1px solid var(--rule);
  transform: translateY(-0.3em);
}
h3 {
  margin: 2.25rem 0 0.75rem;
  font-size: 1.05rem;
}
h4 {
  margin: 1.75rem 0 0.5rem;
  font-size: 0.95rem;
}
.anchor {
  text-decoration: none;
}
.secnum {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
h3 .secnum {
  color: var(--muted);
}
.anchor:hover .secnum {
  text-decoration: underline;
}

/* The table of contents, between rules. */
.toc {
  margin: 2rem 0 2.5rem;
  padding: 0.9rem 0 1rem;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.88rem;
}
.toc-title {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
.toc ol ol {
  margin: 0.15rem 0 0.45rem 2.1rem;
  font-size: 0.82rem;
}
.toc li {
  margin: 0.2rem 0;
}
.toc a {
  text-decoration: none;
}
.toc a:hover {
  text-decoration: underline;
  text-decoration-color: var(--accent);
}
.toc .secnum {
  display: inline-block;
  min-width: 2.1rem;
}
.toc ol ol .secnum {
  min-width: 2.5rem;
  color: var(--muted);
}

/* Lists: steps numbered in monospace. */
ul,
ol {
  margin: 0 0 1rem;
  padding-left: 1.6rem;
}
li {
  margin: 0.3rem 0;
}
li::marker {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.9em;
}
li > ul,
li > ol {
  margin: 0.3rem 0;
}

/* Code: inline, and listings with their language and a copy button. */
code,
kbd,
pre {
  font-family: var(--mono);
  font-size: 0.86em;
}
:not(pre) > code {
  padding: 0.08em 0.32em;
  border-radius: 3px;
  background: var(--faint);
  overflow-wrap: anywhere;
}
kbd {
  padding: 0.05em 0.35em;
  border: 1px solid var(--rule);
  border-bottom-width: 2px;
  border-radius: 3px;
}
.listing {
  position: relative;
  margin: 0.6rem 0 1.25rem;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  background: var(--faint);
}
/* The listing's bar, as a terminal window's: the language, and the copy button. */
.listing figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 1.75rem;
  padding: 0 0.35rem 0 0.75rem;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font: 0.68rem/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.listing pre {
  margin: 0;
  padding: 0.95rem 1rem 0.95rem 1rem;
  overflow-x: auto;
  line-height: 1.55;
  font-size: 0.84rem;
  tab-size: 4;
}
.listing code {
  font-size: inherit;
}
.listing .c {
  color: var(--muted);
}
.copy {
  padding: 0.12rem 0.5rem;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: var(--muted);
  font: 0.68rem/1.4 var(--mono);
  letter-spacing: 0.06em;
  text-transform: lowercase;
  cursor: pointer;
}
.copy:hover,
.copy:focus-visible {
  color: var(--ink);
  border-color: var(--rule);
  background: var(--paper);
}
.copy.done {
  color: var(--accent);
  border-color: var(--accent);
}

/* Admonitions, as AsciiDoc sets them: the label in its own column. */
.admonition {
  display: grid;
  grid-template-columns: 7rem 1fr;
  margin: 1.5rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.admonition-label {
  margin: 0;
  padding: 0.85rem 0.8rem 0.85rem 0;
  border-right: 1px solid var(--rule);
  color: var(--muted);
  font: 600 0.72rem/1.9 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.admonition-body {
  padding: 0.85rem 0 0.85rem 1rem;
}
.admonition-body > :last-child {
  margin-bottom: 0;
}
.admonition.warning .admonition-label,
.admonition.caution .admonition-label,
.admonition.important .admonition-label {
  color: var(--accent);
}
.admonition.warning,
.admonition.caution {
  border-top-color: var(--accent);
}
@media (max-width: 34rem) {
  .admonition {
    grid-template-columns: 1fr;
  }
  .admonition-label {
    padding: 0.6rem 0 0;
    border-right: 0;
  }
  .admonition-body {
    padding: 0.2rem 0 0.85rem;
  }
}

/* Tables: thin rules, monospace heads. */
.table {
  margin: 0.6rem 0 1.4rem;
  overflow-x: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}
th,
td {
  padding: 0.45rem 0.9rem 0.45rem 0;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}
th {
  border-bottom-color: var(--ink);
  color: var(--muted);
  font: 600 0.72rem/1.5 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* The invite code, which the page fills into its commands (site.js). */
.invite {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1rem;
  margin: 1.5rem 0 0.5rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
}
.invite label {
  color: var(--muted);
  font: 600 0.72rem/1.9 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.invite input {
  flex: 1;
  min-width: 14rem;
  padding: 0.2rem 0;
  border: 0;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font: 1rem/1.4 var(--mono);
  letter-spacing: 0.04em;
}
.invite input:focus {
  outline: none;
  border-bottom-color: var(--accent);
}
.invite input.filled {
  color: var(--accent);
}

blockquote {
  margin: 1.25rem 0;
  padding-left: 1rem;
  border-left: 2px solid var(--rule);
  color: var(--muted);
}

.colophon {
  margin-bottom: 2rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--ink);
  color: var(--muted);
  font: 0.75rem/1.5 var(--mono);
  letter-spacing: 0.04em;
}

@media print {
  .masthead .langs,
  .copy,
  .cursor {
    display: none;
  }
  .listing {
    break-inside: avoid;
  }
}