/*
 * The blendx docs site: the ledger palette and the type of the walkthrough, set for reading.
 * Paper and ink, one green accent, dark terminals for shell blocks, Source Serif for prose.
 */
:root {
  --paper: #f1f3ee;
  --sheet: #e7ece4;
  --ink: #1d2420;
  --muted: #5b675f;
  --rule: #d3dbd0;
  --accent: #1e6b57;
  --accent-soft: rgba(30, 107, 87, 0.12);
  --term: #121a16;
  --term-ink: #d6e2da;
  --tok-keyword: #1e6b57;
  --tok-string: #8a4b1e;
  --tok-number: #2e5a8a;
  --tok-comment: #7a877f;
  --tok-key: #1d2420;
  --font-display: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --content: 45rem;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #111714;
    --sheet: #18201c;
    --ink: #e2e9e4;
    --muted: #8fa096;
    --rule: #26312b;
    --accent: #6dbba3;
    --accent-soft: rgba(109, 187, 163, 0.14);
    --term: #0a0f0c;
    --term-ink: #d2ddd6;
    --tok-keyword: #7fc7ae;
    --tok-string: #d9a774;
    --tok-number: #93b8e3;
    --tok-comment: #6f7f76;
    --tok-key: #e2e9e4;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.04rem / 1.7 var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

:where(a, button):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Layout: the page list, the page, and what is on it */
.site {
  display: grid;
  grid-template-columns: 16.5rem minmax(0, 1fr) 13.5rem;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.6rem 1rem 2rem 1.25rem;
  border-right: 1px solid var(--rule);
}

.brand {
  font: 650 1.3rem / 1 var(--font-display);
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}

.brand .mark {
  color: var(--accent);
}

.tagline {
  margin: 0.45rem 0 0;
  font: 500 0.72rem / 1.3 var(--font-mono);
  letter-spacing: 0.03em;
  color: var(--muted);
}

.nav-group {
  display: grid;
  gap: 0.3rem;
}

.nav-label {
  margin: 0;
  font: 600 0.7rem / 1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav-group ul {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-group a {
  display: block;
  padding: 0.32rem 0.55rem;
  border-radius: 3px;
  color: var(--ink);
  text-decoration: none;
  font: 450 0.93rem / 1.3 var(--font-display);
}

.nav-group a:hover {
  background: var(--sheet);
}

.nav-group a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.content {
  min-width: 0;
  padding: 2.6rem clamp(1.25rem, 4vw, 3.5rem) 3rem;
}

.toc {
  position: sticky;
  top: 0;
  align-self: start;
  padding: 2.8rem 1.25rem 2rem 0;
}

.toc-label {
  margin: 0 0 0.6rem;
  font: 600 0.7rem / 1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.toc ol {
  display: grid;
  gap: 0.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--rule);
}

.toc a {
  display: block;
  padding: 0.24rem 0 0.24rem 0.8rem;
  color: var(--muted);
  text-decoration: none;
  font: 450 0.85rem / 1.35 var(--font-display);
}

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

/* The page */
.prose {
  max-width: var(--content);
}

.prose h1 {
  margin: 0 0 1.3rem;
  font: 650 clamp(2rem, 3.4vw, 2.65rem) / 1.08 var(--font-display);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.prose h2 {
  margin: 2.7rem 0 0.8rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--rule);
  font: 650 1.55rem / 1.2 var(--font-display);
  letter-spacing: -0.012em;
  text-wrap: balance;
}

.prose h3 {
  margin: 2rem 0 0.5rem;
  font: 600 1.16rem / 1.3 var(--font-display);
}

.prose :is(h2, h3) {
  scroll-margin-top: 1.5rem;
}

.prose p,
.prose li {
  max-width: 68ch;
}

.prose p {
  margin: 0 0 1rem;
}

.prose :is(ul, ol) {
  margin: 0 0 1.1rem;
  padding-left: 1.3rem;
}

.prose li {
  margin: 0.3rem 0;
}

.prose li > :is(ul, ol) {
  margin: 0.3rem 0 0;
}

.prose strong {
  font-weight: 600;
}

.prose :not(pre) > code {
  padding: 0.05em 0.3em;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--sheet);
  font: 400 0.86em var(--font-mono);
  font-variant-ligatures: none;
  overflow-wrap: anywhere;
}

.prose pre {
  position: relative;
  margin: 0 0 1.3rem;
  border: 1px solid var(--rule);
  border-radius: 5px;
  background: var(--sheet);
  overflow-x: auto;
}

.prose pre code {
  display: block;
  padding: 0.95rem 1.1rem;
  font: 400 0.84rem / 1.62 var(--font-mono);
  font-variant-ligatures: none;
  tab-size: 2;
}

.prose pre:has(> code.language-sh) {
  border-color: var(--term);
  background: var(--term);
  color: var(--term-ink);
}

.copy {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--paper);
  color: var(--muted);
  font: 500 0.72rem / 1 var(--font-mono);
  cursor: pointer;
  opacity: 0.7;
}

.prose pre:hover .copy,
.copy:focus-visible {
  opacity: 1;
}

.table-wrap {
  margin: 0 0 1.4rem;
  border: 1px solid var(--rule);
  border-radius: 5px;
  overflow-x: auto;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
  line-height: 1.45;
}

.prose th {
  background: var(--sheet);
  color: var(--muted);
  font: 600 0.72rem / 1.25 var(--font-mono);
  letter-spacing: 0.08em;
  text-align: left;
  text-transform: uppercase;
}

.prose :is(th, td) {
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

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

.prose blockquote {
  margin: 0 0 1rem;
  padding: 0.2rem 1rem;
  border-left: 2px solid var(--accent);
  color: var(--muted);
}

/* Previous and next, and the footer */
.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: var(--content);
  margin-top: 3rem;
}

.pager a {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 5px;
  color: var(--ink);
  text-decoration: none;
}

.pager a:hover {
  border-color: var(--accent);
}

.pager .next {
  grid-column: 2;
  text-align: right;
}

.pager .dir {
  font: 500 0.72rem / 1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.pager .name {
  font: 600 1rem / 1.3 var(--font-display);
}

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--content);
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font: 400 0.8rem / 1.5 var(--font-mono);
}

/* Code colour, as in the walkthrough */
.hljs-keyword,
.hljs-selector-tag,
.hljs-built_in,
.hljs-type {
  color: var(--tok-keyword);
}

.hljs-string,
.hljs-code,
.hljs-regexp {
  color: var(--tok-string);
}

.hljs-number,
.hljs-literal {
  color: var(--tok-number);
}

.hljs-comment {
  color: var(--tok-comment);
  font-style: italic;
}

.hljs-attr,
.hljs-attribute,
.hljs-property,
.hljs-title {
  color: var(--tok-key);
  font-weight: 600;
}

.prose pre:has(> code.language-sh) :is(.hljs-built_in, .hljs-keyword, .hljs-string) {
  color: var(--term-ink);
}

/* Smaller screens: no contents column, then the page list behind a button */
.topbar {
  display: none;
}

@media (max-width: 1180px) {
  .site {
    grid-template-columns: 16.5rem minmax(0, 1fr);
  }

  .toc {
    display: none;
  }
}

@media (max-width: 860px) {
  .site {
    grid-template-columns: minmax(0, 1fr);
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.1rem;
    border-bottom: 1px solid var(--rule);
    background: var(--paper);
  }

  .menu-toggle {
    padding: 0.45rem 0.8rem;
    border: 1px solid var(--rule);
    border-radius: 4px;
    background: var(--paper);
    color: var(--ink);
    font: 550 0.88rem / 1 var(--font-display);
    cursor: pointer;
  }

  .sidebar {
    position: fixed;
    inset: 3.35rem 0 0;
    z-index: 10;
    height: auto;
    border-right: 0;
    background: var(--paper);
    visibility: hidden;
  }

  .sidebar-head {
    display: none;
  }

  .site.menu-open .sidebar {
    visibility: visible;
  }

  .content {
    padding-top: 1.8rem;
  }

  .pager {
    grid-template-columns: minmax(0, 1fr);
  }

  .pager .next {
    grid-column: auto;
  }
}