/* flakedoc's stylesheet.
 *
 * Two colour schemes, one set of custom properties. Every colour in the site --
 * including the syntax highlighting, which is emitted as classes rather than
 * inline styles for exactly this reason -- resolves through a variable defined
 * once on :root and redefined once under prefers-color-scheme: dark.
 *
 * The accents come from the flakedoc.toml [theme] table.
 */

:root {
  --accent: #89b4fa;
  --accent-quiet: color-mix(in srgb, var(--accent) 16%, transparent);

  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-inset: #eef0f4;
  --surface: #ffffff;
  --border: #dfe3e9;
  --border-strong: #c6ccd6;

  --fg: #1b1f24;
  --fg-muted: #59636e;
  --fg-faint: #7d8792;

  --code-bg: #f6f7f9;
  --shadow: 0 1px 2px rgb(27 31 36 / 6%), 0 3px 12px rgb(27 31 36 / 4%);

  --hl-comment: #6b7280;
  --hl-string: #0a7d55;
  --hl-keyword: #9333ea;
  --hl-constant: #b45309;
  --hl-entity: #1d4ed8;
  --hl-variable: #b91c1c;
  --hl-support: #0e7490;
  --hl-invalid: #dc2626;

  --sidebar-width: 16rem;
  --content-max: 56rem;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #89b4fa;

    --bg: #12141a;
    --bg-soft: #181b22;
    --bg-inset: #1f232c;
    --surface: #171a21;
    --border: #2a2f3a;
    --border-strong: #3a414f;

    --fg: #e4e7ee;
    --fg-muted: #a3acbb;
    --fg-faint: #7b8494;

    --code-bg: #1a1d25;
    --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 3px 14px rgb(0 0 0 / 30%);

    --hl-comment: #7c8496;
    --hl-string: #a6e3a1;
    --hl-keyword: #cba6f7;
    --hl-constant: #fab387;
    --hl-entity: #89b4fa;
    --hl-variable: #f38ba8;
    --hl-support: #94e2d5;
    --hl-invalid: #f38ba8;

    color-scheme: dark;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  /* The page body itself never scrolls sideways; wide things get their own
   * scroll container. */
  overflow-x: hidden;
}

code,
pre,
kbd {
  font-family:
    ui-monospace,
    "SF Mono",
    "JetBrains Mono",
    "Fira Code",
    "Cascadia Code",
    Menlo,
    Consolas,
    monospace;
  font-size: 0.875em;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: var(--bg);
}

.skip:focus {
  left: 0;
}

/* ---------------------------------------------------------------- top bar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 650;
  color: var(--fg);
  white-space: nowrap;
}

.brand:hover {
  text-decoration: none;
  color: var(--accent);
}

.repo-link {
  color: var(--fg-muted);
  font-size: 0.875rem;
  white-space: nowrap;
}

.search-wrap {
  position: relative;
  flex: 1 1 auto;
  max-width: 28rem;
  margin-left: auto;
}

.search-input {
  width: 100%;
  padding: 0.4rem 0.7rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--fg);
  font: inherit;
  font-size: 0.9rem;
}

.search-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  background: var(--bg);
}

.search-input.big {
  font-size: 1rem;
  padding: 0.6rem 0.9rem;
}

.search-results {
  position: absolute;
  top: calc(100% + 0.35rem);
  left: 0;
  right: 0;
  max-height: 24rem;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
  z-index: 40;
}

.search-results a {
  display: block;
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
}

.search-results a:last-child {
  border-bottom: 0;
}

.search-results a:hover,
.search-results a.selected {
  background: var(--accent-quiet);
  text-decoration: none;
}

.search-results .r-name {
  font-family:
    ui-monospace,
    Menlo,
    Consolas,
    monospace;
  font-size: 0.85rem;
}

.search-results .r-meta {
  display: block;
  color: var(--fg-muted);
  font-size: 0.78rem;
}

.nav-toggle {
  display: none;
  width: 2rem;
  height: 2rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  color: var(--fg);
  cursor: pointer;
}

.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  display: block;
  width: 1rem;
  height: 2px;
  margin: 0 auto;
  background: currentColor;
  content: "";
}

.nav-toggle-bar::before {
  transform: translateY(-5px);
}

.nav-toggle-bar::after {
  transform: translateY(3px);
}

/* ----------------------------------------------------------------- layout */

.layout {
  display: flex;
  align-items: flex-start;
  max-width: 84rem;
  margin: 0 auto;
  gap: 2rem;
  padding: 0 1rem;
}

.sidebar {
  position: sticky;
  top: 3.4rem;
  flex: 0 0 var(--sidebar-width);
  width: var(--sidebar-width);
  max-height: calc(100vh - 3.4rem);
  overflow-y: auto;
  padding: 1.5rem 0;
}

.nav,
.nav-children {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-section > a {
  display: block;
  padding: 0.3rem 0.5rem;
  border-radius: 0.35rem;
  color: var(--fg);
  font-weight: 600;
  font-size: 0.92rem;
}

.nav-section.active > a {
  color: var(--accent);
  background: var(--accent-quiet);
}

.nav-children {
  list-style: none;
  margin: 0.15rem 0 0.6rem 0.5rem;
  padding: 0;
  border-left: 1px solid var(--border);
}

/* One guide rail per section, not one per level. A second rail 8px inside the
   first reads as a rendering fault rather than as depth, and because the inner
   one restarts at every machine it also breaks into disconnected stubs. Depth
   here is carried by indentation alone. */
.nav-grandchildren {
  list-style: none;
  margin: 0 0 0.5rem;
  padding: 0;
}

.nav-children li a {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.2rem 0.6rem;
  color: var(--fg-muted);
  font-size: 0.86rem;
  overflow-wrap: anywhere;
}

.nav-children li.active > a {
  color: var(--accent);
  font-weight: 600;
}

/* A machine: a heading with no page behind it, so it must not look clickable.
   Sized and spaced to sit between the section above it and the configurations
   below -- at the section's own weight it competed with "Hosts" for the same
   role, and at a link's colour it looked like one. */
.nav-heading-label {
  display: block;
  padding: 0.15rem 0.6rem 0.1rem;
  color: var(--fg-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

/* Groups need air between them, but not above the first one -- that gap is
   already the section's. */
.nav-child.nav-heading + .nav-child.nav-heading .nav-heading-label {
  margin-top: 0.35rem;
}

/* The configurations belong to the machine above them, so they indent past it.
   This is the only thing carrying that relationship now the inner rail is gone. */
.nav-grandchildren li a {
  padding-left: 1.25rem;
}

.nav-child.nav-heading.active > .nav-heading-label {
  color: var(--accent);
}

.nav-tag {
  flex: 0 0 auto;
  margin-left: auto;
  padding: 0 0.3rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg-faint);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.fact {
  margin: 1rem 0 1.5rem;
  scroll-margin-top: 4rem;
}

.fact h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  overflow-wrap: anywhere;
}

.fact h3 code {
  background: none;
  border: 0;
  padding: 0;
  font-size: 1em;
}

.fact:hover .anchor {
  opacity: 1;
}

.fact .option-description > :first-child {
  margin-top: 0;
}

.machine {
  scroll-margin-top: 4rem;
}

.machine h2 > code {
  background: none;
  border: 0;
  padding: 0;
  font-size: 1em;
}

.content {
  flex: 1 1 auto;
  min-width: 0;
  max-width: var(--content-max);
  padding: 1.5rem 0 4rem;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  max-width: 84rem;
  margin: 0 auto;
  padding: 1.25rem 1rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 0.85rem;
}

/* ------------------------------------------------------------------ prose */

.prose h1 {
  margin: 0 0 0.5rem;
  font-size: 1.9rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.prose h2 {
  margin: 2.25rem 0 0.75rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--border);
  font-size: 1.35rem;
  overflow-wrap: anywhere;
}

.prose h3 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.1rem;
  overflow-wrap: anywhere;
}

.prose p,
.prose ul,
.prose ol {
  margin: 0.75rem 0;
}

.prose ul,
.prose ol {
  padding-left: 1.4rem;
}

.lead {
  color: var(--fg-muted);
  font-size: 1.05rem;
}

.lead > p:first-child {
  margin-top: 0;
}

.meta {
  color: var(--fg-faint);
  font-size: 0.85rem;
}

.note {
  color: var(--fg-muted);
  font-style: italic;
}

.breadcrumb {
  margin-bottom: 0.75rem;
  color: var(--fg-faint);
  font-size: 0.85rem;
}

blockquote {
  margin: 1rem 0;
  padding: 0.1rem 1rem;
  border-left: 3px solid var(--border-strong);
  color: var(--fg-muted);
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

img {
  max-width: 100%;
  height: auto;
}

:not(pre) > code {
  padding: 0.12em 0.35em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 0.3rem;
  overflow-wrap: anywhere;
}

/* ------------------------------------------------------------ code blocks */

.code-wrap {
  margin: 0.75rem 0;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow-x: auto;
}

pre.code {
  margin: 0;
  padding: 0.75rem 0.9rem;
  background: transparent;
  line-height: 1.5;
}

pre.code code {
  display: block;
  white-space: pre;
  background: none;
  border: 0;
  padding: 0;
}

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

.hl-string {
  color: var(--hl-string);
}

.hl-constant {
  color: var(--hl-constant);
}

.hl-keyword {
  color: var(--hl-keyword);
}

.hl-storage {
  color: var(--hl-keyword);
}

.hl-entity {
  color: var(--hl-entity);
}

.hl-support {
  color: var(--hl-support);
}

.hl-variable {
  color: var(--hl-variable);
}

.hl-invalid {
  color: var(--hl-invalid);
  font-weight: 600;
}

/* Nested spans inherit their parent's colour unless the grammar was more
 * specific than the rules above; a quote inside a string stays a string. */
.hl-string .hl-punctuation {
  color: inherit;
}

/* ----------------------------------------------------------------- tables */

.table-wrap {
  margin: 1rem 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  padding: 0.5rem 0.7rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}

thead th {
  background: var(--bg-soft);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--fg-muted);
  white-space: nowrap;
}

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

.table-wrap .code-wrap {
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

/* Cells holding one indivisible token -- a revision, a ref, a date. Wrapping
   these gains nothing and costs legibility: a 7-character hash broken over two
   lines no longer reads as a hash. The enclosing .table-wrap scrolls if the
   whole table then outgrows the page, which is the right trade for a column
   that is a fixed handful of characters wide. */
td.atom {
  white-space: nowrap;
}

.settings .setting-name {
  white-space: nowrap;
}

.settings .setting-value {
  width: 60%;
}

/* ------------------------------------------------------------------ cards */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}

.card {
  display: block;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  color: var(--fg);
}

.card:hover {
  border-color: var(--accent);
  text-decoration: none;
  box-shadow: var(--shadow);
}

.card h2,
.card h3 {
  margin: 0 0 0.25rem;
  border: 0;
  padding: 0;
  font-size: 1.05rem;
  color: var(--accent);
}

.card .count {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 650;
  line-height: 1.1;
}

.card .card-body,
.card p {
  color: var(--fg-muted);
  font-size: 0.9rem;
}

.card .card-body > p:first-child {
  margin-top: 0.25rem;
}

/* ---------------------------------------------------------------- options */

.toc {
  margin: 1.25rem 0;
  padding: 0.75rem 1rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}

.toc ul {
  columns: 2 18rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc li {
  break-inside: avoid;
  padding: 0.1rem 0;
  overflow-wrap: anywhere;
}

.option {
  margin: 2rem 0;
  padding-top: 0.5rem;
  scroll-margin-top: 4rem;
}

.option-name {
  margin: 0 0 0.5rem;
  padding: 0;
  border: 0;
  font-size: 1.15rem;
  overflow-wrap: anywhere;
}

.option-name > code {
  background: none;
  border: 0;
  padding: 0;
  font-size: 1em;
}

.anchor {
  margin-right: 0.35rem;
  color: var(--fg-faint);
  font-weight: 400;
  opacity: 0;
}

.option:hover .anchor,
.host-file:hover .anchor,
.anchor:focus {
  opacity: 1;
}

.option-description > :first-child {
  margin-top: 0;
}

.option-facts {
  display: grid;
  grid-template-columns: minmax(6rem, max-content) 1fr;
  gap: 0.4rem 1rem;
  margin: 0.75rem 0 0;
}

.option-facts dt {
  color: var(--fg-muted);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding-top: 0.15rem;
}

.option-facts dd {
  margin: 0;
  min-width: 0;
}

.option-facts dd > .code-wrap:first-child {
  margin-top: 0;
}

.option-facts dd > :last-child {
  margin-bottom: 0;
}

.arg-list {
  margin: 0.5rem 0;
}

.arg-list dt {
  font-weight: 600;
}

.arg-list dd {
  margin: 0 0 0.5rem 1rem;
  color: var(--fg-muted);
}

.fn-type .code-wrap {
  margin-top: 0.25rem;
}

.inline-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.module-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 0.3rem 1rem;
  list-style: none;
  margin: 0.75rem 0;
  padding: 0;
}

.tag {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0.05rem 0.4rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--fg-muted);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  vertical-align: middle;
}

.tag.broken,
.tag.unfree {
  color: var(--hl-invalid);
  border-color: var(--hl-invalid);
}

.badge {
  margin-left: auto;
  padding: 0 0.35rem;
  background: var(--bg-inset);
  border-radius: 999px;
  color: var(--fg-muted);
  font-size: 0.75rem;
}

/* --------------------------------------------------------- option search */

.option-search {
  margin: 1.5rem 0 2rem;
}

.facets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0 0;
  padding: 0;
  border: 0;
}

.facet {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
  user-select: none;
}

.option-status {
  margin: 0.75rem 0 0;
  color: var(--fg-muted);
  font-size: 0.85rem;
}

.option-results {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
}

.option-results li {
  border-bottom: 1px solid var(--border);
}

.option-results a {
  display: block;
  padding: 0.55rem 0.2rem;
  color: var(--fg);
}

.option-results a:hover {
  background: var(--accent-quiet);
  text-decoration: none;
}

.option-results .r-name {
  font-family:
    ui-monospace,
    Menlo,
    Consolas,
    monospace;
  font-size: 0.9rem;
  color: var(--accent);
  overflow-wrap: anywhere;
}

.option-results .r-type {
  margin-left: 0.5rem;
  color: var(--fg-faint);
  font-size: 0.8rem;
}

.option-results .r-desc {
  display: block;
  color: var(--fg-muted);
  font-size: 0.87rem;
}

.option-results mark {
  background: var(--accent-quiet);
  color: inherit;
  border-radius: 0.15rem;
}

/* ------------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .layout {
    display: block;
    padding: 0 1rem;
  }

  .sidebar {
    position: static;
    display: none;
    width: auto;
    max-height: none;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
  }

  .sidebar.open {
    display: block;
  }

  .content {
    max-width: none;
  }

  .option-facts {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .option-facts dt {
    margin-top: 0.5rem;
  }

  .settings .setting-value {
    width: auto;
  }
}

@media (max-width: 640px) {
  .brand {
    font-size: 0.95rem;
  }

  .repo-link {
    display: none;
  }
}