/* Flotilla docs. Colours, type and the header and footer come from the site (../../index.html). */

:root {
  --plum: #311E36;
  --plum-ink: #24152A;
  --coral: #F37173;
  --amber: #F6BC63;
  --lavender: #C2A7E2;

  --bg: #FCFAFD;
  --sea: #F4EFF6;
  --surface: #F2ECF4;
  --raised: #FFFFFF;
  --border: #E7DEEB;
  --text: #311E36;
  --text-2: #4E3C55;
  --muted: #6C5C73;
  --selection: #E9DEF0;
  --link: #6B4A94;
  --ring: #8E6CB8;
  --go: #1E7F48;
  --warn: #8A5A00;
  --warn-tint: #FBF0DC;
  --shadow-sm: 0 1px 2px rgb(49 30 54 / 0.05), 0 6px 16px -6px rgb(49 30 54 / 0.14);

  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  --mono: Menlo, ui-monospace, SFMono-Regular, Consolas, monospace;

  --gutter: 24px;
  --max: 1180px;
  --side: 248px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1D1322;
    --sea: #170F1B;
    --surface: #281B2D;
    --raised: #241829;
    --border: #33243A;
    --text: #F1E9F4;
    --text-2: #D4C7D9;
    --muted: #A898AE;
    --selection: #33233B;
    --link: #D3BFEC;
    --ring: #C2A7E2;
    --go: #6ACB92;
    --warn: #F6BC63;
    --warn-tint: #2E2219;
    --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 20px -8px rgb(0 0 0 / 0.5);
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 24px;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1rem/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

::selection { background: color-mix(in srgb, var(--lavender) 45%, transparent); }

h1, h2, h3, h4, p, ul, ol, figure, pre, table, dl { margin: 0; }
h1, h2, h3, h4 { font-family: var(--display); font-weight: 600; text-wrap: balance; }
p, li, dd { text-wrap: pretty; }
code, pre, kbd { font-family: var(--mono); }
img, svg { display: block; max-width: 100%; }
button, input, select { font: inherit; color: inherit; }

a {
  color: var(--link);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  text-decoration-color: color-mix(in srgb, var(--link) 40%, transparent);
}

@media (hover: hover) and (pointer: fine) {
  a:hover { text-decoration-color: currentColor; }
}

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: 6px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 10;
  padding: 8px 12px;
  border-radius: 6px;
  background: var(--raised);
}

.skip:focus { top: 12px; box-shadow: var(--shadow-sm); }

.wrap {
  width: 100%;
  max-width: calc(var(--max) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Header, as on the site */

.site-header {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand svg { width: 42px; height: auto; }

.crumb {
  color: var(--muted);
  font-size: 18px;
  text-decoration: none;
}

.crumb::before {
  content: "/";
  margin-right: 14px;
  color: var(--border);
}

.version {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.version select {
  appearance: none;
  -webkit-appearance: none;
  height: 30px;
  padding: 0 28px 0 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--raised);
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 13px;
  cursor: pointer;
}

.version::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  font-size: 15px;
}

.site-nav a {
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--text-2);
  text-decoration: none;
  transition: background-color 150ms ease-out, color 150ms ease-out;
}

@media (hover: hover) and (pointer: fine) {
  .site-nav a:hover { background: var(--surface); color: var(--text); }
}

.site-nav .nav-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
}

.site-nav .nav-github svg { width: 16px; height: 16px; }

/* Layout */

.docs {
  display: grid;
  grid-template-columns: var(--side) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
  padding-top: 24px;
}

.sidebar {
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  padding: 4px 4px 24px 0;
  font-size: 15px;
  scrollbar-width: thin;
}

.toc-toggle { display: none; }

.sidebar .group {
  margin: 22px 0 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sidebar ul { margin: 0; padding: 0; list-style: none; }

.sidebar li a {
  display: block;
  padding: 5px 10px;
  border-radius: 6px;
  color: var(--text-2);
  text-decoration: none;
  line-height: 1.4;
}

@media (hover: hover) and (pointer: fine) {
  .sidebar li a:hover { background: var(--surface); color: var(--text); }
}

.sidebar li a[aria-current="page"] {
  background: var(--selection);
  color: var(--text);
  font-weight: 600;
}

.sidebar .sections { margin: 4px 0 8px 10px; padding-left: 10px; border-left: 1px solid var(--border); }
.sidebar .sections a { padding: 3px 10px; color: var(--muted); font-size: 14px; }

/* Search */

.search { position: relative; }

.search input {
  width: 100%;
  height: 36px;
  padding: 0 12px 0 34px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--raised) no-repeat 11px 50% / 15px 15px;
  font-size: 15px;
}

.search input::placeholder { color: var(--muted); }

.search svg {
  position: absolute;
  left: 11px;
  top: 10.5px;
  width: 15px;
  height: 15px;
  color: var(--muted);
  pointer-events: none;
}

.search .results {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.search .results a {
  display: block;
  padding: 7px 10px;
  border-radius: 6px;
  color: var(--text);
  text-decoration: none;
  line-height: 1.35;
}

.search .results a:focus-visible,
.search .results a.active { background: var(--selection); outline-offset: 0; }

@media (hover: hover) and (pointer: fine) {
  .search .results a:hover { background: var(--surface); }
}

.search .results .where { display: block; color: var(--muted); font-size: 12.5px; }
.search .results .what { display: block; margin-top: 2px; color: var(--text-2); font-size: 13.5px; }
.search .results mark { background: color-mix(in srgb, var(--lavender) 45%, transparent); color: inherit; border-radius: 2px; }
.search .empty { padding: 7px 10px; color: var(--muted); font-size: 14px; }

/* Content */

.doc {
  max-width: 760px;
  padding-bottom: 32px;
}

.version-note {
  margin-bottom: 24px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--warn-tint);
  color: var(--text);
  font-size: 15px;
}

.doc h1 {
  font-size: clamp(2rem, 1.5rem + 1.6vw, 2.625rem);
  line-height: 1.1;
  letter-spacing: -0.022em;
}

.doc .lede {
  margin-top: 16px;
  color: var(--text-2);
  font-size: 1.1875rem;
  line-height: 1.55;
}

.doc h2 {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 1.5rem;
  line-height: 1.2;
  letter-spacing: -0.014em;
}

.doc h3 {
  margin-top: 36px;
  font-size: 1.1875rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.doc h4 { margin-top: 24px; font-size: 1rem; }

.doc h2 + *, .doc h3 + *, .doc h4 + * { margin-top: 12px; }

.doc :is(p, ul, ol, pre, table, figure, dl, .note, .cmd) { margin-top: 16px; }
.doc :is(h2, h3, h4) + :is(p, ul, ol, pre, table, figure, dl, .note, .cmd) { margin-top: 12px; }

.doc ul, .doc ol { padding-left: 1.35em; }
.doc li + li { margin-top: 6px; }
.doc li > ul, .doc li > ol { margin-top: 6px; }
.doc li::marker { color: var(--muted); }

.doc .anchor {
  margin-left: 8px;
  color: var(--muted);
  font-weight: 400;
  text-decoration: none;
  opacity: 0;
  transition: opacity 120ms ease-out;
}

.doc :is(h2, h3):hover .anchor, .doc .anchor:focus-visible { opacity: 1; }

.doc :not(pre) > code {
  padding: 0.12em 0.36em;
  border-radius: 5px;
  background: var(--surface);
  font-size: 0.88em;
  overflow-wrap: anywhere;
}

kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0.05em 0.42em;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--raised);
  font-size: 0.85em;
  line-height: 1.5;
  text-align: center;
  white-space: nowrap;
}

/* Commands: the site's dark command block */

.cmd {
  position: relative;
  border-radius: 10px;
  background: var(--plum-ink);
  color: #F1E9F4;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.cmd pre {
  margin: 0;
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.7;
  tab-size: 2;
}

.cmd .label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px 8px 18px;
  border-bottom: 1px solid #33243A;
  color: #A898AE;
  font-size: 12.5px;
}

.cmd .copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 9px;
  border: 1px solid #44324C;
  border-radius: 6px;
  background: transparent;
  color: #D4C7D9;
  font-size: 12.5px;
  cursor: pointer;
  transition: background-color 150ms ease-out, transform 160ms cubic-bezier(0.23, 1, 0.32, 1);
}

.cmd:not(:has(.label)) .copy { position: absolute; top: 9px; right: 9px; }
.cmd:not(:has(.label)) pre { padding-right: 84px; }

.cmd .copy:active { transform: scale(0.97); }

@media (hover: hover) and (pointer: fine) {
  .cmd .copy:hover { background: #33243A; }
}

/* Tables */

.table { overflow-x: auto; margin-top: 16px; }
.table table { margin-top: 0; }

.doc table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.doc th, .doc td {
  padding: 9px 12px 9px 0;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.doc th {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.doc td:first-child { white-space: nowrap; padding-right: 18px; }
.doc td.wrap-ok { white-space: normal; }

/* Notes */

.note {
  padding: 12px 16px;
  border-radius: 8px;
  background: var(--surface);
  color: var(--text-2);
  font-size: 15px;
}

.note strong:first-child { color: var(--text); }
.note.warn { background: var(--warn-tint); }

/* Screenshots */

.doc figure picture, .doc figure > img {
  display: block;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.doc figure img { width: 100%; height: auto; }
.doc figure.narrow { max-width: 460px; }
.doc figure.phone { max-width: 300px; }
.doc figure.phone picture { border-radius: 28px; }

.doc figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.phones {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.phones figure { margin-top: 0; }
.phones.two { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 506px; }
.phones picture { border-radius: 22px !important; }

/* Definition lists, for settings */

.doc dl { display: grid; gap: 0; }
.doc dt { margin-top: 14px; font-weight: 600; }
.doc dd { margin: 4px 0 0; color: var(--text-2); }

/* Page cards on the overview */

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
  padding: 0;
  list-style: none;
}

.cards li { margin: 0; }

.cards a {
  display: block;
  height: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  transition: background-color 150ms ease-out, border-color 150ms ease-out;
}

.cards a strong { display: block; }
.cards a span { display: block; margin-top: 2px; color: var(--muted); font-size: 14.5px; }

@media (hover: hover) and (pointer: fine) {
  .cards a:hover { background: var(--surface); border-color: var(--selection); }
}

/* Previous and next */

.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.pager a {
  display: block;
  max-width: 48%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
}

.pager a span { display: block; color: var(--muted); font-size: 13px; }
.pager .next { margin-left: auto; text-align: right; }

@media (hover: hover) and (pointer: fine) {
  .pager a:hover { background: var(--surface); }
}

/* Footer, as on the site's end card */

.site-footer {
  margin-top: 96px;
  padding: 28px 0 40px;
  background: var(--plum);
  color: #A898AE;
  font-size: 15px;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
}

.site-footer a { color: #D4C7D9; text-decoration-color: rgb(212 199 217 / 0.4); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }

/* Narrow screens: the sidebar folds into a Contents button above the page */

@media (max-width: 900px) {
  .docs { grid-template-columns: minmax(0, 1fr); gap: 8px; padding-top: 8px; }
  .sidebar { position: static; max-height: none; overflow: visible; padding: 0; }
  .js .toc-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 44px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--raised);
    font-weight: 600;
    cursor: pointer;
  }
  .toc-toggle svg { width: 14px; height: 14px; color: var(--muted); transition: transform 160ms ease-out; }
  .toc-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
  .js .sidebar .toc { display: none; padding: 12px 0 8px; }
  .js .sidebar.open .toc { display: block; }
  .doc { padding-top: 24px; }
}

@media (max-width: 720px) {
  :root { --gutter: 20px; }
  .site-header { height: 64px; gap: 12px; }
  .crumb { font-size: 16px; }
  .crumb::before { margin-right: 10px; }
  .brand { font-size: 17px; gap: 10px; }
  .brand svg { width: 34px; }
  .site-nav .nav-text { display: none; }
  .site-nav .nav-github { margin-left: 0; padding: 8px 10px; }
  .doc .lede { font-size: 1.0625rem; }
  .doc h2 { margin-top: 44px; }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .phones { grid-template-columns: repeat(3, 220px); overflow-x: auto; margin-inline: calc(var(--gutter) * -1); padding: 0 var(--gutter) 8px; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .phones figure { scroll-snap-align: center; }
  .phones.two { grid-template-columns: repeat(2, 220px); max-width: none; }
  .pager { flex-direction: column; }
  .pager a { max-width: none; }
  .doc td:first-child { white-space: normal; }
}

@media (max-width: 520px) {
  .site-nav .nav-github { padding-inline: 11px; }
  .site-nav .nav-github .label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
}

@media (max-width: 420px) {
  .brand .word { display: none; }
  .crumb::before { margin-right: 8px; }
  .site-header { gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav a, .cmd .copy, .cards a, .toc-toggle svg, .doc .anchor { transition: none; }
  .cmd .copy:active { transform: none; }
}

/* The app's Alpha tag */

.tag {
  padding: 0 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  font-size: 12px;
  line-height: 20px;
}

@media (max-width: 520px) {
  .tag { display: none; }
}