/* Documentation uses the same Engine tokens, container, type and spacing as the home page. */
:root {
  --purple: #814ce4;
  --purple-dark: #5c2fc0;
  --cyan: #01e7cb;
  --ink: #172033;
  --muted: #5d667a;
  --line: #e5e8f1;
  --soft: #f6f7fb;
  --white: #fff;
  --shadow: 0 20px 60px rgba(40, 27, 83, .12);
  --radius: 22px;
  --radius-control: 9px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body.docs-page {
  margin: 0;
  padding: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
body.docs-page > header,
body.docs-page > footer { flex-shrink: 0; }
body.docs-page:lang(zh) {
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
body.docs-page [hidden] { display: none !important; }

body.docs-page > .container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 104px 0 0;
  flex: 1 0 auto;
}
.content-container {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}
.content-container > main,
.docs-sidebar,
#main,
#kube-component.content { min-width: 0; }
.content-container > main { width: 100%; }
/* Stand-alone content pages use the docs reading measure without the sidebar. */
.content-container.docs-article {
  grid-template-columns: minmax(0, 1fr);
  max-width: 852px;
  margin: 0 auto;
}

/* Documentation navigation: a fully expanded left rail in normal page flow. */
.docs-nav-toggle {
  width: 100%;
  min-height: 50px;
  margin: 0 0 24px;
  padding: 0 20px;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  font: 600 1rem/1.65 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  cursor: pointer;
}
.docs-nav-toggle:hover { background: var(--soft); }
.docs-nav-toggle-icon { width: 18px; height: 14px; }
.docs-sidebar {
  align-self: start;
  position: static;
  max-height: none;
  margin: 0;
  padding: 0 10px 28px 0;
  overflow-y: visible;
}
.docs-nav-head { display: none; }
.docs-nav-title {
  color: var(--ink);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .02em;
}
.docs-nav-close {
  width: 40px;
  height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  cursor: pointer;
}
.docs-nav-close:hover { color: var(--purple-dark); }
.sidebar {
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 0;
  font-size: .94rem;
  line-height: 1.4;
}
.sidebar nav,
.sidebar ul { margin: 0; padding: 0; }
.sidebar ul { list-style: none; }
.sidebar li { margin: 0; padding: 0; }
/* Section titles are group headings: smaller bold type with space above each group. */
.sidebar .docs-nav-heading {
  display: block;
  margin: 26px 0 4px;
  padding: 6px 12px;
  color: var(--ink);
  font-size: .78rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .02em;
}
.sidebar .docs-nav-heading a {
  color: inherit;
  text-decoration: none;
}
.sidebar .docs-nav-heading a:hover { color: var(--purple-dark); }
.sidebar nav > ul > li.docs-nav-section:first-child > .docs-nav-heading { margin-top: 0; }
.sidebar li > ul { margin: 0; }
/* Pages are plain, muted links in 38 px rows at one level of indentation. */
.sidebar li > a {
  display: flex;
  align-items: center;
  min-height: 38px;
  margin: 0;
  padding: 7px 12px;
  color: var(--muted);
  font-size: .94rem;
  font-weight: 400;
  line-height: 1.4;
  text-decoration: none;
  border-radius: var(--radius-control);
  overflow-wrap: anywhere;
}
/* The documentation root is depth -1: its direct children stay at the base level. */
.sidebar li[data-docs-depth="1"] > a,
.sidebar li[data-docs-depth="1"] > .docs-nav-heading { padding-left: 28px; }
.sidebar li[data-docs-depth="2"] > a,
.sidebar li[data-docs-depth="2"] > .docs-nav-heading { padding-left: 44px; }
.sidebar li[data-docs-depth="3"] > a,
.sidebar li[data-docs-depth="3"] > .docs-nav-heading { padding-left: 60px; }
.sidebar li > a:hover {
  color: var(--ink);
  background: var(--soft);
}
/* The current page is a rounded pill in the Engine accent tint. */
.sidebar li.active > a,
.sidebar li.active > .docs-nav-heading {
  color: var(--purple-dark);
  background: rgba(129, 76, 228, .1);
  border-radius: var(--radius-control);
  font-weight: 700;
}

/* Page heading and reading measure. */
#main .top-right-icon {
  float: right;
  width: 120px;
  height: 120px;
  margin: 0 0 24px 30px;
  object-fit: contain;
}
#main h1 {
  max-width: 100%;
  margin: 0 0 24px;
  color: var(--ink);
  font-size: clamp(2.15rem, 4vw, 3.3rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.04em;
}
.docs-lead {
  margin: 0 0 34px;
  color: var(--muted);
  font-size: 1.18rem;
  line-height: 1.65;
}
#main h2 {
  margin: 48px 0 18px;
  color: var(--ink);
  font-size: clamp(1.3rem, 2.5vw, 2.15rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.04em;
}
#main h3 {
  margin: 34px 0 14px;
  color: var(--ink);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.35;
}
#main h4 {
  margin: 30px 0 12px;
  color: var(--ink);
  font-size: 1.16rem;
  font-weight: 700;
  line-height: 1.35;
}
#main h5,
#main h6 { color: var(--ink); font-size: 1rem; line-height: 1.65; }
#main p { margin: 0 0 24px; }
#main ul,
#main ol { margin: 0 0 24px; padding-left: 24px; }
#main li { margin: 7px 0; }
#main li > ul,
#main li > ol { margin: 7px 0 0; }
/* Taxonomy listings keep their existing content in the docs reading style. */
#main #posts {
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}
#main #posts > li {
  margin: 0;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
#main #posts > li:first-child { padding-top: 0; }
#main #posts > li:last-child { border-bottom: 0; }
#main #posts > li > h2 { margin: 0 0 10px; }
#main #posts > li > h2 a { color: var(--ink); text-decoration: none; }
#main #posts > li > h2 a:hover {
  color: var(--purple-dark);
  text-decoration: underline;
  text-decoration-color: rgba(92, 47, 192, .35);
  text-underline-offset: 3px;
}
#main #posts > li > p { margin: 0 0 8px; }
#main #posts hr { display: none; }
#main strong { font-weight: 700; }
#main p,
#main li,
#main td { overflow-wrap: break-word; }
#main a {
  color: var(--purple-dark);
  text-decoration: underline;
  text-decoration-color: rgba(92, 47, 192, .35);
  text-underline-offset: 3px;
}
#main a:hover { text-decoration-color: currentColor; }
#main img { max-width: 100%; height: auto; }
#kube-component.content > img,
#kube-component.content > p > img,
#kube-component.content > picture > img,
#kube-component.content > p > picture > img { display: block; margin: 30px auto; }

/* Table of contents, generated from the existing Hugo heading IDs. */
.docs-toc {
  margin: 0 0 40px;
  padding: 24px 30px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.docs-toc::before {
  content: "On this page";
  display: block;
  color: var(--purple-dark);
  font-size: .78rem;
  font-weight: 800;
  line-height: 1.65;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.docs-toc ol {
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  list-style: none;
}
.docs-toc li { margin: 0; }
.docs-toc a { color: var(--muted); font-weight: 600; text-decoration: none; }
.docs-toc a:hover { color: var(--purple-dark); }

/* Page call-out: shared card surface, eyebrow and buttons from the site standard. */
#main .docs-callout {
  margin: 0 0 40px;
  padding: 30px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 18px;
}
#main .docs-callout .docs-callout-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 10px;
  color: var(--purple-dark);
  font-size: .78rem;
  font-weight: 800;
  line-height: 1.65;
  letter-spacing: .14em;
  text-transform: uppercase;
}
#main .docs-callout .docs-callout-eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  flex: 0 0 auto;
  background: currentColor;
}
#main .docs-callout .docs-callout-title {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 1.16rem;
  font-weight: 700;
  line-height: 1.35;
}
#main .docs-callout p { margin: 0 0 18px; color: var(--muted); }
#main .docs-callout p:last-child { margin-bottom: 0; }
#main .docs-callout code { background: var(--white); }
#main .docs-callout .docs-callout-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 0;
}
#main .docs-callout .button.secondary {
  color: var(--purple-dark);
  background: var(--white);
  border: 1px solid rgba(129, 76, 228, .35);
}
#main .docs-callout .button.secondary:hover {
  transform: translateY(-2px);
  border-color: var(--purple);
}

/* Code uses the home page's dark frame and the existing Hugo dracula token spans. */
#main code {
  padding: 2px 7px;
  color: var(--purple-dark);
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .9em;
  font-weight: 500;
}
#main .highlight {
  margin: 30px 0;
  overflow: hidden;
  background: #100b1e;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 16px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .25);
}
#main .highlight pre,
#main pre {
  max-width: 100%;
  margin: 0;
  padding: 26px;
  overflow: auto;
  color: #ece8f8;
  background: #100b1e !important;
  border: 0;
  font: 500 .9rem/1.8 ui-monospace, SFMono-Regular, Menlo, monospace;
  tab-size: 4;
}
#main .highlight pre { color: #ece8f8 !important; }
#main > pre,
#kube-component.content > pre {
  margin: 30px 0;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 16px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .25);
}
#main .highlight code,
#main pre code {
  padding: 0;
  color: inherit;
  background: transparent;
  border: 0;
  border-radius: 0;
  font: inherit;
}

/* Notes and tables wrap within the reading column, including at 320 px. */
#main blockquote {
  margin: 30px 0;
  padding: 24px 30px;
  color: var(--ink);
  background: var(--soft);
  border: 0;
  border-left: 4px solid var(--purple);
  border-radius: 0 18px 18px 0;
}
#main blockquote > :last-child { margin-bottom: 0; }
#main table {
  width: 100%;
  margin: 30px 0;
  table-layout: fixed;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 18px;
  font-size: .88rem;
}
#main th,
#main td {
  padding: 13px 16px;
  border: 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}
#main th { color: var(--ink); background: var(--soft); font-weight: 700; }
#main tr:last-child td { border-bottom: 0; }
#main table.striped tbody tr:nth-child(even) td { background: var(--soft); }
#main .button,
#main a.button {
  min-height: 50px;
  padding: 0 23px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-control);
  font-weight: 750;
  text-decoration: none;
  transition: transform .2s, background .2s, border-color .2s;
}
#main .button.primary {
  color: #1b1c2c;
  background: var(--cyan);
}
#main .button.primary:hover { transform: translateY(-2px); }

.docs-page pre:focus-visible { outline: 3px solid var(--cyan); outline-offset: -4px; }
.docs-page a:focus-visible,
.docs-page button:focus-visible {
  outline: 3px solid var(--purple-dark);
  outline-offset: 4px;
}

@media (max-width: 900px) {
  .content-container { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  /* The button is rendered before first paint so its space is reserved; without
     scripts it stays hidden and the full sidebar keeps working (#247). */
  html.docs-js .docs-nav-toggle { display: flex; }
  /* Phones: the sidebar becomes a "Menu" button that opens a drawer. */
  html.docs-js .docs-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 50;
    width: min(340px, 86vw);
    height: 100dvh;
    max-height: none;
    margin: 0;
    padding: 18px 18px 32px;
    background: var(--white);
    border-right: 1px solid var(--line);
    box-shadow: 24px 0 60px rgba(23, 16, 34, .18);
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform .24s ease, visibility 0s linear .24s;
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  html.docs-js .docs-sidebar.is-open {
    transform: none;
    visibility: visible;
    transition: transform .24s ease;
  }
  html.docs-js .docs-nav-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin: 0 0 18px;
    padding: 0 0 16px;
    border-bottom: 1px solid var(--line);
  }
  .docs-nav-backdrop:not([hidden]) {
    position: fixed;
    inset: 0;
    z-index: 45;
    background: rgba(23, 16, 34, .45);
  }
  body.docs-nav-open { overflow: hidden; }
}
@media (max-width: 700px) {
  body.docs-page > .container { width: min(100% - 28px, 1160px); padding-top: 76px; }
  #main .top-right-icon { float: none; width: 92px; height: 92px; margin: 0 0 24px; }
  #main th,
  #main td { padding: 10px 8px; }
  .docs-toc,
  #main blockquote,
  #main .docs-callout { padding: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .docs-page *,
  .docs-page *::before,
  .docs-page *::after { transition: none !important; }
}