@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Manrope:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-elevated: #2457d6;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --border: #d7e0ef;
  --text: #152033;
  --muted: #5e6b7f;
  --muted-strong: #2b3750;
  --accent: #2457d6;
  --accent-strong: #12318a;
  --accent-soft: #e8f0ff;
  --accent-line: #b9cdfb;
  --topbar-text: #ffffff;
  --code-bg: #0b1220;
  --code-text: #e8eefc;
  --code-border: rgba(255, 255, 255, 0.08);
  --shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 8px 24px rgba(15, 23, 42, 0.06);
  --radius-xl: 22px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --topbar-height: 74px;
  --sidebar-width: 290px;
  --toc-width: 260px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #09111d;
  --bg-elevated: #0f172a;
  --surface: #111b2d;
  --surface-strong: #18253a;
  --border: #2a3952;
  --text: #edf3ff;
  --muted: #9fb0cc;
  --muted-strong: #d8e3f8;
  --accent: #7aa2ff;
  --accent-strong: #b9ccff;
  --accent-soft: #1a2a48;
  --accent-line: #31466f;
  --topbar-text: #ffffff;
  --code-bg: #050a13;
  --code-text: #dbe7ff;
  --code-border: rgba(255, 255, 255, 0.06);
  --shadow: 0 26px 64px rgba(0, 0, 0, 0.36);
  --shadow-soft: 0 12px 28px rgba(0, 0, 0, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Manrope", system-ui, sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

a:hover {
  color: var(--accent-strong);
}

img {
  max-width: 100%;
}

code,
pre {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

pre,
code {
  font-size: 0.93rem;
}

.site-shell {
  position: relative;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--toc-width);
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  min-height: var(--topbar-height);
  background: var(--bg-elevated);
  color: var(--topbar-text);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 14px rgba(15, 23, 42, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand img {
  width: 56px;
  height: 40px;
  object-fit: contain;
}

.brand span {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand small {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar-spacer {
  flex: 1;
}

.search {
  flex: 0 1 460px;
  position: relative;
}

.search input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-soft);
  font: inherit;
}

.search input::placeholder {
  color: color-mix(in srgb, var(--muted) 70%, transparent);
}

.search::before {
  content: "⌕";
  position: absolute;
  inset: 0 auto 0 1rem;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 1rem;
  pointer-events: none;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-button,
.link-button {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  justify-content: center;
  min-height: 42px;
  padding: 0.62rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.topbar .icon-button,
.topbar .link-button {
  background: rgba(255, 255, 255, 0.96);
  color: var(--accent);
  border-color: transparent;
  box-shadow: none;
}

.topbar .search input {
  border-color: rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: none;
}

.topbar .search input::placeholder,
.topbar .search::before {
  color: #7283a1;
}

.icon-button:hover,
.link-button:hover {
  transform: translateY(-1px);
  border-color: var(--accent-line);
}

.icon-button:focus-visible,
.link-button:focus-visible,
.nav-link:focus-visible,
.tab-button:focus-visible,
.copy-button:focus-visible,
.search input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.menu-button {
  display: none;
}

.sidebar,
.toc {
  position: sticky;
  top: var(--topbar-height);
  height: calc(100vh - var(--topbar-height));
  overflow: auto;
  padding: 1.25rem 1rem;
}

.sidebar {
  border-right: 1px solid var(--border);
  background: var(--surface);
}

.nav-section {
  margin-bottom: 1.45rem;
}

.nav-section h2 {
  margin: 0 0 0.65rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.nav-list {
  display: grid;
  gap: 0.35rem;
}

.nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  color: var(--text);
  border: 1px solid transparent;
}

.nav-link strong {
  font-size: 0.98rem;
}

.nav-link span {
  font-size: 0.84rem;
  color: var(--muted);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  background: var(--accent-soft);
  border-color: var(--accent-line);
}

.nav-empty {
  margin-top: 0.85rem;
  padding: 0.9rem;
  border-radius: var(--radius-md);
  border: 1px dashed var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

.sidebar-footer {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
}

.sidebar-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.content {
  min-width: 0;
  padding: 1.5rem 2rem 4rem;
}

.doc-page {
  max-width: 980px;
  margin: 0 auto;
}

.page-hero {
  padding: 2.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface);
  border-top: 4px solid var(--accent);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 1.5rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.8rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-hero h1 {
  margin: 0 0 0.8rem;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.lead {
  margin: 0;
  max-width: 60ch;
  color: var(--muted-strong);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.primary-button {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.primary-button:hover {
  color: #fff;
}

.hero-card {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  box-shadow: var(--shadow-soft);
}

.hero-card img {
  display: block;
  width: 100%;
  max-width: 290px;
  margin: 0 auto;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.stat {
  padding: 0.9rem;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
}

.stat strong {
  display: block;
  font-size: 1.02rem;
}

.stat span {
  color: var(--muted);
  font-size: 0.84rem;
}

.section {
  margin-top: 2rem;
  padding: 1.45rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.6rem;
  letter-spacing: -0.03em;
}

.section h3 {
  margin: 1.5rem 0 0.45rem;
  font-size: 1.15rem;
}

.section p {
  margin-top: 0;
  color: var(--muted-strong);
}

.card-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.card {
  padding: 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface-strong);
}

.card h3 {
  margin-top: 0;
}

.card p {
  margin-bottom: 0;
}

.callout {
  margin: 1rem 0;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-strong) 90%, transparent);
}

.callout.info {
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.callout.warning {
  border-color: #f0c36e;
  background: #fff7e6;
}

.callout strong {
  display: block;
  margin-bottom: 0.35rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-strong);
}

th,
td {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--accent-soft);
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

tr:last-child td {
  border-bottom: none;
}

pre {
  position: relative;
  margin: 1rem 0;
  overflow: auto;
  padding: 1rem 1rem 1rem 1.15rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--code-border);
  background: var(--code-bg);
  color: var(--code-text);
  box-shadow: var(--shadow-soft);
}

pre code {
  color: inherit;
  background: transparent;
  white-space: pre;
}

code {
  padding: 0.12rem 0.35rem;
  border-radius: 999px;
  background: var(--accent-soft);
}

pre code {
  padding: 0;
  border-radius: 0;
  background: transparent;
}

.copy-button {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 1;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--code-border);
  background: rgba(255, 255, 255, 0.12);
  color: var(--code-text);
  cursor: pointer;
}

.copy-button:hover {
  border-color: var(--accent);
}

.tab-group {
  margin: 1rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.6rem;
  border-bottom: 1px solid var(--border);
  background: var(--accent-soft);
}

.tab-button {
  padding: 0.55rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--muted-strong);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.tab-button[aria-selected="true"] {
  background: var(--accent-soft);
  border-color: var(--accent-line);
  color: var(--accent-strong);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.tab-panel pre {
  margin: 0;
  border-radius: 0;
  border: none;
  box-shadow: none;
}

.toc {
  border-left: 1px solid var(--border);
  background: var(--surface);
}

.toc h2 {
  margin: 0 0 0.9rem;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.toc-list {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc-link {
  display: block;
  color: var(--muted-strong);
  font-size: 0.93rem;
}

.toc-link[data-depth="3"] {
  padding-left: 0.75rem;
}

.toc-link[data-depth="4"] {
  padding-left: 1.25rem;
}

.toc-link.active {
  color: var(--accent-strong);
  font-weight: 700;
}

.mobile-only {
  display: none;
}

.heading-anchor {
  margin-left: 0.45rem;
  color: color-mix(in srgb, var(--muted) 70%, transparent);
  opacity: 0;
}

h2:hover .heading-anchor,
h3:hover .heading-anchor,
h4:hover .heading-anchor,
.heading-anchor:focus-visible {
  opacity: 1;
}

.nav-backdrop {
  display: none;
}

.site-footer {
  margin-top: 2rem;
  padding: 1rem 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.page-meta {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 700;
}

.steps {
  display: grid;
  gap: 1rem;
  counter-reset: step;
  margin: 1rem 0 0;
}

.step {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 800;
}

.feature-list {
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.feature-list li::before {
  content: "•";
  color: var(--accent);
  font-size: 1.2rem;
  line-height: 1;
}

.kbd {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.45rem;
  border-radius: 0.45rem;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.08);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
}

.columns {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.stacked-cards {
  display: grid;
  gap: 1rem;
}

.note-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 700;
}

@media (max-width: 1200px) {
  .site-shell {
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  }

  .toc {
    display: none;
  }
}

@media (max-width: 900px) {
  .site-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: var(--topbar-height);
    width: min(90vw, var(--sidebar-width));
    transform: translateX(-102%);
    transition: transform 220ms ease;
    z-index: 45;
    height: calc(100vh - var(--topbar-height));
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  body.nav-open .sidebar {
    transform: translateX(0);
  }

.nav-backdrop {
    display: block;
    position: fixed;
    inset: var(--topbar-height) 0 0;
    background: rgba(16, 24, 40, 0.35);
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms ease;
    z-index: 42;
  }

  body.nav-open .nav-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .menu-button {
    display: inline-flex;
  }

  .search {
    flex: 1 1 auto;
  }

  .content {
    padding-inline: 1rem;
  }

  .page-hero-grid {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr;
  }
}