:root {
  --ink: #1d1d1f;
  --ink-soft: #3a3a3c;
  --muted: #6e6e73;
  --muted-soft: #8e8e93;
  --line: #d2d2d7;
  --line-strong: #c7c7cc;
  --surface: #ffffff;
  --surface-subtle: #fbfbfd;
  --surface-nav: #f5f5f7;
  --surface-accent: #eef3ff;
  --accent: #2f6fd0;
  --accent-deep: #235ab1;
  --accent-soft: #e8f0ff;
  --teal: #89b0ae;
  --shadow-nav: 0 24px 56px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 18px 36px rgba(0, 0, 0, 0.06);
  --font-display: "DM Sans", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --topbar-height: 69px;
  --sidebar-width: 320px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at top left, rgba(47, 111, 208, 0.08), transparent 28%),
    linear-gradient(180deg, #f9fafc 0%, #f5f5f7 22%, #ffffff 22%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-sidebar-open {
  overflow: hidden;
}

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

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

img {
  display: block;
  max-width: 100%;
}

button,
input {
  font: inherit;
}

::selection {
  background: rgba(47, 111, 208, 0.16);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(210, 210, 215, 0.92);
  background: rgba(251, 251, 253, 0.88);
  backdrop-filter: blur(18px);
}

.topbar-inner {
  width: min(1480px, calc(100vw - 32px));
  min-height: var(--topbar-height);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.toplinks {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.toplinks a {
  color: var(--muted);
  font-size: 0.94rem;
}

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

.topbar-trigger {
  display: none;
}

.page-shell {
  width: min(1480px, calc(100vw - 32px));
  min-height: calc(100vh - var(--topbar-height));
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  position: relative;
}

.docs-sidebar {
  position: sticky;
  top: var(--topbar-height);
  align-self: flex-start;
  width: var(--sidebar-width);
  height: calc(100vh - var(--topbar-height));
  flex-shrink: 0;
  border-right: 1px solid var(--line);
  background: rgba(245, 245, 247, 0.82);
  backdrop-filter: blur(16px);
}

.sidebar-inner {
  height: 100%;
  overflow-y: auto;
  padding: 22px 20px 28px;
}

.sidebar-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.sidebar-eyebrow {
  margin: 0 0 6px;
  color: var(--muted-soft);
  font-family: var(--font-display);
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sidebar-title {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.65rem;
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.sidebar-expand {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 4px 0;
}

.sidebar-expand:hover {
  color: var(--ink);
}

.sidebar-filter {
  display: grid;
  gap: 8px;
  margin-bottom: 22px;
}

.sidebar-filter-label {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 500;
}

.sidebar-filter-field {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 42px;
  border: 1px solid rgba(199, 199, 204, 0.92);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.sidebar-filter-field:focus-within {
  border-color: rgba(47, 111, 208, 0.42);
  box-shadow:
    0 0 0 3px rgba(47, 111, 208, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.sidebar-filter-icon {
  position: absolute;
  left: 14px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--muted-soft);
  border-radius: 50%;
}

.sidebar-filter-icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -5px;
  width: 7px;
  height: 2px;
  border-radius: 999px;
  background: var(--muted-soft);
  transform: rotate(45deg);
  transform-origin: center;
}

.sidebar-filter input {
  width: 100%;
  min-height: 42px;
  padding: 0 14px 0 40px;
  border: 0;
  border-radius: 12px;
  color: var(--ink);
  background: transparent;
}

.sidebar-filter input::placeholder {
  color: var(--muted-soft);
}

.sidebar-nav {
  display: grid;
  gap: 2px;
}

.nav-group {
  border-radius: 14px;
}

.nav-group[hidden] {
  display: none;
}

.nav-group-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 6px;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  text-align: left;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
}

.nav-group-toggle:hover {
  color: var(--ink);
}

.nav-group-chevron {
  width: 10px;
  height: 10px;
  border-right: 1.75px solid currentColor;
  border-bottom: 1.75px solid currentColor;
  transform: rotate(-45deg);
  transition: transform 160ms ease;
  flex-shrink: 0;
}

.nav-group.is-open .nav-group-chevron {
  transform: rotate(45deg);
}

.nav-group-list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
}

.nav-group-list[hidden] {
  display: none;
}

.nav-item {
  margin: 0;
}

.nav-link {
  display: block;
  padding: 10px 14px;
  border-radius: 11px;
  color: var(--muted);
  font-size: 0.97rem;
  line-height: 1.35;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.nav-link:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
  transform: translateX(2px);
}

.nav-link.is-active {
  color: var(--ink);
  font-weight: 600;
  background: var(--surface-accent);
  box-shadow: inset 0 0 0 1px rgba(47, 111, 208, 0.12);
}

.sidebar-empty {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.sidebar-backdrop {
  display: none;
}

.docs-main {
  min-width: 0;
  flex: 1;
  padding: 30px clamp(28px, 4vw, 64px) 84px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78) 0%, rgba(255, 255, 255, 1) 140px);
}

.docs-main-toolbar {
  display: none;
  margin-bottom: 18px;
}

.mobile-nav-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid rgba(199, 199, 204, 0.92);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 0.93rem;
  font-weight: 600;
  cursor: pointer;
}

.mobile-nav-trigger:hover {
  background: var(--surface-subtle);
}

.doc-content,
.doc-pagination {
  max-width: 920px;
}

.doc-meta {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.doc-breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 0.94rem;
}

.doc-breadcrumbs a {
  color: var(--muted);
}

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

.doc-breadcrumb-sep {
  color: var(--line-strong);
}

.doc-section-label {
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2vw, 1.85rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.doc-content > :first-child {
  margin-top: 0;
}

.doc-content h1,
.doc-content h2,
.doc-content h3,
.doc-content h4 {
  color: var(--ink);
  font-family: var(--font-display);
  letter-spacing: -0.04em;
}

.doc-content h1 {
  margin: 0 0 20px;
  font-size: clamp(2.85rem, 5vw, 4.35rem);
  line-height: 0.98;
}

.doc-content h1 + p {
  margin-top: 0;
  max-width: 52rem;
  color: var(--ink-soft);
  font-size: clamp(1.1rem, 1.5vw, 1.32rem);
  line-height: 1.58;
}

.doc-content h2 {
  margin: 54px 0 18px;
  padding-top: 32px;
  border-top: 1px solid rgba(210, 210, 215, 0.92);
  font-size: clamp(1.8rem, 2vw, 2.15rem);
  line-height: 1.05;
}

.doc-content h3 {
  margin: 28px 0 12px;
  font-size: 1.28rem;
  line-height: 1.18;
}

.doc-content h4 {
  margin: 22px 0 10px;
  font-size: 1.06rem;
  line-height: 1.25;
}

.doc-content p,
.doc-content li,
.doc-content td,
.doc-content th {
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.72;
}

.doc-content p,
.doc-content ul,
.doc-content ol,
.doc-content pre,
.doc-content table,
.doc-content blockquote {
  margin: 0 0 22px;
}

.doc-content ul,
.doc-content ol {
  padding-left: 24px;
}

.doc-content li + li {
  margin-top: 6px;
}

.doc-content strong {
  color: var(--ink);
}

.doc-content code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--ink);
  background: #f1f2f6;
  padding: 0.16em 0.42em;
  border-radius: 6px;
}

.doc-content pre {
  overflow-x: auto;
  padding: 18px 20px;
  border: 1px solid rgba(210, 210, 215, 0.96);
  border-radius: 16px;
  background: #f8f8fb;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.doc-content pre code {
  padding: 0;
  background: transparent;
}

.doc-content table {
  width: 100%;
  display: block;
  overflow-x: auto;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid rgba(210, 210, 215, 0.96);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow-card);
}

.doc-content thead th {
  background: #f6f8fc;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0;
}

.doc-content th,
.doc-content td {
  padding: 13px 15px;
  border-bottom: 1px solid rgba(210, 210, 215, 0.82);
  text-align: left;
  vertical-align: top;
}

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

.doc-content blockquote {
  padding: 16px 18px;
  border-left: 4px solid rgba(47, 111, 208, 0.7);
  border-radius: 0 16px 16px 0;
  background: #f7f9ff;
}

.doc-content blockquote > :last-child {
  margin-bottom: 0;
}

.doc-content hr {
  border: 0;
  border-top: 1px solid rgba(210, 210, 215, 0.92);
  margin: 34px 0;
}

.doc-content input[type="checkbox"] {
  accent-color: var(--accent);
}

.doc-pagination {
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid rgba(210, 210, 215, 0.92);
}

.doc-pagination:empty {
  display: none;
}

.doc-pagination-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

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

.doc-pagination-link {
  display: block;
  min-height: 100%;
  padding: 18px 20px;
  border: 1px solid rgba(210, 210, 215, 0.96);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 249, 255, 0.92));
  box-shadow: var(--shadow-card);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.doc-pagination-link:hover {
  border-color: rgba(47, 111, 208, 0.22);
  box-shadow: 0 22px 38px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.doc-pagination-label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 500;
}

.doc-pagination-title {
  display: block;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.doc-pagination-section {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 1080px) {
  .toplinks {
    gap: 14px;
  }

  .toplinks a {
    font-size: 0.89rem;
  }

  .docs-main {
    padding-inline: clamp(24px, 3.2vw, 40px);
  }
}

@media (max-width: 980px) {
  body.is-sidebar-open {
    overflow: hidden;
  }

  .topbar-inner {
    min-height: 62px;
  }

  .toplinks {
    display: none;
  }

  .topbar-trigger,
  .docs-main-toolbar {
    display: block;
  }

  .page-shell {
    width: calc(100vw - 24px);
  }

  .docs-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 60;
    width: min(86vw, 360px);
    height: 100vh;
    border-right: 1px solid var(--line);
    box-shadow: var(--shadow-nav);
    transform: translateX(-104%);
    transition: transform 220ms ease;
  }

  .docs-page.is-sidebar-open .docs-sidebar {
    transform: translateX(0);
  }

  .sidebar-inner {
    padding-top: 86px;
  }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 55;
    display: block;
    border: 0;
    background: rgba(17, 24, 39, 0.28);
    opacity: 0;
    visibility: hidden;
    transition: opacity 180ms ease, visibility 180ms ease;
    cursor: default;
  }

  .docs-page.is-sidebar-open .sidebar-backdrop {
    opacity: 1;
    visibility: visible;
  }

  .docs-main {
    padding: 22px 0 64px;
  }

  .doc-content,
  .doc-pagination {
    max-width: none;
  }
}

@media (max-width: 760px) {
  .topbar-inner {
    width: calc(100vw - 24px);
  }

  .brand span {
    font-size: 0.98rem;
  }

  .docs-main {
    padding-top: 16px;
  }

  .doc-content h1 {
    font-size: clamp(2.5rem, 11vw, 3.35rem);
  }

  .doc-content h2 {
    font-size: 1.65rem;
    padding-top: 24px;
  }

  .doc-content p,
  .doc-content li,
  .doc-content td,
  .doc-content th {
    font-size: 0.98rem;
  }

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