:root {
  color-scheme: dark;
  --bg: #09090b;
  --bg1: #111113;
  --bg2: #18181b;
  --bg3: #0c0c0e;
  --b: #27272a;
  --b2: #1e1e21;
  --t: #a1a1aa;
  --t1: #fafafa;
  --t2: #71717a;
  --t3: #52525b;
  --accent: #f6821f;
  --accentdim: rgba(246, 130, 31, 0.1);
  --link: #60a5fa;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", monospace;
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --sw: 240px;
  --tw: 220px;
  --th: 44px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--t);
  font-family: var(--font);
  font-feature-settings: "cv05", "ss01";
  font-size: 15px;
  line-height: 1.6;
}
a {
  color: inherit;
  text-decoration: none;
}

.shell {
  display: grid;
  grid-template-columns: var(--sw) 1fr;
  grid-template-rows: var(--th) 1fr;
  min-height: 100vh;
}
@media (min-width: 1200px) {
  .shell {
    grid-template-columns: var(--sw) 1fr var(--tw);
  }
}
@media (max-width: 1099px) {
  .shell {
    display: block;
    min-width: 0;
  }
}

.sidebar {
  grid-column: 1;
  grid-row: 1 / -1;
}
.topbar-wrap {
  grid-column: 2 / -1;
  grid-row: 1;
}
.content-col {
  grid-column: 2;
  grid-row: 2;
}
.toc-col {
  display: none;
}
@media (min-width: 1200px) {
  .toc-col {
    display: block;
    grid-column: 3;
    grid-row: 2;
  }
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  border-right: 1px solid var(--b);
  background: var(--bg1);
  z-index: 30;
}
@media (max-width: 1099px) {
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(82vw, 290px);
    height: 100dvh;
    transform: translateX(-100%);
    transition: transform 0.16s ease;
    box-shadow: 24px 0 48px rgba(0, 0, 0, 0.35);
  }
  body.nav-open .sidebar {
    transform: translateX(0);
  }
  body.nav-open {
    overflow: hidden;
  }
}
.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--th);
  padding: 0 16px;
  border-bottom: 1px solid var(--b);
}
.sidebar-close {
  display: none;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--b);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--t2);
  cursor: pointer;
}
@media (max-width: 1099px) {
  .sidebar-close {
    display: inline-flex;
  }
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--t1);
}
.brand-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 14px 10px 18px;
  scrollbar-width: thin;
  scrollbar-color: var(--b) transparent;
}
.nav-section {
  position: relative;
  margin-bottom: 18px;
  padding-bottom: 16px;
}
.nav-section:not(:last-child)::after {
  position: absolute;
  right: 8px;
  bottom: 0;
  left: 8px;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--b), transparent);
}
.nav-label {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 10px 9px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--t3);
  user-select: none;
}
.nav-list,
.nav-sub-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 11px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 13.25px;
  color: var(--t2);
  transition:
    border-color 0.1s,
    color 0.1s,
    background 0.1s;
  line-height: 1.45;
}
.nav-item:hover {
  color: var(--t1);
  background: rgba(255, 255, 255, 0.04);
}
.nav-item.active {
  color: var(--t1) !important;
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: transparent;
  font-weight: 650;
}
.nav-caret {
  margin-left: auto;
  opacity: 0.35;
  transition: transform 0.15s;
  flex-shrink: 0;
}
.nav-caret.open {
  transform: rotate(180deg);
}
.nav-sub-list {
  padding: 4px 0 2px 11px;
  border-left: 1px solid var(--b);
  margin: 3px 0 1px 14px;
}
.nav-item.sub {
  min-height: 29px;
  padding: 5px 10px;
  font-size: 12.5px;
  border-radius: 8px;
}

.sidebar-foot {
  padding: 6px;
  border-top: 1px solid var(--b);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.btn-link {
  text-decoration: none;
  display: inline-flex;
}
.btn-link.sidebar-cta,
.btn-link.sidebar-cta > button {
  width: 100%;
  display: flex;
  justify-content: center;
}
.sidebar-gh {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 5px;
  font-size: 12px;
  color: var(--t2);
  transition:
    color 0.1s,
    background 0.1s;
}
.sidebar-gh:hover {
  color: var(--t1);
  background: rgba(255, 255, 255, 0.04);
}
.sidebar-ext {
  margin-left: auto;
  opacity: 0.35;
}
.sidebar-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  font-size: 10px;
  font-weight: 800;
  color: var(--t2);
}

.topbar-wrap {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--b);
  background: rgba(9, 9, 11, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
@media (max-width: 1099px) {
  .topbar-wrap {
    position: sticky;
    grid-column: auto;
    grid-row: auto;
  }
}
.topbar {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 16px;
}
@media (max-width: 1099px) {
  .topbar {
    min-height: 56px;
    padding: 8px 14px;
  }
}
.nav-toggle {
  display: none;
  align-items: center;
  gap: 6px;
  justify-content: center;
  flex: 0 0 auto;
  margin-right: 10px;
  width: 34px;
  min-height: 32px;
  padding: 0;
  border: 1px solid var(--b);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--t);
  font: inherit;
  font-size: 12px;
  font-weight: 650;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
}
.nav-toggle span {
  display: none;
}
@media (max-width: 1099px) {
  .nav-toggle {
    display: inline-flex;
  }
}
.topbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}
.crumb-link {
  font-size: 12px;
  color: var(--t2);
  padding: 2px 4px;
  border-radius: 3px;
  transition: color 0.1s;
}
.crumb-link:hover {
  color: var(--t1);
}
.crumb-sep {
  color: var(--t3);
  font-size: 11px;
  margin: 0 2px;
  opacity: 0.5;
}
.crumb-select {
  appearance: none;
  -webkit-appearance: none;
  background-color: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--b);
  border-radius: 8px;
  padding: 5px 24px 5px 8px;
  font-size: 12px;
  font-family: var(--font);
  color: var(--t2);
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5'%3E%3Cpath d='M1 1l3 3 3-3' fill='none' stroke='%2352525b' stroke-width='1.2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 8px 5px;
  outline: none;
  transition:
    border-color 0.1s,
    color 0.1s;
  max-width: min(44vw, 220px);
}
.crumb-select:hover {
  color: var(--t1);
  background-color: rgba(255, 255, 255, 0.075);
}
.crumb-select:focus {
  border-color: var(--accent);
  color: var(--t1);
}
.crumb-select option {
  background: var(--bg1);
  color: var(--t);
}
.crumb-page {
  color: var(--t2);
  font-weight: 400;
}
@media (max-width: 699px) {
  .crumb-select {
    max-width: min(34vw, 150px);
  }
}

.content-col {
  min-width: 0;
  padding: 24px 32px 80px;
  overflow-x: hidden;
}
@media (max-width: 1099px) {
  .content-col {
    grid-column: auto;
    grid-row: auto;
    padding: 20px 16px 64px;
    overflow-x: clip;
  }
}
.sidebar-backdrop {
  display: none;
}
@media (max-width: 1099px) {
  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 25;
    display: block;
    border: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.16s ease;
  }
  body.nav-open .sidebar-backdrop {
    opacity: 1;
    pointer-events: auto;
  }
}

.toc-col {
  border-left: 1px solid var(--b);
}
.toc-sticky {
  position: sticky;
  top: calc(var(--th) + 16px);
  padding: 0 14px;
  max-height: calc(100vh - var(--th) - 32px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--b) transparent;
}
.toc-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--t2);
  margin-bottom: 10px;
}
.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.toc-list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--b);
  border-radius: 1px;
}
.toc-list li {
  margin: 0;
  position: relative;
}
.toc-sub {
  padding-left: 14px;
}

.toc-sub::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  width: 8px;
  height: 2px;
  background: var(--b);
}
.toc-link {
  display: block;
  padding: 3px 0 3px 18px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--t2);
  transition: color 0.12s;
  position: relative;
}

.toc-link::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--b);
  background: var(--bg);
  transition:
    border-color 0.12s,
    background 0.12s,
    box-shadow 0.12s;
}
.toc-link:hover {
  color: var(--t1);
}
.toc-link:hover::before {
  border-color: var(--t3);
}
.toc-link.active {
  color: var(--link);
  font-weight: 500;
}
.toc-link.active::before {
  border-color: var(--link);
  background: var(--link);
  box-shadow: 0 0 6px rgba(96, 165, 250, 0.4);
}

.toc-sub .toc-link::before {
  display: none;
}
.toc-sub .toc-link {
  padding-left: 6px;
  font-size: 12px;
}

.toc-suggest {
  margin-top: 20px;
}
.toc-suggest.has-toc {
  margin-top: 24px;
  padding-top: 14px;
  border-top: 1px solid var(--b);
}
.suggest-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 4px 0;
  font-size: 12px;
  color: var(--t2);
  transition: color 0.1s;
}
.suggest-link:hover {
  color: var(--t1);
}
.suggest-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.suggest-badge {
  flex-shrink: 0;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--t3);
  background: rgba(255, 255, 255, 0.04);
  padding: 1px 5px;
  border-radius: 3px;
}

.toc-tip {
  margin-top: 16px;
  padding: 10px;
  border: 1px solid var(--b);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.02);
}
.toc-tip-label {
  font-size: 9.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 4px;
}
.toc-tip-text {
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--t2);
}

.hero {
  margin-bottom: 40px;
}
.hero-banner {
  display: grid;
  border: 1px solid var(--b);
  border-radius: 12px;
  background: var(--bg2);
  overflow: hidden;
}
@media (min-width: 700px) {
  .hero-banner {
    grid-template-columns: 1fr 260px;
  }
}
.hero-left {
  padding: 36px 32px;
  background: radial-gradient(ellipse 70% 100% at 0 0, var(--accentdim), transparent 65%);
}
.hero-eyebrow {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accentdim);
  padding: 2px 8px;
  border-radius: 4px;
}
.hero-title {
  margin: 14px 0 0;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--t1);
}
.hero-lede {
  margin: 12px 0 0;
  max-width: 28em;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--t2);
}
.hero-actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.hero-right {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--b);
}
@media (max-width: 699px) {
  .hero {
    margin-bottom: 28px;
  }
  .hero-left {
    padding: 26px 20px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-right {
    border-top: 1px solid var(--b);
    border-left: none;
  }
}
.hero-stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--b);
}
.hero-stat:last-child {
  border-bottom: none;
}
.hero-stat-val {
  font-size: 17px;
  font-weight: 750;
  letter-spacing: -0.015em;
  color: var(--t1);
}
.hero-stat-label {
  font-size: 12px;
  color: var(--t2);
  margin-top: 1px;
}

.feat-heading {
  font-size: 18px;
  font-weight: 700;
  color: var(--t1);
  margin: 32px 0 12px;
}
.feat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--b);
  border-radius: 10px;
  overflow: hidden;
}
@media (min-width: 700px) {
  .feat-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.feat-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  border-right: 1px solid var(--b);
  border-bottom: 1px solid var(--b);
  background: var(--bg2);
  transition: background 0.12s;
  color: inherit;
}
.feat-card:hover {
  background: #1f1f23;
}
.feat-grid > .feat-card:nth-child(4n) {
  border-right: none;
}
.feat-grid > .feat-card:nth-last-child(-n + 4) {
  border-bottom: none;
}
@media (max-width: 699px) {
  .feat-grid > .feat-card:nth-child(2n) {
    border-right: none;
  }
  .feat-grid > .feat-card:nth-last-child(-n + 4) {
    border-bottom: 1px solid var(--b);
  }
  .feat-grid > .feat-card:nth-last-child(-n + 2) {
    border-bottom: none;
  }
}
.feat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--accentdim);
  color: var(--accent);
}
.feat-title {
  margin: 0;
  font-size: 12.5px;
  font-weight: 650;
  color: var(--t1);
}
.feat-body {
  margin: 2px 0 0;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--t2);
}

.prose {
  font-size: 15px;
  line-height: 1.72;
  color: var(--t);
}
@media (max-width: 699px) {
  .prose {
    font-size: 14px;
    line-height: 1.68;
  }
}
.prose > *:first-child {
  margin-top: 0;
}
.prose h1 {
  font-size: 30px;
  font-weight: 750;
  letter-spacing: -0.03em;
  margin: 0 0 2px;
  color: var(--t1);
  line-height: 1.15;
}
.prose h1 + p {
  margin-top: 4px;
  color: var(--t2);
}
.prose h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 44px 0 10px;
  padding-top: 18px;
  border-top: 1px solid var(--b2);
  color: var(--t1);
  scroll-margin-top: calc(var(--th) + 16px);
}
@media (max-width: 699px) {
  .prose h2 {
    font-size: 18px;
    margin-top: 32px;
    padding-top: 14px;
  }
}
.prose h3 {
  font-size: 15.5px;
  font-weight: 650;
  margin: 26px 0 6px;
  color: var(--t1);
  scroll-margin-top: calc(var(--th) + 16px);
}
.prose p {
  margin: 8px 0;
}
.prose a {
  color: var(--link);
  font-weight: 500;
}
.prose a:hover {
  text-decoration: underline;
}
.prose strong {
  color: var(--t1);
  font-weight: 650;
}
.prose ul,
.prose ol {
  padding-left: 1.2em;
  margin: 8px 0;
}
.prose li {
  margin: 2px 0;
}
.prose li::marker {
  color: var(--t3);
}

.prose code {
  font-family: var(--mono);
  font-size: 0.86em;
  padding: 1.5px 5px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--t1);
  font-weight: 450;
}

.prose .code-block {
  position: relative;
  margin: 14px 0;
  border: 1px solid var(--b);
  border-radius: 8px;
  background: var(--bg3);
  overflow: hidden;
}
.prose .code-block pre {
  margin: 0;
  padding: 12px 14px;
  border: none;
  border-radius: 0;
  background: transparent !important;
  overflow-x: auto;
  line-height: 1.6;
}
.prose .code-block code {
  padding: 0;
  background: transparent;
  font-size: 12.5px;
  font-weight: 400;
  color: var(--t);
}
.prose .code-lang {
  position: absolute;
  top: 0;
  left: 0;
  padding: 2px 8px;
  font-size: 9.5px;
  font-weight: 600;
  color: var(--t3);
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid var(--b);
  border-right: 1px solid var(--b);
  border-radius: 0 0 4px 0;
  user-select: none;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.prose .code-block:has(.code-lang) pre {
  padding-top: 26px;
}
.copy-btn {
  position: absolute;
  top: 3px;
  right: 4px;
  padding: 1px 7px;
  font-size: 10px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--t3);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--b);
  border-radius: 4px;
  cursor: pointer;
  opacity: 0;
  transition:
    opacity 0.12s,
    color 0.1s;
}
.prose .code-block:hover .copy-btn {
  opacity: 1;
}
.copy-btn:hover {
  color: var(--t1);
  background: rgba(255, 255, 255, 0.06);
}

.prose pre {
  margin: 14px 0;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--b);
  background: var(--bg3);
  overflow-x: auto;
  line-height: 1.6;
}
.prose pre code {
  padding: 0;
  background: transparent;
  color: var(--t);
  font-size: 12.5px;
  font-weight: 400;
}

.prose .shiki,
.prose .shiki code {
  background: transparent !important;
}
.prose .shiki span {
  color: var(--shiki-dark) !important;
}

.prose blockquote {
  margin: 14px 0;
  padding: 1px 0 1px 14px;
  border-left: 2px solid var(--accent);
  color: var(--t2);
}
.prose blockquote p {
  margin: 3px 0;
}

.prose table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 16px 0;
  font-size: 13px;
  border: 1px solid var(--b);
  border-radius: 8px;
  background: var(--bg3);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
@media (max-width: 699px) {
  .prose table {
    display: block;
    width: 100%;
    font-size: 12px;
  }
}
.prose th,
.prose td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--b);
  min-width: 120px;
}
.prose th {
  background: rgba(255, 255, 255, 0.035);
  color: var(--t1);
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.prose th:first-child {
  border-top-left-radius: 7px;
}
.prose th:last-child {
  border-top-right-radius: 7px;
}
.prose tr:last-child td {
  border-bottom: none;
}
.prose tr:hover td {
  background: rgba(255, 255, 255, 0.012);
}

.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--b);
  background: var(--bg2);
  padding: 4px;
}
.prose hr {
  border: none;
  border-top: 1px solid var(--b2);
  margin: 28px 0;
}