* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  background: var(--cp-surface);
  color: var(--cp-text);
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

button,
input {
  font: inherit;
}

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  right: 0;
  left: 0;
  height: 56px;
  border-bottom: 1px solid var(--cp-border);
  background: var(--cp-panel-strong);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 20px;
  gap: 16px;
}

.header-left,
.header-actions,
.brand {
  display: flex;
  align-items: center;
}

.header-left,
.header-actions {
  gap: 8px;
}

.brand {
  gap: 10px;
  color: var(--cp-text);
}

.brand:hover {
  text-decoration: none;
}

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

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 15px;
  font-weight: 600;
}

.brand small {
  color: var(--cp-text-muted);
  font-size: 10px;
  line-height: 1.15;
}

.icon-button,
.header-button {
  display: inline-grid;
  min-width: 34px;
  height: 34px;
  padding: 0 10px;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 0.625rem;
  background: transparent;
  color: var(--cp-text);
  cursor: pointer;
}

.icon-button:hover,
.header-button:hover {
  border-color: var(--cp-border);
  background: var(--cp-surface-soft);
  text-decoration: none;
}

.github-link {
  padding: 7px;
}

.github-link svg {
  width: 18px;
  height: 18px;
}

.menu-toggle {
  display: none;
}

.search-shell {
  position: relative;
  display: flex;
  align-items: center;
  width: min(360px, 31vw);
  height: 34px;
  padding: 0 10px;
  gap: 7px;
  border: 1px solid var(--cp-border-strong);
  border-radius: 0.625rem;
  background: var(--cp-surface);
}

.search-shell:focus-within {
  border-color: var(--cp-link);
  outline: 2px solid var(--cp-border);
}

.search-shell input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--cp-text);
  font-size: 14px;
}

.search-results {
  position: absolute;
  top: 40px;
  right: 0;
  left: 0;
  display: none;
  overflow: hidden;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface);
  box-shadow: var(--cp-shadow);
}

.search-results.visible {
  display: block;
}

.search-results a,
.search-empty {
  display: block;
  padding: 9px 11px;
  border-bottom: 1px solid var(--cp-border);
  font-size: 14px;
}

.search-results a:last-child {
  border-bottom: 0;
}

.search-results a:hover {
  background: var(--cp-surface-soft);
  text-decoration: none;
}

.search-empty {
  color: var(--cp-text-muted);
}

.sidebar {
  position: fixed;
  z-index: 20;
  top: 56px;
  bottom: 0;
  left: 0;
  width: 280px;
  overflow-y: auto;
  border-right: 1px solid var(--cp-border);
  background: var(--cp-bg-elevated);
  padding: 20px 12px 28px;
}

.sidebar-section-title {
  padding: 0 10px 9px;
  color: var(--cp-text-muted);
  font-size: 12px;
  font-weight: 600;
}

.sidebar-link {
  display: flex;
  align-items: flex-start;
  margin: 1px 0;
  padding: 7px 9px;
  gap: 7px;
  border-left: 3px solid transparent;
  border-radius: 0 0.625rem 0.625rem 0;
  color: var(--cp-text);
  font-size: 13px;
  line-height: 1.35;
}

.sidebar-link:hover {
  background: var(--cp-surface-soft);
  text-decoration: none;
}

.sidebar-link.active {
  border-left-color: var(--cp-link);
  background: var(--cp-surface-soft);
  color: var(--cp-text);
  font-weight: 600;
}

.nav-number {
  flex: 0 0 24px;
  color: var(--cp-text-muted);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 11px;
}

.sidebar-overlay {
  display: none;
}

.docs-layout {
  min-height: 100vh;
  margin-left: 280px;
  padding-top: 56px;
}

.content-shell {
  display: grid;
  grid-template-columns: minmax(0, 820px) 220px;
  width: min(100%, 1160px);
  margin: 0 auto;
  gap: 56px;
  padding: 28px 40px 36px;
}

.main-content {
  min-width: 0;
}

.breadcrumbs {
  display: flex;
  overflow: hidden;
  align-items: center;
  margin: 0 0 24px;
  gap: 8px;
  color: var(--cp-text-muted);
  font-size: 13px;
  white-space: nowrap;
}

.breadcrumbs span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
}

.article {
  min-height: 65vh;
}

.article h1 {
  max-width: 800px;
  margin: 0 0 20px;
  font-size: clamp(32px, 4vw, 42px);
  font-weight: 600;
  line-height: 1.17;
  letter-spacing: -0.025em;
}

.article h2 {
  margin: 42px 0 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--cp-border);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.25;
}

.article h3 {
  margin: 28px 0 10px;
  font-size: 20px;
  font-weight: 600;
}

.article h4 {
  margin: 24px 0 8px;
  font-size: 17px;
  font-weight: 600;
}

.article p {
  margin: 0 0 16px;
}

.article li {
  margin-bottom: 5px;
}

.article ul,
.article ol {
  margin-top: 8px;
  margin-bottom: 20px;
  padding-left: 28px;
}

.article blockquote {
  margin: 20px 0;
  padding: 14px 16px;
  border: 1px solid var(--cp-border);
  border-left: 4px solid var(--cp-link);
  background: var(--cp-surface-soft);
}

.article blockquote p {
  margin: 0;
}

.article table {
  display: block;
  width: 100%;
  overflow-x: auto;
  margin: 20px 0 28px;
  border-collapse: collapse;
  font-size: 14px;
}

.article th,
.article td {
  min-width: 128px;
  padding: 9px 12px;
  border: 1px solid var(--cp-border);
  text-align: left;
  vertical-align: top;
}

.article th {
  background: var(--cp-surface-soft);
  font-weight: 600;
}

.article pre {
  position: relative;
  overflow-x: auto;
  margin: 18px 0 24px;
  padding: 18px;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-bg-elevated);
  color: var(--cp-text);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 13px;
  line-height: 1.5;
}

.article code {
  border-radius: 4px;
  background: var(--cp-surface-soft);
  color: var(--cp-text);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 0.92em;
}

.article :not(pre) > code {
  padding: 2px 5px;
}

.article pre code {
  background: transparent;
  font-size: inherit;
}

.copy-button {
  position: absolute;
  top: 7px;
  right: 7px;
  padding: 4px 8px;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface);
  color: var(--cp-text-muted);
  cursor: pointer;
  font-size: 11px;
}

.article img {
  max-width: 100%;
}

.headerlink {
  margin-left: 7px;
  color: var(--cp-text-muted);
  opacity: 0;
  font-size: 0.7em;
}

h1:hover .headerlink,
h2:hover .headerlink,
h3:hover .headerlink {
  opacity: 1;
}

.article-toc {
  position: sticky;
  top: 80px;
  align-self: start;
  max-height: calc(100vh - 104px);
  overflow-y: auto;
  padding-left: 18px;
  border-left: 1px solid var(--cp-border);
}

.article-toc-title {
  margin-bottom: 9px;
  color: var(--cp-text);
  font-size: 13px;
  font-weight: 600;
}

.article-toc-link {
  display: block;
  padding: 4px 0;
  color: var(--cp-text-muted);
  font-size: 12px;
  line-height: 1.35;
}

.article-toc-link:hover,
.article-toc-link.active {
  color: var(--cp-link);
  text-decoration: none;
}

.page-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 52px;
  gap: 12px;
}

.page-nav-item {
  display: flex;
  min-height: 78px;
  flex-direction: column;
  justify-content: center;
  padding: 12px 14px;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface);
}

.page-nav-item:hover {
  border-color: var(--cp-link);
  text-decoration: none;
}

.page-nav-item span {
  color: var(--cp-text-muted);
  font-size: 11px;
}

.page-nav-item strong {
  color: var(--cp-link);
  font-size: 14px;
  font-weight: 600;
}

.page-nav-item.next {
  align-items: flex-end;
  text-align: right;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 48px;
  padding: 20px 0 0;
  border-top: 1px solid var(--cp-border);
  color: var(--cp-text-muted);
  font-size: 12px;
}

.scroll-top {
  position: fixed;
  z-index: 15;
  right: 20px;
  bottom: 20px;
  display: none;
  width: 38px;
  height: 38px;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface);
  color: var(--cp-text);
  cursor: pointer;
  box-shadow: var(--cp-shadow);
}

.scroll-top.visible {
  display: block;
}

@media (max-width: 1120px) {
  .content-shell {
    grid-template-columns: minmax(0, 820px);
    max-width: 900px;
  }

  .article-toc {
    display: none;
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: grid;
  }

  .brand small {
    display: none;
  }

  .search-shell {
    width: min(280px, 38vw);
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 160ms ease;
  }

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

  .sidebar-overlay {
    position: fixed;
    z-index: 19;
    inset: 56px 0 0;
    background: var(--cp-overlay);
  }

  .sidebar-overlay.visible {
    display: block;
  }

  .docs-layout {
    margin-left: 0;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 0 10px;
  }

  .brand strong {
    font-size: 13px;
  }

  .search-shell {
    position: static;
    width: 34px;
    padding: 0 9px;
  }

  .search-shell input {
    width: 0;
  }

  .search-shell:focus-within {
    position: absolute;
    right: 10px;
    left: 10px;
    width: auto;
    background: var(--cp-surface);
  }

  .search-shell:focus-within input {
    width: 100%;
  }

  .header-button {
    padding: 0 7px;
    font-size: 12px;
  }

  .content-shell {
    padding: 20px 18px 28px;
  }

  .article h1 {
    font-size: 32px;
  }

  .article h2 {
    font-size: 23px;
  }

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

  .site-footer {
    flex-direction: column;
    gap: 6px;
  }
}

@media print {
  .site-header,
  .sidebar,
  .article-toc,
  .page-nav,
  .scroll-top {
    display: none;
  }

  .docs-layout {
    margin: 0;
    padding: 0;
  }

  .content-shell {
    display: block;
    width: 100%;
    padding: 0;
  }
}