:root {
  --book-bar-height: 64px;
  --book-sidebar-width: 282px;
  --book-content-max: 1160px;
  --book-radius: 12px;
  --book-transition: 180ms ease;
}

:root[data-book-theme="light"] {
  color-scheme: light;
  --book-canvas: #f4f7fb;
  --book-sidebar: #fbfcfe;
  --book-surface: #ffffff;
  --book-surface-2: #edf3fa;
  --book-text: #142238;
  --book-muted: #52647a;
  --book-line: #c9d5e3;
  --book-line-strong: #9fb0c4;
  --book-accent: #0b63ce;
  --book-accent-strong: #084a9a;
  --book-accent-soft: #e4effd;
  --book-header: rgb(247 250 254 / 94%);
  --book-backdrop: rgb(8 18 32 / 58%);
  --book-focus: #0877e8;
  --book-shadow: 0 12px 35px rgb(33 54 82 / 14%);

  --bg: #f4f7fb;
  --page: #f4f7fb;
  --panel: #ffffff;
  --panel2: #edf3fa;
  --surface: #ffffff;
  --surface-2: #edf3fa;
  --text: #18263a;
  --ink: #18263a;
  --ink-dim: #5c6d82;
  --muted: #52647a;
  --line: #c9d5e3;
  --accent: #075fc5;
  --on-accent: #ffffff;
  --accent-strong: #084a9a;
  --accent-2: #7046c8;
  --accent2: #7046c8;
  --teal: #006d62;
  --on-teal: #ffffff;
  --teal-strong: #005148;
  --blue: #245da5;
  --gold: #805b00;
  --red: #a2303a;
  --amber: #765100;
  --soft: #e3f2ef;
  --soft-teal: #e3f2ef;
  --soft-blue: #e5eef9;
  --soft-red: #f7e8e9;
  --soft-amber: #f7efd9;
  --good: #176c32;
  --good-bg: #e5f5e9;
  --warn: #725000;
  --warn-bg: #fff3c4;
  --code: #e9eef5;
  --shadow: 0 10px 28px rgb(33 54 82 / 10%);
}

:root[data-book-theme="dark"] {
  color-scheme: dark;
  --book-canvas: #07111f;
  --book-sidebar: #0a1727;
  --book-surface: #0e1d30;
  --book-surface-2: #14263c;
  --book-text: #edf5ff;
  --book-muted: #aebed0;
  --book-line: #29425e;
  --book-line-strong: #43617f;
  --book-accent: #79b8ff;
  --book-accent-strong: #a8d1ff;
  --book-accent-soft: #102c4e;
  --book-header: rgb(7 17 31 / 94%);
  --book-backdrop: rgb(1 6 13 / 72%);
  --book-focus: #72b7ff;
  --book-shadow: none;

  --bg: #09131f;
  --page: #09131f;
  --panel: #101f31;
  --panel2: #17293e;
  --surface: #101f31;
  --surface-2: #17293e;
  --text: #edf5ff;
  --ink: #edf5ff;
  --ink-dim: #aebed0;
  --muted: #aebed0;
  --line: #2c435d;
  --accent: #83bdff;
  --on-accent: #07111f;
  --accent-strong: #afd5ff;
  --accent-2: #c3a7ff;
  --accent2: #c3a7ff;
  --teal: #77d7c7;
  --on-teal: #07111f;
  --teal-strong: #a0e5d9;
  --blue: #9bc5f2;
  --gold: #e7c979;
  --red: #f1a5aa;
  --amber: #e8c46e;
  --soft: #13352f;
  --soft-teal: #13352f;
  --soft-blue: #172f49;
  --soft-red: #402329;
  --soft-amber: #3c3118;
  --good: #82dd9a;
  --good-bg: #102b1a;
  --warn: #f0cc67;
  --warn-bg: #302608;
  --code: #07101b;
  --shadow: none;
}

html {
  scroll-padding-block-start: calc(var(--book-bar-height) + 22px);
}

:root.book-shell-booting body,
body.book-shell-active {
  min-width: 0;
  padding-block-start: var(--book-bar-height);
  padding-inline-start: var(--book-sidebar-width);
  background-color: var(--book-canvas);
}

:root.book-shell-booting body > header.site-header,
body.book-shell-active > header.site-header {
  display: none !important;
}

body.book-shell-active.book-sidebar-collapsed {
  padding-inline-start: 0;
}

.book-skip-link {
  position: fixed;
  inset-block-start: 8px;
  inset-inline-start: 72px;
  z-index: 1400;
  translate: 0 -160%;
  border: 2px solid var(--book-focus);
  border-radius: 8px;
  padding: 9px 13px;
  background: var(--book-surface);
  color: var(--book-text);
  font: 700 14px/1.2 system-ui, sans-serif;
  text-decoration: none;
  transition: translate var(--book-transition);
}

.book-skip-link:focus {
  translate: 0 0;
}

.book-topbar {
  position: fixed !important;
  inset: 0 0 auto !important;
  z-index: 1200;
  display: grid !important;
  grid-template-columns: auto minmax(190px, auto) minmax(180px, 1fr) auto;
  align-items: center !important;
  gap: 12px !important;
  width: 100% !important;
  height: var(--book-bar-height) !important;
  min-height: var(--book-bar-height) !important;
  margin: 0 !important;
  border: 0 !important;
  border-block-end: 1px solid var(--book-line) !important;
  padding: 0 16px !important;
  background: var(--book-header) !important;
  color: var(--book-text) !important;
  box-shadow: none !important;
  backdrop-filter: blur(15px);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

.book-menu-toggle,
.book-theme-toggle,
.book-search-toggle,
.book-bookmark-toggle,
.book-source-link,
.book-home-link {
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--book-line) !important;
  border-radius: 10px !important;
  background: var(--book-surface) !important;
  color: var(--book-text) !important;
  box-shadow: none !important;
  font: 700 14px/1 system-ui, sans-serif !important;
  text-decoration: none !important;
}

.book-menu-toggle,
.book-theme-toggle,
.book-search-toggle,
.book-bookmark-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 11px;
  cursor: pointer;
}

.book-menu-toggle {
  font-size: 20px !important;
}

.book-home-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  border-color: transparent !important;
  padding: 0 8px 0 4px;
  background: transparent !important;
}

.book-home-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--book-line-strong);
  border-radius: 10px;
  color: var(--book-accent);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.book-home-title {
  overflow: hidden;
  max-width: 230px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.book-chapter-position {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  min-width: 0;
  color: var(--book-muted);
  font: 650 12px/1.2 system-ui, sans-serif;
}

.book-chapter-group {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.book-chapter-index {
  flex: 0 0 auto;
  color: var(--book-accent);
  font-weight: 800;
  white-space: nowrap;
}

.book-topbar-actions {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-end !important;
  flex-wrap: nowrap !important;
  gap: 8px !important;
  width: auto !important;
  margin: 0 !important;
}

.book-source-link,
.book-theme-toggle,
.book-search-toggle,
.book-bookmark-toggle {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 7px !important;
  width: auto !important;
  margin: 0 !important;
  padding: 0 12px !important;
}

.book-theme-icon {
  font-size: 18px;
}

.book-action-icon,
.book-bookmark-icon {
  font-size: 18px;
  line-height: 1;
}

.book-bookmark-toggle[aria-pressed="true"] {
  border-color: var(--book-accent) !important;
  background: var(--book-accent-soft) !important;
  color: var(--book-accent-strong) !important;
}

.book-menu-toggle:hover,
.book-theme-toggle:hover,
.book-search-toggle:hover,
.book-bookmark-toggle:hover,
.book-source-link:hover {
  border-color: var(--book-accent) !important;
  color: var(--book-accent-strong) !important;
}

.book-menu-toggle:focus-visible,
.book-theme-toggle:focus-visible,
.book-search-toggle:focus-visible,
.book-bookmark-toggle:focus-visible,
.book-source-link:focus-visible,
.book-home-link:focus-visible,
.book-sidebar a:focus-visible,
.book-page-outline a:focus-visible,
.book-pager a:focus-visible {
  outline: 3px solid var(--book-focus) !important;
  outline-offset: 2px !important;
}

.book-reading-progress {
  position: absolute;
  inset: auto 0 -1px;
  height: 3px;
  overflow: hidden;
  background: transparent;
}

.book-reading-progress-value {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--book-accent);
  transform: scaleX(0);
  transform-origin: left center;
}

.book-sidebar {
  position: fixed;
  inset-block: var(--book-bar-height) 0;
  inset-inline-start: 0;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  width: var(--book-sidebar-width);
  margin: 0;
  border: 0;
  border-inline-end: 1px solid var(--book-line);
  padding: 18px 12px 24px;
  overflow: hidden;
  overscroll-behavior: contain;
  background: var(--book-sidebar);
  color: var(--book-text);
  box-shadow: none;
  scrollbar-color: var(--book-line-strong) transparent;
  opacity: 1;
  transform: translateX(0);
  transition:
    opacity var(--book-transition),
    transform var(--book-transition);
}

.book-sidebar-header {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px;
  margin: 0 6px 18px;
  padding: 2px 4px 16px;
  border-block-end: 1px solid var(--book-line);
}

.book-sidebar-header > strong,
.book-sidebar-header > span {
  grid-column: 1;
}

.book-sidebar-header strong {
  color: var(--book-text);
  font: 800 15px/1.3 system-ui, sans-serif;
}

.book-sidebar-close {
  display: none;
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--book-line);
  border-radius: 10px;
  background: var(--book-surface);
  color: var(--book-text);
  font: 400 25px/1 system-ui, sans-serif;
  cursor: pointer;
}

.book-sidebar-close:hover {
  border-color: var(--book-accent);
  color: var(--book-accent);
}

.book-sidebar-close:focus-visible {
  outline: 3px solid var(--book-focus);
  outline-offset: 2px;
}

.book-sidebar-header span,
.book-sidebar-footer span {
  color: var(--book-muted);
  font: 500 12px/1.45 system-ui, sans-serif;
}

.book-bookmarks-panel {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  max-height: clamp(112px, 32vh, 240px);
  min-height: 0;
  margin: 0 6px 18px;
  border: 1px solid var(--book-line);
  border-radius: 10px;
  padding: 11px;
  background: var(--book-surface);
}

.book-bookmarks-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 0 !important;
  color: var(--book-text) !important;
  font: 800 12px/1.35 system-ui, sans-serif !important;
}

.book-bookmarks-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  min-height: 24px;
  border-radius: 999px;
  background: var(--book-accent-soft);
  color: var(--book-accent-strong);
  font-size: 11px;
}

.book-bookmarks-empty-message {
  margin: 7px 0 0 !important;
  color: var(--book-muted) !important;
  font: 500 11px/1.45 system-ui, sans-serif !important;
}

.book-bookmarks-list {
  display: grid;
  gap: 3px;
  min-height: 0;
  margin: 8px 0 0;
  padding: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: var(--book-line-strong) transparent;
  list-style: none;
}

.book-bookmarks-empty .book-bookmarks-list {
  display: none;
}

.book-bookmark-link {
  display: block !important;
  border-radius: 7px !important;
  padding: 7px 8px !important;
  background: transparent !important;
  color: var(--book-muted) !important;
  font: 650 11px/1.4 system-ui, sans-serif !important;
  text-decoration: none !important;
}

.book-bookmark-link:hover,
.book-bookmark-link[aria-current="page"] {
  background: var(--book-accent-soft) !important;
  color: var(--book-text) !important;
}

.book-chapter-nav {
  display: block !important;
  flex: 1 1 auto;
  min-height: 0;
  width: auto !important;
  margin: 0 !important;
  padding: 0 2px 0 0 !important;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: var(--book-line-strong) transparent;
}

.book-nav-group {
  margin-block-end: 21px;
}

.book-nav-group-title {
  margin: 0 10px 7px !important;
  color: var(--book-muted) !important;
  font: 800 10px/1.3 system-ui, sans-serif !important;
  letter-spacing: 0.1em !important;
  text-transform: uppercase;
}

.book-nav-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.book-chapter-link {
  display: grid !important;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  align-items: start !important;
  gap: 6px !important;
  min-height: 44px !important;
  width: 100% !important;
  margin: 0 !important;
  border: 0 !important;
  border-inline-start: 3px solid transparent !important;
  border-radius: 8px !important;
  padding: 9px 8px 9px 7px !important;
  background: transparent !important;
  color: var(--book-muted) !important;
  font: 570 13px/1.42 system-ui, sans-serif !important;
  text-align: start;
  text-decoration: none !important;
}

.book-chapter-link:hover {
  background: var(--book-surface-2) !important;
  color: var(--book-text) !important;
}

.book-chapter-link[aria-current="page"] {
  border-inline-start-color: var(--book-accent) !important;
  background: var(--book-accent-soft) !important;
  color: var(--book-text) !important;
  font-weight: 750 !important;
}

.book-chapter-number {
  color: var(--book-accent);
  font: 750 10px/1.7 ui-monospace, "Cascadia Code", Consolas, monospace;
}

.book-chapter-title {
  min-width: 0;
}

.book-chapter-bookmark-marker {
  align-self: center;
  color: var(--book-accent);
  font-size: 12px;
  opacity: 0;
}

.book-chapter-bookmarked .book-chapter-bookmark-marker {
  opacity: 1;
}

.book-sidebar-footer {
  flex: 0 0 auto;
  display: grid;
  gap: 7px;
  margin: 4px 6px 0;
  padding: 18px 4px 0;
  border-block-start: 1px solid var(--book-line);
}

.book-sidebar-footer a {
  color: var(--book-accent) !important;
  font: 700 12px/1.4 system-ui, sans-serif !important;
}

.book-sidebar-collapsed .book-sidebar {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-105%);
}

.book-drawer-backdrop {
  position: fixed;
  inset: var(--book-bar-height) 0 0;
  z-index: 1050;
  visibility: hidden;
  opacity: 0;
  background: var(--book-backdrop);
  pointer-events: none;
  transition:
    opacity var(--book-transition),
    visibility var(--book-transition);
}

.book-search-dialog {
  width: min(760px, calc(100vw - 32px));
  max-width: 760px;
  max-height: min(760px, calc(100vh - 48px));
  margin: auto;
  border: 1px solid var(--book-line-strong);
  border-radius: 15px;
  padding: 0;
  overflow: hidden;
  background: var(--book-surface);
  color: var(--book-text);
  box-shadow: 0 24px 80px rgb(0 0 0 / 34%);
}

.book-search-dialog::backdrop {
  background: var(--book-backdrop);
  backdrop-filter: blur(4px);
}

.book-search-shell {
  display: grid;
  grid-template-rows: auto auto auto minmax(0, 1fr);
  max-height: min(760px, calc(100vh - 48px));
}

.book-search-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  border-block-end: 1px solid var(--book-line);
  padding: 18px 20px 15px;
}

.book-search-title-group h2 {
  margin: 0 !important;
  color: var(--book-text) !important;
  font: 820 20px/1.25 system-ui, sans-serif !important;
}

.book-search-title-group p {
  margin: 5px 0 0 !important;
  color: var(--book-muted) !important;
  font: 500 12px/1.45 system-ui, sans-serif !important;
}

.book-search-close-form {
  margin: 0;
}

.book-search-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--book-line);
  border-radius: 10px;
  padding: 0;
  background: var(--book-surface-2);
  color: var(--book-text);
  font: 400 26px/1 system-ui, sans-serif;
  cursor: pointer;
}

.book-search-close:hover {
  border-color: var(--book-accent);
  color: var(--book-accent-strong);
}

.book-search-region {
  padding: 15px 20px 0;
}

.book-search-label {
  display: block;
  margin-block-end: 6px;
  color: var(--book-text);
  font: 750 12px/1.35 system-ui, sans-serif;
}

.book-search-input-row {
  position: relative;
}

.book-search-input {
  width: 100%;
  min-height: 48px;
  margin: 0 !important;
  border: 1px solid var(--book-line-strong) !important;
  border-radius: 10px !important;
  padding: 10px 78px 10px 13px !important;
  background: var(--book-canvas) !important;
  color: var(--book-text) !important;
  box-shadow: none !important;
  font: 600 15px/1.4 system-ui, sans-serif !important;
}

.book-search-input:focus-visible,
.book-search-close:focus-visible,
.book-search-result-link:focus-visible {
  outline: 3px solid var(--book-focus) !important;
  outline-offset: 2px !important;
}

.book-search-shortcut {
  position: absolute;
  inset: 50% 10px auto auto;
  border: 1px solid var(--book-line);
  border-radius: 6px;
  padding: 4px 7px;
  background: var(--book-surface);
  color: var(--book-muted);
  font: 700 10px/1.2 ui-monospace, "Cascadia Code", Consolas, monospace;
  transform: translateY(-50%);
}

.book-search-status {
  min-height: 34px;
  margin: 0 !important;
  padding: 9px 20px 7px;
  color: var(--book-muted) !important;
  font: 600 11px/1.45 system-ui, sans-serif !important;
}

.book-search-results {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0 12px 16px;
  overflow-y: auto;
  overscroll-behavior: contain;
  list-style: none;
}

.book-search-result-link {
  display: grid !important;
  gap: 4px !important;
  border: 1px solid transparent !important;
  border-radius: 10px !important;
  padding: 11px 12px !important;
  background: transparent !important;
  color: var(--book-text) !important;
  text-decoration: none !important;
}

.book-search-result-link:hover {
  border-color: var(--book-line) !important;
  background: var(--book-accent-soft) !important;
}

.book-search-result-link strong {
  color: var(--book-text);
  font: 780 14px/1.35 system-ui, sans-serif;
}

.book-search-result-meta {
  color: var(--book-accent);
  font: 750 10px/1.35 system-ui, sans-serif;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.book-search-result-chapter {
  color: var(--book-muted);
  font: 650 11px/1.35 system-ui, sans-serif;
}

.book-search-result-excerpt {
  color: var(--book-muted);
  font: 500 12px/1.5 system-ui, sans-serif;
}

.book-page-outline {
  width: min(100%, 920px);
  margin: 28px auto;
  border: 1px solid var(--book-line);
  border-radius: var(--book-radius);
  background: var(--book-surface);
  color: var(--book-text);
  box-shadow: var(--book-shadow);
}

.book-page-outline-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 52px;
  padding: 12px 16px;
  color: var(--book-text) !important;
  font: 800 15px/1.3 system-ui, sans-serif !important;
  cursor: pointer;
}

.book-page-outline-summary:hover {
  background: var(--book-surface-2) !important;
}

.book-page-outline-count {
  color: var(--book-muted);
  font-size: 12px;
  font-weight: 600;
}

.book-page-outline-nav {
  display: block !important;
  width: auto !important;
  margin: 0 !important;
  border-block-start: 1px solid var(--book-line);
  padding: 12px 16px 16px !important;
}

.book-page-outline-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: outline;
}

.book-page-outline-item {
  min-width: 0;
  counter-increment: outline;
}

.book-page-outline-sublist {
  display: grid;
  gap: 2px;
  margin: 2px 0 5px 18px;
  padding: 0;
  list-style: none;
}

.book-page-outline-sublist .book-page-outline-item {
  counter-increment: none;
}

.book-page-outline-link {
  display: grid !important;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 5px !important;
  min-height: 40px !important;
  align-items: center;
  border: 0 !important;
  border-radius: 7px !important;
  padding: 6px 8px !important;
  background: transparent !important;
  color: var(--book-muted) !important;
  font: 600 13px/1.35 system-ui, sans-serif !important;
  text-decoration: none !important;
}

.book-page-outline-link::before {
  content: counter(outline, decimal-leading-zero);
  color: var(--book-accent);
  font: 750 10px/1 ui-monospace, "Cascadia Code", Consolas, monospace;
}

.book-page-outline-level-3 .book-page-outline-link {
  min-height: 34px !important;
  color: var(--book-muted) !important;
  font-size: 12px !important;
  font-weight: 550 !important;
}

.book-page-outline-level-3 .book-page-outline-link::before {
  content: "↳";
  font-size: 13px;
}

.book-page-outline-link:hover,
.book-page-outline-link[aria-current="location"] {
  background: var(--book-accent-soft) !important;
  color: var(--book-text) !important;
}

.book-heading-anchor {
  display: inline-flex;
  align-items: center;
  min-width: 32px;
  min-height: 32px;
  margin-inline-start: 4px;
  color: var(--book-accent) !important;
  font-size: 0.64em;
  text-decoration: none !important;
  opacity: 0;
  vertical-align: middle;
  transition: opacity var(--book-transition);
}

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

body.book-shell-active main section[id],
body.book-shell-active main article[id],
body.book-shell-active main h2[id],
body.book-shell-active main h3[id] {
  scroll-margin-block-start: calc(var(--book-bar-height) + 22px);
}

.book-pager {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px !important;
  width: min(var(--book-content-max), calc(100% - 32px)) !important;
  margin: 28px auto 48px !important;
  padding: 0 !important;
}

.book-pager-link {
  display: grid !important;
  gap: 7px !important;
  min-height: 92px !important;
  border: 1px solid var(--book-line) !important;
  border-radius: var(--book-radius) !important;
  padding: 15px 17px !important;
  background: var(--book-surface) !important;
  color: var(--book-text) !important;
  box-shadow: var(--book-shadow);
  text-decoration: none !important;
}

.book-pager-link:hover {
  border-color: var(--book-accent) !important;
  background: var(--book-accent-soft) !important;
}

.book-pager-next {
  text-align: end;
}

.book-pager-direction {
  color: var(--book-accent);
  font: 750 11px/1.3 system-ui, sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.book-pager-link strong {
  font: 780 15px/1.4 system-ui, sans-serif;
}

body.book-shell-active .toolbar,
body.book-shell-active .searchbar {
  top: calc(var(--book-bar-height) + 8px);
}

body.book-shell-active nav.toc,
body.book-shell-active .themebtn,
body.book-shell-active .site-theme-toggle {
  display: none !important;
}

body.book-shell-active.book-family-npu-practice .wrap {
  display: block;
}

body.book-shell-active.book-family-npu-practice main {
  max-width: 1180px;
  margin-inline: auto;
}

:root[data-book-theme="light"] body.book-family-practice > header:not(.book-topbar) {
  background: linear-gradient(135deg, #e7f0fc, #f0ecfb);
}

:root[data-book-theme="light"] body.book-family-practice h3 {
  color: #174f89;
}

:root[data-book-theme="light"] body.book-family-practice nav:not(.book-topbar-actions):not(.book-chapter-nav):not(.book-page-outline-nav):not(.book-pager) a,
:root[data-book-theme="light"] body.book-family-practice .chip {
  background: var(--panel2);
  color: var(--ink);
}

:root[data-book-theme="light"] body.book-family-practice .toolbar {
  background: rgb(244 247 251 / 94%);
}

:root[data-book-theme="light"] body.book-family-practice input {
  background: #ffffff;
  color: var(--ink);
}

:root[data-book-theme="light"] body.book-family-practice summary,
:root[data-book-theme="light"] body.book-family-practice .answer {
  color: var(--ink);
}

:root[data-book-theme="light"] body.book-family-practice .resource {
  background: var(--panel);
}

:root[data-book-theme="light"] body.book-family-practice .why {
  background: #e4f1fd;
  color: #17456f;
}

:root[data-book-theme="light"] body.book-family-practice code {
  color: #233247;
}

:root[data-book-theme="light"] body.book-family-practice th {
  background: #e4edf8;
  color: #183f6a;
}

:root[data-book-theme="light"] body.book-family-practice tr:nth-child(even) td {
  background: #f5f8fc;
}

@media (max-width: 1100px) {
  .book-topbar {
    grid-template-columns: auto minmax(170px, auto) minmax(120px, 1fr) auto;
  }

  .book-chapter-group {
    display: none;
  }
}

@media (max-width: 900px) {
  .book-search-toggle,
  .book-bookmark-toggle {
    width: 44px !important;
    padding-inline: 0 !important;
  }

  .book-action-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}

@media (max-width: 1180px) {
  :root.book-shell-booting body,
  body.book-shell-active,
  body.book-shell-active.book-sidebar-collapsed {
    padding-inline-start: 0;
  }

  .book-topbar {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .book-chapter-position {
    display: none;
  }

  .book-sidebar {
    width: min(320px, 86vw);
    border-inline-end-color: var(--book-line-strong);
    box-shadow: 14px 0 40px rgb(0 0 0 / 24%);
    opacity: 0;
    pointer-events: none;
    transform: translateX(-105%);
  }

  .book-sidebar-close {
    display: inline-flex;
  }

  .book-drawer-open {
    overflow: hidden;
  }

  .book-drawer-open .book-sidebar {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
  }

  .book-drawer-open .book-drawer-backdrop {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 620px) {
  .book-topbar {
    gap: 6px !important;
    padding-inline: 8px !important;
  }

  .book-home-link {
    gap: 7px;
    min-width: 0;
  }

  .book-home-title {
    font-size: 13px;
  }

  .book-source-link {
    display: none !important;
  }

  .book-theme-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .book-page-outline {
    width: calc(100% - 22px);
    margin-block: 20px;
  }

  .book-page-outline-list {
    grid-template-columns: 1fr;
  }

  .book-search-dialog {
    width: calc(100vw - 18px);
    max-height: calc(100vh - 18px);
  }

  .book-search-shell {
    max-height: calc(100vh - 18px);
  }

  .book-search-header {
    padding-inline: 14px;
  }

  .book-search-region {
    padding-inline: 14px;
  }

  .book-search-status {
    padding-inline: 14px;
  }

  .book-pager {
    grid-template-columns: 1fr;
    width: calc(100% - 22px) !important;
  }

  .book-pager-spacer {
    display: none;
  }

  .book-pager-next {
    text-align: start;
  }
}

@media (max-width: 420px) {
  .book-home-title {
    display: none;
  }

  .book-home-link {
    width: 44px;
    padding: 0 !important;
  }

  .book-home-mark {
    width: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }

  body.book-shell-active,
  .book-skip-link,
  .book-sidebar,
  .book-drawer-backdrop,
  .book-heading-anchor {
    transition: none !important;
  }
}

@media print {
  :root[data-book-theme] {
    color-scheme: light !important;
    --book-canvas: #ffffff;
    --book-sidebar: #ffffff;
    --book-surface: #ffffff;
    --book-surface-2: #f3f5f7;
    --book-text: #111111;
    --book-muted: #333333;
    --book-line: #777777;
    --book-line-strong: #555555;
    --book-accent: #064f91;
    --book-accent-strong: #063d70;
    --book-accent-soft: #ffffff;
    --book-shadow: none;

    --bg: #ffffff;
    --page: #ffffff;
    --panel: #ffffff;
    --panel2: #f3f5f7;
    --surface: #ffffff;
    --surface-2: #f3f5f7;
    --text: #111111;
    --ink: #111111;
    --ink-dim: #333333;
    --muted: #333333;
    --line: #777777;
    --accent: #064f91;
    --accent-strong: #063d70;
    --on-accent: #111111;
    --accent-2: #493080;
    --accent2: #493080;
    --teal: #00574f;
    --teal-strong: #004b45;
    --on-teal: #111111;
    --blue: #164f8b;
    --gold: #604400;
    --red: #812a32;
    --amber: #5d4100;
    --soft: #ffffff;
    --soft-teal: #ffffff;
    --soft-blue: #ffffff;
    --soft-red: #ffffff;
    --soft-amber: #ffffff;
    --good: #155b2b;
    --good-bg: #ffffff;
    --warn: #5d4100;
    --warn-bg: #ffffff;
    --green-bg: #ffffff;
    --green-ink: #155b2b;
    --amber-bg: #ffffff;
    --amber-ink: #5d4100;
    --red-bg: #ffffff;
    --red-ink: #812a32;
    --code: #f3f5f7;
    --code-ink: #111111;
    --hero-grad: none;
    --chip-bg: #ffffff;
    --head-ink: #111111;
    --row-alt: #ffffff;
    --info-border: #777777;
    --info-bg: #ffffff;
    --good-border: #777777;
    --warn-border: #777777;
    --summary-hover: #ffffff;
    --why-bg: #ffffff;
    --why-ink: #111111;
    --mark-bg: #ffffff;
    --mark-ink: #111111;
    --hover-bg: #ffffff;
    --core-border: #777777;
    --core-bg: #ffffff;
    --core-ink: #111111;
    --deep-border: #777777;
    --deep-bg: #ffffff;
    --deep-ink: #111111;
    --wrong-border: #777777;
    --shadow: none;
  }

  body.book-shell-active {
    padding: 0 !important;
    background: #ffffff !important;
    color: #111111 !important;
  }

  .book-topbar,
  .book-sidebar,
  .book-drawer-backdrop,
  .book-skip-link,
  .book-search-dialog,
  .book-page-outline,
  .book-pager {
    display: none !important;
  }

  body.book-shell-active > header:not(.book-topbar),
  body.book-shell-active header.hero,
  body.book-shell-active .panel,
  body.book-shell-active .card,
  body.book-shell-active .resource,
  body.book-shell-active details,
  body.book-shell-active pre,
  body.book-shell-active code,
  body.book-shell-active th,
  body.book-shell-active td,
  body.book-family-practice nav:not(.book-chapter-nav):not(.book-page-outline-nav):not(.book-pager) a,
  body.book-family-practice .chip,
  body.book-family-practice .toolbar,
  body.book-family-practice input,
  body.book-family-practice select,
  body.book-family-practice textarea,
  body.book-family-practice .why {
    background: #ffffff !important;
    color: #111111 !important;
    box-shadow: none !important;
  }

  body.book-family-practice input,
  body.book-family-practice select,
  body.book-family-practice textarea {
    border-color: #555555 !important;
  }

  body.book-family-practice input::placeholder,
  body.book-family-practice textarea::placeholder {
    color: #444444 !important;
    opacity: 1;
  }

  body.book-shell-active h1,
  body.book-shell-active h2,
  body.book-shell-active h3,
  body.book-shell-active h4,
  body.book-shell-active h5,
  body.book-shell-active h6,
  body.book-shell-active summary,
  body.book-shell-active .answer,
  body.book-shell-active .ans,
  body.book-shell-active .why {
    color: #111111 !important;
  }

  body.book-shell-active .button,
  body.book-shell-active .qa-chip[aria-pressed="true"] {
    border-color: #555555 !important;
    background: #ffffff !important;
    color: #111111 !important;
  }

  details:not([open]) > :not(summary),
  body.book-family-practice details .answer,
  body.book-family-npu-practice details.qa .ans,
  body.book-family-npu-practice .qa.mcq .ans > *:not(.mcq-hint) {
    display: block !important;
  }

  details:not([open])::details-content {
    content-visibility: visible !important;
  }

  .qa.mcq .ans > *:not(.mcq-hint) {
    display: block !important;
  }

  .qa.mcq .mcq-hint {
    display: none !important;
  }
}