/* Local reading layer for Material for MkDocs. No remote fonts or assets. */
:root {
  --reading-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --reading-font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", "Noto Sans Mono CJK SC", monospace;
  --reading-measure: 900px;
  --md-text-font: var(--reading-font-sans);
  --md-code-font: var(--reading-font-mono);
  --md-text-font-family: var(--reading-font-sans);
  --md-code-font-family: var(--reading-font-mono);
}

:root,
[data-md-color-scheme="default"] {
  --reading-bg: #f8fafc;
  --reading-surface: #ffffff;
  --reading-ink: #24384c;
  --reading-muted: #526576;
  --reading-line: #d8e3eb;
  --reading-soft: #edf4f6;
  --reading-hover: #e3eff1;
  --reading-link: #126e75;
  --reading-link-hover: #094f59;
  --reading-link-line: #9abec3;
  --reading-focus: #087d89;
  --reading-code: #f0f4f8;
  --md-default-fg-color: var(--reading-ink);
  --md-default-fg-color--light: var(--reading-muted);
  --md-default-fg-color--lighter: #788b9b;
  --md-default-bg-color: var(--reading-bg);
  --md-typeset-color: var(--reading-ink);
  --md-typeset-a-color: var(--reading-link);
  --md-accent-fg-color: var(--reading-link);
  --md-accent-fg-color--transparent: #126e7514;
  --md-code-bg-color: var(--reading-code);
  --md-code-fg-color: var(--reading-ink);
  --md-footer-bg-color: var(--reading-surface);
  --md-footer-bg-color--dark: var(--reading-bg);
  --md-footer-fg-color: var(--reading-ink);
  --md-footer-fg-color--light: var(--reading-muted);
  --md-footer-fg-color--lighter: var(--reading-muted);
}

[data-md-color-scheme="slate"] {
  --reading-bg: #111d2b;
  --reading-surface: #172536;
  --reading-ink: #dce7ef;
  --reading-muted: #a5b7c8;
  --reading-line: #34485c;
  --reading-soft: #1d3041;
  --reading-hover: #243d4c;
  --reading-link: #78d6cf;
  --reading-link-hover: #a4eee6;
  --reading-link-line: #4d8e90;
  --reading-focus: #78d6cf;
  --reading-code: #152332;
  --md-default-fg-color: var(--reading-ink);
  --md-default-fg-color--light: var(--reading-muted);
  --md-default-fg-color--lighter: #8199ae;
  --md-default-bg-color: var(--reading-bg);
  --md-typeset-color: var(--reading-ink);
  --md-typeset-a-color: var(--reading-link);
  --md-accent-fg-color: var(--reading-link);
  --md-accent-fg-color--transparent: #78d6cf18;
  --md-code-bg-color: var(--reading-code);
  --md-code-fg-color: var(--reading-ink);
}

body,
input,
button,
select,
textarea {
  font-family: var(--reading-font-sans);
}

.md-grid {
  max-width: 1480px;
}

.md-content,
.md-content__inner,
.md-typeset details,
.md-typeset .highlight {
  min-width: 0;
}

.md-content__inner {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--reading-measure) + 48px);
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* Match Material's directional sidebar gutter specificity before centering. */
[dir] .md-sidebar:not([hidden]) ~ .md-content > .md-content__inner {
  margin-left: auto;
  margin-right: auto;
}

.md-typeset {
  font-size: 17px;
  line-height: 1.8;
  font-weight: 400;
  overflow-wrap: break-word;
}

.md-typeset p {
  margin: 0 0 1.15em;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  color: var(--reading-ink);
  font-family: var(--reading-font-sans);
  font-style: normal;
  font-weight: 650;
  scroll-margin-top: 5rem;
  overflow-wrap: break-word;
}

.md-typeset h1 {
  margin: 0 0 1em;
  font-size: 1.95em;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.md-typeset h2 {
  margin: 2.3em 0 1em;
  padding-bottom: 0.35em;
  border-bottom: 1px solid var(--reading-line);
  font-size: 1.43em;
  line-height: 1.5;
}

.md-typeset h3 {
  margin: 2em 0 0.9em;
  font-size: 1.17em;
  line-height: 1.6;
}

/* Question numbers already carry sequence; a quiet rule marks each new task. */
.md-typeset h3[id^="q"] {
  margin-top: 2.6em;
  padding-top: 1.25em;
  border-top: 1px solid var(--reading-line);
}

.md-typeset h4 {
  font-size: 1em;
  line-height: 1.6;
}

.md-typeset strong {
  font-weight: 650;
}

.md-typeset em {
  font-style: normal;
}

.md-typeset a:not(.md-button):not(.headerlink) {
  color: var(--reading-link);
  text-decoration: underline;
  text-decoration-color: var(--reading-link-line);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  overflow-wrap: anywhere;
}

.md-typeset a:not(.md-button):hover {
  color: var(--reading-link-hover);
  text-decoration-color: currentColor;
}

.md-typeset ul,
.md-typeset ol {
  margin-top: 0.65em;
  margin-bottom: 1.2em;
}

.md-typeset li {
  margin-bottom: 0.5em;
}

.md-typeset li > p {
  margin-bottom: 0.55em;
}

.md-typeset blockquote {
  margin-inline: 0;
  padding-inline-start: 1em;
  border-inline-start: 3px solid var(--reading-line);
  color: var(--reading-muted);
}

.md-typeset hr {
  margin: 2em 0;
  border-color: var(--reading-line);
}

.md-typeset img,
.md-typeset video,
.md-typeset svg {
  max-width: 100%;
}

/* Keep long tables inside their own horizontal viewport. */
.md-typeset__scrollwrap {
  max-width: 100%;
  margin: 1.35em 0;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
}

.md-typeset__table {
  display: block;
  max-width: 100%;
  padding: 0;
  margin: 0;
}

.md-typeset details .md-typeset__scrollwrap {
  margin: 1.2em 0;
}

.md-typeset details .md-typeset__table {
  padding: 0;
}

.md-typeset table:not([class]) {
  width: 100%;
  margin: 0;
  border: 1px solid var(--reading-line);
  border-radius: 5px;
  background: var(--reading-surface);
  box-shadow: none;
  font-size: 0.88em;
  line-height: 1.7;
}

.md-typeset table:not([class]) th,
.md-typeset table:not([class]) td {
  padding: 0.75em 0.9em;
  border-color: var(--reading-line);
  vertical-align: top;
}

.md-typeset table:not([class]) th {
  background: var(--reading-soft);
  color: var(--reading-ink);
  font-weight: 650;
  white-space: nowrap;
}

.md-typeset table:not([class]) td {
  min-width: 8em;
}

.md-typeset > table:not([class]),
.md-typeset details > table:not([class]) {
  display: block;
  max-width: 100%;
  overflow-x: auto;
}

/* Inline code may wrap; executable blocks preserve whitespace and scroll. */
.md-typeset code,
.md-typeset pre,
.md-typeset kbd {
  font-family: var(--reading-font-mono);
  font-style: normal;
}

.md-typeset :not(pre) > code {
  padding: 0.12em 0.32em;
  border: 1px solid var(--reading-line);
  border-radius: 4px;
  font-size: 0.85em;
  white-space: normal;
  overflow-wrap: anywhere;
}

.md-typeset pre {
  max-width: 100%;
}

.md-typeset > pre {
  margin: 1.2em 0;
}

.md-typeset pre > code {
  display: block;
  overflow-x: auto;
  font-size: 0.86em;
  line-height: 1.65;
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
}

.md-typeset .highlight {
  max-width: 100%;
  margin: 1.2em 0;
  border: 1px solid var(--reading-line);
  border-radius: 5px;
}

/* Native details keeps the browser/Material keyboard and open-state behavior. */
.md-typeset details {
  margin: 1.3em 0 1.6em;
  padding: 0 1em 0.15em;
  border: 1px solid var(--reading-line);
  border-inline-start: 3px solid var(--reading-link);
  border-radius: 5px;
  background: var(--reading-surface);
  color: var(--reading-ink);
  box-shadow: none;
  font-size: 1em;
  line-height: inherit;
}

.md-typeset details:not([open]) {
  padding-bottom: 0;
  box-shadow: none;
}

.md-typeset details:focus-within {
  box-shadow: none;
}

[dir] .md-typeset details > summary {
  box-sizing: border-box;
  min-height: 48px;
  margin: 0 -1em;
  padding: 0.8em 2.4em 0.8em 1em;
  border-radius: 4px;
  background: var(--reading-soft);
  color: var(--reading-ink);
  font-size: 1em;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
}

.md-typeset details > summary::before {
  display: none;
}

[dir] .md-typeset details > summary::after {
  top: 1em;
  inset-inline-end: 0.8em;
  color: var(--reading-link);
}

.md-typeset details > summary:hover {
  background: var(--reading-hover);
}

.md-typeset details[open] > summary {
  margin-bottom: 1.05em;
  border-bottom: 1px solid var(--reading-line);
  border-radius: 4px 4px 0 0;
}

.md-typeset details[open] > :last-child {
  margin-bottom: 1em;
}

/* Header and navigation retain Material's built-in drawer and search controls. */
.md-header {
  border-bottom: 1px solid var(--reading-line);
  background: var(--reading-surface);
  color: var(--reading-ink);
  box-shadow: none;
}

.md-header__title {
  font-size: 0.88rem;
  font-weight: 600;
}

.md-tabs {
  border-bottom: 1px solid var(--reading-line);
  background: var(--reading-surface);
  color: var(--reading-muted);
}

.md-tabs__link--active,
.md-tabs__link:hover {
  color: var(--reading-link);
}

.md-search__form {
  border-radius: 5px;
  background: var(--reading-soft);
  color: var(--reading-ink);
}

/* Material's idle desktop icon assumes a colored header; ours is a light surface. */
.md-search__form .md-search__input ~ .md-search__icon {
  color: var(--reading-muted);
}

.md-search__input::placeholder {
  color: var(--reading-muted);
}

.md-sidebar .md-nav {
  font-size: 14px;
  line-height: 1.6;
}

.md-sidebar .md-nav__link {
  padding: 0.35em 0.5em;
  border-radius: 4px;
  color: var(--reading-muted);
}

.md-sidebar .md-nav__link:hover {
  background: var(--reading-soft);
  color: var(--reading-link);
}

.md-sidebar .md-nav__link--active,
.md-sidebar .md-nav__link[aria-current="page"] {
  background: var(--reading-hover);
  color: var(--reading-link);
  font-weight: 650;
}

.md-sidebar--secondary .md-nav__title {
  color: var(--reading-ink);
  font-weight: 650;
}

.md-typeset :is(a, button, summary, input, select, textarea, [tabindex]):focus-visible,
.md-header :is(a, button, input, label[tabindex]):focus-visible,
.md-tabs a:focus-visible,
.md-sidebar :is(a, button, label[tabindex]):focus-visible,
.md-search :is(a, button, input):focus-visible {
  outline: 3px solid var(--reading-focus);
  outline-offset: 3px;
}

.md-typeset details > summary:focus-visible {
  position: relative;
  z-index: 1;
  outline: 3px solid var(--reading-focus);
  outline-offset: 3px;
}

@media screen and (min-width: 76.25em) {
  .md-nav--primary .md-nav__title {
    background: transparent;
    color: var(--reading-ink);
    box-shadow: none;
  }
}

@media screen and (max-width: 76.234375em) {
  .md-sidebar--primary .md-nav {
    font-size: 15px;
  }

  .md-sidebar--primary .md-nav__link {
    min-height: 44px;
  }
}

@media screen and (max-width: 44.9375em) {
  .md-content__inner {
    padding: 0 20px 40px;
  }

  .md-typeset {
    font-size: 16px;
    line-height: 1.8;
  }

  .md-typeset table:not([class]) {
    min-width: 600px;
  }

  .md-typeset h1 {
    font-size: 1.65em;
  }

  .md-typeset h2 {
    font-size: 1.3em;
  }

  .md-typeset h3 {
    font-size: 1.12em;
  }

  .md-typeset details {
    padding-inline: 0.85em;
  }

  [dir] .md-typeset details > summary {
    margin-inline: -0.85em;
    padding-inline-start: 0.85em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}