:root {
  --site-blue: #518fc1;
  --site-blue-dark: #2f6f9f;
  --site-blue-soft: rgba(81, 143, 193, 0.12);
  --site-ink: #202b38;
  --site-muted: #637180;
  --site-link: #2f6f9f;
  --site-line: #e7edf3;
  --site-surface: #ffffff;
  --site-surface-soft: #f8fbfe;
  --site-radius: 10px;

  --md-primary-fg-color: var(--site-blue);
  --md-primary-fg-color--light: #74acd1;
  --md-primary-fg-color--dark: var(--site-blue-dark);
  --md-accent-fg-color: #3f51b5;
  --md-default-bg-color: var(--site-surface);
  --md-default-fg-color: var(--site-ink);
  --md-default-fg-color--light: var(--site-muted);
  --md-code-bg-color: #f2f7fb;
}

body[data-md-color-scheme="default"] {
  --md-default-bg-color: var(--site-surface);
  --md-default-fg-color: var(--site-ink);
  --md-default-fg-color--light: var(--site-muted);
  --md-code-bg-color: #f2f7fb;
}

body[data-md-color-scheme="slate"] {
  --site-blue: #79b6df;
  --site-blue-dark: #b7ddf4;
  --site-blue-soft: rgba(121, 182, 223, 0.18);
  --site-ink: #e7f0f7;
  --site-muted: #b7c8d7;
  --site-link: #a7d0e8;
  --site-line: #30475d;
  --site-surface: #172536;
  --site-surface-soft: #1d3044;
  --md-primary-fg-color: #79b6df;
  --md-primary-fg-color--light: #a7d0e8;
  --md-primary-fg-color--dark: #79b6df;
  --md-accent-fg-color: #a9b5ff;
  --md-default-bg-color: var(--site-surface);
  --md-default-fg-color: var(--site-ink);
  --md-default-fg-color--light: var(--site-muted);
  --md-code-bg-color: #132131;
}

body[data-md-color-scheme="slate"] .md-logo img {
  filter: brightness(0) invert(1);
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--site-ink);
}

/* The reference layout uses a quiet white header with a separate tab row. */
.md-header {
  background: var(--site-surface) !important;
  border-bottom: 1px solid var(--site-line);
  box-shadow: none;
  color: var(--site-ink);
}

.md-header .md-header__button,
.md-header .md-logo,
.md-header .md-header__topic,
.md-header .md-source,
.md-header .md-icon {
  color: var(--site-ink);
}

.md-header .md-logo {
  margin: 0.2rem 0.35rem 0.2rem 0;
}

.md-header .md-logo img,
.md-header .md-logo svg {
  height: 1.7rem;
  width: 1.7rem;
}

.md-header__title {
  font-weight: 700;
}

.md-search__form {
  background: var(--site-surface);
  border: 1px solid var(--site-line);
  border-radius: 999px;
  box-shadow: none;
}

.md-search__input,
.md-search__icon {
  color: var(--site-ink);
}

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

.md-tabs__item {
  height: 2.4rem;
}

.md-tabs__link {
  color: var(--site-muted);
  align-items: center;
  font-size: 0.8rem;
  height: 100%;
  margin-top: 0;
  opacity: 1;
  padding: 0 0.85rem;
  transition: color 160ms ease, border-color 160ms ease;
}

.md-tabs__link:hover,
.md-tabs__link:focus-visible,
.md-tabs__item--active .md-tabs__link,
.md-tabs__link--active {
  color: var(--site-ink);
  opacity: 1;
}

.md-tabs__item--active .md-tabs__link,
.md-tabs__link--active {
  border-bottom: 2px solid var(--site-ink);
  font-weight: 700;
}

.md-main {
  background: var(--site-surface);
}

.md-grid {
  max-width: 92rem;
}

.md-content__inner {
  margin-top: 0;
  padding-top: 2rem;
  padding-bottom: 4rem;
}

.md-sidebar {
  padding-top: 1.65rem;
}

.md-sidebar--primary {
  border-right: 1px solid var(--site-line);
}

.md-sidebar--secondary {
  border-left: 1px solid var(--site-line);
}

.md-nav__title {
  color: var(--site-muted);
  font-size: 0.82rem;
  font-weight: 500;
}

.md-nav__link {
  border-radius: 8px;
  color: var(--site-ink);
  margin: 2px 0;
  padding: 0.44rem 0.75rem;
  transition: background 160ms ease, color 160ms ease;
}

.md-nav__link:hover,
.md-nav__link:focus-visible {
  background: var(--site-blue-soft) !important;
  color: var(--site-blue-dark) !important;
}

.md-nav__link--active,
.md-nav__link--active:hover {
  background: var(--site-blue-soft) !important;
  border-left: 0;
  color: var(--site-blue-dark) !important;
  font-weight: 700;
  padding-left: 0.75rem;
}

.md-nav--secondary .md-nav__link--active {
  background: transparent !important;
  color: var(--site-blue-dark) !important;
}

.home-nav__section-link {
  color: var(--site-blue-dark);
  font-weight: 700;
  margin-top: 0.45rem;
}

.home-nav__children {
  border-left: 1px solid var(--site-line);
  margin-left: 0.75rem;
  padding-left: 0.4rem;
}

.home-nav__children:empty {
  display: none;
}

.md-typeset {
  color: var(--site-ink);
}

.md-typeset h1 {
  color: var(--site-ink);
  font-size: 2rem;
  font-weight: 750;
  letter-spacing: 0;
  line-height: 1.35;
  margin-bottom: 1.2rem;
}

.md-typeset h2 {
  color: var(--site-ink);
  font-size: 1.55rem;
  font-weight: 700;
  margin-top: 2.4rem;
}

.md-typeset h3 {
  color: var(--site-blue-dark);
  font-weight: 700;
}

.md-typeset p,
.md-typeset li {
  line-height: 1.85;
}

.md-typeset a {
  color: var(--site-link);
  text-decoration: none;
}

.md-typeset a:hover,
.md-typeset a:focus-visible {
  color: var(--site-blue-dark);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.home-intro {
  max-width: 52rem;
  margin: -0.2rem 0 2rem;
  padding: 0.95rem 1.15rem;
  border: 1px solid rgba(81, 143, 193, 0.2);
  border-left: 4px solid var(--site-blue);
  border-radius: var(--site-radius);
  background: var(--site-blue-soft);
}

.home-intro p {
  color: var(--site-muted);
  margin: 0;
}

.md-typeset .grid.cards {
  gap: 1rem;
}

.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards > ol > li,
.md-typeset .grid > .card {
  background: var(--site-surface);
  border: 1px solid var(--site-line);
  border-radius: 14px;
  box-shadow: 0 5px 18px rgba(46, 91, 125, 0.09);
  padding: 1rem 1.1rem;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid.cards > ol > li:hover,
.md-typeset .grid > .card:hover {
  border-color: rgba(81, 143, 193, 0.5);
  box-shadow: 0 10px 24px rgba(46, 91, 125, 0.14);
  transform: translateY(-2px);
}

.md-typeset .grid.cards > ul > li > p:first-child a,
.md-typeset .grid.cards > ol > li > p:first-child a {
  color: var(--site-blue-dark);
  font-size: 1.05rem;
  font-weight: 700;
}

/* Reading metadata follows the aqua title strip used by the reference site. */
.reading-info {
  border: 1px solid rgba(40, 190, 177, 0.42);
  border-radius: 18px;
  box-shadow: 0 5px 16px rgba(51, 146, 153, 0.1);
  margin: 1.25rem 0 2.1rem;
  overflow: hidden;
}

.reading-info__title {
  align-items: center;
  background: #b7ebe6;
  color: #173438;
  display: flex;
  gap: 0.55rem;
  padding: 0.68rem 1rem;
}

.reading-info__mark {
  color: #08b6a3;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1;
}

.reading-info__body {
  align-items: center;
  background: var(--site-surface);
  color: var(--site-ink);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.72rem 1rem;
}

.reading-info__item {
  white-space: nowrap;
}

.reading-info__item + .reading-info__item::before {
  color: var(--site-muted);
  content: "|";
  margin-right: 0.4rem;
}

.empty-state {
  background: var(--site-blue-soft);
  border: 1px dashed rgba(81, 143, 193, 0.4);
  border-radius: var(--site-radius);
  color: var(--site-muted);
  margin: 1.1rem 0 0;
  padding: 1rem 1.15rem;
}

.md-typeset table:not([class]),
.md-typeset .admonition,
.md-typeset details {
  border-radius: var(--site-radius);
}

.md-typeset table:not([class]) th {
  background: var(--site-blue-soft);
  color: var(--site-blue-dark);
}

.md-typeset pre {
  border-left: 3px solid var(--md-accent-fg-color);
  border-radius: var(--site-radius);
}

.md-footer {
  background: var(--site-surface-soft);
  border-top: 1px solid var(--site-line);
  color: var(--site-muted);
}

.md-footer-meta,
.md-footer-nav {
  background: transparent;
}

@media screen and (max-width: 768px) {
  .md-tabs__link {
    padding-inline: 0.6rem;
  }

  .md-sidebar--secondary {
    border-left: 0;
  }

  .md-typeset h1 {
    font-size: 1.75rem;
  }

  .md-typeset .grid.cards > ul,
  .md-typeset .grid.cards > ol {
    grid-template-columns: 1fr;
  }

  .reading-info__item + .reading-info__item::before {
    content: none;
  }
}