@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;600;700&display=swap');

/*
 * Material Design 3 layer for the DocFX Modern template.
 * Color values mirror src/Md3.Avalonia/Themes/Tokens/ColorTokens.axaml.
 * The Modern template remains the base; these rules customize its Bootstrap
 * tokens and documented page structure rather than replacing its stylesheet.
 */
:root,
[data-bs-theme='light'] {
  color-scheme: light;

  --md3-primary: #6750a4;
  --md3-on-primary: #ffffff;
  --md3-primary-container: #eaddff;
  --md3-on-primary-container: #21005d;
  --md3-secondary: #625b71;
  --md3-on-secondary: #ffffff;
  --md3-secondary-container: #e8def8;
  --md3-on-secondary-container: #1d192b;
  --md3-tertiary: #7d5260;
  --md3-on-tertiary: #ffffff;
  --md3-tertiary-container: #ffd8e4;
  --md3-on-tertiary-container: #31111d;
  --md3-error: #b3261e;
  --md3-on-error: #ffffff;
  --md3-error-container: #f9dedc;
  --md3-on-error-container: #410e0b;
  --md3-surface: #fffbfe;
  --md3-surface-lowest: #ffffff;
  --md3-surface-low: #f7f2fa;
  --md3-surface-container: #f3edf7;
  --md3-surface-high: #ece6f0;
  --md3-surface-highest: #e6e0e9;
  --md3-surface-variant: #e7e0ec;
  --md3-on-surface: #1d1b20;
  --md3-on-surface-variant: #49454f;
  --md3-outline: #79747e;
  --md3-outline-variant: #cac4d0;
  --md3-inverse-surface: #322f35;
  --md3-inverse-on-surface: #f5eff7;
  --md3-inverse-primary: #d0bcff;

  --md3-shape-xs: 4px;
  --md3-shape-sm: 8px;
  --md3-shape-md: 12px;
  --md3-shape-lg: 16px;
  --md3-shape-xl: 28px;
  --md3-shape-full: 999px;
  --md3-elevation-1: 0 1px 2px rgb(29 27 32 / 10%), 0 1px 3px rgb(29 27 32 / 7%);
  --md3-elevation-2: 0 2px 4px rgb(29 27 32 / 12%), 0 4px 8px rgb(29 27 32 / 8%);

  --bs-font-sans-serif: 'Roboto', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --bs-body-font-family: var(--bs-font-sans-serif);
  --bs-body-font-size: 1rem;
  --bs-body-line-height: 1.55;
  --bs-body-color: var(--md3-on-surface);
  --bs-body-color-rgb: 29, 27, 32;
  --bs-body-bg: var(--md3-surface);
  --bs-body-bg-rgb: 255, 251, 254;
  --bs-emphasis-color: var(--md3-on-surface);
  --bs-emphasis-color-rgb: 29, 27, 32;
  --bs-secondary-color: var(--md3-on-surface-variant);
  --bs-secondary-color-rgb: 73, 69, 79;
  --bs-secondary-bg: var(--md3-surface-low);
  --bs-tertiary-color: var(--md3-on-surface-variant);
  --bs-tertiary-bg: var(--md3-surface-container);
  --bs-heading-color: var(--md3-on-surface);
  --bs-primary: var(--md3-primary);
  --bs-primary-rgb: 103, 80, 164;
  --bs-primary-text-emphasis: #4f378b;
  --bs-primary-bg-subtle: var(--md3-primary-container);
  --bs-primary-border-subtle: #d0bcff;
  --bs-secondary: var(--md3-secondary);
  --bs-secondary-rgb: 98, 91, 113;
  --bs-secondary-text-emphasis: #4a4458;
  --bs-secondary-bg-subtle: var(--md3-secondary-container);
  --bs-secondary-border-subtle: #ccc2dc;
  --bs-tertiary: var(--md3-tertiary);
  --bs-tertiary-rgb: 125, 82, 96;
  --bs-tertiary-text-emphasis: #633b48;
  --bs-tertiary-bg-subtle: var(--md3-tertiary-container);
  --bs-tertiary-border-subtle: #efb8c8;
  --bs-danger: var(--md3-error);
  --bs-danger-rgb: 179, 38, 30;
  --bs-danger-text-emphasis: #8c1d18;
  --bs-danger-bg-subtle: var(--md3-error-container);
  --bs-danger-border-subtle: #f2b8b5;
  --bs-link-color: var(--md3-primary);
  --bs-link-color-rgb: 103, 80, 164;
  --bs-link-hover-color: #4f378b;
  --bs-link-hover-color-rgb: 79, 55, 139;
  --bs-border-color: var(--md3-outline-variant);
  --bs-border-color-translucent: rgb(121 116 126 / 22%);
  --bs-focus-ring-color: rgb(103 80 164 / 28%);
  --bs-highlight-color: var(--md3-on-primary-container);
  --bs-highlight-bg: var(--md3-primary-container);
  --bs-border-radius: var(--md3-shape-md);
  --bs-border-radius-sm: var(--md3-shape-sm);
  --bs-border-radius-lg: var(--md3-shape-lg);
  --bs-border-radius-xl: var(--md3-shape-xl);
  --bs-border-radius-xxl: 32px;
  --border-radius-button: var(--md3-shape-full);
}

[data-bs-theme='dark'] {
  color-scheme: dark;

  --md3-primary: #d0bcff;
  --md3-on-primary: #381e72;
  --md3-primary-container: #4f378b;
  --md3-on-primary-container: #eaddff;
  --md3-secondary: #ccc2dc;
  --md3-on-secondary: #332d41;
  --md3-secondary-container: #4a4458;
  --md3-on-secondary-container: #e8def8;
  --md3-tertiary: #efb8c8;
  --md3-on-tertiary: #492532;
  --md3-tertiary-container: #633b48;
  --md3-on-tertiary-container: #ffd8e4;
  --md3-error: #f2b8b5;
  --md3-on-error: #601410;
  --md3-error-container: #8c1d18;
  --md3-on-error-container: #f9dedc;
  --md3-surface: #141218;
  --md3-surface-lowest: #0f0d13;
  --md3-surface-low: #1d1b20;
  --md3-surface-container: #211f26;
  --md3-surface-high: #2b2930;
  --md3-surface-highest: #36343b;
  --md3-surface-variant: #49454f;
  --md3-on-surface: #e6e0e9;
  --md3-on-surface-variant: #cac4d0;
  --md3-outline: #938f99;
  --md3-outline-variant: #49454f;
  --md3-inverse-surface: #e6e0e9;
  --md3-inverse-on-surface: #322f35;
  --md3-inverse-primary: #6750a4;

  --md3-elevation-1: 0 1px 2px rgb(0 0 0 / 24%), 0 1px 3px rgb(0 0 0 / 18%);
  --md3-elevation-2: 0 2px 4px rgb(0 0 0 / 30%), 0 4px 8px rgb(0 0 0 / 22%);

  --bs-body-color: var(--md3-on-surface);
  --bs-body-color-rgb: 230, 224, 233;
  --bs-body-bg: var(--md3-surface);
  --bs-body-bg-rgb: 20, 18, 24;
  --bs-emphasis-color: #f5eff7;
  --bs-emphasis-color-rgb: 245, 239, 247;
  --bs-secondary-color: var(--md3-on-surface-variant);
  --bs-secondary-color-rgb: 202, 196, 208;
  --bs-secondary-bg: var(--md3-surface-low);
  --bs-tertiary-color: var(--md3-on-surface-variant);
  --bs-tertiary-bg: var(--md3-surface-container);
  --bs-heading-color: var(--md3-on-surface);
  --bs-primary: var(--md3-primary);
  --bs-primary-rgb: 208, 188, 255;
  --bs-primary-text-emphasis: #eaddff;
  --bs-primary-bg-subtle: var(--md3-primary-container);
  --bs-primary-border-subtle: #705b9f;
  --bs-secondary: var(--md3-secondary);
  --bs-secondary-rgb: 204, 194, 220;
  --bs-secondary-text-emphasis: #e8def8;
  --bs-secondary-bg-subtle: var(--md3-secondary-container);
  --bs-secondary-border-subtle: #655c74;
  --bs-tertiary: var(--md3-tertiary);
  --bs-tertiary-rgb: 239, 184, 200;
  --bs-tertiary-text-emphasis: #ffd8e4;
  --bs-tertiary-bg-subtle: var(--md3-tertiary-container);
  --bs-tertiary-border-subtle: #815363;
  --bs-danger: var(--md3-error);
  --bs-danger-rgb: 242, 184, 181;
  --bs-danger-text-emphasis: #f9dedc;
  --bs-danger-bg-subtle: var(--md3-error-container);
  --bs-danger-border-subtle: #a94b45;
  --bs-link-color: var(--md3-primary);
  --bs-link-color-rgb: 208, 188, 255;
  --bs-link-hover-color: #eaddff;
  --bs-link-hover-color-rgb: 234, 221, 255;
  --bs-border-color: var(--md3-outline-variant);
  --bs-border-color-translucent: rgb(202 196 208 / 18%);
  --bs-focus-ring-color: rgb(208 188 255 / 30%);
  --bs-highlight-color: var(--md3-on-primary-container);
  --bs-highlight-bg: var(--md3-primary-container);
}

html {
  scroll-padding-top: 5rem;
}

body {
  color: var(--md3-on-surface);
  background: var(--md3-surface);
  font-family: var(--bs-body-font-family);
  line-height: 1.6;
  letter-spacing: 0.005em;
}

::selection {
  color: var(--md3-on-primary-container);
  background: var(--md3-primary-container);
}

:focus-visible {
  outline: 3px solid var(--bs-focus-ring-color);
  outline-offset: 2px;
}

/* Top app bar */
body > header {
  z-index: 1030;
  background: var(--md3-surface-container-low) !important;
  border-color: var(--md3-outline-variant) !important;
  box-shadow: var(--md3-elevation-1);
}

body > header .navbar,
body > header .navbar > .container-xxl {
  min-height: 64px;
}

body > header .navbar > .container-xxl {
  min-width: 0;
}

.navbar-brand {
  display: block;
  min-width: 0;
  max-width: min(45vw, 20rem);
  flex: 0 1 auto;
  overflow: hidden;
  color: var(--md3-on-surface);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body > header .navbar .navbar-collapse,
body > header .navbar #navbar {
  min-width: 0;
}

.navbar-brand:hover {
  color: var(--md3-primary);
}

.navbar-brand > img#logo {
  width: 2.35rem;
  height: 2.35rem;
  margin-right: 0.7rem;
  border-radius: 12px;
  object-fit: cover;
  vertical-align: middle;
  box-shadow: none;
}

.navbar-nav > li > a,
.navbar .nav-link {
  padding: 0.55rem 0.9rem;
  border-radius: var(--md3-shape-full);
  color: var(--md3-on-surface-variant);
  font-weight: 500;
  transition: background-color 160ms ease, color 160ms ease;
}

.navbar-nav > li > a:hover,
.navbar .nav-link:hover,
.navbar .nav-link:focus-visible {
  color: var(--md3-on-primary-container);
  background: var(--md3-primary-container);
}

.navbar .nav-link.active,
.navbar .nav-link.show {
  color: var(--md3-on-primary-container);
  background: var(--md3-primary-container);
}

#navbar form.search {
  margin-inline: 0.75rem;
}

#navbar form.search > i {
  color: var(--md3-on-surface-variant);
}

#navbar form.search > input.form-control {
  min-width: min(25vw, 21rem);
  height: 42px;
  color: var(--md3-on-surface);
  background: var(--md3-surface-high);
  border: 1px solid transparent;
  border-radius: var(--md3-shape-full);
  box-shadow: none;
  transition: background-color 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

#navbar form.search > input.form-control:focus {
  background: var(--md3-surface-lowest);
  border-color: var(--md3-primary);
  box-shadow: 0 0 0 3px var(--bs-focus-ring-color);
}

#navbar form.icons {
  gap: 0.25rem;
  align-items: center;
}

#navbar form.icons .btn,
body > header .navbar > .container-xxl > button.btn {
  display: inline-grid;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  color: var(--md3-on-surface-variant);
  border-radius: var(--md3-shape-full);
  transition: background-color 160ms ease, color 160ms ease;
}

#navbar form.icons .btn:hover,
body > header .navbar > .container-xxl > button.btn:hover {
  color: var(--md3-on-primary-container);
  background: var(--md3-primary-container);
}

.dropdown-menu {
  padding: 0.45rem;
  color: var(--md3-on-surface);
  background: var(--md3-surface-high);
  border: 1px solid var(--md3-outline-variant);
  border-radius: 16px;
  box-shadow: var(--md3-elevation-2);
}

.dropdown-item {
  padding: 0.6rem 0.85rem;
  border-radius: 10px;
  color: var(--md3-on-surface);
}

.dropdown-item:hover,
.dropdown-item:focus {
  color: var(--md3-on-primary-container);
  background: var(--md3-primary-container);
}

/* Navigation rail and in-page table of contents */
.toc-offcanvas .offcanvas-md,
.toc-offcanvas .offcanvas-body {
  color: var(--md3-on-surface);
  background: var(--md3-surface-low);
}

.toc-offcanvas .offcanvas-md {
  border: 1px solid var(--md3-outline-variant);
  border-radius: 22px;
}

.toc-offcanvas .offcanvas-body {
  padding: 1rem 0.8rem;
  border-radius: inherit;
}

.toc-offcanvas .offcanvas-header {
  padding: 1rem 1.1rem 0.25rem;
}

.toc-offcanvas .offcanvas-title {
  color: var(--md3-on-surface);
  font-size: 1.1rem;
  font-weight: 600;
}

.toc form.filter {
  margin: 0.1rem 0.35rem 0.9rem;
}

.toc form.filter > i {
  color: var(--md3-on-surface-variant);
}

.toc form.filter > input.form-control {
  min-height: 40px;
  color: var(--md3-on-surface);
  background: var(--md3-surface-high);
  border: 1px solid transparent;
  border-radius: var(--md3-shape-full);
  box-shadow: none;
}

.toc form.filter > input.form-control:focus {
  background: var(--md3-surface-lowest);
  border-color: var(--md3-primary);
  box-shadow: 0 0 0 3px var(--bs-focus-ring-color);
}

.toc ul {
  font-size: 0.875rem;
}

.toc li {
  margin: 0.15rem 0;
  border-radius: 16px;
}

.toc li > a,
.toc li > span.name-only {
  display: block;
  padding: 0.48rem 0.75rem;
  color: var(--md3-on-surface-variant);
  border-radius: var(--md3-shape-full);
  text-decoration: none;
  transition: background-color 150ms ease, color 150ms ease;
}

.toc li > a:hover,
.toc li > a:focus-visible {
  color: var(--md3-on-surface);
  background: var(--md3-surface-high);
}

.toc li.active > a {
  color: var(--md3-on-primary-container);
  background: var(--md3-primary-container);
  font-weight: 600;
}

.toc li .expand-stub::before {
  color: var(--md3-on-surface-variant);
}

.toc > .no-result {
  padding: 0.5rem 0.75rem;
  color: var(--md3-on-surface-variant);
}

.affix {
  padding-left: 1rem;
  border-left: 1px solid var(--md3-outline-variant);
}

.affix h5 {
  padding-bottom: 0.65rem;
  color: var(--md3-primary);
  border-bottom-color: var(--md3-outline-variant) !important;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.affix ul li a {
  display: block;
  padding: 0.25rem 0.5rem;
  color: var(--md3-on-surface-variant);
  border-radius: var(--md3-shape-sm);
  text-decoration: none;
}

.affix ul li a:hover,
.affix ul li a.link-body-emphasis {
  color: var(--md3-primary);
}

/* Reading surface and Material typography */
body > main.container-xxl {
  padding-top: 1.5rem;
}

.content {
  min-width: 0;
}

.content > article {
  width: 100%;
  max-width: 960px;
  margin-inline: auto;
  color: var(--md3-on-surface);
}

.actionbar {
  min-height: 2.5rem;
  align-items: center !important;
  gap: 0.4rem;
}

.actionbar > button {
  color: var(--md3-on-surface-variant);
  border-radius: var(--md3-shape-full);
}

.actionbar > button:hover {
  color: var(--md3-on-primary-container);
  background: var(--md3-primary-container);
}

.breadcrumb {
  margin-bottom: 0;
  color: var(--md3-on-surface-variant);
  font-size: 0.875rem;
}

.breadcrumb a {
  color: var(--md3-on-surface-variant);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--md3-primary);
}

article h1,
article h2,
article h3,
article h4,
article h5,
article h6 {
  color: var(--md3-on-surface);
  letter-spacing: -0.015em;
  scroll-margin-top: 5rem;
}

article h1 {
  margin: 0.35rem 0 1.25rem;
  font-size: clamp(2rem, 3.4vw, 2.5rem);
  font-weight: 400;
  line-height: 1.2;
}

article h2 {
  margin: 2.2rem 0 0.85rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--md3-outline-variant);
  font-size: 1.75rem;
  font-weight: 400;
  line-height: 1.35;
}

article h3 {
  margin: 1.8rem 0 0.65rem;
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.4;
}

article h4 {
  margin: 1.5rem 0 0.55rem;
  padding: 0;
  border: 0;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.45;
}

article h5 {
  font-size: 1rem;
  font-weight: 600;
}

article p,
article li {
  line-height: 1.7;
}

article p {
  margin-block: 0.8rem;
}

article a:not(.md3-resource-card):not(.md3-button) {
  color: var(--md3-primary);
  text-underline-offset: 0.16em;
  text-decoration-thickness: 0.06em;
}

article a:not(.md3-resource-card):not(.md3-button):hover {
  color: var(--bs-link-hover-color);
}

article hr {
  margin: 2rem 0;
  border-color: var(--md3-outline-variant);
  opacity: 1;
}

/* Bootstrap controls tuned to Material 3 filled, tonal and outlined states */
.btn {
  min-height: 40px;
  padding: 0.5rem 1.2rem;
  border-radius: var(--md3-shape-full);
  font-weight: 500;
  transition: background-color 150ms ease, border-color 150ms ease, box-shadow 150ms ease, color 150ms ease, transform 150ms ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  --bs-btn-color: var(--md3-on-primary);
  --bs-btn-bg: var(--md3-primary);
  --bs-btn-border-color: var(--md3-primary);
  --bs-btn-hover-color: var(--md3-on-primary);
  --bs-btn-hover-bg: color-mix(in srgb, var(--md3-primary) 88%, var(--md3-on-surface));
  --bs-btn-hover-border-color: color-mix(in srgb, var(--md3-primary) 88%, var(--md3-on-surface));
  --bs-btn-active-color: var(--md3-on-primary);
  --bs-btn-active-bg: var(--md3-primary);
  --bs-btn-active-border-color: var(--md3-primary);
}

.btn-secondary {
  --bs-btn-color: var(--md3-on-secondary-container);
  --bs-btn-bg: var(--md3-secondary-container);
  --bs-btn-border-color: var(--md3-secondary-container);
  --bs-btn-hover-color: var(--md3-on-secondary-container);
  --bs-btn-hover-bg: color-mix(in srgb, var(--md3-secondary-container) 88%, var(--md3-secondary));
  --bs-btn-hover-border-color: color-mix(in srgb, var(--md3-secondary-container) 88%, var(--md3-secondary));
}

.btn-outline-primary {
  --bs-btn-color: var(--md3-primary);
  --bs-btn-border-color: var(--md3-outline);
  --bs-btn-hover-color: var(--md3-on-primary);
  --bs-btn-hover-bg: var(--md3-primary);
  --bs-btn-hover-border-color: var(--md3-primary);
}

.form-control,
.form-select {
  min-height: 40px;
  color: var(--md3-on-surface);
  background-color: var(--md3-surface-high);
  border-color: var(--md3-outline-variant);
  border-radius: var(--md3-shape-sm);
}

.form-control:focus,
.form-select:focus {
  color: var(--md3-on-surface);
  background-color: var(--md3-surface-lowest);
  border-color: var(--md3-primary);
  box-shadow: 0 0 0 3px var(--bs-focus-ring-color);
}

/* API tables, code and callouts */
article table {
  width: 100%;
  margin-block: 1rem 1.5rem;
  overflow: hidden;
  color: var(--md3-on-surface);
  background: var(--md3-surface-lowest);
  border: 1px solid var(--md3-outline-variant);
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--md3-shape-md);
}

article table th,
article table td {
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--md3-outline-variant);
  vertical-align: top;
}

article table th {
  color: var(--md3-on-surface);
  background: var(--md3-surface-container);
  font-weight: 600;
  text-align: left;
}

article table tr:last-child > th,
article table tr:last-child > td {
  border-bottom: 0;
}

article table tbody tr:hover > td {
  background: var(--md3-surface-low);
}

article :not(pre) > code {
  margin: 0 0.1rem;
  padding: 0.15rem 0.4rem;
  color: var(--md3-primary);
  background: var(--md3-surface-high);
  border: 0;
  border-radius: var(--md3-shape-xs);
  box-shadow: none;
  font-size: 0.9em;
}

article img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.25rem 0 1.5rem;
  border: 1px solid var(--md3-outline-variant);
  border-radius: var(--md3-shape-md);
  background: var(--md3-surface-lowest);
  box-shadow: var(--md3-elevation-1);
}

article pre {
  margin: 1rem 0 1.5rem;
  padding: 1rem 1.15rem;
  overflow: auto;
  color: var(--md3-on-surface);
  background: var(--md3-surface-low);
  border: 1px solid var(--md3-outline-variant);
  border-radius: var(--md3-shape-md);
  box-shadow: none;
}

article pre > code,
article pre code.hljs,
article .hljs {
  color: var(--md3-on-surface);
  background: transparent;
  box-shadow: none;
}

article pre > .code-action {
  display: inline-grid;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  place-items: center;
  color: var(--md3-on-surface-variant);
  background: var(--md3-surface-high);
  border: 1px solid var(--md3-outline-variant);
  border-radius: var(--md3-shape-full);
}

/* Modern reveals code actions with `pre:hover > .code-action { display: block; }`.
   Keep the grid display when that rule activates so the copy glyph stays centered. */
article pre:hover > .code-action,
article pre > .code-action:focus-visible {
  display: inline-grid;
}

blockquote {
  margin: 1.25rem 0;
  padding: 0.8rem 1rem;
  color: var(--md3-on-surface-variant);
  background: var(--md3-surface-low);
  border: 0;
  border-left: 4px solid var(--md3-primary);
  border-radius: 0 var(--md3-shape-sm) var(--md3-shape-sm) 0;
}

.alert {
  margin-block: 1rem;
  padding: 0;
  overflow: hidden;
  color: var(--md3-on-surface);
  background: var(--md3-surface-low);
  border: 1px solid var(--md3-outline-variant);
  border-radius: var(--md3-shape-md);
  box-shadow: none;
}

.alert > h5 {
  margin: 0;
  padding: 0.75rem 1rem;
  color: var(--md3-on-surface);
  background: var(--md3-surface-container);
  border-radius: 0;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: none;
}

.alert > p,
.alert > ul {
  padding: 0.1rem 1rem 0.75rem;
}

.alert-info {
  color: var(--md3-on-primary-container);
  background: var(--md3-primary-container);
}

.alert-info > h5 {
  color: var(--md3-on-primary-container);
  background: color-mix(in srgb, var(--md3-primary-container) 82%, var(--md3-primary));
}

.alert-warning {
  color: var(--md3-on-tertiary-container);
  background: var(--md3-tertiary-container);
}

.alert-warning > h5 {
  color: var(--md3-on-tertiary-container);
  background: color-mix(in srgb, var(--md3-tertiary-container) 82%, var(--md3-tertiary));
}

.alert-danger {
  color: var(--md3-on-error-container);
  background: var(--md3-error-container);
}

.alert-danger > h5 {
  color: var(--md3-on-error-container);
  background: color-mix(in srgb, var(--md3-error-container) 82%, var(--md3-error));
}

.alert-success {
  color: var(--md3-on-secondary-container);
  background: var(--md3-secondary-container);
}

/* Footer and search results */
body > footer {
  min-height: 60px;
  height: auto;
  color: var(--md3-on-surface-variant) !important;
  background: var(--md3-surface-low);
  border-color: var(--md3-outline-variant) !important;
}

body > footer .container-xxl {
  min-width: 0;
  overflow-wrap: anywhere;
}

body > footer a {
  color: var(--md3-primary);
}

#search-results .sr-item {
  margin-bottom: 1rem;
  padding: 1rem 1.2rem;
  background: var(--md3-surface-low);
  border: 1px solid var(--md3-outline-variant);
  border-radius: var(--md3-shape-md);
}

#search-results .sr-item > .item-title {
  color: var(--md3-primary);
  font-size: 1.25rem;
  font-weight: 500;
}

#search-results .sr-item > .item-href {
  color: var(--md3-on-surface-variant);
}

/* Material 3 landing-page hero and resource cards */
.md3-hero {
  position: relative;
  display: flex;
  min-height: 290px;
  align-items: center;
  margin: 0.5rem 0 1.75rem;
  padding: clamp(1.5rem, 4vw, 3.25rem);
  overflow: hidden;
  color: var(--md3-on-primary-container);
  background: linear-gradient(125deg, var(--md3-primary-container), var(--md3-secondary-container));
  border-radius: var(--md3-shape-xl);
  isolation: isolate;
}

.md3-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 42rem;
  padding-right: 10rem;
}

.md3-hero-label {
  margin: 0 0 0.6rem;
  color: var(--md3-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.md3-hero h1 {
  margin: 0 0 0.85rem;
  color: var(--md3-on-primary-container);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.md3-hero-description {
  max-width: 42rem;
  margin: 0 0 1.35rem;
  color: var(--md3-on-primary-container);
  font-size: 1.05rem;
  line-height: 1.65;
}

.md3-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.md3-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.2rem;
  border: 1px solid transparent;
  border-radius: var(--md3-shape-full);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none !important;
  transition: background-color 150ms ease, color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.md3-button:hover {
  transform: translateY(-1px);
}

.md3-button-filled {
  color: var(--md3-on-primary);
  background: var(--md3-primary);
}

.md3-button-filled:hover {
  color: var(--md3-on-primary);
  box-shadow: var(--md3-elevation-1);
}

.md3-button-tonal {
  color: var(--md3-on-secondary-container);
  background: var(--md3-secondary-container);
}

.md3-button-tonal:hover {
  color: var(--md3-on-secondary-container);
  box-shadow: var(--md3-elevation-1);
}

.md3-button-outlined {
  color: var(--md3-primary);
  background: transparent;
  border-color: var(--md3-outline);
}

.md3-button-outlined:hover {
  color: var(--md3-primary);
  background: var(--md3-primary-container);
}

.md3-hero-art {
  position: absolute;
  z-index: 0;
  inset-block: 0;
  right: 4%;
  width: 245px;
  pointer-events: none;
}

.md3-hero-art::before,
.md3-hero-art::after,
.md3-hero-shape {
  position: absolute;
  display: block;
  content: '';
}

.md3-hero-art::before {
  top: 50%;
  left: 50%;
  width: 166px;
  height: 166px;
  background: var(--md3-primary);
  border-radius: 50%;
  opacity: 0.86;
  transform: translate(-50%, -50%);
}

.md3-hero-art::after {
  top: 54%;
  left: 61%;
  width: 170px;
  height: 92px;
  background: var(--md3-tertiary-container);
  border-radius: var(--md3-shape-xl);
  transform: translate(-50%, -50%) rotate(-28deg);
}

.md3-hero-shape--base {
  bottom: 19%;
  left: 2%;
  width: 190px;
  height: 60px;
  background: var(--md3-secondary);
  border-radius: 24px;
  opacity: 0.9;
  transform: rotate(24deg);
}

.md3-hero-shape--accent {
  top: 13%;
  right: 0;
  width: 62px;
  height: 62px;
  background: var(--md3-tertiary);
  border-radius: 20px;
  transform: rotate(18deg);
}

.md3-resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.md3-resource-card {
  display: flex;
  min-height: 220px;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.25rem;
  color: var(--md3-on-surface);
  background: var(--md3-surface-low);
  border: 1px solid var(--md3-outline-variant);
  border-radius: 20px;
  text-decoration: none !important;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.md3-resource-card:hover {
  color: var(--md3-on-surface);
  background: var(--md3-surface-container);
  border-color: var(--md3-primary);
  box-shadow: var(--md3-elevation-1);
  transform: translateY(-2px);
}

.md3-resource-icon {
  display: grid;
  width: 42px;
  height: 42px;
  margin-bottom: 1rem;
  place-items: center;
  color: var(--md3-on-secondary-container);
  background: var(--md3-secondary-container);
  border-radius: 13px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.md3-resource-card h2 {
  margin: 0 0 0.45rem;
  padding: 0;
  color: var(--md3-on-surface);
  border: 0;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
}

.md3-resource-card p {
  margin: 0 0 1rem;
  color: var(--md3-on-surface-variant);
  font-size: 0.9rem;
  line-height: 1.55;
}

.md3-resource-link {
  margin-top: auto;
  color: var(--md3-primary);
  font-size: 0.9rem;
  font-weight: 600;
}

.md3-page-note {
  color: var(--md3-on-surface-variant);
  font-size: 0.9rem;
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes md3-home-enter {
    from {
      opacity: 0;
      transform: translateY(24px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes md3-home-card-enter {
    from {
      opacity: 0;
      translate: 0 20px;
      scale: 0.98;
    }
    to {
      opacity: 1;
      translate: 0 0;
      scale: 1;
    }
  }

  @keyframes md3-home-float {
    0%, 100% {
      translate: 0 0;
      scale: 1;
    }
    50% {
      translate: 0 -14px;
      scale: 1.04;
    }
  }

  .md3-hero-copy {
    animation: md3-home-enter 720ms cubic-bezier(0.2, 0, 0, 1) both;
  }

  .md3-resource-card {
    animation: md3-home-card-enter 620ms cubic-bezier(0.2, 0, 0, 1) both;
  }

  .md3-resource-card:nth-child(1) { animation-delay: 100ms; }
  .md3-resource-card:nth-child(2) { animation-delay: 190ms; }
  .md3-resource-card:nth-child(3) { animation-delay: 280ms; }
  .md3-resource-card:nth-child(4) { animation-delay: 370ms; }
  .md3-resource-card:nth-child(5) { animation-delay: 460ms; }

  .md3-hero-shape--accent {
    animation: md3-home-float 5.2s ease-in-out infinite;
  }

  .md3-hero-shape--base {
    animation: md3-home-float 7.4s ease-in-out infinite reverse;
  }
}

@media (max-width: 900px) {
  .md3-hero-art {
    right: -3.5rem;
    opacity: 0.34;
  }
}

@media (max-width: 767.98px) {
  body > header .navbar .navbar-brand {
    max-width: calc(100vw - 7.5rem);
  }
}

@media (max-width: 680px) {
  body > main.container-xxl {
    padding-top: 1rem;
  }

  .md3-hero {
    min-height: 0;
    padding: 1.5rem;
  }

  .md3-hero-art {
    display: none;
  }

  .md3-hero-copy {
    padding-right: 0;
  }

  .md3-hero-actions {
    align-items: stretch;
  }

  .md3-button {
    flex: 1 1 auto;
  }

  .content > article {
    padding-inline: 0.15rem;
  }

  article table {
    display: block;
    overflow-x: auto;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}