:root {
  color-scheme: light;
  --page: #f2f2f3;
  --page-translucent: rgba(242, 242, 243, 0.97);
  --surface: #ffffff;
  --surface-muted: #e8eaec;
  --ink: #20252a;
  --ink-muted: #59636d;
  --line: #9aa5af;
  --line-strong: #586570;
  --accent: #0f62a8;
  --accent-dark: #084b83;
  --accent-soft: #dbe9f5;
  --healthy: #2e9e44;
  --healthy-tint: #dff1e3;
  --attention: #c88a00;
  --attention-tint: #fff3d5;
  --danger: #b42a2a;
  --danger-tint: #f8dddd;
  --focus: #0f62a8;
  --sidebar-width: 19rem;
  --content-width: 76rem;
  --font-ui: "Barlow", "Segoe UI", system-ui, sans-serif;
  --font-condensed: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-mono: "DejaVu Sans Mono", "Cascadia Mono", Consolas, monospace;
}

/* Loosely matches the application's own Dark theme (AtomsTokens.axaml's "Dark" branch) -- this is a
   separate static file with no live channel to the running app's Appearance setting, so it follows
   the OS/browser's own light-dark preference instead, not required to be pixel-identical. */
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #1a1b1c;
    --page-translucent: rgba(26, 27, 28, 0.97);
    --surface: #242526;
    --surface-muted: #2c2d2e;
    --ink: #e7e7e8;
    --ink-muted: #a3a4a5;
    --line: #585859;
    --line-strong: #6c6d6e;
    --accent: #49a5f3;
    --accent-dark: #82c2f7;
    --accent-soft: #073c69;
    --healthy: #5ccc72;
    --healthy-tint: #184e23;
    --attention: #ffc033;
    --attention-tint: #664600;
    --danger: #da4e4e;
    --danger-tint: #541212;
    --focus: #49a5f3;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 1rem/1.62 var(--font-ui);
}

a {
  color: var(--accent-dark);
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--accent);
}

button,
input {
  font: inherit;
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.app-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  grid-template-columns: minmax(13rem, var(--sidebar-width)) minmax(18rem, 42rem) auto;
  gap: 1rem;
  align-items: center;
  min-height: 4.6rem;
  padding: 0.65rem clamp(0.75rem, 2vw, 1.5rem);
  border-bottom: 1px solid var(--line-strong);
  background: var(--page-translucent);
}

.brand {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--line-strong);
  place-content: center;
  color: var(--accent);
  font: 700 1.15rem/1 var(--font-mono);
  letter-spacing: -0.15em;
}

.brand-name,
.brand-subtitle {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-name {
  font: 700 1.1rem/1.1 var(--font-condensed);
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.brand-subtitle {
  margin-top: 0.18rem;
  color: var(--ink-muted);
  font-size: 0.78rem;
}

.search-shell {
  position: relative;
}

.search-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.search-box {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 2.65rem;
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.search-icon {
  padding-left: 0.75rem;
  color: var(--accent);
  font-family: var(--font-mono);
}

#help-search {
  min-width: 0;
  padding: 0.55rem 0.7rem;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
}

.search-shortcut {
  margin-right: 0.55rem;
  padding: 0.1rem 0.35rem;
  border: 1px solid var(--line);
  color: var(--ink-muted);
  background: var(--surface-muted);
  font: 0.7rem/1.3 var(--font-mono);
}

.search-results {
  position: absolute;
  z-index: 80;
  top: calc(100% + 0.35rem);
  right: 0;
  left: 0;
  max-height: min(65vh, 34rem);
  overflow-y: auto;
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.search-results[hidden] {
  display: none;
}

.search-result {
  display: block;
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

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

.search-result:hover,
.search-result[aria-selected="true"] {
  background: var(--accent-soft);
}

.search-result-title,
.search-result-meta,
.search-result-snippet {
  display: block;
}

.search-result-title {
  color: var(--accent-dark);
  font-weight: 700;
}

.search-result-meta {
  margin-top: 0.1rem;
  color: var(--ink-muted);
  font: 0.68rem/1.3 var(--font-mono);
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.search-result-snippet {
  margin-top: 0.3rem;
  color: var(--ink-muted);
  font-size: 0.86rem;
  line-height: 1.38;
}

.search-empty {
  margin: 0;
  padding: 1rem;
  color: var(--ink-muted);
}

.menu-toggle {
  display: none;
  min-height: 2.45rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}

.layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  max-width: calc(var(--sidebar-width) + var(--content-width));
  margin: 0 auto;
}

.sidebar {
  position: sticky;
  top: 4.6rem;
  align-self: start;
  height: calc(100vh - 4.6rem);
  overflow-y: auto;
  padding: 1.2rem 1rem 2rem;
  border-right: 1px solid var(--line);
  background: var(--page);
}

.toc-heading {
  margin: 0 0 0.8rem;
  color: var(--ink-muted);
  font: 700 0.72rem/1.2 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.toc-group + .toc-group {
  margin-top: 1.1rem;
}

.toc-group-title {
  margin: 0 0 0.32rem;
  color: var(--ink);
  font: 700 0.82rem/1.25 var(--font-condensed);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc-link {
  display: block;
  margin-left: -0.4rem;
  padding: 0.32rem 0.4rem 0.32rem 0.65rem;
  border-left: 2px solid transparent;
  color: var(--ink-muted);
  font-size: 0.87rem;
  line-height: 1.35;
  text-decoration: none;
}

.toc-link:hover {
  border-left-color: var(--line-strong);
  color: var(--ink);
}

.toc-link[aria-current="location"] {
  border-left-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 700;
}

.content {
  width: 100%;
  min-width: 0;
  padding: clamp(1.3rem, 3vw, 3rem) clamp(1rem, 4vw, 4rem) 7rem;
}

.hero {
  position: relative;
  margin-bottom: 2.5rem;
  padding: clamp(1.4rem, 4vw, 3.2rem);
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.hero::before,
.hero::after {
  position: absolute;
  width: 0.65rem;
  height: 0.65rem;
  content: "";
}

.hero::before {
  top: -0.34rem;
  left: -0.34rem;
  border-top: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
}

.hero::after {
  right: -0.34rem;
  bottom: -0.34rem;
  border-right: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
}

.kicker {
  margin: 0 0 0.45rem;
  color: var(--accent-dark);
  font: 700 0.72rem/1.2 var(--font-mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 18ch;
  margin: 0;
  font: 700 clamp(2.1rem, 5.5vw, 4.3rem)/0.98 var(--font-condensed);
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.hero-lede {
  max-width: 55rem;
  margin: 1.1rem 0 0;
  color: var(--ink-muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.2rem;
  margin-top: 1.4rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font: 0.73rem/1.4 var(--font-mono);
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0 0 3rem;
}

.quick-link {
  display: block;
  min-height: 7.5rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--surface);
  text-decoration: none;
}

.quick-link:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.quick-link-label {
  display: block;
  color: var(--accent-dark);
  font: 700 0.72rem/1.2 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.quick-link-title {
  display: block;
  margin-top: 0.5rem;
  color: var(--ink);
  font: 700 1.2rem/1.15 var(--font-condensed);
}

.quick-link-copy {
  display: block;
  margin-top: 0.4rem;
  color: var(--ink-muted);
  font-size: 0.86rem;
  line-height: 1.4;
}

.help-topic {
  position: relative;
  max-width: 68rem;
  margin: 0 0 3.4rem;
  padding: clamp(1.15rem, 3vw, 2rem);
  border-top: 3px solid var(--line-strong);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: var(--surface);
  scroll-margin-top: 5.5rem;
}

.help-topic:target {
  border-top-color: var(--accent);
}

.topic-category {
  margin: 0 0 0.3rem;
  color: var(--accent-dark);
  font: 700 0.68rem/1.25 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.help-topic h2 {
  margin: 0;
  font: 700 clamp(1.65rem, 3vw, 2.25rem)/1.08 var(--font-condensed);
  letter-spacing: -0.01em;
}

.help-topic h3 {
  margin: 1.7rem 0 0.45rem;
  font: 700 1.2rem/1.25 var(--font-condensed);
}

.help-topic h4 {
  margin: 1.3rem 0 0.35rem;
  font: 700 0.98rem/1.3 var(--font-ui);
}

.help-topic > p:first-of-type {
  color: var(--ink-muted);
  font-size: 1.05rem;
}

.help-topic p,
.help-topic ul,
.help-topic ol,
.help-topic table,
.help-topic dl {
  max-width: 59rem;
}

.help-topic li + li {
  margin-top: 0.35rem;
}

.help-topic code,
kbd {
  font-family: var(--font-mono);
}

kbd {
  display: inline-block;
  min-width: 1.5em;
  padding: 0.08rem 0.35rem;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  background: var(--surface-muted);
  font-size: 0.78em;
  line-height: 1.4;
  text-align: center;
}

.steps {
  padding-left: 1.35rem;
}

.steps > li {
  padding-left: 0.35rem;
}

.steps > li::marker {
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-weight: 700;
}

.note,
.warning,
.safety,
.tip {
  margin: 1.2rem 0;
  padding: 0.8rem 1rem;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
}

.warning {
  border-left-color: var(--attention);
  background: var(--attention-tint);
}

.safety {
  border-left-color: var(--danger);
  background: var(--danger-tint);
}

.tip {
  border-left-color: var(--healthy);
  background: var(--healthy-tint);
}

.note strong:first-child,
.warning strong:first-child,
.safety strong:first-child,
.tip strong:first-child {
  font-family: var(--font-condensed);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 1.25rem 0;
  padding: 0;
  list-style: none;
  counter-reset: workflow;
}

.workflow li {
  min-height: 6.2rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  background: var(--page);
  counter-increment: workflow;
}

.workflow li::before {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--accent-dark);
  content: counter(workflow, decimal-leading-zero);
  font: 700 0.72rem/1 var(--font-mono);
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  padding: 0.58rem 0.65rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-muted);
  font: 700 0.76rem/1.3 var(--font-condensed);
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

dt {
  margin-top: 0.8rem;
  color: var(--accent-dark);
  font-weight: 700;
}

dd {
  margin: 0.15rem 0 0 1rem;
}

.article-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 1.8rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
}

.page-footer {
  max-width: 68rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.82rem;
}

.noscript-note {
  margin: 0;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--attention);
  background: var(--attention-tint);
  text-align: center;
}

@media (max-width: 880px) {
  .app-header {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .search-shell {
    grid-row: 2;
    grid-column: 1 / -1;
  }

  .menu-toggle {
    display: inline-block;
  }

  .layout {
    display: block;
  }

  .sidebar {
    position: fixed;
    z-index: 45;
    top: 7.95rem;
    bottom: 0;
    left: 0;
    width: min(88vw, 22rem);
    height: auto;
    border-right-color: var(--line-strong);
    box-shadow: 0.75rem 0 0 rgba(32, 37, 42, 0.14);
    transform: translateX(-110%);
    transition: transform 160ms ease-out;
  }

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

  .content {
    padding-top: 1.5rem;
  }

  .quick-links {
    grid-template-columns: 1fr;
  }

  .workflow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .brand-subtitle,
  .search-shortcut {
    display: none;
  }

  .workflow {
    grid-template-columns: 1fr;
  }

  .hero-meta {
    display: block;
  }

  .hero-meta span {
    display: block;
    margin-top: 0.3rem;
  }
}

a.term {
  text-decoration: underline dotted;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 0.15em;
  cursor: help;
}

.term-tooltip {
  position: absolute;
  z-index: 120;
  max-width: 22rem;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  background: var(--ink);
  color: var(--surface);
  font-size: 0.85rem;
  line-height: 1.45;
  box-shadow: 0 0.4rem 1.1rem rgba(0, 0, 0, 0.28);
  pointer-events: none;
}

.term-tooltip[hidden] {
  display: none;
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  @page {
    margin: 1.5cm;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 10pt;
  }

  .skip-link,
  .app-header,
  .sidebar,
  .quick-links,
  .article-footer {
    display: none !important;
  }

  .layout {
    display: block;
    max-width: none;
  }

  .content {
    padding: 0;
  }

  .hero,
  .help-topic {
    max-width: none;
    margin-bottom: 1cm;
    padding: 0;
    border: 0;
    break-inside: avoid-page;
  }

  .help-topic {
    break-before: page;
  }

  a {
    color: #000;
    text-decoration: none;
  }

  .note,
  .warning,
  .safety,
  .tip {
    border: 1px solid #777;
    background: #fff;
  }
}