:root {
  color-scheme: dark;
  --help-page-max: 1240px;
  --help-reading-max: 760px;
  --help-sidebar-width: 236px;
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  background: var(--kf-client-bg);
  color: var(--kf-client-text);
  font-family: var(--font-ui);
  letter-spacing: 0;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--kf-client-bg);
  color: var(--kf-client-text);
  font-size: 14px;
  line-height: 1.55;
}

a { color: inherit; }

img { display: block; max-width: 100%; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.help-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 max(16px, env(safe-area-inset-left));
  border-bottom: 1px solid var(--kf-client-border-soft);
  background: var(--kf-client-surface-0);
}

.help-brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 9px;
  color: var(--kf-client-text-strong);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
}

.help-brand img { width: 23px; height: 23px; }

.help-header-actions {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 16px;
}

.help-language select {
  width: 132px;
  height: 32px;
  border: 0;
  border-bottom: 1px solid var(--kf-client-border);
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--kf-client-text-muted);
  font: 500 12px/1.4 var(--font-ui);
}

.help-language option { background: var(--kf-client-surface-1); color: var(--kf-client-text); }

.help-back {
  position: relative;
  color: var(--kf-client-text);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
}

.help-back::after { content: "  /"; color: var(--kf-selection-mark); }

.help-layout {
  display: grid;
  width: min(var(--help-page-max), calc(100% - 48px));
  min-height: calc(100vh - 116px);
  grid-template-columns: var(--help-sidebar-width) minmax(0, 1fr);
  gap: 46px;
  margin: 0 auto;
}

.help-sidebar {
  border-inline-end: 1px solid var(--kf-client-border-soft);
  padding: 34px 28px 48px 4px;
}

.help-sidebar nav {
  position: sticky;
  top: 88px;
  display: grid;
  gap: 24px;
}

.help-nav-group { display: grid; gap: 3px; }

.help-nav-group > span {
  padding: 0 10px 7px;
  color: var(--kf-client-text-faint);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  text-transform: uppercase;
}

.help-nav-group a {
  position: relative;
  display: block;
  min-height: 30px;
  padding: 6px 10px;
  color: var(--kf-client-text-muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  text-decoration: none;
}

.help-nav-group a:hover { color: var(--kf-client-text-strong); }

.help-nav-group a.active {
  color: var(--kf-client-text-strong);
  font-weight: 600;
}

.help-nav-group a.active::before {
  position: absolute;
  top: 50%;
  inset-inline-start: 0;
  width: 2px;
  height: 16px;
  background: var(--kf-selection-mark);
  content: "";
  transform: translateY(-50%);
}

.help-content {
  width: min(100%, var(--help-reading-max));
  padding: 46px 0 72px;
}

.help-article { display: grid; gap: 36px; }

.help-article-header {
  display: grid;
  gap: 11px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--kf-client-border-soft);
}

.help-kicker {
  margin: 0;
  color: var(--kf-client-text-faint);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  text-transform: uppercase;
}

.help-article h1,
.help-entry h1 {
  margin: 0;
  color: var(--kf-client-text-strong);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.25;
}

.help-article h2 {
  margin: 0 0 14px;
  color: var(--kf-client-text-strong);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
}

.help-lede,
.help-summary,
.help-answer p {
  max-width: 68ch;
  margin: 0;
  color: var(--kf-client-text-muted);
  font-size: 14px;
  line-height: 1.75;
}

.help-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 5px 0 0;
}

.help-meta div { display: flex; gap: 7px; }
.help-meta dt { color: var(--kf-client-text-faint); font-size: 11px; }
.help-meta dd { margin: 0; color: var(--kf-client-text-muted); font-size: 11px; }

.help-answer {
  border-inline-start: 2px solid var(--kf-selection-mark);
  padding-inline-start: 18px;
}

.help-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.help-steps li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--kf-client-border-soft);
}

.help-steps li:first-child { border-top: 1px solid var(--kf-client-border-soft); }

.help-steps li > span {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border: 1px solid var(--kf-client-border);
  border-radius: 4px;
  color: var(--kf-client-text-muted);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  font-weight: 600;
}

.help-steps p { margin: 0; color: var(--kf-client-text); line-height: 1.7; }

.help-notes {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-inline-start: 18px;
  color: var(--kf-client-text-muted);
}

.help-notes li { padding-inline-start: 4px; }

.help-related {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding-top: 24px;
  border-top: 1px solid var(--kf-client-border-soft);
}

.help-related h2 { flex-basis: 100%; margin-bottom: 2px; }

.help-related a {
  color: var(--kf-client-text-muted);
  font-size: 12px;
  text-decoration-color: var(--kf-client-border-strong);
  text-underline-offset: 3px;
}

.help-index-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--kf-client-border-soft);
}

.help-index-list li { border-bottom: 1px solid var(--kf-client-border-soft); }

.help-index-list a {
  display: grid;
  gap: 4px;
  padding: 15px 2px;
  color: var(--kf-client-text);
  text-decoration: none;
}

.help-index-list a:hover span,
.help-index-list a:hover bdi { color: var(--kf-client-text-strong); }

.help-index-list small {
  color: var(--kf-client-text-faint);
  font-size: 12px;
  line-height: 1.55;
}

.help-facts {
  margin: 0;
  border-top: 1px solid var(--kf-client-border-soft);
}

.help-fact-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.72fr) minmax(0, 1.28fr);
  gap: 22px;
  padding: 12px 0;
  border-bottom: 1px solid var(--kf-client-border-soft);
}

.help-fact-row dt { color: var(--kf-client-text-muted); font-size: 12px; }

.help-fact-row dd {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 4px 12px;
  margin: 0;
  color: var(--kf-client-text-strong);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  text-align: start;
}

.help-fact-row dd span { white-space: nowrap; }

.help-model-footnote {
  margin: -12px 0 0;
  color: var(--kf-client-text-faint);
  font-size: 11px;
}

.help-entry {
  display: grid;
  width: min(620px, 100%);
  gap: 14px;
  margin: 0 auto;
  padding-top: 60px;
}

.help-language-list {
  display: grid;
  margin-top: 18px;
  border-top: 1px solid var(--kf-client-border-soft);
}

.help-language-entry {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--kf-client-border-soft);
  color: var(--kf-client-text);
  text-decoration: none;
}

.help-language-entry:hover { color: var(--kf-client-text-strong); }
.help-language-entry span:last-child { color: var(--kf-selection-mark); }

.help-footer {
  display: flex;
  width: min(var(--help-page-max), calc(100% - 48px));
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 auto;
  border-top: 1px solid var(--kf-client-border-soft);
  color: var(--kf-client-text-faint);
  font-size: 11px;
}

.help-footer nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.help-footer a { color: var(--kf-client-text-muted); text-decoration: none; }
.help-footer a:hover { color: var(--kf-client-text-strong); text-decoration: underline; text-underline-offset: 3px; }

:is(a, select):focus-visible {
  outline: 1px solid var(--kf-client-border-strong);
  outline-offset: 3px;
}

@media (max-width: 899px) {
  .help-layout {
    width: min(100% - 32px, var(--help-reading-max));
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .help-sidebar {
    overflow-x: auto;
    border-inline-end: 0;
    border-bottom: 1px solid var(--kf-client-border-soft);
    padding: 14px 0;
    scrollbar-width: thin;
  }

  .help-sidebar nav {
    position: static;
    display: flex;
    width: max-content;
    gap: 12px;
  }

  .help-nav-group { display: flex; align-items: center; gap: 3px; }
  .help-nav-group > span { padding: 0 8px; }
  .help-nav-group a { white-space: nowrap; }
  .help-content { padding: 34px 0 58px; }
  .help-entry { padding-top: 40px; }
}

@media (max-width: 599px) {
  .help-header { gap: 12px; padding-inline: 12px; }
  .help-brand span { display: none; }
  .help-header-actions { flex: 1; justify-content: flex-end; gap: 12px; }
  .help-language select { width: 116px; }
  .help-layout { width: calc(100% - 24px); }
  .help-content { padding-top: 28px; }
  .help-article { gap: 30px; }
  .help-article h1, .help-entry h1 { font-size: 20px; }
  .help-fact-row { grid-template-columns: minmax(0, 1fr); gap: 5px; }
  .help-footer { width: calc(100% - 24px); align-items: flex-start; flex-direction: column; gap: 8px; padding: 18px 0; }
}

@media (min-width: 2880px) {
  .help-layout,
  .help-footer { width: min(1320px, calc(100% - 64px)); }
  .help-layout { grid-template-columns: 252px minmax(0, 1fr); gap: 56px; }
}

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