/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Tokens ────────────────────────────────────────────── */
:root {
  --bg:           #ffffff;
  --bg-sidebar:   #f7f7f6;
  --bg-card:      #f2f2f0;
  --bg-code:      #f4f4f2;
  --border:       #e8e8e5;
  --border-subtle:#efefec;

  --fg:           #111110;
  --fg-secondary: #3a3a38;
  --fg-muted:     #6b6b68;
  --fg-dim:       #a0a09c;

  --accent:       #0ea39d;
  --accent-light: rgba(14, 163, 157, .10);

  --sidebar-w:    232px;
  --topbar-h:     48px;
  --content-max:  700px;

  --font-body:    'Inter', system-ui, sans-serif;
  --font-ui:      'Space Grotesk', system-ui, sans-serif;

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Base ──────────────────────────────────────────────── */
html { background: var(--bg); }

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.72;
  color: var(--fg);
  background: var(--bg);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

/* ── Pagefind ──────────────────────────────────────────── */
#search {
  width: 220px;
  position: relative;
}

.pagefind-ui { position: relative; }

.pagefind-ui__form { position: relative !important; }

.pagefind-ui__form::before {
  width: 14px !important;
  height: 14px !important;
  top: 9px !important;
  left: 10px !important;
  opacity: .4 !important;
}

.pagefind-ui__search-input {
  width: 100% !important;
  height: 32px !important;
  font-size: 13px !important;
  font-weight: 400 !important;
  font-family: var(--font-body) !important;
  color: var(--fg) !important;
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  border-radius: 6px !important;
  padding: 0 12px 0 32px !important;
  outline: none !important;
  box-shadow: none !important;
}
.pagefind-ui__search-input:focus { border-color: var(--fg-muted) !important; }
.pagefind-ui__search-input::placeholder { color: var(--fg-dim) !important; opacity: 1 !important; }

.pagefind-ui__search-clear {
  position: absolute !important;
  top: 0 !important;
  right: 0 !important;
  height: 32px !important;
  width: 30px !important;
  padding: 0 !important;
  font-size: 0 !important;
  line-height: 32px !important;
  text-align: center !important;
  color: var(--fg-muted) !important;
  background: transparent !important;
  border: none !important;
  border-radius: 6px !important;
  cursor: pointer !important;
}
.pagefind-ui__search-clear::before { content: "\00d7"; font-size: 18px; }
.pagefind-ui__search-clear:hover { color: var(--fg) !important; }
.pagefind-ui__search-clear.pagefind-ui__suppressed { opacity: 0 !important; pointer-events: none !important; }
.pagefind-ui__search-input { padding-right: 30px !important; }

.pagefind-ui__results-area {
  position: absolute !important;
  top: calc(100% + 8px) !important;
  right: 0 !important;
  left: auto !important;
  width: 420px !important;
  background: #ffffff !important;
  border: 1px solid var(--border) !important;
  border-radius: 10px !important;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .14) !important;
  z-index: 500 !important;
  max-height: 520px !important;
  overflow-y: auto !important;
  padding: 6px 0 !important;
}

.pagefind-ui__result {
  position: relative !important;
  padding: 11px 18px !important;
  border-bottom: 1px solid var(--border-subtle) !important;
  background: #ffffff !important;
  cursor: pointer !important;
}
.pagefind-ui__result:last-child { border-bottom: none !important; }
.pagefind-ui__result:hover { background: var(--bg-card) !important; }

.pagefind-ui__result-title {
  font-family: var(--font-ui) !important;
  font-size: 13.5px !important;
  font-weight: 600 !important;
  color: var(--fg) !important;
  margin-bottom: 3px !important;
}
.pagefind-ui__result-title a {
  color: var(--fg) !important;
  text-decoration: none !important;
}
.pagefind-ui__result-title a::after {
  content: '' !important;
  position: absolute !important;
  inset: 0 !important;
}
.pagefind-ui__result:hover .pagefind-ui__result-title a { color: var(--accent) !important; }

.pagefind-ui__result-excerpt {
  font-size: 12.5px !important;
  color: var(--fg-muted) !important;
  line-height: 1.55 !important;
}
.pagefind-ui__result-excerpt mark {
  background: #fef08a !important;
  color: var(--fg) !important;
  border-radius: 2px !important;
  padding: 0 1px !important;
}

.pagefind-ui__message {
  font-size: 13px !important;
  color: var(--fg-muted) !important;
  padding: 14px 18px !important;
  background: #ffffff !important;
}

/* ── Topbar ────────────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  z-index: 100;
}

.topbar-brand {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: .01em;
}
.topbar-brand:hover { text-decoration: none; color: var(--fg); }

.topbar-nav { display: flex; gap: 2px; }
.topbar-nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  padding: 5px 10px;
  border-radius: 6px;
  transition: color .15s, background .15s;
}
.topbar-nav a:hover {
  color: var(--fg);
  background: var(--bg-card);
  text-decoration: none;
}

/* ── Layout ────────────────────────────────────────────── */
.layout {
  display: flex;
  padding-top: var(--topbar-h);
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
}

.sidebar-inner { padding: 28px 14px 48px; }

.nav-home {
  display: block;
  font-family: var(--font-ui);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--fg-muted);
  padding: 5px 8px;
  border-radius: 5px;
  margin-bottom: 20px;
  transition: color .12s;
}
.nav-home:hover { color: var(--fg); text-decoration: none; }
.nav-home.is-current { color: var(--fg); font-weight: 600; }

.nav-section { margin-bottom: 2px; }

.nav-section-header {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-section-title {
  flex: 1;
  font-family: var(--font-ui);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--fg-dim);
  padding: 5px 8px;
  border-radius: 5px;
  transition: color .15s, background .15s;
  text-decoration: none;
}
.nav-section-title:hover {
  color: var(--fg-muted);
  background: var(--border);
  text-decoration: none;
}
.nav-section-title.is-active { color: var(--fg-muted); }

.nav-toggle {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 4px;
  color: var(--fg-dim);
  transition: background .12s, color .12s;
  padding: 0;
}
.nav-toggle:hover { background: var(--border); color: var(--fg-muted); }

.nav-toggle-icon {
  display: block;
  width: 8px;
  height: 8px;
  position: relative;
}
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 1px;
  transition: transform .15s, opacity .15s;
}
.nav-toggle-icon::before { width: 8px; height: 1.5px; top: 3px; left: 0; }
.nav-toggle-icon::after  { width: 1.5px; height: 8px; top: 0; left: 3px; }

.nav-section.is-open .nav-toggle-icon::after { transform: scaleY(0); opacity: 0; }

.nav-pages {
  list-style: none;
  padding-left: 8px;
  margin-top: 2px;
  display: none;
}
.nav-section.is-open .nav-pages { display: block; }

.nav-pages { list-style: none; }
.nav-pages li { margin-bottom: 1px; }

.nav-pages a {
  display: block;
  padding: 5px 8px;
  font-size: 13.5px;
  color: var(--fg-muted);
  border-radius: 5px;
  transition: color .12s, background .12s;
}
.nav-pages a:hover {
  color: var(--fg);
  background: var(--border);
  text-decoration: none;
}
.nav-pages a.is-current {
  color: var(--fg);
  font-weight: 500;
  border-left: 2px solid var(--fg-muted);
  padding-left: 6px;
}

.nav-subgroup { margin-bottom: 1px; }

.nav-subgroup-title {
  display: block;
  padding: 4px 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  border-radius: 5px;
  transition: color .12s, background .12s;
  text-decoration: none;
}
.nav-subgroup-title:hover {
  color: var(--fg);
  background: var(--border);
  text-decoration: none;
}
.nav-subgroup-title.is-active { color: var(--fg); }
.nav-subgroup-title.is-current {
  font-weight: 600;
  border-left: 2px solid var(--fg-muted);
  padding-left: 6px;
}

.nav-subpages {
  list-style: none;
  padding-left: 20px;
  margin: 2px 0 4px;
  display: none;
}
.nav-subpages li { list-style: none; }
.nav-subgroup.is-open .nav-subpages { display: block; }

/* ── Content ───────────────────────────────────────────── */
.content {
  flex: 1;
  min-width: 0;
  padding: 56px 72px 96px;
}

/* ── Page ──────────────────────────────────────────────── */
.page { max-width: var(--content-max); }

.page-meta {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--fg-dim);
  margin-bottom: 10px;
}

.page h1 {
  font-family: var(--font-ui);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.025em;
  color: var(--fg);
  margin-bottom: 14px;
}

.page-lead {
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg-muted);
  margin-bottom: 36px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

/* ── Body content ──────────────────────────────────────── */
.page-body h2 {
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -.01em;
  margin-top: 48px;
  margin-bottom: 12px;
  padding-top: 40px;
  border-top: 1px solid var(--border-subtle);
}
.page-body h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }

.page-body h3 {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--fg-muted);
  margin-top: 28px;
  margin-bottom: 8px;
}

.page-body p { margin-bottom: 16px; }
.page-body p:last-child { margin-bottom: 0; }

.page-body ul,
.page-body ol { padding-left: 20px; margin-bottom: 16px; }
.page-body li { margin-bottom: 5px; }

/* ── Tables ────────────────────────────────────────────── */
.page-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  margin: 4px 0 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.page-body th {
  text-align: left;
  font-family: var(--font-ui);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--fg-muted);
  padding: 9px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.page-body td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
  color: var(--fg-secondary);
}
.page-body tr:last-child td { border-bottom: none; }

.page-body td:first-child {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 13.5px;
  color: var(--fg);
  white-space: nowrap;
}

/* ── Inline code ───────────────────────────────────────── */
.page-body code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12.5px;
  background: var(--bg-code);
  color: var(--fg-secondary);
  padding: 2px 5px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* ── Section / page lists ──────────────────────────────── */
.page-list,
.section-list { list-style: none; padding: 0; margin-top: 8px; }

.page-list li,
.section-list li { border-bottom: 1px solid var(--border-subtle); }

.page-list li:first-child,
.section-list li:first-child { border-top: 1px solid var(--border-subtle); }

.page-list a,
.section-list a {
  display: block;
  padding: 14px 2px;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
  transition: color .12s;
}
.page-list a:hover,
.section-list a:hover { color: var(--accent); text-decoration: none; }

.page-desc {
  display: block;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  color: var(--fg-muted);
  padding-bottom: 14px;
  margin-top: 1px;
}

/* ── Language switch ───────────────────────────────────── */
.lang-switch {
  display: flex;
  gap: 2px;
}

.lang-switch a {
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-ui);
  letter-spacing: .05em;
  color: var(--fg-dim);
  padding: 4px 7px;
  border-radius: 5px;
  transition: color .12s, background .12s;
}
.lang-switch a:hover {
  color: var(--fg);
  background: var(--bg-card);
  text-decoration: none;
}
.lang-switch a.is-current {
  color: var(--fg);
  background: var(--bg-card);
}

/* ── Page footer ───────────────────────────────────────── */
.page-footer {
  margin-top: 80px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--fg-dim);
  font-family: var(--font-ui);
}
.page-footer a {
  color: var(--fg-dim);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-footer a:hover {
  color: var(--fg);
}

/* ── Home ──────────────────────────────────────────────── */
.page--home h1 { font-size: 42px; margin-bottom: 14px; }