/* ============================================================
   Rulebound Theme — style.css
   Clean, responsive documentation site styling.
   No external dependencies. Mobile-first.
   ============================================================ */

/* ── Design tokens ─────────────────────────────────────────── */
:root {
  /* Colors */
  --color-bg:          #ffffff;
  --color-surface:     #f8f9fa;
  --color-border:      #dee2e6;
  --color-border-light:#e9ecef;
  --color-text:        #212529;
  --color-text-muted:  #6c757d;
  --color-text-light:  #adb5bd;
  --color-heading:     #1a1a2e;
  --color-link:        #0550ae;
  --color-link-hover:  #033d8b;
  --color-code-bg:     #f1f3f5;
  --color-code-text:   #c7254e;
  --color-highlight:   #fff3cd;

  /* Severity */
  --color-error:       #dc3545;
  --color-warning:     #fd7e14;
  --color-suggestion:  #0d6efd;
  --color-error-bg:    #fff5f5;
  --color-warning-bg:  #fff8f0;
  --color-suggestion-bg: #f0f6ff;

  /* Layout */
  --sidebar-width:     260px;
  --header-height:     52px;
  --content-max:       860px;
  --radius:            6px;
  --radius-sm:         4px;

  /* Typography */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --font-size-base: 16px;
  --line-height: 1.6;
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
}

a {
  color: var(--color-link);
  text-decoration: none;
}
a:hover { color: var(--color-link-hover); text-decoration: underline; }

h1, h2, h3, h4, h5, h6 {
  color: var(--color-heading);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.5em;
}
h1 { font-size: 1.875rem; }
h2 { font-size: 1.375rem; margin-top: 1.5rem; }
h3 { font-size: 1.125rem; margin-top: 1.25rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }
li { margin-bottom: 0.25rem; }

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--color-code-text);
  background: var(--color-code-bg);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
}

pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}
pre code {
  color: var(--color-text);
  background: none;
  padding: 0;
  font-size: 0.875rem;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 1rem;
}
th, td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: top;
}
th {
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border-bottom-color: var(--color-border);
}
tr:hover { background: var(--color-surface); }

details > summary {
  cursor: pointer;
  user-select: none;
  list-style: none;
}
details > summary::-webkit-details-marker { display: none; }
details > summary::before {
  content: '▶';
  display: inline-block;
  margin-right: 0.4em;
  font-size: 0.7em;
  transition: transform 0.15s;
  vertical-align: middle;
}
details[open] > summary::before { transform: rotate(90deg); }

/* ── Layout shell ───────────────────────────────────────────── */
.page-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ── Mobile header ─────────────────────────────────────────── */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-height);
  background: var(--color-heading);
  color: #fff;
  align-items: center;
  padding: 0 1rem;
  gap: 0.75rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.mobile-brand {
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
}
.sidebar-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-radius: var(--radius-sm);
}
.sidebar-toggle:hover { background: rgba(255,255,255,0.1); }
.hamburger-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 1px;
}

/* ── Sidebar ───────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 1rem 1rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-heading);
  text-decoration: none;
  display: block;
}
.sidebar-brand:hover { color: var(--color-link); text-decoration: none; }

.sidebar-search {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border-light);
}

/* Prevent layout shift before Pagefind assets load */
.sidebar-search .search-widget { min-height: 0; }

.sidebar-group {
  padding: 0.75rem 0 0.25rem;
}
.sidebar-group-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  padding: 0 1rem 0.35rem;
  margin: 0;
}

.sidebar-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sidebar-item { margin: 0; }
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 1rem;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.875rem;
  border-left: 2px solid transparent;
  transition: background 0.1s, border-color 0.1s, color 0.1s;
}
.sidebar-link:hover {
  background: var(--color-border-light);
  color: var(--color-heading);
  text-decoration: none;
}
.sidebar-item.active .sidebar-link {
  background: #e8f0fe;
  border-left-color: var(--color-link);
  color: var(--color-link);
  font-weight: 500;
}
.sidebar-link-text { flex: 1; }

/* Severity dots in sidebar */
.severity-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.severity-dot--error      { background: var(--color-error); }
.severity-dot--warning    { background: var(--color-warning); }
.severity-dot--suggestion { background: var(--color-suggestion); }

/* Sidebar backdrop (mobile overlay) */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 149;
}

/* ── Main content ──────────────────────────────────────────── */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 2rem 2.5rem;
  max-width: calc(var(--content-max) + 5rem);
}

/* ── Breadcrumb ────────────────────────────────────────────── */
.breadcrumb {
  margin-bottom: 1.5rem;
}
.breadcrumb ol {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.breadcrumb li + li::before { content: '/'; margin-right: 0.25rem; }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-link); }
.breadcrumb li[aria-current="page"] { color: var(--color-text); }

/* ── Severity badges ───────────────────────────────────────── */
.severity-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2em 0.65em;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.4;
  vertical-align: middle;
  white-space: nowrap;
}
.severity-error      { background: var(--color-error);      color: #fff; }
.severity-warning    { background: var(--color-warning);    color: #fff; }
.severity-suggestion { background: var(--color-suggestion); color: #fff; }

/* ── Type badge & category tag ─────────────────────────────── */
.type-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.2em 0.6em;
  border-radius: var(--radius-sm);
  background: #e9ecef;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
}
.type-badge:hover { background: #d0d6de; color: var(--color-text); text-decoration: none; }

.category-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.2em 0.6em;
  border-radius: var(--radius-sm);
  background: #dbeafe;
  color: #1d4ed8;
  text-decoration: none;
  white-space: nowrap;
}
.category-tag:hover { background: #bfdbfe; color: #1e40af; text-decoration: none; }

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

.rule-header { margin-bottom: 1.5rem; }

.rule-title-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.rule-title { margin-bottom: 0; }

.rule-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}
.rule-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.meta-label {
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}
.meta-link, .external-link {
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.external-link::after {
  content: '↗';
  font-size: 0.75em;
  opacity: 0.7;
}

.rule-message {
  background: var(--color-surface);
  border-left: 3px solid var(--color-border);
  padding: 0.75rem 1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.9375rem;
  color: var(--color-text);
  margin: 0;
}
em.matched-text {
  font-style: normal;
  background: #fef9c3;
  color: #713f12;
  padding: 0.05em 0.35em;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.rule-body { margin-bottom: 1.5rem; }

.rule-section {
  margin-bottom: 1.5rem;
  border-top: 1px solid var(--color-border-light);
  padding-top: 1rem;
}
.rule-section:first-child { border-top: none; padding-top: 0; }
.rule-section h3 {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 0.75rem;
  margin-top: 0;
}

.rule-details-section { margin-bottom: 1.5rem; }

/* Technical details collapsible */
.technical-details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-top: 1.5rem;
}
.technical-details > summary {
  padding: 0.65rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border-radius: var(--radius);
}
.technical-details[open] > summary {
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--radius) var(--radius) 0 0;
}
.technical-details .detail-list { padding: 0.875rem; margin: 0; }

/* ── Token lists ───────────────────────────────────────────── */
.token-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
}
.token-list li { margin: 0; }
.token-list code { font-size: 0.8125rem; }

.token-list--mono code { font-family: var(--font-mono); }

.token-list--inline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

/* ── Swap/detail tables ────────────────────────────────────── */
.swap-table { font-size: 0.875rem; }
.swap-table td:first-child code { color: var(--color-error); }
.swap-table td:last-child  code { color: #166534; }

/* ── Detail list (dl) ──────────────────────────────────────── */
.detail-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.4rem 1.25rem;
  font-size: 0.875rem;
  margin: 0;
}
.detail-list dt {
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.detail-list dd { margin: 0; }

.detail-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

/* ── Collapsible (details/summary) ────────────────────────── */
.collapsible {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.collapsible > summary {
  padding: 0.6rem 0.875rem;
  background: var(--color-surface);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}
.collapsible > summary:hover { background: var(--color-border-light); }
.collapsible[open] > summary { border-bottom: 1px solid var(--color-border); }
.collapsible > *:not(summary) { padding: 0.875rem; }
.collapsible-hint { color: var(--color-text-muted); font-weight: 400; font-size: 0.8125rem; }

/* Indicator code chips */
.indicator {
  background: #e0e7ff;
  color: #3730a3;
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  margin-right: 0.25rem;
}

/* Regex code */
.regex {
  word-break: break-all;
}

/* Code block */
.code-block {
  background: #1e1e1e;
  color: #d4d4d4;
  border-radius: var(--radius);
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.5;
}
.code-block code {
  background: none;
  color: inherit;
  font-size: inherit;
  padding: 0;
}

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

.list-header { margin-bottom: 1.5rem; }
.list-intro { color: var(--color-text-muted); font-size: 1rem; margin-top: 0.5rem; }
.list-count { font-size: 0.875rem; color: var(--color-text-muted); margin-top: 0.5rem; }

/* ── Stats grid (on list / rules index pages) ──────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.75rem;
}
.stats-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
}
.stats-card h3 {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0;
  margin-bottom: 0.75rem;
}
.stats-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.stats-list li { margin: 0; }
.stats-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  text-decoration: none;
  padding: 0.2rem 0;
}
.stats-link:hover .severity-badge,
.stats-link:hover .type-badge { opacity: 0.8; }
.stats-count {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-left: auto;
}

/* ── Rule table ────────────────────────────────────────────── */
.rule-table-section { overflow-x: auto; }
.rule-table { min-width: 560px; }
.rule-link { font-weight: 500; }
.rule-description { color: var(--color-text-muted); font-size: 0.875rem; max-width: 340px; }

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

.hero {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 2rem;
}
.hero-title { font-size: 2.25rem; margin-bottom: 0.5rem; }
.hero-description { font-size: 1.125rem; color: var(--color-text-muted); margin-bottom: 1.25rem; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}
.hero-stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1;
}
.hero-stat-label { font-size: 0.875rem; }

.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9375rem;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
}
.btn-primary {
  background: var(--color-link);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-link-hover);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(5,80,174,0.3);
}

/* ── Home grid ─────────────────────────────────────────────── */
.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.home-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.home-card h2 { font-size: 1rem; margin-top: 0; }
.home-card--wide { grid-column: 1 / -1; }

/* ── Breakdown bars ────────────────────────────────────────── */
.breakdown-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.75rem; }
.breakdown-item { margin: 0; }
.breakdown-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.3rem; }
.breakdown-count { font-weight: 600; font-size: 0.875rem; color: var(--color-text-muted); }
.breakdown-bar-track {
  height: 6px;
  background: var(--color-border-light);
  border-radius: 3px;
  overflow: hidden;
}
.breakdown-bar {
  height: 100%;
  border-radius: 3px;
  min-width: 4px;
}
.breakdown-bar--error      { background: var(--color-error); }
.breakdown-bar--warning    { background: var(--color-warning); }
.breakdown-bar--suggestion { background: var(--color-suggestion); }
.breakdown-bar--type       { background: #6366f1; }

/* ── Category grid ─────────────────────────────────────────── */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}
.category-card {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
  text-decoration: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.category-card:hover {
  border-color: var(--color-link);
  box-shadow: 0 2px 8px rgba(5,80,174,0.1);
  text-decoration: none;
}
.category-card-name { font-weight: 600; font-size: 0.9375rem; color: var(--color-heading); }
.category-card-count { font-size: 0.8125rem; color: var(--color-text-muted); }

/* ── Home all-rules section ────────────────────────────────── */
.home-all-rules { margin-top: 0.5rem; }
.home-all-rules h2 { margin-bottom: 1rem; }

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 1rem 2rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}
.footer-inner { max-width: calc(var(--content-max) + var(--sidebar-width)); margin: 0 auto; }
.site-footer a { color: var(--color-text-muted); }
.site-footer a:hover { color: var(--color-link); }

/* ── Mobile / responsive ──────────────────────────────────── */
@media (max-width: 768px) {
  .mobile-header {
    display: flex;
  }

  .page-wrapper {
    flex-direction: column;
  }

  /* Sidebar becomes an off-canvas panel */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    z-index: 150;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: 2px 0 12px rgba(0,0,0,0.15);
    /* Push sidebar below mobile header when open */
    padding-top: var(--header-height);
  }
  .sidebar.is-open {
    transform: translateX(0);
  }

  .sidebar-backdrop.is-visible {
    display: block;
  }

  .main-content {
    padding: 1.25rem 1rem;
    min-height: calc(100vh - var(--header-height));
  }

  .home-grid { grid-template-columns: 1fr; }
  .home-card--wide { grid-column: auto; }

  .rule-title-row { gap: 0.5rem; }
  .rule-title { font-size: 1.5rem; }
  .hero-title { font-size: 1.75rem; }

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

  .detail-list {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
  .detail-list dt { margin-top: 0.5rem; }
  .detail-list dt:first-child { margin-top: 0; }

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

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1rem; }
}

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

.guideline-header { margin-bottom: 1.5rem; }

.guideline-description {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.guideline-body { line-height: 1.7; }

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

.guidelines-intro {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

.guidelines-index {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.guidelines-index-item { margin: 0; }

.guidelines-index-link {
  font-weight: 500;
  font-size: 1rem;
}

.guidelines-index-desc {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

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

.page-header { margin-bottom: 1.5rem; }

.page-body { line-height: 1.7; }

.page-children { margin-top: 1.5rem; }

.page-children-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-children-list li { margin: 0; }

.page-children-list a {
  font-weight: 500;
  font-size: 1rem;
}

/* ── Guidelines sidebar section ───────────────────────────── */
.sidebar-guidelines {
  border-top: 1px solid var(--color-border-light);
  margin-top: 0.25rem;
}

/* ── Pages divider (separates rules from page sections) ──── */
.sidebar-pages-divider {
  border-top: 1px solid var(--color-border-light);
  margin-top: 0.25rem;
}

/* ── Data-driven sidebar sections ────────────────────────── */
.sidebar-section {
  border: none;
  margin: 0;
  padding: 0;
}
.sidebar-section > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
}
.sidebar-section > summary::-webkit-details-marker { display: none; }
/* Override the global details > summary::before for sidebar sections */
.sidebar-section > summary::before {
  content: '\25B6';
  font-size: 0.55em;
  margin-right: 0.35em;
  transition: transform 0.15s;
  vertical-align: middle;
}
.sidebar-section[open] > summary::before {
  transform: rotate(90deg);
}
.sidebar-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  padding: 0.5rem 1rem 0.35rem;
  margin: 0;
  display: block;
}
.sidebar-section-title a {
  color: inherit;
  text-decoration: none;
}
.sidebar-section-title a:hover {
  color: var(--color-link);
  text-decoration: none;
}

/* Depth indentation for nested sidebar sections.
   Links are indented 0.75rem beyond their section title to
   align under the title text (past the triangle marker). */
.sidebar-depth-1 > .sidebar-list .sidebar-link     { padding-left: 1.75rem; }
.sidebar-depth-2 > summary.sidebar-section-title { padding-left: 1.75rem; }
.sidebar-depth-2 > .sidebar-list .sidebar-link     { padding-left: 2.5rem; }
.sidebar-depth-3 > summary.sidebar-section-title { padding-left: 2.5rem; }
.sidebar-depth-3 > .sidebar-list .sidebar-link     { padding-left: 3.25rem; }
.sidebar-depth-4 > summary.sidebar-section-title { padding-left: 3.25rem; }
.sidebar-depth-4 > .sidebar-list .sidebar-link     { padding-left: 4rem; }
.sidebar-depth-5 > summary.sidebar-section-title { padding-left: 4rem; }
.sidebar-depth-5 > .sidebar-list .sidebar-link     { padding-left: 4.75rem; }
.sidebar-depth-6 > summary.sidebar-section-title { padding-left: 4.75rem; }
.sidebar-depth-6 > .sidebar-list .sidebar-link     { padding-left: 5.5rem; }
/* ── Pagefind Modular UI overrides (sidebar-compact) ─────── */
.sidebar-search {
  --pagefind-ui-scale: 0.55;
  --pagefind-ui-primary: var(--color-link);
  --pagefind-ui-text: var(--color-text);
  --pagefind-ui-background: var(--color-bg);
  --pagefind-ui-border: var(--color-border);
  --pagefind-ui-border-width: 1px;
  --pagefind-ui-border-radius: var(--radius);
  --pagefind-ui-tag: var(--color-surface);
  --pagefind-ui-font: var(--font-sans);
}
.sidebar-search .pagefind-modular-input {
  font-weight: 400;
}
.sidebar-search .pagefind-modular-filter-pills-wrapper {
  overflow-x: hidden;
  padding: 6px 0;
}
.sidebar-search .pagefind-modular-filter-pills {
  flex-wrap: wrap;
}
.sidebar-search .pagefind-modular-filter-pill {
  font-size: 0.7rem;
  height: auto;
  padding: 0.2em 0.55em;
}
.sidebar-search .pagefind-modular-list-result {
  padding: 0;
  border: none;
}

/* ── Search results (custom resultTemplate) ──────────────── */
.search-result-item {
  list-style: none;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border-light);
}
.search-result-item:last-child { border-bottom: none; }
.search-result-link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
}
.search-result-link:hover .search-result-title { text-decoration: underline; }
.search-result-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-link);
}
.search-result-badges {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
}
.search-result-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0.25rem 0 0;
  line-height: 1.5;
}
.search-result-excerpt mark {
  background: var(--color-highlight);
  color: inherit;
  border-radius: 2px;
  padding: 0 0.1em;
}

/* ── Secondary button ─────────────────────────────────────── */
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-link);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  background: var(--color-border-light);
  color: var(--color-link-hover);
  text-decoration: none;
}