html {
  scroll-padding-top: 92px;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(19, 19, 16, 0.96);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 70px;
  padding: 12px 0;
  flex-wrap: nowrap;
}

.nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 20px;
  min-width: 0;
}

.nav-meta {
  gap: 14px;
  min-width: 0;
}

.nav-meta a {
  white-space: nowrap;
}

.nav-meta a[aria-current="page"] {
  color: var(--accent);
  border-color: var(--accent);
}

.nav-meta .nav-integrators {
  border-left: 1px solid var(--rule-strong);
  padding-left: 14px;
}

.nav-app-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.context-cta {
  margin: 18px 0 0;
  color: var(--ink-3);
  font-size: 13px;
}

.context-cta a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-deep);
}

/* Strong tool CTA (a callout variant with an action button) */
.callout-cta { background: var(--bg-3); color: var(--ink); }
.callout-cta-row { margin-top: 14px; }
.callout-cta-row .nav-app-btn {
  display: inline-block;
  border-bottom: none;
  color: var(--ink-base);
  background: var(--accent);
  padding: 9px 16px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.callout-cta-row .nav-app-btn:hover { background: var(--accent-deep); }

.context-cta a:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.guide-links {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr));
}
/* Stack the eyebrow label above the title (was running inline into it) */
.guide-links .gl-k { display: block; }
.guide-links .gl-t { display: block; }

.guide-links a[aria-current="page"] {
  background: var(--bg-2);
  box-shadow: inset 0 3px 0 var(--accent);
  cursor: default;
}

.guide-links a[aria-current="page"] .gl-k,
.guide-links a[aria-current="page"] .gl-t {
  color: var(--accent);
}

.reference-wrap {
  max-width: 1280px;
}

.reference-layout {
  display: grid;
  grid-template-columns: minmax(240px, 280px) minmax(0, 760px);
  justify-content: center;
  align-items: start;
  gap: clamp(32px, 4vw, 64px);
}

.reference-rail {
  position: sticky;
  top: calc(var(--guide-header-height, 70px) + 20px);
  max-height: calc(100vh - var(--guide-header-height, 70px) - 40px);
  overflow-y: auto;
  padding: 0 10px 20px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--rule-strong) transparent;
}

.filter-panel {
  padding: 16px;
  background: var(--bg-2);
  border: 1px solid var(--rule-strong);
}

.filter-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 9px;
}

.filter-label,
.filter-count {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.filter-label {
  color: var(--ink-2);
}

.filter-count {
  color: var(--accent);
  white-space: nowrap;
}

.rule-filter {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  padding: 10px 11px;
  background: var(--bg);
  color: var(--ink);
  font: 13px/1.4 var(--sans);
  outline: none;
}

.rule-filter::placeholder {
  color: var(--ink-3);
}

.rule-filter:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(201, 227, 67, 0.12);
}

.jump-panel {
  margin-top: 24px;
}

.rail-heading {
  margin: 0 0 3px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.rail-note {
  margin: 0 0 8px;
  color: var(--ink-3);
  font-size: 12px;
}

.toc.rail-toc {
  grid-template-columns: 1fr;
  margin: 0;
}

.toc.rail-toc a {
  padding: 9px 11px;
  font-size: 12px;
  line-height: 1.35;
}

.tool-card {
  margin-top: 24px;
  padding: 16px;
  border: 1px solid var(--rule-strong);
  color: var(--ink-3);
  font-size: 12.5px;
  line-height: 1.55;
}

.tool-card p {
  margin: 0 0 10px;
}

.tool-card a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-strong);
}

.tool-card a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.rule-content,
.rule-copy {
  width: 100%;
  max-width: 760px;
  min-width: 0;
}

.rule-copy {
  margin-top: 0;
}

.rule-item .txt {
  max-width: 75ch;
  overflow-wrap: anywhere;
}

.rule-item {
  position: relative;
}

.rule-item > a[id] {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  scroll-margin-top: calc(var(--guide-header-height, 70px) + 16px);
  pointer-events: none;
}

.rule-section:first-child {
  margin-top: 0;
}

.no-filter-results {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--rule-strong);
  color: var(--ink-2);
}

.rule-item[hidden],
.rule-section[hidden],
.no-filter-results[hidden] {
  display: none !important;
}

@media (max-width: 999px) {
  html {
    scroll-padding-top: 126px;
  }

  .reference-layout {
    display: block;
  }

  .reference-rail {
    display: contents;
  }

  .filter-panel {
    position: sticky;
    top: var(--guide-header-height, 112px);
    z-index: 80;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 8px 14px;
    padding: 10px 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.24);
  }

  .filter-row {
    display: contents;
  }

  .filter-label {
    grid-column: 1;
  }

  .filter-count {
    grid-column: 1;
    grid-row: 2;
  }

  .rule-filter {
    grid-column: 2;
    grid-row: 1 / span 2;
    padding: 8px 10px;
  }

  .jump-panel {
    margin-top: 28px;
  }

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

  .tool-card {
    margin: 20px 0 36px;
  }
}

@media (max-width: 860px) {
  .nav {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 14px;
  }

  .nav-actions {
    display: contents;
  }

  .nav-meta {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .nav-meta::-webkit-scrollbar {
    display: none;
  }

  .nav-app-btn {
    grid-column: 2;
    grid-row: 1;
  }
}

@media (max-width: 640px) {
  .toc.rail-toc {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .wrap,
  .wrap.wide {
    padding-left: 16px;
    padding-right: 16px;
  }

  .logo {
    gap: 9px;
  }

  .logo-word {
    font-size: 18px;
  }

  .nav-app-btn {
    padding: 8px 11px;
    font-size: 10.5px;
  }

  .nav-meta {
    flex-wrap: wrap;
    gap: 13px;
    font-size: 10px;
    overflow-x: visible;
  }

  .nav-meta .nav-integrators {
    padding-left: 13px;
  }
}