:root {
  color-scheme: light dark;
  --page: #f5f7fb;
  --surface: #ffffff;
  --surface-subtle: #eef3f8;
  --ink: #172033;
  --muted: #536078;
  --line: #c9d3df;
  --brand: #124e78;
  --brand-strong: #0b3654;
  --brand-soft: #dceef8;
  --accent: #a63f17;
  --focus: #f5a623;
  --success: #176b45;
  --shadow: 0 12px 34px rgba(16, 35, 55, 0.1);
  --radius: 0.8rem;
  --content: 76rem;
  --measure: 72ch;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 100%;
  line-height: 1.6;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  min-width: 18rem;
  margin: 0;
  background: var(--page);
  color: var(--ink);
  text-rendering: optimizeLegibility;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--brand);
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.16em;
}

a:visited {
  color: #68418a;
}

a:hover {
  color: var(--accent);
  text-decoration-thickness: 0.16em;
}

:focus-visible {
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.18rem;
  border-radius: 0.15rem;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.7rem 1rem;
  transform: translateY(-160%);
  border: 0.15rem solid currentColor;
  border-radius: 0.4rem;
  background: var(--surface);
  color: var(--ink);
  font-weight: 800;
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  backdrop-filter: blur(0.7rem);
}

.site-header__inner {
  display: flex;
  max-width: var(--content);
  min-height: 4.5rem;
  margin: 0 auto;
  padding: 0.65rem 1.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 850;
  text-decoration: none;
}

.brand:visited {
  color: var(--ink);
}

.brand__mark {
  display: inline-grid;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 0.65rem;
  background: var(--brand);
  color: #ffffff;
  place-items: center;
  font-size: 1.2rem;
  font-weight: 900;
}

.utility-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.4rem 1rem;
}

.utility-nav a {
  font-size: 0.9rem;
  font-weight: 700;
}

.page-shell {
  display: grid;
  grid-template-columns: minmax(13rem, 17rem) minmax(0, 1fr);
  max-width: var(--content);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
  gap: 2.4rem;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 6rem;
  max-height: calc(100vh - 7.5rem);
  overflow: auto;
}

.chapter-nav {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.chapter-nav__title {
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.chapter-nav ol {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 0.22rem;
  list-style: none;
  counter-reset: guide-chapter;
}

.chapter-nav li {
  counter-increment: guide-chapter;
}

.chapter-nav a {
  display: grid;
  grid-template-columns: 1.7rem 1fr;
  padding: 0.5rem 0.55rem;
  border-radius: 0.4rem;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 650;
  line-height: 1.35;
  text-decoration: none;
}

.chapter-nav a::before {
  content: counter(guide-chapter);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.chapter-nav a:hover {
  background: var(--surface-subtle);
  color: var(--brand);
}

.chapter-nav a[aria-current="page"] {
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-weight: 800;
}

.guide-main {
  min-width: 0;
}

.breadcrumbs {
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.breadcrumbs ol {
  display: flex;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.35rem;
}

.guide-article,
.hero,
.chapter-browser,
.guide-paths {
  padding: clamp(1.25rem, 3vw, 2.8rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.guide-article > * {
  max-width: var(--measure);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  max-width: var(--measure);
  margin-top: 1.7em;
  margin-bottom: 0.55em;
  color: var(--ink);
  line-height: 1.2;
  scroll-margin-top: 6rem;
  text-wrap: balance;
}

h1 {
  margin-top: 0;
  font-size: clamp(2rem, 5vw, 3.35rem);
  letter-spacing: -0.035em;
}

h2 {
  padding-top: 0.35rem;
  border-top: 1px solid var(--line);
  font-size: clamp(1.45rem, 3vw, 2rem);
}

h3 {
  font-size: clamp(1.18rem, 2vw, 1.42rem);
}

h4,
h5,
h6 {
  font-size: 1.05rem;
}

p,
li,
dd,
td,
th {
  max-width: var(--measure);
}

p {
  margin-top: 0.65rem;
  margin-bottom: 1rem;
}

li + li {
  margin-top: 0.4rem;
}

.chapter-summary,
.hero__lede {
  color: var(--muted);
  font-size: clamp(1.06rem, 2vw, 1.25rem);
}

.chapter-meta,
.chapter-card__number,
.eyebrow {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.tool-reference-page {
  max-width: none;
}

.tool-reference-page > * {
  max-width: none;
}

.tool-reference-controls {
  margin: 1.5rem 0;
  padding: 1rem;
  border: 1px solid #9eb6c9;
  border-radius: 0.65rem;
  background: var(--surface-subtle);
}

.tool-reference-controls h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
  font-size: 1.35rem;
}

.tool-reference-controls__grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(12rem, 1fr);
  gap: 1rem;
}

.tool-reference-controls label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 750;
}

.tool-reference-controls input,
.tool-reference-controls select {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.55rem 0.7rem;
  border: 0.12rem solid #73869a;
  border-radius: 0.4rem;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}

.tool-reference-status {
  min-height: 1.5rem;
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-weight: 700;
}

.tool-reference-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.tool-reference-card {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  background: var(--surface);
}

.tool-reference-card[hidden] {
  display: none;
}

.tool-reference-card__heading {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
}

.tool-reference-card__icon {
  flex: 0 0 auto;
  font-size: 1.7rem;
  line-height: 1;
}

.tool-reference-card h2 {
  margin: 0;
  padding: 0;
  border-top: 0;
  font-size: 1.2rem;
}

.tool-reference-card__category {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.tool-reference-card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.75rem 0;
}

.tool-reference-chip {
  padding: 0.25rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-subtle);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.tool-reference-card__meta {
  margin: 0.75rem 0;
}

.tool-reference-card__meta > div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.55rem;
  padding: 0.3rem 0;
  border-top: 1px solid var(--line);
}

.tool-reference-card__meta dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.tool-reference-card__meta dd {
  margin: 0;
}
.section-nav {
  margin: 1.25rem 0 1.5rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: var(--surface-subtle);
}

.section-nav__title {
  margin: 0 0 0.45rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.section-nav ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding-left: 1.25rem;
  gap: 0.25rem 1.5rem;
}

.section-nav li {
  margin: 0;
  padding-left: 0.1rem;
}

.section-nav a {
  font-size: 0.92rem;
  font-weight: 700;
}
.chapter-cues,
.chapter-card__cues {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 1rem 0;
  gap: 0.65rem 1rem;
}

.chapter-cues > div,
.chapter-card__cues > div {
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: var(--surface-subtle);
}

.chapter-cues dt,
.chapter-card__cues dt {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.chapter-cues dd,
.chapter-card__cues dd {
  margin: 0.15rem 0 0;
  color: var(--ink);
  font-weight: 700;
}

.chapter-card__cues {
  grid-template-columns: 1fr;
  margin: 0.85rem 0 0;
  gap: 0.4rem;
}

.chapter-card__cues > div {
  padding: 0.5rem 0.65rem;
}
.guide-search {
  max-width: var(--measure);
  margin: 2rem 0;
  padding: 1.25rem;
  border: 1px solid #9eb6c9;
  border-radius: 0.65rem;
  background: var(--surface-subtle);
}

.guide-search h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
  font-size: 1.35rem;
}

.guide-search__form label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 750;
}

.guide-search__controls {
  display: flex;
  gap: 0.55rem;
}

.guide-search input {
  width: 100%;
  min-height: 2.8rem;
  padding: 0.55rem 0.75rem;
  border: 0.12rem solid #73869a;
  border-radius: 0.4rem;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}

button,
.button {
  display: inline-flex;
  min-height: 2.75rem;
  padding: 0.6rem 1rem;
  border: 0.12rem solid var(--brand);
  border-radius: 0.42rem;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  color: var(--brand);
  font: inherit;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
}

button:hover,
.button:hover {
  background: var(--brand-soft);
  color: var(--brand-strong);
}

.button--primary,
.guide-search button {
  background: var(--brand);
  color: #ffffff;
}

.button--primary:visited {
  color: #ffffff;
}

.button--primary:hover,
.guide-search button:hover {
  background: var(--brand-strong);
  color: #ffffff;
}

.guide-search__status {
  min-height: 1.6rem;
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
}

.guide-search__results ol {
  display: grid;
  margin: 0.85rem 0 0;
  padding: 0;
  gap: 0.65rem;
  list-style: none;
}

.guide-search__result {
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 0.48rem;
  background: var(--surface);
}

.guide-search__result a {
  font-weight: 800;
}

.guide-search__result small {
  display: block;
  color: var(--muted);
}

.guide-search__result p {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
}

.search-no-script {
  margin-top: 0.8rem;
  padding: 0.75rem;
  border-left: 0.25rem solid var(--accent);
  background: var(--surface);
}

.hero {
  overflow: hidden;
  background:
    linear-gradient(135deg, var(--surface) 0%, var(--brand-soft) 100%);
}

.hero__actions {
  display: flex;
  margin-top: 1.4rem;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.guide-paths {
  margin-top: 1.5rem;
}

.guide-paths > h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.guide-paths__lede {
  max-width: var(--measure);
  color: var(--muted);
}

.guide-path-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.guide-path-card {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  background: var(--surface-subtle);
}

.guide-path-card h3 {
  margin: 0.1rem 0 0.5rem;
}

.guide-path-card p {
  margin-bottom: 0.65rem;
}

.guide-path-card__label {
  margin: 0.9rem 0 0.25rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.guide-path-card__links {
  margin: 0;
  padding-left: 1.3rem;
}

.guide-path-card__links li + li {
  margin-top: 0.25rem;
}

.chapter-browser {
  margin-top: 1.5rem;
}

.chapter-browser > h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.chapter-card {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
}

.chapter-card h3 {
  margin: 0.2rem 0 0.5rem;
}

.chapter-card p:last-child {
  margin-bottom: 0;
}

blockquote {
  margin: 1.3rem 0;
  padding: 0.2rem 1rem;
  border-left: 0.3rem solid var(--brand);
  background: var(--surface-subtle);
}

code,
kbd {
  padding: 0.08em 0.3em;
  border: 1px solid var(--line);
  border-radius: 0.25rem;
  background: var(--surface-subtle);
  color: var(--ink);
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.92em;
}

pre {
  max-width: 100%;
  padding: 1rem;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--surface-subtle);
}

pre code {
  padding: 0;
  border: 0;
  background: transparent;
}

.table-scroll {
  max-width: 100%;
  margin: 1.25rem 0;
  overflow-x: auto;
}

.table-scroll:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.table-scroll table {
  display: table;
  width: max-content;
  min-width: 100%;
  margin: 0;
  overflow: visible;
  border-collapse: collapse;
}

th,
td {
  min-width: 9rem;
  padding: 0.65rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-subtle);
}

hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.chapter-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 1.25rem;
  gap: 1rem;
}

.chapter-pager a {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: var(--surface);
  font-weight: 750;
  text-decoration: none;
}

.chapter-pager a span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.chapter-pager__next {
  text-align: right;
}

.offline-chapter {
  margin-top: 2rem;
  break-before: page;
}

.site-footer {
  max-width: var(--content);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0.25rem 0;
}

@media (max-width: 54rem) {
  .site-header {
    position: static;
  }

  .site-header__inner,
  .utility-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-shell {
    grid-template-columns: 1fr;
    padding-top: 1rem;
  }

  .sidebar {
    position: static;
    max-height: none;
  }

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

@media (max-width: 38rem) {
  .page-shell {
    padding-inline: 0.7rem;
  }

  .guide-article,
  .hero,
  .chapter-browser {
    padding: 1rem;
  }

  .chapter-nav ol,
  .chapter-grid,
  .guide-path-grid,
  .section-nav ol,
  .chapter-cues,
  .tool-reference-grid,
  .chapter-pager {
    grid-template-columns: 1fr;
  }

  .guide-search__controls,
  .tool-reference-controls__grid {
    align-items: stretch;
    flex-direction: column;
  }

  .chapter-pager__next {
    text-align: left;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0f1723;
    --surface: #172131;
    --surface-subtle: #202d40;
    --ink: #edf4fc;
    --muted: #bdc9d7;
    --line: #485a70;
    --brand: #8bc8ed;
    --brand-strong: #d0ecff;
    --brand-soft: #243e51;
    --accent: #ffad86;
    --focus: #ffd166;
    --shadow: 0 12px 34px rgba(0, 0, 0, 0.32);
  }

  a:visited {
    color: #d9b7f0;
  }

  .brand__mark {
    background: #d0ecff;
    color: #10273a;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  :focus-visible {
    outline: 0.2rem solid Highlight;
  }

  .brand__mark,
  .button--primary,
  .guide-search button {
    border: 1px solid ButtonText;
    background: ButtonFace;
    color: ButtonText;
  }

  .chapter-nav a[aria-current="page"] {
    border: 1px solid Highlight;
  }
}

/* ── Read aloud (2026-08-17) ───────────────────────────────────────────
   Injected by guide-search.js only when the browser has a speech engine, so
   these rules simply never match otherwise. Uses the guide's own tokens so it
   follows every theme, including the print overrides below. */
/* A quiet 1.4rem icon rather than a labelled pill: one per heading, the
   labelled version competed with the heading text it sat beside. The
   accessible name stays in aria-label, so a screen reader loses nothing.
   Deliberately always visible — revealing it on :hover would be mouse-only. */
.listen-btn {
  margin-left: 0.55rem;
  vertical-align: middle;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 1.4rem;
  flex: none;
  padding: 0;
  font: 400 0.7rem/1 inherit;
  letter-spacing: normal;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.listen-btn:hover { background: var(--brand-soft); border-color: var(--brand); }
.listen-btn:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }
.listen-btn[aria-pressed="true"] { background: var(--brand-soft); border-color: var(--brand); }
.is-reading {
  background: var(--brand-soft);
  box-shadow: 0 0 0 4px var(--brand-soft);
  border-radius: 3px;
}

/* ── Reading tools (2026-08-17) ────────────────────────────────────────
   The controls AlloFlow injects into its HTML exports (view_pdf_audit_source
   :: _wrapAsReaderApp), sharing the same localStorage key so a teacher's
   preferences carry from an exported handout to the guide. The toggle joins
   the existing sticky header rather than adding a second sticky bar; the
   panel is a header row that exists only while open, so a collapsed bar
   costs no vertical space. Injected by script — never dead UI without JS. */
.rtools-toggle {
  font: 700 0.78rem/1 inherit;
  color: var(--brand-strong);
  background: var(--brand-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  white-space: nowrap;
}
.rtools-toggle:hover { border-color: var(--brand); }
.rtools-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  align-items: center;
  padding: 0.5rem clamp(1rem, 4vw, 2.5rem);
  border-top: 1px solid var(--line);
  font: 600 0.78rem/1 inherit;
  color: var(--muted);
  letter-spacing: normal;
}
.rtools-panel[hidden] { display: none; }
.rtools-panel label { display: inline-flex; align-items: center; gap: 0.35rem; white-space: nowrap; }
.rtools-panel select,
.rtools-panel input[type="range"],
.rtools-panel button { font: inherit; }
.rtools-panel select {
  color: var(--ink);
  background: var(--page);
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  padding: 0.2rem 0.3rem;
}
.rtools-panel input[type="range"] { width: 5.5rem; accent-color: var(--brand); padding: 0; }
.rtools-panel button {
  color: var(--ink);
  background: var(--page);
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  padding: 0.3rem 0.55rem;
  cursor: pointer;
}
.rtools-panel button[aria-pressed="true"] {
  background: var(--brand-soft);
  border-color: var(--brand);
  color: var(--brand-strong);
}
.rtools-panel :focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }
#rtools-ruler {
  position: fixed;
  left: 0;
  width: 100%;
  height: 2.4em;
  background: rgba(250, 204, 21, 0.16);
  border-top: 2px solid rgba(250, 204, 21, 0.65);
  border-bottom: 2px solid rgba(250, 204, 21, 0.65);
  pointer-events: none;
  z-index: 19;
  display: none;
}
html[data-allo-ruler="1"] #rtools-ruler { display: block; }

/* Reading themes retint the guide's OWN tokens, so every card, table, callout
   and code span follows the theme instead of being stranded on a new page
   colour. `html:root[…]` is (0,2,1), which beats both the (0,1,0) dark-mode
   block and the (0,1,0) print block — hence the explicit print reset below,
   which matches on specificity and wins on source order. */
html:root[data-allo-theme="warm"]{--page:#fdf3dd;--surface:#fffcf3;--surface-subtle:#f7ecd5;--ink:#432c10;--muted:#6d5030;--line:#e6d3ae;--brand:#8a3a12;--brand-strong:#6f2d0e;--brand-soft:#fbeadb;--accent:#9a3412;--success:#3f6212;--shadow:0 12px 34px rgba(87,58,28,.12);}
html:root[data-allo-theme="sepia"]{--page:#f4ecd8;--surface:#fdf8ec;--surface-subtle:#f0e6d0;--ink:#3f2d18;--muted:#6b5138;--line:#ddcdb0;--brand:#7d4419;--brand-strong:#653713;--brand-soft:#f7edda;--accent:#8a4b1e;--success:#3f6212;--shadow:0 12px 34px rgba(92,64,51,.12);}
html:root[data-allo-theme="dark"]{--page:#12121f;--surface:#1e1e33;--surface-subtle:#242440;--ink:#f1f5fb;--muted:#b6c2d6;--line:#343a55;--brand:#8ab4ff;--brand-strong:#c4d9ff;--brand-soft:#1c2947;--accent:#f0a882;--focus:#f5a623;--success:#7fd6a8;--shadow:0 12px 34px rgba(0,0,0,.45);}
html:root[data-allo-theme="highContrast"]{--page:#000;--surface:#000;--surface-subtle:#000;--ink:#ff0;--muted:#ff0;--line:#ff0;--brand:#ff0;--brand-strong:#ff0;--brand-soft:#000;--accent:#ff0;--focus:#fff;--success:#ff0;--shadow:none;}
html:root[data-allo-theme="blue"]{--page:#d9e9f6;--surface:#f0f7fd;--surface-subtle:#e2eff9;--ink:#0d1f2e;--muted:#3b4f62;--line:#b2cfe5;--brand:#0b4f7a;--brand-strong:#083b5c;--brand-soft:#e4f0fa;--accent:#8a3a12;--success:#155e40;--shadow:0 12px 34px rgba(27,38,49,.12);}
html:root[data-allo-theme="green"]{--page:#e6f4e7;--surface:#f4fbf5;--surface-subtle:#ecf7ed;--ink:#0f3016;--muted:#38603c;--line:#c0dfc3;--brand:#155e20;--brand-strong:#0f4417;--brand-soft:#e9f6ea;--accent:#8a3a12;--success:#155e40;--shadow:0 12px 34px rgba(27,94,32,.12);}
html:root[data-allo-theme="rose"]{--page:#fbe2ea;--surface:#fef3f7;--surface-subtle:#fbe8ef;--ink:#4f0a29;--muted:#7d3557;--line:#f0c0d2;--brand:#9d1148;--brand-strong:#7c0d38;--brand-soft:#fceaf1;--accent:#8a3a12;--success:#155e40;--shadow:0 12px 34px rgba(124,13,71,.12);}
html:root[data-allo-theme="easyread"]{--page:#faf8ef;--surface:#fffefa;--surface-subtle:#f3f0e2;--ink:#18202f;--muted:#4c5870;--line:#e2ddc8;--brand:#124e78;--brand-strong:#0b3654;--brand-soft:#e7f1f8;--accent:#a63f17;--success:#155e40;--shadow:0 12px 34px rgba(38,50,74,.1);}

@media print {
  /* Reading tools are screen affordances, and a chosen theme must not reach
     paper — dark or high contrast would print light text on white. Same
     (0,2,1) specificity as the theme rules, later in source, so it wins. */
  .rtools-toggle,
  .rtools-panel,
  #rtools-ruler { display: none !important; }
  html:root[data-allo-theme] {
    --page: #ffffff;
    --surface: #ffffff;
    --surface-subtle: #f4f4f4;
    --ink: #000000;
    --muted: #333333;
    --line: #777777;
    --brand: #000000;
    --brand-strong: #000000;
    --brand-soft: #ffffff;
    --accent: #000000;
    --success: #000000;
    --shadow: none;
  }

  /* The listen control and its highlight are screen affordances. */
  .listen-btn { display: none !important; }
  .is-reading { background: none !important; box-shadow: none !important; }

  :root {
    color-scheme: light;
    --page: #ffffff;
    --surface: #ffffff;
    --surface-subtle: #f4f4f4;
    --ink: #000000;
    --muted: #333333;
    --line: #777777;
    --brand: #000000;
    --shadow: none;
  }

  @page {
    margin: 0.65in;
  }

  body {
    font-size: 10.5pt;
  }

  .skip-link,
  .site-header,
  .sidebar,
  .guide-search,
  .chapter-pager,
  .site-footer,
  .hero__actions,
  .breadcrumbs,
  /* On-page navigation is for scrolling; paper readers scan headings. On the
     quick-reference "print this" page the box was a third of page one. */
  .section-nav,
  .chapter-nav {
    display: none !important;
  }

  /* The print block above removes screen max-widths, which let wide table
     cells run past the page edge (the keys table clipped mid-sentence, caught
     by a print-media screenshot 2026-08-16). Same fix as the export handouts:
     let tables shrink to the page and cells wrap anywhere. */
  table {
    width: 100% !important;
    table-layout: auto;
  }

  td,
  th {
    overflow-wrap: anywhere;
    hyphens: auto;
  }

  .page-shell {
    display: block;
    max-width: none;
    padding: 0;
  }

  .guide-article,
  .hero,
  .chapter-browser {
    padding: 0;
    border: 0;
    box-shadow: none;
  }

  .guide-article > *,
  p,
  li,
  dd,
  td,
  th {
    max-width: none;
  }

  a {
    color: #000000;
    text-decoration: underline;
  }

  a[href^="http"]::after,
  a[href^="mailto"]::after {
    content: " (" attr(href) ")";
    overflow-wrap: anywhere;
    font-size: 0.85em;
  }

  h1,
  h2,
  h3,
  h4 {
    break-after: avoid-page;
  }

  p,
  li,
  table,
  blockquote {
    orphans: 3;
    widows: 3;
  }

  table {
    display: table;
    width: 100%;
  }

  pre,
  table,
  blockquote {
    break-inside: avoid;
  }

  .offline-chapter {
    break-before: page;
  }
}

/* The catalog card offers up to two actions. Opening the tool is the primary
   one; the weight difference keeps the pair from reading as a single link. */
.tool-reference-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem;
}
.tool-reference-card__launch {
  font-weight: 700;
}