/* Dossier — marketing site stylesheet.
   Brand tokens from dossier-design/brand-board.html. Paper, folders, forest
   green: calm, organized, quietly Canadian. No red anywhere in the brand.
   The site uses a light palette regardless of system appearance. System type carried by
   weight and tracking — no custom fonts, no third-party resources. */

:root {
  --bg: #FFFFFF;
  --bg-soft: #F2F2F7;
  --card: #FFFFFF;
  --ink: #1B231D;
  --muted: #5B6A5F;
  --faint: #8A968D;
  --line: rgba(27, 35, 29, 0.14);
  --line-soft: rgba(27, 35, 29, 0.08);
  --accent: #15573B;
  --accent-ink: #15573B;
  --accent-contrast: #F2EDE0;
  --accent-wash: rgba(21, 87, 59, 0.08);
  --shelf: #EFE9DA;
  --paper: #F2EDE0;
  --paper-edge: #D9D0BC;
  --leaf: #58A075;
  --mint: #8FC3A6;
  --pine: #0B3A27;
  --warn-ink: #A05A00;
  --warn-wash: rgba(255, 149, 0, 0.14);
  --code-bg: rgba(27, 35, 29, 0.06);
  --shadow: 0 1px 2px rgba(27, 35, 29, 0.05), 0 12px 32px -16px rgba(27, 35, 29, 0.18);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --max: 72rem;
  --radius: 16px;
  color-scheme: light;
}


* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: var(--accent-contrast); }

a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

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

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; }

/* ---------- wordmark ---------- */

.wordmark {
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--ink);
}
.brand .maple-leaf {
  width: 15px;
  height: 15px;
  flex: none;
  margin-left: -0.25rem;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.25rem;
  text-decoration: none !important;
}
.brand svg { width: 34px; height: 26px; flex: none; }
.site-nav { display: flex; align-items: center; gap: 1.4rem; }
.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--ink); text-decoration: none; }
.site-nav a.lang {
  font-family: var(--mono);
  font-size: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
}
.site-nav .nav-cta {
  color: var(--accent-contrast);
  background: var(--accent);
  border-radius: 999px;
  padding: 0.4rem 0.95rem;
  font-weight: 600;
}
.site-nav .nav-cta:hover { color: var(--accent-contrast); filter: brightness(1.08); }
@media (max-width: 40rem) {
  .site-nav { gap: 0.9rem; }
  .site-nav .hide-sm { display: none; }
}

/* ---------- eyebrow / labels ---------- */

.eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 0 0 0.9rem;
}

.lineno {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent-ink);
  background: var(--accent-wash);
  border-radius: 6px;
  padding: 0.14rem 0.45rem;
  white-space: nowrap;
}

/* ---------- hero ---------- */

.hero { padding: 4.5rem 0 3.5rem; }
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 3.5rem;
  align-items: center;
}
@media (max-width: 56rem) {
  .hero { padding: 3rem 0 2.5rem; }
  .hero .wrap { grid-template-columns: 1fr; gap: 2.5rem; }
}

.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0 0 1.1rem;
}
.hero .lede {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--muted);
  max-width: 34em;
  margin: 0 0 1.8rem;
}

.store-cta { display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; }
.store-cta .badge img,
.store-cta .badge svg { height: 52px; width: auto; display: block; }
.store-cta .fine {
  font-size: 0.85rem;
  color: var(--faint);
  line-height: 1.45;
}

.hero-icon {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.6rem;
}
.hero-icon img {
  width: 76px;
  height: 76px;
  border-radius: 22.37%;
  box-shadow: var(--shadow);
  border: 1px solid var(--line-soft);
}

/* ---------- folder-tab cards ---------- */

.tab-card {
  --folder-fill: var(--paper);
  --folder-edge: var(--paper-edge);
  position: relative;
  background: var(--folder-fill);
  border: 1px solid var(--folder-edge);
  border-radius: 6px 14px 14px 14px;
  padding: 1.5rem 1.6rem;
  box-shadow: 0 3px 0 -1px var(--folder-fill),
              0 3px 0 0 var(--folder-edge),
              0 12px 24px -16px rgba(27, 35, 29, 0.28);
}
.tab-card::before {
  content: "";
  position: absolute;
  top: -19px;
  left: 0px;
  width: 104px;
  height: 20px;
  background: var(--folder-fill);
  border: 1px solid var(--folder-edge);
  border-bottom: none;
  border-radius: 10px 10px 0 0;
}
.tab-card.tab-leaf {
  --folder-fill: #DFEBDD;
  --folder-edge: #A6BDA4;
}
.tab-card.tab-mint {
  --folder-fill: #E5F0E9;
  --folder-edge: #B0C9B9;
}
.tab-card.tab-paper {
  --folder-fill: var(--paper);
  --folder-edge: var(--paper-edge);
}

/* ---------- hero receipt visual ---------- */

.receipt-demo { max-width: 24rem; margin: 0 auto; width: 100%; }
.receipt {
  font-family: var(--mono);
  font-size: 0.88rem;
  padding: 1.5rem 1.6rem 1.3rem;
}
.receipt .r-head {
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 0.9rem;
}
.receipt .r-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.26rem 0;
  color: var(--muted);
}
.receipt .r-row .v { color: var(--ink); }
.receipt .r-sep { border-top: 1px dashed var(--line); margin: 0.55rem 0; }
.receipt .r-total, .receipt .r-total .v { font-weight: 700; color: var(--ink); }
.receipt .r-file {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-top: 1.1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--line);
  font-family: var(--sans);
}
.stamp {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--accent-ink);
  border: 2px solid currentColor;
  border-radius: 10px;
  padding: 0.28rem 0.7rem;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.01em;
  transform: rotate(-4deg);
  white-space: nowrap;
}
.stamp svg { width: 18px; height: 18px; flex: none; }
.r-caption {
  text-align: center;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--faint);
  margin: 1rem 0 0;
}

/* ---------- sections ---------- */

.section { padding: 4rem 0; }
.section.alt { background: var(--bg-soft); border-block: 1px solid var(--line-soft); }
.section h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin: 0 0 0.7rem;
}
.section .section-lede { color: var(--muted); max-width: 44em; margin: 0 0 2.2rem; }

.grid { display: grid; gap: 1.4rem; }
/* Leave room for the raised tabs above each following row. */
.grid:has(> .tab-card) { row-gap: 3rem; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 56rem) {
  .grid.cols-3, .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 38rem) {
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
}

.feature h3 {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.05rem;
  letter-spacing: -0.015em;
  margin: 0 0 0.45rem;
}
.feature h3 svg { width: 20px; height: 20px; color: var(--accent-ink); flex: none; }
.feature p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* how it works */
.steps { counter-reset: step; }
.step { position: relative; padding-left: 0; }
.step .step-no {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent-ink);
  display: block;
  margin-bottom: 0.5rem;
}
.step h3 { font-size: 1.02rem; margin: 0 0 0.4rem; letter-spacing: -0.015em; }
.step p { margin: 0; color: var(--muted); font-size: 0.93rem; }

/* ---------- tax line cards ---------- */

.line-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  text-decoration: none !important;
  color: inherit;
  transition: transform 140ms ease, box-shadow 140ms ease;
}
.line-card:hover { transform: translateY(-3px); }
.line-card .line-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}
.line-card h3 { margin: 0; font-size: 1.05rem; letter-spacing: -0.015em; }
.line-card p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.line-card .more {
  margin-top: auto;
  padding-top: 0.4rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-ink);
}

/* ---------- T1 index (home § 03) ---------- */

.t1-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.4rem;
  margin: 0 0 2.4rem;
}
.t1-stat .n {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--accent-ink);
}
.t1-stat .l { font-size: 0.85rem; color: var(--muted); line-height: 1.45; }
@media (max-width: 38rem) {
  .t1-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.line-tape {
  display: grid;
  gap: 0.6rem;
  margin: 0 0 2.6rem;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.tape-row {
  display: flex;
  gap: 0.6rem;
  width: max-content;
  animation: tape 70s linear infinite;
}
.tape-row.reverse { animation-direction: reverse; }
@keyframes tape { to { transform: translateX(-50%); } }
.tape-chip {
  font-family: var(--mono);
  font-size: 0.78rem;
  white-space: nowrap;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
}
.tape-chip b { color: var(--accent-ink); font-weight: 600; }

.drawer { display: flex; flex-direction: column; gap: 0.6rem; }
.drawer-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.8rem;
}
.drawer h3 { margin: 0; font-size: 1.08rem; letter-spacing: -0.015em; }
.drawer .count {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-ink);
  background: var(--accent-wash);
  border-radius: 6px;
  padding: 0.14rem 0.5rem;
  white-space: nowrap;
}
.drawer p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.chip-row { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.55rem; }
.chip {
  font-family: var(--mono);
  font-size: 0.75rem;
  white-space: nowrap;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
}
.chip b { font-weight: 600; }
a.chip {
  color: var(--accent-ink);
  background: var(--accent-wash);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  transition: background 120ms ease, color 120ms ease;
}
a.chip:hover { background: var(--accent); color: var(--accent-contrast); text-decoration: none; }

.t1-index-cta {
  margin-top: 2.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.t1-index-cta p { margin: 0; color: var(--muted); font-size: 0.95rem; max-width: 38em; }
.btn-pill {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-contrast) !important;
  border-radius: 999px;
  padding: 0.55rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}
.btn-pill:hover { text-decoration: none; filter: brightness(1.08); }

/* ---------- checklist (seal bullets) ---------- */

.checklist { list-style: none; margin: 1.2rem 0; padding: 0; display: grid; gap: 0.75rem; }
.checklist li { position: relative; padding-left: 2.1rem; }
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18rem;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: var(--accent);
  -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><circle cx="12" cy="12" r="12" fill="white"/></svg>') center / contain no-repeat;
  mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><circle cx="12" cy="12" r="12" fill="white"/></svg>') center / contain no-repeat;
}
.checklist li::after {
  content: "";
  position: absolute;
  left: 0.31rem;
  top: 0.52rem;
  width: 0.72rem;
  height: 0.42rem;
  border-left: 2.5px solid var(--accent-contrast);
  border-bottom: 2.5px solid var(--accent-contrast);
  transform: rotate(-45deg);
}

/* ---------- notices ---------- */

.notice {
  background: var(--accent-wash);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 0.9rem 1.2rem;
  font-size: 0.95rem;
}
.notice.warn {
  background: var(--warn-wash);
  border-left-color: var(--warn-ink);
}
.notice.warn strong { color: var(--warn-ink); }
.notice p { margin: 0.3rem 0; }
.notice p:first-child { margin-top: 0; }
.notice p:last-child { margin-bottom: 0; }

/* disclaimer band */
.disclaimer-band {
  border-top: 1px solid var(--line-soft);
  background: var(--bg-soft);
  padding: 2.2rem 0;
}
.disclaimer-band .grid { gap: 1rem; }
.disclaimer-band h3 {
  font-size: 0.88rem;
  margin: 0 0 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.disclaimer-band p { margin: 0; font-size: 0.82rem; color: var(--muted); }

/* ---------- prose pages (legal, guide, tax lines) ---------- */

.page { padding: 3.5rem 0 4.5rem; }
.page .meta { color: var(--faint); font-size: 0.88rem; margin: 0.4rem 0 0; }
.page h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  letter-spacing: -0.028em;
  line-height: 1.12;
  margin: 0;
}
.prose { max-width: 46rem; }
.prose h2 { font-size: 1.35rem; letter-spacing: -0.02em; margin: 2.4rem 0 0.6rem; }
.prose h3 { font-size: 1.08rem; letter-spacing: -0.015em; margin: 1.8rem 0 0.5rem; }
.prose p, .prose li { color: var(--ink); }
.prose .lede { color: var(--muted); font-size: 1.1rem; }
.prose code { font-family: var(--mono); font-size: 0.88em; background: var(--code-bg); border-radius: 5px; padding: 0.1em 0.35em; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.prose th, .prose td { text-align: left; padding: 0.55rem 0.7rem; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.prose th { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.table-scroll { overflow-x: auto; }

.crumbs { font-size: 0.85rem; color: var(--faint); margin-bottom: 1.6rem; }
.crumbs a { color: var(--muted); }

/* fact box on line pages */
.factbox {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem;
  margin: 1.8rem 0;
}
.fact {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem 1rem;
}
.fact .k {
  display: block;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.25rem;
}
.fact .v { font-weight: 600; font-size: 0.98rem; }

/* CTA panel */
.cta-panel {
  margin-top: 3rem;
  background: var(--bg-soft);
  color: var(--ink);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 2.2rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.6rem;
  flex-wrap: wrap;
}
.cta-panel h2 { color: var(--ink); margin: 0 0 0.3rem; font-size: 1.45rem; letter-spacing: -0.02em; }
.cta-panel p { color: var(--muted); margin: 0; font-size: 0.95rem; max-width: 34em; }
.cta-panel .badge img { height: 48px; display: block; }

/* ---------- support / contact ---------- */

.contact-card {
  font-family: var(--mono);
  font-size: 0.92rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.3rem 1.5rem;
  display: grid;
  gap: 0.5rem;
  max-width: 30rem;
}
.contact-card .k { color: var(--faint); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; display: block; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 2.6rem 0 3rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.site-footer .footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
}
.footer-nav { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.footer-nav a { color: var(--muted); }
.footer-nav a:hover { color: var(--ink); }
.fineprint { font-size: 0.78rem; color: var(--faint); line-height: 1.6; max-width: 62rem; }

/* ---------- 404 ---------- */

.notfound { text-align: center; padding: 6rem 1.5rem; }
.notfound .code { font-family: var(--mono); font-size: 4rem; font-weight: 700; color: var(--accent-ink); }

/* ---------- motion ---------- */

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

/* Keep both platform download links together on desktop and mobile. */
.store-links { display: flex; align-items: center; flex-wrap: wrap; gap: 0.75rem; }
/* Official Google artwork includes its own clear space; preserve it intact. */
.store-links .badge { display: inline-flex; align-items: center; flex: none; }
.store-links .badge img { display: block; width: auto; height: 48px; }
.store-links .google-play-badge img { height: 70px; width: auto; }
#download { scroll-margin-top: 6rem; }

/* Actual launch screenshots, with equal space for both platforms. */
.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.4rem;
  margin-top: 2.5rem;
}
.app-screenshot { margin: 0; min-width: 0; }
.app-screenshot a {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 9 / 19.6; padding: 0.5rem;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 18px; box-shadow: var(--shadow);
}
.app-screenshot img { width: 100%; height: 100%; object-fit: contain; border-radius: 12px; }
.app-screenshot a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.app-screenshot figcaption { margin-top: 1rem; font-size: 0.9rem; font-weight: 600; }
.screenshot-platform { display: block; color: var(--accent); font-size: 0.75rem; margin-bottom: 0.25rem; }
.screenshot-note { color: var(--muted); font-size: 0.85rem; margin: 1.5rem 0 0; }
@media (max-width: 56rem) { .screenshot-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 30rem) { .screenshot-gallery { grid-template-columns: 1fr; max-width: 20rem; margin-inline: auto; gap: 2rem; } }

/* Show the Android screen inside the original Play Store artwork. */
.android-crop {
  position: relative; display: block; overflow: hidden;
  width: 100%; aspect-ratio: 714 / 1585; border-radius: 6.2% / 2.8%;
}
.app-screenshot .android-crop img {
  position: absolute; max-width: none; width: 151.2605%; height: auto;
  left: -25.6303%; top: -18.612%; border-radius: 0;
}
.android-crop-summary-en { aspect-ratio: 748 / 1661; }
.app-screenshot .android-crop-summary-en img {
  width: 144.385%; left: -22.1925%; top: -13.1848%;
}

.app-screenshot .android-crop img { filter: url(#android-screenshot-neutral); }

/* Long-form app Guide and its browsable reference library. */
.guide-article { max-width: 48rem; margin: 2rem 0; }
.article-breadcrumb { margin-bottom: 1rem; font-size: 0.9rem; }
.guide-books { margin: 3rem 0; }
.guide-books h2 { font-size: 1.2rem; margin: 0; }
.guide-reference { border-bottom: 1px solid var(--line); padding: 1rem 0; }
.guide-reference summary { cursor: pointer; font-weight: 600; color: var(--accent); }
.guide-reference ul, .book-reference-links { columns: 2; column-gap: 2rem; padding-left: 1.3rem; }
.guide-reference li, .book-reference-links li { break-inside: avoid; margin-bottom: 0.6rem; }
.source-links { overflow-wrap: anywhere; }
@media (max-width: 40rem) { .guide-reference ul, .book-reference-links { columns: 1; } }