/* ============================================
   iDataGear · help.css
   Shared styles for the per-app help, privacy and
   contact pages under /chinese/, /cantonese/, /english/.

   Loaded AFTER assets/css/style.css and driven entirely by
   its design tokens, so both themes work with no extra rules.
   ============================================ */

/* === Page shell === */

/* The shared mobile nav (style.css, max-width:960px) is position:fixed, full
   width, parked off-screen with transform: translateX(100%). Because the
   header's backdrop-filter makes the header that fixed element's containing
   block, it escapes `body { overflow-x: hidden }` and drags the document to
   exactly 2x the viewport width — a real horizontal scrollbar on phones.
   Clipping at the root contains it without creating a scroll container, so
   the sticky header and the fixed nav both keep working. */
html { overflow-x: clip; }

/* Narrow, readable column for prose pages (privacy, contact). */
.prose {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1rem, 5vw, 3rem);
}

.prose h2 {
  font-size: clamp(1.3rem, 2.6vw, 1.6rem);
  font-weight: 750;
  letter-spacing: -0.015em;
  margin: 2.6rem 0 0.9rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--card-border);
}

.prose h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 1.8rem; }

.prose h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin: 1.6rem 0 0.5rem;
  color: var(--text);
}

.prose p,
.prose li { color: var(--muted); }
.prose strong { color: var(--text); font-weight: 650; }
.prose ul { margin: 0 0 1rem; display: grid; gap: 0.4rem; }
.prose a:not(.btn) {
  color: var(--accent-4);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--jade-border);
}
.prose a:not(.btn):hover { text-decoration-color: currentColor; }

.page-title {
  font-size: clamp(2rem, 5vw, 2.9rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0.5rem 0 0.7rem;
}

.page-lede {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 62ch;
}

.updated {
  color: var(--dim);
  font-size: 0.85rem;
  margin: 0 0 2rem;
}

/* Breadcrumb / back link above the title. */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  color: var(--dim);
  margin-bottom: 1.2rem;
}
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent-4); }
.crumbs .sep { opacity: 0.5; }

/* === App hero === */

.app-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(1.25rem, 4vw, 2.5rem);
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1rem, 5vw, 5rem) clamp(1.5rem, 3vw, 2.5rem);
  max-width: 1280px;
  margin: 0 auto;
}

.app-hero__icon {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  box-shadow: var(--shadow);
  border: 1px solid var(--card-border);
  flex: none;
}

.app-hero__body { flex: 1 1 22rem; min-width: 0; }

.app-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  margin-top: 1.4rem;
}

.play-badge { height: 48px; width: auto; }

/* === Screenshot figures === */

.shot {
  margin: 0;
  min-width: 0;
}

.shot img {
  width: 100%;
  max-width: 270px;
  border-radius: 20px;
  border: 1px solid var(--card-border);
  background: var(--card);
  box-shadow: var(--shadow);
}

.shot figcaption {
  color: var(--dim);
  font-size: 0.8rem;
  margin-top: 0.6rem;
  max-width: 270px;
}

/* Responsive gallery of screenshots. */
.shot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
}

/* === Screen-by-screen tour === */

.tour {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
}

.tour-step {
  display: grid;
  grid-template-columns: minmax(0, 270px) minmax(0, 1fr);
  gap: clamp(1.25rem, 4vw, 2.5rem);
  align-items: start;
}

/* Alternate the image side on wide screens for rhythm. */
@media (min-width: 900px) {
  .tour-step:nth-child(even) { grid-template-columns: minmax(0, 1fr) minmax(0, 270px); }
  .tour-step:nth-child(even) .shot { order: 2; }
}

.tour-step__body { min-width: 0; padding-top: 0.25rem; }

.tour-step__body h3 {
  font-size: 1.25rem;
  font-weight: 750;
  letter-spacing: -0.015em;
  margin: 0.5rem 0 0.7rem;
}

.tour-step__body p { color: var(--muted); }

.tour-step__path {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--azure-fg);
  background: var(--azure-bg);
  border: 1px solid var(--azure-border);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.7rem;
}

@media (max-width: 640px) {
  .tour-step { grid-template-columns: 1fr; justify-items: start; }
}

/* === Numbered walkthroughs === */

.walkthrough {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  background: var(--card);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.walkthrough h3 {
  font-size: 1.1rem;
  font-weight: 750;
  margin: 0 0 1rem;
}

.walkthrough ol {
  margin: 0;
  padding-left: 1.3rem;
  display: grid;
  gap: 0.55rem;
  color: var(--muted);
}

.walkthrough ol li::marker { color: var(--accent-4); font-weight: 700; }
.walkthrough strong { color: var(--text); font-weight: 650; }

.walkthrough-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1.25rem;
}

/* === Data tables (content counts, web vs Android) === */

.table-scroll { overflow-x: auto; }

.spec-table {
  width: 100%;
  min-width: 32rem;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.spec-table caption {
  text-align: left;
  color: var(--dim);
  font-size: 0.85rem;
  padding-bottom: 0.75rem;
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--card-border);
  vertical-align: top;
}

.spec-table thead th {
  color: var(--text);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  border-bottom-color: var(--card-border-hov);
}

.spec-table tbody th { color: var(--text); font-weight: 600; }
.spec-table td { color: var(--muted); }
.spec-table tbody tr:last-child th,
.spec-table tbody tr:last-child td { border-bottom: 0; }

.spec-table .num {
  font-variant-numeric: tabular-nums;
  color: var(--text);
  font-weight: 650;
  white-space: nowrap;
}

.yes { color: var(--jade-fg); font-weight: 650; }
.no  { color: var(--dim); }

/* === Callouts === */

.callout {
  border: 1px solid var(--jade-border);
  background: var(--jade-bg);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.callout p:last-child { margin-bottom: 0; }
.callout strong { color: var(--text); }

.callout-warn {
  border-color: var(--ochre-border);
  background: var(--ochre-bg);
}

.callout-note {
  border-color: var(--azure-border);
  background: var(--azure-bg);
}

/* === Cross-links between the pages of one app === */

.page-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 2rem;
}

/* === Closing call to action === */

.cta-band {
  text-align: center;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  background: var(--card);
  padding: clamp(2rem, 5vw, 3rem);
}

.cta-band h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.7rem;
}

.cta-band p {
  color: var(--muted);
  max-width: 52ch;
  margin-inline: auto;
}

.cta-band .app-hero__actions { justify-content: center; }

/* === Footer variant for these pages === */

.site-footer .footer-simple {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2.5rem clamp(1rem, 5vw, 5rem);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.86rem;
}

.site-footer .footer-simple nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
}

.site-footer .footer-simple a:hover { color: var(--text); }
.site-footer .footer-simple p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  .btn:hover, .btn:focus-visible { transform: none; }
}