html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }

/* Brand tokens — match tailwind-config.js */
:root {
  --trust-50: #EFF6FF;
  --trust-100: #DBEAFE;
  --trust-200: #BFDBFE;
  --trust-600: #0A66C2;
  --trust-700: #0852A1;
  --trust-900: #062D5A;
  --trust-950: #031A37;
  --spark-50: #F1EFFF;
  --spark-100: #E3DFFF;
  --spark-500: #6B5CFF;
  --spark-600: #5645E6;
  --warm-100: #FFEFE2;
  --border-subtle: #E8E8E8;
  --text-body: #333;
  --text-muted: #666;
  --radius-card: 0.5rem;
  --radius-pill: 1.5rem;
}

/* ── Site themes: Daylight & Twilight (shared across all pages) ── */
:root,
html[data-theme="daylight"] {
  --home-canvas: linear-gradient(145deg, #dbeafe 0%, #ede9fe 38%, #ffefe2 72%, #e0f2fe 100%);
  --home-mesh:
    radial-gradient(ellipse 55% 45% at 8% 12%, rgba(107, 92, 255, 0.38), transparent 55%),
    radial-gradient(ellipse 50% 40% at 92% 8%, rgba(10, 102, 194, 0.32), transparent 50%),
    radial-gradient(ellipse 60% 50% at 78% 88%, rgba(247, 166, 114, 0.28), transparent 55%),
    radial-gradient(ellipse 45% 35% at 22% 78%, rgba(139, 122, 255, 0.22), transparent 50%);
  --home-grid: rgba(10, 102, 194, 0.045);
  --home-glass: rgba(255, 255, 255, 0.72);
  --home-glass-border: rgba(219, 234, 254, 0.7);
  --home-panel: linear-gradient(145deg, rgba(255, 255, 255, 0.5) 0%, rgba(237, 233, 254, 0.42) 42%, rgba(219, 234, 254, 0.46) 100%);
  --home-panel-border: rgba(255, 255, 255, 0.38);
  --home-panel-shadow: 0 10px 24px -14px rgba(10, 102, 194, 0.12);
  --home-text: #031A37;
  --home-heading: #062D5A;
  --home-text-soft: rgba(6, 45, 90, 0.82);
  --home-text-muted: rgba(6, 45, 90, 0.72);
  --home-nav-panel: rgba(255, 255, 255, 0.96);
  --home-nav-panel-border: rgba(10, 102, 194, 0.12);
  --home-chip-bg: rgba(255, 255, 255, 0.65);
  --home-chip-border: rgba(10, 102, 194, 0.12);
  --home-badge-bg: rgba(255, 255, 255, 0.82);
  --home-badge-border: rgba(10, 102, 194, 0.18);
  --home-cta-secondary-bg: rgba(255, 255, 255, 0.85);
  --home-cta-secondary-border: #BFDBFE;
  --home-theme-color: #0A66C2;
  --home-glass-inset: rgba(255, 255, 255, 0.35);
  --home-depth-ambient: 0 1px 2px rgba(10, 102, 194, 0.04), 0 4px 12px -6px rgba(10, 102, 194, 0.07);
  --home-depth-hover: 0 12px 28px -10px rgba(10, 102, 194, 0.16), 0 4px 12px -6px rgba(107, 92, 255, 0.08);
  --home-depth-active: 0 18px 36px -12px rgba(10, 102, 194, 0.22), 0 6px 16px -8px rgba(107, 92, 255, 0.12);
  --home-prose: #333;
  --home-prose-soft: #444;
  --home-prose-muted: #666;
  --home-divider: #F0F0F0;
  --home-sidebar-hover: #F3F2EF;
  --home-sidebar-active: #EFF6FF;
}

html[data-theme="twilight"] {
  --home-canvas: linear-gradient(155deg, #0f172a 0%, #1e1b4b 32%, #312e81 58%, #1e3a5f 100%);
  --home-mesh:
    radial-gradient(ellipse 50% 42% at 12% 18%, rgba(99, 102, 241, 0.45), transparent 55%),
    radial-gradient(ellipse 45% 38% at 88% 12%, rgba(56, 189, 248, 0.28), transparent 50%),
    radial-gradient(ellipse 55% 48% at 75% 85%, rgba(167, 139, 250, 0.32), transparent 55%),
    radial-gradient(ellipse 40% 32% at 25% 75%, rgba(14, 165, 233, 0.2), transparent 50%);
  --home-grid: rgba(148, 163, 184, 0.08);
  --home-glass: rgba(15, 23, 42, 0.72);
  --home-glass-border: rgba(255, 255, 255, 0.08);
  --home-panel: linear-gradient(145deg, rgba(255, 255, 255, 0.07) 0%, rgba(99, 102, 241, 0.1) 45%, rgba(30, 58, 95, 0.16) 100%);
  --home-panel-border: rgba(255, 255, 255, 0.1);
  --home-panel-shadow: 0 10px 24px -14px rgba(0, 0, 0, 0.28);
  --home-text: #e2e8f0;
  --home-heading: #f1f5f9;
  --home-text-soft: rgba(226, 232, 240, 0.82);
  --home-text-muted: rgba(203, 213, 225, 0.72);
  --home-nav-panel: rgba(15, 23, 42, 0.96);
  --home-nav-panel-border: rgba(255, 255, 255, 0.1);
  --home-chip-bg: rgba(255, 255, 255, 0.08);
  --home-chip-border: rgba(255, 255, 255, 0.14);
  --home-badge-bg: rgba(255, 255, 255, 0.1);
  --home-badge-border: rgba(255, 255, 255, 0.18);
  --home-cta-secondary-bg: rgba(255, 255, 255, 0.08);
  --home-cta-secondary-border: rgba(255, 255, 255, 0.18);
  --home-theme-color: #312e81;
  --home-glass-inset: rgba(255, 255, 255, 0.12);
  --home-depth-ambient: 0 1px 2px rgba(0, 0, 0, 0.12), 0 4px 12px -6px rgba(0, 0, 0, 0.18);
  --home-depth-hover: 0 12px 28px -10px rgba(0, 0, 0, 0.32), 0 4px 12px -6px rgba(99, 102, 241, 0.14);
  --home-depth-active: 0 18px 36px -12px rgba(0, 0, 0, 0.4), 0 6px 16px -8px rgba(99, 102, 241, 0.2);
  --home-prose: rgba(226, 232, 240, 0.92);
  --home-prose-soft: rgba(203, 213, 225, 0.88);
  --home-prose-muted: rgba(148, 163, 184, 0.9);
  --home-divider: rgba(255, 255, 255, 0.1);
  --home-sidebar-hover: rgba(255, 255, 255, 0.06);
  --home-sidebar-active: rgba(99, 102, 241, 0.18);
}

html[data-theme="twilight"] body {
  color: var(--home-text);
}
html[data-theme="twilight"] ::selection {
  background: #4338ca;
  color: #f8fafc;
}

/* Twilight — shared text & nav (all pages, not just homepage) */
html[data-theme="twilight"] header .text-trust-900 { color: #f1f5f9; }
html[data-theme="twilight"] header .text-trust-600,
html[data-theme="twilight"] header .text-spark-600 { color: #a99cff; }
html[data-theme="twilight"] .text-trust-950,
html[data-theme="twilight"] .text-trust-900,
html[data-theme="twilight"] .font-display.text-trust-950 { color: var(--home-heading) !important; }
html[data-theme="twilight"] .text-trust-800\/85,
html[data-theme="twilight"] .text-trust-900\/80,
html[data-theme="twilight"] .text-trust-800 { color: var(--home-text-soft) !important; }
html[data-theme="twilight"] .text-trust-700,
html[data-theme="twilight"] .text-trust-600,
html[data-theme="twilight"] .text-trust-500 { color: var(--home-text-muted) !important; }
html[data-theme="twilight"] .text-spark-600 { color: #a99cff !important; }
html[data-theme="twilight"] .text-emerald-600 { color: #6ee7b7 !important; }
html[data-theme="twilight"] .page-detail-search-label { color: #93c5fd; }
html[data-theme="twilight"] .page-detail-search-input { color: var(--home-heading); background: var(--home-glass); border-color: var(--home-glass-border); }
html[data-theme="twilight"] .page-topic-cat { color: var(--home-text-muted); }
html[data-theme="twilight"] .page-topic-cat.is-active { color: #93c5fd; }
html[data-theme="twilight"] .connect-flow-caption { color: var(--home-text-muted); }
html[data-theme="twilight"] .connect-flow-node strong { color: var(--home-heading); }
html[data-theme="twilight"] .why-benefits-col h3 { color: var(--home-text-muted); }

/* Theme toggle — header on all pages */
.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 9999px;
  background: var(--home-chip-bg, rgba(255, 255, 255, 0.65));
  border: 1px solid var(--home-chip-border, rgba(10, 102, 194, 0.12));
}
.theme-switch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: 9999px;
  background: transparent;
  color: var(--home-text-muted, #666);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}
.theme-switch-btn svg { width: 1rem; height: 1rem; }
.theme-switch-btn:hover { color: var(--home-heading, #062D5A); }
.theme-switch-btn.is-active {
  background: var(--trust-600);
  color: #fff;
  box-shadow: var(--home-depth-ambient);
}
html[data-theme="twilight"] .theme-switch-btn.is-active {
  background: rgba(99, 102, 241, 0.85);
}
.theme-switch-btn:focus-visible {
  outline: 2px solid var(--spark-500);
  outline-offset: 2px;
}
.theme-switch--floating {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 200;
  box-shadow: var(--home-depth-hover);
}

/* Shared primary CTA — homepage + subpages */
.site-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--trust-600);
  background: var(--trust-600);
  padding: 0.5rem 1.125rem;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
.site-cta:hover {
  background: var(--trust-700);
  box-shadow: 0 4px 14px -4px rgba(10, 102, 194, 0.45);
}
.site-cta:focus-visible {
  outline: 3px solid var(--spark-500);
  outline-offset: 3px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}
:focus-visible { outline: 3px solid #6B5CFF; outline-offset: 3px; border-radius: 6px; }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Mobile navigation */
.nav-menu-toggle {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid #E8E8E8;
  border-radius: 0.5rem;
  background: #fff;
  color: #062D5A;
  cursor: pointer;
  flex-shrink: 0;
}
.nav-menu-toggle:hover { background: #F3F2EF; }
.nav-menu-toggle svg { width: 1.25rem; height: 1.25rem; }
@media (min-width: 768px) { .nav-menu-toggle { display: none; } }

.nav-mobile-panel {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  visibility: hidden;
}
.nav-mobile-panel.is-open {
  pointer-events: auto;
  visibility: visible;
}
.nav-mobile-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 45, 90, 0.45);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.nav-mobile-panel.is-open .nav-mobile-backdrop { opacity: 1; }
.nav-mobile-drawer {
  position: absolute;
  top: 0;
  right: 0;
  width: min(20rem, 88vw);
  height: 100%;
  background: #fff;
  box-shadow: -8px 0 32px rgba(6, 45, 90, 0.15);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  display: flex;
  flex-direction: column;
  padding: 1rem 1.25rem 1.5rem;
}
.nav-mobile-panel.is-open .nav-mobile-drawer { transform: translateX(0); }
.nav-mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #F0F0F0;
}
.nav-mobile-close {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 0;
  border-radius: 0.375rem;
  background: #F3F2EF;
  color: #444;
  cursor: pointer;
}
.nav-mobile-links {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}
.nav-mobile-links li + li { margin-top: 0.125rem; }
.nav-mobile-links a {
  display: block;
  padding: 0.75rem 0.5rem;
  font-size: 15px;
  font-weight: 600;
  color: #062D5A;
  text-decoration: none;
  border-radius: 0.375rem;
}
.nav-mobile-links a:hover,
.nav-mobile-links a.is-active {
  background: #EFF6FF;
  color: #0A66C2;
}
.nav-mobile-group-label {
  margin-top: 0.75rem;
  padding: 0.375rem 0.5rem 0.125rem;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #93C5FD;
  list-style: none;
}
.nav-mobile-group-label:first-child { margin-top: 0.25rem; }
.nav-mobile-links .nav-mobile-sublink a {
  padding-left: 1rem;
  font-size: 14px;
  font-weight: 500;
}
.nav-mobile-cta {
  margin-top: auto;
  padding-top: 1rem;
}
.nav-mobile-cta a {
  display: block;
  text-align: center;
  padding: 0.75rem 1rem;
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #0A66C2, #5645E6);
  text-decoration: none;
}

/* Beta waitlist */
.waitlist-section {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #062D5A 0%, #0A66C2 45%, #5645E6 100%);
  color: #fff;
}
.waitlist-inner {
  max-width: 42rem;
  margin: 0 auto;
  text-align: center;
  padding: 2.75rem 1.25rem;
}
@media (min-width: 640px) { .waitlist-inner { padding: 3.25rem 1.5rem; } }
.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-top: 1.75rem;
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 480px) {
  .waitlist-form { flex-direction: row; }
}
.waitlist-input {
  flex: 1;
  min-width: 0;
  padding: 0.8125rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 9999px;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  outline: none;
}
.waitlist-input::placeholder { color: rgba(255, 255, 255, 0.65); }
.waitlist-input:focus {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.18);
}
.waitlist-submit {
  padding: 0.8125rem 1.375rem;
  border: 0;
  border-radius: 9999px;
  font-size: 15px;
  font-weight: 600;
  color: #062D5A;
  background: #fff;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.waitlist-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}
.waitlist-success {
  margin-top: 1rem;
  font-size: 14px;
  font-weight: 600;
  color: #A7F3D0;
}
.waitlist-note {
  margin-top: 0.875rem;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.65);
}

/* Shared chrome */
.glass {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
}
.glass-dark {
  background: rgba(6, 45, 90, 0.55);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
}
footer .mx-auto.max-w-7xl { padding-top: 2.5rem; padding-bottom: 2.5rem; }
footer .grid.gap-10 { gap: 1.75rem; }
.footer-link {
  display: inline-block;
  padding: 0.2rem 0;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
.footer-link:hover,
.footer-link:focus-visible {
  color: #fff;
  text-decoration: underline;
  text-decoration-color: #A99CFF;
  text-underline-offset: 3px;
}
.nav-active { color: var(--trust-600); font-weight: 600; }

/* ── Shared mega nav (homepage + subpages) ── */
.site-nav-mega {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-mega { position: relative; }
.nav-mega-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 14px;
  font-weight: 600;
  color: #062D5A;
  cursor: default;
  user-select: none;
  transition: color 0.15s ease, background 0.15s ease;
}
.nav-mega-trigger::after {
  content: "";
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.45;
  transition: transform 0.2s ease, opacity 0.15s ease;
}
.nav-mega:hover .nav-mega-trigger,
.nav-mega:focus-within .nav-mega-trigger {
  color: #5645E6;
  background: rgba(107, 92, 255, 0.08);
}
.nav-mega:hover .nav-mega-trigger::after,
.nav-mega:focus-within .nav-mega-trigger::after {
  transform: rotate(180deg);
  opacity: 0.85;
}
.nav-mega-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 60;
  min-width: 13.5rem;
  padding: 0.65rem 0.5rem 0.5rem;
  border-radius: 0.875rem;
  background: var(--home-nav-panel, rgba(255, 255, 255, 0.96));
  border: 1px solid var(--home-nav-panel-border, rgba(10, 102, 194, 0.12));
  box-shadow:
    0 16px 40px -12px rgba(10, 102, 194, 0.22),
    0 4px 12px -4px rgba(6, 45, 90, 0.08);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(6px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}
.nav-mega-panel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 0.65rem;
  transform: translateY(-100%);
}
.nav-mega:hover .nav-mega-panel,
.nav-mega:focus-within .nav-mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.nav-mega-panel a {
  display: block;
  padding: 0.5625rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.35;
  color: #073F7D;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.12s ease, color 0.12s ease;
}
.nav-mega-panel a:hover {
  background: #EFF6FF;
  color: #0A66C2;
}
.nav-mega-panel a:focus-visible {
  outline: 2px solid #6B5CFF;
  outline-offset: 1px;
}
html[data-theme="twilight"] .nav-mega-trigger { color: #cbd5e1; }
html[data-theme="twilight"] .nav-mega:hover .nav-mega-trigger,
html[data-theme="twilight"] .nav-mega:focus-within .nav-mega-trigger {
  color: #c4b5fd;
  background: rgba(99, 102, 241, 0.15);
}
html[data-theme="twilight"] .nav-mega-panel a { color: #cbd5e1; }
html[data-theme="twilight"] .nav-mega-panel a:hover {
  background: rgba(99, 102, 241, 0.18);
  color: #e2e8f0;
}
html[data-theme="twilight"] .subpage-header .text-trust-900 { color: #f1f5f9; }
html[data-theme="twilight"] .subpage-header .text-trust-600 { color: #a99cff; }

.nav-mega-panel-label {
  margin: 0 0.75rem 0.5rem;
  padding-bottom: 0.375rem;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(6, 45, 90, 0.45);
  border-bottom: 1px solid rgba(10, 102, 194, 0.1);
}
@media (prefers-reduced-motion: reduce) {
  .nav-mega-panel,
  .nav-mega-trigger::after { transition: none; }
}

/* Legal + header-group sidebars (left selection, separate from header mega nav) */
.subpage-legal-group,
.subpage-side-group {
  margin-bottom: 0.75rem;
}
.subpage-legal-group + .subpage-toc-card,
.subpage-side-group + .subpage-toc-card {
  margin-top: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid #E8E8E8;
}
.subpage-legal-group-title,
.subpage-side-group-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #666;
  margin-bottom: 0.75rem;
}
.subpage-legal-group-list,
.subpage-side-group-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.subpage-legal-group-list li + li,
.subpage-side-group-list li + li { margin-top: 0.125rem; }
.subpage-legal-group-list a,
.subpage-side-group-list a {
  display: block;
  padding: 0.4375rem 0.5rem;
  margin-left: -0.5rem;
  border-radius: 0.25rem;
  font-size: 14px;
  font-weight: 600;
  color: #444;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}
.subpage-legal-group-list a:hover,
.subpage-side-group-list a:hover {
  background: var(--home-sidebar-hover, #F3F2EF);
  color: var(--trust-600);
}
.subpage-legal-group-list a.is-active,
.subpage-side-group-list a.is-active {
  color: var(--trust-600);
  border-left-color: var(--trust-600);
  background: var(--home-sidebar-active, #EFF6FF);
}
.subpage-legal-mobile,
.subpage-side-mobile {
  display: block;
  margin-bottom: 1rem;
}
@media (min-width: 1024px) {
  .subpage-legal-mobile,
  .subpage-side-mobile { display: none; }
}

/* Subpage top bar — shared across LinkedIn-style pages */
.subpage-header {
  background: var(--home-glass, #fff);
  border-bottom: 1px solid var(--home-glass-border, var(--border-subtle));
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
}
.subpage-nav-list {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}
.subpage-header .site-cta,
.subpage-header a[href="/#waitlist"] {
  border-radius: 9999px;
  padding: 0.5rem 1rem;
  font-size: 13px;
  font-weight: 600;
}

/* ── Subpage shell — matches site theme ── */
body.subpage {
  min-height: 100vh;
  background-color: transparent;
  background-image: var(--home-mesh), var(--home-canvas);
  background-attachment: fixed;
  background-size: cover, cover;
  color: var(--home-text, #1a1a1a);
  transition: color 0.35s ease;
}

.subpage-section-nav {
  background: var(--home-glass, #fff);
  border-bottom: 1px solid var(--home-glass-border, var(--border-subtle));
}
.subpage-section-nav-inner {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  gap: 0;
  overflow-x: auto;
}
.subpage-section-tab {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 1rem;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.subpage-section-tab:hover { color: var(--trust-600); }
.subpage-section-tab.is-active {
  color: var(--trust-600);
  border-bottom-color: var(--trust-600);
}

.subpage-main {
  padding: 1rem 1.25rem 2rem;
}
@media (min-width: 640px) { .subpage-main { padding: 1.25rem 1.5rem 2.5rem; } }

.subpage-wrap { max-width: 68rem; margin: 0 auto; }

.subpage-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  font-size: 13px;
  color: var(--home-prose-muted, var(--text-muted));
  margin-bottom: 1rem;
}
.subpage-breadcrumb a {
  color: var(--trust-600);
  text-decoration: none;
  font-weight: 500;
}
.subpage-breadcrumb a:hover { text-decoration: underline; }
.subpage-breadcrumb-sep { color: #999; user-select: none; }

.subpage-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
}
@media (min-width: 1024px) {
  .subpage-layout.has-sidebar { grid-template-columns: 17rem 1fr; gap: 1.5rem; }
}

.subpage-sidebar { display: none; }
@media (min-width: 1024px) {
  .subpage-sidebar {
    display: block;
    position: sticky;
    top: 7.5rem;
  }
}

.subpage-toc-card,
.subpage-related-card {
  background: var(--home-glass, #fff);
  border: 1px solid var(--home-glass-border, #E8E8E8);
  border-radius: 0.5rem;
  padding: 1rem 1.125rem;
  box-shadow: var(--home-panel-shadow, 0 0 0 1px rgba(0,0,0,0.02), 0 1px 3px rgba(0,0,0,0.06));
}
.subpage-related-card { margin-top: 0.75rem; }

.subpage-toc-title,
.subpage-related-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--home-prose-muted, #666);
  margin-bottom: 0.75rem;
}
.subpage-toc-list,
.subpage-related-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.subpage-toc-list li + li { margin-top: 0.125rem; }
.subpage-toc-list a {
  display: block;
  padding: 0.375rem 0.5rem;
  margin-left: -0.5rem;
  border-radius: 0.25rem;
  font-size: 14px;
  font-weight: 500;
  color: var(--home-prose-soft, #444);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}
.subpage-toc-list a:hover { background: var(--home-sidebar-hover, #F3F2EF); color: var(--trust-600); }
.subpage-toc-list a.is-active {
  color: var(--trust-600);
  border-left-color: var(--trust-600);
  background: var(--home-sidebar-active, #EFF6FF);
}

.subpage-related-list a {
  display: block;
  padding: 0.5rem 0;
  font-size: 14px;
  font-weight: 600;
  color: #0A66C2;
  text-decoration: none;
}
.subpage-related-list a:hover { text-decoration: underline; }
.subpage-related-list li + li {
  border-top: 1px solid var(--home-divider, #F0F0F0);
}

.subpage-card {
  background: var(--home-glass, #fff);
  border: 1px solid var(--home-glass-border, #E8E8E8);
  border-radius: 0.5rem;
  box-shadow: var(--home-panel-shadow, 0 0 0 1px rgba(0,0,0,0.02), 0 1px 3px rgba(0,0,0,0.06));
  overflow: hidden;
}

.subpage-cover {
  height: 3.25rem;
  background: linear-gradient(135deg, #0A66C2 0%, #5645E6 55%, #0852A1 100%);
  position: relative;
}
.subpage-cover.product { background: linear-gradient(135deg, var(--trust-600) 0%, #2E80D6 100%); }
.subpage-cover.company,
.subpage-cover.parents { background: linear-gradient(135deg, var(--spark-600) 0%, #8B7AFF 100%); }
.subpage-cover.legal { background: linear-gradient(135deg, var(--trust-900) 0%, var(--trust-600) 100%); }

.subpage-card-header {
  padding: 0 1.25rem 1.125rem;
  margin-top: -1.5rem;
  position: relative;
}
@media (min-width: 640px) {
  .subpage-card-header { padding: 0 1.5rem 1.25rem; }
}

.subpage-logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.375rem;
  background: var(--home-glass, #fff);
  border: 1px solid var(--home-glass-border, #E8E8E8);
  box-shadow: var(--home-panel-shadow, 0 2px 8px rgba(0,0,0,0.08));
  margin-bottom: 0.875rem;
}
.subpage-logo-badge img {
  width: 2.25rem;
  height: 2.25rem;
  object-fit: contain;
}
.subpage-logo-mark {
  object-fit: contain;
}

.subpage-category {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--home-prose-muted, #666);
}
.subpage-title {
  margin-top: 0.25rem;
  font-family: Lexend, Inter, sans-serif;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--home-heading, #1a1a1a);
  letter-spacing: -0.02em;
}
@media (min-width: 640px) { .subpage-title { font-size: 2rem; } }

.subpage-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--home-divider, #F0F0F0);
  font-size: 13px;
  color: var(--home-prose-muted, #666);
}
.subpage-meta strong { color: var(--home-prose-soft, #444); font-weight: 600; }

.subpage-body {
  padding: 0 1.25rem 1.5rem;
  border-top: 1px solid var(--home-divider, #F0F0F0);
}
@media (min-width: 640px) { .subpage-body { padding: 0 1.5rem 2rem; } }

/* Prose inside card */
.prose-page { max-width: none; }
.prose-page > p:first-child { margin-top: 1.5rem; }
.prose-page h2 {
  margin-top: 1.5rem;
  padding-top: 1.125rem;
  border-top: 1px solid var(--home-divider, #EBEBEB);
  font-family: Lexend, Inter, sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--home-heading, var(--trust-900));
  scroll-margin-top: 6rem;
}
.prose-page > h2:first-child,
.prose-page > .faq-list:first-child + h2,
.prose-page h2:first-of-type { border-top: none; padding-top: 0; margin-top: 0; }
.prose-page h3 {
  margin-top: 1rem;
  font-family: Inter, sans-serif;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--home-prose, #333);
}
.prose-page p, .prose-page li { font-size: 15px; line-height: 1.7; color: var(--home-prose, #333); }
.prose-page ul, .prose-page ol { margin-top: 0.625rem; padding-left: 1.25rem; }
.prose-page ul { list-style: disc; }
.prose-page ul li + li, .prose-page ol li + li { margin-top: 0.3rem; }

.prose-page .lead {
  font-size: 16px;
  line-height: 1.65;
  color: var(--home-prose-soft, #444);
  margin-top: 1.5rem;
}

.prose-page .info-card {
  margin-top: 1.25rem;
  border-radius: 0.5rem;
  border: 1px solid var(--home-glass-border, #DBEAFE);
  background: var(--home-chip-bg, #F8FAFC);
  padding: 1rem 1.25rem;
}
.prose-page .stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.25rem;
}
@media (max-width: 640px) { .prose-page .stat-grid { grid-template-columns: 1fr; } }
.prose-page .stat-box {
  border-radius: 0.5rem;
  background: #062D5A;
  color: #fff;
  padding: 1.125rem 1.25rem;
}
.prose-page .stat-box strong {
  display: block;
  font-family: Lexend, Inter, sans-serif;
  font-size: 1.625rem;
  font-weight: 800;
}
.prose-page .compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.25rem;
}
@media (max-width: 768px) { .prose-page .compare-grid { grid-template-columns: 1fr; } }
.prose-page .compare-card {
  border-radius: 0.5rem;
  padding: 1.125rem 1.25rem;
  border: 1px solid var(--home-glass-border, #E8E8E8);
  background: var(--home-chip-bg, #FAFAFA);
}
.prose-page .compare-card h2 { border: none; padding: 0; margin: 0; font-size: 1rem; }
.prose-page .compare-card.alt { background: var(--home-chip-bg, #F8FAFC); border-color: var(--home-glass-border, #DBEAFE); }

.prose-page .callout-box {
  margin-top: 2rem;
  padding: 1.25rem 1.375rem;
  border-radius: 0.75rem;
  border: 1px solid var(--home-glass-border, #BFDBFE);
  background: var(--home-panel, linear-gradient(135deg, #EFF6FF, #F5F3FF));
}
.prose-page .callout-box p { margin: 0; }

.prose-page .btn-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--trust-600);
  background: var(--home-glass, #fff);
  padding: 0.5rem 1.125rem;
  font-size: 14px;
  font-weight: 600;
  color: var(--trust-600);
  text-decoration: none;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
.prose-page .btn-link:hover {
  background: var(--home-sidebar-active, var(--trust-50));
  box-shadow: inset 0 0 0 1px var(--trust-600);
}
.prose-page .btn-link.primary,
.prose-page .site-cta {
  margin-top: 0.75rem;
  background: var(--trust-600);
  color: #fff;
  border-color: var(--trust-600);
}
.prose-page .btn-link.primary:hover,
.prose-page .site-cta:hover {
  background: var(--trust-700);
  box-shadow: 0 4px 14px -4px rgba(10, 102, 194, 0.45);
}
.site-cta--tight { margin-top: 0.75rem; }

.prose-page a.text-link { color: var(--trust-600); font-weight: 600; text-decoration: none; }
.prose-page a.text-link:hover { text-decoration: underline; }

/* FAQ accordion — LinkedIn help-center style */
.faq-list { margin-top: 1.5rem; }
.faq-item {
  border: 1px solid var(--home-glass-border, var(--border-subtle));
  border-radius: var(--radius-card);
  background: var(--home-glass, #fff);
  overflow: hidden;
}
.faq-item + .faq-item { margin-top: 0.5rem; }
.faq-item summary {
  display: flex;
  cursor: pointer;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.125rem;
  font-size: 15px;
  font-weight: 600;
  color: var(--home-heading, #1a1a1a);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  border-radius: 9999px;
  background: var(--home-sidebar-hover, #F3F2EF);
  font-size: 16px;
  font-weight: 400;
  color: var(--home-prose-muted, #666);
  transition: transform 0.15s ease, background 0.15s ease;
}
.faq-item[open] summary::after {
  content: "−";
  background: var(--home-sidebar-active, var(--trust-50));
  color: var(--trust-600);
}
.faq-item .faq-answer {
  padding: 0 1.125rem 1rem;
  font-size: 14px;
  line-height: 1.65;
  color: var(--home-prose-soft, #444);
  border-top: 1px solid var(--home-divider, #F0F0F0);
  padding-top: 0.875rem;
}

.subpage-bottom-nav {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
@media (min-width: 640px) { .subpage-bottom-nav { grid-template-columns: 1fr 1fr; } }
.subpage-bottom-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--home-glass, #fff);
  border: 1px solid var(--home-glass-border, #E8E8E8);
  border-radius: 0.5rem;
  text-decoration: none;
  box-shadow: var(--home-panel-shadow, 0 1px 3px rgba(0,0,0,0.04));
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.subpage-bottom-link:hover {
  border-color: #0A66C2;
  box-shadow: 0 2px 8px rgba(10,102,194,0.12);
}
.subpage-bottom-link span { font-size: 13px; color: var(--home-prose-muted, #666); }
.subpage-bottom-link strong { display: block; font-size: 14px; color: #0A66C2; font-weight: 600; }

/* Compact connection diagram (parents page) */
.connect-flow {
  margin-top: 1rem;
  padding: 1.25rem 1.375rem;
  background: linear-gradient(135deg, var(--trust-50), var(--spark-50));
  border: 1px solid var(--trust-200);
  border-radius: 0.75rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 28px -12px rgba(15, 23, 42, 0.08);
}
.connect-flow-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.2rem;
}
@media (max-width: 768px) {
  .connect-flow-diagram { flex-direction: column; align-items: stretch; }
  .connect-flow-arrow { transform: rotate(90deg); align-self: center; }
}
.connect-flow-node {
  flex: 0 1 auto;
  min-width: 6.5rem;
  max-width: 9rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-card);
  border: 1px solid var(--home-glass-border, var(--border-subtle));
  background: var(--home-glass, #fff);
  text-align: center;
  font-size: 12px;
  line-height: 1.45;
  color: var(--home-prose, var(--text-body));
}
.connect-flow-node strong {
  display: block;
  font-family: Lexend, Inter, sans-serif;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--trust-900);
  margin-bottom: 0.1rem;
}
.connect-flow-node--kid {
  border-color: var(--trust-200);
  background: var(--trust-50);
}
.connect-flow-node--step {
  border-color: var(--home-glass-border, var(--trust-200));
  border-style: dashed;
  background: var(--home-chip-bg, #fff);
}
.connect-flow-node--connected {
  border-color: var(--spark-500);
  background: var(--spark-50);
  box-shadow: 0 2px 8px -2px rgba(107, 92, 255, 0.2);
}
.connect-flow-node--blocked {
  border-color: var(--trust-200);
  background: var(--warm-100);
  color: var(--trust-900);
  font-size: 11px;
}
.connect-flow-node--activity {
  border-color: var(--home-glass-border, var(--trust-200));
  background: var(--home-glass, #fff);
  font-size: 11px;
}
.connect-flow-arrow {
  color: var(--trust-600);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
}
.connect-flow-branch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
  width: 100%;
  margin-top: 0.625rem;
  padding-top: 0.625rem;
  border-top: 1px dashed var(--trust-200);
}
.connect-flow-caption {
  margin: 0.75rem 0 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-muted);
  text-align: center;
}
.connect-flow-steps {
  margin-top: 0.875rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  list-style: none;
  padding-left: 0;
}
@media (max-width: 640px) { .connect-flow-steps { grid-template-columns: 1fr; } }
.connect-flow-steps li {
  margin: 0;
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-card);
  border: 1px solid var(--home-glass-border, var(--border-subtle));
  background: var(--home-chip-bg, #FAFAFA);
  font-size: 13px;
  line-height: 1.55;
  color: var(--home-prose, var(--text-body));
}
.connect-flow-steps li:nth-child(even) {
  background: var(--trust-50);
  border-color: var(--trust-200);
}
.connect-flow-steps strong {
  font-family: Lexend, Inter, sans-serif;
  color: var(--trust-900);
}

.why-benefits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1rem;
}
@media (max-width: 900px) { .why-benefits { grid-template-columns: 1fr; } }
.why-benefits-col {
  background: var(--home-chip-bg, #F8FAFC);
  border: 1px solid var(--home-glass-border, var(--trust-200));
  border-radius: var(--radius-card);
  padding: 0.875rem 1rem;
}
.why-benefits-col--parents { background: var(--trust-50); }
.why-benefits-col--both { background: var(--spark-50); border-color: var(--spark-100); }
.why-benefits-col h3 {
  margin: 0 0 0.75rem;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--trust-600);
}
.why-benefits-col--both h3 { color: var(--spark-600); }
.why-benefits-col ul { margin: 0; padding: 0; list-style: none; }
.why-benefits-col li {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-body);
  padding: 0.5rem 0;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.why-benefits-col li:first-child { border-top: none; padding-top: 0; }
.why-benefits-col li strong { color: var(--trust-900); }

.why-chart-wrap { margin-top: 1.25rem; overflow-x: auto; }
.why-chart {
  width: 100%;
  min-width: 32rem;
  border-collapse: collapse;
  font-size: 13.5px;
}
.why-chart th, .why-chart td {
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--border-subtle);
  text-align: center;
  color: var(--text-body);
}
.why-chart th { background: var(--home-sidebar-hover, #F3F2EF); font-weight: 600; }
.why-chart th:first-child, .why-chart td:first-child { text-align: left; }
.why-chart td.highlight { background: var(--trust-50); font-weight: 700; color: var(--trust-600); }
.why-closing { margin-top: 1rem; font-size: 14.5px; line-height: 1.65; color: var(--text-body); }

.together-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.625rem;
  margin-top: 1rem;
}
@media (max-width: 640px) { .together-strip { grid-template-columns: 1fr; } }
.together-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.875rem 1rem;
  background: #F8FAFC;
  border: 1px solid var(--trust-200);
  border-radius: var(--radius-card);
  font-size: 13.5px;
  line-height: 1.5;
}
.together-item strong { color: var(--trust-900); font-family: Lexend, Inter, sans-serif; }
.together-item span { color: var(--text-muted); font-size: 13px; }
.together-closing {
  margin-top: 1rem;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--trust-900);
  line-height: 1.6;
}

.age-lens {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 13.5px;
}
.age-lens th, .age-lens td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-subtle);
  text-align: left;
  vertical-align: top;
  line-height: 1.55;
  color: var(--text-body);
}
.age-lens th { background: var(--home-sidebar-hover, #F3F2EF); font-weight: 600; width: 28%; }

.how-page-links {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 14px;
  color: var(--text-muted);
}
.how-page-links a { font-weight: 600; color: var(--trust-600); text-decoration: none; }
.how-page-links a:hover { text-decoration: underline; }

/* In-page topic search (parents overview) */
.page-detail-search {
  margin: 1rem 0 1.25rem;
  padding: 0.875rem 1rem;
  background: var(--home-chip-bg, #F8FAFC);
  border: 1px solid var(--home-glass-border, var(--border-subtle));
  border-radius: var(--radius-card);
}
.page-detail-search-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--trust-600);
}
.page-detail-search-row { position: relative; }
.page-detail-search-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 14.5px;
  font-family: Inter, sans-serif;
  color: var(--trust-900);
  background: var(--home-glass, #fff);
  border: 1px solid var(--home-glass-border, var(--trust-200));
  border-radius: 0.5rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.page-detail-search-input:focus {
  border-color: var(--trust-600);
  box-shadow: 0 0 0 3px rgba(10, 102, 194, 0.12);
}
.page-detail-search-input::placeholder { color: var(--text-muted); }
.page-detail-search-results {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  max-height: 14rem;
  overflow-y: auto;
  background: var(--home-glass, #fff);
  border: 1px solid var(--home-glass-border, var(--trust-200));
  border-radius: 0.5rem;
  box-shadow: 0 8px 24px -8px rgba(15, 23, 42, 0.15);
}
.page-detail-search-results li { border-top: 1px solid var(--border-subtle); }
.page-detail-search-results li:first-child { border-top: none; }
.page-detail-search-results button {
  display: block;
  width: 100%;
  padding: 0.625rem 0.875rem;
  text-align: left;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--text-body);
  background: none;
  border: none;
  cursor: pointer;
  font-family: Inter, sans-serif;
}
.page-detail-search-results button:hover,
.page-detail-search-results button:focus {
  background: var(--trust-50);
  outline: none;
}
.page-detail-search-results strong {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--trust-900);
  margin-bottom: 0.15rem;
}
.page-detail-search-results span {
  display: block;
  font-size: 12.5px;
  color: var(--text-muted);
}
.page-detail-search-empty {
  padding: 0.75rem 0.875rem;
  font-size: 13px;
  color: var(--text-muted);
}

/* Two-category topic picker */
.page-topic-nav { margin-top: 1rem; }
.page-topic-categories {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}
.page-topic-cat {
  padding: 0.625rem 0.75rem;
  font-size: 13px;
  font-weight: 700;
  font-family: Lexend, Inter, sans-serif;
  line-height: 1.35;
  text-align: center;
  color: var(--trust-600);
  background: var(--home-glass, #fff);
  border: 1px solid var(--home-glass-border, var(--trust-200));
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.page-topic-cat:hover { background: var(--trust-50); }
.page-topic-cat.is-active,
.page-topic-cat[aria-selected="true"] {
  color: #fff;
  background: var(--trust-600);
  border-color: var(--trust-600);
}
.page-topic-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}
@media (max-width: 540px) {
  .page-topic-panel { grid-template-columns: 1fr; }
}
.page-topic-opt {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.75rem 0.875rem;
  text-align: left;
  background: var(--home-glass, #fff);
  border: 1px solid var(--home-glass-border, var(--trust-200));
  border-radius: var(--radius-card);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
  font-family: Inter, sans-serif;
}
.page-topic-opt:hover {
  border-color: var(--trust-600);
  background: var(--home-sidebar-active, var(--trust-50));
  box-shadow: var(--home-depth-hover);
}
.page-topic-opt.is-active {
  border-color: var(--trust-600);
  background: var(--home-sidebar-active, var(--trust-50));
  box-shadow: 0 0 0 2px rgba(10, 102, 194, 0.12);
}
.page-topic-opt-title {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--home-heading, var(--trust-900));
  line-height: 1.35;
}
.page-topic-opt-desc {
  font-size: 12px;
  line-height: 1.45;
  color: var(--home-prose-muted, var(--text-muted));
}
.page-search-hit {
  animation: page-search-flash 1.8s ease-out;
}
@keyframes page-search-flash {
  0% { background-color: rgba(10, 102, 194, 0.14); }
  100% { background-color: transparent; }
}

/* ── 404 error page ── */
.error-page-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 5rem);
}
.error-page-card {
  max-width: 28rem;
  margin: 0 auto;
  padding: 2.5rem 2rem;
  text-align: center;
}
.error-page-logo {
  width: 3.5rem;
  height: auto;
  margin: 0 auto 1.25rem;
  display: block;
}
.error-page-title {
  font-family: Lexend, Inter, sans-serif;
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.75rem;
  color: var(--home-heading);
}
.error-page-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--home-text-soft);
  margin: 0 0 1.75rem;
}
.error-page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  justify-content: center;
}
.error-page-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--home-glass-border, #BFDBFE);
  background: var(--home-glass, #fff);
  font-size: 14px;
  font-weight: 600;
  color: var(--trust-600);
  text-decoration: none;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
.error-page-link:hover {
  background: var(--home-sidebar-active, var(--trust-50));
  box-shadow: var(--home-depth-hover);
}

/* ── Twilight subpage overrides ── */
html[data-theme="twilight"] .subpage-section-tab { color: var(--home-text-muted); }
html[data-theme="twilight"] .subpage-section-tab.is-active { color: #93c5fd; border-bottom-color: #6366f1; }
html[data-theme="twilight"] .subpage-breadcrumb { color: var(--home-text-muted); }
html[data-theme="twilight"] .subpage-breadcrumb a { color: #93c5fd; }
html[data-theme="twilight"] .subpage-side-group-title,
html[data-theme="twilight"] .subpage-toc-title,
html[data-theme="twilight"] .subpage-related-title { color: var(--home-text-muted); }
html[data-theme="twilight"] .subpage-side-group-list a,
html[data-theme="twilight"] .subpage-toc-list a,
html[data-theme="twilight"] .subpage-related-list a { color: var(--home-text-soft); }
html[data-theme="twilight"] .subpage-side-group-list a.is-active,
html[data-theme="twilight"] .subpage-toc-list a.is-active { color: #93c5fd; border-left-color: #6366f1; }
html[data-theme="twilight"] .prose-page a.text-link { color: #93c5fd; }
html[data-theme="twilight"] .why-chart th,
html[data-theme="twilight"] .age-lens th { background: rgba(255, 255, 255, 0.06); color: var(--home-text-soft); }
html[data-theme="twilight"] .why-chart td,
html[data-theme="twilight"] .age-lens td { color: var(--home-prose); border-color: var(--home-divider); }
html[data-theme="twilight"] .page-topic-panel { background: var(--home-glass); border-color: var(--home-glass-border); }
html[data-theme="twilight"] .nav-mobile-panel { background: var(--home-nav-panel); border-color: var(--home-nav-panel-border); }
html[data-theme="twilight"] .nav-mobile-sublink a { color: var(--home-text-soft); }
html[data-theme="twilight"] .subpage-bottom-link strong { color: var(--home-heading); }