/* ClinTalk /learn — academic product surface mapped to docs/design-system.md. */

:root {
  color-scheme: light;
  --lrn-bg: #fafaf7;
  --lrn-surface: #ffffff;
  --lrn-surface-2: #f4f6f8;
  --lrn-ink: #1f2937;
  --lrn-ink-soft: #6b7280;
  --lrn-ink-faint: #9ca3af;
  --lrn-rule: #e2e8f0;
  --lrn-rule-strong: #cbd5e1;
  --lrn-accent: #156082;
  --lrn-accent-hover: #0f9ed5;
  --lrn-accent-soft: #e8f0f5;
  --lrn-link: #075985;
  --lrn-link-hover: #0c4a6e;
  --lrn-amber: #b45309;
  --lrn-amber-wash: #fef3c7;
  --lrn-band: #0e2841;
  --lrn-band-ink: #f8fafc;
  --lrn-band-soft: #cbd5e1;
  --lrn-band-rule: #334e68;
  --lrn-good: #22c55e;
  --lrn-success-text: #166534;
  --lrn-success-wash: #dcfce7;
  --lrn-part: #f59e0b;
  --lrn-bad: #ef4444;
  --lrn-danger-text: #991b1b;
  --lrn-danger-wash: #fee2e2;
  --lrn-shadow-xs: 0 1px 2px rgba(31, 41, 55, .04);
  --lrn-shadow-sm: 0 1px 3px rgba(31, 41, 55, .07), 0 1px 2px rgba(31, 41, 55, .04);
  --lrn-shadow-md: 0 4px 8px rgba(31, 41, 55, .08), 0 2px 4px rgba(31, 41, 55, .04);
  --lrn-shadow-primary: 0 8px 16px rgba(21, 96, 130, .10), 0 16px 32px rgba(21, 96, 130, .08);
  --lrn-serif: "Charter", "Georgia", "Times New Roman", serif;
  --lrn-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --lrn-reading: 46rem;
  --lrn-wide: 74rem;
  --lrn-radius-sm: 4px;
  --lrn-radius-md: 6px;
  --lrn-radius-lg: 8px;
  --lrn-ease: cubic-bezier(.16, 1, .3, 1);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --lrn-bg: #020617;
  --lrn-surface: #0f172a;
  --lrn-surface-2: #111c30;
  --lrn-ink: #f1f5f9;
  --lrn-ink-soft: #cbd5e1;
  --lrn-ink-faint: #94a3b8;
  --lrn-rule: #26354d;
  --lrn-rule-strong: #334155;
  --lrn-accent: #38bdf8;
  --lrn-accent-hover: #7dd3fc;
  --lrn-accent-soft: #0e2a3f;
  --lrn-link: #7dd3fc;
  --lrn-link-hover: #bae6fd;
  --lrn-amber: #f59e0b;
  --lrn-amber-wash: #35290f;
  --lrn-band: #0e2841;
  --lrn-band-ink: #f8fafc;
  --lrn-band-soft: #cbd5e1;
  --lrn-band-rule: #31516a;
  --lrn-success-text: #86efac;
  --lrn-success-wash: #123322;
  --lrn-danger-text: #fca5a5;
  --lrn-danger-wash: #3b1518;
  --lrn-shadow-xs: 0 1px 2px rgba(0, 0, 0, .25);
  --lrn-shadow-sm: 0 1px 3px rgba(0, 0, 0, .32), 0 1px 2px rgba(0, 0, 0, .24);
  --lrn-shadow-md: 0 8px 24px rgba(0, 0, 0, .28);
  --lrn-shadow-primary: 0 10px 28px rgba(2, 132, 199, .12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.learn-body {
  margin: 0;
  overflow-x: hidden;
  background: var(--lrn-bg);
  color: var(--lrn-ink);
  font-family: var(--lrn-sans);
  font-size: 18px;
  line-height: 1.68;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
a { -webkit-tap-highlight-color: transparent; }

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--lrn-accent);
  outline-offset: 3px;
}

/* Header */
.learn-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid color-mix(in srgb, var(--lrn-rule) 82%, transparent);
  background: color-mix(in srgb, var(--lrn-bg) 88%, transparent);
  backdrop-filter: blur(16px) saturate(118%);
  -webkit-backdrop-filter: blur(16px) saturate(118%);
}

.learn-header__inner {
  width: min(100%, calc(var(--lrn-wide) + 48px));
  min-height: 64px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.learn-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--lrn-ink);
  text-decoration: none;
}

.learn-brand__mark {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  object-fit: contain;
}

.learn-brand__name {
  font-size: 17px;
  font-weight: 700;
}

.learn-brand__section {
  padding-left: 11px;
  border-left: 1px solid var(--lrn-rule-strong);
  color: var(--lrn-ink-soft);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

.learn-header__spacer { flex: 1; }

[data-user-locale-switcher] { flex: 0 0 auto; }
.user-locale-switcher {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding-left: 9px;
  color: var(--lrn-ink-soft);
  background: color-mix(in srgb, var(--lrn-surface) 76%, transparent);
  border: 1px solid var(--lrn-rule-strong);
  border-radius: var(--lrn-radius-md);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 30%, transparent);
  transition: color 120ms, border-color 120ms, background-color 120ms;
}
.user-locale-switcher:hover,
.user-locale-switcher:focus-within {
  color: var(--lrn-accent);
  border-color: var(--lrn-accent);
}
.user-locale-switcher:focus-within { box-shadow: 0 0 0 3px color-mix(in srgb, var(--lrn-accent) 16%, transparent); }
.user-locale-switcher__icon {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}
.user-locale-switcher__select {
  min-width: 0;
  max-width: 112px;
  min-height: 36px;
  padding: 6px 8px 6px 6px;
  border: 0;
  color: inherit;
  background: transparent;
  font: 600 13px/1.2 var(--lrn-sans);
  cursor: pointer;
}
.user-locale-switcher__select:focus-visible { outline: 0; }
.user-locale-switcher__select:disabled { cursor: wait; opacity: .65; }
.user-locale-switcher__select option { color: var(--lrn-ink); background: var(--lrn-surface); }

.learn-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: var(--lrn-radius-md);
  color: var(--lrn-ink-soft);
  font-size: 15px;
  font-family: var(--lrn-sans);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: color 120ms, border-color 120ms, background-color 120ms;
}

.learn-nav-link:hover {
  color: var(--lrn-ink);
  background: color-mix(in srgb, var(--lrn-surface) 72%, transparent);
  border-color: var(--lrn-rule);
}

.learn-nav-link--cta {
  gap: 8px;
  padding: 0 15px;
  color: #ffffff;
  background: var(--lrn-accent);
  border-color: var(--lrn-accent);
  box-shadow: var(--lrn-shadow-xs);
}

.learn-nav-link--cta svg { width: 16px; height: 16px; }

.learn-nav-link--cta:hover {
  color: #ffffff;
  background: color-mix(in srgb, var(--lrn-accent) 88%, #000000);
  border-color: color-mix(in srgb, var(--lrn-accent) 88%, #000000);
}

:root[data-theme="dark"] .learn-nav-link--cta,
:root[data-theme="dark"] .learn-nav-link--cta:hover {
  color: #0e2841;
}

.learn-theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  padding: 0;
  border: 1px solid var(--lrn-rule-strong);
  border-radius: 50%;
  color: var(--lrn-ink-soft);
  background: color-mix(in srgb, var(--lrn-surface) 76%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 30%, transparent);
  cursor: pointer;
  transition: color 120ms, border-color 120ms, background-color 120ms;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.learn-theme-toggle:hover {
  color: var(--lrn-accent);
  border-color: var(--lrn-accent);
}

.learn-theme-icon { width: 18px; height: 18px; }
.learn-theme-icon--sun { display: none; }
:root[data-theme="dark"] .learn-theme-icon--moon { display: none; }
:root[data-theme="dark"] .learn-theme-icon--sun { display: block; }

/* Main layout and typography */
.learn-main {
  width: min(100%, var(--lrn-reading));
  margin: 0 auto;
  padding: 52px 24px 88px;
}

.learn-main--wide { width: min(100%, calc(var(--lrn-wide) + 48px)); }
.learn-main--unit { width: min(100%, calc(var(--lrn-wide) + 112px)); }

.learn-eyebrow,
.learn-section-kicker {
  margin: 0 0 10px;
  color: var(--lrn-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1.learn-title {
  margin: 0;
  color: var(--lrn-ink);
  font-family: var(--lrn-serif);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.learn-main--wide h1.learn-title { font-size: 54px; }

.learn-hook {
  margin: 18px 0 34px;
  color: var(--lrn-ink-soft);
  font-size: 21px;
  line-height: 1.55;
  text-wrap: pretty;
}

.learn-unit-hero .learn-hook { margin-bottom: 18px; }

.learn-unit-context {
  display: grid;
  grid-template-columns: 42px auto minmax(120px, 1fr);
  align-items: center;
  gap: 12px;
  margin: 0 0 34px;
  padding: 14px 0;
  border-top: 1px solid var(--lrn-rule);
  border-bottom: 1px solid var(--lrn-rule);
}

.learn-unit-context__emoji {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--lrn-rule);
  border-radius: var(--lrn-radius-lg);
  background: var(--lrn-surface);
  box-shadow: var(--lrn-shadow-xs);
  font-size: 22px;
  line-height: 1;
}

.learn-unit-context__copy { display: grid; gap: 1px; min-width: 92px; }

.learn-unit-context__copy span {
  color: var(--lrn-ink-faint);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.learn-unit-context__copy strong { font-size: 15px; line-height: 1.3; }

.learn-unit-context__graph {
  width: min(172px, 100%);
  height: 24px;
  margin-left: auto;
  overflow: visible;
}

.learn-unit-context__track {
  fill: none;
  stroke: var(--lrn-rule-strong);
  stroke-width: 2;
}

.learn-unit-context__node {
  fill: var(--lrn-surface);
  stroke: var(--lrn-rule-strong);
  stroke-width: 2;
}

.learn-unit-context__node.is-complete { fill: var(--lrn-good); stroke: var(--lrn-good); }
.learn-unit-context__node.is-current { fill: var(--lrn-accent); stroke: var(--lrn-accent); }

/* Unit page: readable article plus useful consultation navigation. */
.learn-unit-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--lrn-reading)) 18rem;
  grid-template-areas:
    "hero sidebar"
    "content sidebar";
  gap: 0 52px;
  align-items: start;
  justify-content: center;
}

.learn-unit-hero {
  grid-area: hero;
  min-width: 0;
  padding-top: 8px;
}

.learn-unit-content {
  grid-area: content;
  min-width: 0;
}

.learn-unit-sidebar {
  grid-area: sidebar;
  position: sticky;
  top: 88px;
  display: grid;
  gap: 24px;
  max-height: calc(100vh - 112px);
  overflow-y: auto;
  padding-right: 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--lrn-rule-strong) transparent;
  min-width: 0;
}

.learn-unit-route {
  min-width: 0;
  padding: 18px;
  border: 1px solid color-mix(in srgb, var(--lrn-rule-strong) 82%, transparent);
  border-radius: var(--lrn-radius-lg);
  background: color-mix(in srgb, var(--lrn-surface) 82%, transparent);
  box-shadow: var(--lrn-shadow-xs), inset 0 1px 0 color-mix(in srgb, #ffffff 36%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.learn-unit-route__title,
.learn-unit-toc > p {
  margin: 0 0 14px;
  color: var(--lrn-ink-faint);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.learn-unit-route__list {
  display: grid;
  gap: 15px;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.learn-unit-route__phase {
  position: relative;
  padding-left: 28px;
}

.learn-unit-route__phase::before {
  content: "";
  position: absolute;
  top: 7px;
  bottom: -18px;
  left: 8px;
  width: 1px;
  background: var(--lrn-rule);
}

.learn-unit-route__phase:last-child::before { display: none; }

.learn-unit-route__phase-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-height: 22px;
}

.learn-unit-route__phase-head span {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border: 1px solid var(--lrn-rule-strong);
  border-radius: 50%;
  color: var(--lrn-ink-faint);
  background: var(--lrn-bg);
}

.learn-unit-route__phase-head span svg { width: 11px; height: 11px; }

.learn-unit-route__phase-head strong {
  color: var(--lrn-ink);
  font-size: 14px;
  line-height: 1.35;
}

.learn-unit-route__phase.is-current .learn-unit-route__phase-head span {
  color: #ffffff;
  border-color: var(--lrn-accent);
  background: var(--lrn-accent);
}

:root[data-theme="dark"] .learn-unit-route__phase.is-current .learn-unit-route__phase-head span {
  color: #0e2841;
}

.learn-unit-route__topics {
  display: grid;
  gap: 2px;
  margin-top: 3px;
}

.learn-unit-route__topic {
  padding: 5px 7px;
  border-radius: var(--lrn-radius-sm);
  color: var(--lrn-ink-soft);
  font-size: 14px;
  line-height: 1.35;
  text-decoration: none;
}

.learn-unit-route__topic:hover { color: var(--lrn-accent); background: var(--lrn-accent-soft); }

.learn-unit-route__topic.is-current {
  color: var(--lrn-accent);
  background: var(--lrn-accent-soft);
  font-weight: 700;
}

.learn-unit-toc {
  display: grid;
  gap: 1px;
  min-width: 0;
  padding-left: 16px;
  border-left: 1px solid var(--lrn-rule-strong);
}

.learn-unit-toc > p { margin-bottom: 8px; }

.learn-unit-toc a {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 7px;
  padding: 6px 0;
  color: var(--lrn-ink-soft);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
}

.learn-unit-toc a span {
  color: var(--lrn-ink-faint);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 11px;
}

.learn-unit-toc a:hover { color: var(--lrn-accent); }

.learn-hub-hero {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 56px;
  align-items: center;
  padding: 26px 0 42px;
  border-bottom: 1px solid var(--lrn-rule);
}

.learn-hub-hero__lead { padding-bottom: 2px; }

.learn-hub-lead {
  max-width: 34rem;
  margin: 0;
  color: var(--lrn-ink-soft);
  font-size: 18px;
  line-height: 1.58;
  text-wrap: pretty;
}

.learn-hub-visual {
  margin: 0 0 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--lrn-rule);
}

.learn-hub-visual__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 5px;
}

.learn-hub-visual__head span {
  color: var(--lrn-accent);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.learn-hub-visual__head strong {
  color: var(--lrn-ink-soft);
  font-size: 13px;
  font-weight: 600;
}

.learn-hub-visual__chart { display: block; width: 100%; height: auto; max-height: 150px; }
.learn-hub-visual__grid { fill: none; stroke: var(--lrn-rule); stroke-width: 1; }

.learn-hub-visual__shadow {
  fill: none;
  stroke: var(--lrn-accent-soft);
  stroke-width: 12;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.learn-hub-visual__line {
  fill: none;
  stroke: var(--lrn-accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.learn-hub-visual__nodes circle { stroke: var(--lrn-surface); stroke-width: 4; }
.learn-hub-visual__nodes .is-contact { fill: var(--lrn-accent); }
.learn-hub-visual__nodes .is-question { fill: var(--lrn-good); }
.learn-hub-visual__nodes .is-emotion { fill: var(--lrn-amber); }
.learn-hub-visual__nodes .is-explain { fill: var(--lrn-accent-hover); }
.learn-hub-visual__nodes .is-finish { fill: var(--lrn-ink); }

.learn-hub-visual__legend {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  margin: 0;
  padding: 0;
  color: var(--lrn-ink-soft);
  font-size: 11px;
  line-height: 1.25;
  list-style: none;
}

.learn-hub-visual__legend li { display: grid; justify-items: center; gap: 2px; text-align: center; }
.learn-hub-visual__legend span { font-size: 16px; line-height: 1; }

.learn-hub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.learn-hub-meta span {
  padding: 5px 9px;
  border: 1px solid var(--lrn-rule-strong);
  border-radius: 999px;
  color: var(--lrn-ink-soft);
  background: var(--lrn-surface);
  font-size: 13px;
  font-weight: 600;
}

.learn-section-head,
.learn-map__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 22px;
}

.learn-section-head h2,
.learn-map__head h2 {
  margin: 0;
  font-family: var(--lrn-serif);
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: 0;
  text-wrap: balance;
}

.learn-section-head > p,
.learn-map__head > p {
  max-width: 28rem;
  margin: 0;
  color: var(--lrn-ink-soft);
  font-size: 16px;
  line-height: 1.5;
  text-align: right;
  text-wrap: pretty;
}

/* Consultation route */
.learn-map {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--lrn-rule);
  border-radius: var(--lrn-radius-lg);
  background: var(--lrn-surface);
  box-shadow: var(--lrn-shadow-sm);
}

.learn-map__phases {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.learn-map__phases::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 18px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: var(--lrn-rule-strong);
}

.learn-map__phase { position: relative; z-index: 1; min-width: 0; }

.learn-map__phase-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  margin-bottom: 14px;
  text-align: center;
}

.learn-map__phase-head > span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--lrn-accent);
  border-radius: 50%;
  color: var(--lrn-accent);
  background: var(--lrn-surface);
}

.learn-map__phase-head > span svg { width: 17px; height: 17px; }

.learn-map__phase-head strong {
  min-height: 24px;
  font-size: 15px;
  line-height: 1.35;
}

.learn-map__topics { display: grid; gap: 8px; }

.learn-map__topic {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 58px;
  padding: 10px 11px;
  border: 1px solid var(--lrn-rule);
  border-radius: var(--lrn-radius-md);
  color: var(--lrn-ink);
  background: var(--lrn-surface-2);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  text-decoration: none;
  transition: color 120ms, border-color 120ms, background-color 120ms, transform 200ms var(--lrn-ease);
}

.learn-map__topic svg { width: 15px; height: 15px; flex: 0 0 15px; color: var(--lrn-accent); }

.learn-map__topic:hover {
  color: var(--lrn-accent);
  border-color: var(--lrn-accent);
  background: var(--lrn-accent-soft);
  transform: translateY(-1px);
}

.learn-map__topic--soon {
  border-style: dashed;
  color: var(--lrn-ink-faint);
  background: transparent;
}

.learn-map__topic--soon small { font-size: 11px; font-weight: 600; text-transform: uppercase; }

/* Long overview */
.learn-overview {
  margin-top: 72px;
  padding-top: 56px;
  border-top: 1px solid var(--lrn-rule);
}

.learn-overview__layout {
  display: grid;
  grid-template-columns: 240px minmax(0, var(--lrn-reading));
  gap: 56px;
  align-items: start;
  justify-content: center;
}

.learn-toc {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 2px;
  padding-left: 16px;
  border-left: 1px solid var(--lrn-rule-strong);
}

.learn-toc > p {
  margin: 0 0 9px;
  color: var(--lrn-ink-faint);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.learn-toc a {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 7px;
  padding: 7px 0;
  color: var(--lrn-ink-soft);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
}

.learn-toc a span {
  color: var(--lrn-ink-faint);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 11px;
}

.learn-toc a:hover { color: var(--lrn-accent); }
.learn-overview__content { min-width: 0; }

/* Article prose */
.learn-article { max-width: var(--lrn-reading); }

.learn-article h2 {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: start;
  gap: 11px;
  scroll-margin-top: 92px;
  margin: 52px 0 16px;
  padding-top: 28px;
  border-top: 1px solid var(--lrn-rule);
  color: var(--lrn-ink);
  font-family: var(--lrn-serif);
  font-size: 31px;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0;
  text-wrap: balance;
}

.learn-article h2:first-child { margin-top: 0; }
.learn-article p { margin: 0 0 18px; text-wrap: pretty; }

.learn-heading-icon {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-top: 2px;
  border: 1px solid color-mix(in srgb, var(--lrn-accent) 24%, var(--lrn-rule));
  border-radius: var(--lrn-radius-md);
  color: var(--lrn-accent);
  background: var(--lrn-accent-soft);
}

.learn-heading-icon svg { width: 15px; height: 15px; }

.learn-prose-point {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: start;
  gap: 10px;
}

.learn-prose-point__icon {
  width: 15px;
  height: 15px;
  margin-top: .48em;
  color: var(--lrn-ink-faint);
}

.learn-article h2 + .learn-prose-point {
  color: var(--lrn-ink);
  font-size: 19px;
  font-weight: 500;
}

.learn-article h2 + .learn-prose-point .learn-prose-point__icon { color: var(--lrn-accent); }

.learn-prose-point--better {
  margin: 2px 0 14px;
  padding: 11px 13px;
  border-left: 3px solid var(--lrn-good);
  border-radius: var(--lrn-radius-md);
  color: var(--lrn-success-text);
  background: var(--lrn-success-wash);
}

.learn-prose-point--better .learn-prose-point__icon { color: var(--lrn-success-text); }
.learn-term,
.learn-prose-lead { color: var(--lrn-ink); font-weight: 700; }
.learn-prose-better { color: var(--lrn-success-text); font-weight: 700; }
.learn-inline-quote { color: var(--lrn-ink); font-style: italic; }

.learn-article ul {
  display: grid;
  gap: 9px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.learn-article ul li {
  position: relative;
  padding-left: 22px;
}

.learn-article ul li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 4px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lrn-accent);
}

.learn-article a {
  color: var(--lrn-link);
  text-decoration-color: color-mix(in srgb, var(--lrn-link) 36%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.learn-article a:hover { color: var(--lrn-link-hover); }

.learn-article > a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin: 0 7px 9px 0;
  padding: 4px 9px;
  border: 1px solid var(--lrn-rule-strong);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.learn-article > a:hover { border-color: var(--lrn-accent); }

.learn-example {
  display: grid;
  gap: 7px;
  margin: 4px 0 24px;
  padding: 13px;
  border: 1px solid var(--lrn-rule);
  border-radius: var(--lrn-radius-lg);
  color: var(--lrn-ink);
  background: var(--lrn-surface);
  box-shadow: var(--lrn-shadow-xs);
  font-size: 18px;
  line-height: 1.62;
}

.learn-example__line {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: start;
  gap: 9px;
  margin: 0;
  padding: 8px 10px;
  border-radius: var(--lrn-radius-md);
}

.learn-example__line > svg {
  width: 16px;
  height: 16px;
  margin-top: .35em;
  color: var(--lrn-ink-faint);
}

.learn-example__line--better,
.learn-example__line--better-title {
  border-left: 3px solid var(--lrn-good);
  color: var(--lrn-success-text);
  background: var(--lrn-success-wash);
}

.learn-example__line--avoid,
.learn-example__line--avoid-title {
  border-left: 3px solid var(--lrn-bad);
  color: var(--lrn-danger-text);
  background: var(--lrn-danger-wash);
}

.learn-example__line--better > svg,
.learn-example__line--better-title > svg { color: var(--lrn-success-text); }
.learn-example__line--avoid > svg,
.learn-example__line--avoid-title > svg { color: var(--lrn-danger-text); }
.learn-example__line--dialogue > svg { color: var(--lrn-accent); }

.learn-example__line--analysis {
  border-left: 3px solid var(--lrn-amber);
  background: var(--lrn-amber-wash);
}

.learn-example__line--analysis > svg { color: var(--lrn-amber); }
.learn-example__break { height: 5px; }
.learn-speaker { color: var(--lrn-ink); font-weight: 700; }
.learn-speaker--better { color: var(--lrn-success-text); }
.learn-speaker--avoid { color: var(--lrn-danger-text); }
.learn-stage { color: var(--lrn-ink-faint); font-style: italic; }

/* Interactive consultation scene */
.learn-scene {
  margin: 34px 0;
  padding: 28px;
  border: 1px solid var(--lrn-band-rule);
  border-radius: var(--lrn-radius-lg);
  color: var(--lrn-band-ink);
  background: var(--lrn-band);
  box-shadow: var(--lrn-shadow-md);
}

.learn-scene__label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 17px;
  color: #7dd3fc;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.learn-scene__label svg { width: 15px; height: 15px; }

.learn-embed-turn__patient,
.learn-embed-fallback__patient {
  margin: 0 0 20px;
  color: var(--lrn-band-ink);
  font-family: var(--lrn-serif);
  font-size: 21px;
  line-height: 1.5;
}

.learn-embed-turn__choices,
.learn-embed-fallback__choices { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }

.learn-embed-choice,
.learn-embed-fallback__choices li {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--lrn-band-rule);
  border-radius: var(--lrn-radius-md);
  color: var(--lrn-band-ink);
  background: rgba(255, 255, 255, .04);
  font-family: var(--lrn-sans);
  font-size: 17px;
  line-height: 1.5;
  text-align: left;
}

.learn-embed-choice {
  cursor: pointer;
  transition: border-color 120ms, background-color 120ms, transform 200ms var(--lrn-ease);
}

.learn-embed-choice:hover {
  border-color: #67e8f9;
  background: rgba(103, 232, 249, .08);
  transform: translateY(-1px);
}

.learn-embed-choice:focus-visible { outline-color: #67e8f9; }

.learn-embed-debrief__outcome {
  margin: 0 0 10px;
  padding-left: 13px;
  border-left: 2px solid var(--lrn-band-rule);
  color: var(--lrn-band-soft);
  font-style: italic;
}

.learn-embed-debrief__text { margin: 0 0 19px; color: var(--lrn-band-ink); }

.learn-embed-next,
.learn-embed-retry {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  font-family: var(--lrn-sans);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.learn-embed-next { border: 0; color: #0e2841; background: #67e8f9; }
.learn-embed-next:hover { background: #a5f3fc; }

.learn-embed-chosen {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 14px;
  padding: 13px 15px;
  border: 1px solid var(--lrn-band-rule);
  border-radius: var(--lrn-radius-md);
  background: rgba(255, 255, 255, .04);
}

.learn-embed-chosen__sign { flex: none; font-weight: 700; }
.learn-embed-chosen__text { color: var(--lrn-band-ink); font-size: 17px; line-height: 1.5; }
.learn-embed-chosen--good { border-color: color-mix(in srgb, var(--lrn-good) 62%, transparent); }
.learn-embed-chosen--good .learn-embed-chosen__sign { color: var(--lrn-good); }
.learn-embed-chosen--part { border-color: color-mix(in srgb, var(--lrn-part) 62%, transparent); }
.learn-embed-chosen--part .learn-embed-chosen__sign { color: var(--lrn-part); }
.learn-embed-chosen--bad { border-color: color-mix(in srgb, var(--lrn-bad) 58%, transparent); }
.learn-embed-chosen--bad .learn-embed-chosen__sign { color: var(--lrn-bad); }

.learn-embed-result { padding: 8px 0 2px; text-align: center; }
.learn-embed-result__sign { display: block; font-size: 30px; font-weight: 700; }
.learn-embed-result--good .learn-embed-result__sign { color: var(--lrn-good); }
.learn-embed-result--part .learn-embed-result__sign { color: var(--lrn-part); }
.learn-embed-result--bad .learn-embed-result__sign { color: var(--lrn-bad); }
.learn-embed-result__headline { margin: 6px 0 3px; color: var(--lrn-band-ink); font-family: var(--lrn-serif); font-size: 21px; }
.learn-embed-result__score { margin: 0 0 15px; color: var(--lrn-band-soft); font-size: 15px; }

.learn-embed-retry {
  border: 1px solid var(--lrn-band-rule);
  color: var(--lrn-band-ink);
  background: transparent;
}

.learn-embed-retry:hover { border-color: #67e8f9; color: #67e8f9; }

/* Recall and accreditation */
.learn-retrieval {
  margin: 48px 0 24px;
  padding: 24px;
  border: 1px solid color-mix(in srgb, var(--lrn-amber) 32%, transparent);
  border-radius: var(--lrn-radius-lg);
  background: var(--lrn-amber-wash);
}

.learn-retrieval__head {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 4px;
  font-family: var(--lrn-serif);
  font-size: 23px;
  font-weight: 700;
}

.learn-retrieval__head svg { width: 20px; height: 20px; color: var(--lrn-amber); }
.learn-retrieval__sub { margin: 0 0 17px; color: var(--lrn-ink-soft); font-size: 16px; }
.learn-retrieval-q { border-top: 1px solid color-mix(in srgb, var(--lrn-amber) 30%, transparent); }

.learn-retrieval-q > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 0;
  list-style: none;
  cursor: pointer;
  font-weight: 600;
}

.learn-retrieval-q > summary::-webkit-details-marker { display: none; }

.learn-retrieval-q > summary::before {
  content: "?";
  flex: 0 0 20px;
  color: var(--lrn-amber);
  font-family: var(--lrn-serif);
  font-weight: 700;
  text-align: center;
}

.learn-retrieval-q[open] > summary::before { content: "✓"; color: var(--lrn-accent); }
.learn-retrieval-q > p { margin: 0 0 16px 30px; color: var(--lrn-ink-soft); }

.learn-rq-type {
  flex: none;
  padding: 3px 7px;
  border-radius: 999px;
  color: color-mix(in srgb, var(--lrn-ink) 72%, var(--lrn-amber));
  background: color-mix(in srgb, var(--lrn-amber) 20%, transparent);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.learn-rq-type--fix_error { background: color-mix(in srgb, var(--lrn-bad) 16%, transparent); }
.learn-rq-type--recognition { background: var(--lrn-surface-2); }
.learn-rq-type--cued_recall { background: var(--lrn-accent-soft); }

.learn-retrieval-intention {
  margin: 18px 0 0;
  padding-top: 17px;
  border-top: 1px dashed color-mix(in srgb, var(--lrn-amber) 42%, transparent);
  font-weight: 600;
}

.learn-retrieval-intention::before { content: "→ "; color: var(--lrn-amber); }

.learn-accreditation {
  margin: 24px 0;
  border: 1px solid var(--lrn-rule);
  border-radius: var(--lrn-radius-lg);
  background: var(--lrn-surface);
  box-shadow: var(--lrn-shadow-xs);
}

.learn-accreditation > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-weight: 700;
}

.learn-accreditation > summary::-webkit-details-marker { display: none; }
.learn-accreditation__icon { width: 19px; height: 19px; color: var(--lrn-accent); }
.learn-accreditation__chevron { width: 17px; height: 17px; margin-left: auto; color: var(--lrn-ink-faint); transition: transform 200ms; }
.learn-accreditation[open] .learn-accreditation__chevron { transform: rotate(180deg); }
.learn-accreditation > p { margin: 0; padding: 0 18px 18px 47px; color: var(--lrn-ink-soft); }

/* Related links, sources and CTAs */
.learn-next { margin-top: 48px; padding-top: 25px; border-top: 1px solid var(--lrn-rule); }
.learn-next__label { margin: 0 0 11px; color: var(--lrn-ink-faint); font-size: 12px; font-weight: 700; text-transform: uppercase; }
.learn-next__links { display: flex; flex-wrap: wrap; gap: 8px; }

.learn-next__links a {
  padding: 7px 11px;
  border: 1px solid var(--lrn-rule-strong);
  border-radius: 999px;
  color: var(--lrn-ink);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.learn-next__links a:hover { color: var(--lrn-accent); border-color: var(--lrn-accent); }

.learn-sources { margin-top: 48px; }

.learn-sources h2 {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  padding-top: 25px;
  border-top: 1px solid var(--lrn-rule);
  font-family: var(--lrn-serif);
  font-size: 24px;
  letter-spacing: 0;
}

.learn-sources h2 svg { width: 19px; height: 19px; color: var(--lrn-accent); }

.learn-sources ul { margin: 0; padding: 0; list-style: none; }
.learn-sources li { padding: 9px 0; border-bottom: 1px solid var(--lrn-rule); color: var(--lrn-ink-soft); font-size: 14px; line-height: 1.55; }
.learn-sources a { color: var(--lrn-link); text-decoration: none; }
.learn-sources a:hover { color: var(--lrn-link-hover); text-decoration: underline; text-underline-offset: 3px; }

.learn-cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 42px; }

.learn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--lrn-accent);
  border-radius: 999px;
  color: #ffffff;
  background: var(--lrn-accent);
  box-shadow: var(--lrn-shadow-sm);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 120ms, color 120ms, border-color 120ms, transform 200ms var(--lrn-ease);
}

.learn-cta svg { width: 16px; height: 16px; }
.learn-cta:hover { transform: translateY(-1px); }

:root[data-theme="dark"] .learn-cta { color: #0e2841; }

/* Footer and reading progress */
.learn-footer {
  width: 100%;
  border-top: 1px solid var(--lrn-rule);
  background: var(--lrn-surface-2);
}

.learn-footer__inner {
  width: min(100%, calc(var(--lrn-wide) + 48px));
  min-height: 150px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.learn-footer__brand { display: flex; align-items: center; gap: 12px; }
.learn-footer__brand img { width: 36px; height: 36px; object-fit: contain; }
.learn-footer__brand div { display: grid; gap: 1px; }
.learn-footer__brand strong { font-size: 16px; }
.learn-footer__brand span { color: var(--lrn-ink-soft); font-size: 13px; }
.learn-footer__nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 20px; }
.learn-footer__nav a { color: var(--lrn-ink-soft); font-size: 14px; font-weight: 600; text-decoration: none; }
.learn-footer__nav a:hover { color: var(--lrn-accent); }

.learn-progress { position: fixed; z-index: 30; top: 0; left: 0; right: 0; height: 3px; pointer-events: none; }
.learn-progress > span { display: block; width: 100%; height: 100%; background: var(--lrn-accent); transform: scaleX(0); transform-origin: 0 50%; }

.learn-scrolltop {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 18;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--lrn-rule-strong);
  border-radius: 50%;
  color: var(--lrn-ink);
  background: color-mix(in srgb, var(--lrn-surface) 84%, transparent);
  box-shadow: var(--lrn-shadow-md), inset 0 1px 0 color-mix(in srgb, #ffffff 32%, transparent);
  opacity: 0;
  pointer-events: none;
  cursor: pointer;
  transform: translateY(10px);
  transition: opacity 160ms, transform 220ms var(--lrn-ease), border-color 120ms, color 120ms;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.learn-scrolltop svg { width: 20px; height: 20px; }
.learn-scrolltop:hover { color: var(--lrn-accent); border-color: var(--lrn-accent); }

.learn-scrolltop.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .learn-main--unit { width: min(100%, calc(var(--lrn-reading) + 48px)); }
  .learn-unit-layout {
    grid-template-columns: minmax(0, var(--lrn-reading));
    grid-template-areas:
      "hero"
      "sidebar"
      "content";
  }
  .learn-unit-sidebar {
    position: static;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 22px;
    max-height: none;
    overflow: visible;
    margin: 0 0 36px;
    padding: 0;
  }
  .learn-unit-toc { align-content: start; }
}

@media (max-width: 940px) {
  .learn-hub-hero { grid-template-columns: 1fr; gap: 22px; padding-top: 22px; }
  .learn-hub-lead { max-width: var(--lrn-reading); }
  .learn-map__phases { grid-template-columns: 1fr; gap: 12px; }
  .learn-map__phases::before { top: 18px; bottom: 18px; left: 18px; right: auto; width: 1px; height: auto; }
  .learn-map__phase { display: grid; grid-template-columns: 50px minmax(0, 1fr); gap: 10px; }
  .learn-map__phase-head { align-items: center; margin: 0; }
  .learn-map__phase-head strong { width: 110px; min-height: 0; position: absolute; left: 50px; top: 7px; text-align: left; }
  .learn-map__topics { padding-top: 42px; }
  .learn-map__topic { min-height: 48px; }
  .learn-overview__layout { grid-template-columns: 1fr; gap: 32px; }
  .learn-toc { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learn-toc > p { grid-column: 1 / -1; }
  .learn-overview__content { max-width: var(--lrn-reading); margin-inline: auto; }
}

/* ─── Спейсинг-напоминания: opt-in блок после retrieval (спека §6) ─────── */
.learn-reminder-optin {
  margin: 1rem 0 1.5rem;
  padding: 1.1rem clamp(1rem, 4vw, 1.4rem);
  background: var(--lrn-surface);
  border: 1px solid var(--lrn-rule);
  border-radius: var(--lrn-radius);
}
.learn-reminder-optin__text {
  margin: 0 0 .75rem;
  font-weight: 600;
  color: var(--lrn-ink);
  font-size: .98rem;
}
.learn-reminder-optin__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
}
.learn-reminder-optin__email {
  flex: 1 1 220px;
  min-width: 0;
  padding: .5rem .75rem;
  border: 1px solid var(--lrn-rule-strong);
  border-radius: 8px;
  background: var(--lrn-bg);
  color: var(--lrn-ink);
  font-family: var(--lrn-sans);
  font-size: .92rem;
}
.learn-reminder-optin__actions button {
  padding: .5rem .95rem;
  border: 1px solid var(--lrn-rule-strong);
  border-radius: 8px;
  background: var(--lrn-surface);
  color: var(--lrn-ink-soft);
  font-family: var(--lrn-sans);
  font-size: .92rem;
  font-weight: 500;
  cursor: pointer;
  transition: .15s;
}
.learn-reminder-optin__actions button:hover {
  color: var(--lrn-ink);
  border-color: var(--lrn-accent);
}
.learn-reminder-optin__actions [data-action="optin-email"] {
  background: var(--lrn-accent);
  border-color: var(--lrn-accent);
  color: #fff;
}
.learn-reminder-optin__status {
  margin: .6rem 0 0;
  font-size: .88rem;
  color: var(--lrn-ink-soft);
  min-height: 1.1em;
}

@media (max-width: 720px) {
  body.learn-body { font-size: 17px; }
  .learn-header__inner { min-height: 58px; padding: 8px 16px; gap: 9px; }
  .learn-brand__mark { width: 28px; height: 28px; flex-basis: 28px; }
  .learn-brand__section,
  .learn-nav-link--desktop { display: none; }
  .learn-theme-toggle { width: 36px; height: 36px; flex-basis: 36px; }
  .user-locale-switcher { min-height: 36px; }
  .user-locale-switcher__select { min-height: 34px; max-width: 94px; }
  .learn-nav-link--cta { min-height: 38px; padding: 0 12px; font-size: 14px; }
  .learn-nav-link--cta svg { display: none; }
  .learn-main,
  .learn-main--wide,
  .learn-main--unit { width: 100%; padding: 36px 16px 64px; }
  h1.learn-title,
  .learn-main--wide h1.learn-title { font-size: 40px; }
  .learn-hook { font-size: 19px; margin-bottom: 28px; }
  .learn-unit-sidebar { grid-template-columns: 1fr; gap: 20px; margin-bottom: 30px; }
  .learn-unit-route { padding: 16px; }
  .learn-unit-route__list {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 6px;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
  }
  .learn-unit-route__phase {
    flex: 0 0 188px;
    min-height: 112px;
    padding: 11px 11px 10px 39px;
    border: 1px solid var(--lrn-rule);
    border-radius: var(--lrn-radius-md);
    background: var(--lrn-bg);
    scroll-snap-align: start;
  }
  .learn-unit-route__phase::before { display: none; }
  .learn-unit-route__phase-head span { top: 12px; left: 11px; }
  .learn-unit-toc { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learn-unit-toc > p { grid-column: 1 / -1; }
  .learn-hub-hero { padding: 10px 0 32px; }
  .learn-section-head,
  .learn-map__head { display: block; margin-bottom: 18px; }
  .learn-section-head h2,
  .learn-map__head h2 { font-size: 29px; }
  .learn-section-head > p,
  .learn-map__head > p { margin-top: 8px; text-align: left; }
  .learn-map { margin-inline: -4px; padding: 18px 14px; }
  .learn-overview { margin-top: 56px; padding-top: 40px; }
  .learn-toc { grid-template-columns: 1fr; }
  .learn-article h2 {
    grid-template-columns: 27px minmax(0, 1fr);
    gap: 9px;
    margin-top: 44px;
    padding-top: 24px;
    font-size: 28px;
  }
  .learn-heading-icon { width: 25px; height: 25px; }
  .learn-prose-point { grid-template-columns: 18px minmax(0, 1fr); gap: 8px; }
  .learn-example { margin-inline: -4px; padding: 10px; }
  .learn-example__line { grid-template-columns: 18px minmax(0, 1fr); gap: 8px; padding: 8px; }
  .learn-scene { margin-inline: -4px; padding: 20px; }
  .learn-retrieval { padding: 20px; }
  .learn-retrieval-q > summary { align-items: flex-start; flex-wrap: wrap; }
  .learn-rq-type { order: -1; }
  .learn-cta-row { align-items: stretch; }
  .learn-cta { width: 100%; }
  .learn-footer__inner { min-height: 0; padding: 28px 16px; display: grid; }
  .learn-footer__nav { justify-content: flex-start; }
  .learn-scrolltop { right: 16px; bottom: 16px; width: 44px; height: 44px; }
}

@media (max-width: 480px) {
  .learn-brand__name { display: none; }
}

@media (max-width: 430px) {
  .learn-brand__name { font-size: 16px; }
  h1.learn-title,
  .learn-main--wide h1.learn-title { font-size: 36px; }
  .learn-hub-meta { display: grid; grid-template-columns: 1fr 1fr; }
  .learn-hub-meta span { text-align: center; }
  .learn-map__phase-head strong { width: calc(100vw - 122px); }
  .learn-unit-toc { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}