.microlearning {
  --ml-ink: #10233f;
  --ml-muted: #5e6e84;
  --ml-line: #dce3eb;
  --ml-paper: #ffffff;
  --ml-soft: #f3f7fa;
  /* El "azul" del modulo ES el turquesa de marca del rediseno Academia AIU:
     #00707d como texto (5.8:1 sobre blanco) y #005c66 como tono fuerte. Los
     nombres --ml-blue* se conservan porque los usan ~60 reglas. */
  --ml-blue: #00707d;
  --ml-blue-dark: #005c66;
  --ml-green: #177652;
  --ml-orange: #e87722;
  color: var(--ml-ink);
  min-height: 100%;
  background: #f4f7f8;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
}

.microlearning *, .microlearning *::before, .microlearning *::after { box-sizing: border-box; }
.microlearning button, .microlearning input, .microlearning select, .microlearning textarea { font: inherit; }
.microlearning button { letter-spacing: 0; }

.microlearning-kicker {
  display: block;
  margin-bottom: 7px;
  color: var(--ml-blue);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.3;
  text-transform: uppercase;
}

.microlearning-hero {
  width: calc(100% - 40px);
  margin: 20px;
  padding: 30px clamp(20px, 4vw, 56px) 24px;
  background: var(--ml-paper);
  border: 1px solid var(--ml-line);
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(20, 40, 65, .07);
}

.microlearning-hero h1, .microlearning-class-header h1 {
  margin: 0;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.14;
}

.microlearning-hero p, .microlearning-class-header p {
  max-width: 720px;
  margin: 8px 0 0;
  color: var(--ml-muted);
  font-size: 15px;
  line-height: 1.55;
}

.microlearning-route-grid {
  display: grid;
  gap: 18px;
  width: min(1120px, calc(100% - 40px));
  margin: 24px auto;
}

/* Progreso propio del alumno: sobrio, informativo y sin comparaciones. */
.microlearning-self-progress {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto 24px;
  padding: 24px;
  background: var(--ml-paper);
  border: 1px solid var(--ml-line);
  border-radius: 20px;
  box-shadow: 0 10px 28px rgba(20, 40, 65, .08);
}

.microlearning-self-progress > header h2 { margin: 0; font-size: 23px; line-height: 1.2; }
.microlearning-self-progress > header p { max-width: 680px; margin: 7px 0 0; color: var(--ml-muted); font-size: 13px; line-height: 1.5; }
.microlearning-self-metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 18px 0 0; }
.microlearning-self-metrics > div { min-width: 0; padding: 14px 10px; text-align: center; background: var(--ml-soft); border: 1px solid var(--ml-line); border-radius: 20px; }
.microlearning-self-metrics > div:last-child { grid-column: 1 / -1; }
.microlearning-self-metrics dt { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; min-height: 52px; color: var(--ml-muted); font-size: 10px; line-height: 1.4; font-weight: 800; text-transform: uppercase; }
.microlearning-self-metrics dt > span { min-width: 0; max-width: 100%; overflow-wrap: anywhere; }
.microlearning-self-metrics dd { margin: 8px 0 0; overflow-wrap: anywhere; color: var(--ml-blue-dark); font-size: 26px; font-weight: 800; line-height: 1.2; }
.microlearning-self-metrics dd small { display: block; margin-top: 4px; }
.microlearning-self-metrics dd small { color: var(--ml-muted); font-size: 12px; font-weight: 700; }
.microlearning-self-progress .microlearning-progress { min-width: 0; margin-top: 18px; padding: 0; }
.microlearning-self-next { margin: 11px 0 0; color: var(--ml-muted); font-size: 13px; line-height: 1.5; }
.microlearning-self-next strong { color: var(--ml-ink); }
.microlearning-self-start { margin: 14px 0 0; padding: 13px 15px; color: var(--ml-ink); background: var(--ml-soft); border: 1px solid var(--ml-line); border-radius: 20px; font-size: 13px; line-height: 1.5; }
.microlearning-self-ledger { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--ml-line); }
.microlearning-self-ledger h3 { margin: 0 0 10px; color: var(--ml-muted); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.microlearning-self-ledger ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.microlearning-self-ledger li { display: grid; grid-template-columns: 54px minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 10px 13px; background: var(--ml-soft); border: 1px solid var(--ml-line); border-radius: 20px; }
.microlearning-self-ledger strong { display: block; overflow-wrap: anywhere; font-size: 13px; line-height: 1.35; }
.microlearning-self-ledger small { display: block; margin-top: 3px; color: var(--ml-muted); font-size: 11px; line-height: 1.4; }
.microlearning-self-ledger time { color: var(--ml-muted); font-size: 11px; white-space: nowrap; }
.microlearning-self-points { display: grid; place-items: center; min-height: 30px; color: #fff; background: var(--ml-green); border-radius: 20px; font-size: 12px; font-weight: 800; }
.microlearning-help-label, .microlearning-progress-label { display: inline-flex; align-items: center; gap: 7px; }
.microlearning-progress-help { display: inline-flex; text-transform: none; letter-spacing: normal; }
.microlearning-self-progress .aiu-info-trigger { width: 22px; height: 22px; min-width: 22px; font-size: 11px; }
.microlearning-self-progress .aiu-info-tooltip { left: auto; right: 0; width: min(280px, calc(100vw - 44px)); text-align: left; text-transform: none; letter-spacing: normal; }
.microlearning-self-progress .aiu-info-tooltip::before { left: auto; right: 9px; }

.microlearning-video-showcase {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto 24px;
  padding: 24px;
  background: #fff8ed;
  border: 1px solid #f0ce98;
  border-radius: 20px;
  box-shadow: 0 10px 28px rgba(85, 57, 22, .08);
}
.microlearning-video-showcase > header { display: flex; align-items: flex-start; justify-content: space-between; gap: 22px; margin-bottom: 18px; }
.microlearning-video-showcase > summary {
  cursor: pointer; list-style: none;
  display: flex; flex-direction: column; gap: 4px;
}
.microlearning-video-showcase > summary::-webkit-details-marker { display: none; }
.microlearning-video-showcase > summary strong { font-size: 16px; }
.microlearning-video-showcase > summary small { color: #705b3c; }
.microlearning-video-showcase:not([open]) { padding-bottom: 18px; }
.microlearning-video-showcase[open] > summary { margin-bottom: 14px; }
.microlearning-video-showcase h2 { margin: 0; font-size: 23px; }
.microlearning-video-showcase p { max-width: 680px; margin: 6px 0 0; color: #705b3c; line-height: 1.5; }
.microlearning-showcase-all { flex: 0 0 auto; padding: 11px 17px; color: #fff; background: #c9551e; border-radius: 20px; font-size: 12px; font-weight: 800; text-decoration: none; }
.microlearning-video-showcase > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.microlearning-video-showcase > div > a { display: grid; grid-template-columns: 34px minmax(0, 1fr) 32px; align-items: center; gap: 11px; min-height: 70px; padding: 11px 13px; color: var(--ml-ink); background: #fff; border: 1px solid #ead8bd; border-radius: 20px; text-decoration: none; }
.microlearning-video-showcase > div > a:hover, .microlearning-video-showcase > div > a:focus-visible { border-color: #d87942; outline: 3px solid #f8d8bd; transform: translateY(-1px); }
/* El naranja era #d8672a: con texto blanco de 11px daba 3.56:1, por debajo del
   4.5:1 que exige AA para texto normal. Oscurecido lo justo para cumplir (4.98:1)
   conservando el naranja de marca. Aparecio auditando el contraste, no estaba
   reportado. */
.microlearning-video-showcase > div > a > span:first-child { display: grid; place-items: center; width: 32px; height: 32px; color: #fff; background: #b6521c; border-radius: 12px; font-size: 11px; font-weight: 900; }
.microlearning-video-showcase > div > a > span:nth-child(2) { display: grid; gap: 3px; min-width: 0; }
.microlearning-video-showcase > div small { color: #a04419; font-size: 10px; font-weight: 850; text-transform: uppercase; }
.microlearning-video-showcase > div strong { overflow-wrap: anywhere; font-size: 12px; line-height: 1.35; }
.microlearning-video-showcase > div i { display: grid; place-items: center; width: 30px; height: 30px; color: #fff; background: #00808d; border-radius: 50%; font-size: 11px; font-style: normal; }

.microlearning-route {
  overflow: hidden;
  background: var(--ml-paper);
  border: 1px solid var(--ml-line);
  border-radius: 20px;
  box-shadow: 0 4px 16px rgba(20, 40, 65, .06);
}

.microlearning-route > header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px 12px;
}

.microlearning-route > header span, .microlearning-course-heading span {
  color: var(--ml-blue);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.microlearning-route h2, .microlearning-course-heading h3 { margin: 4px 0 0; line-height: 1.25; }
.microlearning-route h2 { font-size: 20px; }
.microlearning-route time { color: var(--ml-muted); font-size: 12px; }

.microlearning-progress { min-width: 180px; padding: 0 24px 20px; }
.microlearning-progress > div:first-child { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 7px; font-size: 12px; }
.microlearning-progress-track { overflow: hidden; height: 7px; background: #dbe4eb; border-radius: 4px; }
.microlearning-progress-track i { display: block; height: 100%; background: var(--ml-green); border-radius: inherit; transition: width .25s ease; }

.microlearning-course-list { border-top: 1px solid var(--ml-line); }
.microlearning-course-list > section { padding: 20px 24px 24px; }
.microlearning-course-list > section + section { border-top: 1px solid var(--ml-line); }
.microlearning-course-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 14px; }
.microlearning-course-heading h3 { font-size: 17px; }
.microlearning-course-heading p { margin: 5px 0 0; color: var(--ml-muted); font-size: 13px; }
.microlearning-course-heading > strong { color: var(--ml-muted); font-size: 12px; white-space: nowrap; }
.microlearning-course-list ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; margin: 0; padding: 0; list-style: none; }
.microlearning-course-list li button {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 11px;
  width: 100%;
  min-height: 66px;
  padding: 10px 12px;
  color: var(--ml-ink);
  text-align: left;
  background: var(--ml-soft);
  border: 1px solid transparent;
  border-radius: 20px;
  cursor: pointer;
}
.microlearning-course-list li button:hover, .microlearning-course-list li button:focus-visible { background: #e8f2fa; border-color: #8fb9da; outline: 2px solid transparent; }
.microlearning-course-list li button:disabled { opacity: .55; cursor: not-allowed; }
.microlearning-course-list li button strong { display: block; overflow-wrap: anywhere; font-size: 13px; line-height: 1.35; }
.microlearning-course-list li button small { display: block; margin-top: 4px; color: var(--ml-muted); font-size: 11px; }
.microlearning-course-list li button i { color: var(--ml-blue); font-size: 24px; font-style: normal; }
.microlearning-lesson-index { display: grid; place-items: center; width: 32px; height: 32px; background: #dbeaf5; border-radius: 50%; color: var(--ml-blue-dark); font-size: 12px; font-weight: 800; }

.microlearning-hero { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.microlearning-how { display: grid; grid-template-columns: 28px auto 24px 28px auto 24px 28px auto 24px 28px auto; align-items: center; gap: 7px; color: var(--ml-muted); font-size: 12px; white-space: nowrap; }
.microlearning-how span { display: grid; place-items: center; width: 28px; height: 28px; color: #fff; background: var(--ml-blue); border-radius: 50%; font-weight: 800; }
.microlearning-how b { color: var(--ml-ink); }
.microlearning-how i { height: 1px; background: #b9c7d3; }

.microlearning-module { --module-accent: #00707d; overflow: hidden; background: var(--ml-paper); border: 1px solid var(--ml-line); border-radius: 20px; box-shadow: 0 10px 28px rgba(20, 40, 65, .08); }
.microlearning-module:nth-child(4n + 2) { --module-accent: #17806d; }
.microlearning-module:nth-child(4n + 3) { --module-accent: #d8672a; }
.microlearning-module:nth-child(4n + 4) { --module-accent: #9b4d87; }
.microlearning-module > summary { display: grid; grid-template-columns: 46px minmax(0, 1fr) 24px; align-items: center; gap: 14px; min-height: 82px; padding: 16px 20px; cursor: pointer; list-style: none; }
.microlearning-module > summary::-webkit-details-marker { display: none; }
.microlearning-module > summary:hover, .microlearning-module > summary:focus-visible { background: #f6f9fb; outline: 2px solid transparent; }
.microlearning-module > summary > span:nth-child(2) { display: grid; gap: 3px; }
.microlearning-module > summary small, .microlearning-lesson-group header small { color: var(--module-accent); font-size: 10px; font-weight: 800; text-transform: uppercase; }
.microlearning-module > summary strong { overflow-wrap: anywhere; font-size: 18px; }
.microlearning-module > summary em { color: var(--ml-muted); font-size: 12px; font-style: normal; }
.microlearning-module > summary > i { color: var(--ml-blue); font-size: 24px; font-style: normal; text-align: center; transition: transform .2s ease; }
.microlearning-module[open] > summary > i { transform: rotate(45deg); }
.microlearning-module-icon { display: grid; place-items: center; width: 42px; height: 42px; color: #fff; background: var(--module-accent); border-radius: 14px; font-size: 12px; font-weight: 900; }
.microlearning-module-body { border-top: 1px solid var(--ml-line); }
.microlearning-module-body:not(:has(.microlearning-lesson-group))::after { content: "Tu ruta ya esta asignada. Las microlecciones apareceran cuando finalice la revision y publicacion del contenido."; display: block; margin: 18px 22px 22px; padding: 18px 20px; color: #536476; background: #f1f7f6; border: 1px solid #cde4df; border-radius: 20px; font-size: 13px; line-height: 1.55; }
.microlearning-module-description { margin: 0; padding: 16px 22px; color: var(--ml-muted); background: #f8fafc; font-size: 13px; line-height: 1.5; }
.microlearning-lesson-group { padding: 20px 22px 24px; }
.microlearning-lesson-group + .microlearning-lesson-group { border-top: 1px solid var(--ml-line); }
.microlearning-lesson-group > header { display: flex; align-items: center; gap: 12px; margin-bottom: 13px; }
.microlearning-lesson-group > header > span { display: grid; place-items: center; width: 30px; height: 30px; color: var(--ml-blue-dark); background: #edf4f8; border-radius: 50%; font-size: 12px; font-weight: 800; }
.microlearning-lesson-group h3 { margin: 2px 0 0; font-size: 16px; }
.microlearning-lesson-group ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 0; padding: 0; list-style: none; }
.microlearning-lesson-group button { display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; align-items: center; gap: 12px; width: 100%; min-height: 76px; padding: 12px; color: var(--ml-ink); text-align: left; background: var(--ml-soft); border: 1px solid transparent; border-radius: 20px; cursor: pointer; }
.microlearning-lesson-group button:hover, .microlearning-lesson-group button:focus-visible { background: #e8f2fa; border-color: #8fb9da; outline: 2px solid transparent; }
.microlearning-lesson-group button > span:nth-child(2) { display: grid; gap: 3px; min-width: 0; }
.microlearning-lesson-group button small, .microlearning-lesson-group button em { color: var(--ml-muted); font-size: 11px; font-style: normal; }
.microlearning-lesson-group button strong { overflow-wrap: anywhere; font-size: 13px; line-height: 1.35; }
/* El :not() no es cosmetico. Esta regla es mas especifica (0-1-2) que
   .microlearning-open-action (0-1-0), asi que le ganaba el color y pintaba el
   texto en --ml-blue #1261a0 sobre el fondo #156ca5 de la pastilla: dos azules
   casi identicos, contraste ~1:1, "Abrir clase" invisible. Excluyendo la
   pastilla, cada intencion se queda con lo suyo. */
.microlearning-lesson-group button > i:not(.microlearning-open-action) { color: var(--ml-blue); font-size: 12px; font-style: normal; font-weight: 800; }
.microlearning-lesson-group button > i.microlearning-open-action { font-size: 12px; font-weight: 800; }
.microlearning-lesson-group li.has-video button { background: #fff8ed; border-color: #efcf9e; }
.microlearning-video-badge { display: inline-flex; align-items: center; gap: 5px; width: fit-content; padding: 4px 8px; color: #9a3e12; background: #ffe3c7; border-radius: 20px; font-size: 10px; font-style: normal; }
.microlearning-video-badge span { color: #d45b20; }

.microlearning-stage-label { display: flex; align-items: center; gap: 11px; margin: 0 0 10px; }
.microlearning-stage-label > span { display: grid; place-items: center; width: 30px; height: 30px; flex: 0 0 auto; color: #fff; background: var(--ml-blue); border-radius: 50%; font-size: 12px; font-weight: 800; }
.microlearning-stage-label > div { display: grid; gap: 2px; }
.microlearning-stage-label strong { font-size: 14px; }
.microlearning-stage-label small { color: var(--ml-muted); font-size: 11px; }
.microlearning-class-grid .microlearning-reinforcement + * { margin-top: 0; }
.microlearning-class-grid main > .microlearning-stage-label:not(:first-child) { margin-top: 22px; }

.microlearning-state {
  display: flex;
  min-height: 520px;
  padding: 40px 24px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.microlearning-state-symbol { display: grid; place-items: center; width: 62px; height: 62px; margin-bottom: 18px; color: var(--ml-blue); background: #dfedf7; border-radius: 8px; font-size: 18px; font-weight: 900; }
.microlearning-error .microlearning-state-symbol { color: #9e341e; background: #fce4df; }
.microlearning-state h2 { margin: 0; font-size: 24px; }
.microlearning-state p { max-width: 520px; margin: 9px 0 20px; color: var(--ml-muted); line-height: 1.55; }
.microlearning-spinner { width: 42px; height: 42px; margin-bottom: 20px; border: 4px solid #cfdae4; border-top-color: var(--ml-blue); border-radius: 50%; animation: ml-spin .8s linear infinite; }
@keyframes ml-spin { to { transform: rotate(360deg); } }

.microlearning-class-header {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr) minmax(180px, 260px);
  align-items: center;
  gap: 18px;
  padding: 20px clamp(18px, 3vw, 40px);
  background: var(--ml-paper);
  border-bottom: 1px solid var(--ml-line);
}
.microlearning-class-header .microlearning-progress { padding: 0; }
.microlearning-back { width: 40px; height: 40px; color: var(--ml-blue-dark); background: var(--ml-soft); border: 1px solid var(--ml-line); border-radius: 20px; cursor: pointer; font-size: 22px; }
.microlearning-back.is-labeled { display: inline-flex; align-items: center; gap: 8px; width: auto; min-width: 40px; padding: 0 13px; font-size: 13px; font-weight: 800; white-space: nowrap; }
.microlearning-back.is-labeled > span:first-child { font-size: 19px; line-height: 1; }
.microlearning-back:hover, .microlearning-back:focus-visible { border-color: var(--ml-blue); outline: 2px solid #a9d0ed; }
.microlearning-class-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(340px, .75fr); gap: 20px; width: min(1320px, calc(100% - 36px)); margin: 20px auto; align-items: start; }
.microlearning-class-grid > main, .microlearning-class-grid > aside { min-width: 0; }
.microlearning-class-grid > aside { position: sticky; top: 18px; max-height: calc(100vh - 36px); overflow: auto; scrollbar-gutter: stable; }
.microlearning-lesson-stage, .microlearning-practice-stage { width: min(1050px, calc(100% - 36px)); margin: 24px auto 40px; }
/* La microtarea compartia ancho con la clase (1050px) y luego se estrechaba a
   820px, de modo que el enunciado se partia en muchas lineas cortas y costaba
   leerlo. Igualado al de la clase: cabe mas texto por linea y el bloque se lee
   en unas tres. */
.microlearning-practice-stage { width: min(1050px, calc(100% - 36px)); padding: 26px; background: #f1f7fc; border: 1px solid #c9ddec; border-radius: 20px; }
.microlearning-stage-label { display: flex; align-items: center; gap: 12px; margin: 22px 0 12px; padding: 14px 18px; border-radius: 20px; }
.microlearning-stage-label > span { display: grid; place-items: center; width: 38px; height: 38px; flex: 0 0 auto; color: #fff; border-radius: 50%; font-weight: 900; }
.microlearning-stage-label strong, .microlearning-stage-label small { display: block; }
.microlearning-stage-label small { margin-top: 3px; color: #52657b; }
.microlearning-stage-label.is-video { background: #e7f3fc; color: #0d4f7c; }
.microlearning-stage-label.is-video > span { background: #1475ad; }
.microlearning-stage-label.is-reinforcement { background: #edf7ef; color: #225f3b; }
.microlearning-stage-label.is-reinforcement > span { background: #227a49; }
.microlearning-stage-label.is-practice { margin-top: 0; background: #fff0e5; color: #8a4218; }
.microlearning-stage-label.is-practice > span { background: #e36b25; }
.microlearning-lesson-actions { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 22px; padding: 22px 24px; background: #fff4dc; border: 1px solid #f0ca78; border-radius: 20px; }
.microlearning-lesson-actions div { display: grid; gap: 5px; }
.microlearning-lesson-actions span { color: #6b5731; }
.microlearning-lesson-actions .microlearning-button { min-height: 48px; padding-inline: 24px; background: #d95d23; border-color: #d95d23; }
.microlearning-open-action { min-width: 104px; padding: 10px 14px; color: #fff; background: #00808d; border-radius: 20px; font-style: normal; text-align: center; }

.microlearning-video { overflow: hidden; margin: 0 0 18px; background: #081423; border-radius: 20px; box-shadow: 0 8px 24px rgba(15, 35, 58, .16); }
.microlearning-video video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #050b12; object-fit: contain; }
.microlearning-video figcaption { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 12px 16px; color: #f7fafc; font-size: 12px; }
.microlearning-video details { max-width: 70%; }
.microlearning-video summary { cursor: pointer; color: #acd6f3; }
.microlearning-video details p { max-height: 160px; overflow: auto; margin: 10px 0 0; color: #dfe9f1; line-height: 1.5; }
.microlearning-video-fallback { display: flex; align-items: center; gap: 16px; min-height: 150px; margin-bottom: 18px; padding: 24px; background: #e5edf4; border: 1px dashed #9cb1c4; border-radius: 20px; }
.microlearning-video-fallback > span { display: grid; place-items: center; width: 52px; height: 52px; flex: 0 0 auto; color: var(--ml-blue); background: var(--ml-paper); border-radius: 50%; }
.microlearning-video-fallback p { margin: 5px 0 0; color: var(--ml-muted); line-height: 1.5; }

.microlearning-reinforcement { padding: clamp(24px, 4vw, 46px); background: var(--ml-paper); border: 1px solid var(--ml-line); border-radius: 20px; }
.microlearning-reinforcement h2 { margin: 0; font-size: clamp(24px, 3vw, 34px); line-height: 1.18; }
.microlearning-reinforcement h3 { margin: 30px 0 13px; font-size: 18px; }
.microlearning-lead { color: #40536b; font-size: 18px; line-height: 1.75; }
.microlearning-reinforcement aside { margin: 26px 0; padding: 20px 22px; background: #e8f3fa; border-left: 4px solid var(--ml-blue); border-radius: 20px; }
.microlearning-reinforcement aside p { margin: 7px 0 0; line-height: 1.65; }
.microlearning-reinforcement dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.microlearning-reinforcement dl div { padding: 15px; background: var(--ml-soft); border-radius: 20px; }
.microlearning-reinforcement dt { font-weight: 800; }
.microlearning-reinforcement dd { margin: 6px 0 0; color: var(--ml-muted); line-height: 1.5; }
.microlearning-steps { margin: 0; padding: 0; list-style: none; }
.microlearning-steps li { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 13px; padding: 14px 0; border-bottom: 1px solid var(--ml-line); }
.microlearning-steps li > span { display: grid; place-items: center; width: 32px; height: 32px; color: #fff; background: var(--ml-blue); border-radius: 50%; font-weight: 800; }
.microlearning-steps p { margin: 5px 0; color: var(--ml-muted); line-height: 1.55; }
.microlearning-steps small { color: var(--ml-green); }
.microlearning-example { padding: 20px; background: #f8f3e9; border-left: 4px solid var(--ml-orange); border-radius: 20px; }
.microlearning-example h3 { margin-top: 0; }
.microlearning-takeaways { padding: 18px 22px; background: #edf6f1; border-radius: 20px; }
.microlearning-takeaways h3 { margin-top: 0; }
.microlearning-reinforcement ul { padding-left: 22px; color: #40536b; line-height: 1.65; }

.microlearning-practice, .microlearning-no-task { background: var(--ml-paper); border: 1px solid var(--ml-line); border-radius: 20px; box-shadow: 0 8px 24px rgba(20, 40, 65, .08); }
.microlearning-practice > header { display: flex; justify-content: space-between; gap: 15px; padding: 22px 22px 16px; border-bottom: 1px solid var(--ml-line); }
.microlearning-practice > header h2 { margin: 0; font-size: 21px; line-height: 1.25; }
.microlearning-practice > header p { margin: 7px 0 0; color: var(--ml-muted); font-size: 13px; line-height: 1.5; }
.microlearning-practice > header > strong { color: var(--ml-green); font-size: 12px; white-space: nowrap; }
.microlearning-pass-mark { display: inline-flex; width: fit-content; margin-top: 10px; padding: 5px 9px; color: #155a49; background: #dcefe8; border-radius: 999px; font-size: 11px; font-weight: 800; }
.microlearning-task-type { display: inline-flex; width: fit-content; margin: 0 0 9px; padding: 6px 10px; color: #6b3b12; background: #ffe4c4; border-radius: 20px; font-size: 11px; font-weight: 800; }
.microlearning-practice[data-task-visual="multiple_choice"] .microlearning-task-type { color: #68406b; background: #f4dff1; }
.microlearning-practice[data-task-visual="fill_drag"] .microlearning-task-type { color: #155a49; background: #dcefe8; }
.microlearning-practice[data-task-visual="matching"] .microlearning-task-type { color: #184f7a; background: #dcecf8; }
.microlearning-practice[data-task-visual="applied_task"] .microlearning-task-type { color: #724b0b; background: #fff0b8; }
.microlearning-preview-note { display: grid; gap: 4px; margin: 16px 22px 0; padding: 14px 16px; border: 1px solid #f1c36d; border-radius: 20px; background: #fff7df; color: #66420a; }
.microlearning-preview-note span { color: #77551e; }
/* Pista al pie del formulario en previsualizacion: explica que la actividad no
   se corrige todavia, para que el boton deshabilitado no se lea como averiado. */
.microlearning-preview-hint { flex: 1 1 260px; max-width: 60ch; color: var(--ml-muted); font-size: 12px; line-height: 1.5; }
.microlearning-task-dots { display: flex; gap: 7px; padding: 12px 22px 0; }
.microlearning-task-dots button { width: 30px; height: 30px; color: var(--ml-muted); background: var(--ml-soft); border: 1px solid var(--ml-line); border-radius: 50%; cursor: pointer; font-size: 11px; font-weight: 800; }
.microlearning-task-dots button.is-active { color: #fff; background: var(--ml-blue); border-color: var(--ml-blue); }
.microlearning-practice form { padding: 18px 22px 22px; }
.microlearning-prompt { margin: 0 0 16px; font-weight: 700; line-height: 1.5; }
.microlearning-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; counter-reset: answer; }
.microlearning-options label { --option-color: #00707d; --option-soft: #e0f0f5; position: relative; cursor: pointer; }
.microlearning-options label:nth-child(4n + 2) { --option-color: #17806d; --option-soft: #e2f3ed; }
.microlearning-options label:nth-child(4n + 3) { --option-color: #d8672a; --option-soft: #fff0e5; }
.microlearning-options label:nth-child(4n + 4) { --option-color: #9b4d87; --option-soft: #f7e9f3; }
.microlearning-options input { position: absolute; opacity: 0; }
.microlearning-options span { display: grid; grid-template-columns: 36px minmax(0, 1fr); align-items: center; gap: 11px; min-height: 72px; padding: 12px 14px; background: var(--option-soft); border: 2px solid transparent; border-radius: 20px; line-height: 1.4; }
.microlearning-options span b { display: grid; place-items: center; width: 34px; height: 34px; color: #fff; background: var(--option-color); border-radius: 12px; font-size: 13px; }
.microlearning-options span em { color: var(--ml-ink); font-style: normal; }
.microlearning-options input:checked + span { border-color: var(--option-color); box-shadow: 0 5px 16px color-mix(in srgb, var(--option-color) 20%, transparent); }
.microlearning-options input:checked + span b { outline: 4px solid #fff; box-shadow: 0 0 0 6px var(--option-color); }
.microlearning-options input:focus-visible + span { outline: 3px solid #acd3ef; }
.microlearning-fill, .microlearning-matching { display: grid; gap: 16px; }
.microlearning-token-bank { display: flex; flex-wrap: wrap; gap: 9px; padding: 16px; background: #eaf4fb; border: 1px dashed #86b8db; border-radius: 20px; }
.microlearning-token-bank button { display: inline-flex; align-items: center; gap: 8px; padding: 10px 13px; color: #fff; background: #00808d; border: 0; border-radius: 20px; cursor: grab; }
.microlearning-token-bank button.is-dragging { opacity: .55; cursor: grabbing; }
.microlearning-token-bank button:nth-child(3n + 2) { background: #17806d; }
.microlearning-token-bank button:nth-child(3n + 3) { background: #d8672a; }
.microlearning-token-bank button.is-selected { color: #fff; background: var(--ml-blue); }
.microlearning-slot-list, .microlearning-matching { display: grid; gap: 10px; }
.microlearning-slot-list label, .microlearning-matching label, .microlearning-applied { display: grid; gap: 8px; padding: 14px; color: var(--ml-ink); background: #f7fafc; border: 1px solid #d7e2ea; border-radius: 20px; font-size: 12px; font-weight: 700; }
.microlearning-slot-list label > small, .microlearning-matching label > small { color: var(--ml-muted); font-weight: 500; line-height: 1.4; }
.microlearning-drop-target { border-style: dashed !important; transition: border-color .16s ease, background .16s ease, box-shadow .16s ease; }
.microlearning-drop-target.is-drag-over { border-color: var(--ml-blue) !important; background: #eaf4fb !important; box-shadow: 0 0 0 4px rgba(0, 128, 141, .12); }
.microlearning-interaction-hint { margin: 0; padding: 12px 14px; color: var(--ml-muted); background: var(--ml-soft); border: 1px solid var(--ml-line); border-radius: 14px; font-size: 12px; line-height: 1.5; }
.microlearning-interaction-hint strong { color: var(--ml-ink); }
.microlearning select, .microlearning textarea { width: 100%; color: var(--ml-ink); background: #fff; border: 1px solid #aab8c6; border-radius: 20px; }
.microlearning select { min-height: 42px; padding: 8px 34px 8px 10px; }
.microlearning textarea { resize: vertical; padding: 11px; line-height: 1.5; }
.microlearning select:focus, .microlearning textarea:focus { border-color: var(--ml-blue); outline: 3px solid #d3e8f7; }
.microlearning-applied small { color: var(--ml-muted); font-weight: 400; line-height: 1.45; }
.microlearning-form-message { min-height: 20px; padding-top: 9px; color: #a43c25; font-size: 12px; font-weight: 700; }
.microlearning-practice form footer { display: flex; justify-content: flex-end; padding-top: 10px; }
/* Solo cuando hay pista de previsualizacion: el pie reparte en vez de alinear a
   la derecha, para que el motivo quede junto al boton y no debajo, suelto. */
.microlearning-practice form footer:has(.microlearning-preview-hint) { flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.microlearning-button { min-height: 40px; padding: 9px 16px; border: 1px solid var(--ml-blue); border-radius: 20px; cursor: pointer; font-weight: 750; }
.microlearning-button.primary { color: #fff; background: var(--ml-blue); }
.microlearning-button.primary:hover, .microlearning-button.primary:focus-visible { background: var(--ml-blue-dark); outline: 3px solid #acd3ef; }
.microlearning-button:disabled { opacity: .55; cursor: wait; }
.microlearning-result { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 11px; margin: 14px 22px 0; padding: 13px; border-left: 4px solid; }
.microlearning-result > span { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; font-weight: 900; }
.microlearning-result p { margin: 4px 0; color: var(--ml-muted); font-size: 12px; line-height: 1.45; }
.microlearning-result-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 14px; }
.microlearning-result-score { display: grid; gap: 4px; min-width: 112px; padding: 12px 18px; border: 2px solid currentColor; border-radius: 14px; background: var(--surface); color: var(--text); }
.microlearning-result-score small { font-size: 12px; font-weight: 700; }
.microlearning-result-score strong { font-size: 30px; line-height: 1.1; font-variant-numeric: tabular-nums; }
.microlearning-result.is-passed { background: #e9f5ef; border-color: var(--ml-green); }
.microlearning-result.is-passed > span { color: #fff; background: var(--ml-green); }
.microlearning-result.is-failed { background: #fff2e8; border-color: var(--ml-orange); }
/* El relleno naranja no usa --ml-orange (#e87722): con texto blanco da 2.96:1,
   muy por debajo de AA, y es justo el aviso de intento fallido, donde peor
   sienta que cueste leerlo. Los rellenos verde y azul si cumplen (5.60 y 6.48)
   y se dejan como estaban. */
.microlearning-result.is-failed > span { color: #fff; background: #b6521c; }
.microlearning-result.is-pending_review { background: #e9f2fa; border-color: var(--ml-blue); }
.microlearning-result.is-pending_review > span { color: #fff; background: var(--ml-blue); }
.microlearning-no-task { padding: 24px; }
.microlearning-no-task p { color: var(--ml-muted); line-height: 1.5; }
/* Actividad guardada sin opciones para responder: aviso en lugar de controles vacios. */
.microlearning-task-unavailable { display: grid; gap: 8px; margin: 16px 22px 22px; padding: 16px; border: 1px solid #f1c36d; border-radius: 16px; background: #fff7df; color: #66420a; }
.microlearning-task-unavailable p { margin: 0; color: #77551e; line-height: 1.5; }
.microlearning-task-unavailable .microlearning-button { justify-self: start; }

@media (max-width: 980px) {
  .microlearning-hero { align-items: flex-start; flex-direction: column; }
  .microlearning-class-header { grid-template-columns: max-content minmax(0, 1fr); }
  .microlearning-class-header .microlearning-progress { grid-column: 2; }
  .microlearning-class-grid { grid-template-columns: 1fr; }
  .microlearning-lesson-actions { align-items: stretch; flex-direction: column; }
  .microlearning-class-grid > aside { position: static; max-height: none; overflow: visible; }
}

@media (max-width: 680px) {
  .microlearning-route-grid, .microlearning-class-grid { width: calc(100% - 22px); }
  .microlearning-how { grid-template-columns: 26px auto 26px auto 26px auto; white-space: normal; }
  .microlearning-how i { display: none; }
  .microlearning-lesson-group ol { grid-template-columns: 1fr; }
  .microlearning-self-progress { width: calc(100% - 22px); padding: 18px; }
  .microlearning-self-metrics { grid-template-columns: 1fr; }
  .microlearning-self-ledger li { grid-template-columns: 54px minmax(0, 1fr); }
  .microlearning-self-ledger time { grid-column: 2; }
  .microlearning-video-showcase { width: calc(100% - 22px); padding: 18px; }
  .microlearning-video-showcase > header { align-items: stretch; flex-direction: column; }
  .microlearning-video-showcase > div, .microlearning-options { grid-template-columns: 1fr; }
  .microlearning-lesson-group { padding: 16px 12px 18px; }
  .microlearning-lesson-group button { grid-template-columns: 32px minmax(0, 1fr); }
  .microlearning-lesson-group button > i { display: none; }
  .microlearning-course-list ol { grid-template-columns: 1fr; }
  .microlearning-route > header, .microlearning-course-heading { flex-direction: column; }
  .microlearning-class-header { grid-template-columns: 1fr; padding: 16px 12px; }
  .microlearning-class-header .microlearning-progress { grid-column: 1; }
  .microlearning-back.is-labeled { justify-self: start; min-height: 40px; }
  .microlearning-class-header h1 { font-size: 23px; }
  .microlearning-reinforcement { padding: 24px 18px; }
  .microlearning-reinforcement dl { grid-template-columns: 1fr; }
  .microlearning-video figcaption { align-items: flex-start; flex-direction: column; }
  .microlearning-video details { max-width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .microlearning *, .microlearning *::before, .microlearning *::after { scroll-behavior: auto !important; transition: none !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* ------------------------------------------------------------------
   Modo oscuro
   ------------------------------------------------------------------
   Esta hoja no tenia ni una regla de tema, asi que en oscuro conservaba
   sus fondos claros y el texto quedaba ilegible.

   Se resuelve en dos capas. Primero las variables, que gobiernan la mayor
   parte del archivo y arrastran solas casi todo. Despues las reglas con
   color fijo, invirtiendo la luminosidad y conservando el tono para que
   lo ambar siga siendo ambar en vez de aplanarse a gris; los neutros se
   alinean con las superficies oscuras de styles.css.

   Todo es aditivo: ninguna regla del modo claro se toca, de modo que el
   tema claro no puede regresionar por este cambio.
   ------------------------------------------------------------------ */
[data-theme="dark"] .microlearning {
  --ml-ink: #f0f3f6;
  --ml-muted: #9aa7b6;
  --ml-line: #333b45;
  --ml-paper: #171c22;
  --ml-soft: #1c2229;
  --ml-blue: #6fd3de;
  --ml-blue-dark: #8ddfe8;
  --ml-green: #58bc87;
  --ml-orange: #f39858;
}
[data-theme="dark"] .microlearning { background: #1a1f21; }
[data-theme="dark"] .microlearning-video-showcase { background: #261f15; }
[data-theme="dark"] .microlearning-video-showcase p { color: #d2c2ab; }
[data-theme="dark"] .microlearning-video-showcase > div > a { background: #171c22; }
[data-theme="dark"] .microlearning-video-showcase > div small { color: #e0ac93; }
[data-theme="dark"] .microlearning-progress-track { background: #1f262b; }
[data-theme="dark"] .microlearning-course-list li button:hover, [data-theme="dark"] .microlearning-course-list li button:focus-visible { background: #151e26; }
[data-theme="dark"] .microlearning-lesson-index { background: #1a2730; }
[data-theme="dark"] .microlearning-how i { background: #293035; }
[data-theme="dark"] .microlearning-module > summary:hover, [data-theme="dark"] .microlearning-module > summary:focus-visible { background: #171f24; }
[data-theme="dark"] .microlearning-module-body:not(:has(.microlearning-lesson-group))::after { color: #abb7c4; background: #192220; }
[data-theme="dark"] .microlearning-module-description { background: #171d24; }
[data-theme="dark"] .microlearning-lesson-group > header > span { background: #161f24; }
[data-theme="dark"] .microlearning-lesson-group button:hover, [data-theme="dark"] .microlearning-lesson-group button:focus-visible { background: #151e26; }
[data-theme="dark"] .microlearning-lesson-group li.has-video button { background: #261f15; }
[data-theme="dark"] .microlearning-video-badge { color: #e2b29b; background: #30251a; }
[data-theme="dark"] .microlearning-video-badge span { color: #dfaa90; }
[data-theme="dark"] .microlearning-state-symbol { background: #1a2730; }
[data-theme="dark"] .microlearning-error .microlearning-state-symbol { color: #df9f92; background: #261815; }
[data-theme="dark"] .microlearning-practice-stage { background: #151e26; }
[data-theme="dark"] .microlearning-stage-label small { color: #a9b7c6; }
[data-theme="dark"] .microlearning-stage-label.is-video { background: #151f26; color: #afd1e8; }
[data-theme="dark"] .microlearning-stage-label.is-reinforcement { background: #17241a; color: #b8e6cb; }
[data-theme="dark"] .microlearning-stage-label.is-practice { background: #261c15; color: #e4b9a1; }
[data-theme="dark"] .microlearning-lesson-actions { background: #262115; }
[data-theme="dark"] .microlearning-lesson-actions span { color: #dacbaf; }
[data-theme="dark"] .microlearning-video-fallback { background: #1d262d; }
[data-theme="dark"] .microlearning-lead { color: #afbdcf; }
[data-theme="dark"] .microlearning-reinforcement aside { background: #151f26; }
[data-theme="dark"] .microlearning-example { background: #262015; }
[data-theme="dark"] .microlearning-takeaways { background: #18231d; }
[data-theme="dark"] .microlearning-reinforcement ul { color: #afbdcf; }
[data-theme="dark"] .microlearning-task-type { color: #eaceb6; background: #30261a; }
[data-theme="dark"] .microlearning-practice[data-task-visual="multiple_choice"] .microlearning-task-type { color: #cdafcf; background: #2f1b2c; }
[data-theme="dark"] .microlearning-practice[data-task-visual="fill_drag"] .microlearning-task-type { color: #beece1; background: #1d2d27; }
[data-theme="dark"] .microlearning-practice[data-task-visual="matching"] .microlearning-task-type { color: #aacce6; background: #1a2730; }
[data-theme="dark"] .microlearning-practice[data-task-visual="applied_task"] .microlearning-task-type { color: #ead6b6; background: #302b1a; }
[data-theme="dark"] .microlearning-preview-note { background: #262215; color: #ecdabe; }
[data-theme="dark"] .microlearning-preview-note span { color: #e6cea8; }
[data-theme="dark"] .microlearning-options label { color: #98c0e1; }
[data-theme="dark"] .microlearning-options label:nth-child(4n + 2) { color: #a7e6da; }
[data-theme="dark"] .microlearning-options label:nth-child(4n + 3) { color: #dfac90; }
[data-theme="dark"] .microlearning-options label:nth-child(4n + 4) { color: #d0a0c3; }
[data-theme="dark"] .microlearning-token-bank { background: #151f26; }
[data-theme="dark"] .microlearning-slot-list label, [data-theme="dark"] .microlearning-matching label, [data-theme="dark"] .microlearning-applied { background: #161f25; }
[data-theme="dark"] .microlearning select, [data-theme="dark"] .microlearning textarea { background: #171c22; }
[data-theme="dark"] .microlearning-form-message { color: #df9f90; }
[data-theme="dark"] .microlearning-result.is-passed { background: #17231d; }
[data-theme="dark"] .microlearning-result.is-failed { background: #261c15; }
[data-theme="dark"] .microlearning-result.is-pending_review { background: #151e26; }

/* Relleno de acento en oscuro.
   --ml-blue, --ml-green y --ml-orange se aclaran en oscuro porque su uso mas
   frecuente es como TEXTO sobre fondo oscuro. Pero estos elementos los usan al
   reves, como FONDO con texto blanco, y blanco sobre un acento claro cae a
   ~2.3:1. En oscuro el relleno lleva tinta oscura, que sobre el mismo acento
   supera 8:1. Detectado auditando contraste, no leyendo el CSS. */
[data-theme="dark"] .microlearning-self-points,
[data-theme="dark"] .microlearning-how span,
[data-theme="dark"] .microlearning-stage-label > span,
[data-theme="dark"] .microlearning-steps li > span,
[data-theme="dark"] .microlearning-task-dots button.is-active,
[data-theme="dark"] .microlearning-token-bank button.is-selected,
[data-theme="dark"] .microlearning-button.primary,
[data-theme="dark"] .microlearning-result.is-passed > span,
[data-theme="dark"] .microlearning-result.is-pending_review > span { color: #0d1117; }
/* `.is-failed` queda fuera de la lista de arriba a proposito: su fondo ya no es
   la variable que se aclara en oscuro sino el naranja fijo #b6521c, sobre el
   que lo legible es el blanco (4.98:1). Invertirlo tambien lo dejaba en 3.80:1. */

/* ====================================================================
   "Mi aprendizaje" segun el prototipo Academia AIU: la senda.
   --------------------------------------------------------------------
   Los valores son los MEDIDOS en el prototipo (radios, rellenos, tamanos
   y sombras), no aproximaciones. Las unicas desviaciones son de color y
   estan anotadas donde ocurren: el diseno usa grises (#7B8698, #8C96A3,
   #9AA5B4) que sobre blanco quedan entre 3.0:1 y 3.9:1, por debajo de AA
   para texto normal. Se sustituyen por --ml-muted, del mismo gris azulado
   y ya verificado, para no publicar texto ilegible.
   ==================================================================== */
.microlearning-catalog.aiu-ruta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  width: min(1120px, calc(100% - 40px));
  margin: 24px auto;
  font-family: Manrope, "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
}
.aiu-ruta-main { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.aiu-ruta-side { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
/* Los paneles heredados se centraban con ancho propio; dentro de la rejilla
   ocupan su columna. */
.aiu-ruta .microlearning-video-showcase,
.aiu-ruta .microlearning-self-progress { width: 100%; margin: 0; }
.aiu-icon { display: block; flex: none; }

.aiu-ruta-head {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 22px; border-radius: 22px;
  background: var(--ml-paper); box-shadow: 0 1px 2px rgba(13, 22, 53, .06);
}
.aiu-ruta-head-icon {
  display: grid; place-items: center; width: 48px; height: 48px;
  border-radius: 15px; background: var(--brand-soft); color: var(--brand); font-size: 20px;
}
.aiu-ruta-head-copy { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.aiu-ruta-head-copy strong { font-size: 17px; font-weight: 800; color: var(--ml-ink); line-height: 1.3; }
.aiu-ruta-head-copy small { font-size: 12.5px; font-weight: 600; color: var(--ml-muted); }
.aiu-ruta-head-progress { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; min-width: 150px; }
.aiu-ruta-head-progress > span { font-size: 12px; font-weight: 800; color: var(--brand); }
.aiu-ruta-track { width: 150px; height: 7px; border-radius: 99px; background: var(--ml-soft); overflow: hidden; }
.aiu-ruta-track > i { display: block; height: 100%; border-radius: 99px; background: var(--brand-accent); }

.aiu-senda {
  position: relative; padding: 26px 22px; border-radius: 24px; overflow: hidden;
  background: var(--ml-paper); box-shadow: 0 1px 2px rgba(13, 22, 53, .06);
}
.aiu-senda-spine {
  position: absolute; left: calc(50% - 1px); top: 80px; bottom: 60px; width: 2px;
  background: repeating-linear-gradient(var(--ml-line) 0 8px, transparent 8px 16px);
}
.aiu-senda-steps { position: relative; display: flex; flex-direction: column; gap: 14px; }
.aiu-senda-intro { display: flex; flex-direction: column; align-items: center; gap: 4px; margin-bottom: 6px; text-align: center; }
.aiu-senda-intro span { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--ml-muted); }
.aiu-senda-intro strong { font-size: 19px; font-weight: 800; color: var(--ml-ink); line-height: 1.3; }
.aiu-senda-count { margin: 14px 0 0; text-align: center; font-size: 11.5px; font-weight: 700; color: var(--ml-muted); }

.aiu-senda-pager {
  display: grid;
  grid-template-columns: minmax(104px, auto) 1fr minmax(104px, auto);
  align-items: center;
  gap: 12px;
  max-width: 560px;
  margin: 22px auto 4px;
  padding: 10px;
  border: 1px solid var(--ml-line);
  border-radius: 16px;
  background: var(--ml-paper);
}
.aiu-senda-pager span { color: var(--ml-muted); font-size: 12px; font-weight: 700; text-align: center; }
.aiu-senda-pager button {
  min-height: 38px;
  border: 1px solid var(--ml-line);
  border-radius: 12px;
  background: var(--ml-soft);
  color: var(--ml-ink);
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}
.aiu-senda-pager button:not(:disabled):hover { border-color: var(--ml-blue); color: var(--ml-blue-dark); }
.aiu-senda-pager button:disabled { cursor: default; opacity: .45; }

@media (max-width: 680px) {
  .aiu-senda-pager { grid-template-columns: 1fr 1fr; }
  .aiu-senda-pager span { grid-column: 1 / -1; grid-row: 1; }
}
.aiu-step-group { display: flex; justify-content: center; margin: 8px 0 2px; }
.aiu-step-group > span {
  padding: 5px 12px; border-radius: 99px; background: var(--ml-soft);
  color: var(--ml-muted); font-size: 11px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase;
}

.aiu-step { display: grid; grid-template-columns: 1fr 74px 1fr; align-items: center; }
/* Keep the copy and checkpoint in one row, including right-side steps. */
.aiu-step > :first-child, .aiu-step-node { grid-row: 1; }
.aiu-step.is-left > :first-child { grid-column: 1; }
.aiu-step.is-right > :first-child { grid-column: 3; }
.aiu-step-node { grid-column: 2; justify-self: center; }

.aiu-step-copy {
  display: flex; flex-direction: column; gap: 3px;
  padding: 6px 8px; border: 0; border-radius: 12px; background: transparent;
}
button.aiu-step-copy:hover, button.aiu-step-copy:focus-visible { background: var(--ml-soft); }
.aiu-step.is-left .aiu-step-copy { align-items: flex-end; text-align: right; margin-right: 6px; }
.aiu-step.is-right .aiu-step-copy { align-items: flex-start; text-align: left; margin-left: 6px; }
.aiu-step-copy strong { font-size: 14px; font-weight: 750; color: var(--ml-ink); line-height: 1.35; }
.aiu-step-copy small { font-size: 11.5px; font-weight: 600; color: var(--ml-muted); }
/* El diseno apaga el titulo de lo pendiente a #9AA5B4 (2.6:1). Se mantiene la
   jerarquia -mas claro que lo hecho- pero dentro del gris ya verificado. */
.aiu-step.is-todo .aiu-step-copy strong { color: var(--ml-muted); font-weight: 700; }

.aiu-step-node {
  display: grid; place-items: center; width: 48px; height: 48px;
  border-radius: 16px; font-size: 19px; font-weight: 800;
}
.aiu-step-node.is-done { background: var(--brand-accent); color: #fff; box-shadow: 0 6px 16px rgba(0, 163, 182, .35); }
.aiu-step-node.is-todo { background: var(--ml-soft); color: var(--ml-muted); font-size: 16px; }
.aiu-step-node.is-current {
  position: relative; width: 56px; height: 56px; border-radius: 18px;
  background: #0d1635; color: #8fe3ec; font-size: 15px; box-shadow: 0 10px 24px rgba(13, 22, 53, .28);
}
.aiu-step-node.is-current > i { position: absolute; inset: -6px; border-radius: 22px; border: 2px solid rgba(0, 163, 182, .4); }
.aiu-step-node.is-cert {
  width: 52px; height: 52px; border-radius: 17px;
  font-size: 20px;
}
.aiu-step-node.is-cert.is-pending {
  background: transparent; color: var(--ml-muted);
  box-shadow: none; border: 1.5px dashed rgba(110, 122, 150, .55);
  opacity: .72;
}
.aiu-step-node.is-cert.is-earned {
  background: #0e298c; color: #fff;
  box-shadow: 0 10px 22px rgba(14, 41, 140, .3);
  opacity: 1; border: 0;
}

.aiu-step.is-current { padding: 10px 0; }
.aiu-step-card {
  display: flex; flex-direction: column; gap: 8px; padding: 16px; border-radius: 19px;
  background: var(--surface-subtle); box-shadow: inset 0 0 0 1.5px var(--brand-accent);
}
.aiu-step.is-left .aiu-step-card { margin-right: 6px; align-items: flex-end; text-align: right; }
.aiu-step.is-right .aiu-step-card { margin-left: 6px; }
.aiu-step-now { font-size: 10.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--brand); }
.aiu-step-card strong { font-size: 15px; font-weight: 800; color: var(--ml-ink); line-height: 1.35; }
.aiu-step-card small { font-size: 12px; font-weight: 600; line-height: 1.5; color: var(--ml-muted); }
.aiu-step-card .aiu-step-meta { font-size: 11.5px; }
/* Mismo criterio que la CTA de Inicio: el relleno del diseno (#00A3B6) con
   etiqueta blanca da 3.04:1, asi que se profundiza a 4.70:1. */
.aiu-step-cta {
  align-self: flex-start; margin-top: 2px;
  display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 16px;
  border: 0; border-radius: 12px; background: #00808d; color: #fff; font-size: 13px; font-weight: 800;
}
.aiu-step.is-left .aiu-step-cta { align-self: flex-end; }

/* A2: CTA de vuelta cuando la ruta activa quedo oculta o fuera del panel. */
.aiu-route-return {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  width: 100%;
  margin: 0 0 12px;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--brand) 35%, var(--ml-line));
  border-radius: 14px;
  background: color-mix(in srgb, var(--brand) 10%, var(--ml-paper));
  color: var(--ml-ink);
  text-align: left;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(15, 35, 58, .06);
}
.aiu-route-return > span {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--brand);
}
.aiu-route-return > strong {
  font-size: 14px;
  font-weight: 800;
  line-height: 1.3;
}
.aiu-route-return:hover,
.aiu-route-return:focus-visible {
  border-color: var(--brand);
  outline: none;
}
.aiu-ruta-main > .aiu-route-return { margin-bottom: 4px; }
[data-theme="dark"] .aiu-route-return {
  background: color-mix(in srgb, var(--brand) 18%, #0f1a24);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .35);
}

.aiu-ruta-panel {
  display: flex; flex-direction: column; gap: 12px; padding: 20px; border-radius: 22px;
  background: var(--ml-paper); box-shadow: 0 1px 2px rgba(13, 22, 53, .06);
}
.aiu-ruta-kicker { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--ml-muted); }
.aiu-ruta-kicker.is-light { color: #8fe3ec; }
.aiu-route-list { display: flex; flex-direction: column; gap: 8px; }
.aiu-route {
  display: flex; align-items: center; gap: 11px; padding: 11px;
  border: 0; border-radius: 14px; background: transparent; text-align: left;
}
.aiu-route:hover, .aiu-route:focus-visible { background: var(--ml-soft); }
.aiu-route.is-active { background: var(--border-soft); }
.aiu-route-icon {
  display: grid; place-items: center; width: 34px; height: 34px;
  border-radius: 11px; background: var(--ml-soft); color: var(--ml-muted); font-size: 15px;
}
.aiu-route-icon svg { width: 17px; height: 17px; stroke: currentColor; }
.aiu-route.is-active .aiu-route-icon { background: var(--ml-paper); color: var(--brand); }
.aiu-route-copy { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.aiu-route-copy strong { font-size: 13px; font-weight: 750; color: var(--ml-ink); }
.aiu-route-copy small { font-size: 11px; font-weight: 600; color: var(--ml-muted); }
.aiu-route-percent { font-size: 11px; font-weight: 800; color: var(--ml-muted); }
.aiu-route-percent.is-started { color: var(--brand); }
.aiu-route-more { padding: 0; border: 0; background: transparent; color: var(--brand); font-size: 12px; font-weight: 800; text-align: left; }

.aiu-ruta-review {
  display: flex; flex-direction: column; gap: 11px; padding: 20px;
  border-radius: 22px; background: #0d1635; color: #c6d6e8;
}
.aiu-ruta-review > strong { font-size: 15px; font-weight: 800; color: #fff; line-height: 1.35; }
.aiu-ruta-review > small { font-size: 12px; line-height: 1.5; }
.aiu-review-list { display: flex; flex-direction: column; gap: 6px; margin: 0; padding: 0; list-style: none; }
.aiu-review-list li { display: flex; flex-direction: column; gap: 1px; padding-bottom: 6px; border-bottom: 1px solid rgba(198, 214, 232, .16); }
.aiu-review-list li:last-child { padding-bottom: 0; border-bottom: 0; }
.aiu-review-list strong { font-size: 13px; font-weight: 700; color: #fff; }
.aiu-review-list small { font-size: 11px; color: #a9bed4; }
.aiu-ruta-review .aiu-step-cta { align-self: flex-start; margin-top: 4px; }

@media (max-width: 1080px) {
  .microlearning-catalog.aiu-ruta { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .microlearning-catalog.aiu-ruta { width: calc(100% - 24px); margin: 16px auto; gap: 16px; }
  .aiu-ruta-head { display: grid; grid-template-columns: 48px minmax(0, 1fr); align-items: center; }
  .aiu-ruta-head-progress { grid-column: 1 / -1; align-items: stretch; min-width: 0; }
  .aiu-ruta-head-progress > span { text-align: right; }
  .aiu-ruta-track { width: 100%; }
  .aiu-senda-spine { display: none; }
  .aiu-step { grid-template-columns: 56px minmax(0, 1fr); align-items: start; gap: 12px; }
  .aiu-step.is-left > :first-child, .aiu-step.is-right > :first-child { grid-column: 2; }
  .aiu-step-node { grid-column: 1; grid-row: 1; }
  .aiu-step.is-left .aiu-step-copy, .aiu-step.is-right .aiu-step-copy { align-items: flex-start; text-align: left; margin: 0; }
  .aiu-step.is-left .aiu-step-card, .aiu-step.is-right .aiu-step-card { margin: 0; align-items: flex-start; text-align: left; }
  .aiu-step.is-left .aiu-step-cta { align-self: flex-start; }
}

/* Modo oscuro de la senda. La mayoria ya viaja en --ml-*; aqui solo quedan
   los colores fijos que el diseno define en claro. */
[data-theme="dark"] .aiu-ruta-head,
[data-theme="dark"] .aiu-senda,
[data-theme="dark"] .aiu-ruta-panel { box-shadow: 0 1px 2px rgba(0, 0, 0, .4); }
[data-theme="dark"] .aiu-ruta-head-icon { background: #12343a; color: #7fd4de; }
[data-theme="dark"] .aiu-ruta-head-progress > span,
[data-theme="dark"] .aiu-step-now,
[data-theme="dark"] .aiu-route-percent.is-started,
[data-theme="dark"] .aiu-route-more,
[data-theme="dark"] .aiu-route.is-active .aiu-route-icon { color: #6fd3de; }
[data-theme="dark"] .aiu-route.is-active { background: #1f272f; }
[data-theme="dark"] .aiu-step-card { background: #182028; }

/* En la senda la accion no es una pastilla: el nodo ya es el peso visual y
   el prototipo no dibuja boton en los pasos que no son el actual. Se conserva
   la etiqueta -"Ver video" / "Abrir clase"- como enlace legible. */
.aiu-step-copy .microlearning-open-action {
  min-width: 0; padding: 0; border-radius: 0; text-align: inherit;
  background: transparent; color: var(--brand); font-size: 11.5px; font-weight: 800; font-style: normal;
}
[data-theme="dark"] .aiu-step-copy .microlearning-open-action { color: #6fd3de; }

/* ====================================================================
   "Leccion" segun el prototipo vLeccion: aula en dos columnas.
   --------------------------------------------------------------------
   Valores medidos: rejilla 1fr 340px, video 24 de radio sobre #0D1635 con
   aspecto 16:9, tarjeta didactica 24/22px, iconos de paso 52/17, tarjetas
   de rejilla 16/14px, "ASI NO"/"ASI SI" en rosa #FDF0F1 y verde #EAF7F0,
   opciones del quiz 15/1.5px de borde, paneles laterales 22/20px y panel
   AIU en azul noche. Desviaciones de color por AA, como en el resto.
   ==================================================================== */
.aiu-leccion .aiu-leccion-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  align-items: start;
}
.aiu-leccion-main { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.aiu-leccion-side { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.aiu-leccion-bar { display: flex; justify-content: flex-end; padding: 14px clamp(18px, 3vw, 40px) 0; }
.aiu-leccion-xp {
  padding: 6px 11px; border-radius: 10px;
  background: var(--brand-soft); color: var(--brand);
  font-size: 11.5px; font-weight: 800;
}

/* El reproductor real dentro del marco del diseno: 24 de radio, fondo azul
   noche y 16:9. Los controles siguen siendo los nativos del navegador: un
   cromo simulado sin funcion seria decorado, no reproductor. */
.aiu-leccion .microlearning-video {
  margin: 0; overflow: hidden; border-radius: 24px; background: #0d1635;
}
.aiu-leccion .microlearning-video video {
  display: block; width: 100%; aspect-ratio: 16 / 9; background: #122052; object-fit: contain;
}
.aiu-leccion .microlearning-video figcaption { padding: 14px 20px 16px; color: #c6d6e8; }
.aiu-leccion .microlearning-video figcaption strong { color: #fff; font-size: 13.5px; font-weight: 800; }
.aiu-leccion .microlearning-video-fallback { border-radius: 24px; }

/* La tarjeta didactica. */
.aiu-leccion .microlearning-reinforcement {
  display: flex; flex-direction: column; gap: 14px;
  padding: 22px; border-radius: 24px;
  background: var(--ml-paper); box-shadow: 0 1px 2px rgba(13, 22, 53, .06);
  border: 0;
}
.aiu-leccion .microlearning-reinforcement h2 {
  margin: 0; font-size: 21px; font-weight: 800; letter-spacing: -.01em; color: var(--ml-ink);
}
.aiu-leccion .microlearning-reinforcement h3 {
  margin: 6px 0 0; font-size: 17px; font-weight: 800; color: var(--ml-ink);
}
.aiu-leccion .microlearning-lead,
.aiu-leccion .microlearning-reinforcement p {
  font-size: 15px; line-height: 1.65; color: var(--ml-muted); max-width: 66ch;
}
.aiu-leccion .microlearning-reinforcement aside {
  border-radius: 16px; background: var(--surface-subtle); padding: 14px 16px;
}
.aiu-leccion .microlearning-reinforcement dl {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 0;
}
.aiu-leccion .microlearning-reinforcement dl > div {
  padding: 14px; border-radius: 16px; background: var(--surface-subtle);
}
.aiu-leccion .microlearning-reinforcement dt { font-size: 13.5px; font-weight: 800; color: var(--ml-ink); }
.aiu-leccion .microlearning-reinforcement dd { margin: 4px 0 0; font-size: 13.5px; line-height: 1.5; color: var(--ml-muted); }
.aiu-leccion .microlearning-steps li > span {
  width: 26px; height: 26px; border-radius: 8px; font-size: 12px; font-weight: 800;
}
/* Ejemplo resuelto: la situacion y la accion recomendada llevan el tratamiento
   "ASI NO"/"ASI SI" del prototipo. */
.aiu-leccion .microlearning-example {
  border-radius: 16px; background: var(--green-soft);
  box-shadow: inset 0 0 0 1px rgba(25, 115, 75, .25); border: 0;
}
.aiu-leccion .microlearning-example strong { color: var(--green); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.aiu-leccion .microlearning-reinforcement section:has(> ul) ul { margin: 0; padding-left: 18px; }
.aiu-leccion .microlearning-takeaways { border-radius: 16px; }

.aiu-leccion .microlearning-lesson-actions { border-radius: 20px; }

/* Practica: opciones como en el prototipo (15 de radio, borde 1.5px, letra en
   pastilla 26/8). Se estiliza el control real, no una maqueta. */
.aiu-leccion ~ * .microlearning-options label > span,
.aiu-leccion .microlearning-options label > span { border-radius: 15px; }

/* Panel de fuente. */
.aiu-leccion-source {
  display: flex; flex-direction: column; gap: 10px;
  padding: 20px; border-radius: 22px;
  background: var(--surface-subtle); box-shadow: inset 0 0 0 1px var(--border);
}
.aiu-leccion-source strong { font-size: 14px; font-weight: 800; color: var(--ml-ink); line-height: 1.4; overflow-wrap: anywhere; }
.aiu-leccion-source small { font-size: 12px; font-weight: 600; color: var(--ml-muted); line-height: 1.5; }
.aiu-leccion-source-open { align-self: flex-start; margin-top: 2px; }

@media (max-width: 1080px) {
  .aiu-leccion .aiu-leccion-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 680px) {
  .aiu-leccion-bar { padding: 12px 12px 0; }
}

[data-theme="dark"] .aiu-leccion .microlearning-reinforcement { box-shadow: 0 1px 2px rgba(0, 0, 0, .4); }
[data-theme="dark"] .aiu-leccion .microlearning-example { background: #17231d; box-shadow: inset 0 0 0 1px rgba(88, 188, 135, .3); }
[data-theme="dark"] .aiu-leccion .microlearning-example strong { color: #58bc87; }
[data-theme="dark"] .aiu-leccion-source { box-shadow: inset 0 0 0 1px var(--ml-line); }

/* El parrafo de reserva del <video> solo aparece cuando el navegador no
   puede reproducir; ahora vive sobre el marco azul noche y debe leerse. */
.aiu-leccion .microlearning-video video p,
.aiu-leccion .microlearning-video video a { color: #e0f0f5; }


/* Critica Academia p6: la demo no debe empujar el contenido de la ruta. */
.microlearning-video-showcase {
  margin-top: 1.25rem;
  opacity: 0.92;
}
.microlearning-video-showcase > summary {
  cursor: pointer;
}
.aiu-final-panel {
  margin: 1.5rem 0;
  padding: clamp(1rem, 2vw, 1.6rem);
  border: 1px solid var(--border, #d9e2eb);
  border-radius: 1rem;
  background: var(--surface, #fff);
}
.aiu-final-panel h2 { margin: .35rem 0 .65rem; }
.aiu-final-panel p { line-height: 1.5; }
.aiu-final-progress { display: flex; flex-wrap: wrap; gap: .25rem; align-items: baseline; }
.aiu-final-reasons { margin: .75rem 0; padding-left: 1.4rem; }
.aiu-final-reasons li + li { margin-top: .35rem; }
.aiu-final-confirm, .aiu-final-result, .aiu-final-uncertain, .aiu-final-certified {
  margin: 1rem 0;
  padding: .9rem 1rem;
  border-radius: .75rem;
  background: #edf5fb;
}
.aiu-final-uncertain { background: #fff1e9; }
.aiu-final-exam { margin-top: 1.1rem; }
.aiu-final-exam .exam-question { margin-block: 1rem; }
.aiu-final-exam [data-final-exam-error]:empty { display: none; }
.aiu-final-panel .microlearning-button { margin: .5rem .5rem .5rem 0; }

/* R23 (2026-09-21): actividad con intento registrado. El fieldset va
   deshabilitado a proposito; sin este estilo los controles parecian activos y
   las listas «no se desplegaban» (captura de produccion del usuario). */
.microlearning-locked-notice { display: grid; gap: 4px; margin: 0 0 14px; padding: 14px 16px; color: var(--ml-ink); background: #fff8e6; border: 1px solid #f0c36d; border-left: 4px solid #c27c00; border-radius: 14px; }
.microlearning-locked-notice strong { font-size: 14px; }
.microlearning-locked-notice p { margin: 0; font-size: 13px; line-height: 1.45; }
.microlearning-practice form.is-locked fieldset label { cursor: not-allowed; }
.microlearning-practice form.is-locked fieldset :is(select, input, textarea, button) { cursor: not-allowed; opacity: .6; background-color: #eef2f5; }
[data-theme="dark"] .microlearning-locked-notice { background: #2a2314; border-color: #6b5320; border-left-color: #e0a526; }
[data-theme="dark"] .microlearning-practice form.is-locked fieldset :is(select, input, textarea, button) { background-color: #1b2329; }
/* R42 (2026-09-24): la regla anterior volvía visibles el radio y la casilla
   nativos al calificar (círculo gris sobre el texto, casillas en la esquina).
   La tarjeta ya muestra la selección: siguen ocultos también deshabilitados. */
.microlearning-practice form.is-locked .microlearning-options input,
.microlearning-practice fieldset:disabled .microlearning-options input,
.microlearning-options label input:disabled { opacity: 0; }
/* Al llevar el resultado a la vista, que no quede bajo la barra superior fija. */
.microlearning-practice .microlearning-result { scroll-margin-top: 96px; }

/* R38 (2026-09-23): fragmento del documento y mensaje del autor después de responder. */
.microlearning-source-anchor{margin:14px 0;border-left:4px solid #00707d;background:#e3f4f5;padding:10px 14px;border-radius:0 12px 12px 0;color:#0c4a52}
.microlearning-source-anchor small{display:block;color:#00707d;font-weight:700;margin-bottom:4px}
.microlearning-source-anchor p{margin:0;white-space:pre-line}
.microlearning-author-feedback{margin:10px 0 4px;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.7);border:1px solid rgba(23,35,59,.12)}
.microlearning-author-feedback p{margin:0 0 4px}
.microlearning-author-feedback p:last-child{margin-bottom:0}