/* ==========================================================================
   Clase · el material con el que se dicta la sesión
   Índice, prosa de enseñanza, guion del facilitador, lecciones, contrastes,
   casos, cierre, glosario y preguntas frecuentes.
   ========================================================================== */

/* --- Índice de la sesión --------------------------------------------------- */

.toc {
  position: sticky;
  top: calc(var(--header-height) + 0.6rem);
  z-index: 20;
  margin: var(--space-6) 0;
  padding: 1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fffffff2;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.toc__label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
  color: var(--text-faint);
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.toc ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.toc a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--forest);
  font-size: 0.78rem;
  font-weight: 600;
  transition: border-color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}

.toc a:hover {
  border-color: var(--blue);
  background: var(--soft-blue);
}

.toc a span {
  color: var(--blue-dark);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

/* --- Prosa de enseñanza ---------------------------------------------------- */

.prosa > p {
  max-width: 68ch;
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.78;
}

.prosa > p:last-child {
  margin-bottom: 0;
}

.bloque {
  margin: var(--space-7) 0;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.bloque__cierre,
.cierre__siguiente,
.caso__leccion {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-top: 1.4rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-xs);
  background: var(--soft-green);
  color: var(--green-dark);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.6;
}

.bloque__cierre .icon,
.cierre__siguiente .icon,
.caso__leccion .icon {
  flex: none;
  margin-top: 0.15rem;
}

/* --- Preguntas para el grupo ----------------------------------------------- */

.ask {
  margin-top: 1.5rem;
  padding: 1.1rem 1.3rem;
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  background: var(--soft-blue);
}

.ask h3,
.ask h4 {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
  color: var(--blue-deep);
  font-size: var(--text-xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ask ul {
  display: grid;
  gap: 0.5rem;
}

.ask li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--blue-deep);
  font-size: 0.92rem;
  line-height: 1.6;
}

.ask li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  opacity: 0.5;
}

.ask--compact {
  margin-top: 0;
}

/* --- Guion del facilitador ------------------------------------------------- */

.script {
  overflow: hidden;
  margin-top: 1.4rem;
  border: 1px dashed #a9c4b6;
  border-radius: var(--radius-md);
  background: #fbfdfa;
}

.script__tag {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px dashed #cfdcd4;
  color: var(--green-dark);
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.script__scroll {
  overflow-x: auto;
}

.script table {
  width: 100%;
  min-width: 46rem;
  border-collapse: collapse;
}

.script th,
.script td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.84rem;
  line-height: 1.55;
  text-align: left;
  vertical-align: top;
}

.script thead th {
  color: var(--text-faint);
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.script tbody th {
  width: 11rem;
  color: var(--forest);
  font-weight: 700;
}

.script__n {
  display: inline-grid;
  place-items: center;
  width: 1.4rem;
  height: 1.4rem;
  margin-right: 0.4rem;
  border-radius: 50%;
  background: var(--forest);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.64rem;
}

.script td {
  color: var(--text-muted);
}

.script__say {
  color: var(--blue-deep);
  font-style: italic;
}

.script__watch {
  color: var(--green-dark);
}

/* --- Lecciones ------------------------------------------------------------- */

.lecciones {
  margin: var(--space-8) 0;
}

.leccion {
  margin-bottom: 1.2rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.leccion__head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.leccion__n {
  display: grid;
  place-items: center;
  flex: none;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-xs);
  background: var(--blue-dark);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 800;
}

.leccion__meta {
  color: var(--blue-dark);
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.leccion__head h3 {
  margin-top: 0.25rem;
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  letter-spacing: -0.035em;
}

.leccion__idea {
  margin-bottom: 1.4rem;
  padding: 1rem 1.2rem;
  border-left: 4px solid var(--green);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  background: var(--soft-green);
  color: var(--green-dark);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.6;
}

.leccion__turismo {
  margin-top: 1.4rem;
  padding: 1.1rem 1.3rem;
  border-radius: var(--radius-xs);
  background: var(--surface-muted);
}

.leccion__turismo h4 {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.5rem;
  color: var(--blue-dark);
  font-size: var(--text-xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.leccion__turismo p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* --- Contraste: así no / así sí -------------------------------------------- */

.contraste {
  display: grid;
  gap: 1rem;
  margin-top: 1.4rem;
}

.contraste__par {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.contraste__mal,
.contraste__bien {
  padding: 1rem;
  border-radius: var(--radius-xs);
}

.contraste__mal {
  border-left: 3px solid var(--red);
  background: #fdf1f0;
}

.contraste__bien {
  border-left: 3px solid var(--green);
  background: var(--soft-green);
}

.contraste__mal > span,
.contraste__bien > span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.45rem;
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contraste__mal > span {
  color: var(--red);
}

.contraste__bien > span {
  color: var(--green-dark);
}

.contraste__mal p,
.contraste__bien p {
  color: var(--text);
  font-size: 0.88rem;
  line-height: 1.6;
}

.contraste__porque {
  grid-column: 1 / -1;
  color: var(--text-soft);
  font-size: 0.84rem;
  font-style: italic;
  line-height: 1.6;
}

/* --- Pie de la lección ----------------------------------------------------- */

.leccion__pie {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1.4rem;
}

.leccion__error {
  padding: 1.1rem 1.3rem;
  border-radius: var(--radius-xs);
  background: #fdf1f0;
}

.leccion__error h4 {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.5rem;
  color: var(--red);
  font-size: var(--text-xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.leccion__error p {
  color: #7c3b38;
  font-size: 0.88rem;
  line-height: 1.6;
}

.micro {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.2rem;
  padding: 1.1rem 1.3rem;
  border: 1px dashed var(--blue);
  border-radius: var(--radius-xs);
  background: #f5fbfd;
}

.micro__tag {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--blue-deep);
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.micro p {
  color: var(--blue-deep);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* --- Notas de facilitación ------------------------------------------------- */

.facilitacion {
  overflow: hidden;
  margin: 1.2rem 0;
  border: 1px dashed #a9c4b6;
  border-radius: var(--radius-sm);
  background: #fbfdfa;
}

.facilitacion summary {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1rem;
  color: var(--green-dark);
  font-size: var(--text-sm);
  font-weight: 800;
  list-style: none;
  cursor: pointer;
}

.facilitacion summary::-webkit-details-marker {
  display: none;
}

.facilitacion summary .chevron {
  flex: none;
  margin-left: auto;
  transition: transform var(--dur-fast) var(--ease-out);
}

.facilitacion[open] summary .chevron {
  transform: rotate(90deg);
}

.facilitacion__body {
  display: grid;
  gap: 1rem;
  padding: 0 1rem 1.1rem;
}

.facilitacion h4 {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.45rem;
  color: var(--text-faint);
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.facilitacion__decir p {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-xs);
  background: #fff;
  color: var(--blue-deep);
  font-size: 0.9rem;
  font-style: italic;
  line-height: 1.65;
}

.facilitacion__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.facilitacion ul {
  display: grid;
  gap: 0.4rem;
}

.facilitacion li {
  position: relative;
  padding-left: 0.9rem;
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.facilitacion li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  opacity: 0.45;
}

.variantes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.variante {
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-xs);
  background: #fff;
}

.variante span {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--green-dark);
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.variante p {
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

/* --- Casos ----------------------------------------------------------------- */

.casos {
  margin: var(--space-7) 0;
}

.caso {
  margin-bottom: 0.85rem;
  padding: clamp(1.3rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.caso h3 {
  margin-bottom: 1rem;
  font-size: 1.15rem;
}

.caso dl {
  display: grid;
  gap: 0.85rem;
}

.caso dt {
  color: var(--blue-dark);
  font-size: var(--text-2xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.caso dd {
  margin-top: 0.2rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* --- Cierre ---------------------------------------------------------------- */

.cierre {
  margin: var(--space-7) 0;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border: 1px solid var(--line);
  border-left: 5px solid var(--green);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.cierre__sintesis {
  display: grid;
  gap: 0.7rem;
  counter-reset: sintesis;
}

.cierre__sintesis li {
  position: relative;
  padding-left: 2.2rem;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.65;
}

.cierre__sintesis li::before {
  counter-increment: sintesis;
  content: counter(sintesis);
  position: absolute;
  top: 0.1rem;
  left: 0;
  display: grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--green-dark);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
}

.cierre__eval {
  margin-top: 1.5rem;
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-xs);
  background: var(--surface-muted);
}

.cierre__eval h3 {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
  color: var(--blue-dark);
  font-size: var(--text-xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.cierre__eval ul {
  display: grid;
  gap: 0.5rem;
}

.cierre__eval li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.cierre__eval li::before {
  content: "\003F";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 800;
}

/* --- Glosario y preguntas frecuentes --------------------------------------- */

.referencia {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: var(--space-7) 0;
}

.glosario,
.faq {
  padding: clamp(1.3rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.glosario h3,
.faq h3 {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1rem;
  color: var(--blue-dark);
  font-size: var(--text-xs);
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.glosario dl {
  display: grid;
  gap: 0.8rem;
}

.glosario dt {
  color: var(--forest);
  font-size: 0.92rem;
  font-weight: 750;
}

.glosario dd {
  margin-top: 0.15rem;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

.faq details {
  border-bottom: 1px solid var(--line-soft);
}

.faq details:last-child {
  border-bottom: 0;
}

.faq summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0;
  color: var(--forest);
  font-size: 0.92rem;
  font-weight: 700;
  list-style: none;
  cursor: pointer;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary .chevron {
  flex: none;
  margin-left: auto;
  transition: transform var(--dur-fast) var(--ease-out);
}

.faq details[open] summary .chevron {
  transform: rotate(90deg);
}

.faq details p {
  padding: 0 0 0.9rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* --- Adaptación ------------------------------------------------------------ */

@media (width <= 980px) {
  .toc {
    position: static;
  }
}

@media (width <= 820px) {
  .contraste__par,
  .leccion__pie,
  .facilitacion__cols,
  .variantes,
  .referencia {
    grid-template-columns: 1fr;
  }
}

@media (width <= 580px) {
  .leccion__head {
    gap: 0.7rem;
  }

  .prosa > p {
    font-size: 0.96rem;
  }
}

/* ==========================================================================
   Pestañas de la sesión
   Cada bloque de la clase es un panel; solo uno está visible. La pestaña
   activa vive en la dirección, así que se puede enlazar y volver atrás.
   ========================================================================== */

.tabs {
  margin-top: var(--space-6);
}

.tabs__bar {
  position: sticky;
  top: calc(var(--header-height) - 1px);
  z-index: 20;
  display: flex;
  gap: 0.3rem;
  overflow-x: auto;
  margin-bottom: var(--space-6);
  padding: 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fffffff2;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
  scrollbar-width: thin;
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  flex: none;
  padding: 0.55rem 0.85rem;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 650;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.tab span {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.tab:hover {
  background: var(--surface-muted);
  color: var(--forest);
}

.tab[aria-selected="true"] {
  background: var(--forest);
  color: #fff;
  font-weight: 750;
}

.tab[aria-selected="true"] span {
  color: var(--green-light);
}

.tabpanel {
  animation: entrada-panel var(--dur-base) var(--ease-out);
}

@keyframes entrada-panel {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.tabs__pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
}

@media (width <= 980px) {
  .tabs__bar {
    position: static;
  }
}

@media (width <= 580px) {
  .tabs__pager {
    flex-direction: column;
    align-items: stretch;
  }
}

/* --- Aviso: el marco conceptual es material de estudio --------------------- */

.aviso-estudio {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: var(--space-5);
  padding: 1rem 1.2rem;
  border: 1px dashed #cfe5ec;
  border-radius: var(--radius-xs);
  background: #f5fbfd;
  color: var(--blue-deep);
  font-size: 0.9rem;
  line-height: 1.65;
}

.aviso-estudio .icon {
  flex: none;
  margin-top: 0.15rem;
}