/* FISNEU-001 — Física y Estructura del Neumático · e-Learning */
:root {
  --curso-rojo: #c22e2e;
  --curso-rojo-suave: #fce8e8;
  --curso-rojo-osc: #c22e2e;
  --curso-gris: #6b7280;
  --curso-gris-osc: #3f3f46;
  --curso-texto: #18181b;
  --curso-texto-medio: #52525b;
  --curso-fondo: #f4f4f5;
  --curso-fondo-alt: #ffffff;
  --curso-borde: #e4e4e7;
  --curso-sombra: 0 8px 32px rgba(0, 0, 0, 0.08);
  --curso-sombra-suave: 0 2px 12px rgba(0, 0, 0, 0.06);
  --curso-radio: 14px;
  --curso-radio-sm: 10px;
  /* Márgenes horizontales: cómodos en celular; hasta ~200px (12.5rem) en escritorio */
  --pad-x: 1rem;
  --pad-y: 1.25rem;
  --curso-nav-lateral-w: min(300px, 100%);
  --curso-terracota: #b85c3c;
  --curso-nav-activo-texto: var(--curso-terracota);
  --curso-nav-panel: #f5f5f5;
}

@media (min-width: 400px) {
  :root {
    --pad-x: clamp(1rem, 4.2vw, 1.65rem);
    --pad-y: clamp(1.25rem, 4vw, 3.75rem);
  }
}

@media (min-width: 600px) {
  :root {
    --pad-x: clamp(1.15rem, 4.8vw, 2.75rem);
  }
}

@media (min-width: 768px) {
  :root {
    --pad-x: clamp(1.35rem, 5.5vw, 3.75rem);
  }
}

@media (min-width: 900px) {
  :root {
    --pad-x: clamp(1.65rem, 6vw, 5rem);
    --curso-nav-lateral-w: 300px;
  }
}

@media (min-width: 1200px) {
  :root {
    --pad-x: clamp(2.25rem, 9vw, 8rem);
  }
}

@media (min-width: 1440px) {
  :root {
    --pad-x: clamp(3rem, 12vw, 12.5rem);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body.curso {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--curso-texto);
  background: var(--curso-fondo);
  overflow-x: hidden;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

@supports (overflow: clip) {
  body.curso {
    overflow-x: clip;
  }
}

@media (max-width: 380px) {
  body.curso {
    font-size: 1rem;
    line-height: 1.6;
  }
}

/* ——— Navegación: recursos (lateral) + unidades (superior) ——— */
.curso-shell {
  display: flex;
  align-items: flex-start;
  width: 100%;
  max-width: 100%;
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

.curso-nav-lateral {
  width: var(--curso-nav-lateral-w);
  flex-shrink: 0;
  background: var(--curso-nav-panel);
  border-right: 1px solid var(--curso-borde);
  padding: 0.75rem 0 1.25rem;
  position: sticky;
  top: 0;
  align-self: flex-start;
  max-height: 100vh;
  max-height: 100dvh;
  overflow-y: auto;
  z-index: 3;
  -webkit-overflow-scrolling: touch;
  box-shadow: 4px 0 18px rgba(0, 0, 0, 0.04);
  will-change: width, opacity, max-height;
}

.curso-nav-lateral__titulo {
  margin: 0 1.25rem 0.85rem;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-align: center;
  color: var(--curso-gris);
}

/* Búsqueda en el contenido (debajo del título del menú lateral) */
.curso-nav-buscar {
  margin: 0 0.85rem 0.9rem 1.1rem;
}

.curso-nav-buscar__row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.curso-nav-buscar__lupa {
  flex-shrink: 0;
  display: flex;
  color: #52525b;
  width: 1.1rem;
  height: 1.1rem;
}

.curso-nav-buscar__lupa svg {
  width: 100%;
  height: 100%;
}

.curso-nav-buscar__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.45rem 0.55rem;
  font-size: 0.8125rem;
  line-height: 1.25;
  color: #171717;
  background: #fff;
  border: 1px solid #d4d4d8;
  border-radius: 8px;
  font-family: inherit;
}

.curso-nav-buscar__input::placeholder {
  color: #71717a;
}

.curso-nav-buscar__input:focus {
  outline: 2px solid rgba(185, 28, 28, 0.35);
  outline-offset: 1px;
  border-color: #a1a1aa;
}

.curso-nav-buscar__pager {
  display: flex;
  flex-shrink: 0;
  gap: 0.28rem;
}

.curso-nav-buscar__pager-btn {
  width: 1.85rem;
  height: 1.85rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  line-height: 1;
  font-weight: 600;
  color: #64748b;
  background: #fafafa;
  border: 1px solid #d4d4d8;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.curso-nav-buscar__pager-btn:hover:not(:disabled) {
  background: #fff;
  color: #475569;
  border-color: #a1a1aa;
}

.curso-nav-buscar__pager-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.curso-nav-buscar__status.curso-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

mark.curso-buscar-hit {
  background: rgba(250, 204, 21, 0.45);
  color: inherit;
  padding: 0.06em 0;
  border-radius: 2px;
}

mark.curso-buscar-hit.curso-buscar-hit--activo {
  background: rgba(251, 191, 36, 0.85);
  box-shadow: 0 0 0 2px rgba(185, 28, 28, 0.25);
}

@media (max-width: 720px) {
  .curso-nav-buscar__row {
    flex-wrap: wrap;
  }

  .curso-nav-buscar__pager {
    margin-left: auto;
  }
}

/* Barras de progreso (lateral, debajo del menú de anclas; paleta :root del curso) */
.curso-progreso-barras {
  margin: 0.65rem 0.75rem 0.85rem 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--curso-borde);
}

.curso-progreso-barras__bloque + .curso-progreso-barras__bloque {
  margin-top: 0.95rem;
}

.curso-progreso-barras__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.curso-progreso-barras__label {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--curso-texto-medio);
  line-height: 1.25;
}

.curso-progreso-barras__meta {
  flex-shrink: 0;
  text-align: right;
}

.curso-progreso-barras__frac {
  display: block;
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--curso-texto-medio);
  line-height: 1.2;
}

.curso-progreso-barras__pct {
  display: block;
  margin-top: 0.1rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--curso-gris);
  line-height: 1.2;
}

.curso-progreso-barras__track {
  height: 10px;
  border-radius: 999px;
  background: var(--curso-borde);
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.06);
}

.curso-progreso-barras__fill {
  height: 100%;
  width: 0%;
  max-width: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--curso-rojo) 0%, var(--curso-terracota) 100%);
  box-shadow: 0 0 0 1px rgba(194, 46, 46, 0.12);
  transition: width 0.18s ease;
}

.curso-nav-lateral__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.curso-nav-lateral__list > li {
  border-bottom: 1px solid #e8e8e8;
}

.curso-nav-lateral__list > li:first-child {
  border-top: 1px solid #e8e8e8;
}

.curso-nav-lateral__list a {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1.15rem 1.1rem 1.15rem 0.85rem;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.35;
  font-weight: 700;
  color: #171717;
  text-decoration: none;
  border-left: 5px solid transparent;
  background: transparent;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.curso-nav-lateral__list a:hover {
  background: rgba(255, 255, 255, 0.65);
  color: var(--curso-terracota);
}

.curso-nav-lateral__list a:hover .curso-nav-lateral__ico {
  color: var(--curso-terracota);
}

/* Ítem activo del lateral (lo asigna curso-progreso.js) */
.curso-nav-lateral__list a.is-actual {
  color: var(--curso-nav-activo-texto);
  background: #fff;
  border-left-color: var(--curso-rojo);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

/* Icono tipo lista / menú */
.curso-nav-lateral__icon {
  flex-shrink: 0;
  width: 22px;
  height: 18px;
  margin-top: 2px;
  position: relative;
  color: #52525b;
}

.curso-nav-lateral__icon--lines::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  box-shadow: 0 6px 0 currentColor, 0 12px 0 currentColor;
}

/* Icono tipo evaluación (cuadrado con ?) */
.curso-nav-lateral__icon--eval {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  flex-shrink: 0;
  border: 2px solid #52525b;
  border-radius: 4px;
  color: #52525b;
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
  box-sizing: border-box;
}

.curso-nav-lateral__icon--eval::before {
  content: "?";
}

/* Iconos SVG del menú lateral (mismo ancho que .curso-nav-lateral__icon) */
.curso-nav-lateral__ico {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #52525b;
}

.curso-nav-lateral__svg {
  width: 18px;
  height: 18px;
  display: block;
  flex-shrink: 0;
}

.curso-nav-lateral__list a.is-actual .curso-nav-lateral__ico {
  color: var(--curso-nav-activo-texto);
}

.curso-nav-lateral__text {
  flex: 1;
  min-width: 0;
}

/* Anillos de progreso (--nav-ring-fill 0…1, asignado por curso-progreso.js al hacer scroll) */
.curso-nav-lateral__ring {
  --nav-ring-fill: 0;
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  margin-top: 0;
  border-radius: 50%;
  box-sizing: border-box;
  background: conic-gradient(
    from -90deg at 50% 50%,
    #c22e2e 0turn,
    #c22e2e calc(var(--nav-ring-fill, 0) * 1turn),
    #d4d4d4 calc(var(--nav-ring-fill, 0) * 1turn),
    #d4d4d4 1turn
  );
  -webkit-mask-image: radial-gradient(
    circle at center,
    transparent 9px,
    #000 9.25px,
    #000 12.25px,
    transparent 12.6px
  );
  mask-image: radial-gradient(
    circle at center,
    transparent 9px,
    #000 9.25px,
    #000 12.25px,
    transparent 12.6px
  );
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
}

/* Completado: mismo relleno total + fino contorno (coherente con el estilo anterior) */
.curso-nav-lateral__ring--completo {
  box-shadow: 0 0 0 1px rgba(194, 46, 46, 0.22);
}

.curso-nav-lateral__ring--pendiente,
.curso-nav-lateral__ring--actual {
  box-shadow: none;
}

.curso-shell__body [id] {
  scroll-margin-top: 4.75rem;
}

@media (max-width: 720px) {
  .curso-shell__body [id] {
    scroll-margin-top: 6.75rem;
  }
}

.curso-shell__main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.curso-nav-top {
  --curso-nav-top-bg: #ececec;
  --curso-nav-top-texto: #4a4a4a;
  position: sticky;
  top: 0;
  z-index: 4;
  background: var(--curso-nav-top-bg);
  border-bottom: 2px solid var(--curso-rojo);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: row;
  align-items: stretch;
}

.curso-nav-top__menu-toggle {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  min-width: 3rem;
  min-height: 100%;
  padding: 0;
  margin: 0;
  border: none;
  border-right: 1px solid rgba(0, 0, 0, 0.1);
  background: #e2e2e2;
  color: var(--curso-nav-top-texto);
  cursor: pointer;
  transition: background 0.22s ease, color 0.22s ease, box-shadow 0.22s ease;
}

.curso-nav-top__menu-toggle:hover {
  background: #d4d4d4;
  color: var(--curso-rojo);
}

.curso-nav-top__menu-toggle:focus-visible {
  outline: 2px solid var(--curso-rojo);
  outline-offset: -2px;
  z-index: 1;
}

.curso-nav-top__menu-toggle-ico {
  display: block;
  transition: transform 0.45s cubic-bezier(0.34, 1.2, 0.64, 1);
}

.curso-shell--nav-collapsed .curso-nav-top__menu-toggle-ico {
  transform: rotate(180deg);
}

.curso-nav-top__list {
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
  flex: 1;
  min-width: 0;
}

.curso-nav-top__list > li {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
}

.curso-nav-top__list a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 0.65rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--curso-nav-top-texto);
  text-decoration: none;
  background: var(--curso-nav-top-bg);
  border-radius: 0;
  border: none;
  transition: color 0.15s ease, background 0.15s ease;
}

.curso-nav-top__ico {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.curso-nav-top__list a:hover:not(.is-current) {
  color: var(--curso-rojo-osc);
  background: #e2e2e2;
}

.curso-nav-top__list a.is-current {
  color: #fff;
  background: var(--curso-rojo);
}

.curso-nav-top__list a.is-current .curso-nav-top__ico {
  color: #fff;
}

@media (max-width: 720px) {
  .curso-nav-top__list {
    flex-wrap: wrap;
  }

  .curso-nav-top__list > li {
    flex: 1 1 calc(50% - 1px);
    min-width: min(100%, 118px);
  }

  .curso-nav-top__list a {
    padding: 0.65rem 0.4rem;
    font-size: 0.75rem;
    gap: 0.35rem;
  }

  .curso-nav-top__ico {
    width: 1.1rem;
    height: 1.1rem;
  }
}

.curso-shell__body {
  flex: 1;
  min-width: 0;
}

@media (min-width: 901px) {
  .curso-nav-lateral {
    transition:
      width 0.45s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.38s ease,
      padding 0.42s cubic-bezier(0.4, 0, 0.2, 1),
      border-width 0.42s ease;
  }

  .curso-shell--nav-collapsed .curso-nav-lateral {
    width: 0;
    min-width: 0;
    opacity: 0;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden;
    border-right-width: 0;
    pointer-events: none;
  }
}

@media (max-width: 900px) {
  .curso-shell {
    flex-direction: column;
    align-items: stretch;
  }

  .curso-nav-lateral {
    width: 100%;
    max-height: 2400px;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--curso-borde);
    transition:
      max-height 0.48s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.35s ease,
      padding 0.4s ease,
      margin 0.35s ease,
      border-width 0.35s ease;
    overflow: visible;
  }

  .curso-shell--nav-collapsed .curso-nav-lateral {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin: 0;
    border-bottom-width: 0;
    pointer-events: none;
    overflow: hidden;
  }

  /* Menú de unidades siempre a la vista al hacer scroll (el lateral va plegado en móvil) */
  .curso-nav-top {
    z-index: 6;
  }

  .curso-nav-lateral__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    padding: 0 var(--pad-x) 0.85rem;
  }

  .curso-nav-lateral__list li {
    flex: 1 1 auto;
    min-width: min(100%, 148px);
  }

  .curso-nav-lateral__list a {
    border-radius: var(--curso-radio-sm);
    padding: 0.85rem 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .curso-nav-lateral,
  .curso-nav-top__menu-toggle-ico {
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
}

/* ——— Cabecera institucional ——— */
.curso-header {
  width: 100%;
  background: var(--curso-fondo-alt);
  box-shadow: var(--curso-sombra-suave);
  position: relative;
  z-index: 2;
}

.curso-header__franja {
  width: 100%;
  height: 10px;
}

.curso-header__franja--gris {
  background: #585c67;
}

.curso-header__franja--roja {
  background: var(--curso-rojo);
}

.curso-header__bar {
  width: 100%;
  /* Márgenes horizontales propios: mucho más estrechos que --pad-x del cuerpo, para acercar logos a las orillas */
  padding-top: 1rem;
  padding-bottom: 1rem;
  padding-left: max(clamp(0.45rem, 1.75vw, 1.25rem), env(safe-area-inset-left, 0px));
  padding-right: max(clamp(0.45rem, 1.75vw, 1.25rem), env(safe-area-inset-right, 0px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.curso-header__bar img {
  display: block;
  max-height: 52px;
  width: auto;
  object-fit: contain;
}

.curso-header__logo-link {
  display: inline-flex;
  align-items: center;
  line-height: 0;
  text-decoration: none;
  color: inherit;
}

.curso-header__logo-link:focus-visible {
  outline: 2px solid var(--curso-rojo);
  outline-offset: 3px;
  border-radius: 4px;
}

.curso-header__bar .curso-header__logo-orb {
  flex-shrink: 0;
  max-height: 72px;
  width: auto;
}

@media (max-width: 480px) {
  .curso-header__bar {
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
    padding-left: max(clamp(0.35rem, 2.5vw, 0.75rem), env(safe-area-inset-left, 0px));
    padding-right: max(clamp(0.35rem, 2.5vw, 0.75rem), env(safe-area-inset-right, 0px));
    gap: 0.5rem;
  }

  .curso-header__bar img {
    max-height: 40px;
  }

  .curso-header__bar .curso-header__logo-orb {
    max-height: 48px;
  }
}

/* ——— Hero / portada de pantalla ——— */
.curso-hero {
  width: 100%;
  position: relative;
  background: linear-gradient(145deg, #27272a 0%, #18181b 55%, #1c1917 100%);
  color: #fafafa;
  padding: var(--pad-y) var(--pad-x);
  overflow: hidden;
}

.curso-hero--foto {
  isolation: isolate;
}

.curso-hero__foto {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: url("hero-unidad-0.png") center 30% / cover no-repeat;
  opacity: 0.32;
  pointer-events: none;
}

.curso-hero--foto-unidad1 .curso-hero__foto {
  background-image: url("hero-unidad-1.png");
  background-position: center 42%;
  background-size: cover;
  background-repeat: no-repeat;
}

.curso-hero--foto-unidad2 .curso-hero__foto {
  background-image: url("hero-unidad-2.png");
  background-position: 48% 38%;
  background-size: cover;
  background-repeat: no-repeat;
}

.curso-hero--foto-unidad3 .curso-hero__foto {
  background-image: url("hero-unidad-3.png");
  background-position: center 45%;
  background-size: cover;
  background-repeat: no-repeat;
}

.curso-hero--foto-cierre .curso-hero__foto {
  background-image: url("hero-unidad-4.png");
  background-position: center 38%;
  background-size: cover;
  background-repeat: no-repeat;
}

.curso-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(ellipse 80% 60% at 100% 0%, rgba(194, 46, 46, 0.35), transparent 55%),
    linear-gradient(180deg, rgba(24, 24, 27, 0.55) 0%, rgba(24, 24, 27, 0.72) 100%);
  pointer-events: none;
}

.curso-hero:not(.curso-hero--foto)::before {
  background: radial-gradient(ellipse 80% 60% at 100% 0%, rgba(194, 46, 46, 0.35), transparent 55%);
}

.curso-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  z-index: 3;
  background: linear-gradient(90deg, var(--curso-gris) 0%, var(--curso-gris) 35%, var(--curso-rojo) 35%, var(--curso-rojo) 100%);
}

.curso-hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: none;
}

.curso-hero__pleca {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #c22e2e;
  margin: 0 0 0.75rem;
}

.curso-hero__pleca::before {
  content: "";
  width: 40px;
  height: 4px;
  background: var(--curso-rojo);
  border-radius: 2px;
}

.curso-hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.curso-hero h1.curso-hero__titulo-marca {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.08em;
  font-family: "Inter", "Helvetica Neue", Helvetica, Arial, ui-sans-serif, sans-serif;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.curso-hero__titulo-marca-linea {
  display: block;
}

.curso-hero__titulo-marca-linea--blanco {
  color: #fafafa;
}

.curso-hero__titulo-marca-linea--oro {
  color: #dcac55;
}

/* Unidades 1–4: etiqueta «Unidad N» + tema en el hero (misma escala tipográfica) */
.curso-hero h1.curso-hero__titulo-principal {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
}

.curso-hero__unidad-id {
  flex-shrink: 0;
  font-size: inherit;
  font-weight: 700;
  line-height: inherit;
  letter-spacing: inherit;
  color: #c22e2e;
}

.curso-hero__unidad-tema {
  flex: 1 1 min(100%, 16rem);
  min-width: 0;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  letter-spacing: inherit;
}

.curso-hero__sub {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  color: #d4d4d8;
  max-width: 52ch;
}

.curso-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
  align-items: stretch;
  list-style: none;
  margin: 0;
  padding: 0;
}

.curso-chip {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 700;
  text-align: center;
  color: #e4e4e7;
}

.curso-chip__txt {
  text-align: center;
  flex: 1 1 auto;
  min-width: 0;
}

.curso-hero__chips .curso-chip {
  flex: 1 1 200px;
  max-width: 100%;
}

.curso-hero__acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin: 1.35rem 0 0;
}

/* CTA debajo del hero (ficha técnica → login) */
.curso-cta-tomar {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.25rem var(--pad-x);
  background: var(--curso-fondo-alt);
  border-bottom: 1px solid var(--curso-borde);
}

.curso-cta-tomar .curso-actividad-panel__cta {
  margin: 0;
}

.curso-chip .curso-ico {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
  color: #c22e2e;
}

/* ——— Syllabus ——— */
.curso-syllabus-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem 1.5rem;
  margin: 0.25rem 0 0;
}

@media (min-width: 720px) {
  .curso-syllabus-meta {
    grid-template-columns: repeat(2, 1fr);
  }
}

.curso-syllabus-meta > div {
  margin: 0;
  padding: 0.85rem 1rem;
  background: var(--curso-fondo);
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio-sm);
  border-left: 4px solid var(--curso-rojo);
}

.curso-syllabus-meta dt {
  margin: 0 0 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--curso-rojo);
}

.curso-syllabus-meta dd {
  margin: 0;
  font-size: 0.98rem;
  color: var(--curso-texto);
  line-height: 1.45;
}


/* ——— Cuerpo editorial ——— */
.curso-main {
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
}

.curso-main img {
  max-width: 100%;
  height: auto;
}

.curso-main video {
  max-width: 100%;
}

.curso-bloque {
  width: 100%;
  padding: var(--pad-y) var(--pad-x);
}

.curso-bloque--blanco {
  background: var(--curso-fondo-alt);
}

.curso-bloque--gris {
  background: var(--curso-fondo);
  background-image: linear-gradient(180deg, var(--curso-fondo-alt) 0%, var(--curso-fondo) 8%, var(--curso-fondo) 100%);
}

/* Introducción Unidad 0: imagen a la izquierda, texto a la derecha, centrados en altura */
.curso-intro-con-img {
  display: grid;
  gap: 1.25rem 0.5rem;
  align-items: center;
  margin-top: 0.25rem;
}

.curso-intro-con-img__texto {
  min-width: 0;
}

.curso-intro-con-img__texto p {
  margin: 0;
}

.curso-intro-con-img__texto ul {
  margin: 0.85rem 0 0;
  padding-left: 1.25rem;
}

.curso-intro-con-img__texto li + li {
  margin-top: 0.35rem;
}

.curso-intro-con-img__fig {
  margin: 0;
  max-width: 20rem;
  width: fit-content;
  justify-self: center;
  background: transparent;
}

.curso-intro-con-img__fig img {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  background: transparent;
}

@media (min-width: 640px) {
  .curso-intro-con-img {
    /* Columna de imagen solo tan ancha como el PNG (evita hueco entre mano y texto) */
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: clamp(0.45rem, 1.4vw, 0.65rem);
    align-items: center;
  }

  .curso-intro-con-img__fig {
    justify-self: start;
    max-width: min(17.5rem, 38vw);
  }
}

.curso-bloque--acento {
  background: linear-gradient(180deg, #fdf2f2 0%, var(--curso-fondo-alt) 45%);
  border-top: 1px solid var(--curso-borde);
  border-bottom: 1px solid var(--curso-borde);
}

/* Reproductor de video — interfaz tipo estudio e-Learning (MP4 en /videos/) */
figure.curso-video {
  margin: 0;
}

.curso-video__intro {
  margin: 0 0 1.25rem;
  max-width: 48rem;
  color: var(--curso-texto-medio);
  font-size: 0.9375rem;
  line-height: 1.55;
}

.curso-video__intro--ancho-completo {
  max-width: none;
  width: 100%;
}

.curso-video-player {
  max-width: 1040px;
  margin: 0 auto;
  border-radius: var(--curso-radio);
  overflow: hidden;
  background: var(--curso-fondo-alt);
  border: 1px solid var(--curso-borde);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.6) inset,
    0 12px 40px rgba(0, 0, 0, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.06);
}

.curso-video-player__top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem 1.25rem;
  padding: 1.15rem 1.35rem 1.1rem 1.5rem;
  background: linear-gradient(145deg, #1c1917 0%, #27272a 42%, #18181b 100%);
  color: #fafafa;
  border-bottom: 3px solid var(--curso-rojo);
  position: relative;
}

.curso-video-player__top::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--curso-rojo);
  border-radius: 0 2px 2px 0;
}

.curso-video-player__eyebrow {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #a1a1aa;
  margin-bottom: 0.35rem;
}

.curso-video-player__headline {
  display: block;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  max-width: 36rem;
}

.curso-video-player__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  flex-shrink: 0;
}

.curso-video-player__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.65rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #e4e4e7;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
}

.curso-video-player__badge--accent {
  color: #fff;
  background: rgba(194, 46, 46, 0.35);
  border-color: rgba(255, 255, 255, 0.2);
}

.curso-video-player__viewport {
  position: relative;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(194, 46, 46, 0.12), transparent 55%),
    linear-gradient(180deg, #0a0a0b 0%, #141416 100%);
  padding: 0.65rem 0.65rem 0.85rem;
}

@media (min-width: 640px) {
  .curso-video-player__viewport {
    padding: 1rem 1rem 1.15rem;
  }
}

.curso-video-player__frame {
  position: relative;
  border-radius: var(--curso-radio-sm);
  overflow: hidden;
  background: #000;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 8px 32px rgba(0, 0, 0, 0.45);
}

.curso-video-player__frame::after {
  content: "";
  pointer-events: none;
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.curso-video-player__video {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(72vh, 580px);
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #000;
}

.curso-video-player__frame--youtube {
  aspect-ratio: 16 / 9;
  background: #000;
}

.curso-video-player__youtube {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.curso-video-player__ref {
  margin: 0;
  padding: 0.85rem 1.25rem 1rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--curso-texto-medio);
  background: var(--curso-fondo);
  border-top: 1px solid var(--curso-borde);
}

.curso-video-player__ref-label {
  display: block;
  margin: 0 0 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--curso-rojo);
}

.curso-video-player__ref cite {
  font-style: normal;
  color: var(--curso-texto);
}

.curso-video-player__ref-yt {
  display: block;
  margin-top: 0.35rem;
}

.curso-video-player__ref a {
  color: var(--curso-rojo);
  font-weight: 600;
  word-break: break-all;
}

.curso-video-player__rewind {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  padding: 0.65rem 1.25rem 0.75rem;
  background: var(--curso-fondo);
  border-top: 1px solid var(--curso-borde);
}

.curso-video-player__rewind-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--curso-texto-medio);
  flex-shrink: 0;
}

.curso-video-player__rewind-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.curso-video-player__rewind-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2.25rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 700;
  font-family: inherit;
  color: var(--curso-texto);
  background: #fff;
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio-sm);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.curso-video-player__rewind-btn::before {
  content: "↺";
  font-size: 0.9375rem;
  line-height: 1;
  margin-right: 0.15rem;
  color: var(--curso-rojo);
  flex-shrink: 0;
}

.curso-video-player__rewind-btn:hover {
  background: var(--curso-rojo-suave);
  border-color: rgba(194, 46, 46, 0.35);
  color: var(--curso-rojo);
}

.curso-video-player__rewind-btn:focus-visible {
  outline: 2px solid var(--curso-rojo);
  outline-offset: 2px;
}

.curso-video-player__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  padding: 0.85rem 1.25rem 0.65rem;
  background: var(--curso-fondo);
  border-top: 1px solid var(--curso-borde);
}

.curso-video-player__download {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--curso-rojo);
  text-decoration: none;
  background: #fff;
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio-sm);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.curso-video-player__download:hover {
  background: var(--curso-rojo-suave);
  border-color: rgba(194, 46, 46, 0.35);
}

.curso-video-player__hint {
  flex: 1 1 12rem;
  font-size: 0.78rem;
  color: var(--curso-texto-medio);
  line-height: 1.45;
}

.curso-video-player__cap {
  margin: 0;
  padding: 0.65rem 1.25rem 1rem;
  font-size: 0.8125rem;
  color: var(--curso-texto-medio);
  line-height: 1.5;
  border-top: 1px solid var(--curso-borde);
  background: var(--curso-fondo-alt);
}

.curso-video-player__cap strong {
  color: var(--curso-texto);
  font-weight: 600;
}

.curso-bloque--cierre {
  background: linear-gradient(180deg, var(--curso-gris-osc) 0%, #27272a 100%);
  color: #f4f4f5;
}

.curso-bloque--cierre a {
  color: #c22e2e;
}

.curso-bloque--cierre h2 {
  color: #fff;
}

/* Encabezado de sección: pleca vertical + icono */
.curso-seccion-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin: 0 0 1.35rem;
}

.curso-pleca-v {
  width: 8px;
  min-height: 3rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--curso-rojo) 0%, var(--curso-rojo-osc) 100%);
  box-shadow: 0 2px 8px rgba(194, 46, 46, 0.35);
}

.curso-seccion-head__text {
  flex: 1;
  min-width: 0;
}

.curso-seccion-head h2 {
  margin: 0 0 0.25rem;
  font-size: clamp(1.2rem, 2.5vw, 1.45rem);
  font-weight: 700;
  color: var(--curso-texto);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.curso-bloque--cierre .curso-seccion-head h2 {
  color: #fff;
}

.curso-seccion-head .curso-etiqueta {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--curso-gris);
  margin-bottom: 0.35rem;
}

.curso-bloque--cierre .curso-seccion-head .curso-etiqueta {
  color: #a1a1aa;
}

.curso-ico {
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
  color: var(--curso-rojo);
}

.curso-bloque--cierre .curso-ico {
  color: #c22e2e;
}

.curso-bloque--cierre .curso-pleca-v {
  background: linear-gradient(180deg, #c22e2e 0%, #c22e2e 100%);
  box-shadow: 0 2px 12px rgba(194, 46, 46, 0.35);
}

.curso-bloque p {
  margin: 0 0 1rem;
}

.curso-bloque p:last-child {
  margin-bottom: 0;
}

.curso-bloque ul,
.curso-bloque ol {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
}

.curso-bloque li {
  margin-bottom: 0.45rem;
}

.curso-bloque li ul {
  margin-top: 0.4rem;
  margin-bottom: 0;
}

.curso-bloque a {
  color: var(--curso-rojo);
  font-weight: 600;
}

/* Mayor especificidad que .curso-bloque a (texto blanco sobre botón rojo) */
.curso-bloque a.curso-actividad-panel__cta {
  color: #fff;
}

/* ——— Temario: tarjetas numeradas ——— */
.curso-temario-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

@media (min-width: 640px) {
  .curso-temario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .curso-temario-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.curso-tarjeta-modulo {
  position: relative;
  background: var(--curso-fondo-alt);
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio);
  padding: 1.35rem 1.25rem 1.35rem 1.35rem;
  box-shadow: var(--curso-sombra-suave);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.curso-tarjeta-modulo:hover {
  transform: translateY(-2px);
  box-shadow: var(--curso-sombra);
}

.curso-tarjeta-modulo::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  border-radius: var(--curso-radio) var(--curso-radio) 0 0;
  background: linear-gradient(90deg, var(--curso-gris) 0%, var(--curso-rojo) 100%);
}

.curso-tarjeta-modulo__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 10px;
  background: var(--curso-rojo-suave);
  color: var(--curso-rojo);
  font-weight: 800;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
}

.curso-tarjeta-modulo h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--curso-texto);
}

.curso-tarjeta-modulo p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--curso-texto-medio);
  line-height: 1.55;
}

.curso-tarjeta-modulo p strong {
  color: var(--curso-texto);
}

/* ——— Syllabus: tarjetas de estructura ——— */
.curso-syllabus-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.35rem;
  margin-top: 0.35rem;
}

@media (min-width: 860px) {
  .curso-syllabus-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .curso-syllabus-card--cierre {
    grid-column: 1 / -1;
  }
}

.curso-syllabus-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background: var(--curso-fondo-alt);
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio);
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(24, 24, 27, 0.04), var(--curso-sombra-suave);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.curso-syllabus-card:hover {
  transform: translateY(-3px);
  border-color: #d4d4d8;
  box-shadow: 0 12px 36px rgba(24, 24, 27, 0.1);
}

.curso-syllabus-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  padding: 1.15rem 1.35rem 1.1rem;
  background:
    linear-gradient(180deg, #fafafa 0%, #ffffff 100%);
  border-bottom: 1px solid var(--curso-borde);
  border-top: 3px solid var(--curso-rojo);
}

.curso-syllabus-card__head-main {
  flex: 1 1 12rem;
  min-width: 0;
}

.curso-syllabus-card__eyebrow {
  display: block;
  margin: 0 0 0.35rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--curso-rojo);
}

.curso-syllabus-card__title {
  margin: 0;
  font-family: "Inter", "Helvetica Neue", Helvetica, Arial, ui-sans-serif, sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.25;
  color: var(--curso-texto);
}

.curso-syllabus-card__chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.65rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--curso-gris-osc);
  background: #f4f4f5;
  border: 1px solid #e4e4e7;
  border-radius: 6px;
}

.curso-syllabus-card__chip--accent {
  color: #fff;
  background: var(--curso-rojo);
  border-color: var(--curso-rojo);
}

.curso-syllabus-card__body {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0;
  flex: 1;
}

.curso-syllabus-card__row {
  margin: 0;
  padding: 1rem 1.35rem;
  border-bottom: 1px solid #f0f0f2;
}

.curso-syllabus-card__row:last-child {
  border-bottom: none;
}

.curso-syllabus-card__row dt {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--curso-gris-osc);
}

.curso-syllabus-card__ico {
  width: 0.95rem;
  height: 0.95rem;
  flex-shrink: 0;
  color: var(--curso-rojo);
}

.curso-syllabus-card__row dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--curso-texto-medio);
}
.curso-syllabus-card__temas {
  margin: 0.15rem 0 0;
  padding-left: 1.15rem;
  list-style: disc;
}

.curso-syllabus-card__temas li {
  margin: 0;
  padding: 0;
}

.curso-syllabus-card__temas li + li {
  margin-top: 0.35rem;
}

.curso-syllabus-card__row--evidencia {
  background: linear-gradient(180deg, #fffbfb 0%, #fff7f7 100%);
}

.curso-syllabus-card__row--evidencia dt {
  color: var(--curso-rojo);
}

.curso-syllabus-card__row--evidencia dd {
  color: var(--curso-texto);
  font-weight: 600;
}

.curso-syllabus-card--cierre .curso-syllabus-card__head {
  background: linear-gradient(135deg, #1c1917 0%, #27272a 55%, #18181b 100%);
  border-bottom-color: rgba(255, 255, 255, 0.08);
  border-top-color: var(--curso-rojo);
}

.curso-syllabus-card--cierre .curso-syllabus-card__eyebrow {
  color: #fda4a4;
}

.curso-syllabus-card--cierre .curso-syllabus-card__title {
  color: #fafafa;
}

@media (min-width: 860px) {
  .curso-syllabus-card__body--cierre {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .curso-syllabus-card__body--cierre .curso-syllabus-card__row {
    border-bottom: none;
    border-right: 1px solid #f0f0f2;
    padding: 1.25rem 1.5rem;
  }

  .curso-syllabus-card__body--cierre .curso-syllabus-card__row:last-child {
    border-right: none;
  }
}

/* ——— Glosario: columna de búsqueda + rejilla de acordeones (ancho completo) ——— */
.curso-glosario__body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.curso-glosario__visual {
  margin: 0.25rem auto 0;
  justify-self: center;
  align-self: center;
  max-width: 14rem;
  width: 100%;
  background: transparent;
}

.curso-glosario__visual img {
  display: block;
  width: 100%;
  height: auto;
  background: transparent;
}

@media (min-width: 880px) {
  .curso-glosario__body {
    display: grid;
    grid-template-columns: minmax(180px, 22%) minmax(0, 1fr) minmax(9.5rem, 13.5rem);
    gap: 1rem 1.25rem;
    align-items: start;
  }

  .curso-glosario__aside {
    position: sticky;
    top: 0.75rem;
  }

  .curso-glosario__visual {
    order: 0;
    position: sticky;
    top: 0.75rem;
    justify-self: end;
    align-self: start;
    max-width: none;
  }
}

.curso-glosario__lead {
  margin: 0 0 0.85rem;
  max-width: none;
  color: var(--curso-texto-medio);
  font-size: 0.875rem;
  line-height: 1.5;
}

.curso-glosario__toolbar {
  margin-bottom: 0;
  max-width: none;
  width: 100%;
}

.curso-glosario__label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--curso-gris);
}

.curso-glosario__input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font: inherit;
  font-size: 0.9375rem;
  color: var(--curso-texto);
  background: var(--curso-fondo-alt);
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio-sm);
  box-shadow: var(--curso-sombra-suave);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.curso-glosario__input::placeholder {
  color: #a1a1aa;
}

.curso-glosario__input:hover {
  border-color: #d4d4d8;
}

.curso-glosario__input:focus {
  outline: none;
  border-color: var(--curso-rojo);
  box-shadow: 0 0 0 3px var(--curso-rojo-suave);
}

.curso-glosario__sin-resultados {
  margin: 0.5rem 0 0;
  font-size: 0.8125rem;
  color: var(--curso-gris);
}

.curso-glosario__lista {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr));
  gap: 0.45rem 0.55rem;
  width: 100%;
  max-width: none;
  align-content: start;
}

@media (min-width: 880px) {
  .curso-glosario__lista {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr));
  }
}

@media (min-width: 1200px) {
  .curso-glosario__lista {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 210px), 1fr));
  }
}

.curso-glosario__item {
  margin: 0;
  min-width: 0;
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio-sm);
  background: var(--curso-fondo-alt);
  box-shadow: var(--curso-sombra-suave);
  overflow: hidden;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.curso-glosario__item:hover {
  border-color: #d4d4d8;
  box-shadow: var(--curso-sombra);
}

.curso-glosario__item[open] {
  border-color: #e4e4e7;
  box-shadow: var(--curso-sombra);
  grid-column: 1 / -1;
}

.curso-glosario__item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.6rem 0.75rem 0.6rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--curso-texto);
  border-left: 3px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease;
}

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

.curso-glosario__item summary::after {
  content: "";
  flex-shrink: 0;
  width: 0.5rem;
  height: 0.5rem;
  margin-top: 0.28rem;
  border-right: 2px solid var(--curso-gris);
  border-bottom: 2px solid var(--curso-gris);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.curso-glosario__item[open] summary {
  background: linear-gradient(90deg, var(--curso-rojo-suave) 0%, transparent 55%);
  border-left-color: var(--curso-rojo);
}

.curso-glosario__item[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 0.42rem;
}

.curso-glosario__def {
  margin: 0;
  padding: 0 0.75rem 0.75rem 1rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--curso-texto-medio);
  border-top: 1px solid var(--curso-borde);
  padding-top: 0.55rem;
}

/* ——— Actividad de aprendizaje ——— */
.curso-actividad {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0;
  background: var(--curso-fondo-alt);
  border-radius: var(--curso-radio);
  border: 1px solid var(--curso-borde);
  box-shadow: var(--curso-sombra);
  overflow: hidden;
}

.curso-actividad__pleca {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 1.35rem;
  text-align: center;
  background: linear-gradient(90deg, var(--curso-gris-osc) 0%, #3f3f46 50%, var(--curso-rojo-osc) 100%);
  color: #fff;
}

.curso-actividad__pleca .curso-ico {
  color: #fff;
  flex-shrink: 0;
}

.curso-actividad__pleca h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
}

.curso-actividad__cuerpo {
  padding: 1.35rem 1.35rem 1.5rem;
  border-left: 6px solid var(--curso-rojo);
}

.curso-actividad__cuerpo .curso-pregunta {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  background: var(--curso-fondo);
  border-radius: var(--curso-radio-sm);
  border: 1px dashed var(--curso-borde);
}

.curso-actividad__cuerpo .curso-pregunta strong {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--curso-gris);
  margin-bottom: 0.35rem;
}

.opciones {
  margin: 1rem 0 0;
  padding-left: 1.5rem;
}

.opciones li {
  margin-bottom: 0.5rem;
  padding-left: 0.25rem;
}

.correcta {
  font-weight: 700;
  color: #047857;
}

.curso-retro {
  margin-top: 1.25rem;
  padding: 1rem 1.15rem;
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  border-radius: var(--curso-radio-sm);
  border: 1px solid #a7f3d0;
}

.curso-retro strong {
  color: #065f46;
}

.curso-actividad__cuerpo .curso-pregunta a.curso-actividad__link-pregunta {
  color: var(--curso-rojo);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.curso-actividad__cuerpo .curso-pregunta a.curso-actividad__link-pregunta:hover {
  filter: brightness(0.9);
}

.curso-actividad__nota-campus {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  color: var(--curso-texto-medio);
  line-height: 1.45;
}

/* Actividad tipo panel (alineado al reproductor de video / e-Learning) */
.curso-actividad--panel {
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
}

.curso-actividad-panel {
  max-width: 1040px;
  margin: 0 auto;
  border-radius: var(--curso-radio);
  overflow: hidden;
  background: var(--curso-fondo-alt);
  border: 1px solid var(--curso-borde);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.6) inset,
    0 12px 40px rgba(0, 0, 0, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.06);
}

.curso-actividad-panel__top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem 1.25rem;
  padding: 1.15rem 1.35rem 1.1rem 1.5rem;
  background: linear-gradient(145deg, #1c1917 0%, #27272a 42%, #18181b 100%);
  color: #fafafa;
  border-bottom: 3px solid var(--curso-rojo);
  position: relative;
}

.curso-actividad-panel__top::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--curso-rojo);
  border-radius: 0 2px 2px 0;
}

.curso-actividad-panel__eyebrow {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #a1a1aa;
  margin-bottom: 0.35rem;
}

.curso-actividad-panel__headline {
  display: block;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  max-width: 40rem;
}

.curso-actividad-panel__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  flex-shrink: 0;
}

.curso-actividad-panel__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.65rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #e4e4e7;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
}

.curso-actividad-panel__badge--accent {
  color: #fff;
  background: rgba(194, 46, 46, 0.35);
  border-color: rgba(255, 255, 255, 0.2);
}

.curso-actividad-panel__viewport {
  position: relative;
  background: radial-gradient(ellipse 80% 55% at 50% 0%, rgba(194, 46, 46, 0.1), transparent 52%),
    linear-gradient(180deg, #f4f4f5 0%, var(--curso-fondo-alt) 38%, var(--curso-fondo-alt) 100%);
  padding: 1rem 0.85rem 1.15rem;
}

@media (min-width: 640px) {
  .curso-actividad-panel__viewport {
    padding: 1.25rem 1.25rem 1.35rem;
  }
}

.curso-actividad-panel__scenario {
  margin: 0 0 1rem;
  padding: 1rem 1.15rem 1.1rem;
  background: #fff;
  border-radius: var(--curso-radio-sm);
  border: 1px solid var(--curso-borde);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.8) inset,
    0 6px 20px rgba(0, 0, 0, 0.06);
}

.curso-actividad-panel__scenario-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--curso-rojo);
  margin-bottom: 0.5rem;
}

.curso-actividad-panel__scenario-text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--curso-texto);
}

.curso-actividad-panel__scenario-text strong {
  color: var(--curso-texto);
  font-weight: 700;
}

.curso-actividad-panel__pregunta {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.1rem 1.15rem 1.15rem;
  background: #fff;
  border-radius: var(--curso-radio-sm);
  border: 1px solid var(--curso-borde);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.85) inset,
    0 8px 28px rgba(0, 0, 0, 0.07);
  position: relative;
}

.curso-actividad-panel__pregunta::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  bottom: 0.65rem;
  width: 4px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--curso-rojo) 0%, var(--curso-rojo-osc) 100%);
  box-shadow: 0 2px 8px rgba(194, 46, 46, 0.25);
}

.curso-actividad-panel__pregunta-icon {
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--curso-radio-sm);
  background: linear-gradient(145deg, var(--curso-rojo-suave) 0%, #fff 100%);
  border: 1px solid rgba(194, 46, 46, 0.2);
  color: var(--curso-rojo);
}

.curso-actividad-panel__pregunta-icon .curso-ico {
  width: 1.35rem;
  height: 1.35rem;
}

.curso-actividad-panel__pregunta-body {
  flex: 1;
  min-width: 0;
}

.curso-actividad-panel__pregunta-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--curso-gris);
  margin-bottom: 0.45rem;
}

.curso-actividad-panel__pregunta-lead {
  margin: 0 0 1rem;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--curso-texto);
  letter-spacing: -0.01em;
}

.curso-actividad-panel__pregunta-cta-wrap {
  margin: 0;
}

a.curso-actividad-panel__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.875rem;
  font-weight: 700;
  font-family: inherit;
  color: #fff;
  text-decoration: none;
  background: var(--curso-rojo);
  border: 2px solid var(--curso-rojo);
  border-radius: var(--curso-radio-sm);
  box-shadow: 0 4px 14px rgba(194, 46, 46, 0.35);
  transition: filter 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

a.curso-actividad-panel__cta span {
  color: inherit;
}

a.curso-actividad-panel__cta:hover {
  color: #fff;
  filter: brightness(1.06);
  box-shadow: 0 6px 20px rgba(194, 46, 46, 0.4);
}

a.curso-actividad-panel__cta:focus-visible {
  color: #fff;
  outline: 2px solid var(--curso-rojo);
  outline-offset: 3px;
}

a.curso-actividad-panel__cta--tomar {
  background: #1f2937;
  border-color: #1f2937;
  box-shadow: 0 4px 14px rgba(31, 41, 55, 0.35);
}

a.curso-actividad-panel__cta--tomar:hover {
  filter: brightness(1.12);
  box-shadow: 0 6px 20px rgba(31, 41, 55, 0.45);
}

a.curso-actividad-panel__cta--tomar:focus-visible {
  outline-color: #1f2937;
}

.curso-actividad-panel__cta-ico {
  flex-shrink: 0;
  opacity: 0.95;
  color: #fff;
}

.curso-actividad-panel__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.65rem 0.85rem;
  margin: 0;
  padding: 0.85rem 1.25rem 1rem;
  background: var(--curso-fondo);
  border-top: 1px solid var(--curso-borde);
}

.curso-actividad-panel__footer-icon {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--curso-fondo-alt);
  border: 1px solid var(--curso-borde);
  color: var(--curso-rojo);
}

.curso-actividad-panel__footer-icon .curso-ico {
  width: 1.125rem;
  height: 1.125rem;
}

.curso-actividad-panel__footer-text {
  flex: 1 1 220px;
  margin: 0;
  padding-top: 0.15rem;
  font-size: 0.8125rem;
  color: var(--curso-texto-medio);
  line-height: 1.5;
}

@media (max-width: 520px) {
  a.curso-actividad-panel__cta {
    width: 100%;
    box-sizing: border-box;
  }
}

.curso-conclusion-caja {
  margin-top: 1.5rem;
  padding: 1.25rem 1.35rem;
  background: var(--curso-fondo);
  border-radius: var(--curso-radio-sm);
  border-left: 5px solid var(--curso-gris);
  font-size: 0.98rem;
}

.curso-conclusion-caja strong {
  color: var(--curso-texto);
}

.curso-conclusion-caja__texto {
  margin: 0 0 1rem;
  line-height: 1.55;
}

.curso-conclusion-caja__texto:last-child {
  margin-bottom: 0;
}

/* Audio + imagen a la derecha (conclusiones unidades 1–3) */
.curso-conclusion-audio-row {
  display: grid;
  gap: 1rem;
  align-items: center;
  margin-top: 0.25rem;
}

.curso-conclusion-audio-row .curso-audio-player {
  margin-top: 0;
  width: 100%;
}

.curso-conclusion-audio-row__fig {
  margin: 0;
  max-width: 11rem;
  width: fit-content;
  justify-self: center;
}

.curso-conclusion-audio-row__fig img {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
}

@media (min-width: 640px) {
  .curso-conclusion-audio-row {
    grid-template-columns: minmax(0, 1fr) auto;
    column-gap: clamp(0.75rem, 2vw, 1.25rem);
    align-items: center;
  }

  .curso-conclusion-audio-row__fig {
    justify-self: end;
    max-width: 12.5rem;
  }
}

/* Reproductor de audio en conclusión (alineado al estilo del vídeo) */
.curso-audio-player {
  margin-top: 0.25rem;
  width: 100%;
  max-width: none;
  min-width: 0;
  box-sizing: border-box;
  border-radius: var(--curso-radio-sm);
  overflow: hidden;
  border: 1px solid var(--curso-borde);
  background: var(--curso-fondo-alt);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.6) inset,
    0 8px 28px rgba(0, 0, 0, 0.08);
}

.curso-audio-player__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem 1rem;
  padding: 0.95rem 1.15rem 0.9rem 1.25rem;
  background: linear-gradient(145deg, #1c1917 0%, #27272a 42%, #18181b 100%);
  color: #fafafa;
  border-bottom: 3px solid var(--curso-rojo);
  position: relative;
}

.curso-audio-player__top::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--curso-rojo);
  border-radius: 0 2px 2px 0;
}

.curso-audio-player__eyebrow {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #a1a1aa;
  margin-bottom: 0.3rem;
}

.curso-audio-player__titulo {
  display: block;
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.curso-audio-player__ico {
  width: 1.85rem;
  height: 1.85rem;
  flex-shrink: 0;
  color: #fda4a4;
}

.curso-audio-player__body {
  padding: 1rem 1.15rem 1.05rem;
  background: var(--curso-fondo-alt);
}

.curso-audio-player__media {
  display: block;
  width: 100%;
  min-height: 42px;
  margin: 0 0 0.85rem;
}

.curso-audio-player__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
}

.curso-audio-player__download {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--curso-rojo);
  text-decoration: none;
  background: #fff;
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio-sm);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.curso-audio-player__download:hover {
  background: var(--curso-rojo-suave);
  border-color: rgba(194, 46, 46, 0.35);
}

.curso-audio-player__hint {
  flex: 1 1 10rem;
  margin: 0;
  font-size: 0.78rem;
  color: var(--curso-texto-medio);
  line-height: 1.45;
}

.curso-bloque--cierre .curso-audio-player--cierre-curso {
  margin-top: 1.35rem;
}

@media (max-width: 480px) {
  .curso-audio-player__top {
    padding: 0.85rem 1rem;
  }

  .curso-audio-player__body {
    padding: 0.85rem 1rem 0.95rem;
  }

  .curso-audio-player__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .curso-audio-player__download {
    justify-content: center;
  }
}

/* ——— Evaluación formativa en campus (post-conclusión de unidad) ——— */
.curso-evaluacion-consolidando {
  border-top: 1px solid var(--curso-borde);
}

.curso-evaluacion-consolidando__cuerpo {
  width: 100%;
  max-width: none;
  min-width: 0;
  box-sizing: border-box;
}

.curso-evaluacion-consolidando__lead {
  margin: 0 0 0.85rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--curso-texto);
  line-height: 1.45;
}

.curso-evaluacion-consolidando__cuerpo > p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--curso-texto);
}

.curso-evaluacion-consolidando__objetivo {
  margin: 1.15rem 0 1rem;
  padding: 0.9rem 1rem;
  background: var(--curso-fondo-alt);
  border-radius: var(--curso-radio-sm);
  border-left: 4px solid var(--curso-rojo);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--curso-texto);
}

.curso-evaluacion-consolidando__objetivo strong {
  color: var(--curso-rojo-osc);
}

.curso-evaluacion-consolidando__cta-wrap {
  margin: 0 0 1.25rem;
}

.curso-evaluacion-consolidando__campus {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem 1.1rem;
  background: linear-gradient(135deg, #fef2f2 0%, #fff 55%);
  border: 1px solid rgba(194, 46, 46, 0.2);
  border-radius: var(--curso-radio-sm);
  box-shadow: var(--curso-sombra-suave);
}

.curso-evaluacion-consolidando__campus .curso-ico {
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.35rem;
  margin-top: 0.12rem;
  color: var(--curso-rojo);
}

.curso-evaluacion-consolidando__campus p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--curso-texto);
}

.curso-evaluacion-consolidando__campus strong {
  color: var(--curso-texto);
}

/* ——— Certificado / constancia (página de cierre — campus, fondo oscuro) ——— */
.curso-certificado-campus {
  border-top: 1px solid #27272a;
  background: linear-gradient(180deg, #141416 0%, #0a0a0b 45%, #050506 100%);
  color: #e4e4e7;
}

.curso-certificado-campus .curso-seccion-head h2 {
  color: #fff;
}

.curso-certificado-campus .curso-seccion-head .curso-etiqueta {
  color: #a1a1aa;
}

.curso-certificado-campus .curso-seccion-head .curso-ico {
  color: #f87171;
}

.curso-certificado-campus .curso-pleca-v {
  background: linear-gradient(180deg, #c22e2e 0%, #9a2424 100%);
  box-shadow: 0 2px 12px rgba(194, 46, 46, 0.45);
}

.curso-certificado-campus__cuerpo {
  width: 100%;
  max-width: none;
  min-width: 0;
  box-sizing: border-box;
}

.curso-certificado-campus__lead {
  margin: 0 0 1rem;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.45;
  color: #fafafa;
}

.curso-certificado-campus__cuerpo > p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #d4d4d8;
}

.curso-certificado-campus__cuerpo > p strong {
  color: #fafafa;
}

.curso-certificado-campus__cta-wrap {
  margin: 1.15rem 0 1.25rem;
}

.curso-certificado-campus .curso-evaluacion-consolidando__campus {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.curso-certificado-campus .curso-evaluacion-consolidando__campus .curso-ico {
  color: #f87171;
}

.curso-certificado-campus .curso-evaluacion-consolidando__campus p,
.curso-certificado-campus .curso-evaluacion-consolidando__campus strong {
  color: #e4e4e7;
}

/* ——— Franja inferior tipo curso en línea ——— */
.curso-franja-info {
  width: 100%;
  padding: 0.65rem var(--pad-x);
  background: #585c67;
  border-top: 1px solid rgba(0, 0, 0, 0.12);
  font-size: 0.8125rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.curso-franja-info .curso-ico {
  width: 1.125rem;
  height: 1.125rem;
  color: rgba(255, 255, 255, 0.92);
}

/* ——— Quiz interactivo (jQuery) ——— */
.curso-quiz {
  max-width: 52rem;
}

.curso-quiz__intro {
  margin: 0 0 1.5rem;
  font-size: 0.9375rem;
  color: var(--curso-texto-medio);
  line-height: 1.55;
}

.curso-quiz__pregunta {
  margin-bottom: 1.5rem;
  padding: 1.15rem 1.25rem 1.25rem;
  background: var(--curso-fondo-alt);
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio-sm);
  box-shadow: var(--curso-sombra-suave);
}

.curso-quiz__pregunta.is-unanswered {
  border-color: #f59e0b;
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.25);
}

.curso-quiz__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.65rem;
  height: 1.65rem;
  margin-right: 0.5rem;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
  background: var(--curso-rojo);
  border-radius: 6px;
  vertical-align: middle;
}

.curso-quiz__enunciado {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--curso-texto);
  line-height: 1.45;
}

.curso-quiz__opciones {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.curso-quiz__opt {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin: 0;
  padding: 0.65rem 0.85rem;
  border: 2px solid var(--curso-borde);
  border-radius: var(--curso-radio-sm);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.curso-quiz__opt:hover {
  border-color: rgba(194, 46, 46, 0.35);
  background: var(--curso-rojo-suave);
}

.curso-quiz__opt input {
  margin: 0.2rem 0 0;
  flex-shrink: 0;
  accent-color: var(--curso-rojo);
}

.curso-quiz__opt span {
  flex: 1;
  font-size: 0.9375rem;
  line-height: 1.45;
  color: var(--curso-texto);
}

.curso-quiz__opt.is-correct {
  border-color: #059669;
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
}

.curso-quiz__opt.is-wrong {
  border-color: #dc2626;
  background: #fef2f2;
}

.curso-quiz__retro {
  margin-top: 0.85rem;
  padding: 0.75rem 0.9rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--curso-texto);
  background: var(--curso-fondo);
  border-radius: var(--curso-radio-sm);
  border-left: 4px solid var(--curso-gris);
}

.curso-quiz__pregunta.is-done .curso-quiz__retro {
  border-left-color: var(--curso-rojo);
}

.curso-quiz__pie {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--curso-borde);
}

.curso-quiz__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.15rem;
  font-size: 0.875rem;
  font-weight: 700;
  font-family: inherit;
  border-radius: var(--curso-radio-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.curso-quiz__btn--primary {
  color: #fff;
  background: var(--curso-rojo);
  border-color: var(--curso-rojo);
}

.curso-quiz__btn--primary:hover {
  filter: brightness(1.06);
}

.curso-quiz__btn--ghost {
  color: var(--curso-texto-medio);
  background: var(--curso-fondo-alt);
  border-color: var(--curso-borde);
}

.curso-quiz__btn--ghost:hover {
  border-color: var(--curso-gris);
  color: var(--curso-texto);
}

.curso-quiz__resultado {
  flex: 1 1 220px;
  margin: 0;
  padding: 0.65rem 0.9rem;
  font-size: 0.875rem;
  line-height: 1.45;
  border-radius: var(--curso-radio-sm);
}

.curso-quiz__resultado--ok {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.curso-quiz__resultado--mixed {
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
}

.curso-quiz__resultado--warn {
  background: #fff7ed;
  border: 1px solid #fdba74;
  color: #9a3412;
}

@media (max-width: 640px) {
  .curso-quiz__pie {
    flex-direction: column;
    align-items: stretch;
  }

  .curso-quiz__btn {
    width: 100%;
  }
}

/* ——— Botón scroll up ——— */
.curso-scroll-up {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: var(--curso-rojo);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(194, 46, 46, 0.4);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.15s ease;
}

.curso-scroll-up.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.curso-scroll-up:hover {
  transform: translateY(-2px);
}

.curso-scroll-up svg {
  width: 1.25rem;
  height: 1.25rem;
}

@media (max-width: 900px) {
  .curso-scroll-up {
    bottom: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
  }
}

/* ——— Unidad 0 · Aprendizaje (microlearning) ——— */
.curso-aprendizaje-bloque .curso-seccion-head {
  margin-bottom: 1.5rem;
}

.curso-aprendizaje {
  max-width: 72rem;
  margin: 0 auto;
}

.curso-aprendizaje__intro {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin: 0 0 1.75rem;
  padding: 1.15rem 1.35rem 1.2rem;
  background: linear-gradient(135deg, #1c1917 0%, #27272a 55%, #18181b 100%);
  color: #fafafa;
  border-radius: var(--curso-radio);
  border-left: 4px solid var(--curso-rojo);
  box-shadow: var(--curso-sombra);
}

.curso-aprendizaje__intro-ico {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(194, 46, 46, 0.2);
  color: #fda4a4;
}

.curso-aprendizaje__intro-texto {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.6;
  max-width: 52rem;
  color: #e4e4e7;
  flex: 1;
  min-width: 0;
}

.curso-aprendizaje__intro-texto strong {
  color: #fff;
  font-weight: 700;
}

.curso-aprendizaje__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 17.5rem), 1fr));
  gap: 1.15rem;
}

.curso-aprendizaje__card {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 1.25rem 1.2rem 1.35rem;
  background: var(--curso-fondo-alt);
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio);
  box-shadow: var(--curso-sombra-suave);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.curso-aprendizaje__card:hover {
  transform: translateY(-3px);
  box-shadow: var(--curso-sombra);
  border-color: rgba(194, 46, 46, 0.22);
}

.curso-aprendizaje__ico-wrap {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  border-radius: 12px;
  background: var(--curso-rojo-suave);
  color: var(--curso-rojo);
}

.curso-aprendizaje__ico {
  width: 1.65rem;
  height: 1.65rem;
  flex-shrink: 0;
  display: block;
  overflow: visible;
  color: inherit;
  fill: none;
}

.curso-aprendizaje__ico--intro {
  width: 1.5rem;
  height: 1.5rem;
  color: #fecaca;
}

.curso-aprendizaje__titulo {
  margin: 0 0 0.5rem;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--curso-texto);
}

.curso-aprendizaje__txt {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--curso-texto-medio);
}

.curso-aprendizaje__txt strong {
  color: var(--curso-texto);
  font-weight: 600;
}

@media (max-width: 640px) {
  .curso-aprendizaje__intro {
    padding: 1rem 1.1rem;
  }

  .curso-aprendizaje__grid {
    gap: 0.85rem;
  }
}

@media (max-width: 480px) {
  .curso-nav-lateral__titulo {
    margin-left: var(--pad-x);
    margin-right: var(--pad-x);
  }

  .curso-seccion-head {
    gap: 0.65rem;
    margin-bottom: 1.05rem;
  }

  .curso-pleca-v {
    min-height: 2.5rem;
  }

  .curso-chip {
    padding: 0.45rem 0.85rem;
  }

  .curso-chip__txt {
    font-size: 0.8125rem;
  }

  .curso-quiz__intro {
    margin-bottom: 1.1rem;
    font-size: 0.875rem;
  }

  .curso-quiz__pregunta {
    padding: 0.85rem 0.8rem 0.95rem;
  }

  .curso-quiz__enunciado {
    font-size: 0.9375rem;
  }

  .curso-aprendizaje__intro {
    flex-direction: column;
    align-items: stretch;
    padding: 0.9rem 0.95rem 1rem;
    gap: 0.75rem;
  }

  .curso-aprendizaje__card {
    padding: 1rem 0.95rem 1.1rem;
  }

  .curso-tarjeta-modulo {
    padding: 1.1rem 1rem;
  }
}

/* ——— Bloqueo de unidades (evaluación formativa previa) ——— */
body.curso-unidades-guard-open {
  overflow: hidden;
}

.curso-unidades-guard[hidden] {
  display: none !important;
}

.curso-unidades-guard:not([hidden]) {
  position: fixed;
  inset: 0;
  z-index: 10060;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(1rem, env(safe-area-inset-top, 0px)) var(--pad-x) max(1.25rem, env(safe-area-inset-bottom, 0px));
  box-sizing: border-box;
}

.curso-unidades-guard__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(24, 24, 27, 0.55);
  backdrop-filter: blur(2px);
}

.curso-unidades-guard__panel {
  position: relative;
  max-width: 26rem;
  width: 100%;
  padding: 1.5rem 1.5rem 1.35rem;
  background: var(--curso-fondo-alt);
  border-radius: var(--curso-radio);
  border: 1px solid var(--curso-borde);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
  border-left: 4px solid var(--curso-rojo);
}

.curso-unidades-guard__title {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--curso-texto);
}

.curso-unidades-guard__msg {
  margin: 0 0 0.65rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--curso-texto-medio);
}

.curso-unidades-guard__detail {
  margin: 0 0 1.25rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--curso-texto);
  padding: 0.65rem 0.75rem;
  background: var(--curso-fondo);
  border-radius: var(--curso-radio-sm);
  border: 1px solid var(--curso-borde);
}

.curso-unidades-guard__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--curso-rojo);
  border: none;
  border-radius: var(--curso-radio-sm);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.curso-unidades-guard__btn:hover {
  background: #a82828;
}

.curso-unidades-guard__btn:focus-visible {
  outline: 2px solid var(--curso-rojo);
  outline-offset: 2px;
}

/* ——— Explorador post-vídeo ——— */
.curso-explicador {
  margin-top: 0.35rem;
  border: 1px solid var(--curso-borde);
  border-radius: var(--curso-radio);
  overflow: hidden;
  background: var(--curso-fondo-alt);
  box-shadow: 0 1px 0 rgba(24, 24, 27, 0.04), var(--curso-sombra-suave);
}

.curso-explicador__shell {
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 880px) {
  .curso-explicador__shell {
    grid-template-columns: minmax(14rem, 32%) minmax(0, 1fr);
    min-height: 22rem;
  }
}

.curso-explicador__rail {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem 1rem;
  background: linear-gradient(180deg, #18181b 0%, #27272a 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

@media (min-width: 880px) {
  .curso-explicador__rail {
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
  }
}

.curso-explicador__rail-kicker {
  margin: 0 0 0.55rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fda4a4;
}

.curso-explicador__paso {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  width: 100%;
  margin: 0;
  padding: 0.7rem 0.75rem;
  text-align: left;
  font: inherit;
  color: #e4e4e7;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.12s ease;
}

.curso-explicador__paso:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.1);
}

.curso-explicador__paso:focus-visible {
  outline: 2px solid #fda4a4;
  outline-offset: 2px;
}

.curso-explicador__paso.is-active {
  color: #fff;
  background: rgba(194, 46, 46, 0.22);
  border-color: rgba(194, 46, 46, 0.45);
  box-shadow: inset 3px 0 0 var(--curso-rojo);
}

.curso-explicador__paso-num {
  flex-shrink: 0;
  width: 1.65rem;
  height: 1.65rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.1);
  color: #fafafa;
}

.curso-explicador__paso.is-active .curso-explicador__paso-num {
  background: var(--curso-rojo);
}

.curso-explicador__paso-txt {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.curso-explicador__stage {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: linear-gradient(180deg, #fafafa 0%, #fff 40%);
}

.curso-explicador__progress {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--curso-borde);
}

.curso-explicador__progress-bar {
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: var(--curso-borde);
  overflow: hidden;
}

.curso-explicador__progress-fill {
  height: 100%;
  width: 25%;
  border-radius: inherit;
  background: linear-gradient(90deg, #78716c, var(--curso-rojo));
  transition: width 0.3s ease;
}

.curso-explicador__progress-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--curso-texto-medio);
  white-space: nowrap;
}

.curso-explicador__panels {
  flex: 1;
  padding: 1.25rem 1.35rem 1.1rem;
}

.curso-explicador__panel {
  animation: curso-explicador-in 0.28s ease;
}

.curso-explicador__panel[hidden] {
  display: none !important;
}

@keyframes curso-explicador-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.curso-explicador__eyebrow {
  display: block;
  margin: 0 0 0.4rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--curso-rojo);
}

.curso-explicador__title {
  margin: 0 0 0.75rem;
  font-family: "Inter", "Helvetica Neue", Helvetica, Arial, ui-sans-serif, sans-serif;
  font-size: clamp(1.15rem, 2.4vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.25;
  color: var(--curso-texto);
}

.curso-explicador__body {
  margin: 0 0 1rem;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--curso-texto-medio);
}

.curso-explicador__tip {
  margin: 0;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border-left: 4px solid var(--curso-rojo);
  background: linear-gradient(135deg, #fff7f7 0%, #fff 100%);
  border: 1px solid #fecaca;
  border-left-width: 4px;
}

.curso-explicador__tip strong {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--curso-rojo);
}

.curso-explicador__tip p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--curso-texto);
}

.curso-explicador__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding: 0 1.25rem 1.2rem;
}

.curso-explicador__nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.45rem 1rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: 10px;
  cursor: pointer;
  transition: filter 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

.curso-explicador__nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.curso-explicador__nav-btn--ghost {
  color: var(--curso-texto);
  background: #fff;
  border: 1px solid var(--curso-borde);
}

.curso-explicador__nav-btn--ghost:hover:not(:disabled) {
  background: var(--curso-fondo);
}

.curso-explicador__nav-btn--primary {
  color: #fff;
  background: var(--curso-rojo);
  border: 1px solid var(--curso-rojo);
  box-shadow: 0 4px 14px rgba(194, 46, 46, 0.28);
}

.curso-explicador__nav-btn--primary:hover:not(:disabled) {
  filter: brightness(1.05);
}

.curso-explicador__nav-btn:focus-visible {
  outline: 2px solid var(--curso-rojo);
  outline-offset: 2px;
}