/* ==========================================================
   Plantilla de landing page para cursos
   Cambia solo los colores en :root para adaptar la marca.
   ========================================================== */

:root {
  --color-principal: #1e6fd9;
  --color-principal-oscuro: #1656a8;
  --color-acento: #f5a623;
  --color-texto: #1f2933;
  --color-texto-suave: #52606d;
  --color-fondo: #ffffff;
  --color-fondo-alterno: #f3f6fb;
  --color-borde: #d9e2ec;
  --radio: 0.75rem;
}

/* Base: box-sizing global según el manual */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--color-texto);
  background: var(--color-fondo);
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 1rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1rem; }

/* Contenedor centrado */
.contenedor {
  width: min(100% - 2rem, 1080px);
  margin-inline: auto;
}

/* Encabezado */
.encabezado {
  background: var(--color-fondo);
  border-bottom: 1px solid var(--color-borde);
  position: sticky;
  top: 0;
  z-index: 10;
}

.encabezado-interior {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 0.75rem;
}

.encabezado-marca {
  font-weight: 700;
  color: var(--color-principal);
}

/* Botones */
.boton {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  border-radius: var(--radio);
  padding: 0.85rem 1.5rem;
  transition: background-color 0.2s ease;
}

.boton--principal {
  background: var(--color-principal);
  color: #fff;
}

.boton--principal:hover,
.boton--principal:focus-visible {
  background: var(--color-principal-oscuro);
}

.boton--pequeno {
  padding: 0.5rem 1rem;
  background: var(--color-principal);
  color: #fff;
  font-size: 0.9rem;
}

/* Hero */
.hero {
  padding-block: 3rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.etiqueta {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-principal);
}

.hero-subtitulo {
  font-size: 1.1rem;
  color: var(--color-texto-suave);
}

.precio {
  font-size: 1.1rem;
}

.precio--grande {
  font-size: 2.25rem;
  font-weight: 700;
}

.nota {
  font-size: 0.9rem;
  color: var(--color-texto-suave);
  margin-top: 0.75rem;
}

.hero-imagen {
  margin: 0;
}

/* Secciones */
.seccion {
  padding-block: 3rem;
}

.seccion--alterna {
  background: var(--color-fondo-alterno);
}

.seccion--oferta {
  background: var(--color-principal);
  color: #fff;
}

.seccion--oferta .precio--grande,
.seccion--oferta h2 {
  color: #fff;
}

.seccion--cierre {
  text-align: center;
  background: var(--color-fondo-alterno);
}

/* Tarjetas y rejillas */
.tarjeta {
  background: var(--color-fondo);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: 1.25rem;
}

.lista-tarjetas {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.rejilla {
  display: grid;
  gap: 1rem;
}

/* Lista con marca de verificación */
.lista-check {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.lista-check li {
  padding-left: 1.75rem;
  position: relative;
  margin-bottom: 0.6rem;
}

.lista-check li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--color-acento);
}

/* Video responsivo */
.video-contenedor {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
}

.video-contenedor iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: var(--radio);
}

/* Preguntas frecuentes */
.faq {
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
}

.faq p {
  margin-top: 0.75rem;
}

/* Pie */
.pie {
  border-top: 1px solid var(--color-borde);
  padding-block: 2rem;
  font-size: 0.9rem;
  color: var(--color-texto-suave);
}

/* Responsivo: escritorio */
@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .lista-tarjetas,
  .rejilla {
    grid-template-columns: repeat(3, 1fr);
  }

  h1 { font-size: 3rem; }
  h2 { font-size: 2.1rem; }
}

/* Accesibilidad: respetar preferencia de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

/* ==========================================================
   Componentes añadidos: registro, reproductor y temario
   ========================================================== */
.oculto { display: none !important; }

.contenedor--estrecho { max-width: 640px; }

.seccion-sub {
  color: var(--color-texto-suave);
  margin-bottom: 1.5rem;
}

.boton--grande { padding: 1rem 1.75rem; font-size: 1.05rem; }
.boton--bloque { display: block; width: 100%; text-align: center; border: 0; cursor: pointer; font-size: 1rem; }
.boton--blanco { background: #fff; color: var(--color-principal-oscuro); }

/* Formularios */
.formulario {
  background: var(--color-fondo);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}

.campo { display: grid; gap: 0.35rem; }
.campo label { font-weight: 700; }
.campo input {
  font: inherit;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-borde);
  border-radius: 0.5rem;
  width: 100%;
}
.campo input:focus-visible { outline: 3px solid var(--color-principal); outline-offset: 2px; }
.campo small { color: var(--color-texto-suave); font-size: 0.85rem; }

.formulario-estado { margin: 0; min-height: 1.2em; font-weight: 700; color: var(--color-principal-oscuro); }
.formulario-estado--error { color: #b42318; }

/* Reproductor */
.plataforma {
  display: grid;
  gap: 1.5rem;
}

.reproductor { min-width: 0; }

.reproductor-barra {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.etiqueta-estado {
  font-size: 0.85rem;
  color: var(--color-principal-oscuro);
}

.reproductor-marco {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #0b0f19;
  border-radius: var(--radio);
  overflow: hidden;
}

.reproductor-marco iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.reproductor-bloqueado,
.reproductor-vacio {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.5rem;
  text-align: center;
  color: #fff;
  background: rgba(11, 15, 25, 0.9);
}

/* Temario */
.temario h2 { font-size: 1.3rem; }
.temario-progreso { color: var(--color-texto-suave); font-size: 0.9rem; }

.acordeon {
  border: 1px solid var(--color-borde);
  border-radius: 0.5rem;
  margin-bottom: 0.75rem;
  background: var(--color-fondo);
}
.acordeon summary {
  cursor: pointer;
  padding: 0.75rem 1rem;
  font-weight: 700;
}

.item-clase {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  text-align: left;
  font: inherit;
  padding: 0.6rem 1rem;
  background: none;
  border: 0;
  border-top: 1px solid var(--color-borde);
  cursor: pointer;
}
.item-clase:hover,
.item-clase:focus-visible { background: var(--color-fondo-alterno); }
.item-clase--activa { background: var(--color-fondo-alterno); font-weight: 700; }
.item-clase__tag { font-size: 0.8rem; color: var(--color-principal-oscuro); font-weight: 700; }

@media (min-width: 960px) {
  .plataforma { grid-template-columns: 1.6fr 1fr; align-items: start; }
}

/* ==========================================================
   Estudio: botones, apuntes, materiales y comparación
   ========================================================== */
.boton--secundario {
  background: var(--color-fondo);
  color: var(--color-principal-oscuro);
  border: 2px solid var(--color-principal);
  cursor: pointer;
  font: inherit;
}
.boton--secundario:hover,
.boton--secundario:focus-visible { background: var(--color-fondo-alterno); }

.boton--enlace {
  background: none;
  border: 0;
  padding: 0;
  color: var(--color-principal-oscuro);
  text-decoration: underline;
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
}

.boton--pequeno { padding: 0.5rem 0.9rem; font-size: 0.9rem; cursor: pointer; border: 0; font: inherit; }

.estudio-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.panel h3 { font-size: 1.15rem; }
.panel__sub { margin-top: 1.5rem; }

.nota-form {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.nota-form input,
.nota-form textarea {
  font: inherit;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-borde);
  border-radius: 0.5rem;
  width: 100%;
}
.nota-form textarea { resize: vertical; }

.lista-notas { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.75rem; }
.lista-notas__vacia { color: var(--color-texto-suave); font-size: 0.95rem; }
.nota {
  border: 1px solid var(--color-borde);
  border-left: 4px solid var(--color-principal);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--color-fondo);
}
.nota__cabecera {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}
.nota p { margin: 0; white-space: pre-wrap; }

.material {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-borde);
}
.material__nombre { font-weight: 700; }

.rejilla--cuatro { grid-template-columns: 1fr; }

.nota-legal {
  margin-top: 1.5rem;
  font-weight: 700;
  color: var(--color-principal-oscuro);
  text-align: center;
}

@media (min-width: 768px) {
  .estudio-grid { grid-template-columns: 1fr 1fr; }
  .rejilla--cuatro { grid-template-columns: repeat(2, 1fr); }
}

/* Caja de la carpeta completa en Drive */
.carpeta-box {
  background: var(--color-fondo-alterno);
  border: 1px solid var(--color-principal);
  border-radius: var(--radio);
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  display: grid;
  gap: 0.6rem;
}
.carpeta-box h4 { margin: 0; font-size: 1.05rem; }
.carpeta-box p { margin: 0; }
.carpeta-box .boton { justify-self: start; }

/* ==========================================================
   Acceso (registro y entrar), acciones del encabezado
   ========================================================== */
.acceso-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.acceso-grid .tarjeta h3 { font-size: 1.2rem; }

.encabezado-acciones {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.boton--salir {
  background: transparent;
  color: var(--color-texto-suave);
  border: 1px solid var(--color-borde);
  cursor: pointer;
  font: inherit;
}

@media (min-width: 768px) {
  .acceso-grid { grid-template-columns: 1fr 1fr; }
}

/* ==========================================================
   Componentes migrados del sitio anterior
   ========================================================== */
.saludo { font-weight: 700; color: var(--color-principal-oscuro); font-size: 0.9rem; }
.boton--whatsapp { background: #25d366; color: #fff; }
.boton--whatsapp:hover, .boton--whatsapp:focus-visible { background: #1ebe5b; }
.boton--check { background: var(--color-fondo); border: 2px solid var(--color-principal); color: var(--color-principal-oscuro); cursor: pointer; font: inherit; }
.boton--outline { background: transparent; border: 1px solid var(--color-borde); color: var(--color-texto-suave); cursor: pointer; font: inherit; }
.hero-acciones { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1rem; }
.pildoras { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.pildora { background: var(--color-fondo-alterno); border: 1px solid var(--color-borde); border-radius: 999px; padding: 0.3rem 0.8rem; font-size: 0.85rem; }
.seccion--compacta { padding-block: 2rem 1rem; }
.olvido { margin-top: 1rem; font-size: 0.9rem; text-align: center; }
.enlace { color: var(--color-principal-oscuro); text-decoration: underline; }
.wa-flotante { position: fixed; right: 1rem; bottom: 1rem; z-index: 20; background: #25d366; color: #fff; padding: 0.7rem 1rem; border-radius: 999px; text-decoration: none; font-weight: 700; box-shadow: 0 4px 14px rgba(0,0,0,.2); }
.toast { position: fixed; left: 50%; bottom: 5rem; transform: translateX(-50%); background: #1f2933; color: #fff; padding: 0.75rem 1.1rem; border-radius: 0.75rem; max-width: 90vw; z-index: 30; box-shadow: 0 6px 18px rgba(0,0,0,.25); }
.aviso-pais { background: #fff8e1; border-bottom: 1px solid #f5d37a; padding: 0.75rem 1rem; display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; justify-content: center; }
.aviso-pais__texto { margin: 0; }
.aviso-pais__acciones { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* Medallas */
.medallas { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.medalla { border: 1px dashed var(--color-borde); border-radius: 999px; padding: 0.35rem 0.8rem; color: var(--color-texto-suave); font-size: 0.9rem; }
.medalla--activa { border-style: solid; border-color: var(--color-acento); color: var(--color-texto); background: #fff8e1; }

/* Reproductor */
.reproductor-barra__estado { font-weight: 700; font-size: 0.9rem; }
.reproductor-barra__estado--bloqueado { color: #b42318; }
.capa-bloqueo, .capa-vacia { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.75rem; padding: 1.25rem; text-align: center; color: #fff; background: rgba(11, 15, 25, 0.92); }
.capa-bloqueo__icono { font-size: 2rem; }
.capa-bloqueo h3 { font-size: 1.1rem; margin: 0; }
.capa-bloqueo p { margin: 0; font-size: 0.95rem; }
.capa-bloqueo__botones { display: flex; gap: 0.5rem; flex-wrap: wrap; justify-content: center; }
.reproductor-controles { margin-top: 1rem; }
.reproductor-controles__botones { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.5rem; }
.panel-notas, .recursos-box { margin-top: 1.25rem; background: var(--color-fondo); border: 1px solid var(--color-borde); border-radius: var(--radio); padding: 1rem 1.25rem; }
.panel-notas h3, .recursos-box h3 { font-size: 1.05rem; }
.nota-form { display: grid; gap: 0.5rem; grid-template-columns: 1fr; margin-bottom: 0.75rem; }
.nota-form input { font: inherit; padding: 0.6rem 0.8rem; border: 1px solid var(--color-borde); border-radius: 0.5rem; }
.lista-notas__vacia { color: var(--color-texto-suave); font-size: 0.95rem; }

/* Temario */
.progreso { margin-bottom: 0.75rem; }
.progreso__textos { display: flex; justify-content: space-between; font-size: 0.9rem; margin-bottom: 0.35rem; }
.progreso__barra { height: 8px; background: var(--color-fondo-alterno); border-radius: 999px; overflow: hidden; }
.progreso__relleno { height: 100%; width: 0; background: var(--color-principal); transition: width 0.3s ease; }
.buscador { width: 100%; font: inherit; padding: 0.6rem 0.8rem; border: 1px solid var(--color-borde); border-radius: 0.5rem; margin-bottom: 0.75rem; }
.temario-progreso { font-size: 0.85rem; color: var(--color-texto-suave); }

/* Venta */
.tabla-contenedor { overflow-x: auto; }
.tabla-ganancias { width: 100%; border-collapse: collapse; background: var(--color-fondo); }
.tabla-ganancias th, .tabla-ganancias td { text-align: left; padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--color-borde); }
.tabla-ganancias th { background: var(--color-fondo-alterno); }
.grid-tarjetas { display: grid; gap: 1rem; }
.tarjeta__icono { font-size: 1.6rem; display: block; margin-bottom: 0.4rem; }
.lista-incluye { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; }
.lista-incluye li { background: var(--color-fondo); border: 1px solid var(--color-borde); border-radius: var(--radio); padding: 0.7rem 0.9rem; }
.oferta__precio { margin-bottom: 0.75rem; }
.oferta__nota { display: block; opacity: 0.9; }
.oferta__aviso { font-weight: 700; }
.oferta__riesgo { font-size: 0.9rem; opacity: 0.95; }
.pasos { margin: 0 0 1rem 1.25rem; padding: 0; }
.pasos li { margin-bottom: 0.5rem; }
.pie__legal { font-size: 0.85rem; }
.faq-item { border: 1px solid var(--color-borde); border-radius: var(--radio); padding: 0.9rem 1.1rem; margin-bottom: 0.75rem; background: var(--color-fondo); }
.faq-item__pregunta { cursor: pointer; font-weight: 700; }
.faq-item__respuesta { margin: 0.6rem 0 0; }

/* Estado de la nota */
.formulario-estado { min-height: 1.2em; }
.formulario--estrecho { max-width: 520px; margin: 0 auto; }

/* ==========================================================
   Panel de acceso a Google Drive (alumnos FULL)
   ========================================================== */
.drive-acceso {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-borde);
}
.drive-acceso__card {
  background: linear-gradient(135deg, var(--color-fondo-alterno) 0%, #eef3fa 100%);
  border: 2px solid var(--color-principal);
  border-radius: var(--radio);
  padding: 1.5rem;
  text-align: center;
}
.drive-acceso__icono {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
.drive-acceso__card h3 {
  margin: 0 0 0.75rem;
  color: var(--color-principal-oscuro);
  font-size: 1.2rem;
}
.drive-acceso__texto {
  margin: 0 0 0.75rem;
  color: var(--color-texto-suave);
  font-size: 0.95rem;
  line-height: 1.6;
}
.drive-acceso__garantia {
  margin: 0.75rem 0 1rem;
  font-weight: 600;
  color: var(--color-principal-oscuro);
  font-size: 0.95rem;
}
.drive-acceso__estado {
  min-height: 1.2em;
  margin-top: 0.75rem;
  font-size: 0.9rem;
}
.drive-acceso__estado--ok { color: #166534; }
.drive-acceso__estado--error { color: #b42318; }

/* Modal de Drive */
.drive-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 15, 25, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
  animation: drive-modal-fade-in 0.2s ease;
}
.drive-modal-overlay--oculto {
  animation: drive-modal-fade-out 0.2s ease forwards;
}
@keyframes drive-modal-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes drive-modal-fade-out {
  from { opacity: 1; }
  to { opacity: 0; }
}
.drive-modal {
  background: var(--color-fondo);
  border-radius: var(--radio);
  padding: 1.75rem;
  max-width: 560px;
  width: 100%;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  animation: drive-modal-slide-up 0.25s ease;
  position: relative;
}
@keyframes drive-modal-slide-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.drive-modal__cerrar {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--color-texto-suave);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.drive-modal__cerrar:hover { background: var(--color-fondo-alterno); color: var(--color-texto); }
.drive-modal__icono {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}
.drive-modal h2 {
  margin: 0 0 0.5rem;
  font-size: 1.4rem;
  text-align: center;
}
.drive-modal__mensaje {
  color: var(--color-texto-suave);
  text-align: center;
  margin: 0 0 1.25rem;
  line-height: 1.6;
}
.drive-modal__url {
  margin-bottom: 1.25rem;
}
.drive-modal__url label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--color-texto);
}
.drive-modal__url-row {
  display: flex;
  gap: 0.5rem;
}
.drive-modal__url-row input {
  flex: 1;
  font: inherit;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-borde);
  border-radius: 0.5rem;
  background: var(--color-fondo-alterno);
  color: var(--color-texto);
}
.drive-modal__acciones {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}
.drive-modal__recordatorio {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-borde);
  font-size: 0.85rem;
  color: var(--color-texto-suave);
  text-align: center;
}
.drive-modal__recordatorio strong { color: var(--color-principal-oscuro); }

@media (max-width: 480px) {
  .drive-modal__url-row { flex-direction: column; }
  .drive-modal__acciones { flex-direction: column; }
  .drive-modal__acciones .boton { width: 100%; }
}