:root {
  --primario: #23305A;
  --primario-oscuro: #172042;
  --oro: #D9A441;
  --oro-oscuro: #A8761C;
  --oro-suave: #F6E7C4;
  --fondo: #FBF7EF;
  --fondo-suave: #F3ECDD;
  --borde: #E6DCC8;
  --tinta: #1B2336;
  --suave: #5B6170;
  --blanco: #FFFFFF;
  --verde: #2F7D5B;
  --verde-suave: #E2F2EA;
  --naranja-suave: #FBEBDD;
  --serif: "Literata", Georgia, serif;
  --sombra: 0 1px 2px rgba(27, 35, 54, .05), 0 10px 30px rgba(27, 35, 54, .08);
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--fondo); color: var(--tinta); font-family: "Nunito Sans", system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 17px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: var(--primario); }
h1, h2, h3 { margin: 0; }
p { margin: 0; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--oro); outline-offset: 2px; }

.contenedor { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.angosto { max-width: 680px; }
.centro { text-align: center; }
.chico { font-size: 14px; }
.suave { color: var(--suave); }
.eyebrow { font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--oro-oscuro); margin-bottom: 10px; }

.boton { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 54px; padding: 12px 22px; border-radius: 16px; border: 0; background: var(--primario); color: var(--blanco); font-weight: 800; font-size: 17px; text-decoration: none; cursor: pointer; text-align: center; }
.boton:hover { background: var(--primario-oscuro); }
.boton-sec { background: transparent; color: var(--primario); border: 2px solid var(--primario); }
.boton-sec:hover { background: var(--fondo-suave); }
.boton-oro { background: var(--oro); color: var(--primario-oscuro); }
.boton-oro:hover { background: #CB9532; }
.boton-chico { min-height: 42px; padding: 6px 16px; font-size: 15px; border-radius: 12px; }
.boton-grande { width: 100%; margin-top: 20px; }

/* Arriba */
.tope { position: sticky; top: 0; z-index: 10; background: rgba(251, 247, 239, .92); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(230, 220, 200, .7); }
.tope-fila { display: flex; align-items: center; justify-content: space-between; min-height: 64px; }
.marca { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--tinta); font-family: var(--serif); font-weight: 600; font-size: 22px; }

/* Hero */
.hero { padding: 40px 0 56px; }
.hero-grid { display: grid; gap: 40px; align-items: center; }
.hero h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(36px, 8vw, 58px); line-height: 1.08; letter-spacing: -.02em; }
.hero-sub { font-size: 19px; color: var(--suave); margin-top: 18px; max-width: 34em; }
.hero-botones { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.hero-botones .boton { flex: 1 1 220px; }
.hero-nota { margin-top: 16px; font-size: 14px; color: var(--suave); }


/* Demo animada del celular */
.demo { margin: 0; justify-self: center; width: 100%; max-width: 360px; display: flex; flex-direction: column; align-items: center; gap: 18px; }
.demo-tel { width: 300px; border-radius: 44px; padding: 11px; background: var(--primario-oscuro); box-shadow: 0 30px 60px -20px rgba(23, 32, 66, .55), inset 0 0 0 2px #2E3C6B; }
.demo-pantalla { position: relative; height: 580px; border-radius: 34px; background: var(--fondo); overflow: hidden; display: flex; flex-direction: column; font-size: 13px; line-height: 1.45; }
.d-estado { display: flex; justify-content: space-between; align-items: center; padding: 12px 22px 4px; font-weight: 800; font-size: 12px; }
.d-bateria { width: 22px; height: 11px; border: 1.5px solid var(--tinta); border-radius: 3px; padding: 1px; }
.d-bateria i { display: block; width: 70%; height: 100%; background: var(--tinta); border-radius: 1px; }
.d-cabeza { display: flex; justify-content: space-between; align-items: center; padding: 6px 14px 8px; }
.d-marca { display: inline-flex; align-items: center; gap: 6px; font-family: var(--serif); font-weight: 600; font-size: 15px; }
.d-racha { display: inline-flex; align-items: center; gap: 4px; height: 24px; padding: 0 9px; border-radius: 999px; background: var(--oro-suave); color: var(--oro-oscuro); font-weight: 800; font-size: 12px; transition: transform .3s; }
.d-racha.sube { animation: d-pop .7s ease; }
@keyframes d-pop { 0% { transform: scale(1); } 40% { transform: scale(1.35); background: var(--oro); color: var(--primario-oscuro); } 100% { transform: scale(1); } }
.d-cuerpo { flex: 1; padding: 6px 14px 12px; display: flex; flex-direction: column; gap: 9px; overflow: hidden; }
.d-cuerpo > * { animation: d-entra .45s ease both; }
@keyframes d-entra { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.d-nav { display: grid; grid-template-columns: repeat(4, 1fr); padding: 6px 6px 14px; background: var(--blanco); border-top: 1px solid var(--borde); }
.d-nav span { display: flex; flex-direction: column; align-items: center; gap: 1px; padding: 5px 0; border-radius: 10px; font-size: 10px; font-weight: 700; color: var(--suave); transition: background .3s, color .3s; }
.d-nav span.activo { background: var(--fondo-suave); color: var(--primario); }
.d-nav span.activo svg { color: var(--oro-oscuro); }
.d-eyebrow { font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--oro-oscuro); }
.d-h { font-family: var(--serif); font-weight: 600; font-size: 18px; line-height: 1.25; }
.d-sub { color: var(--suave); }
.d-pregunta { font-family: var(--serif); font-weight: 600; font-size: 15px; line-height: 1.3; }
.d-pasaje { background: var(--blanco); border-radius: 14px; padding: 12px; box-shadow: var(--sombra); font-family: var(--serif); font-size: 13.5px; line-height: 1.6; }
.d-pasaje sup { font-family: "Nunito Sans", system-ui, sans-serif; font-weight: 800; font-size: 9px; color: var(--oro-oscuro); margin-right: 2px; }
.d-pasaje mark { color: inherit; background: linear-gradient(var(--oro-suave), var(--oro-suave)) no-repeat 0 85% / 0% 55%; transition: background-size 1.1s ease; }
.d-pasaje mark.on { background-size: 100% 55%; }
.d-campo { min-height: 64px; background: var(--blanco); border: 1.5px solid var(--borde); border-radius: 12px; padding: 9px 10px; font-size: 13px; }
.d-campo.foco { border-color: var(--primario); box-shadow: 0 0 0 3px rgba(217, 164, 65, .3); }
.d-campo.corto { min-height: 0; }
.d-campo .vacio { color: #9AA0AC; }
.d-cursor { display: inline-block; width: 1.5px; height: 14px; background: var(--primario); vertical-align: -2px; margin-left: 1px; animation: d-parpadeo 1s steps(1) infinite; }
@keyframes d-parpadeo { 50% { opacity: 0; } }
.d-boton { display: flex; align-items: center; justify-content: center; min-height: 38px; border-radius: 12px; background: var(--primario); color: var(--blanco); font-weight: 800; font-size: 13px; transition: transform .15s, background .2s; }
.d-boton.oprimido { transform: scale(.96); background: var(--primario-oscuro); }
.d-boton.pensando { background: #8B92A8; }
.d-tutor { background: var(--blanco); border-radius: 14px; padding: 11px 12px; border-top: 4px solid var(--verde); box-shadow: var(--sombra); display: flex; flex-direction: column; gap: 5px; }
.d-etiqueta { align-self: flex-start; font-size: 9.5px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: var(--verde); background: var(--verde-suave); padding: 2px 8px; border-radius: 999px; }
.d-aviso { align-self: center; background: var(--tinta); color: var(--blanco); padding: 7px 12px; border-radius: 10px; font-weight: 700; font-size: 12px; }
.d-cargando { display: flex; align-items: center; gap: 8px; color: var(--suave); font-weight: 700; padding: 6px 2px; }
.d-puntos { display: inline-flex; gap: 3px; }
.d-puntos i { width: 6px; height: 6px; border-radius: 50%; background: var(--suave); animation: d-salto 1s infinite; }
.d-puntos i:nth-child(2) { animation-delay: .15s; }
.d-puntos i:nth-child(3) { animation-delay: .3s; }
@keyframes d-salto { 0%, 60%, 100% { transform: none; opacity: .5; } 30% { transform: translateY(-4px); opacity: 1; } }
.d-bloque { background: var(--blanco); border-radius: 12px; padding: 9px 11px; box-shadow: var(--sombra); }
.d-bloque b { display: block; font-size: 9.5px; letter-spacing: .07em; text-transform: uppercase; color: var(--oro-oscuro); margin-bottom: 2px; }
.d-chat { display: flex; flex-direction: column; gap: 8px; }
.d-msj { max-width: 86%; padding: 8px 11px; border-radius: 14px; animation: d-entra .4s ease both; }
.d-msj.persona { align-self: flex-end; background: var(--primario); color: var(--blanco); border-bottom-right-radius: 4px; }
.d-msj.maestro { align-self: flex-start; background: var(--blanco); box-shadow: var(--sombra); border-bottom-left-radius: 4px; }
.d-msj u { text-decoration-color: var(--oro); text-decoration-thickness: 2px; text-underline-offset: 2px; font-weight: 800; color: var(--primario); }
.d-chips { display: flex; flex-wrap: wrap; gap: 5px; }
.d-chip { padding: 5px 9px; border-radius: 999px; border: 1.5px solid var(--borde); background: var(--blanco); font-weight: 700; font-size: 11.5px; }
.d-miembros { display: flex; flex-wrap: wrap; gap: 5px; }
.d-miembro { display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px 3px 3px; border-radius: 999px; background: var(--blanco); font-weight: 700; font-size: 11.5px; transition: background .4s; }
.d-miembro em { width: 18px; height: 18px; border-radius: 50%; background: var(--primario); color: var(--oro-suave); font-style: normal; font-size: 9.5px; display: inline-flex; align-items: center; justify-content: center; }
.d-miembro.listo { background: var(--verde-suave); }
.d-miembro.listo::after { content: "✓"; color: var(--verde); font-weight: 800; }
.d-respuesta { background: var(--blanco); border-radius: 14px; padding: 10px 12px; box-shadow: var(--sombra); display: flex; flex-direction: column; gap: 5px; }
.d-amen { align-self: flex-start; padding: 4px 11px; border-radius: 999px; border: 1.5px solid var(--borde); background: var(--blanco); font-weight: 800; font-size: 11.5px; transition: background .3s, border-color .3s; }
.d-amen.on { background: var(--oro-suave); border-color: var(--oro); color: var(--oro-oscuro); }
.d-dedo { position: absolute; left: 0; top: 0; width: 30px; height: 30px; margin: -15px 0 0 -15px; border-radius: 50%; background: rgba(23, 32, 66, .28); border: 2px solid rgba(255, 255, 255, .9); box-shadow: 0 2px 8px rgba(23, 32, 66, .3); opacity: 0; pointer-events: none; transition: transform .6s cubic-bezier(.4, .1, .2, 1), opacity .3s; z-index: 5; }
.d-dedo.ve { opacity: 1; }
.d-dedo.toca::after { content: ""; position: absolute; inset: -8px; border-radius: 50%; border: 2px solid rgba(217, 164, 65, .9); animation: d-onda .5s ease-out forwards; }
@keyframes d-onda { from { transform: scale(.4); opacity: 1; } to { transform: scale(1.3); opacity: 0; } }

.demo-pasos { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; width: 100%; }
.demo-pasos button { position: relative; overflow: hidden; display: flex; flex-direction: column; align-items: flex-start; gap: 1px; text-align: left; padding: 10px 12px 12px; border-radius: 14px; border: 1.5px solid var(--borde); background: var(--blanco); font: inherit; color: var(--tinta); cursor: pointer; }
.demo-pasos b { font-size: 14px; }
.demo-pasos span { font-size: 12.5px; color: var(--suave); line-height: 1.3; }
.demo-pasos i { position: absolute; left: 0; bottom: 0; height: 3px; width: 0; background: var(--oro); }
.demo-pasos button.activo { border-color: var(--primario); }
.demo-pasos button.activo i { animation: d-avance var(--dur, 12s) linear forwards; }
@keyframes d-avance { to { width: 100%; } }
@media (prefers-reduced-motion: reduce) {
  .d-cuerpo > *, .d-msj { animation: none; }
  .demo-pasos button.activo i { animation: none; width: 100%; }
}

/* Prueba */
.prueba { background: var(--blanco); padding: 56px 0; border-top: 1px solid var(--borde); border-bottom: 1px solid var(--borde); scroll-margin-top: 64px; }
.prueba h2, .seccion h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(28px, 5.5vw, 40px); line-height: 1.15; letter-spacing: -.01em; }
.verso-grande { margin: 22px 0; padding: 22px; border-radius: 20px; background: var(--fondo); border-left: 5px solid var(--oro); }
.verso-grande span { display: block; font-family: var(--serif); font-size: 24px; line-height: 1.4; }
.verso-grande cite { display: block; margin-top: 10px; font-style: normal; font-weight: 800; font-size: 14px; color: var(--oro-oscuro); letter-spacing: .06em; text-transform: uppercase; }
.opciones { display: flex; flex-direction: column; gap: 10px; }
.opcion { display: flex; gap: 12px; align-items: center; text-align: left; padding: 14px 16px; min-height: 60px; border-radius: 16px; border: 2px solid var(--borde); background: var(--blanco); font: inherit; font-weight: 700; color: var(--tinta); cursor: pointer; }
.opcion:hover:not(:disabled) { border-color: var(--primario); }
.opcion b { width: 32px; height: 32px; border-radius: 50%; background: var(--fondo-suave); display: inline-flex; align-items: center; justify-content: center; flex: none; }
.opcion.bien { border-color: var(--verde); background: var(--verde-suave); }
.opcion.bien b { background: var(--verde); color: var(--blanco); }
.opcion.mal { border-color: #D08A4C; background: var(--naranja-suave); }
.opcion:disabled { cursor: default; }
.revelar { margin-top: 22px; display: flex; flex-direction: column; gap: 14px; }
.revelar-titulo { font-family: var(--serif); font-weight: 600; font-size: 24px; }
.pasaje { background: var(--fondo); border-radius: 18px; padding: 18px; font-family: var(--serif); font-size: 19px; line-height: 1.65; }
.pasaje sup { font-family: "Nunito Sans", system-ui, sans-serif; font-weight: 800; font-size: 12px; color: var(--oro-oscuro); margin-right: 3px; }
.pasaje mark { background: linear-gradient(transparent 55%, var(--oro-suave) 55%); color: inherit; }
.pasaje small { display: block; margin-top: 8px; font-family: "Nunito Sans", system-ui, sans-serif; font-size: 13px; color: var(--suave); }
.revelar-cierre { font-weight: 800; }

/* Secciones */
.seccion { padding: 64px 0; }
.seccion > .contenedor > h2 + p, .seccion .suave-claro { margin-top: 12px; }
.funciones { display: grid; gap: 14px; margin-top: 32px; }
.funcion { background: var(--blanco); border-radius: 22px; padding: 22px; box-shadow: var(--sombra); display: flex; flex-direction: column; gap: 8px; }
.funcion svg { color: var(--oro-oscuro); }
.funcion h3 { font-size: 19px; }
.funcion p { color: var(--suave); }
.oscura { background: var(--primario); color: var(--blanco); }
.oscura .eyebrow { color: var(--oro); }
.oscura h2 { color: var(--blanco); }
.suave-claro { color: #C9CEDE; }
.lista-ruta { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-direction: column; gap: 8px; }
.lista-ruta li { display: flex; gap: 14px; align-items: center; padding: 12px 14px; border-radius: 16px; background: rgba(255, 255, 255, .07); }
.lista-ruta b { width: 34px; height: 34px; border-radius: 50%; background: var(--oro); color: var(--primario-oscuro); display: inline-flex; align-items: center; justify-content: center; flex: none; font-size: 15px; }
.lista-ruta span { display: flex; flex-direction: column; font-weight: 700; font-family: var(--serif); font-size: 18px; }
.lista-ruta small { font-family: "Nunito Sans", system-ui, sans-serif; font-weight: 600; font-size: 14px; color: #C9CEDE; }
.pasos { margin: 24px 0 0; padding: 0; list-style: none; counter-reset: paso; display: flex; flex-direction: column; gap: 10px; }
.pasos li { counter-increment: paso; display: flex; gap: 14px; align-items: flex-start; background: var(--blanco); border-radius: 16px; padding: 14px 16px; box-shadow: var(--sombra); }
.pasos li::before { content: counter(paso); width: 30px; height: 30px; border-radius: 50%; background: var(--primario); color: var(--oro); font-weight: 800; font-size: 14px; display: inline-flex; align-items: center; justify-content: center; flex: none; }

/* Planes */
.planes { background: var(--fondo-suave); scroll-margin-top: 64px; }
.tarjetas-plan { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 28px; }
.tarjeta-plan { position: relative; background: var(--blanco); border-radius: 20px; padding: 20px 16px; border: 2px solid var(--borde); display: flex; flex-direction: column; gap: 4px; }
.tarjeta-plan.destacada { border-color: var(--primario); }
.tarjeta-plan h3 { font-size: 15px; letter-spacing: .06em; text-transform: uppercase; color: var(--suave); }
.precio { font-family: var(--serif); font-weight: 600; font-size: 30px; line-height: 1.1; }
.precio small { display: block; margin-top: 4px; font-family: "Nunito Sans", system-ui, sans-serif; font-size: 14px; font-weight: 700; color: var(--suave); }
.sello { position: absolute; top: -12px; right: 12px; background: var(--oro); color: var(--primario-oscuro); font-weight: 800; font-size: 12px; padding: 4px 10px; border-radius: 999px; }
.incluye { list-style: none; padding: 0; margin: 22px 0 0; display: flex; flex-direction: column; gap: 10px; }
.incluye li { display: flex; gap: 10px; align-items: center; font-weight: 700; }
.incluye li::before { content: ""; width: 22px; height: 22px; flex: none; border-radius: 50%; background: var(--verde) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center / 14px no-repeat; }

/* Preguntas */
.pregunta { background: var(--blanco); border-radius: 16px; padding: 4px 18px; margin-top: 10px; box-shadow: var(--sombra); }
.pregunta summary { cursor: pointer; font-weight: 800; padding: 14px 0; list-style-position: outside; }
.pregunta p { color: var(--suave); padding-bottom: 16px; }

.cierre { background: var(--primario); color: var(--blanco); padding: 64px 0; }
.cierre h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(30px, 6vw, 44px); }
.cierre p { color: #C9CEDE; margin: 12px 0 24px; }
.pie { padding: 28px 0 40px; font-size: 14px; color: var(--suave); }
.pie-fila { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

@media (min-width: 860px) {
  .hero { padding: 72px 0 88px; }
  .hero-grid { grid-template-columns: 1.15fr .85fr; }
  .funciones { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}