/* =========================================================
   THOTY — Simulador de banca digital para personas adultas mayores
   Landing page styles
   Paleta: Azul BBVA + Verde Thot (estilo Duolingo)
   ========================================================= */

:root {
  /* Azules BBVA */
  --azul-marino: #072146;
  --azul-bbva: #004a97;
  --azul-brillante: #1973e8;
  --azul-claro: #eaf2fd;

  /* Verde Thot (de la mascota) */
  --verde-thot: #4caf50;
  --verde-thot-oscuro: #388e3c;
  --verde-thot-claro: #e8f5e9;

  /* Acentos */
  --amarillo-alerta: #ffc107;
  --rojo-alerta: #e53935;
  --naranja-cta: #ff9800;

  /* Neutros */
  --blanco: #ffffff;
  --gris-50: #f7f9fc;
  --gris-100: #eef1f6;
  --gris-300: #cbd3e0;
  --gris-500: #6b7686;
  --gris-700: #3a4354;
  --texto: #1c2333;

  /* Tipografía y espaciado — pensado para adultos mayores */
  --fuente: "Nunito", "Segoe UI", Roboto, Arial, sans-serif;
  --fs-base: 19px;
  --radio: 18px;
  --sombra: 0 8px 24px rgba(7, 33, 70, 0.10);
  --sombra-fuerte: 0 14px 34px rgba(7, 33, 70, 0.18);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.oculto {
  display: none !important;
}

.badge-completado {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--verde-thot-claro);
  color: var(--verde-thot-oscuro);
  font-size: 0.8rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 100px;
  vertical-align: middle;
  margin-left: 6px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--fuente);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--texto);
  background: var(--blanco);
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.contenedor {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* =========================================================
   BOTONES
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--fuente);
  font-weight: 800;
  font-size: 1.05rem;
  padding: 16px 32px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  line-height: 1;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primario {
  background: var(--verde-thot);
  color: var(--blanco);
  box-shadow: 0 5px 0 var(--verde-thot-oscuro);
}

.btn-primario:hover {
  background: #57bb5b;
  transform: translateY(-2px);
  box-shadow: 0 7px 0 var(--verde-thot-oscuro);
}

.btn-primario:active {
  box-shadow: 0 2px 0 var(--verde-thot-oscuro);
  transform: translateY(3px);
}

.btn-secundario {
  background: var(--blanco);
  color: var(--azul-bbva);
  border: 3px solid var(--azul-claro);
  box-shadow: 0 5px 0 var(--gris-300);
}

.btn-secundario:hover {
  background: var(--azul-claro);
}

.btn-grande {
  padding: 20px 44px;
  font-size: 1.2rem;
}

.btn-bloque {
  width: 100%;
}

/* =========================================================
   HEADER
   ========================================================= */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--gris-100);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
}

.marca {
  display: flex;
  align-items: center;
  gap: 12px;
}

.marca__icono {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.marca__nombre {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--azul-marino);
  letter-spacing: -0.5px;
}

.marca__nombre span {
  color: var(--verde-thot);
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__enlace {
  font-weight: 700;
  color: var(--gris-700);
  font-size: 1rem;
  transition: color 0.15s ease;
}

.nav__enlace:hover {
  color: var(--azul-bbva);
}

.header__acciones {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* =========================================================
   HERO
   ========================================================= */

.hero {
  position: relative;
  background: linear-gradient(180deg, var(--azul-claro) 0%, var(--blanco) 100%);
  overflow: hidden;
  padding: 76px 0 40px;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 40px;
}

.badge-confianza {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--verde-thot-claro);
  color: var(--verde-thot-oscuro);
  font-weight: 800;
  font-size: 0.95rem;
  padding: 8px 18px;
  border-radius: 100px;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: 3.1rem;
  line-height: 1.12;
  font-weight: 900;
  color: var(--azul-marino);
  letter-spacing: -1px;
  margin-bottom: 22px;
}

.hero h1 .resalte {
  color: var(--verde-thot);
}

.hero__texto {
  font-size: 1.25rem;
  color: var(--gris-700);
  max-width: 560px;
  margin-bottom: 34px;
}

.hero__acciones {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero__nota {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  color: var(--gris-500);
  font-weight: 700;
}

.hero__nota svg {
  flex-shrink: 0;
}

.hero__figura {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__burbuja-figura {
  position: relative;
  width: 100%;
  max-width: 460px;
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 30% 25%, #ffffff 0%, var(--azul-claro) 65%, #dbeafe 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--sombra-fuerte);
}

.hero__figura img {
  width: 74%;
  filter: drop-shadow(0 20px 24px rgba(7, 33, 70, 0.18));
  animation: flotar 4s ease-in-out infinite;
}

@keyframes flotar {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.chip-flotante {
  position: absolute;
  background: var(--blanco);
  border-radius: 16px;
  box-shadow: var(--sombra);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--azul-marino);
}

.chip-flotante--1 {
  top: 8%;
  left: -4%;
  animation: flotar 5s ease-in-out infinite;
}

.chip-flotante--2 {
  bottom: 10%;
  right: -6%;
  animation: flotar 4.5s ease-in-out infinite reverse;
}

.chip-flotante .punto {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--verde-thot);
}

.chip-flotante--2 .punto {
  background: var(--amarillo-alerta);
}

/* =========================================================
   TITULOS DE SECCION
   ========================================================= */

.seccion {
  padding: 88px 0;
}

.seccion--gris {
  background: var(--gris-50);
}

.seccion__cabecera {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.seccion__etiqueta {
  display: inline-block;
  color: var(--verde-thot-oscuro);
  background: var(--verde-thot-claro);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.seccion__titulo {
  font-size: 2.3rem;
  font-weight: 900;
  color: var(--azul-marino);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.seccion__texto {
  font-size: 1.15rem;
  color: var(--gris-700);
}

/* =========================================================
   COMO FUNCIONA
   ========================================================= */

.pasos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.paso {
  background: var(--blanco);
  border: 2px solid var(--gris-100);
  border-radius: var(--radio);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.paso:hover {
  transform: translateY(-6px);
  box-shadow: var(--sombra);
  border-color: var(--verde-thot);
}

.paso__numero {
  position: absolute;
  top: -16px;
  left: 24px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--azul-marino);
  color: var(--blanco);
  font-weight: 900;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.paso__figura {
  width: 108px;
  height: 108px;
  margin: 10px auto 18px;
  background: var(--azul-claro);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.paso__figura img {
  width: 62%;
  height: 62%;
  object-fit: contain;
}

.paso h3 {
  font-size: 1.2rem;
  color: var(--azul-marino);
  font-weight: 900;
  margin-bottom: 10px;
}

.paso p {
  font-size: 1rem;
  color: var(--gris-700);
}

/* =========================================================
   MODULOS
   ========================================================= */

.modulos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.tarjeta-modulo {
  background: var(--blanco);
  border-radius: 22px;
  padding: 34px 30px;
  box-shadow: var(--sombra);
  border: 2px solid var(--gris-100);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tarjeta-modulo:hover {
  transform: translateY(-8px);
  box-shadow: var(--sombra-fuerte);
}

.tarjeta-modulo__icono {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.tarjeta-modulo--transferencias .tarjeta-modulo__icono {
  background: var(--azul-claro);
}

.tarjeta-modulo--pagos .tarjeta-modulo__icono {
  background: var(--verde-thot-claro);
}

.tarjeta-modulo--fraude .tarjeta-modulo__icono {
  background: #fff3e0;
}

.tarjeta-modulo h3 {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--azul-marino);
}

.tarjeta-modulo p {
  color: var(--gris-700);
  font-size: 1.02rem;
  flex-grow: 1;
}

.tarjeta-modulo__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed var(--gris-300);
}

.tarjeta-modulo__nivel {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--verde-thot-oscuro);
  background: var(--verde-thot-claro);
  padding: 5px 12px;
  border-radius: 100px;
}

.tarjeta-modulo__ejercicios {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gris-500);
}

/* =========================================================
   SEGURIDAD / CONFIANZA
   ========================================================= */

.seguridad {
  background: linear-gradient(135deg, var(--azul-marino) 0%, var(--azul-bbva) 100%);
  border-radius: 32px;
  padding: 64px 56px;
  color: var(--blanco);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.seguridad__titulo {
  font-size: 2.1rem;
  font-weight: 900;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.seguridad__texto {
  font-size: 1.12rem;
  opacity: 0.92;
  margin-bottom: 8px;
}

.lista-seguridad {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.lista-seguridad li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  padding: 18px 20px;
}

.lista-seguridad .icono-check {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--verde-thot);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lista-seguridad strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.05rem;
}

.lista-seguridad span.detalle {
  font-size: 0.95rem;
  opacity: 0.85;
}

/* =========================================================
   CTA FINAL
   ========================================================= */

.cta-final {
  text-align: center;
  padding: 90px 0 100px;
}

.cta-final__figura {
  width: 130px;
  margin: 0 auto 18px;
}

.cta-final h2 {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--azul-marino);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta-final p {
  font-size: 1.2rem;
  color: var(--gris-700);
  max-width: 560px;
  margin: 0 auto 34px;
}

/* =========================================================
   FOOTER
   ========================================================= */

.footer {
  background: var(--azul-marino);
  color: rgba(255, 255, 255, 0.75);
  padding: 48px 0 28px;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  margin-bottom: 20px;
}

.footer .marca__nombre {
  color: var(--blanco);
}

.footer__enlaces {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

.footer__enlaces a {
  font-weight: 700;
  font-size: 0.95rem;
}

.footer__enlaces a:hover {
  color: var(--blanco);
}

.footer__legal {
  font-size: 0.88rem;
  text-align: center;
}

/* =========================================================
   MODAL — Formulario de inicio
   ========================================================= */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 33, 70, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-overlay.activo {
  display: flex;
}

.modal {
  background: var(--blanco);
  border-radius: 26px;
  max-width: 480px;
  width: 100%;
  padding: 44px 40px;
  position: relative;
  box-shadow: var(--sombra-fuerte);
  animation: aparecer 0.25s ease;
  max-height: 90vh;
  overflow-y: auto;
}

@keyframes aparecer {
  from { opacity: 0; transform: translateY(18px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal__cerrar {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--gris-100);
  color: var(--gris-700);
  font-size: 1.3rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.modal__cerrar:hover {
  background: var(--gris-300);
}

.modal__figura {
  width: 88px;
  margin: 0 auto 14px;
}

.modal h2 {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--azul-marino);
  margin-bottom: 8px;
}

.modal__subtitulo {
  text-align: center;
  color: var(--gris-500);
  font-size: 1.02rem;
  margin-bottom: 30px;
}

.campo {
  margin-bottom: 22px;
}

.campo label {
  display: block;
  font-weight: 800;
  color: var(--azul-marino);
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.campo input {
  width: 100%;
  font-family: var(--fuente);
  font-size: 1.1rem;
  padding: 14px 18px;
  border: 2.5px solid var(--gris-300);
  border-radius: 14px;
  outline: none;
  transition: border-color 0.15s ease;
}

.campo input:focus {
  border-color: var(--verde-thot);
}

.campo--radios {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 520px) {
  .campo--radios {
    grid-template-columns: 1fr;
  }
}

.radio-opcion {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 2.5px solid var(--gris-300);
  border-radius: 14px;
  padding: 14px 18px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  font-weight: 700;
}

.radio-opcion:has(input:checked) {
  border-color: var(--verde-thot);
  background: var(--verde-thot-claro);
}

.radio-opcion input {
  width: 20px;
  height: 20px;
  accent-color: var(--verde-thot);
}

.modal__error {
  display: none;
  background: #fdecea;
  color: var(--rojo-alerta);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 16px;
  border-radius: 12px;
  margin-bottom: 18px;
}

.modal__error.activo {
  display: block;
}

/* =========================================================
   DASHBOARD — Selección de lección
   ========================================================= */

.saludo {
  background: linear-gradient(180deg, var(--azul-claro) 0%, var(--blanco) 100%);
  padding: 56px 0 44px;
}

.saludo__inner {
  display: flex;
  align-items: center;
  gap: 28px;
}

.saludo__figura {
  width: 96px;
  flex-shrink: 0;
}

.saludo__titulo {
  font-size: 2rem;
  font-weight: 900;
  color: var(--azul-marino);
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.saludo__texto {
  font-size: 1.15rem;
  color: var(--gris-700);
}

.resumen {
  display: flex;
  gap: 18px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.resumen__tarjeta {
  background: var(--blanco);
  border: 2px solid var(--gris-100);
  border-radius: 16px;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 200px;
}

.resumen__icono {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--verde-thot-claro);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.resumen__valor {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--azul-marino);
  line-height: 1.2;
}

.resumen__etiqueta {
  font-size: 0.92rem;
  color: var(--gris-500);
  font-weight: 700;
}

.seccion__subtitulo-mini {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--azul-marino);
  margin: 0 0 22px;
}

.grid-modulos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.tarjeta-modulo--activa {
  border-color: var(--verde-thot);
  position: relative;
}

.tarjeta-modulo__cta {
  margin-top: 4px;
}

/* --- Tarjetas bloqueadas --- */

.tarjeta-modulo--bloqueada {
  background: var(--gris-50);
  border: 2px dashed var(--gris-300);
  filter: grayscale(0.55);
  opacity: 0.82;
  cursor: not-allowed;
  position: relative;
}

.tarjeta-modulo--bloqueada:hover {
  transform: none;
  box-shadow: none;
}

.tarjeta-modulo--bloqueada .tarjeta-modulo__icono {
  background: var(--gris-100) !important;
}

.tarjeta-modulo--bloqueada h3 {
  color: var(--gris-700);
}

.candado-flotante {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--blanco);
  border: 2px solid var(--gris-300);
  display: flex;
  align-items: center;
  justify-content: center;
}

.etiqueta-bloqueado {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--gris-100);
  color: var(--gris-500);
  font-weight: 800;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 100px;
  margin-top: 4px;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 980px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__figura {
    order: -1;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

  .pasos {
    grid-template-columns: repeat(2, 1fr);
  }

  .modulos {
    grid-template-columns: 1fr;
  }

  .seguridad {
    grid-template-columns: 1fr;
    padding: 40px 28px;
  }

  .nav {
    display: none;
  }

  .saludo__inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 560px) {
  .pasos {
    grid-template-columns: 1fr;
  }

  .header__inner {
    padding: 14px 20px;
  }

  .contenedor {
    padding: 0 20px;
  }

  .hero {
    padding: 48px 0 30px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .seccion {
    padding: 60px 0;
  }
}