/* ============================================================
   iSender — sitio público
   Paleta tomada de isender-ec.com para mantener la identidad.
   ============================================================ */

:root {
  --tinta: #16213a;
  --tinta-fuerte: #101a2e;
  --celeste: #47b2e4;
  --azul: #1e8bc2;
  --gris: #5b6478;
  --gris-suave: #98a1b3;
  --fondo-suave: #f6f8fb;
  --borde: #e4e9f0;
  --verde: #25d366;
  --radio: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Poppins, system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--tinta);
  background: #fff;
  line-height: 1.65;
  font-size: 16px;
}

a {
  color: var(--azul);
}

.contenedor {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Barra superior --- */

.barra {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--borde);
}

.barra .contenedor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 72px;
}

.marca {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.5px;
  color: var(--tinta);
  text-decoration: none;
}

.marca span {
  color: var(--celeste);
}

.menu {
  display: flex;
  align-items: center;
  gap: 26px;
}

.menu a {
  color: var(--gris);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}

.menu a:hover {
  color: var(--tinta);
}

.boton {
  display: inline-block;
  background: var(--celeste);
  color: #fff;
  text-decoration: none;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
}

.boton:hover {
  background: var(--azul);
}

.boton.oscuro {
  background: var(--tinta);
}

.boton.oscuro:hover {
  background: var(--tinta-fuerte);
}

/* --- Portada --- */

.portada {
  background: linear-gradient(170deg, #eaf4fb 0%, #d7e9f7 45%, #c3ddf2 100%);
  padding: 90px 0 100px;
  text-align: center;
}

.portada h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
  margin: 0 0 20px;
  letter-spacing: -1px;
}

.portada h1 em {
  font-style: normal;
  color: var(--azul);
}

.portada p {
  max-width: 620px;
  margin: 0 auto 32px;
  color: var(--gris);
  font-size: 18px;
}

.acciones {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Cifras --- */

.cifras {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  border-bottom: 1px solid var(--borde);
}

.cifra {
  text-align: center;
  padding: 34px 16px;
  border-right: 1px solid var(--borde);
}

.cifra:last-child {
  border-right: none;
}

.cifra strong {
  display: block;
  font-size: 30px;
  color: var(--azul);
  letter-spacing: -0.5px;
}

.cifra span {
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--gris-suave);
  font-weight: 600;
}

/* --- Secciones --- */

section {
  padding: 74px 0;
}

section.alterna {
  background: var(--fondo-suave);
}

h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  margin: 0 0 14px;
  letter-spacing: -0.6px;
}

.subtitulo {
  color: var(--gris);
  max-width: 660px;
  margin: 0 0 40px;
}

.rejilla {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 22px;
}

.tarjeta {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 26px;
}

.tarjeta h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.tarjeta p {
  margin: 0;
  color: var(--gris);
  font-size: 15px;
}

.icono {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: rgba(71, 178, 228, 0.15);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  color: var(--azul);
}

/* --- Documentos legales --- */

.documento {
  max-width: 800px;
  margin: 0 auto;
  padding: 56px 24px 90px;
}

.documento h1 {
  font-size: 34px;
  margin: 0 0 8px;
  letter-spacing: -0.8px;
}

.documento .fecha {
  color: var(--gris-suave);
  font-size: 14px;
  margin-bottom: 40px;
}

.documento h2 {
  font-size: 21px;
  margin: 40px 0 12px;
  padding-top: 18px;
  border-top: 1px solid var(--borde);
}

.documento h3 {
  font-size: 17px;
  margin: 26px 0 8px;
}

.documento p,
.documento li {
  color: #2f3a52;
}

.documento ul {
  padding-left: 22px;
}

.documento li {
  margin-bottom: 8px;
}

.recuadro {
  background: var(--fondo-suave);
  border: 1px solid var(--borde);
  border-left: 4px solid var(--celeste);
  border-radius: 10px;
  padding: 18px 20px;
  margin: 26px 0;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 15px;
}

th,
td {
  text-align: left;
  padding: 11px 12px;
  border-bottom: 1px solid var(--borde);
  vertical-align: top;
}

th {
  color: var(--gris-suave);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

/* --- Pie --- */

.pie {
  background: var(--tinta);
  color: #c7cedb;
  padding: 52px 0 34px;
  font-size: 14px;
}

.pie a {
  color: #c7cedb;
  text-decoration: none;
}

.pie a:hover {
  color: #fff;
}

.pie-rejilla {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 34px;
  margin-bottom: 34px;
}

.pie .marca {
  color: #fff;
  margin-bottom: 12px;
}

.pie h4 {
  color: #fff;
  font-size: 14px;
  margin: 0 0 12px;
}

.pie ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pie li {
  margin-bottom: 8px;
}

.pie-legal {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 22px;
  color: var(--gris-suave);
  font-size: 13px;
}

@media (max-width: 760px) {
  .menu a:not(.boton) {
    display: none;
  }
  .pie-rejilla {
    grid-template-columns: 1fr;
  }
  .cifra {
    border-right: none;
    border-bottom: 1px solid var(--borde);
  }
}

/* ============================================================
   Bloques de la página de inicio ampliada
   ============================================================ */

.pildora {
  display: inline-block;
  background: #fff;
  border: 1px solid rgba(30, 139, 194, 0.3);
  box-shadow: 0 2px 8px rgba(22, 33, 58, 0.06);
  color: var(--azul);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.dos-columnas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.panel-destacado {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 28px;
  box-shadow: 0 10px 30px rgba(22, 33, 58, 0.06);
}

.panel-destacado h3 {
  margin: 0 0 16px;
  font-size: 18px;
}

.lista-check {
  list-style: none;
  padding: 0;
  margin: 0;
}

.lista-check li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  color: var(--gris);
  font-size: 15px;
}

.lista-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(71, 178, 228, 0.18);
  box-shadow: inset 0 0 0 2px var(--celeste);
}

/* --- Pasos numerados --- */

.pasos {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 18px;
}

.pasos li {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 24px;
}

.pasos .numero {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--tinta);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.pasos h3 {
  margin: 0 0 6px;
  font-size: 17px;
}

.pasos p {
  margin: 0;
  color: var(--gris);
  font-size: 15px;
}

/* --- Tarjetas que son enlaces --- */

.tarjeta.enlace {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}

.tarjeta.enlace:hover {
  border-color: var(--celeste);
  transform: translateY(-2px);
}

.tarjeta .flecha {
  display: inline-block;
  margin-top: 14px;
  color: var(--azul);
  font-weight: 600;
  font-size: 14px;
}

/* --- Preguntas frecuentes --- */

.preguntas details {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 12px;
  padding: 18px 22px;
  margin-bottom: 12px;
}

.preguntas summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  /* "display: block" es lo que quita el triangulito en los
     navegadores actuales; las otras dos reglas cubren los antiguos. */
  display: block;
  list-style: none;
  position: relative;
  padding-right: 28px;
}

.preguntas summary::marker,
.preguntas summary::-webkit-details-marker {
  display: none;
  content: "";
}

.preguntas summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: -2px;
  font-size: 22px;
  font-weight: 400;
  color: var(--celeste);
}

.preguntas details[open] summary::after {
  content: "\2212";
}

.preguntas p {
  color: var(--gris);
  margin: 14px 0 0;
  font-size: 15px;
}

/* --- Palabra clave de baja --- */

.palabra-clave {
  background: var(--tinta);
  color: #fff;
  border-radius: 10px;
  padding: 16px;
  text-align: center;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 16px;
}

@media (max-width: 860px) {
  .dos-columnas {
    grid-template-columns: 1fr;
    gap: 26px;
  }
}