:root {
  --marfil: #f7f1e7;
  --marfil-claro: #fffdf8;
  --arena: #e9ddcc;
  --arena-oscura: #d8c5aa;
  --madera: #8a5b32;
  --madera-oscura: #4f3422;
  --dorado: #b98a3f;
  --dorado-texto: #806126;
  --tinta: #29231f;
  --tinta-suave: #655d56;
  --oscuro: #2c241e;
  --blanco: #fffdf9;
  --borde: rgba(79, 52, 34, 0.16);
  --sombra: 0 28px 70px rgba(69, 45, 27, 0.18);
  --radio: 1.25rem;
  --ancho: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--marfil-claro);
  color: var(--tinta);
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

section[id] {
  scroll-margin-top: 5.4rem;
}

:focus-visible {
  outline: 3px solid var(--dorado);
  outline-offset: 4px;
}

.salto-contenido {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 1000;
  padding: 0.7rem 1rem;
  border-radius: 0.4rem;
  background: var(--oscuro);
  color: var(--blanco);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.salto-contenido:focus {
  transform: translateY(0);
}

.contenedor {
  width: min(calc(100% - 2.5rem), var(--ancho));
  margin-inline: auto;
}

.cabecera {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(79, 52, 34, 0.1);
  background: rgba(247, 241, 231, 0.88);
  backdrop-filter: blur(14px);
}

.cabecera__interior {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.6rem;
  gap: 2rem;
}

.marca {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--madera-oscura);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.12rem;
  font-weight: 700;
  text-decoration: none;
}

.marca__simbolo {
  display: grid;
  width: 2rem;
  height: 2rem;
  flex: 0 0 2rem;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(138, 91, 50, 0.45);
  border-radius: 0.55rem;
  background: var(--marfil-claro);
}

.marca__simbolo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.navegacion {
  display: flex;
  align-items: center;
  gap: 1.55rem;
}

.navegacion a {
  color: var(--tinta-suave);
  font-size: 0.93rem;
  font-weight: 600;
  text-decoration: none;
}

.navegacion a:hover {
  color: var(--madera);
}

.cabecera__descarga {
  display: none;
  min-height: 2.4rem;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: var(--madera-oscura);
  color: var(--blanco);
  font-size: 0.82rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 18%, rgba(255, 255, 255, 0.9) 0, rgba(255, 255, 255, 0) 30%),
    linear-gradient(135deg, #f8f1e5 0%, #efe3d0 55%, #f7efe1 100%);
}

.hero::before {
  position: absolute;
  inset: auto auto -10rem -6rem;
  width: 28rem;
  height: 28rem;
  border: 1px solid rgba(185, 138, 63, 0.25);
  border-radius: 50%;
  content: "";
}

.hero__rejilla {
  position: relative;
  display: grid;
  min-height: calc(100vh - 4.6rem);
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 7rem);
  padding-block: clamp(4rem, 8vw, 7.5rem);
}

.hero__texto {
  max-width: 46rem;
}

.antetitulo {
  margin: 0 0 0.7rem;
  color: var(--dorado-texto);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--madera-oscura);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  line-height: 1.1;
}

h1 {
  margin-bottom: 0.6rem;
  font-size: clamp(3.5rem, 8vw, 6.9rem);
  letter-spacing: -0.045em;
}

.subtitulo {
  margin: 0 0 1.6rem;
  color: var(--dorado-texto);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
  font-style: italic;
}

.hero__definicion {
  max-width: 44rem;
  margin: 0 0 1.4rem;
  color: var(--madera-oscura);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.12rem, 1.65vw, 1.34rem);
  font-weight: 600;
  line-height: 1.55;
}

.hero__entradilla {
  max-width: 43rem;
  margin: 0;
  color: #494039;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.08rem, 1.55vw, 1.3rem);
  line-height: 1.65;
}

.hero__acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.2rem;
}

.boton {
  display: inline-flex;
  min-height: 3.1rem;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 750;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  transition: transform 170ms ease, box-shadow 170ms ease, background-color 170ms ease, color 170ms ease;
}

.boton:hover {
  transform: translateY(-2px);
}

.boton--principal {
  background: var(--madera-oscura);
  box-shadow: 0 12px 30px rgba(79, 52, 34, 0.18);
  color: var(--blanco);
}

.boton--principal:hover {
  background: #382419;
  box-shadow: 0 16px 35px rgba(79, 52, 34, 0.25);
}

.boton--secundario {
  border-color: rgba(79, 52, 34, 0.28);
  background: rgba(255, 253, 248, 0.55);
  color: var(--madera-oscura);
}

.boton--secundario:hover {
  border-color: var(--madera);
  background: var(--blanco);
}

.nota-descarga {
  margin: 0.75rem 0 0;
  color: var(--tinta-suave);
  font-size: 0.88rem;
}

.portada {
  position: relative;
  width: min(100%, 31rem);
  aspect-ratio: 5 / 7;
  margin: 0 auto;
  align-self: center;
  filter: drop-shadow(0 2rem 2.6rem rgba(70, 45, 28, 0.24));
  transform: perspective(1200px) rotateY(-4deg) rotateX(1deg);
}

.portada::before {
  position: absolute;
  inset: 2% auto 2% -0.65rem;
  z-index: -1;
  width: 0.7rem;
  border-radius: 4px 0 0 4px;
  background: linear-gradient(90deg, rgba(81, 51, 31, 0.45), rgba(255, 255, 255, 0.45));
  content: "";
}

.portada img {
  display: block;
  width: 100% !important;
  height: 100% !important;
  max-width: none;
  max-height: none;
  aspect-ratio: 5 / 7;
  object-fit: contain;
  border-radius: 0.2rem 0.55rem 0.55rem 0.2rem;
}

.seccion {
  padding-block: clamp(5rem, 9vw, 8rem);
}

.seccion--clara {
  background: var(--marfil);
}

.bloque-editorial {
  max-width: 960px;
}

h2 {
  margin-bottom: 1.4rem;
  font-size: clamp(2.25rem, 4.6vw, 4.2rem);
  letter-spacing: -0.035em;
}

.texto-columnas {
  columns: 2 360px;
  column-gap: 4rem;
  color: #4f4740;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.08rem;
}

.texto-columnas p {
  margin-top: 0;
  break-inside: avoid;
}

blockquote {
  margin: 3rem 0 0;
  padding: 1.2rem 0 1.2rem 2rem;
  border-left: 3px solid var(--dorado);
  color: var(--madera-oscura);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.35rem, 2.3vw, 1.9rem);
  font-style: italic;
}

blockquote p {
  margin: 0;
}

.encabezado-seccion {
  max-width: 760px;
  margin-bottom: 3rem;
}

.encabezado-seccion > p:last-child {
  max-width: 650px;
  color: var(--tinta-suave);
  font-size: 1.05rem;
}

.tarjetas {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.tarjeta {
  min-height: 100%;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  background: #fff;
  box-shadow: 0 16px 45px rgba(71, 47, 31, 0.06);
}

.tarjeta__numero,
.etapa__numero {
  display: block;
  margin-bottom: 2rem;
  color: var(--dorado-texto);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.95rem;
}

.tarjeta h3,
.etapa h3,
.edicion h3 {
  margin-bottom: 0.9rem;
  font-size: clamp(1.55rem, 2.3vw, 2rem);
}

.tarjeta p {
  margin: 0;
  color: var(--tinta-suave);
}

.seccion--oscura {
  position: relative;
  overflow: hidden;
  background: var(--oscuro);
  color: #e9dfd3;
}

.seccion--oscura::after {
  position: absolute;
  top: -15rem;
  right: -10rem;
  width: 34rem;
  height: 34rem;
  border: 1px solid rgba(232, 211, 180, 0.13);
  border-radius: 50%;
  content: "";
}

.seccion--oscura .antetitulo {
  color: #d7b57b;
}

.encabezado-seccion--claro h2 {
  color: var(--blanco);
}

.encabezado-seccion--claro > p:last-child {
  color: #d8cbbf;
}

.itinerario {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.etapa {
  min-height: 100%;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border: 1px solid rgba(255, 253, 249, 0.15);
  border-radius: var(--radio);
  background: rgba(255, 255, 255, 0.045);
}

.etapa__numero {
  margin-bottom: 1.4rem;
  color: #d7b57b;
}

.etapa h3 {
  color: var(--blanco);
}

.etapa p {
  margin: 0;
  color: #d8cbbf;
}

.indice-capitulos {
  position: relative;
  z-index: 1;
  margin-top: 1.25rem;
  border: 1px solid rgba(255, 253, 249, 0.18);
  border-radius: var(--radio);
  background: rgba(255, 255, 255, 0.035);
}

.indice-capitulos summary {
  position: relative;
  padding: 1.25rem 3.6rem 1.25rem 1.5rem;
  color: var(--blanco);
  cursor: pointer;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.18rem;
  font-weight: 600;
  list-style: none;
}

.indice-capitulos summary::-webkit-details-marker {
  display: none;
}

.indice-capitulos summary::after {
  position: absolute;
  top: 50%;
  right: 1.5rem;
  color: #d7b57b;
  content: "+";
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 1.55rem;
  font-weight: 400;
  line-height: 1;
  transform: translateY(-50%);
}

.indice-capitulos[open] summary::after {
  content: "−";
}

.indice-capitulos ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem 2.5rem;
  margin: 0;
  padding: 0 2rem 1.7rem 3.5rem;
  color: #e6dbcf;
}

.indice-capitulos li {
  padding-left: 0.25rem;
}

.indice-capitulos li::marker {
  color: #d7b57b;
  font-weight: 700;
}

.ediciones {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.35rem;
}

.ediciones--unica {
  grid-template-columns: minmax(0, 1fr);
  max-width: 800px;
}

.edicion {
  display: flex;
  min-height: 25rem;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(1.8rem, 4vw, 3.2rem);
  border: 1px solid var(--borde);
  border-radius: calc(var(--radio) + 0.3rem);
  background: var(--marfil);
}

.edicion__etiqueta {
  margin: 0 0 1.1rem;
  color: var(--dorado-texto);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.edicion > div:first-child > p:not(.edicion__etiqueta):not(.edicion__confianza) {
  max-width: 38rem;
  color: var(--tinta-suave);
  font-size: 1.05rem;
}

.edicion__confianza {
  margin: 1.3rem 0 0;
  color: var(--madera-oscura);
  font-size: 0.92rem;
  font-weight: 750;
}

.edicion__acciones {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.1rem;
  margin-top: 2.5rem;
}

.enlace-texto {
  color: var(--madera);
  font-size: 0.93rem;
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

.cierre {
  padding-block: clamp(5rem, 9vw, 8rem);
  background:
    linear-gradient(rgba(247, 241, 231, 0.93), rgba(247, 241, 231, 0.93)),
    url("/opendoor/imagenes/portada.webp") center 43% / cover no-repeat;
}

.cierre__interior {
  max-width: 900px;
  text-align: center;
}

.cierre__interior .antetitulo {
  text-align: center;
}

.cierre__interior h2 {
  color: var(--madera-oscura);
}

.cierre__cita {
  max-width: 780px;
  margin: 2.2rem auto;
  padding: 0;
  border: 0;
  color: var(--madera-oscura);
  font-size: clamp(1.22rem, 2.1vw, 1.65rem);
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
}

.cierre__interior > p:not(.antetitulo) {
  max-width: 690px;
  margin: 0 auto 2rem;
  color: #554b43;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.12rem;
}

.pie {
  padding-block: 2rem;
  background: #1f1915;
  color: #d8cec4;
}

.pie__interior {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.pie p {
  margin: 0;
}

.pie strong {
  color: var(--blanco);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.05rem;
  font-weight: 500;
}

.pie span {
  color: #aa9e94;
  font-size: 0.9rem;
}

.js .revelar {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.js .revelar.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .hero__rejilla {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 4rem;
    text-align: center;
  }

  .hero__texto {
    margin-inline: auto;
  }

  .hero__acciones {
    justify-content: center;
  }

  .portada {
    width: min(78vw, 29rem);
    transform: none;
  }

  .tarjetas,
  .itinerario {
    grid-template-columns: 1fr;
  }

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

  .edicion {
    min-height: 24rem;
  }
}

@media (max-width: 680px) {
  .contenedor {
    width: min(calc(100% - 1.5rem), var(--ancho));
  }

  .cabecera__interior {
    min-height: 4.2rem;
    gap: 0.75rem;
  }

  .navegacion {
    display: none;
  }

  .cabecera__descarga {
    display: inline-flex;
  }

  .hero__rejilla {
    padding-block: 3.5rem 4.5rem;
  }

  h1 {
    font-size: clamp(3rem, 16vw, 4.6rem);
  }

  .hero__acciones,
  .edicion__acciones {
    flex-direction: column;
    align-items: stretch;
  }

  .boton {
    width: 100%;
  }

  .portada {
    width: min(88vw, 26rem);
  }

  .seccion {
    padding-block: 4.5rem;
  }

  .texto-columnas {
    columns: 1;
  }

  blockquote {
    padding-left: 1.3rem;
  }

  .indice-capitulos ol {
    grid-template-columns: 1fr;
    padding-right: 1.2rem;
    padding-left: 3.2rem;
  }

  .cierre__cita {
    padding: 0;
  }

  .pie__interior {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* Presentación de los cuatro formatos */
.ediciones--cuatro {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.edicion--amazon {
  background: #f3eadc;
}

.boton--amazon {
  border-color: var(--madera-oscura);
  background: var(--madera-oscura);
  color: var(--blanco);
}

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

.amazon-unificado {
  max-width: 820px;
  margin: 1.35rem auto 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--borde);
  border-radius: 999px;
  background: rgba(247, 241, 231, 0.62);
  color: var(--tinta-suave);
  font-size: 0.92rem;
  text-align: center;
}

.pie__amazon {
  display: inline-block;
  margin-top: 0.35rem;
  color: #d7b57b;
  font-size: 0.82rem;
  font-weight: 750;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

@media (max-width: 900px) {
  .ediciones--cuatro {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .amazon-unificado {
    border-radius: var(--radio);
    text-align: left;
  }
}

/* Consentimiento de analítica */
.consentimiento {
  position: fixed;
  z-index: 1000;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  max-width: 980px;
  margin-inline: auto;
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  background: rgba(255, 252, 247, 0.98);
  box-shadow: 0 18px 50px rgba(40, 29, 20, 0.18);
  backdrop-filter: blur(10px);
}

.consentimiento__interior {
  display: flex;
  gap: 1rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.15rem;
}

.consentimiento__interior p {
  max-width: 680px;
  margin: 0;
  color: var(--tinta-suave);
  font-size: 0.92rem;
  line-height: 1.5;
}

.consentimiento__acciones {
  display: flex;
  flex: 0 0 auto;
  gap: 0.65rem;
}

.consentimiento__acciones .boton {
  white-space: nowrap;
}

@media (max-width: 760px) {
  .consentimiento__interior {
    align-items: stretch;
    flex-direction: column;
  }

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