@font-face {
  font-family: "Poppins";
  src: url("../assets/fonts/Poppins-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Poppins";
  src: url("../assets/fonts/Poppins-Italic.ttf") format("truetype");
  font-style: italic;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Poppins";
  src: url("../assets/fonts/Poppins-Bold.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Poppins";
  src: url("../assets/fonts/Poppins-BoldItalic.ttf") format("truetype");
  font-style: italic;
  font-weight: 700;
  font-display: swap;
}

:root {
  --crema: #fdf4dc;
  --crema-fondo: #fdf4dc;
  --tinta: #11110f;
  --tinta-suave: #5d594f;
  --linea: rgba(17, 17, 15, .55);
  --ancho-hoja: min(794px, calc(100vw - 32px));
  --radio: 2px;
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
  margin: 0;
  min-width: 290px;
  color: var(--tinta);
  background: var(--crema-fondo);
  font-family: "Poppins", "Century Gothic", Arial, sans-serif;
  line-height: 1.55;
}

button, textarea { font: inherit; }
button { color: inherit; }

.barra {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 58px;
  padding: 9px max(16px, calc((100vw - 1040px) / 2));
  border-bottom: 1px solid rgba(17, 17, 15, .16);
  background: rgba(253, 244, 220, .94);
  backdrop-filter: blur(8px);
}

.marca { display: flex; align-items: center; gap: 9px; font-size: .78rem; letter-spacing: .09em; text-transform: uppercase; }
.marca-simbolo { display: grid; width: 30px; height: 30px; place-items: center; border: 1.5px solid; border-radius: 50%; font-size: 1rem; }
.logo-header {
  /* La imagen original tiene bastante margen transparente. */
  width: 88px;
  height: 88px;
  margin: -27px;
  object-fit: contain;
  flex: 0 0 auto;
}
.acciones { display: flex; align-items: center; gap: 8px; }
.estado { margin-right: 7px; color: var(--tinta-suave); font-size: .72rem; }
.estado.guardando::before { content: "● "; }

.accion, .navegacion button {
  border: 1px solid var(--tinta);
  border-radius: var(--radio);
  background: transparent;
  cursor: pointer;
  transition: background-color .18s, color .18s, opacity .18s;
}
.accion { padding: 6px 12px; font-size: .78rem; }
.accion:hover, .navegacion button:hover:not(:disabled) { color: var(--crema); background: var(--tinta); }
.accion-peligro { border-color: transparent; text-decoration: underline; text-underline-offset: 3px; }
.accion-peligro:hover { border-color: var(--tinta); }
button:focus-visible, textarea:focus-visible { outline: 3px solid rgba(17,17,15,.28); outline-offset: 3px; }

.menu-descarga { position: relative; }
.menu-descarga summary { list-style: none; user-select: none; }
.menu-descarga summary::-webkit-details-marker { display: none; }
.menu-descarga summary::after { content: " ↓"; }
.menu-descarga[open] summary { color: var(--crema); background: var(--tinta); }
.menu-descarga-opciones {
  position: absolute;
  z-index: 40;
  top: calc(100% + 9px);
  right: 0;
  width: max-content;
  min-width: 210px;
  padding: 5px 0;
  border: 1px solid var(--tinta);
  background: var(--crema);
}
.menu-descarga-opciones a,
.menu-descarga-opciones button {
  display: block;
  width: 100%;
  padding: 9px 13px;
  border: 0;
  color: var(--tinta);
  background: transparent;
  font-size: .76rem;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}
.menu-descarga-opciones a:hover,
.menu-descarga-opciones button:hover { color: var(--crema); background: var(--tinta); }

.lector { padding: clamp(18px, 4vw, 42px) 16px 28px; overflow: hidden; }
.flipbook {
  position: relative;
  width: var(--ancho-hoja);
  margin: 0 auto;
}

.pagina {
  display: none;
  width: 100%;
  min-height: calc(var(--ancho-hoja) * 1.414);
  border: 1px solid rgba(17, 17, 15, .12);
  border-radius: var(--radio);
  background: var(--crema);
  transform-origin: left center;
  backface-visibility: hidden;
  overflow: hidden;
}
.pagina.activa { display: block; }
.pagina-contenido { position: relative; display: flex; flex-direction: column; min-height: inherit; padding: clamp(36px, 8%, 74px) clamp(28px, 8.5%, 72px); }
.encabezado-pagina { margin-bottom: clamp(28px, 6vw, 52px); text-align: center; }
.encabezado-pagina p { margin: 0 0 7px; font-size: clamp(.87rem, 2.3vw, 1.05rem); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin: 13px 0 0; font-size: clamp(2rem, 7vw, 3.7rem); font-weight: 400; letter-spacing: -.035em; line-height: 1.13; text-transform: uppercase; }
h2 { max-width: 600px; margin: auto; font-size: clamp(1.3rem, 3.5vw, 1.8rem); line-height: 1.25; }
h3 { margin-bottom: 12px; font-size: 1rem; font-style: italic; font-weight: 500; }
p { margin-bottom: 1.1em; }
section { margin-bottom: clamp(20px, 4vw, 34px); }
blockquote { margin: 0; padding: 0 0 0 17px; border-left: 4px solid var(--tinta); font-size: clamp(.94rem, 2.3vw, 1.08rem); }
blockquote cite { display: block; margin-top: 5px; font-size: .86em; font-style: normal; }
.cita-compacta { font-size: .94rem; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.dos-columnas { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(22px, 5vw, 52px); }
.etiqueta { margin-bottom: 14px; font-size: .82rem; font-style: italic; letter-spacing: .05em; text-transform: uppercase; }
.frase-final { margin: auto 0 10px; text-align: center; font-size: clamp(1.02rem, 3vw, 1.32rem); }
.numero-pagina { position: absolute; right: clamp(24px, 5%, 46px); bottom: 25px; font-size: 1.1rem; }

label { display: block; margin: 0 0 10px; font-size: .95rem; }
label span { display: block; margin-top: 4px; font-size: .88rem; font-style: italic; font-weight: 400; }
.renglones {
  display: block;
  width: 100%;
  min-height: 98px;
  padding: 2px 4px 0;
  resize: vertical;
  border: 0;
  border-radius: 0;
  color: var(--tinta);
  background-color: transparent;
  background-image: repeating-linear-gradient(to bottom, transparent 0, transparent 29px, var(--linea) 30px, transparent 31px);
  font-family: "Poppins", "Century Gothic", Arial, sans-serif;
  font-size: .95rem;
  line-height: 31px;
  outline: 0;
}
.renglones::placeholder { color: rgba(17,17,15,.42); font-style: italic; }
.caracteristicas { margin: 0 0 34px; padding-left: 1.4em; }
.caracteristicas li { margin-bottom: 12px; padding-left: 5px; }
.pregunta { margin-bottom: clamp(22px, 4.5vw, 38px); }
.introduccion { max-width: 620px; margin: 0 auto clamp(28px, 5vw, 46px); text-align: center; }
.cierre { margin-top: auto; font-style: italic; }
.pagina-densa .pagina-contenido { padding-top: clamp(30px, 5.5%, 54px); padding-bottom: 54px; font-size: clamp(.72rem, 1.75vw, .91rem); line-height: 1.42; }
.pagina-densa .encabezado-pagina { margin-bottom: clamp(22px, 4vw, 38px); }
.pagina-densa section, .pagina-densa ul, .pagina-densa ol { margin-bottom: 1.35em; }
.pagina-densa li { margin-bottom: .28em; }
.pagina-densa h2 { font-size: clamp(1.05rem, 2.8vw, 1.42rem); }
.subtitulo-fuerte { margin: 1.15em 0 .2em; font-style: normal; font-weight: 700; }
.texto-centrado { text-align: center; }
.columna-memoria {
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(22px, 4vw, 38px);
  align-items: start;
}
.nota-biblica {
  display: grid;
  align-content: center;
  justify-self: center;
  width: min(100%, 320px);
  aspect-ratio: 360 / 500;
  padding: 15% 7% 6%;
  border: 0;
  background: url("../assets/marco-memorizacion.svg") center / 100% 100% no-repeat;
  text-align: center;
  line-height: 1.28;
}
.lista-sin-vineta { margin: .7em 0 0 2em; }
.renglones-amplios { min-height: 180px; }
.espacio-editorial { min-height: clamp(70px, 13vw, 150px); }

.portada-contenido { align-items: center; justify-content: space-between; padding-top: 6%; text-align: center; }
.sello { display: grid; width: 72px; height: 72px; place-content: center; border: 2px solid; border-radius: 50%; line-height: 1; }
.sello span { font-size: 1.55rem; }
.sello small { font-size: .75rem; letter-spacing: .12em; }
.logo-portada { width: 88px; height: 88px; object-fit: contain; }
.portada-titulos { margin-top: 12%; }
.sobrelinea { margin-bottom: 0; letter-spacing: .055em; text-transform: uppercase; }
.portada-bajada { margin: 8% 0 3%; }
.marco-ilustracion-portada {
  position: relative;
  width: min(84%, 550px);
  aspect-ratio: 623 / 589;
  overflow: hidden;
}

.ilustracion-portada {
  position: absolute;
  top: -114.3%;
  left: -36.6%;
  width: 173.4%;
  max-width: none;
}

.navegacion { display: flex; align-items: center; justify-content: space-between; width: var(--ancho-hoja); margin: 17px auto 0; }
.navegacion button { min-width: 112px; padding: 8px 14px; }
.navegacion button:disabled { cursor: default; opacity: .28; }
.navegacion p { margin: 0; color: var(--tinta-suave); font-size: .86rem; font-variant-numeric: tabular-nums; }
.ayuda { margin: 9px auto 0; color: var(--tinta-suave); font-size: .72rem; text-align: center; }
.aviso { position: fixed; z-index: 30; left: 50%; bottom: 24px; padding: 9px 15px; color: var(--crema); background: var(--tinta); font-size: .8rem; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; transition: .22s; }
.aviso.visible { transform: translate(-50%, 0); opacity: 1; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 620px) {
  .barra { align-items: flex-start; }
  .marca span:last-child, .estado { display: none; }
  .acciones { flex-wrap: wrap; justify-content: flex-end; }
  .accion { padding: 5px 8px; font-size: .7rem; }
  .lector { padding-inline: 8px; }
  :root { --ancho-hoja: calc(100vw - 16px); }
  .pagina { min-height: max(calc(var(--ancho-hoja) * 1.414), 760px); }
  .pagina-contenido { padding-inline: 24px; }
  .dos-columnas { grid-template-columns: 1fr; gap: 0; }
  .navegacion button { min-width: auto; }
  .navegacion button span { display: none; }
  .portada-bajada { margin: 18% 0 8%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media print {
  .barra, .navegacion, .ayuda, .aviso { display: none !important; }
  body { background: white; }
  .lector { padding: 0; overflow: visible; }
  .flipbook { width: 100%; }
  .pagina, .pagina.activa { display: block; width: 210mm; min-height: 297mm; margin: 0 auto; border: 0; break-after: page; }
}