/* Lector de libros: mesa oscura, libro abierto, papel y hojas que pasan. */
@font-face {
  font-family: "Literata";
  src: url("fuentes/literata.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Literata";
  src: url("fuentes/literata-italic.woff2") format("woff2");
  font-weight: 400 700;
  font-style: italic;
  font-display: swap;
}
@property --lec-sombra { syntax: "<number>"; inherits: true; initial-value: 0; }

body.lector-abierto { overflow: hidden; }

.lector {
  --lec-hueco: 48px;
  --lec-letra: 20px;
  --lec-prog: 0;
  --mesa: #1d1712;
  --mesa-luz: #3a2c20;
  --barra-txt: #e9dcc6;
  --barra-tenue: #a8977f;
  --papel: #f7f0e1;
  --papel-borde: #e2d6bd;
  --tinta: #2b241c;
  --tinta-tenue: #7d6e5a;
  --acento: #8a4b2a;
  --codigo: #efe5d0;
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  grid-template-rows: auto 1fr auto;
  color: var(--barra-txt);
  background:
    radial-gradient(ellipse 70% 60% at 50% 45%, var(--mesa-luz), transparent 75%),
    var(--mesa);
  font-family: "Literata", Georgia, serif;
}
.lector[hidden], .lector [hidden] { display: none !important; }
.lector:focus { outline: none; }
.lector[data-tema="sepia"] {
  --papel: #ecdcbc;
  --papel-borde: #d4bf97;
  --tinta: #3b2b1a;
  --tinta-tenue: #7a6346;
  --codigo: #e2cfaa;
}
.lector[data-tema="noche"] {
  --mesa: #0f0d0b;
  --mesa-luz: #211b15;
  --papel: #26221d;
  --papel-borde: #39332b;
  --tinta: #ddd2bf;
  --tinta-tenue: #9a8d79;
  --acento: #d99a6c;
  --codigo: #312c25;
}

/* barra de arriba */
.lec-barra {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  font-family: inherit;
}
.lec-titulo {
  flex: 1;
  min-width: 0;
  text-align: center;
  line-height: 1.25;
}
.lec-titulo b, .lec-titulo span {
  display: block;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.lec-titulo b { font-size: 15px; font-weight: 600; letter-spacing: .01em; }
.lec-titulo span { font-size: 13px; font-style: italic; color: var(--barra-tenue); }
.lec-boton {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--barra-txt);
  font: 14px/1 system-ui, sans-serif;
  cursor: pointer;
}
.lec-boton:hover, .lec-boton[aria-expanded="true"] { background: rgba(233, 220, 198, .1); border-color: rgba(233, 220, 198, .18); }
.lector svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.lector button:focus-visible, .lector a:focus-visible { outline: 2px solid #f0b37e; outline-offset: 2px; }

/* mesa y libro */
.lec-mesa {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 0;
  padding: 4px 12px 8px;
}
.lec-libro {
  --alto: min(calc(100dvh - 150px), 900px);
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: minmax(0, 1fr);
  width: min(calc(var(--alto) * 1.42), calc(100vw - 150px));
  height: var(--alto);
  perspective: 2600px;
  filter: drop-shadow(0 22px 30px rgba(0, 0, 0, .5)) drop-shadow(0 4px 6px rgba(0, 0, 0, .35));
}
.lec-pag {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-width: 0;
  min-height: 0;
  padding: 26px 46px 18px;
  background: var(--papel);
  color: var(--tinta);
  cursor: pointer;
}
.lec-pag.izq {
  border-radius: 6px 2px 2px 6px;
  background: linear-gradient(to left, rgba(0, 0, 0, .13), rgba(0, 0, 0, 0) 9%), var(--papel);
}
.lec-pag.der {
  border-radius: 2px 6px 6px 2px;
  background: linear-gradient(to right, rgba(0, 0, 0, .13), rgba(0, 0, 0, 0) 9%), var(--papel);
}
.lec-cabeza, .lec-folio {
  font-size: 12px;
  color: var(--tinta-tenue);
  letter-spacing: .06em;
  min-height: 1.4em;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.lec-cabeza { font-variant: small-caps; text-align: center; padding-bottom: 14px; }
.lec-folio { text-align: center; padding-top: 12px; font-variant-numeric: oldstyle-nums; }
.lec-vista { position: relative; overflow: hidden; min-height: 0; }
.lec-flujo {
  position: absolute;
  inset: 0;
  column-count: 1;
  column-gap: var(--lec-hueco);
  column-fill: auto;
  will-change: transform;
}

/* el lomo y los cantos de las hojas */
.lec-lomo {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% - 1px);
  width: 2px;
  background: rgba(0, 0, 0, .28);
  pointer-events: none;
  z-index: 3;
}
.lec-canto {
  position: absolute;
  top: 5px;
  bottom: 5px;
  background: repeating-linear-gradient(to right, var(--papel) 0 1px, var(--papel-borde) 1px 2px);
  pointer-events: none;
}
.lec-canto.izq { right: 100%; width: calc(2px + var(--lec-prog) * 12px); border-radius: 3px 0 0 3px; }
.lec-canto.der { left: 100%; width: calc(2px + (1 - var(--lec-prog)) * 12px); border-radius: 0 3px 3px 0; }

/* la hoja que gira */
.lec-hoja {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 50%;
  transform-origin: left center;
  transform-style: preserve-3d;
  z-index: 4;
  pointer-events: none;
}
.lec-hoja.hacia-atras { left: 0; transform-origin: right center; }
.lec-hoja.sola { left: 0; width: 100%; }
.lec-cara {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-rows: minmax(0, 1fr);
  backface-visibility: hidden;
}
.lec-cara.dorso { transform: rotateY(180deg); }
.lec-cara .lec-pag { background: var(--papel); }
.lec-cara.frente .lec-pag { border-radius: 2px 6px 6px 2px; }
.lec-cara.dorso .lec-pag { border-radius: 6px 2px 2px 6px; }
.lec-hoja.hacia-atras .lec-cara.frente .lec-pag { border-radius: 6px 2px 2px 6px; }
.lec-hoja.hacia-atras .lec-cara.dorso .lec-pag { border-radius: 2px 6px 6px 2px; }
.lec-cara::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: var(--lec-sombra);
  background: linear-gradient(to right, rgba(0, 0, 0, .28), rgba(0, 0, 0, .04) 40%, rgba(255, 255, 255, .08) 70%, rgba(0, 0, 0, .12));
}

/* una sola página (ventanas angostas) */
.lector.una-pagina .lec-libro { grid-template-columns: 1fr; width: min(640px, calc(100vw - 110px)); }
.lector.una-pagina .lec-pag.izq, .lector.una-pagina .lec-lomo { display: none; }
.lector.una-pagina .lec-pag.der { border-radius: 6px; background: var(--papel); }
.lector.una-pagina .lec-pag { padding: 22px 30px 16px; }

/* flechas a los lados */
.lec-flecha {
  flex: none;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  background: rgba(233, 220, 198, .08);
  color: var(--barra-txt);
  cursor: pointer;
}
.lec-flecha:hover:not(:disabled) { background: rgba(233, 220, 198, .18); }
.lec-flecha:disabled { opacity: .25; cursor: default; }
.lec-flecha svg { width: 24px; height: 24px; }

/* pie con el avance */
.lec-pie {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 2px 18px 12px;
  font: 13px/1.2 system-ui, sans-serif;
  color: var(--barra-tenue);
  font-variant-numeric: tabular-nums;
}
.lec-barra-prog { width: min(260px, 30vw); height: 3px; border-radius: 2px; background: rgba(233, 220, 198, .14); overflow: hidden; }
.lec-barra-prog span { display: block; height: 100%; width: 0; background: #d99a6c; transition: width .3s; }

/* el texto del libro */
.lec-texto {
  font-size: var(--lec-letra);
  line-height: 1.62;
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
  font-kerning: normal;
  font-variant-ligatures: common-ligatures;
  orphans: 2;
  widows: 2;
  overflow-wrap: break-word;
}
.lec-texto p { margin: 0; text-indent: 1.4em; }
.lec-texto :is(h1, h2, h3, h4, h5, hr, ul, ol, dl, blockquote, pre, figure, table, img) + p,
.lec-texto p:first-child { text-indent: 0; }
.lec-texto :is(h1, h2, h3, h4, h5) {
  font-weight: 600;
  line-height: 1.25;
  text-align: left;
  hyphens: manual;
  break-after: avoid;
  break-inside: avoid;
  margin: 1.3em 0 .6em;
}
.lec-texto > :is(h1, h2):first-child, .lec-texto > .lec-cap-titulo {
  margin: 1.6em 0 1.4em;
  font-size: 1.55em;
  font-weight: 500;
  text-align: center;
  letter-spacing: .01em;
}
.lec-texto h1 { font-size: 1.5em; }
.lec-texto h2 { font-size: 1.32em; }
.lec-texto h3 { font-size: 1.14em; }
.lec-texto :is(h4, h5) { font-size: 1em; font-style: italic; font-weight: 600; }
.lec-texto > :is(h1, h2):first-child + p::first-letter,
.lec-texto > .lec-cap-titulo + p::first-letter {
  float: left;
  font-size: 3.3em;
  line-height: .82;
  padding: .06em .08em 0 0;
  color: var(--acento);
  font-weight: 500;
}
.lec-texto a { color: var(--acento); text-underline-offset: 2px; }
.lec-texto :is(ul, ol) { margin: .5em 0; padding-left: 1.4em; text-align: left; }
.lec-texto li { margin: .2em 0; }
.lec-texto blockquote { margin: .8em 1.2em; font-style: italic; color: var(--tinta-tenue); }
.lec-texto hr { border: 0; text-align: center; margin: 1.2em 0; }
.lec-texto hr::after { content: "* * *"; color: var(--tinta-tenue); letter-spacing: .5em; }
.lec-texto :is(code, kbd) {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: .82em;
  background: var(--codigo);
  border-radius: 3px;
  padding: .05em .25em;
  hyphens: none;
}
.lec-texto pre {
  margin: .8em 0;
  padding: .7em .9em;
  background: var(--codigo);
  border-radius: 4px;
  font-size: .8em;
  line-height: 1.45;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  text-align: left;
}
.lec-texto pre code { background: none; padding: 0; font-size: 1em; }
.lec-texto :is(img, figure) { break-inside: avoid; }
.lec-texto img {
  display: block;
  max-width: 100%;
  max-height: min(calc(100dvh - 340px), 560px);
  height: auto;
  margin: .8em auto;
  object-fit: contain;
}
.lector[data-tema="noche"] .lec-texto img { filter: brightness(.88); }
.lec-texto figure { margin: .8em 0; }
.lec-texto figcaption { font-size: .82em; font-style: italic; text-align: center; color: var(--tinta-tenue); }
.lec-texto table { width: 100%; border-collapse: collapse; font-size: .78em; margin: .8em 0; text-align: left; hyphens: none; }
.lec-texto :is(td, th) { border-bottom: 1px solid var(--papel-borde); padding: .3em .4em; vertical-align: top; }
.lec-texto dt { font-weight: 600; margin-top: .5em; }
.lec-texto dd { margin: 0 0 .3em 1.2em; }
.lec-texto small { font-size: .82em; }

/* paneles: índice y ajustes */
.lec-panel {
  position: absolute;
  top: 60px;
  right: 16px;
  bottom: 16px;
  width: min(360px, calc(100vw - 32px));
  overflow-y: auto;
  padding: 18px 20px;
  border: 1px solid rgba(233, 220, 198, .14);
  border-radius: 12px;
  background: #2a221b;
  color: var(--barra-txt);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .5);
  z-index: 10;
}
#lec-ajustes { bottom: auto; }
.lec-panel h2 { margin: 0 0 12px; font-size: 18px; font-weight: 600; }
.lec-panel ol { margin: 0; padding: 0; list-style: none; counter-reset: cap; }
.lec-panel li button {
  display: block;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 6px;
  background: none;
  color: inherit;
  font: 15px/1.35 inherit;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}
.lec-panel li button:hover { background: rgba(233, 220, 198, .08); }
.lec-panel li button.actual { background: rgba(217, 154, 108, .18); color: #f3c9a3; }
.lec-licencia { margin: 16px 0 0; font: 12.5px/1.5 system-ui, sans-serif; color: var(--barra-tenue); }
.lec-licencia a { color: #e5b48c; }
.lec-panel fieldset { border: 0; margin: 0 0 16px; padding: 0; }
.lec-panel legend { padding: 0; margin-bottom: 8px; font: 600 12px/1 system-ui, sans-serif; letter-spacing: .08em; text-transform: uppercase; color: var(--barra-tenue); }
.lec-opciones { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.lec-opciones button {
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid rgba(233, 220, 198, .2);
  border-radius: 8px;
  background: transparent;
  color: var(--barra-txt);
  font: 14px/1 system-ui, sans-serif;
  cursor: pointer;
}
.lec-opciones button[aria-pressed="true"] { background: #e9dcc6; color: #2a221b; border-color: #e9dcc6; }
.lec-opciones button:disabled { opacity: .35; cursor: default; }
.lec-tam span { min-width: 60px; text-align: center; font: 14px/1 system-ui, sans-serif; font-variant-numeric: tabular-nums; }

/* aviso mientras abre o si falla */
.lec-mensaje {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  font-size: 18px;
  font-style: italic;
  color: var(--barra-txt);
  background: var(--mesa);
  z-index: 8;
  pointer-events: auto;
}
.lec-mensaje a { color: #e5b48c; }
.lector .lec-barra { position: relative; z-index: 9; }

@media (max-width: 700px) {
  .lec-boton span { display: none; }
  .lec-flecha { display: none; }
  .lec-libro { --alto: calc(100dvh - 130px); }
  .lector.una-pagina .lec-libro { width: calc(100vw - 24px); }
}