/* =========================
   Reader page (aislado)
   ========================= */
body.reader-page{
  /* Ajustes base */
  --reader-font-size: 18px;
  --reader-line-height: 1.85;
  --reader-max-width: 70ch;

  /* Altura header (la setea JS; fallback seguro) */
  --header-h: 70px;

  /* Capas */
  --z-progress: 2600;
  --z-header: 2400;
  --z-dropdown: 2500;
  --z-toolbar: 2000;

  /* Tema oscuro */
  --reader-bg: #07090d;
  --reader-fg: rgba(255,255,255,.92);
  --reader-muted: rgba(255,255,255,.68);
  --reader-border: rgba(255,255,255,.14);
  --reader-card: rgba(0,0,0,.40);
  --reader-link: rgba(102,163,255,.95);

  background: var(--reader-bg);
  color: var(--reader-fg);
}

/* Tema claro (modo lectura) */
body.reader-page.reader-theme-light{
  --reader-bg: #fcfcfb;
  --reader-fg: #111;
  --reader-muted: rgba(0,0,0,.62);
  --reader-border: rgba(0,0,0,.12);
  --reader-card: rgba(255,255,255,.72);
  --reader-link: #1b4fd6;
}

/* Header por encima de toolbar y dropdown por encima de todo (menos el progreso) */
body.reader-page #header.header.sticky-top{
  z-index: var(--z-header);
}

/* Asegura que el desplegable no quede por debajo de nada */
body.reader-page .navmenu .dropdown ul{
  z-index: var(--z-dropdown);
}

/* Fondo suave (oscuro) */
body.reader-page::before{
  content:"";
  position: fixed;
  inset: -80px;
  background:
    radial-gradient(ellipse at 50% 10%, rgba(102,163,255,.10) 0%, rgba(0,0,0,0) 55%),
    radial-gradient(ellipse at 20% 30%, rgba(124,255,220,.07) 0%, rgba(0,0,0,0) 55%),
    radial-gradient(ellipse at 80% 60%, rgba(102,163,255,.06) 0%, rgba(0,0,0,0) 55%);
  z-index: -1;
  pointer-events: none;
  filter: blur(0px);
}

/* Progreso */
.reader-progress{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: var(--z-progress);
  background: transparent;
}
.reader-progress__bar{
  height: 100%;
  width: 0%;
  background: currentColor;
  opacity: .75;
  transform-origin: left center;
}

/* Toolbar */
.reader-toolbar{
  position: sticky;
  top: var(--header-h);
  z-index: var(--z-toolbar);

  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  /* Nota: color-mix no está en todos los navegadores antiguos;
     ponemos fallback abajo */
  background: rgba(0,0,0,.35);
  background: color-mix(in srgb, var(--reader-bg) 78%, transparent);

  border-bottom: 1px solid var(--reader-border);
}
.reader-toolbar .inner{
  max-width: min(1140px, 100%);
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.reader-toolbar .left,
.reader-toolbar .right{
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.reader-toolbar .label{
  font-size: 13px;
  color: var(--reader-muted);
  letter-spacing: .02em;
}

/* Botones */
.reader-btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;

  border: 1px solid var(--reader-border);
  background: rgba(0,0,0,.25);
  background: color-mix(in srgb, var(--reader-card) 70%, transparent);

  color: var(--reader-fg);
  border-radius: 12px;
  padding: 8px 10px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  line-height: 1;
  user-select: none;
  cursor: pointer;
}
.reader-btn:hover{
  filter: brightness(1.06);
  text-decoration: none;
  color: var(--reader-fg);
}
.reader-btn:active{ transform: translateY(1px); }
.reader-btn .bi{ font-size: 16px; opacity: .92; }
.reader-btn--ghost{
  background: transparent;
}

/* Área de lectura */
.reader-wrap{
  padding: 22px 0 48px;
}
.reader{
  max-width: var(--reader-max-width);
  margin: 0 auto;
  padding: 22px 18px;

  background: rgba(0,0,0,.28);
  background: color-mix(in srgb, var(--reader-card) 72%, transparent);

  border: 1px solid var(--reader-border);
  border-radius: 18px;
  box-shadow: 0 12px 40px rgba(0,0,0,.22);
}
body.reader-page.reader-theme-light .reader{
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
}

.reader h1{
  font-family: "Orbitron", sans-serif;
  font-weight: 800;
  letter-spacing: .02em;
  margin: 0 0 10px;
  font-size: 1.65rem;
  color: var(--reader-fg);
}
.reader .meta{
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--reader-muted);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.reader .meta .dot{ opacity: .55; }

.reader p, .reader li{
  font-family: "Roboto", system-ui, -apple-system, Segoe UI, Arial, sans-serif;
  font-size: var(--reader-font-size);
  line-height: var(--reader-line-height);
  letter-spacing: .01em;
  color: var(--reader-fg);
}
.reader p{
  margin: 0 0 1.05em;
}
.reader a{
  color: var(--reader-link);
  text-decoration: none;
}
.reader a:hover{
  text-decoration: underline;
}
.reader hr{
  border: 0;
  border-top: 1px solid var(--reader-border);
  margin: 22px 0;
  opacity: .85;
}

/* Variación de ancho */
body.reader-page.reader-wide{
  --reader-max-width: 82ch;
}

/* Ajuste móvil */
@media (max-width: 576px){
  body.reader-page{ --reader-font-size: 17px; }
  .reader{ padding: 18px 14px; border-radius: 16px; }
  .reader h1{ font-size: 1.35rem; }
  .reader-toolbar .label{ display:none; }
}

/* Evita que el main de tu tema “pinte” fondos raros aquí */
body.reader-page .main,
body.reader-page main.main section{
  background: transparent !important;
}

/* Encabezado superior tipo “dateline” */
.reader-dateline{
  display: flex;
  justify-content: flex-end;
  margin: 6px 0 28px;
}

.reader-dateline__block{
  text-align: right;
  font-family: "Orbitron", sans-serif;
  text-transform: uppercase;
  letter-spacing: .08em;
  line-height: 1.45;
  color: var(--reader-muted);
  font-size: 13px;
}

.reader-dateline__title{
  color: var(--reader-fg);
  font-weight: 800;
  letter-spacing: .12em;
  margin-bottom: 6px;
  font-size: 14px;
}

.reader-dateline__line{
  margin: 0;
}

/* Números un pelín más “técnicos” */
.reader-dateline__block .num{
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
}

/* (Extracto del prólogo) */
.reader-extracto{
  margin: 0 0 22px;
  font-family: "Roboto", system-ui, -apple-system, Segoe UI, Arial, sans-serif;
  font-style: italic;
  color: var(--reader-muted);
  font-size: 14px;
}

.reader-cta{
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--reader-border);
  color: var(--reader-muted);
  font-size: 14px;
  font-style: italic;
}

/* Header: animación de ocultación en página lectora */
body.reader-page #header{
  transition: transform .22s ease, opacity .22s ease;
  will-change: transform;
}

/* Cuando ocultamos el header */
body.reader-page.reader-header-hidden #header{
  transform: translateY(-110%);
  opacity: 0.98;
}

/* Si el header está oculto, la toolbar debe pegarse arriba */
body.reader-page.reader-header-hidden{
  --header-h: 0px;
}