/* ============================================================
   PELAYO — Flipbook del adelanto (StPageFlip)
   Hereda los tokens de pelayo.css (papel · oro · musgo · azul)
   ============================================================ */

.reader{
  position:relative;
  min-height:100svh;
  padding:clamp(92px,13vh,150px) var(--pad) clamp(40px,7vh,90px);
  display:flex;flex-direction:column;align-items:center;justify-content:flex-start;
}

.reader__head{text-align:center;max-width:680px;margin:0 auto clamp(26px,4vw,44px);}
.reader__head .kicker{justify-content:center;}
.reader__head h1{
  font-family:var(--font-display);font-weight:900;text-transform:uppercase;
  font-size:clamp(1.9rem,5vw,3.2rem);letter-spacing:.05em;line-height:1;margin-bottom:.5rem;
}
.reader__head p{color:var(--ink-dim);font-family:var(--font-script);font-style:italic;font-size:clamp(1.05rem,2vw,1.3rem);margin:0;}

/* ---- Escenario del libro ---- */
.reader__stage{
  width:100%;
  display:flex;align-items:center;justify-content:center;
  gap:clamp(10px,2vw,26px);
  perspective:2400px;
}

#flipbook{margin:0 auto;width:100%;max-width:940px;touch-action:pan-y;}

/* Cada hoja: ocupa el slot que StPageFlip le asigna */
.page{
  position:relative;width:100%;height:100%;overflow:hidden;
  background:
    linear-gradient(180deg,#fdfaf3,#f4ecdb);
  color:var(--ink);
  box-shadow:inset 0 0 60px rgba(120,90,30,.06);
}
/* (Sin grano SVG por página: feTurbulence ×32 es muy costoso de pintar.
   El degradado de papel basta; el grano queda en el fondo global.) */

/* Sombra del lomo según el lado (StPageFlip marca left/right) */
.stf__item .page{box-shadow:inset 0 0 50px rgba(120,90,30,.05);}
.--left .page,.page--left{box-shadow:inset -22px 0 32px -22px rgba(60,40,12,.5);}
.page--right{box-shadow:inset 22px 0 32px -22px rgba(60,40,12,.5);}

/* ---- Texto de cuerpo (escala con --k) ---- */
.page-inner{
  position:absolute;inset:0;
  box-sizing:border-box;
  padding:calc(2.7em) calc(2.7em) calc(3.4em);
  font-family:var(--font-body);
  font-size:calc(17px * var(--k,1));
  line-height:1.6;
  color:#2a2619;
  overflow:hidden;
}
.page-inner p{margin:0;text-indent:1.4em;text-align:justify;hyphens:auto;-webkit-hyphens:auto;}
.page-inner p.cont{text-indent:0;}
.page-inner p.place-inline{
  text-indent:0;text-align:center;font-style:italic;font-family:var(--font-script);
  color:var(--gold-deep);font-size:1.05em;margin:.4em 0 1em;
}
/* Capitular dorada en el primer párrafo del capítulo */
.page-inner p.lead{text-indent:0;}
.page-inner p.lead::first-letter{
  font-family:var(--font-display);font-weight:700;
  float:left;font-size:3.2em;line-height:.72;
  padding:.06em .14em 0 0;color:var(--gold-deep);
}

/* Folio (número de página) */
.folio{
  position:absolute;left:0;right:0;bottom:calc(1.25em * var(--k,1));
  text-align:center;
  font-family:var(--font-display);
  font-size:calc(11px * var(--k,1));letter-spacing:.3em;color:var(--gold-deep);opacity:.7;
}

/* ---- Página de apertura de capítulo ---- */
.page--opener .opener{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  padding:calc(3em) calc(2.4em);gap:calc(.5em);
}
.opener .op-cross{width:calc(40px * var(--k,1));height:calc(48px * var(--k,1));margin-bottom:calc(1em);
  filter:drop-shadow(0 2px 3px rgba(120,90,20,.3));}
.opener .op-num{
  font-family:var(--font-display);font-weight:700;
  font-size:calc(46px * var(--k,1));line-height:1;letter-spacing:.04em;
  color:transparent;-webkit-text-stroke:calc(1.4px * var(--k,1)) var(--gold);
  margin-bottom:calc(.1em);
}
.opener .op-num--pro{
  -webkit-text-stroke:0;color:var(--gold-deep);
  font-size:calc(15px * var(--k,1));letter-spacing:.4em;text-transform:uppercase;font-weight:600;
}
.opener .op-title{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:calc(23px * var(--k,1));line-height:1.18;letter-spacing:.03em;
  max-width:14em;margin:calc(.2em) 0 calc(.6em);
}
.opener .op-rule{width:calc(64px * var(--k,1));height:2px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);margin:calc(.5em) auto;}
.opener .op-place{
  font-family:var(--font-script);font-style:italic;
  font-size:calc(15px * var(--k,1));color:var(--ink-dim);letter-spacing:.04em;
}

/* ---- Cubierta dura: portada real ---- */
.page--hard{box-shadow:0 0 0 1px rgba(0,0,0,.25), inset 0 0 0 1px rgba(255,255,255,.04);}
.page--front{background:#11150d;}
.page--front .cover-art{
  position:absolute;inset:0;
  background:url("../assets/portada-pelayo.jpeg") center/cover no-repeat;
}
.page--front .cover-art::after{
  content:"";position:absolute;inset:0;
  box-shadow:inset 0 0 70px rgba(0,0,0,.45);
  border:1px solid rgba(201,154,63,.25);
}

/* ---- Cubierta trasera / CTA ---- */
.page--end{
  background:
    radial-gradient(60% 45% at 50% 18%, color-mix(in oklab,var(--moss) 55%, transparent), transparent 60%),
    radial-gradient(120% 90% at 50% 100%, color-mix(in oklab,var(--stone-blue) 70%, var(--stone-blue-deep)), var(--stone-blue-deep));
  color:var(--bone);
}
.page--end .end{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  padding:calc(2.6em);gap:calc(.7em);
}
.page--end .end-cross{width:calc(46px * var(--k,1));height:calc(55px * var(--k,1));margin-bottom:calc(.4em);}
.page--end .end h3{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:calc(20px * var(--k,1));letter-spacing:.05em;line-height:1.2;color:#fff;
}
.page--end .end p{
  font-family:var(--font-script);font-style:italic;
  font-size:calc(15px * var(--k,1));color:var(--bone);max-width:20em;margin:calc(.3em) 0 calc(1.2em);
}
.page--end .end .btn{font-size:calc(12px * var(--k,1));padding:1em 1.7em;}

/* ============================================================
   Controles
   ============================================================ */
.reader__controls{
  display:flex;align-items:center;justify-content:center;gap:1.2rem;
  margin-top:clamp(22px,3.5vw,40px);
}
.flip-btn{
  width:52px;height:52px;border-radius:50%;cursor:pointer;
  display:grid;place-items:center;
  border:1px solid color-mix(in oklab,var(--gold) 45%,transparent);
  background:color-mix(in oklab,var(--gold) 7%,var(--paper));
  color:var(--gold-deep);transition:transform .2s,background .25s,box-shadow .25s,opacity .25s;
}
.flip-btn:hover{transform:translateY(-2px);background:color-mix(in oklab,var(--gold) 16%,var(--paper));
  box-shadow:0 8px 22px -12px rgba(120,90,20,.6);}
.flip-btn:disabled{opacity:.3;cursor:default;transform:none;box-shadow:none;}
.flip-btn svg{width:22px;height:22px;}
.flip-counter{
  font-family:var(--font-display);letter-spacing:.16em;text-transform:uppercase;
  font-size:.82rem;color:var(--ink-dim);min-width:96px;text-align:center;
}
.flip-counter b{color:var(--gold-deep);}

.reader__hint{
  margin-top:1.1rem;font-family:var(--font-grotesk,sans-serif);
  font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-dim);opacity:.7;
}

/* Fallback si la librería no carga */
.flip-fallback{display:none;max-width:640px;margin:2rem auto;padding:2rem;
  border:1px solid var(--line);border-radius:4px;background:var(--card);text-align:center;}
.no-flip .reader__stage,.no-flip .reader__controls,.no-flip .reader__hint{display:none;}
.no-flip .flip-fallback{display:block;}

/* Host de medición (oculto) */
.measure-host{position:fixed;left:-10000px;top:0;visibility:hidden;pointer-events:none;}
.measure-host .page{width:470px;height:652px;}

@media (max-width:520px){
  .flip-btn{width:46px;height:46px;}
  .reader__head h1{letter-spacing:.03em;}
}