/*
  Proyecto: Revista Digital Zona E Emprendedora
  Archivo: css/styles.css
  Función: define la estética, el responsive, el visor, el buscador, el modal de ayuda,
  la landing page y las mejoras de zoom.
  Criterio UX: mantener la revista tipo app, sin scroll lateral visible y con barras fijas.
*/
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;700;800;900&display=swap');

:root{
  --orange:#ff7a1a;
  --violet:#35208f;
  --violet-2:#4b2fbf;
  --dark:#06040d;
  --panel:#120a32;
  --white:#fff;
  --muted:#d9d4ef;
  --topbar-h:72px;
  --thumbs-h:112px;
}

*{box-sizing:border-box}

html,body{
  width:100%;
  height:100%;
  min-height:100%;
  margin:0;
  font-family:'Montserrat',sans-serif;
  color:var(--white);
  background:
    radial-gradient(circle at 0% 30%, rgba(255,122,26,.28), transparent 28%),
    radial-gradient(circle at 100% 20%, rgba(75,47,191,.45), transparent 34%),
    linear-gradient(135deg,#07040e 0%,#120927 55%,#020105 100%);
  overflow:hidden;
  overscroll-behavior:none;
}

html{
  height:-webkit-fill-available;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:linear-gradient(90deg,rgba(255,122,26,.55),transparent 22%,transparent 78%,rgba(75,47,191,.5));
  opacity:.18;
}

.app-shell{
  width:100vw;
  height:100dvh;
  min-height:-webkit-fill-available;
  overflow:hidden;
  display:grid;
  grid-template-rows:var(--topbar-h) minmax(0,1fr) var(--thumbs-h);
}

.topbar{
  z-index:20;
  min-height:var(--topbar-h);
  padding:10px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:rgba(5,3,14,.86);
  border-top:3px solid var(--orange);
  border-bottom:1px solid rgba(255,255,255,.1);
  box-shadow:0 8px 28px rgba(0,0,0,.35);
  backdrop-filter:blur(14px);
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}

.brand-logo{
  width:48px;
  height:48px;
  object-fit:cover;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.2);
  box-shadow:0 0 16px rgba(75,47,191,.75);
  background:#000;
}

.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.05;
}

.brand-text span{
  color:var(--orange);
  font-size:12px;
  font-weight:900;
  letter-spacing:.08em;
}

.brand-text strong{
  font-size:22px;
  font-weight:900;
}

.top-actions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:8px;
}

.page-pill{
  background:rgba(255,255,255,.08);
  color:#fff;
  font-weight:900;
  padding:12px 14px;
  border-radius:14px;
  white-space:nowrap;
}

.icon-btn,.small-icon{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:none;
  border-radius:12px;
  color:#fff;
  cursor:pointer;
  background:linear-gradient(145deg,var(--violet),var(--violet-2));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.12),0 6px 16px rgba(0,0,0,.25);
  transition:.25s ease;
}

.icon-btn:hover,.small-icon:hover{
  background:linear-gradient(145deg,var(--orange),#ff8f3f);
  transform:translateY(-1px);
}

.icon-btn svg,.small-icon svg{width:20px;height:20px}

.search-panel{
  position:fixed;
  top:calc(var(--topbar-h) + 10px);
  right:18px;
  z-index:35;
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px;
  border-radius:18px;
  background:rgba(8,5,18,.94);
  border:1px solid rgba(255,122,26,.7);
  box-shadow:0 14px 36px rgba(0,0,0,.45);
}

.hidden{display:none!important}

.search-panel input{
  width:min(320px,calc(100vw - 170px));
  height:44px;
  padding:0 14px;
  border:2px solid var(--orange);
  border-radius:12px;
  background:#07040d;
  color:#fff;
  outline:none;
  font-weight:700;
}

.orange-btn{
  border:none;
  background:linear-gradient(145deg,var(--orange),#ff8b34);
  color:#fff;
  font-weight:900;
  border-radius:14px;
  padding:12px 18px;
  cursor:pointer;
  box-shadow:0 8px 18px rgba(255,122,26,.25);
}

#searchInfo{
  color:#fff;
  font-weight:800;
  white-space:nowrap;
}

.viewer{
  position:relative;
  width:100%;
  min-height:0;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  padding:10px 48px 6px;
}

.viewer-frame{
  position:relative;
  width:100%;
  height:100%;
  border-radius:20px;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(90deg,rgba(255,122,26,.12),rgba(75,47,191,.18),rgba(0,0,0,.45));
  border:1px solid rgba(255,255,255,.08);
}

.flipbook-area{
  width:100%;
  height:100%;
  overflow:hidden!important;
  display:flex;
  align-items:center;
  justify-content:center;
  touch-action:pan-y pinch-zoom;
}

.stf__parent{overflow:hidden!important}

.side-nav{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  z-index:15;
  width:54px;
  height:54px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.25);
  background:rgba(255,193,97,.22);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  backdrop-filter:blur(8px);
  box-shadow:0 10px 24px rgba(0,0,0,.28);
  transition:.25s ease;
}

.side-nav:hover{
  background:rgba(255,122,26,.55);
  transform:translateY(-50%) scale(1.06);
}

.side-prev{left:18px}
.side-next{right:18px}
.side-nav svg{width:24px;height:24px}

.loading,.empty-state{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  gap:14px;
  padding:28px;
  z-index:10;
  background:linear-gradient(160deg,#35208f,#150b39 70%);
}

.empty-state{
  max-width:620px;
  inset:auto;
  border-radius:28px;
  border:5px solid #fff;
  box-shadow:0 0 0 10px rgba(75,47,191,.8);
}

.empty-state img{
  width:160px;
  max-width:50vw;
  background:#000;
}

.empty-state h1{
  margin:0;
  font-size:42px;
  line-height:1;
}

.empty-state p{
  margin:0;
  max-width:520px;
  color:#ede8ff;
}

.spinner{
  width:48px;height:48px;border-radius:50%;
  border:5px solid rgba(255,255,255,.25);
  border-top-color:var(--orange);
  animation:spin 1s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.thumbs-wrap{
  position:relative;
  z-index:12;
  height:var(--thumbs-h);
  background:rgba(10,5,15,.72);
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  align-items:center;
  padding:12px 54px;
  overflow:hidden;
}

.thumbs{
  width:100%;
  height:100%;
  overflow-x:auto;
  overflow-y:hidden;
  display:flex;
  align-items:center;
  gap:10px;
  scroll-behavior:smooth;
  scrollbar-width:thin;
  scrollbar-color:var(--orange) rgba(255,255,255,.18);
}

.thumb{
  flex:0 0 auto;
  height:82px;
  width:58px;
  border:2px solid transparent;
  border-radius:4px;
  overflow:hidden;
  background:#fff;
  cursor:pointer;
  opacity:.72;
  transition:.2s ease;
}

.thumb canvas{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
}

.thumb:hover,.thumb.active{
  opacity:1;
  border-color:var(--orange);
  transform:translateY(-3px);
  box-shadow:0 0 0 2px rgba(255,122,26,.35);
}

.thumb-scroll{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  z-index:14;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,193,97,.18);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  backdrop-filter:blur(7px);
}
.thumb-left{left:8px}
.thumb-right{right:8px}

.modal-backdrop{
  position:fixed;
  inset:0;
  z-index:60;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:16px;
  background:rgba(0,0,0,.62);
  backdrop-filter:blur(6px);
}

.help-card{
  position:relative;
  width:min(430px,calc(100vw - 28px));
  max-height:min(92vh,760px);
  overflow:auto;
  padding:28px 18px 18px;
  border-radius:18px;
  border:1.5px solid var(--orange);
  background:linear-gradient(160deg,#3a2398 0%,#12043a 72%,#07020e 100%);
  box-shadow:0 28px 70px rgba(0,0,0,.55);
  text-align:center;
}

.modal-close{
  position:absolute;
  top:10px;
  right:10px;
  width:34px;height:34px;border-radius:9px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.14);
  color:#fff;
  cursor:pointer;
}

.help-logo{
  width:72px;
  height:72px;
  object-fit:cover;
  background:#000;
  margin:0 auto 12px;
}

.help-card h2{
  margin:0 0 16px;
  font-size:27px;
  line-height:1.05;
  font-weight:900;
}

.help-list{
  display:flex;
  flex-direction:column;
  gap:10px;
  text-align:left;
}

.help-list p{
  margin:0;
  padding:13px 13px;
  border-left:3px solid var(--orange);
  border-radius:10px;
  background:rgba(255,255,255,.08);
  color:#f7f2ff;
  font-size:13px;
  line-height:1.45;
}

.help-list strong{color:var(--orange)}

.help-contact{
  margin-top:16px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
}

.whatsapp-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  max-width:260px;
  padding:12px 16px;
  border-radius:14px;
  text-decoration:none;
  background:linear-gradient(145deg,#25d366,#12b856);
  color:#fff;
  font-weight:900;
  box-shadow:0 10px 26px rgba(37,211,102,.2);
}

.social-icons{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
}

.social-icons a{
  width:44px;
  height:44px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
  text-decoration:none;
  transition:.25s ease;
  box-shadow:0 8px 18px rgba(0,0,0,.16);
}

.social-icons a:hover{
  transform:translateY(-2px) scale(1.04);
  border-color:rgba(255,255,255,.35);
}

.social-icons svg{
  width:23px;
  height:23px;
  fill:currentColor;
}

.social-link.whatsapp{background:linear-gradient(135deg,#25D366,#128C7E)}
.social-link.instagram{background:linear-gradient(135deg,#833ab4,#fd1d1d,#fcb045)}
.social-link.facebook{background:linear-gradient(135deg,#1877f2,#0d47a1)}
.social-link.tiktok{background:linear-gradient(135deg,#111,#2b185f)}
.social-link.tiktok svg{filter:drop-shadow(1px 0 0 #25f4ee) drop-shadow(-1px 0 0 #fe2c55)}

.understood{
  margin-top:16px;
  min-width:120px;
}

@media (max-width: 768px){
  :root{--topbar-h:58px;--thumbs-h:86px}
  .topbar{padding:6px 9px}
  .brand-text{display:none}
  .brand-logo{width:40px;height:40px;border-radius:10px}
  .page-pill{font-size:12px;padding:8px 10px;border-radius:11px}
  .icon-btn{width:38px;height:38px;border-radius:11px}
  .viewer{padding:6px 22px 4px}
  .side-nav{width:42px;height:42px}
  .side-prev{left:4px}
  .side-next{right:4px}
  .thumbs-wrap{padding:8px 40px}
  .thumb{height:62px;width:44px}
  .thumb-scroll{width:38px;height:38px}
  .search-panel{
    left:10px;
    right:10px;
    top:calc(var(--topbar-h) + 8px);
    display:grid;
    grid-template-columns:minmax(0,1fr) 38px;
    align-items:center;
    gap:8px;
    padding:10px;
    border-radius:18px;
    max-height:168px;
    background:rgba(8,5,18,.86);
    backdrop-filter:blur(12px);
  }
  .search-panel input{
    width:100%;
    height:42px;
    grid-column:1 / 2;
    font-size:14px;
  }
  .search-close{
    display:inline-flex;
    grid-column:2 / 3;
    width:38px;
    height:38px;
  }
  .search-panel .orange-btn{
    grid-column:1 / 2;
    height:38px;
    padding:8px 14px;
  }
  #prevResultBtn,#nextResultBtn{
    width:38px;
    height:38px;
  }
  #prevResultBtn{grid-column:2 / 3;grid-row:2;}
  #nextResultBtn{grid-column:2 / 3;grid-row:3;}
  #searchInfo{
    grid-column:1 / 2;
    font-size:12px;
    justify-self:center;
  }
  .empty-state h1{font-size:30px}
}

@media (max-width: 420px){
  :root{--topbar-h:56px;--thumbs-h:82px}
  .top-actions{gap:5px}
  .page-pill{display:inline-flex;font-size:11px;padding:7px 8px}
  .icon-btn{width:36px;height:36px}
  .brand-logo{width:38px;height:38px}
  .help-card{padding:24px 14px 16px}
  .help-card h2{font-size:24px}
}

.pdf-page{
  position:relative;
  overflow:hidden;
  background:#fff;
}

.pdf-page-canvas{
  display:block;
  width:100%;
  height:100%;
  object-fit:fill;
  user-select:none;
  -webkit-user-drag:none;
}

.pdf-search-layer{
  position:absolute;
  inset:0;
  z-index:25;
  pointer-events:none;
}

.pdf-search-highlight{
  position:absolute;
  display:block;
  background:rgba(255,214,77,.46);
  border:1px solid rgba(255,184,55,.58);
  border-radius:4px;
  box-shadow:0 0 10px rgba(255,184,55,.22);
  mix-blend-mode:multiply;
}

.search-close{display:none;}

.pdf-link-layer{
  position:absolute;
  inset:0;
  z-index:30;
  pointer-events:none;
}

.pdf-link-hotspot{
  position:absolute;
  display:block;
  pointer-events:auto;
  cursor:pointer;
  background:rgba(255,122,26,0);
  border-radius:3px;
}

.pdf-link-hotspot:hover,
.pdf-link-hotspot:focus-visible{
  outline:2px solid rgba(255,122,26,.85);
  background:rgba(255,122,26,.12);
}

/*
  Recuadro breve para indicar zonas clickeables del PDF.
  Usa color cyan/azul para diferenciarlo del resaltado amarillo del buscador.
  La clase se agrega desde JS por un instante al cambiar de página.
*/
.pdf-link-hotspot.link-hint{
  animation: zonaeLinkHint 1s ease-out;
}

@keyframes zonaeLinkHint{
  0%{
    outline:2px solid rgba(0,221,255,0);
    background:rgba(0,221,255,0);
    box-shadow:0 0 0 rgba(0,221,255,0);
  }
  35%{
    outline:2px solid rgba(0,221,255,.92);
    background:rgba(0,221,255,.16);
    box-shadow:0 0 14px rgba(0,221,255,.52);
  }
  100%{
    outline:2px solid rgba(0,221,255,0);
    background:rgba(0,221,255,0);
    box-shadow:0 0 0 rgba(0,221,255,0);
  }
}


/* Mejoras responsive: header y miniaturas siempre visibles */
@supports (height: 100svh){
  .app-shell{height:100svh;}
}

@media (max-width: 768px){
  body{position:fixed; inset:0; width:100%;}
  .app-shell{position:fixed; inset:0; height:100dvh;}
  .viewer-frame{border-radius:16px;}
  .flipbook-area{height:100%; max-height:100%;}
  .stf__wrapper, .stf__block{max-height:100%!important;}
  .thumbs{scrollbar-width:none;}
  .thumbs::-webkit-scrollbar{display:none;}
}

@media (max-width: 360px){
  :root{--topbar-h:52px;--thumbs-h:74px}
  .topbar{padding:5px 7px;}
  .brand-logo{width:34px;height:34px;}
  .icon-btn{width:32px;height:32px;border-radius:9px;}
  .page-pill{font-size:10px;padding:6px 7px;}
  .viewer{padding:5px 18px 3px;}
  .side-nav{width:36px;height:36px;}
  .thumbs-wrap{padding:7px 36px;}
  .thumb{height:54px;width:38px;}
  .thumb-scroll{width:34px;height:34px;}
}



/* =========================================================
   ZOOM DE REVISTA
   - Escritorio: botones +, -, 100% en la barra superior.
   - Mobile: gesto de pellizcar con dos dedos.
   - Cuando hay zoom activo, los enlaces del PDF se desactivan para evitar clics accidentales.
   ========================================================= */
.zoom-controls{
  display:flex;
  align-items:center;
  gap:6px;
}

.zoom-reset-chip{
  min-width:54px;
  height:44px;
  border:0;
  border-radius:13px;
  background:rgba(255,255,255,.08);
  color:#fff;
  font-weight:900;
  cursor:pointer;
  box-shadow:0 7px 18px rgba(0,0,0,.22);
}

.zoom-reset-chip:hover{
  background:rgba(255,122,26,.26);
}

.viewer-frame.zoom-active{
  cursor:grab;
}

.viewer-frame.zoom-dragging{
  cursor:grabbing;
}

.viewer-frame.zoom-active .pdf-link-layer{
  pointer-events:none;
}

.viewer-frame.zoom-active .pdf-link-hotspot{
  pointer-events:none;
}

.mobile-zoom-reset{
  position:absolute;
  left:50%;
  bottom:12px;
  transform:translateX(-50%);
  z-index:45;
  border:0;
  border-radius:999px;
  padding:10px 14px;
  background:linear-gradient(135deg,var(--orange),#ff9b39);
  color:#fff;
  font-weight:900;
  box-shadow:0 12px 26px rgba(0,0,0,.32);
  cursor:pointer;
}

.viewer-frame.zoom-active .flipbook-area{
  will-change:transform;
}

@media (max-width: 768px){
  /* En mobile ocultamos controles de zoom de escritorio: el gesto natural es pellizcar. */
  .zoom-controls{display:none;}
}

@media (max-width: 1180px){
  /* En pantallas medianas evitamos saturar la barra superior. */
  .zoom-reset-chip{min-width:48px;font-size:12px;}
}

/* Home / landing page */
.home-link{ text-decoration:none; }
.landing-page{
  min-height:100dvh;
  background:
    radial-gradient(circle at top left, rgba(255,125,36,.22), transparent 34%),
    radial-gradient(circle at bottom right, rgba(77,39,202,.32), transparent 36%),
    #07020f;
  color:#fff;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
.landing-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  padding:18px clamp(18px,4vw,56px);
  border-top:3px solid var(--orange,#ff7d24);
  background:rgba(5,2,14,.78);
  backdrop-filter:blur(16px);
  position:sticky;
  top:0;
  z-index:5;
}
.landing-brand{display:flex;align-items:center;gap:12px}
.landing-brand img{width:54px;height:54px;border-radius:14px;object-fit:cover;box-shadow:0 0 18px rgba(84,42,255,.7)}
.landing-brand span{display:block;color:var(--orange,#ff7d24);font-weight:900;font-size:13px;letter-spacing:.06em}
.landing-brand strong{display:block;font-size:24px;line-height:1}
.landing-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.landing-btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:#fff;font-weight:900;border-radius:16px;padding:12px 18px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08)}
.landing-btn.primary{background:linear-gradient(135deg,#ff7d24,#ff9d3d);box-shadow:0 12px 32px rgba(255,125,36,.28)}
.landing-hero{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;padding:clamp(28px,6vw,78px) clamp(18px,5vw,72px)}
.landing-copy h1{font-size:clamp(38px,6vw,76px);line-height:.95;margin:0 0 18px;font-weight:1000;letter-spacing:-.04em}
.landing-copy h1 span{color:#ff7d24}
.landing-copy p{font-size:clamp(17px,2vw,22px);line-height:1.55;color:rgba(255,255,255,.82);max-width:780px;margin:0 0 26px}
.landing-card{background:linear-gradient(160deg,rgba(62,34,147,.76),rgba(13,4,34,.9));border:1px solid rgba(255,125,36,.55);border-radius:32px;padding:26px;box-shadow:0 22px 60px rgba(0,0,0,.38)}
.landing-card img{width:100%;border-radius:24px;display:block;object-fit:cover;margin-bottom:18px}
.landing-card h2{font-size:28px;margin:0 0 10px}.landing-card p{color:rgba(255,255,255,.78);line-height:1.5;margin:0}
.landing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:0 clamp(18px,5vw,72px) 52px}
.info-box{border-radius:24px;padding:22px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}
.info-box h3{margin:0 0 8px;color:#ff8b2b;font-size:20px}.info-box p{margin:0;color:rgba(255,255,255,.78);line-height:1.45}
@media (max-width:850px){.landing-header{align-items:flex-start}.landing-brand strong{font-size:18px}.landing-hero{grid-template-columns:1fr;padding-top:28px}.landing-grid{grid-template-columns:1fr}.landing-actions{width:100%;justify-content:flex-start}.landing-btn{padding:10px 13px}.landing-card{padding:18px;border-radius:24px}}

.whatsapp-main-icon{
  width:24px;
  height:24px;
  fill:currentColor;
  flex:0 0 auto;
}

/* Ajuste mobile: permite el gesto nativo de "deslizar para refrescar" sin romper el diseño */
@media (max-width: 768px){
  html,
  body{
    height:auto;
    min-height:calc(100dvh + 1px);
    overflow-x:hidden;
    overflow-y:auto;
    overscroll-behavior-y:auto;
    -webkit-overflow-scrolling:touch;
  }

  body{
    position:relative;
    inset:auto;
    width:100%;
  }

  .app-shell{
    position:sticky;
    top:0;
    width:100vw;
    height:100dvh;
    min-height:100dvh;
    overflow:hidden;
  }

  .viewer,
  .viewer-frame,
  .flipbook-area{
    touch-action:pan-y pinch-zoom;
  }
}

/* === Mejora UX buscador mobile + estabilidad responsive === */
@media (max-width: 768px){
  .topbar.search-mode{
    display:flex;
    align-items:center;
    justify-content:stretch;
    min-height:var(--topbar-h);
    padding:6px 8px;
  }

  .topbar.search-mode .brand,
  .topbar.search-mode .top-actions{
    display:none;
  }

  .topbar.search-mode .search-panel{
    position:static;
    inset:auto;
    width:100%;
    max-height:none;
    padding:0;
    margin:0;
    border:none;
    border-radius:0;
    background:transparent;
    box-shadow:none;
    backdrop-filter:none;
    display:grid;
    grid-template-columns:36px minmax(0,1fr) 38px auto 34px 34px;
    gap:6px;
    align-items:center;
    overflow:visible;
  }

  .topbar.search-mode .search-close{
    display:inline-flex;
    width:36px;
    height:36px;
    grid-column:auto;
  }

  .topbar.search-mode .search-panel input{
    width:100%;
    min-width:0;
    height:38px;
    padding:0 10px;
    font-size:13px;
    border-radius:11px;
    grid-column:auto;
  }

  .topbar.search-mode .search-submit{
    width:38px;
    height:38px;
    padding:0;
    border-radius:11px;
    font-size:0;
    position:relative;
    grid-column:auto;
  }

  .topbar.search-mode .search-submit::before{
    content:"⌕";
    font-size:22px;
    line-height:1;
    font-weight:900;
  }

  .topbar.search-mode #searchInfo{
    font-size:11px;
    min-width:30px;
    justify-self:center;
    grid-column:auto;
  }

  .topbar.search-mode #prevResultBtn,
  .topbar.search-mode #nextResultBtn{
    width:34px;
    height:34px;
    grid-column:auto;
    grid-row:auto;
  }

  .topbar.search-mode #prevResultBtn svg,
  .topbar.search-mode #nextResultBtn svg,
  .topbar.search-mode .search-close svg{
    width:18px;
    height:18px;
  }

  /* Evita que las reglas anteriores del buscador flotante mobile tapen la revista */
  .search-panel:not(.hidden){
    z-index:35;
  }

  .viewer,
  .viewer-frame,
  .flipbook-area,
  .pdf-page{
    backface-visibility:hidden;
    -webkit-backface-visibility:hidden;
  }
}

@media (max-width: 430px){
  .topbar.search-mode .search-panel{
    grid-template-columns:34px minmax(0,1fr) 36px auto 32px 32px;
    gap:4px;
  }
  .topbar.search-mode .search-close,
  .topbar.search-mode .search-submit{
    width:34px;
    height:34px;
  }
  .topbar.search-mode #prevResultBtn,
  .topbar.search-mode #nextResultBtn{
    width:32px;
    height:32px;
  }
  .topbar.search-mode .search-panel input{
    height:36px;
    font-size:12px;
  }
}

/* =========================================================
   MODO ZOOM / LECTURA MOBILE
   - Cuando se hace zoom con dos dedos, se pausa PageFlip.
   - Esto evita que las esquinas o laterales de la hoja se levanten por error.
   - El usuario puede ampliar y arrastrar la página sin cambiar de página.
   ========================================================= */
.viewer-frame.zoom-reading-mode{
  touch-action:none;
}

.flipbook-area.flipbook-paused{
  pointer-events:none;
}

.viewer-frame.zoom-reading-mode .stf__parent,
.viewer-frame.zoom-reading-mode .stf__wrapper,
.viewer-frame.zoom-reading-mode .stf__block{
  pointer-events:none!important;
}

.viewer-frame.zoom-reading-mode .side-nav{
  pointer-events:none;
  opacity:.28;
}