.masthead{display:flex;align-items:center;gap:24px;padding:20px max(24px,5vw);background:var(--white);border-bottom:1px solid var(--line);flex-wrap:wrap}.edition{font-size:20px;border-left:1px solid var(--line);padding-left:24px}.edition span{display:block;font-size:12px;color:var(--muted)}.viewer-actions{display:flex;align-items:center;gap:16px;margin-left:auto}.masthead .theme-toggle{margin-left:0}.masthead form{margin:0}.toolbar{display:flex;gap:8px;align-items:center;justify-content:center;flex-wrap:wrap;padding:12px 14px;background:var(--white);position:sticky;top:0;z-index:5;border-bottom:1px solid var(--line)}.toolbar button,.index-link{border:1px solid var(--secondary-border);border-radius:7px;background:var(--secondary);color:var(--ink);min-height:44px;padding:8px 14px;font:inherit;text-decoration:none}.toolbar label{font-size:14px}.toolbar input{width:60px;min-height:44px;border:1px solid var(--line);border-radius:6px;text-align:center;color:var(--ink);background:var(--paper)}.divider{height:24px;width:1px;background:var(--line);margin:0 7px}.index-link{font-size:14px;margin-left:12px;font-weight:650}#status{text-align:center;font-size:14px;min-height:22px;margin:12px 16px;color:var(--ink)}#status.error{font-weight:700;border:1px solid var(--orange);padding:12px;border-radius:8px;background:var(--white)}#reading{overflow:auto;padding:0 16px 28px;min-height:60vh;overscroll-behavior-x:contain}#sheet{position:relative;margin:auto;background:white;box-shadow:var(--shadow);color-scheme:light}canvas{display:block}footer{text-align:center;padding:20px;font-size:13px;color:var(--muted)}.notice{text-align:center;padding:20px}#download-result:not([hidden]){display:block;width:min(92%,700px);height:90px;margin:12px auto;border:1px solid var(--line);background:var(--white)}.textLayer{z-index:2}@media(max-width:600px){.masthead{gap:14px;padding:16px}.edition{margin-left:auto;font-size:16px;padding-left:14px}.masthead .theme-toggle{margin-left:0}.masthead form{flex:1}.primary{width:100%;font-size:14px;padding:10px}.toolbar{gap:6px;padding:8px}.toolbar button{padding:7px 11px}.index-link{margin-left:0}.divider{margin:0 2px}#reading{padding:0 8px 20px}#status{margin:10px}.toolbar label{font-size:0}.toolbar input{font-size:14px}}

@media(max-width:600px){.viewer-actions{width:100%;margin-left:0;gap:12px}.viewer-actions form{flex:1;min-width:0}.viewer-actions .theme-toggle{flex-shrink:0}}

/* 1.6: lectura continua; las páginas alejadas liberan su memoria. */
#reading{overflow-x:auto;overflow-y:visible}.sheet{position:relative;margin:0 auto 20px;background:white;box-shadow:var(--shadow);color-scheme:light;overflow:hidden}.page-placeholder{position:absolute;top:20px;left:20px;color:#586b75;font-size:17px}.viewer-actions{flex-wrap:wrap}.viewer-actions .index-link{margin-left:0;font-size:16px;display:inline-flex;align-items:center;justify-content:center}.edition span,#status,footer{font-size:16px}.toolbar button{font-size:17px}.toolbar{position:static}
@media(max-width:600px){.viewer-actions{gap:8px}.viewer-actions form{flex:1 1 100%}.viewer-actions .index-link,.viewer-actions .theme-toggle{flex:1;min-height:46px}.sheet{margin-bottom:12px}}

/* Cabecera y zoom siempre disponibles; el PDF conserva su desplazamiento continuo. */
.admin-view-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px 20px;padding:8px max(12px,5vw);background:var(--pale);border-bottom:1px solid var(--line);font-size:16px}
.admin-view-bar a{font-weight:700}
html{scroll-padding-top:calc(var(--viewer-chrome-height,160px) + 12px)}
.viewer-chrome{position:sticky;top:0;z-index:10;background:var(--white)}
.viewer-chrome .toolbar{position:static}
@media(max-width:600px){
  .viewer-chrome .masthead{gap:8px;padding:8px 12px}
  .viewer-chrome .brand{font-size:16px;gap:8px}
  .viewer-chrome .brand-symbol{width:38px;height:38px}
  .viewer-chrome .edition{font-size:16px;padding-left:10px}
  .viewer-chrome .edition span{font-size:14px}
  .viewer-chrome .viewer-actions{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:6px;width:100%;margin:0}
  .viewer-chrome .viewer-actions>*{min-width:0}
  .viewer-chrome .viewer-actions .primary,
  .viewer-chrome .viewer-actions .index-link,
  .viewer-chrome .viewer-actions .theme-toggle{width:100%;height:100%;min-height:44px;padding:6px;font-size:14px;line-height:1.35;text-align:center}
  .viewer-chrome .viewer-actions .theme-toggle{gap:4px;white-space:normal}
  .viewer-chrome .toolbar{padding:6px;gap:6px}
  .viewer-chrome .toolbar button{min-height:44px;padding:6px 12px}
}


/* Enlaces reales del PDF. La capa vacía permite seleccionar el resto del texto. */
.sheet .pdf-link-layer{position:absolute;inset:0;z-index:3;pointer-events:none}
.sheet .pdf-link-layer .pdf-external-link{position:absolute;display:block;box-sizing:border-box;margin:0;padding:0;border:0;min-width:0;min-height:0;background:transparent;pointer-events:auto;cursor:pointer;color:transparent;text-decoration:none;touch-action:manipulation}
.sheet .pdf-link-layer .pdf-external-link:hover{background:rgba(0,105,160,.12);outline:1px solid rgba(0,105,160,.45)}
.sheet .pdf-link-layer .pdf-external-link:focus-visible{outline:3px solid #0069a0;outline-offset:-2px;background:rgba(0,105,160,.18)}


/* 1.0.2: solo el visor estrecho (móvil). No modifica el tema guardado del Índice. */
@media(max-width:600px){
  :root,:root[data-theme]{
    color-scheme:dark;
    -webkit-text-size-adjust:100%;text-size-adjust:100%;
    --paper:#101e27;--white:#1b2e39;--ink:#e3eef2;--muted:#b2c7d1;
    --blue:#83d9ee;--pale:#203b47;--line:#405b69;--shadow:0 10px 32px #0003;
    --action:#147992;--action-border:#72c5d6;--secondary:#315361;
    --secondary-border:#759ba8;--views:#83d9ee;--downloads:#147992;
  }
  .viewer-chrome .theme-toggle,.viewer-chrome .toolbar{display:none!important}
  .viewer-chrome .masthead{
    display:grid;grid-template-columns:minmax(0,1fr) auto;
    align-items:center;gap:12px 10px;padding:12px;
  }
  .viewer-chrome .brand{min-width:0;flex-shrink:1;font-size:16px;gap:8px}
  .viewer-chrome .brand-symbol{width:38px;height:38px;flex-shrink:0}
  .viewer-chrome .brand-sub{font-size:10px;letter-spacing:.13em}
  .viewer-chrome .edition{margin:0;font-size:16px;padding-left:10px;white-space:nowrap}
  .viewer-chrome .edition span{font-size:14px}
  .viewer-chrome .viewer-actions{
    grid-column:1/-1;display:grid;grid-template-columns:1.2fr 1fr;
    align-items:stretch;gap:8px;width:100%;margin:0;
  }
  .viewer-chrome .viewer-actions form{display:flex;margin:0;min-width:0}
  .viewer-chrome .viewer-actions .primary,
  .viewer-chrome .viewer-actions .index-link{
    display:flex;align-items:center;justify-content:center;
    width:100%;height:100%;min-height:48px;margin:0;padding:10px 8px;
    font-size:16px;line-height:1.35;text-align:center;white-space:normal;
  }
  #status{margin:10px 12px;font-size:16px;line-height:1.45}
}