/* Visor de documentos · Orthic
 * Panel inline: índice a la izquierda, lector a la derecha.
 * Nada se abre en otra ventana. Pantalla completa opcional.
 */

.docs{
  margin-top:var(--s5);
  display:grid;
  grid-template-columns:minmax(15rem, 22rem) minmax(0, 1fr);
  gap:var(--s4);
  align-items:start;
}

/* ═══════════ índice ═══════════ */
.docs__list{
  display:grid; gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:3px; overflow:hidden;
}
.doccard{
  position:relative; text-align:left; cursor:pointer;
  background:var(--bg); border:0;
  padding:var(--s3) var(--s3) calc(var(--s3) - 0.2rem) calc(var(--s3) + 0.35rem);
  display:grid; gap:0.25rem;
  font:inherit; color:inherit;
  transition:background-color 0.3s var(--ease);
}
.doccard::before{
  content:""; position:absolute; left:0; top:0; bottom:0; width:2px;
  background:#C9A85C; transform:scaleY(0); transform-origin:top;
  transition:transform 0.35s var(--ease);
}
.doccard:hover{ background:var(--bg-2); }
.doccard[aria-current="true"]{ background:var(--bg-2); }
.doccard[aria-current="true"]::before{ transform:scaleY(1); }
.doccard:focus-visible{ outline:1px solid #C9A85C; outline-offset:-2px; }

.doccard b{
  font-size:var(--t-base); font-weight:400; color:var(--text);
  line-height:1.3;
}
.doccard[aria-current="true"] b{ color:#fff; }
.doccard p{
  font-size:var(--t-xs); color:var(--grey-2); line-height:1.5;
  margin:0;
}
.doccard__meta{
  display:flex; gap:0.5rem; align-items:center;
  font-size:0.62rem; letter-spacing:0.14em; text-transform:uppercase;
  color:var(--grey-2); margin-top:0.15rem;
}
.doccard__meta i{ font-style:normal; color:#8A8A87; }
.doccard__meta span::before{ content:"·"; margin-right:0.5rem; }
/* marca de lectura pendiente */
.doccard__mark{
  font-size:0.62rem; letter-spacing:0.1em; text-transform:uppercase;
  color:#C9A85C;
}
.docs__nota{ margin-top:var(--s3); font-size:var(--t-xs); color:var(--grey-2); }

/* ═══════════ lector ═══════════ */
.dv{
  position:sticky; top:calc(var(--s5) + 1rem);
  background:var(--bg-2); border:1px solid var(--line);
  border-radius:3px; overflow:hidden;
  display:grid; grid-template-rows:auto auto 1fr auto;
  height:min(40rem, 78vh);
}
.dv:fullscreen{
  height:100%; width:100%; border-radius:0; border:0;
  position:static; background:var(--bg);
}

.dv__bar{
  display:flex; align-items:center; gap:var(--s3);
  padding:0.7rem var(--s3);
  border-bottom:1px solid var(--line);
}
.dv__title{
  font-size:var(--t-sm); color:var(--text); font-weight:400;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.dv__tools{ margin-left:auto; display:flex; align-items:center; gap:0.3rem; }
.dv__tools button, .dv__dl{
  background:none; border:1px solid var(--line); border-radius:3px;
  color:var(--grey-1); cursor:pointer;
  min-width:1.9rem; height:1.9rem; padding:0 0.5rem;
  font-size:var(--t-sm); line-height:1;
  display:grid; place-items:center;
  transition:border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.dv__dl{ font-size:0.62rem; letter-spacing:0.1em; text-transform:uppercase; }
.dv__tools button:hover, .dv__dl:hover{ border-color:#C9A85C; color:var(--text); }
.dv__tools svg{ width:13px; height:13px; fill:none; stroke:currentColor; stroke-width:1.5; }

/* aviso de lectura reanudada */
.dv__resume{
  display:flex; align-items:center; gap:var(--s2); flex-wrap:wrap;
  padding:0.5rem var(--s3);
  background:rgba(201,168,92,0.09);
  border-bottom:1px solid rgba(201,168,92,0.28);
  font-size:var(--t-xs);
}
.dv__resume[hidden]{ display:none; }
.dv__resume b{ color:#C9A85C; font-weight:400; }
.dv__resume button{
  background:none; border:0; cursor:pointer;
  color:var(--grey-1); text-decoration:underline;
  text-underline-offset:3px; font-size:var(--t-xs);
}
.dv__resume button:hover{ color:var(--text); }

.dv__stage{
  /* nunca desborda a lo ancho: el ancho del lienzo se calcula al espacio real */
  overflow-y:auto; overflow-x:hidden;
  padding:var(--s3);
  display:grid; place-items:start center;
  background:
    radial-gradient(120% 80% at 50% 0%, #121214 0%, #0A0A0B 70%);
  overscroll-behavior:contain;
  scroll-behavior:smooth;

  /* barra vertical discreta, del mismo material que el resto */
  scrollbar-width:thin;
  scrollbar-color:rgba(201,168,92,0.45) transparent;
}
.dv__stage::-webkit-scrollbar{ width:10px; }
.dv__stage::-webkit-scrollbar-track{
  background:transparent;
  border-left:1px solid var(--line);
}
.dv__stage::-webkit-scrollbar-thumb{
  background:rgba(232,232,230,0.16);
  border:3px solid transparent;
  background-clip:content-box;
  border-radius:99px;
}
.dv__stage::-webkit-scrollbar-thumb:hover{
  background:rgba(201,168,92,0.55);
  background-clip:content-box;
}
/* el atributo hidden debe ganarle a display:block, o al cambiar de
   documento se queda viéndose la última página del anterior */
.dv__stage canvas[hidden]{ display:none; }
.dv__stage canvas{
  display:block;
  max-width:100%;
  border:1px solid rgba(232,232,230,0.1);
  box-shadow:0 18px 50px rgba(0,0,0,0.6), 0 2px 8px rgba(0,0,0,0.4);
  background:#fff;
}
/* solo si el lector amplía a propósito aparece el desplazamiento lateral */
.dv__stage[data-zoom="in"]{ overflow-x:auto; }
.dv__stage[data-zoom="in"] canvas{ max-width:none; }
.dv__stage::-webkit-scrollbar:horizontal{ height:10px; }
.dv__load{
  color:var(--grey-2); font-size:var(--t-sm);
  padding:var(--s6) var(--s3); text-align:center; max-width:34ch;
  align-self:center; line-height:1.6;
}
.dv__load[hidden]{ display:none; }
.dv__load a{ color:#C9A85C; text-decoration:underline; text-underline-offset:3px; }

.dv__foot{
  position:relative;
  display:flex; align-items:center; justify-content:center; gap:var(--s3);
  padding:0.6rem var(--s3);
  border-top:1px solid var(--line);
}
.dv__foot button{
  background:none; border:1px solid var(--line); border-radius:999px;
  width:2.1rem; height:2.1rem; cursor:pointer; color:var(--grey-1);
  transition:border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.dv__foot button:hover{ border-color:#C9A85C; color:var(--text); }
.dv__foot button:disabled{ opacity:0.3; cursor:default; }
.dv__num{ font-size:var(--t-sm); color:var(--grey-1); font-variant-numeric:tabular-nums; }
.dv__num b{ color:var(--text); font-weight:400; }

/* progreso de lectura */
.dv__bar-wrap{
  position:absolute; left:0; right:0; top:0; height:2px;
  background:var(--line);
}
.dv__bar-wrap i{
  display:block; height:100%; background:#C9A85C;
  transform-origin:left; transform:scaleX(0);
  transition:transform 0.3s var(--ease);
}

@media (max-width:60rem){
  .docs{ grid-template-columns:1fr; }
  .dv{ position:static; height:min(34rem, 72vh); }
  .docs__list{ grid-template-columns:1fr; }
}
@media (max-width:48rem){
  .dv__stage{ padding:var(--s2); }
  .dv__dl{ display:none; }
}
@media (prefers-reduced-motion:reduce){
  .doccard::before, .dv__bar-wrap i{ transition:none; }
}