/* Rabari PDF Flip Reader — Designed & Developed by Diar.Kurd/ K.T */
.rb-pdf-reader-section{
  margin-top:54px;padding:24px;border:1px solid var(--rb-border,#d7dce3);
  border-radius:28px;background:var(--rb-surface,#fff);box-shadow:var(--rb-soft,0 8px 28px rgba(9,35,58,.08));
  color:var(--rb-text,#1b2530)
}
.rb-pdf-reader-section[hidden]{display:none!important}
.rb-reader-section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:18px}
.rb-reader-section-head h2{margin:2px 0 0;font-size:clamp(1.45rem,3vw,2.35rem);line-height:1.35}
.rb-reader-eyebrow{display:block;color:var(--rb-primary,#1e5aa8);font-size:.76rem;font-weight:900}
.rb-reader-close{width:42px;height:42px;border:1px solid var(--rb-border,#d7dce3);border-radius:13px;background:var(--rb-surface-2,#eef3f8);color:var(--rb-text,#1b2530);font-size:1.4rem;cursor:pointer}
.rb-reader-shell{position:relative;overflow:hidden;border:1px solid #27445e;border-radius:22px;background:#071827;color:#eef6ff;box-shadow:0 18px 50px rgba(4,15,25,.22)}
.rb-reader-toolbar{min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:9px;padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.12);background:#0b1f33}
.rb-reader-toolbar-group{display:flex;align-items:center;gap:5px}
.rb-reader-toolbar button,.rb-reader-toolbar a{
  width:38px;height:38px;border:1px solid rgba(255,255,255,.14);border-radius:10px;background:#102d47;color:#edf7ff;
  display:grid;place-items:center;text-decoration:none;font-size:.9rem;font-weight:900;cursor:pointer
}
.rb-reader-toolbar button:hover,.rb-reader-toolbar a:hover,.rb-reader-toolbar button.is-active{background:#1e5aa8;border-color:#4da3ff}
.rb-reader-page-field{height:38px;display:flex;align-items:center;gap:6px;padding:0 8px;border:1px solid rgba(255,255,255,.14);border-radius:10px;background:#081a2a}
.rb-reader-page-field input{width:54px;border:0;outline:0;background:transparent;color:#fff;text-align:center;font-weight:900}
.rb-reader-page-field b{font-size:.72rem;color:#b9cbe0;white-space:nowrap}
.rb-reader-zoom{min-width:50px;text-align:center;font-size:.72rem;font-weight:900;color:#c6d8ea}
.rb-reader-searchbar{display:grid;grid-template-columns:minmax(160px,1fr) auto auto auto auto;gap:7px;align-items:center;padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.1);background:#0e2941}
.rb-reader-searchbar[hidden]{display:none}
.rb-reader-searchbar input{width:100%;padding:9px 11px;border:1px solid #31516c;border-radius:9px;background:#081a2a;color:#fff;outline:none}
.rb-reader-searchbar button{padding:8px 10px;border:1px solid #31516c;border-radius:9px;background:#163a58;color:#fff;cursor:pointer}
.rb-reader-searchbar span{min-width:70px;color:#b8cade;font-size:.72rem;text-align:center}
.rb-reader-body{position:relative;display:flex;height:min(78vh,900px);min-height:560px}
.rb-reader-sidebar{width:0;flex:0 0 0;overflow:hidden;border-left:1px solid rgba(255,255,255,.1);background:#0a1c2b;transition:width .22s,flex-basis .22s}
.rb-reader-sidebar.is-open{width:260px;flex-basis:260px}
.rb-reader-sidebar-tabs{height:48px;display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:6px;border-bottom:1px solid rgba(255,255,255,.1)}
.rb-reader-sidebar-tabs button{border:0;border-radius:8px;background:#102d47;color:#b9cbe0;font-size:.68rem;font-weight:900;cursor:pointer}
.rb-reader-sidebar-tabs button.is-active{background:#1e5aa8;color:#fff}
.rb-reader-sidebar-panel{display:none;height:calc(100% - 48px);overflow:auto;padding:10px}
.rb-reader-sidebar-panel.is-active{display:block}
.rb-reader-thumbnails{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.rb-reader-thumb{position:relative;min-height:120px;padding:7px;border:1px solid rgba(255,255,255,.12);border-radius:10px;background:#10283d;color:#fff;cursor:pointer;overflow:hidden}
.rb-reader-thumb canvas{max-width:100%;height:auto;background:#fff;box-shadow:0 5px 16px rgba(0,0,0,.25)}
.rb-reader-thumb span{position:absolute;left:5px;bottom:5px;min-width:25px;padding:2px 5px;border-radius:6px;background:rgba(5,18,30,.82);font-size:.62rem}
.rb-reader-thumb.is-active{border-color:#4da3ff;box-shadow:0 0 0 2px rgba(77,163,255,.22)}
.rb-reader-outline{font-size:.72rem;color:#c5d5e4}
.rb-reader-outline-list{list-style:none;margin:0;padding:0}
.rb-reader-outline-list ul{list-style:none;margin:0;padding:0}
.rb-reader-outline-list button{width:100%;border:0;border-bottom:1px solid rgba(255,255,255,.08);background:transparent;color:#dce9f4;text-align:right;padding-block:9px;cursor:pointer}
.rb-reader-outline-list button:hover{color:#83bff0;background:rgba(77,163,255,.08)}
.rb-reader-stage{position:relative;flex:1;min-width:0;overflow:auto;outline:none;background:
  radial-gradient(circle at 50% 25%,rgba(77,163,255,.12),transparent 34%),
  linear-gradient(145deg,#06131f,#0b2032)}
.rb-reader-loading{position:absolute;z-index:20;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:rgba(6,19,31,.94)}
.rb-reader-loading[hidden]{display:none}
.rb-reader-spinner{width:42px;height:42px;border:4px solid rgba(255,255,255,.16);border-top-color:#4da3ff;border-radius:50%;animation:rbReaderSpin .8s linear infinite}
.rb-reader-load-progress{width:min(320px,70%);height:5px;border-radius:99px;background:rgba(255,255,255,.13);overflow:hidden}
.rb-reader-load-progress span{display:block;width:0;height:100%;background:#4da3ff;transition:width .15s}
@keyframes rbReaderSpin{to{transform:rotate(360deg)}}
.rb-reader-spread{min-height:100%;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;align-items:center;justify-items:center;padding:26px;direction:rtl;perspective:1700px}
.rb-reader-spread[hidden]{display:none}
.rb-reader-spread.is-single{grid-template-columns:minmax(0,1fr)}
.rb-reader-page{position:relative;display:grid;place-items:center;min-width:0;max-width:100%;transform-style:preserve-3d;transform-origin:center;transition:transform .3s ease,opacity .3s ease}
.rb-reader-page canvas{display:block;max-width:100%;height:auto;background:#fff;box-shadow:0 16px 46px rgba(0,0,0,.42)}
.rb-reader-page>span{position:absolute;left:8px;bottom:8px;padding:3px 7px;border-radius:7px;background:rgba(4,15,25,.78);color:#fff;font-size:.66rem}
.rb-reader-spread.is-turning-next .rb-reader-page-left{transform:rotateY(-9deg) translateX(-7px);opacity:.82}
.rb-reader-spread.is-turning-previous .rb-reader-page-right{transform:rotateY(9deg) translateX(7px);opacity:.82}
.rb-reader-scroll{display:grid;gap:20px;padding:22px;max-width:1050px;margin:auto}
.rb-reader-scroll[hidden]{display:none}
.rb-reader-scroll-page{position:relative;min-height:560px;display:grid;place-items:center}
.rb-reader-scroll-page canvas{display:block;max-width:100%;height:auto;background:#fff;box-shadow:0 14px 40px rgba(0,0,0,.38)}
.rb-reader-scroll-page>span{position:absolute;left:12px;bottom:10px;padding:3px 8px;border-radius:7px;background:rgba(4,15,25,.82);font-size:.67rem}
.rb-reader-watermark{position:absolute;z-index:12;inset:0;pointer-events:none;display:grid;place-items:center;color:rgba(52,125,183,.13);font-size:clamp(3rem,10vw,9rem);font-weight:900;transform:rotate(-25deg);user-select:none}
.rb-reader-fallback{height:100%;display:flex;flex-direction:column;gap:10px;padding:18px}
.rb-reader-fallback[hidden]{display:none}
.rb-reader-fallback p{margin:0;color:#c5d5e4;font-size:.78rem}
.rb-reader-fallback iframe{flex:1;width:100%;min-height:520px;border:0;border-radius:12px;background:#fff}
.rb-reader-statusbar{min-height:36px;display:flex;justify-content:space-between;gap:12px;align-items:center;padding:6px 12px;border-top:1px solid rgba(255,255,255,.1);background:#081a2a;color:#aebfd0;font-size:.66rem}
.rb-reader-statusbar b{color:#83bff0}
:fullscreen .rb-reader-body{height:calc(100vh - 94px)}
:fullscreen .rb-reader-shell{height:100vh;border:0;border-radius:0}
@media(max-width:980px){
  .rb-reader-toolbar{flex-wrap:wrap;justify-content:center}
  .rb-reader-body{height:74vh;min-height:520px}
  .rb-reader-sidebar.is-open{position:absolute;z-index:30;right:0;top:0;bottom:0;width:min(310px,86vw);box-shadow:-15px 0 40px rgba(0,0,0,.42)}
  .rb-reader-spread{gap:9px;padding:16px}
}
@media(max-width:680px){
  .rb-pdf-reader-section{padding:12px;border-radius:20px}
  .rb-reader-section-head{align-items:flex-start}
  .rb-reader-shell{border-radius:15px}
  .rb-reader-toolbar{gap:5px;padding:6px}
  .rb-reader-toolbar-group{gap:3px}
  .rb-reader-toolbar button,.rb-reader-toolbar a{width:34px;height:34px;border-radius:8px;font-size:.78rem}
  .rb-reader-page-field{height:34px;padding-inline:6px}
  .rb-reader-page-field input{width:42px}
  .rb-reader-searchbar{grid-template-columns:1fr auto auto}
  .rb-reader-searchbar span{grid-column:1/-1}
  .rb-reader-searchbar button[data-rb-action="search-close"]{position:absolute;left:9px}
  .rb-reader-body{height:70vh;min-height:480px}
  .rb-reader-spread{grid-template-columns:1fr;padding:10px}
  .rb-reader-spread .rb-reader-page-left{display:none}
  .rb-reader-statusbar span:last-child{display:none}
}
@media(prefers-reduced-motion:reduce){
  .rb-reader-spinner{animation:none}
  .rb-reader-page,.rb-reader-sidebar,.rb-reader-load-progress span{transition:none!important}
}


/* Stage 22: 3D Flipbook emphasis */
.rb-pdf-reader-section{
  background:
    radial-gradient(circle at 100% 0,rgba(131,191,240,.12),transparent 24%),
    linear-gradient(180deg,#ffffff,#f8fbfd)!important;
}
.rb-reader-section-head h2:after{
  content:"  ·  PDF Flipbook, 3D";
  color:var(--rb-primary-2,#1e5aa8);
  font-size:.56em;
  font-weight:700;
}
.rb-reader-shell{
  border-radius:30px!important;
  overflow:hidden;
  background:
    radial-gradient(circle at 50% 12%,rgba(77,163,255,.11),transparent 26%),
    linear-gradient(145deg,#06131f,#0b2032)!important;
}
.rb-reader-stage{
  position:relative;
  background:
    radial-gradient(circle at 50% 18%,rgba(77,163,255,.14),transparent 34%),
    linear-gradient(145deg,#06131f,#0b2032)!important;
}
.rb-reader-stage:before{
  content:"";
  position:absolute;
  inset:26px;
  border-radius:26px;
  border:1px solid rgba(255,255,255,.06);
  pointer-events:none;
}
.rb-reader-page{
  filter:drop-shadow(0 24px 42px rgba(0,0,0,.30));
}
.rb-reader-page canvas{
  border-radius:5px;
  box-shadow:
    0 18px 48px rgba(0,0,0,.42),
    0 0 0 1px rgba(17,28,38,.22);
  transform:perspective(1800px) rotateY(0deg);
  transition:transform .3s ease, box-shadow .3s ease;
}
.rb-reader-page-left canvas{
  transform-origin:right center;
  box-shadow:
    -18px 20px 46px rgba(0,0,0,.38),
    0 0 0 1px rgba(17,28,38,.22);
}
.rb-reader-page-right canvas{
  transform-origin:left center;
  box-shadow:
    18px 20px 46px rgba(0,0,0,.38),
    0 0 0 1px rgba(17,28,38,.22);
}
.rb-reader-spread:not(.is-single) .rb-reader-page-left canvas{
  transform:perspective(1800px) rotateY(7deg);
}
.rb-reader-spread:not(.is-single) .rb-reader-page-right canvas{
  transform:perspective(1800px) rotateY(-7deg);
}
.rb-reader-spread.is-turning-next .rb-reader-page-left canvas{
  transform:perspective(1800px) rotateY(18deg) translateX(-10px);
}
.rb-reader-spread.is-turning-previous .rb-reader-page-right canvas{
  transform:perspective(1800px) rotateY(-18deg) translateX(10px);
}
.rb-reader-page:after{
  content:"";
  position:absolute;
  top:8%;
  bottom:8%;
  width:18px;
  pointer-events:none;
  opacity:.7;
}
.rb-reader-page-left:after{
  right:-8px;
  background:linear-gradient(90deg,rgba(0,0,0,.12),transparent);
}
.rb-reader-page-right:after{
  left:-8px;
  background:linear-gradient(270deg,rgba(0,0,0,.12),transparent);
}