/* Reader chrome. Book pages use the book's own Bloom CSS, loaded per book. */
html,body.rd-app,html body.rd-app{margin:0;height:100%;background:#1f2937!important;color:#f9fafb;font:16px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
html{cursor:default!important}
.rd-view{position:fixed;inset:0;display:flex;flex-direction:column}
.rd-view[hidden]{display:none}
.rd-bar{display:flex;align-items:center;gap:10px;padding:8px 64px 8px 14px;background:#111827;flex-wrap:wrap;min-height:44px;box-sizing:border-box}
.rd-bar h1{font-size:20px;margin:0}
.rd-sub{opacity:.6}
.rd-net{margin-left:auto;font-size:13px;opacity:.7}
.rd-shelf{display:flex;flex-wrap:wrap;gap:22px;padding:24px;overflow:auto}
.rd-card{width:260px;background:#374151;border-radius:14px;overflow:hidden;cursor:pointer;box-shadow:0 6px 20px rgba(0,0,0,.35);transition:transform .15s}
.rd-card:hover{transform:translateY(-3px)}
.rd-card img{width:100%;aspect-ratio:16/9;object-fit:contain;display:block;background:#e7e5e4}
.rd-card .t{padding:10px 12px 2px;font-weight:600}
.rd-card .m{padding:0 12px 12px;font-size:13px;display:flex;flex-wrap:wrap;gap:4px 8px;align-items:center}
.rd-card .m span{opacity:.75}
.rd-card .m button{margin-left:auto}
.rd-foot{padding:0 24px;opacity:.5;font-size:13px}
.rd-btn{background:#374151;color:#f9fafb;border:0;border-radius:8px;padding:7px 12px;font:inherit;font-size:14px;cursor:pointer}
.rd-btn:hover{background:#4b5563}
.rd-play.on{background:#f59e0b;color:#111}
.rd-title{font-weight:600}
.rd-spacer{flex:1}
.rd-ctl{font-size:13px;display:flex;gap:5px;align-items:center;opacity:.9}
.rd-ctl select{font:inherit;font-size:13px;border-radius:6px;padding:3px}
.rd-stage{position:relative;flex:1;display:flex;align-items:center;justify-content:center;overflow:hidden;touch-action:pan-y}
.rd-viewport{position:relative;overflow:hidden;border-radius:14px;box-shadow:0 10px 30px rgba(0,0,0,.45)}
.rd-scaler{transform-origin:0 0;position:absolute;left:0;top:0}
.rd-track{display:flex;transition:transform .35s ease}
.rd-slot{flex:none;overflow:hidden;position:relative;background:#fff;color:#000;font:initial;line-height:normal;text-align:initial}
.rd-slot .bloom-page{margin:0!important}
.rd-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:46px;border-radius:50%;border:0;background:rgba(255,255,255,.15);color:#fff;font-size:34px;line-height:40px;cursor:pointer}
.rd-nav:hover{background:rgba(255,255,255,.3)}
.rd-prevbtn{left:10px}.rd-nextbtn{right:10px}
.rd-nav[disabled]{opacity:.2;cursor:default}
.rd-pageno{position:absolute;bottom:6px;left:50%;transform:translateX(-50%);font-size:13px;opacity:.6}
/* narration highlight (sentence) */
.rd-slot .rd-cur,.rd-slot .rd-curbox p{background-color:rgba(254,191,0,.55)!important;border-radius:3px}
.rd-ra .rd-slot .rd-cur,.rd-ra .rd-slot .rd-curbox p{background-color:rgba(254,191,0,.18)!important}
/* Bloom editing-only chrome */
.rd-slot .bloom-ui,.rd-slot .pqbridge{display:none!important}
.rd-slot .bloom-page{cursor:default}
.rd-xray{position:fixed;z-index:2147481400;display:none;box-sizing:border-box;align-items:center;justify-content:center;background:#fff;border-radius:8px;box-shadow:0 4px 14px rgba(0,0,0,.25);border-bottom:3px solid #46bbe6;pointer-events:none;transform:translate(-50%,-50%)}

/* "flow" books (imported from web pages): pictures + text + translation layer, 16:9 like Bloom pages */
.rd-slot .rd-flow{width:1280px;height:720px;box-sizing:border-box;display:flex;gap:36px;padding:40px 48px;background:#fffdf7;color:#111;font-family:"Century Gothic","Andika","Verdana",sans-serif}
.rd-flow-imgs{flex:1 1 52%;display:grid;gap:12px;align-items:center;justify-items:center;min-width:0;min-height:0}
.rd-flow-imgs.n2{grid-template-columns:1fr 1fr}.rd-flow-imgs.n3,.rd-flow-imgs.n4{grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}
.rd-flow-imgs img{max-width:100%;max-height:100%;object-fit:contain;border-radius:14px;box-shadow:0 3px 12px rgba(0,0,0,.15)}
.rd-flow-imgs:empty{display:none}
.rd-flow-text{flex:1 1 48%;display:flex;flex-direction:column;justify-content:center;gap:26px;min-width:0;overflow:hidden}
.rd-flow .bloom-editable{font-size:48px;line-height:1.4;word-spacing:.12em}
.rd-flow .bloom-editable p,.rd-flow .rd-trans p{margin:0}
.rd-flow-title .bloom-editable{font-size:80px;font-weight:700;text-align:center}
.rd-flow-title .rd-trans{text-align:center}
.rd-noimg .rd-flow-text{align-items:center;text-align:center;padding:0 60px}
.rd-trans{display:none;font-size:36px;line-height:1.5;color:#c81e1e;font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif}
html.rd-show-trans .rd-trans{display:block}
#rd-trans[aria-pressed="true"]{background:#c81e1e}
/* simple card for words the PQ store doesn't have yet */
.rd-wordcard{position:fixed;z-index:2147483000;background:#fff;color:#111;border-radius:14px;box-shadow:0 8px 28px rgba(0,0,0,.35);padding:14px 18px 12px;min-width:180px;text-align:center;transform:translate(-50%,8px)}
.rd-wordcard .w{font:600 44px/1.2 "Andika","Verdana",sans-serif}
.rd-wordcard .n{font-size:12px;opacity:.6;margin:4px 0 8px}
.rd-wordcard button{font:inherit;font-size:15px;border:0;border-radius:8px;padding:6px 12px;margin:0 3px;background:#e5e7eb;cursor:pointer}

/* slide books (PowerPoint import): picture of the slide + transparent live words on top */
.rd-slot .rd-slide{position:relative;overflow:hidden;background:#fff;color:#000}
.rd-slide-bg{position:absolute;left:0;top:0;width:100%;height:100%;user-select:none;-webkit-user-drag:none;pointer-events:none}
.rd-slide .rd-ov{position:absolute;left:0;top:0;width:100%;height:100%;font-family:"Century Gothic","URW Gothic","Questrial",sans-serif}
.rd-slide .rd-ow{position:absolute;display:block;width:auto!important;white-space:nowrap;color:transparent;transform-origin:0 0;cursor:pointer}
.rd-slide .rd-ow::selection,.rd-slide .rd-ow *::selection{background:rgba(0,120,255,.25);color:transparent}
.rd-slide .rd-trans-abs{position:absolute;background:rgba(255,255,255,.9);padding:4px 8px;border-radius:8px}
html.rd-show-trans .rd-slide .rd-trans-abs{display:block}
.rd-slide .rd-media{position:absolute;right:16px;bottom:16px;max-width:45%;z-index:2}
[hidden]{display:none!important}
.rd-card.rd-missing{opacity:.45;cursor:not-allowed}

/* ---------- full-screen reading ---------- */
.rd-fs-exit{display:none}
html.rd-fs #reader .rd-readerbar{position:absolute;left:0;right:0;top:0;z-index:30;background:rgba(17,24,39,.94);
  transition:transform .25s ease,opacity .25s ease;padding-top:max(8px,env(safe-area-inset-top))}
html.rd-fs.rd-chrome-hidden #reader .rd-readerbar{transform:translateY(-110%);opacity:0;pointer-events:none}
html.rd-fs .rd-stage{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
html.rd-fs .rd-viewport{border-radius:0;box-shadow:none}
html.rd-fs .rd-nav{background:rgba(0,0,0,.18);transition:opacity .25s}
html.rd-fs.rd-chrome-hidden .rd-nav{opacity:.25}
html.rd-fs.rd-chrome-hidden .rd-pageno{opacity:0}
html.rd-fs .rd-fs-exit{display:block;position:fixed;right:max(8px,env(safe-area-inset-right));top:max(8px,env(safe-area-inset-top));z-index:31;
  width:40px;height:40px;border-radius:50%;border:0;background:rgba(17,24,39,.55);color:#fff;font-size:18px;cursor:pointer;transition:opacity .25s}
html.rd-fs:not(.rd-chrome-hidden) .rd-fs-exit{display:none}
html.rd-fs #rd-fs{background:#2563eb}
html.rd-fs body{background:#000!important}
/* phones: compact toolbar */
@media (max-width:820px),(max-height:500px){
  .rd-readerbar{gap:6px;padding:6px 56px 6px 8px;min-height:40px}
  .rd-readerbar .rd-ctl{font-size:12px}
  .rd-readerbar .rd-btn{padding:6px 9px;font-size:13px}
  .rd-title{max-width:30vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .rd-nav{width:38px;height:38px;font-size:28px;line-height:32px}
  .rd-prevbtn{left:4px}.rd-nextbtn{right:4px}
}
/* transparent cut-out pictures: no box, a soft shadow that follows the shape */
.rd-flow-imgs img.rd-cutout{box-shadow:none;border-radius:0;filter:drop-shadow(0 3px 5px rgba(0,0,0,.16))}