/* ==========================================================================
   مكتبة نور — Booky Burrow (Islamic / Arabic edition)
   RTL, Arabic-first re-skin of the "Full Immersion" reading-library prototype.
   ========================================================================== */
:root{
  /* warm Islamic library palette */
  --accent:#e0a838; --accent-deep:#b9791b; --accent-soft:#ffeccb; --glow:#ffd98a;
  --green:#3f9d6d; --green-deep:#2e7d52; --green-soft:#d8f0e2;
  --teal:#54b4c4;
  --ink:#3a2e22; --ink-soft:#7a6a55; --ink-faint:#a99a86;
  --cream:#fff8ec; --paper:#fdf3df; --glass:rgba(255,249,238,.86);
  --line:rgba(120,90,50,.18); --gold-line:rgba(185,121,27,.35);
  --shadow:0 14px 34px rgba(60,40,18,.24), 0 3px 8px rgba(60,40,18,.16);
  --bg:#241a12;
  --font-ui:'Baloo Bhaijaan 2', system-ui, sans-serif;
  --font-read:'Tajawal', system-ui, sans-serif;
  --font-display:'Aref Ruqaa', 'Baloo Bhaijaan 2', serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;overflow:hidden;background:var(--bg);
  font-family:var(--font-ui);color:var(--ink);-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;-webkit-tap-highlight-color:transparent}
#root,.app{height:100%;width:100%}
button{font-family:inherit}

/* a faint 8-point-star arabesque motif reused as a divider / accent */
:root{
  --star8:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'><path d='M12 1l2.5 6 6.5.4-5 4.2 1.7 6.4L12 18l-5.7 3.4L8 15 3 10.8l6.5-.4z' fill='none' stroke='%23b9791b' stroke-width='1' opacity='.5'/></svg>");
}

/* ---------- 3D stage ---------- */
.stage{position:fixed;inset:0}
.stage canvas{display:block;width:100%;height:100%;cursor:grab;outline:none}
.stage canvas:active{cursor:grabbing}
.vignette{position:fixed;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 38%, transparent 52%, rgba(20,12,6,.5) 100%)}

/* ---------- loading ---------- */
.loader{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:18px;background:radial-gradient(120% 100% at 50% 30%, #2e2014, #1c130b);color:var(--cream);
  z-index:200;transition:opacity .6s ease}
.loader.hide{opacity:0;pointer-events:none}
.loader .bk{font-size:58px;animation:bob 1.4s ease-in-out infinite;filter:drop-shadow(0 8px 14px rgba(0,0,0,.4))}
.loader p{font-size:20px;letter-spacing:.2px;opacity:.9;margin:0;font-weight:600}
.loader .bar{width:180px;height:9px;border-radius:20px;background:rgba(255,255,255,.16);overflow:hidden}
.loader .bar i{display:block;height:100%;width:42%;border-radius:20px;
  background:linear-gradient(90deg,var(--accent),var(--glow));animation:slide 1.1s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-4deg)}50%{transform:translateY(-12px) rotate(4deg)}}
@keyframes slide{0%{transform:translateX(120%)}100%{transform:translateX(-320%)}}

/* ---------- floating chrome ---------- */
.float{position:fixed;z-index:40}
.glass{background:var(--glass);backdrop-filter:blur(11px) saturate(1.15);
  -webkit-backdrop-filter:blur(11px) saturate(1.15);border:1.5px solid rgba(255,255,255,.6);
  box-shadow:var(--shadow);border-radius:24px}

.hud{display:flex;align-items:center;gap:12px;padding:10px 14px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:21px;letter-spacing:.2px}
.brand .mark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;font-size:22px;
  overflow:hidden;background:linear-gradient(160deg,var(--accent),var(--accent-deep));
  box-shadow:0 4px 10px rgba(180,110,20,.45);transform:rotate(-4deg);color:#fff}
.brand .mark img{width:100%;height:100%;object-fit:cover}
.brand .name{font-family:var(--font-display);font-size:24px;line-height:1;font-weight:700}
.brand small{display:block;font-size:11.5px;font-weight:700;color:var(--ink-soft);
  letter-spacing:.2px;margin-top:2px;font-family:var(--font-ui)}

/* stars / progress */
.stars{display:flex;align-items:center;gap:3px;flex-direction:row-reverse}
.star{font-size:21px;line-height:1;filter:drop-shadow(0 1px 1px rgba(150,100,20,.35));
  transition:transform .3s cubic-bezier(.34,1.7,.5,1)}
.star.on{color:var(--accent)}.star.off{color:rgba(120,90,50,.24)}
.star.pop{transform:scale(1.5) rotate(-12deg)}
.progress-pill{display:flex;align-items:center;gap:9px;padding:6px 12px}
.progress-pill .count{font-weight:800;font-size:15px;color:var(--ink);font-variant-numeric:tabular-nums}
.lvl{font-size:12.5px;font-weight:800;color:var(--accent-deep);background:var(--accent-soft);
  padding:3px 10px;border-radius:20px;white-space:nowrap}

/* round icon buttons */
.orb{width:50px;height:50px;border-radius:50%;border:none;cursor:pointer;display:grid;place-items:center;
  font-size:21px;background:var(--glass);backdrop-filter:blur(8px);border:1.5px solid rgba(255,255,255,.6);
  box-shadow:var(--shadow);transition:transform .15s cubic-bezier(.34,1.6,.5,1)}
.orb:hover{transform:translateY(-3px) scale(1.05)}
.orb:active{transform:translateY(0) scale(.96)}
.orb.lg{width:58px;height:58px;font-size:25px}
.orb.accent{background:linear-gradient(160deg,var(--accent),var(--accent-deep));color:#fff;border-color:rgba(255,255,255,.4)}
.orb.on{background:linear-gradient(160deg,var(--accent),var(--accent-deep));color:#fff}
.orb-wrap{display:flex;align-items:center;gap:10px}

/* chunky text buttons */
.btn{border:none;cursor:pointer;font-weight:800;font-size:16.5px;border-radius:18px;padding:12px 22px;
  display:inline-flex;align-items:center;gap:9px;background:#fff;color:var(--ink);
  box-shadow:0 4px 0 rgba(120,90,50,.22), 0 8px 18px rgba(60,40,18,.16);
  transition:transform .12s, box-shadow .12s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 rgba(120,90,50,.22),0 4px 10px rgba(60,40,18,.16)}
.btn.primary{background:linear-gradient(160deg,var(--accent),var(--accent-deep));color:#fff;
  box-shadow:0 4px 0 var(--accent-deep), 0 10px 22px rgba(190,110,20,.42)}
.btn.primary:active{box-shadow:0 1px 0 var(--accent-deep),0 5px 12px rgba(190,110,20,.42)}
.btn.green{background:linear-gradient(160deg,var(--green),var(--green-deep));color:#fff;
  box-shadow:0 4px 0 var(--green-deep), 0 10px 22px rgba(46,125,82,.4)}
.btn.ghost{background:rgba(255,255,255,.72);box-shadow:none;border:1.5px solid var(--line)}
.btn.block{width:100%;justify-content:center}
.btn.lg{font-size:18.5px;padding:15px 28px}
.btn:disabled{opacity:.45;cursor:default}

/* ---------- hint toast ---------- */
.toast{position:fixed;left:50%;top:90px;transform:translateX(-50%);z-index:60;
  background:var(--ink);color:#fff8ec;font-weight:700;font-size:15.5px;padding:11px 22px;border-radius:18px;
  box-shadow:var(--shadow);display:flex;align-items:center;gap:9px;max-width:min(90vw,520px);text-align:center;
  animation:toastIn .4s cubic-bezier(.34,1.5,.5,1)}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,-12px)}to{opacity:1;transform:translate(-50%,0)}}

/* walk hint line */
.sr-hint{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);z-index:35;color:#fff8ec;
  font-weight:700;font-size:14.5px;opacity:.85;display:flex;align-items:center;gap:8px;pointer-events:none;
  text-shadow:0 2px 6px rgba(0,0,0,.55);text-align:center}

/* ---------- on-screen walk pad ---------- */
.walkpad{display:grid;grid-template-columns:repeat(3,46px);grid-template-rows:repeat(3,46px);gap:4px;
  padding:8px;border-radius:26px;
  grid-template-areas:". up ." "left hub right" ". down .";}
.padbtn{border:none;cursor:pointer;background:rgba(255,255,255,.72);border:1.5px solid rgba(255,255,255,.7);
  border-radius:14px;font-size:18px;color:var(--ink);display:grid;place-items:center;
  box-shadow:0 3px 0 rgba(120,90,50,.18);transition:transform .08s, background .15s;touch-action:none;user-select:none}
.padbtn:hover{background:#fff}
.padbtn:active{transform:translateY(2px);background:var(--accent-soft)}
.padhub{grid-area:hub;display:grid;place-items:center;font-size:20px;opacity:.6}

/* ==========================================================================
   Side reading panel — detail → reader → quiz live here (RTL: slides from left)
   ========================================================================== */
.scrim{position:fixed;inset:0;z-index:50;background:rgba(30,18,8,.4);backdrop-filter:blur(2px);
  animation:fade .3s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}

.panel{position:fixed;z-index:55;background:var(--cream);box-shadow:var(--shadow);
  display:flex;flex-direction:column;overflow:hidden;direction:rtl}
.panel.slide{top:0;left:0;height:100%;width:min(460px,94vw);border-radius:0 30px 30px 0;
  animation:slideIn .42s cubic-bezier(.22,1,.3,1);border-right:none}
.panel.slide.reading{width:min(560px,96vw)}
@keyframes slideIn{from{transform:translateX(-100%)}to{transform:translateX(0)}}
.panel.sheet{left:0;right:0;bottom:0;max-height:82vh;border-radius:30px 30px 0 0;
  animation:sheetIn .42s cubic-bezier(.22,1,.3,1)}
@keyframes sheetIn{from{transform:translateY(100%)}to{transform:translateY(0)}}
.panel.modal{top:50%;left:50%;width:min(480px,94vw);max-height:90vh;border-radius:30px;
  transform:translate(-50%,-50%);animation:popIn .4s cubic-bezier(.34,1.5,.5,1)}
@keyframes popIn{from{opacity:0;transform:translate(-50%,-44%) scale(.9)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}

/* gold top ribbon with arabesque motif */
.panel .ribbon{height:8px;flex:none;background:
  linear-gradient(90deg,var(--accent),var(--glow),var(--accent));
  box-shadow:inset 0 -1px 0 var(--gold-line)}
.panel .pbody{padding:22px 26px 26px;overflow:auto}
.panel .close{position:absolute;top:18px;left:18px;width:40px;height:40px;border-radius:50%;border:none;
  background:rgba(120,90,50,.12);color:var(--ink);font-size:20px;cursor:pointer;z-index:3;transition:background .2s}
.panel .close:hover{background:rgba(120,90,50,.22)}

.cover{height:200px;border-radius:20px;position:relative;overflow:hidden;display:grid;place-items:center;
  box-shadow:inset 0 -50px 70px rgba(0,0,0,.22), 0 6px 16px rgba(60,40,18,.18);background-size:cover;background-position:center}
.cover .big{font-size:64px;filter:drop-shadow(0 6px 10px rgba(0,0,0,.3))}
.cover .corner{position:absolute;top:10px;right:12px;width:30px;height:30px;opacity:.85;
  background:var(--star8);background-size:contain;background-repeat:no-repeat;filter:brightness(3)}
.panel h2{font-size:28px;margin:18px 0 2px;line-height:1.25;font-family:var(--font-display);font-weight:700}
.panel .by{color:var(--ink-soft);font-weight:700;font-size:14.5px;margin:0 0 12px}
.panel .blurb{font-family:var(--font-read);font-size:17.5px;line-height:1.75;color:var(--ink-soft);margin:0 0 16px}
.meta-row{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.tag{background:var(--accent-soft);color:var(--accent-deep);font-weight:800;font-size:13.5px;
  padding:6px 14px;border-radius:20px;display:inline-flex;gap:6px;align-items:center}
.tag.done{background:var(--green-soft);color:var(--green-deep)}
.panel .actions{display:flex;flex-direction:column;gap:10px;margin-top:6px}

/* ---------- reader (inside the side panel) ---------- */
.reader-illu{height:min(230px,30vh);border-radius:18px;position:relative;display:grid;place-items:center;flex:none;
  overflow:hidden;background-size:cover;background-position:center;margin-bottom:16px;
  box-shadow:inset 0 -40px 60px rgba(0,0,0,.2)}
.reader-illu .big{font-size:74px;filter:drop-shadow(0 8px 14px rgba(0,0,0,.3))}
.page-text{font-family:var(--font-read);font-size:21px;line-height:2;color:var(--ink);margin:0 0 8px}
.page-text .word{transition:background .15s;border-radius:6px;padding:0 1px}
.page-text .word.read{background:var(--accent-soft)}
.reader-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;
  padding-top:16px;border-top:1.5px solid var(--line)}
.dots{display:flex;gap:7px;flex-direction:row-reverse}
.dots i{width:9px;height:9px;border-radius:50%;background:rgba(120,90,50,.25);transition:all .25s}
.dots i.on{background:var(--accent);width:22px;border-radius:6px}

/* read-aloud waveform */
.wave{display:inline-flex;align-items:center;gap:3px;height:18px}
.wave i{width:3px;border-radius:3px;background:currentColor;height:5px}
.wave.play i{animation:eq .8s ease-in-out infinite}
.wave.play i:nth-child(2){animation-delay:.15s}.wave.play i:nth-child(3){animation-delay:.3s}
.wave.play i:nth-child(4){animation-delay:.45s}.wave.play i:nth-child(5){animation-delay:.1s}
@keyframes eq{0%,100%{height:5px}50%{height:17px}}

/* ---------- quiz (inside the side panel) ---------- */
.quiz{text-align:center}
.quiz .qkicker{font-weight:800;color:var(--accent-deep);letter-spacing:.3px;font-size:13px}
.quiz h3{font-size:23px;margin:8px 0 20px;line-height:1.5;font-family:var(--font-ui)}
.opts{display:flex;flex-direction:column;gap:12px}
.opt{border:2px solid var(--line);background:#fff;border-radius:18px;padding:15px 18px;font-weight:700;
  font-size:17.5px;cursor:pointer;text-align:right;display:flex;align-items:center;gap:12px;font-family:var(--font-read);
  transition:transform .12s, border-color .2s, background .2s}
.opt:hover{transform:translateY(-2px);border-color:var(--accent)}
.opt .key{width:32px;height:32px;border-radius:10px;background:var(--accent-soft);color:var(--accent-deep);
  display:grid;place-items:center;font-size:16px;flex:none;font-weight:800}
.opt.correct{background:var(--green-soft);border-color:var(--green)}.opt.correct .key{background:var(--green);color:#fff}
.opt.wrong{background:#fbe4e0;border-color:#e07a6a;animation:shake .4s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(7px)}75%{transform:translateX(-7px)}}
.celebrate{text-align:center;padding:14px 6px}
.celebrate .big{font-size:84px;animation:bob 1.2s ease-in-out infinite}
.celebrate h3{font-size:27px;margin:8px 0 6px;font-family:var(--font-display);font-weight:700}
.celebrate p{font-family:var(--font-read);color:var(--ink-soft);font-size:17.5px;margin:0 0 18px;line-height:1.7}

/* confetti */
.confetti{position:fixed;inset:0;pointer-events:none;z-index:90;overflow:hidden}
.confetti i{position:absolute;top:-20px;width:11px;height:14px;border-radius:2px;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(540deg)}}

/* ---------- parent gate / dashboard / settings ---------- */
.modal-c{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:20px;
  background:rgba(30,18,8,.5);backdrop-filter:blur(3px);animation:fade .3s}
.card{background:var(--cream);border-radius:28px;box-shadow:var(--shadow);width:min(440px,94vw);
  padding:26px 28px;animation:popIn .4s cubic-bezier(.34,1.4,.5,1);max-height:90vh;overflow:auto;
  position:relative;direction:rtl}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:8px;border-radius:28px 28px 0 0;
  background:linear-gradient(90deg,var(--accent),var(--glow),var(--accent))}
.card h3{font-size:24px;margin:8px 0 4px;font-family:var(--font-display);font-weight:700}
.card .sub{color:var(--ink-soft);font-family:var(--font-read);font-size:15.5px;margin:0 0 18px;line-height:1.6}
.gate-q{font-size:30px;font-weight:800;text-align:center;margin:10px 0 14px;font-variant-numeric:tabular-nums}
.gate-keys{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:250px;margin:0 auto}
.gate-keys button{padding:14px;font-size:20px;font-weight:800;border-radius:16px;border:2px solid var(--line);
  background:#fff;cursor:pointer;transition:transform .1s}
.gate-keys button:active{transform:scale(.94);background:var(--accent-soft)}
.gate-display{text-align:center;font-size:32px;font-weight:800;letter-spacing:6px;height:42px;color:var(--accent-deep);
  font-variant-numeric:tabular-nums}
.gate-err{color:#d4604f;text-align:center;font-weight:700;font-size:14.5px;min-height:18px}
.dash-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:6px 0 18px}
.stat{background:#fff;border-radius:18px;padding:14px 16px;border:1.5px solid var(--line);text-align:center}
.stat b{display:block;font-size:30px;line-height:1;color:var(--accent-deep);font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:var(--ink-soft);font-weight:700}
.setting{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 2px;border-top:1.5px solid var(--line)}
.setting:first-of-type{border-top:none}
.setting .lbl{font-weight:800;font-size:15.5px}
.setting .lbl small{display:block;font-weight:600;color:var(--ink-soft);font-size:12.5px;margin-top:2px}
.switch{width:52px;height:30px;border-radius:20px;border:none;cursor:pointer;position:relative;flex:none;
  background:rgba(120,90,50,.25);transition:background .2s}
.switch.on{background:var(--green)}
.switch i{position:absolute;top:3px;right:3px;width:24px;height:24px;border-radius:50%;background:#fff;
  box-shadow:0 2px 4px rgba(0,0,0,.2);transition:right .2s}
.switch.on i{right:25px}

/* ---------- welcome ---------- */
.welcome{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px;
  background:radial-gradient(120% 90% at 50% 26%, rgba(60,40,18,.25), rgba(18,11,5,.78));animation:fade .5s}
.welcome .card{text-align:center;max-width:460px;overflow:hidden}
.welcome .whero{height:188px;border-radius:18px;margin:6px 0 16px;background-size:cover;background-position:center;
  display:grid;place-items:center;box-shadow:0 8px 20px rgba(60,40,18,.2)}
.welcome .whero .wbig{font-size:66px;animation:bob 2s ease-in-out infinite}
.welcome h1{font-size:33px;margin:6px 0 8px;font-family:var(--font-display);font-weight:700;line-height:1.3}
.welcome .bismillah{font-family:var(--font-display);font-size:21px;color:var(--accent-deep);margin:0 0 10px;opacity:.95}
.welcome p{font-family:var(--font-read);font-size:17.5px;color:var(--ink-soft);line-height:1.8;margin:0 0 20px}

/* ---------- responsive ---------- */
@media (max-width:640px){
  .brand small{display:none}
  .hud{padding:8px 11px;gap:9px}
  .brand{font-size:18px}.brand .name{font-size:21px}
  .panel h2{font-size:24px}
  .walkpad{grid-template-columns:repeat(3,42px);grid-template-rows:repeat(3,42px)}
  .progress-pill .lvl{display:none}
}
@media (max-width:420px){
  .stars{display:none}
}