.pkb{--w:min(1360px,96vw);font-family:'Hind Siliguri','Noto Sans Bengali','Noto Sans Arabic','Nirmala UI','Segoe UI',system-ui,sans-serif;color:#2a2140;background:#f6fbf8;line-height:1.75;font-size:18px;border-radius:30px;overflow:hidden;margin:24px 0;box-sizing:border-box;text-align:start;width:var(--w);position:relative;left:50%;transform:translateX(-50%)}
.pkb *{box-sizing:border-box}
.pkb p,.pkb li,.pkb label,.pkb small,.pkb b,.pkb span{color:inherit;font-family:inherit}
.pkb-hd{background:linear-gradient(120deg,#0b6b4f,#12a37a 55%,#d4a017);padding:26px 28px 20px;border-radius:0 0 30px 30px;box-shadow:0 8px 24px rgba(18,163,122,.3)}
.pkb-hd,.pkb-hd *{color:#fff}
.pkb-top{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.pkb .pkb-tt{font-size:clamp(26px,4.4vw,42px);line-height:1.25;font-weight:700;margin:0}
.pkb .pkb-sb{margin:2px 0 0;opacity:.92;font-size:16px}
.pkb-rt{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pkb .pkb-pl{background:rgba(255,255,255,.2);border:1.5px solid rgba(255,255,255,.45);border-radius:99px;padding:5px 14px;font-weight:600;font-size:15px;white-space:nowrap}
.pkb .pkb-fb{appearance:none;-webkit-appearance:none;font:inherit;font-size:15px;font-weight:600;background:#fff;color:#0b6b4f;border:0;border-radius:99px;padding:5px 14px;margin:0;cursor:pointer;line-height:1.5;box-shadow:none;text-transform:none;letter-spacing:0}
.pkb .pkb-fb:hover{background:#fff;color:#b8860b}
.pkb .pkb-fb:before{content:"⛶ "}
.pkb.pkb-fs .pkb-fb:before{content:"✕ "}
.pkb-gr{display:grid;grid-template-columns:310px 1fr;gap:22px;padding:24px 22px}
.pkb-tc{background:#fff;border:1.5px solid #dcebe3;border-radius:22px;padding:14px;align-self:start;position:sticky;top:12px}
.pkb-tc.pulse{animation:pkbp 1s}
@keyframes pkbp{50%{box-shadow:0 0 0 6px rgba(18,163,122,.35)}}
.pkb .pkb-th{font-size:19px;font-weight:700;margin:2px 6px 8px;color:#2a2140}
.pkb .pkb-ti{appearance:none;-webkit-appearance:none;display:flex;gap:10px;align-items:center;width:100%;text-align:start;font:inherit;font-size:16px;color:#2a2140;background:transparent;border:0;border-radius:14px;padding:9px 10px;margin:0;cursor:pointer;transition:.18s;box-shadow:none;text-transform:none;letter-spacing:0;line-height:1.4}
.pkb .pkb-ti:hover{background:#e9f5ee;color:#2a2140}
.pkb .pkb-ti.on{background:var(--c);color:#fff;font-weight:600}
.pkb .pkb-ti.on *{color:#fff;background:none}
.pkb .pkb-em{font-size:21px}
.pkb .pkb-ti small{margin-inline-start:auto;opacity:.75;white-space:nowrap}
.pkb-mn{position:relative;background:#fff;border:1.5px solid #dcebe3;border-radius:26px;overflow:hidden;box-shadow:0 10px 30px rgba(11,107,79,.12);align-self:start;min-height:420px}
/* লুকানো পাতাও DOM-এ রেন্ডার থাকে, যাতে অনুবাদ সব পাতায় পৌঁছায় */
.pkb-pg{position:absolute;top:0;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);clip-path:inset(50%);opacity:0;pointer-events:none;white-space:nowrap}
.pkb-pg.on,.pkb:not(.js) .pkb-pg{position:static;width:auto;height:auto;overflow:visible;clip:auto;clip-path:none;opacity:1;pointer-events:auto;white-space:normal}
.pkb-pg.on{animation:pkbf .35s}
@keyframes pkbf{from{opacity:0;transform:translateY(8px)}}
.pkb-cb{background:var(--c);display:flex;gap:14px;align-items:center;padding:20px 28px}
.pkb-cb,.pkb-cb *{color:#fff!important}
.pkb .pkb-bg{font-size:48px;animation:pkbb 2.4s ease-in-out infinite;line-height:1}
@keyframes pkbb{50%{transform:translateY(-5px) rotate(-6deg)}}
.pkb .pkb-ct{font-size:clamp(22px,3.6vw,32px);line-height:1.3;font-weight:700;margin:0}
.pkb-bd{padding:24px 36px;color:#2a2140;font-size:1.06em}
.pkb-bd p{margin:0 0 14px;color:#2a2140}
.pkb-bd ul{list-style:none;margin:0 0 14px;padding:0}
.pkb-bd li{background:#e9f5ee;border-radius:14px;padding-block:9px;padding-inline:44px 16px;margin:0 0 9px;position:relative;color:#2a2140;list-style:none}
.pkb-bd li:before{content:"✦";position:absolute;inset-inline-start:16px;color:var(--c)}
.pkb-bd .pkb-tp{background:#fff4d6;border-inline-start:5px solid #ffc83d;border-radius:14px;padding:11px 16px;color:#2a2140}
.pkb-nv{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;padding:0 36px 26px}
.pkb .pkb-bt{appearance:none;-webkit-appearance:none;font:inherit;font-weight:600;font-size:15px;border:2px solid var(--c);border-radius:99px;padding:9px 20px;margin:0;cursor:pointer;color:#fff;background:var(--c);transition:.15s;text-transform:none;letter-spacing:0;line-height:1.4;box-shadow:none}
.pkb .pkb-bt:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 14px rgba(0,0,0,.2);color:#fff;background:var(--c)}
.pkb .pkb-bt:disabled{opacity:.35;cursor:default}
.pkb .pkb-bt.pkb-o,.pkb .pkb-bt.pkb-o:hover:not(:disabled){background:transparent;color:var(--c)}
.pkb .pkb-bt[data-act=prev]:before{content:"← "}
.pkb .pkb-bt[data-act=next]:after{content:" →"}
.pkb[dir=rtl] .pkb-bt[data-act=prev]:before{content:"→ "}
.pkb[dir=rtl] .pkb-bt[data-act=next]:after{content:" ←"}
.pkb-ex{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:0 16px 8px}
.pkb .pkb-xb{padding:12px 28px;font-size:16px}
.pkb .pkb-nt{text-align:center;color:#6e6488;font-size:14px;padding:0 16px 24px;margin:0}
/* মোবাইল: প্রান্ত থেকে প্রান্ত, ফুল-উইডথ */
@media(max-width:780px){
 .pkb{--w:100vw;border-radius:0;margin:0;font-size:17px}
 .pkb-hd{padding:20px 14px 16px;border-radius:0 0 22px 22px}
 .pkb-gr{grid-template-columns:1fr;padding:14px 8px;gap:14px}
 .pkb-tc{position:static;border-radius:18px}
 .pkb-mn{border-radius:18px;min-height:0}
 .pkb-cb{padding:16px 16px}
 .pkb-bd{padding:18px 16px}
 .pkb-nv{padding:0 16px 20px}
}
/* ফুল স্ক্রীন মোড */
html.pkb-lock,html.pkb-lock body{overflow:hidden!important}
.pkb.pkb-fs{position:fixed;inset:0;left:0;z-index:2147483000;width:100%;max-width:none;height:100%;margin:0;transform:none;border-radius:0;overflow:auto;-webkit-overflow-scrolling:touch}
.pkb.pkb-fs .pkb-hd{padding-top:calc(22px + env(safe-area-inset-top,0px))}
.pkb.pkb-fs .pkb-gr{max-width:1360px;margin:0 auto}
/* বইয়ের বিশেষ উপাদান */
.pkb-bd .pkb-sh{font-size:1.14em;font-weight:700;color:var(--c);margin:16px 0 8px;padding-block:2px;border-bottom:2px dashed var(--c);line-height:1.5}
.pkb-bd .pkb-sh:first-child{margin-top:0}
.pkb-bd .pkb-or{text-align:center;font-size:1.5em;letter-spacing:.3em;color:var(--c);margin:14px 0}
.pkb-bd .pkb-cn{text-align:center;font-size:1.05em;margin:0 0 12px}
.pkb-bd .pkb-ch{text-align:center;font-size:1.7em;font-weight:700;line-height:1.35;color:var(--c);margin:6px 0 12px}
.pkb-tw{overflow-x:auto;margin:0 0 14px}
.pkb-tb{border-collapse:collapse;width:100%;font-size:.95em;margin:0}
.pkb-tb th{background:var(--c);color:#fff;padding:8px 10px;text-align:start;border:1px solid var(--c);font-weight:600}
.pkb-tb td{padding:8px 10px;border:1px solid #cfe3d8;color:#2a2140;background:#fff;vertical-align:top}
.pkb-tb tr:nth-child(even) td{background:#f3faf6}
.pkb-tb td.pkb-ar{font-size:1.25em;white-space:nowrap;font-family:'Noto Naskh Arabic','Amiri','Traditional Arabic','Segoe UI',serif}

/* পাঁচ কালিমার বিশেষ উপাদান */
.pkb-bd .pkb-ar{direction:rtl;text-align:center;font-family:'Amiri','Noto Naskh Arabic','Scheherazade New','Traditional Arabic','Segoe UI',serif;font-size:1.9em;line-height:2.3;background:#fff;border:2px solid var(--c);border-radius:18px;padding:14px 16px;margin:10px 0 14px;color:#1c2a24}
.pkb-bd .pkb-pr,.pkb-bd .pkb-mn{border-radius:14px;padding:12px 16px;margin:0 0 10px;color:#2a2140;background:#e9f5ee;border-inline-start:6px solid var(--c)}
.pkb-bd .pkb-mn{background:#fff4d6;border-inline-start-color:#ffc83d}
.pkb-bd .pkb-pr strong,.pkb-bd .pkb-mn strong{display:block;margin-bottom:2px;color:var(--c)}
.pkb-bd .pkb-it{margin:0 0 12px;color:#4a4560}
.pkb .pkb-ds{text-align:center;color:#6e6488;font-size:14px;padding:0 16px 24px;margin:-14px 0 0}