.JdF4bW_headTitle{gap:16px;display:grid}.JdF4bW_cabinet{background:linear-gradient(180deg, #ffffff1f, transparent 30%), linear-gradient(135deg, var(--brand-600), var(--brand-800));border-radius:22px 22px 14px 14px;width:100%;max-width:470px;margin-inline:auto;padding:26px 22px 22px;position:relative;box-shadow:inset 0 2px #fff3,0 40px 70px -36px #1d2547bf}.JdF4bW_cabinet:before{content:"";background:linear-gradient(180deg, var(--brand-500), var(--brand-700));border-radius:12px;height:22px;position:absolute;inset:-10px -12px auto;box-shadow:0 6px 12px -6px #00000059}.JdF4bW_cabinetCrown{width:54px;position:absolute;top:-50px;right:30px;transform:rotate(10deg)}.JdF4bW_drawers{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.JdF4bW_drawer{background:#0a0e228c;border-radius:12px;height:clamp(118px,15vw,140px);display:block;position:relative;box-shadow:inset 0 6px 14px #00000073}.JdF4bW_drawerInside{transition:transform .55s var(--ease-spring);justify-content:center;gap:4px;display:flex;position:absolute;inset:10px 14px auto;transform:translateY(26px)}.JdF4bW_drawerInside span{background:var(--surface);border-top:5px solid var(--tone);border-radius:6px 6px 0 0;width:30%;height:46px}.JdF4bW_drawerInside span:nth-child(2){background:var(--tone-soft);transform:translateY(-6px)}.JdF4bW_drawerFront{background:linear-gradient(180deg, #fff, var(--paper-2));transition:transform .55s var(--ease-spring), box-shadow .4s ease;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:12px;display:flex;position:absolute;inset:0;box-shadow:inset 0 -3px #11163a14,0 2px #0003}.JdF4bW_drawer:hover .JdF4bW_drawerFront,.JdF4bW_drawer:focus-visible .JdF4bW_drawerFront{transform:translateY(38px)scale(1.04);box-shadow:inset 0 -3px #11163a14,0 18px 30px -12px #00000073}.JdF4bW_drawer:hover .JdF4bW_drawerInside,.JdF4bW_drawer:focus-visible .JdF4bW_drawerInside{transform:translateY(-4px)}.JdF4bW_drawers li{position:relative}.JdF4bW_drawers li:hover,.JdF4bW_drawers li:focus-within{z-index:2}.JdF4bW_labelPlate{border:1.5px solid var(--tone);background:var(--tone-soft);color:var(--tone-ink);text-align:center;border-radius:6px;align-items:center;gap:7px;padding:6px 12px;font-size:.85rem;font-weight:700;line-height:1.25;display:inline-flex}:lang(bn) .JdF4bW_labelPlate{font-family:var(--font-display-bn);font-size:.95rem;font-weight:600}.JdF4bW_handle{background:linear-gradient(180deg, #ffd27a, var(--gold) 50%, #c98a14);border-radius:0 0 14px 14px;width:54px;height:12px;box-shadow:0 2px 3px #00000040}.JdF4bW_feet{background:linear-gradient(var(--brand-800), var(--brand-900)) left / 28px 100% no-repeat, linear-gradient(var(--brand-800), var(--brand-900)) right / 28px 100% no-repeat;height:14px;position:absolute;inset:auto 24px -14px}.JdF4bW_shelves{gap:18px;display:grid}.JdF4bW_shelf{border-radius:var(--r-lg);background:var(--surface);border:1px solid var(--line);scroll-margin-top:calc(var(--header-h) + 24px);transition:box-shadow .4s var(--ease-out), border-color .4s ease;gap:24px;padding:clamp(22px,3vw,32px);display:grid;position:relative;overflow:hidden}.JdF4bW_shelf:after{content:"";background:var(--tone);transform-origin:0;height:6px;transition:transform .7s var(--ease-out);position:absolute;bottom:0;left:0;right:0;transform:scaleX(.12)}.JdF4bW_shelf:hover{box-shadow:var(--shadow-md);border-color:#0000}.JdF4bW_shelf:hover:after,.JdF4bW_shelf:target:after{transform:scaleX(1)}@media (min-width:960px){.JdF4bW_shelf{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);align-items:center;gap:40px}}.JdF4bW_shelfHead{grid-template-columns:auto 1fr auto;align-items:center;gap:6px 16px;display:grid}.JdF4bW_shelfNum{display:none}.JdF4bW_shelfIcon{background:var(--tone);width:56px;height:56px;color:var(--tone-on);box-shadow:0 14px 24px -14px var(--tone);border-radius:18px 18px 18px 6px;grid-row:span 2;place-items:center;display:grid}.JdF4bW_shelfTitle{font-family:var(--font-display);letter-spacing:-.02em;font-size:1.45rem;font-weight:700}:lang(bn) .JdF4bW_shelfTitle{font-family:var(--font-display-bn);letter-spacing:0;font-weight:600}.JdF4bW_shelfText{color:var(--text-muted);grid-column:2/-1}.JdF4bW_shelfCount{border-radius:var(--r-pill);background:var(--tone-soft);color:var(--tone-ink);white-space:nowrap;grid-area:1/3;padding:4px 12px;font-size:.82rem;font-weight:700}.JdF4bW_items{gap:4px;display:grid}.JdF4bW_itemLink{border-radius:var(--r-sm);justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;font-weight:600;display:flex}.JdF4bW_itemLink:hover{background:var(--tone-soft)}.JdF4bW_placeholders{gap:12px;display:grid}.JdF4bW_ghosts{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.JdF4bW_ghost{border-radius:var(--r-sm);background:var(--paper);border:1px dashed var(--line-strong);gap:7px;padding:14px;display:grid}.JdF4bW_ghost i{background:linear-gradient(90deg, var(--paper-2) 0%, var(--tone-soft) 40%, var(--paper-2) 80%) 0 0 / 300% 100%;height:8px;animation:2.4s ease-in-out infinite JdF4bW_shimmer;animation-delay:calc(var(--k) * .2s);border-radius:4px}.JdF4bW_ghost i:first-child{border-radius:8px;height:34px}.JdF4bW_ghost i:last-child{width:60%}@keyframes JdF4bW_shimmer{0%{background-position:100% 0}to{background-position:-50% 0}}.JdF4bW_soon{color:var(--text-muted);font-size:.92rem}.JdF4bW_soon strong{color:var(--tone-ink)}.JdF4bW_freeClass{scroll-margin-top:calc(var(--header-h) + 8px)}.JdF4bW_glowA{background:#ff6f5e47;width:560px;height:560px;top:-30%;right:-10%}.JdF4bW_glowB{background:#576eb566;width:420px;height:420px;bottom:-30%;left:10%}.JdF4bW_fcGrid{gap:clamp(40px,5vw,64px);display:grid}@media (min-width:1000px){.JdF4bW_fcGrid{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);align-items:center}}.JdF4bW_fcCopy{gap:16px;display:grid}.JdF4bW_fcNotifyTitle{color:#fff;margin-top:16px;font-weight:700}.JdF4bW_video{gap:18px;display:grid}.JdF4bW_screen{isolation:isolate;aspect-ratio:16/10;border-radius:var(--r-lg);background:radial-gradient(circle at 70% 30%,#ff6f5e59,#0000 50%),radial-gradient(circle at 20% 80%,#576eb580,#0000 55%),#0d1230;align-content:end;padding:clamp(18px,3vw,28px);display:grid;position:relative;overflow:hidden;box-shadow:0 40px 80px -40px #000000e6}.JdF4bW_sampleTag{border-radius:var(--r-pill);background:var(--gold);color:var(--ink-900);padding:4px 12px;font-size:.78rem;font-weight:700;position:absolute;top:18px;left:18px}:lang(bn) .JdF4bW_sampleTag{font-size:.88rem}.JdF4bW_play{color:#fff;width:84px;height:84px;animation:JdF4bW_pulse 2.6s var(--ease-out) infinite;background:#ffffff1f;border-radius:50%;place-items:center;margin:-42px 0 0 -42px;display:grid;position:absolute;top:50%;left:50%;box-shadow:0 0 #ffffff4d}@keyframes JdF4bW_pulse{70%,to{box-shadow:0 0 0 26px #fff0}}.JdF4bW_lessonMeta{color:#fff9;font-size:.85rem}.JdF4bW_lessonTitle{font-family:var(--font-display);color:#fff;font-size:clamp(1.1rem,1rem + .8vw,1.6rem);font-weight:700}:lang(bn) .JdF4bW_lessonTitle{font-family:var(--font-display-bn);font-weight:600}.JdF4bW_controls{color:#ffffffbf;align-items:center;gap:12px;margin-top:14px;display:flex}.JdF4bW_scrub{flex:1;gap:4px;height:5px;display:flex}.JdF4bW_scrub i{background:#ffffff2e;border-radius:3px;flex:1;position:relative;overflow:hidden}.JdF4bW_scrub i:after{content:"";background:var(--gold);transform-origin:0;animation:10s linear infinite JdF4bW_chapter;animation-delay:calc(var(--i) * 2.5s);position:absolute;inset:0;transform:scaleX(0)}@keyframes JdF4bW_chapter{0%{opacity:1;transform:scaleX(0)}25%{opacity:1;transform:scaleX(1)}95%{opacity:1;transform:scaleX(1)}to{opacity:0;transform:scaleX(1)}}.JdF4bW_chapters{gap:10px;display:grid}.JdF4bW_chaptersLabel{letter-spacing:.12em;text-transform:uppercase;color:var(--brand-300);font-size:.8rem;font-weight:700}:lang(bn) .JdF4bW_chaptersLabel{letter-spacing:0;text-transform:none;font-size:.95rem}.JdF4bW_chapters ol{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:0;padding:0;list-style:none;display:grid}.JdF4bW_chapters li{border-radius:var(--r-sm);border:1px solid var(--slab-line);color:#fff;background:#ffffff0d;align-items:center;gap:10px;padding:10px 14px;font-size:.95rem;font-weight:600;display:flex}.JdF4bW_chapters li span{color:var(--gold);font-size:.85rem}.JdF4bW_updates{align-items:center;gap:clamp(32px,5vw,64px);display:grid}@media (min-width:900px){.JdF4bW_updates{grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr)}}.JdF4bW_envelope{aspect-ratio:1.5;width:min(100%,340px);margin-inline:auto;position:relative}.JdF4bW_envBody{background:linear-gradient(155deg, transparent 49.5%, var(--brand-200) 50%, transparent 51%) left / 50% 100% no-repeat, linear-gradient(-155deg, transparent 49.5%, var(--brand-200) 50%, transparent 51%) right / 50% 100% no-repeat, var(--brand-100);box-shadow:var(--shadow-lg);border-radius:10px 10px 18px 18px;position:absolute;inset:30% 0 0}.JdF4bW_envLetter{background:repeating-linear-gradient(to bottom, transparent 0 16px, var(--line) 16px 17px) 18px 40px / calc(100% - 36px) 60% no-repeat, var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);border-radius:8px;animation:4s ease-in-out infinite JdF4bW_letter;position:absolute;inset:0 10% 20%}@keyframes JdF4bW_letter{50%{transform:translateY(-14px)}}.JdF4bW_envStamp{background:var(--surface);outline:3px dotted var(--red);outline-offset:-6px;border-radius:4px;place-items:center;width:56px;height:64px;display:grid;position:absolute;bottom:14%;right:8%;transform:rotate(8deg)}.JdF4bW_stampCrown{width:32px}.JdF4bW_updatesCopy{justify-items:start;gap:16px;display:grid}.JdF4bW_form{margin-top:8px}