.bm-app{max-width:1200px;margin:25px auto;padding:24px;border-radius:34px;background:linear-gradient(180deg,#fff9df 0%,#eaf7ff 52%,#fff0df 100%);box-shadow:0 15px 45px rgba(0,0,0,.12);font-family:Arial,"Noto Sans Bengali","Noto Sans Devanagari",sans-serif;overflow:hidden;position:relative}
.bm-header{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap}.bm-home{text-decoration:none;background:#0967c8;color:white;padding:13px 22px;border-radius:30px;font-size:18px;font-weight:800}.bm-languages{display:flex;gap:8px;flex-wrap:wrap}.bm-lang{border:2px solid #1475d1;background:white;color:#0758a8;padding:11px 22px;border-radius:30px;font-size:17px;font-weight:800;cursor:pointer}.bm-lang.active{background:#209c34;border-color:#209c34;color:white}.bm-age{background:#ffe27c;border-radius:26px;padding:10px 20px;text-align:center;color:#154b82}.bm-age small{display:block;margin-top:4px}.bm-progress-wrap{margin:18px 0 4px}.bm-progress{height:9px;background:white;border-radius:20px;overflow:hidden}.bm-progress div{height:100%;background:#36ad48;transition:width .35s}.bm-progress-text{text-align:center;font-size:13px;color:#35617f;margin-top:5px}
.bm-main{display:grid;grid-template-columns:1.08fr .92fr;gap:30px;align-items:center;margin-top:18px}.bm-scene{min-height:500px;position:relative;overflow:hidden;border-radius:32px;display:flex;align-items:flex-end;justify-content:center;padding:25px;background:linear-gradient(180deg,#dff6ff,#fff2cc)}.bm-deco{position:absolute;border-radius:50%;opacity:.35}.bm-deco-one{width:190px;height:190px;background:#ffd765;left:-60px;top:-45px}.bm-deco-two{width:180px;height:180px;background:#8bdfff;right:-55px;bottom:-40px}.bm-character-wrap{width:100%;display:flex;justify-content:center;align-items:flex-end;cursor:pointer;z-index:3}.bm-character{width:100%;max-width:610px;height:auto;display:block;transform-origin:bottom center;animation:bmFloat 3s ease-in-out infinite}@keyframes bmFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}.bm-character.talking{animation:bmTalk .27s ease-in-out 8}@keyframes bmTalk{0%,100%{transform:scale(1)}50%{transform:scale(1.04) rotate(-1deg)}}.bm-character.touching{animation:bmTouch .45s ease}@keyframes bmTouch{0%{transform:scale(1)}50%{transform:scale(1.07)}100%{transform:scale(1)}}.bm-small-bubble{position:absolute;top:35px;right:35px;background:white;padding:14px 24px;border-radius:28px;color:#d61d25;font-size:30px;font-weight:900;box-shadow:0 7px 20px rgba(0,0,0,.13);z-index:5}.bm-tap-hint{position:absolute;left:20px;bottom:15px;background:rgba(255,255,255,.92);padding:9px 16px;border-radius:20px;color:#1760a7;font-weight:800;font-size:14px;z-index:5}
.bm-learning{text-align:center}.bm-title-card{background:white;padding:24px;border-radius:34px;box-shadow:0 8px 24px rgba(0,0,0,.08)}.bm-brand{color:#45a049;font-size:15px;font-weight:900;margin-bottom:8px;text-transform:uppercase}.bm-title-card h1{margin:0;font-size:82px;color:#0871d8;line-height:1.1}#bm-instruction{font-size:22px;font-weight:800;color:#244f76;margin-top:8px}.bm-bubble{margin:25px auto;max-width:520px;padding:25px;background:white;border-radius:40px;font-size:25px;color:#173d68;box-shadow:0 8px 25px rgba(0,0,0,.10);transition:.3s}.bm-bubble strong{font-size:38px;color:#d71c24}.bm-bubble.highlight{transform:scale(1.04)}
.bm-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}.bm-actions button,.bm-next,.bm-prev{border:none;border-radius:38px;padding:17px 28px;font-size:20px;font-weight:900;cursor:pointer;box-shadow:0 7px 14px rgba(0,0,0,.16)}.bm-listen{background:#0767ca;color:white}.bm-said{background:#1ba13a;color:white}.bm-bottom{margin-top:30px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.bm-parent{flex:1;min-width:280px;display:flex;gap:18px;align-items:center;background:#fff9df;padding:20px 25px;border-radius:28px}.bm-parent-icon{font-size:58px}.bm-parent h3{color:#ce1d28;margin:0 0 5px;font-size:24px}.bm-parent p{margin:0;font-size:19px;color:#234b73}.bm-nav-actions{display:flex;gap:10px;flex-wrap:wrap}.bm-next{background:#ffb20b;color:#164b82}.bm-prev{background:white;color:#245a89}.bm-prev:disabled{opacity:.35}.bm-stars,.bm-reward-text{position:fixed;left:50%;z-index:9999;pointer-events:none}.bm-stars{top:48%;transform:translate(-50%,-50%) scale(0);font-size:78px}.bm-stars.show{animation:bmStar 1.5s ease forwards}@keyframes bmStar{0%{transform:translate(-50%,-50%) scale(.2);opacity:0}40%{transform:translate(-50%,-50%) scale(1.5);opacity:1}100%{transform:translate(-50%,-70%) scale(1);opacity:0}}.bm-reward-text{top:60%;transform:translate(-50%,-50%) scale(0);background:white;color:#1f8d38;font-size:28px;font-weight:900;padding:14px 28px;border-radius:30px}.bm-reward-text.show{animation:bmReward 1.5s ease forwards}@keyframes bmReward{0%{transform:translate(-50%,-50%) scale(.4);opacity:0}35%{transform:translate(-50%,-50%) scale(1.1);opacity:1}100%{transform:translate(-50%,-60%) scale(1);opacity:0}}.bm-empty{text-align:center;padding:40px;font-weight:700}
@media(max-width:768px){.bm-app{padding:14px;border-radius:20px}.bm-header{justify-content:center}.bm-main{grid-template-columns:1fr;gap:18px}.bm-scene{min-height:350px}.bm-character{max-width:430px}.bm-small-bubble{top:20px;right:15px;font-size:21px;padding:10px 16px}.bm-title-card h1{font-size:58px}#bm-instruction{font-size:18px}.bm-bubble{font-size:20px;padding:20px}.bm-bubble strong{font-size:30px}.bm-actions{flex-direction:column}.bm-actions button{width:100%}.bm-bottom{flex-direction:column}.bm-parent{width:100%}.bm-nav-actions{width:100%}.bm-next,.bm-prev{flex:1}}