:root{--bg: #f4f7fb;--card: #ffffff;--text: #2c3e50;--muted: #6b7a8f;--primary: #4a90a4;--primary-dark: #3a7788;--reading: #6fb3a8;--math: #e0a458;--correct: #4caf80;--hint: #f0b95a;--hint-bg: #fdf3e0;--border: #dfe6ee;--radius: 20px}*{box-sizing:border-box}@keyframes fadeInUp{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@keyframes popIn{0%{transform:scale(.85);opacity:0}60%{transform:scale(1.06);opacity:1}to{transform:scale(1)}}@keyframes bounceIn{0%{transform:scale(.3);opacity:0}50%{transform:scale(1.08);opacity:1}70%{transform:scale(.95)}to{transform:scale(1)}}@keyframes shake{10%,90%{transform:translate(-2px)}20%,80%{transform:translate(4px)}30%,50%,70%{transform:translate(-8px)}40%,60%{transform:translate(8px)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes pulseRing{0%{box-shadow:0 0 #4a90a473}to{box-shadow:0 0 0 14px #4a90a400}}@keyframes dotPop{0%{transform:scale(.6)}60%{transform:scale(1.35)}to{transform:scale(1)}}@keyframes confettiFall{0%{transform:translateY(-20px) rotate(0);opacity:1}to{transform:translateY(90px) rotate(360deg);opacity:0}}html,body,#root{height:100%}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:20px;line-height:1.5;overflow-x:hidden;-webkit-font-smoothing:antialiased}img,svg{max-width:100%}button{font-family:inherit;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation}button:disabled{cursor:not-allowed;opacity:.5}.btn-home,.speed-btn{min-height:44px}.app-header{position:fixed;top:0;left:0;z-index:50;display:flex;justify-content:flex-start;padding:20px 16px 8px 24px;padding-top:max(20px,env(safe-area-inset-top));padding-left:max(24px,env(safe-area-inset-left));pointer-events:none}.app-logo{height:175px;width:auto;display:block}.app-menu{position:fixed;top:0;right:0;z-index:50;padding:20px 24px 8px 16px;padding-top:max(20px,env(safe-area-inset-top));padding-right:max(24px,env(safe-area-inset-right))}.app-menu-link{display:inline-flex;align-items:center;gap:6px;background:var(--card);border:2px solid var(--border);border-radius:14px;padding:10px 16px;font-size:.95rem;font-weight:600;color:var(--primary-dark);text-decoration:none;box-shadow:0 2px 10px #0000000f;transition:transform .12s ease,border-color .15s ease}.app-menu-link:hover{border-color:var(--primary);transform:translateY(-1px)}.app-menu-link:active{transform:scale(.97)}.home{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;min-height:100dvh;padding:32px;padding-top:max(32px,env(safe-area-inset-top));padding-bottom:max(32px,env(safe-area-inset-bottom));padding-left:max(32px,env(safe-area-inset-left));padding-right:max(32px,env(safe-area-inset-right));text-align:center}.floating-bg{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;pointer-events:none;z-index:0}.floating-item{position:absolute;top:-10%;opacity:0;animation-name:floatDrift;animation-timing-function:ease-in-out;animation-iteration-count:infinite}@keyframes floatDrift{0%{transform:translateY(0) translate(0) rotate(0);opacity:0}10%{opacity:.45}50%{transform:translateY(55vh) translate(var(--drift)) rotate(12deg)}90%{opacity:.45}to{transform:translateY(115vh) translate(calc(var(--drift) * -1)) rotate(-12deg);opacity:0}}@media (prefers-reduced-motion: reduce){.floating-item{animation:none;opacity:.2}}.home h1,.grade-select-subtitle,.home-buttons,.grade-grid,.progress-summary{position:relative;z-index:1}.home h1{font-size:2.6rem;margin-bottom:10px;color:var(--primary-dark)}.grade-select-subtitle{font-size:1.15rem;color:var(--muted);margin:0 0 40px}.home-buttons{display:flex;gap:32px;flex-wrap:wrap;justify-content:center}.btn-big{font-size:1.6rem;padding:40px 56px;border:none;border-radius:var(--radius);color:#fff;box-shadow:0 6px #00000014;transition:transform .15s ease,box-shadow .15s ease;animation:fadeInUp .5s ease both,float 3.2s ease-in-out .5s infinite}.btn-big:nth-of-type(2){animation-delay:.1s,.6s}.btn-big:hover{transform:translateY(-6px) scale(1.03);box-shadow:0 10px #00000014;animation-play-state:paused,paused}.btn-big:active{transform:translateY(-1px) scale(.98)}.btn-reading{background:var(--reading)}.btn-math{background:var(--math)}.progress-summary{margin-top:48px;color:var(--muted);font-size:1.1rem}.grade-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:20px;max-width:720px;width:100%}.btn-grade{font-size:1.2rem;font-weight:600;padding:28px 16px;border:none;border-radius:var(--radius);color:#fff;background:var(--primary);box-shadow:0 6px #00000014;transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease;animation:fadeInUp .4s ease both}.btn-grade:hover{transform:translateY(-4px) scale(1.03);background:var(--primary-dark);box-shadow:0 10px #00000014}.btn-grade:active{transform:translateY(-1px) scale(.98)}.btn-change-grade{position:absolute;top:72px;right:24px}.home{position:relative}.activity-page{max-width:760px;margin:0 auto;padding:24px 24px 64px;padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}.btn-home{background:none;border:2px solid var(--border);border-radius:14px;padding:10px 18px;font-size:1rem;color:var(--muted)}.activity-toolbar{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:12px;margin-bottom:16px;margin-top:48px}.btn-secondary{background:var(--card);border:2px solid var(--primary);border-radius:14px;padding:10px 18px;font-size:1rem;color:var(--primary-dark);font-weight:600;transition:transform .12s ease,background-color .15s ease}.btn-secondary:hover{background:#eef6f8;transform:translateY(-1px)}.btn-secondary:active{transform:scale(.97)}.item-picker{background:var(--card);border-radius:var(--radius);padding:24px;box-shadow:0 2px 10px #0000000d;animation:fadeInUp .35s ease both}.item-picker-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.item-picker-header h3{margin:0;color:var(--primary-dark);font-size:1.4rem}.item-picker-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(48px,1fr));gap:10px;max-height:60vh;overflow-y:auto;padding:2px}.item-btn{min-height:44px;border:2px solid var(--border);border-radius:12px;background:var(--bg);color:var(--text);font-size:1rem;font-weight:600;transition:transform .12s ease,border-color .15s ease,background-color .15s ease}.item-btn:hover{transform:translateY(-2px);border-color:var(--primary)}.item-btn-done{background:#e6f6ee;border-color:var(--correct);color:var(--correct)}.comm-subtitle{color:var(--muted);margin:-8px 0 20px;text-align:center}.comm-category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px;margin-bottom:40px}.comm-category-card{border:none;border-radius:var(--radius);padding:22px 16px;display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;box-shadow:0 2px 10px #0000000f;transition:transform .15s ease,box-shadow .15s ease;color:var(--text)}.comm-category-card:hover{transform:translateY(-3px);box-shadow:0 8px 16px #0000001a}.comm-category-card:active{transform:scale(.97)}.comm-category-icon{font-size:2.4rem;line-height:1}.comm-category-label{font-weight:700;font-size:1.05rem}.comm-category-desc{font-size:.82rem;color:var(--muted)}.comm-item-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px;margin-bottom:24px}.comm-item-tile{background:var(--card);border:2px solid var(--border);border-radius:var(--radius);padding:18px 10px;display:flex;flex-direction:column;align-items:center;gap:8px;min-height:100px;transition:transform .15s ease,border-color .15s ease,background-color .15s ease}.comm-item-tile:hover{transform:translateY(-2px);border-color:var(--primary)}.comm-item-tile:active{transform:scale(.96)}.comm-item-active{background:#eef6f8;border-color:var(--primary);animation:popIn .3s ease}.comm-item-icon{font-size:2rem;line-height:1}.comm-item-text{font-weight:600;font-size:.95rem;text-align:center}.comm-quickboard{border-top:2px dashed var(--border);padding-top:24px;margin-top:8px}.comm-quickboard h3{color:var(--primary-dark);margin:0 0 16px;font-size:1.2rem}.comm-quickboard-grid .comm-item-tile{background:var(--bg)}.comm-subtitle-left{text-align:left;margin:0 0 16px}.comm-conversations{border-top:2px dashed var(--border);border-bottom:2px dashed var(--border);padding:24px 0;margin-bottom:32px}.comm-conversations h3{color:var(--primary-dark);margin:0 0 4px;font-size:1.3rem}.comm-conversation-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:16px}.comm-conversation-card{border:none;border-radius:var(--radius);padding:22px 16px;display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;box-shadow:0 2px 10px #0000000f;transition:transform .15s ease,box-shadow .15s ease;color:var(--text)}.comm-conversation-card:hover{transform:translateY(-3px);box-shadow:0 8px 16px #0000001a}.comm-conversation-card:active{transform:scale(.97)}.convo-player{animation:fadeInUp .3s ease both}.convo-bubble-row{display:flex;align-items:flex-start;gap:16px;margin:20px 0 24px}.convo-avatar{font-size:3rem;line-height:1;flex-shrink:0;background:var(--card);border-radius:50%;width:76px;height:76px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px #0000000f}.convo-bubble{background:var(--card);border-radius:var(--radius);border-top-left-radius:4px;padding:18px 22px;box-shadow:0 2px 10px #0000000f;flex:1;animation:popIn .3s ease}.convo-speaker{display:block;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:4px}.convo-bubble p{margin:0;font-size:1.25rem;font-weight:600;line-height:1.9}.convo-instruction{text-align:center;color:var(--muted);font-weight:600;margin:0 0 14px}.convo-response-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;max-width:640px;margin:0 auto}.convo-response{min-height:90px;height:auto;padding-top:14px;padding-bottom:14px}.convo-bubble-speaking,.convo-response-speaking{background-color:var(--hint-bg);box-shadow:0 0 0 3px var(--hint) inset}.convo-celebration{margin-top:8px}.convo-finish-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:20px}@media (max-width: 480px){.comm-category-grid,.comm-item-grid,.comm-conversation-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}.comm-category-icon{font-size:1.9rem}.comm-item-icon{font-size:1.6rem}.convo-avatar{width:58px;height:58px;font-size:2.2rem}.convo-bubble p{font-size:1.05rem}}.activity-page h2{color:var(--primary-dark);font-size:1.8rem;text-align:center}.passage-display{background:var(--card);border-radius:var(--radius);padding:28px;margin-bottom:24px;box-shadow:0 2px 10px #0000000d;animation:fadeInUp .35s ease both}.passage-text{font-size:1.6rem;line-height:1.8;margin:0 0 20px}.sentence-unit{display:inline;border-radius:10px;padding:2px 4px;margin:-2px -4px;cursor:pointer;transition:background-color .2s ease,box-shadow .2s ease}.sentence-unit:hover{background-color:#eef6f8}.sentence-unit:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.sentence-active{background-color:var(--hint-bg);box-shadow:0 0 0 2px var(--hint) inset}.word-wrap{display:inline-flex;flex-direction:column;align-items:center;vertical-align:bottom}.aac-symbol{font-size:1.15rem;line-height:1;margin-bottom:2px}.word{transition:background-color .15s ease,transform .15s ease;border-radius:6px;padding:2px 1px;display:inline-block}.word-active{background-color:#fff2b8;transform:scale(1.08)}.btn-play{background:var(--primary);color:#fff;border:none;border-radius:14px;padding:14px 24px;font-size:1.1rem;transition:transform .15s ease}.btn-play:hover:not(:disabled){transform:translateY(-2px)}.btn-play:active:not(:disabled){transform:scale(.96)}.btn-play.is-speaking{animation:pulseRing 1.4s ease-out infinite}.playback-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.speed-control{display:flex;gap:8px}.speed-btn{background:var(--bg);border:2px solid var(--border);border-radius:12px;padding:8px 14px;font-size:.95rem;color:var(--muted);transition:transform .12s ease,border-color .15s ease,background-color .15s ease,color .15s ease}.speed-btn:hover:not(:disabled){transform:translateY(-1px);border-color:var(--primary)}.speed-btn:active:not(:disabled){transform:scale(.95)}.speed-btn-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}.btn-play:hover{background:var(--primary-dark)}.tts-warning{color:var(--muted);font-size:.95rem;margin-top:10px}.progress-dots{display:flex;gap:10px;justify-content:center;margin-bottom:20px}.dot{width:14px;height:14px;border-radius:50%;background:var(--border);transition:background-color .25s ease,transform .25s ease}.dot-done{background:var(--correct);animation:dotPop .3s ease}.dot-current{background:var(--primary);transform:scale(1.2)}.question-card{background:var(--card);border-radius:var(--radius);padding:28px;box-shadow:0 2px 10px #0000000d;animation:fadeInUp .35s ease both}.question-prompt-row{display:flex;align-items:center;gap:12px;margin-bottom:20px}.question-prompt-row .btn-play{flex-shrink:0;padding:8px 14px;font-size:.95rem}.question-prompt{font-size:1.4rem;margin:0;font-weight:600;min-width:0;overflow-wrap:break-word}.options{display:flex;flex-direction:column;gap:14px;margin-bottom:24px}.option{display:flex;align-items:center;gap:14px;padding:16px 20px;border:2px solid var(--border);border-radius:16px;font-size:1.2rem;transition:border-color .15s ease,background-color .15s ease,transform .15s ease}.option input[type=radio]{flex-shrink:0}.option-text{min-width:0;overflow-wrap:break-word;flex:1}.option-speak{flex-shrink:0;background:none;border:2px solid var(--border);border-radius:10px;width:40px;height:40px;font-size:1.1rem;color:var(--muted);transition:transform .12s ease,border-color .15s ease,background-color .15s ease}.option-speak:hover{border-color:var(--primary);background:#eef6f8;transform:scale(1.05)}.option-speak:active{transform:scale(.95)}.option:hover:not(.option-disabled){transform:translate(2px)}.option input[type=radio]{width:24px;height:24px;accent-color:var(--primary)}.option-selected{border-color:var(--primary);background-color:#eef6f8;transform:scale(1.015)}.option-disabled{opacity:.45}.option-wrong{animation:shake .4s ease;border-color:#e08a8a}.btn-primary{background:var(--primary);color:#fff;border:none;border-radius:14px;padding:16px 32px;font-size:1.2rem;width:100%;transition:transform .12s ease,background-color .15s ease}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-primary:active:not(:disabled){transform:scale(.97)}.feedback{border-radius:14px;padding:16px 20px;margin-bottom:20px;font-size:1.15rem}.feedback-correct{background:#e6f6ee;color:var(--correct);font-weight:600;animation:popIn .35s ease}.feedback-hint{background:var(--hint-bg);color:#8a6a1e;animation:fadeInUp .25s ease}.celebration{text-align:center;font-size:1.6rem;padding:40px;color:var(--correct);font-weight:600;animation:bounceIn .55s ease;position:relative}.celebration:before,.celebration:after{content:"🎉";position:absolute;top:0;font-size:1.4rem;animation:confettiFall 1.2s ease-in infinite}.celebration:before{left:20%;animation-delay:.1s}.celebration:after{right:20%;animation-delay:.4s}.loading{text-align:center;padding:80px 20px;color:var(--muted);font-size:1.3rem}.large-text.home h1{font-size:3.1rem}.large-text .btn-big{font-size:1.9rem;padding:44px 60px}.large-text .progress-summary{font-size:1.35rem}.large-text .btn-secondary,.large-text .btn-home{font-size:1.15rem}.large-text.activity-page h2{font-size:2.2rem}.large-text .passage-text{font-size:2rem}.large-text .aac-symbol{font-size:1.4rem}.large-text .question-prompt{font-size:1.75rem}.large-text .option{font-size:1.5rem;padding:20px 24px}.large-text .option-speak{width:48px;height:48px;font-size:1.3rem}.large-text .btn-primary{font-size:1.5rem;padding:18px 32px}.large-text .celebration{font-size:1.9rem}.large-text .item-btn{font-size:1.3rem;min-height:56px}@media (max-width: 480px){.large-text.home h1{font-size:2.3rem}.large-text .btn-big{padding:28px 36px;font-size:1.5rem}.large-text.activity-page h2{font-size:1.8rem}.large-text .passage-text{font-size:1.6rem}.large-text .question-prompt{font-size:1.4rem}.large-text .option{font-size:1.25rem;padding:16px 18px}}.intro-page{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;min-height:100dvh;padding:32px;padding-top:max(32px,env(safe-area-inset-top));padding-bottom:max(32px,env(safe-area-inset-bottom));text-align:center;overflow:hidden;background:linear-gradient(160deg,var(--bg) 0%,#eaf3f5 100%)}.intro-logo{position:relative;z-index:1;width:min(260px,60vw);height:auto;animation:introLogoIn .9s cubic-bezier(.34,1.56,.64,1) both}.intro-tagline{position:relative;z-index:1;font-size:1.5rem;font-weight:700;color:var(--primary-dark);margin:24px 0 0;opacity:0;animation:fadeInUp .7s ease .55s both}.intro-subtitle{position:relative;z-index:1;font-size:1.1rem;color:var(--muted);margin:8px 0 0;opacity:0;animation:fadeInUp .7s ease .85s both}.intro-button{position:relative;z-index:1;margin-top:36px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);padding:16px 40px;font-size:1.3rem;font-weight:600;box-shadow:0 6px #00000014;transition:transform .15s ease,box-shadow .15s ease;opacity:0;animation:fadeInUp .7s ease 1.2s both}.intro-button:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 10px #00000014}.intro-button:active{transform:translateY(-1px) scale(.98)}.intro-progress{position:relative;z-index:1;width:160px;height:6px;border-radius:999px;background:var(--border);overflow:hidden;margin-top:24px;opacity:0;animation:fadeInUp .7s ease 1.2s both}.intro-progress-fill{height:100%;width:0%;background:var(--primary);border-radius:999px;animation-name:introProgress;animation-timing-function:linear;animation-fill-mode:forwards}@keyframes introLogoIn{0%{transform:scale(.4) rotate(-8deg);opacity:0}60%{transform:scale(1.08) rotate(3deg);opacity:1}to{transform:scale(1) rotate(0);opacity:1}}@keyframes introProgress{0%{width:0%}to{width:100%}}@media (prefers-reduced-motion: reduce){.intro-logo,.intro-tagline,.intro-subtitle,.intro-button,.intro-progress{animation:none;opacity:1}}.question-prompt,.passage-text,.home h1{overflow-wrap:break-word}@media (min-width: 600px) and (max-width: 900px){.grade-grid{max-width:640px}}@media (max-width: 480px){body{font-size:18px}.app-header{padding:16px 12px 6px 16px;padding-top:max(16px,env(safe-area-inset-top));padding-left:max(16px,env(safe-area-inset-left))}.app-logo{height:125px}.app-menu{padding:16px 16px 6px 12px;padding-top:max(16px,env(safe-area-inset-top));padding-right:max(16px,env(safe-area-inset-right))}.app-menu-link{padding:8px 12px;font-size:.85rem}.home{padding:20px}.home h1{font-size:1.9rem;margin-bottom:8px}.grade-select-subtitle{font-size:1.02rem;margin-bottom:28px}.home-buttons{gap:20px}.btn-big{padding:24px 32px;font-size:1.3rem}.grade-grid{gap:12px}.btn-grade{padding:20px 12px;font-size:1.05rem}.btn-change-grade{top:max(64px,calc(env(safe-area-inset-top) + 48px));right:max(16px,env(safe-area-inset-right))}.activity-page{padding:16px 16px 40px;padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}.activity-page h2{font-size:1.5rem}.passage-display,.question-card{padding:18px}.passage-text{font-size:1.3rem}.question-prompt{font-size:1.2rem}.option{padding:14px 16px;font-size:1.05rem}.celebration{padding:24px;font-size:1.3rem}.playback-row{gap:10px}}@media (max-width: 360px){.home h1{font-size:1.6rem}.btn-big{padding:20px 24px;font-size:1.15rem}}@media (max-height: 480px) and (orientation: landscape){.app-header{padding:10px 12px 4px 16px}.app-logo{height:70px}.app-menu{padding:10px 16px 4px 12px}.app-menu-link{padding:6px 10px;font-size:.8rem}.home{justify-content:flex-start;padding-top:16px;min-height:auto}.btn-big{padding:18px 28px;animation:fadeInUp .5s ease both}.home h1{margin-bottom:20px}}.wl-tagline{text-align:center;color:var(--primary-dark);font-weight:600;margin:-8px 0 4px}.wl-subtitle{text-align:center;color:var(--muted);margin:0 0 24px}.wl-section-heading{color:var(--primary-dark);margin:28px 0 12px}.wl-empty{text-align:center;color:var(--muted);padding:40px 20px}.wl-filters{display:flex;flex-wrap:wrap;gap:20px;margin-bottom:28px;background:var(--card);border-radius:var(--radius);padding:18px 20px;box-shadow:0 2px 10px #0000000d}.wl-filter-group{display:flex;flex-direction:column;gap:8px}.wl-filter-label{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.wl-filter-chips{display:flex;flex-wrap:wrap;gap:8px}.wl-chip{background:none;border:2px solid var(--border);border-radius:999px;padding:8px 16px;font-size:.9rem;font-weight:600;color:var(--text);transition:transform .12s ease,border-color .15s ease,background-color .15s ease}.wl-chip:hover{border-color:var(--primary)}.wl-chip:active{transform:scale(.96)}.wl-chip-active{background:var(--primary);border-color:var(--primary);color:#fff}.wl-scenario-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}.wl-scenario-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px #0000000f;transition:transform .15s ease,box-shadow .15s ease}.wl-scenario-card:hover{transform:translateY(-3px);box-shadow:0 8px 16px #0000001a}.wl-scenario-thumb{width:100%;border:none;background:var(--hint-bg);font-size:3.4rem;padding:28px 0;position:relative;line-height:1}.wl-scenario-completed-badge{position:absolute;top:10px;right:12px;background:var(--correct);color:#fff;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1rem}.wl-scenario-body{padding:16px 18px 20px}.wl-scenario-title{font-weight:700;font-size:1.1rem;margin:0 0 4px}.wl-scenario-meta{font-size:.82rem;color:var(--muted);margin:0 0 8px}.wl-scenario-desc{font-size:.92rem;color:var(--text);margin:0 0 16px}.wl-scenario-actions{display:flex;align-items:center;gap:10px}.wl-watch-btn{flex:1}.wl-favorite-btn{background:none;border:2px solid var(--border);border-radius:12px;width:46px;height:46px;font-size:1.3rem;color:var(--muted);flex-shrink:0;transition:transform .12s ease,border-color .15s ease,color .15s ease}.wl-favorite-btn:hover{border-color:var(--hint)}.wl-favorite-btn:active{transform:scale(.92)}.wl-favorite-btn-active{color:#e0637a;border-color:#e0637a}.wl-player{animation:fadeInUp .3s ease both}.wl-video-wrap{position:relative;background:#10222b;border-radius:var(--radius);overflow:hidden;aspect-ratio:16 / 9}.wl-video{width:100%;height:100%;display:block;object-fit:contain;background:#10222b}.wl-video-start-overlay{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:none;background:#10222b8c;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;font-size:1.2rem;font-weight:700}.wl-video-start-icon{font-size:3.2rem;width:84px;height:84px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center}.wl-caption-bar{position:absolute;left:12px;right:12px;bottom:14px;background:#000000b8;color:#fff;padding:10px 16px;border-radius:12px;font-size:1.05rem;text-align:center}.wl-pause-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--card);padding:20px;overflow-y:auto;display:flex;flex-direction:column;justify-content:center}.wl-video-controls{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:16px}.wl-control-btn{background:var(--card);border:2px solid var(--border);border-radius:14px;padding:12px 18px;font-size:1rem;font-weight:600;color:var(--text);transition:transform .12s ease,border-color .15s ease,background-color .15s ease}.wl-control-btn:hover{border-color:var(--primary)}.wl-control-btn:active{transform:scale(.96)}.wl-control-btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.wl-control-btn-active{background:#eef6f8;border-color:var(--primary);color:var(--primary-dark)}.wl-control-volume{display:flex;align-items:center;gap:8px;font-size:1.1rem}.wl-transcript-panel{margin-top:16px;background:var(--card);border-radius:var(--radius);padding:20px 22px;box-shadow:0 2px 10px #0000000d;font-size:1.05rem;line-height:1.7;animation:fadeInUp .25s ease}.wl-pause-think{max-width:560px;margin:0 auto;text-align:center}.wl-see-what-happens{max-width:320px;margin:12px auto 0}.wl-question-count{text-align:center;color:var(--muted);font-weight:600;margin:4px 0 20px}.wl-question{background:var(--card);border-radius:var(--radius);padding:24px;box-shadow:0 2px 10px #0000000d;animation:fadeInUp .3s ease both}.wl-question-prompt-row{display:flex;align-items:flex-start;gap:12px;margin-bottom:20px}.wl-question-prompt{font-size:1.35rem;font-weight:600;margin:0;min-width:0;overflow-wrap:break-word}.wl-option-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:20px}.wl-option-grid-large{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}.wl-option-tile{position:relative;display:flex;flex-direction:column;align-items:center;gap:10px;background:var(--card);border:2px solid var(--border);border-radius:16px;padding:20px 16px;font-size:1.1rem;font-weight:600;min-height:96px;transition:transform .15s ease,border-color .15s ease,background-color .15s ease}.wl-option-tile:hover:not(:disabled){transform:translateY(-2px);border-color:var(--primary)}.wl-option-tile:active:not(:disabled){transform:scale(.97)}.wl-option-grid-large .wl-option-tile{min-height:130px}.wl-option-grid-large .wl-option-icon{font-size:2.6rem}.wl-option-icon{font-size:1.8rem;line-height:1}.wl-option-text{text-align:center}.wl-option-selected{border-color:var(--primary);background-color:#eef6f8}.wl-option-disabled{opacity:.45}.wl-option-speak{position:absolute;top:8px;right:8px;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--muted);border:2px solid var(--border);background:var(--card);font-size:.95rem}.wl-option-speak:hover{border-color:var(--primary);background:#eef6f8}.wl-feedback{margin-top:4px}.wl-checking{text-align:center;color:var(--muted);margin-top:8px}.wl-practice-stage{background:var(--card);border-radius:var(--radius);padding:28px;box-shadow:0 2px 10px #0000000d;animation:fadeInUp .3s ease both}.wl-practice-lead{color:var(--muted);margin:0 0 6px;text-align:center}.wl-practice-phrase-text{font-size:1.5rem;font-weight:700;color:var(--primary-dark);text-align:center;margin:0 0 22px}.wl-practice-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:20px}.wl-practice-type,.wl-practice-build{max-width:480px;margin:0 auto 20px}.wl-text-input{width:100%;font-size:1.15rem;padding:14px 18px;border:2px solid var(--border);border-radius:14px;color:var(--text)}.wl-text-input:focus{outline:none;border-color:var(--primary)}.wl-build-slots{min-height:64px;border:2px dashed var(--border);border-radius:14px;padding:12px;display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}.wl-build-placeholder{color:var(--muted);align-self:center}.wl-build-bank{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.wl-build-tile{background:var(--card);border:2px solid var(--primary);color:var(--primary-dark);border-radius:12px;padding:10px 16px;font-size:1.05rem;font-weight:600;transition:transform .12s ease}.wl-build-tile:active{transform:scale(.95)}.wl-build-tile-correct{border-color:var(--correct);color:var(--correct)}.wl-text-reset{display:block;margin:4px auto 0;background:none;border:none;color:var(--muted);font-size:.95rem;text-decoration:underline}.wl-next-btn{max-width:320px;margin:20px auto 0;display:block}.wl-complete{text-align:center}.wl-celebration:before,.wl-celebration:after{content:none}.wl-recap{max-width:420px;margin:0 auto 24px;text-align:left;background:var(--card);border-radius:var(--radius);padding:20px 24px;box-shadow:0 2px 10px #0000000d}.wl-recap-title{font-weight:700;color:var(--primary-dark);margin:0 0 8px}.wl-recap ul{margin:0;padding-left:20px}.wl-complete-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.wl-progress{margin-top:36px}.wl-progress-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin-bottom:24px}.wl-stat{background:var(--card);border-radius:var(--radius);padding:20px;text-align:center;box-shadow:0 2px 10px #0000000d}.wl-stat-value{display:block;font-size:1.7rem;font-weight:700;color:var(--primary-dark)}.wl-stat-label{font-size:.85rem;color:var(--muted)}.wl-progress-categories{display:flex;flex-direction:column;gap:10px}.wl-progress-category-row{display:flex;align-items:center;gap:12px}.wl-progress-category-label{width:150px;flex-shrink:0;font-size:.9rem;color:var(--text)}.wl-progress-bar-track{flex:1;height:10px;border-radius:999px;background:var(--border);overflow:hidden}.wl-progress-bar-fill{height:100%;background:var(--primary);border-radius:999px;transition:width .3s ease}.wl-progress-category-pct{width:40px;flex-shrink:0;text-align:right;font-size:.85rem;color:var(--muted)}@media (max-width: 480px){.wl-scenario-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.wl-video-controls{justify-content:center}.wl-progress-category-label{width:100px}}.lb-lesson{animation:fadeInUp .3s ease both}.lb-topic-search{max-width:420px;margin:0 auto 20px;display:block}.lb-lesson-card{position:relative;text-align:left;padding:18px;cursor:pointer}.lb-lesson-badge{top:10px;right:10px;width:26px;height:26px;font-size:.9rem}.lb-vocabulary{margin-top:28px}.lb-vocabulary-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:10px}.lb-vocab-item{background:var(--card);border-radius:16px;padding:14px 16px;box-shadow:0 2px 10px #0000000d}.lb-vocab-word-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:4px}.lb-vocab-word-row .btn-play{padding:6px 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#ffffff0f}.lb-board-letters{display:flex;flex-direction:column;gap:10px;background:linear-gradient(160deg,#2a2a2e,#17171a)}.lb-board-row{display:flex;gap:10px;justify-content:center}.lb-board-numbers{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;background:linear-gradient(160deg,#f2ecdf,#e6ddc8)}.lb-letter-btn{aspect-ratio:1;width:100%;max-width:68px;min-width:44px;border:none;border-radius:12px;font-size:1.5rem;font-weight:800;transition:transform .12s ease,box-shadow .15s ease,filter .15s ease}.lb-board-letters .lb-letter-btn{background:linear-gradient(160deg,#3a3a40,#1c1c20);color:#f5f5f5;box-shadow:0 3px #00000080,0 4px 8px #00000059}.lb-board-numbers .lb-letter-btn{background:linear-gradient(160deg,#fff,#dcd3ba);color:#1c3f8f;box-shadow:0 3px #0000002e,0 4px 8px #0000001f}.lb-letter-btn:hover:not(:disabled){transform:translateY(-2px);filter:brightness(1.12)}.lb-letter-btn:active:not(:disabled){transform:translateY(1px) scale(.96)}.lb-letter-btn:focus-visible{outline:3px solid var(--primary);outline-offset:2px}.lb-letter-highlighted{background:linear-gradient(160deg,#ffe28a,#ffb703)!important;color:#3a2200!important;box-shadow:0 0 0 4px #fff inset,0 0 20px 4px #ffb703;animation:lb-hint-pulse 1s ease-in-out infinite}@keyframes lb-hint-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}.lb-board-toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px;margin-bottom:14px}.lb-board-picker{display:flex;gap:10px}.lb-board-option{display:flex;align-items:center;gap:8px;padding:6px 12px 6px 6px;border:2px solid var(--border);border-radius:999px;background:var(--card);font-weight:700;font-size:.9rem;color:var(--text);transition:border-color .15s ease,transform .12s ease}.lb-board-option:hover{transform:translateY(-1px)}.lb-board-option-active{border-color:var(--primary);background:var(--hint-bg)}.lb-board-thumb{width:30px;height:30px;border-radius:8px;object-fit:cover}.lb-hint-btn{background:var(--hint-bg);border:2px solid var(--hint);border-radius:999px;padding:8px 18px;font-weight:700;font-size:.95rem;color:var(--text);transition:transform .12s ease}.lb-hint-btn:hover{transform:translateY(-1px)}.lb-response-wrong{border-bottom-color:#d62828;color:#d62828;background:#ffe5e5}.lb-hint-wrong{color:#b3261e}.lb-keyboard-note{text-align:center;font-size:.85rem;opacity:.7;margin:0 0 8px}.lb-hint-text{text-align:center;font-weight:700;margin:-6px 0 14px;color:var(--primary-dark)}.lb-color-badge{display:table;margin:0 auto 10px;padding:5px 14px;border-radius:999px;font-size:.78rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase}.lb-color-green{background:#e3f6e6;color:#1f7a37}.lb-color-orange{background:#fdead2;color:#b0590a}.lb-color-blue{background:#e1ecff;color:#1d4fa3}.lb-color-red{background:#fde2e2;color:#b02323}.lb-color-purple{background:#efe3fa;color:#6b2fa0}.lb-color-pink{background:#fde3ef;color:#b01e69}.lb-question-text.lb-question-green{color:#1f7a37}.lb-question-text.lb-question-orange{color:#b0590a}.lb-question-text.lb-question-blue{color:#1d4fa3}.lb-question-text.lb-question-red{color:#b02323}.lb-question-text.lb-question-purple{color:#6b2fa0}.lb-question-text.lb-question-pink{color:#b01e69}.lb-help{background:var(--card);border-radius:var(--radius);box-shadow:0 2px 10px #0000000d;margin:0 0 20px;overflow:hidden}.lb-help-toggle{width:100%;text-align:left;padding:14px 18px;font-weight:700;font-size:1rem;color:var(--primary-dark);background:none}.lb-help-body{padding:4px 20px 20px;animation:fadeInUp .2s ease both}.lb-help-steps{margin:0 0 16px;padding-left:22px;display:flex;flex-direction:column;gap:8px}.lb-help-colors{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}.lb-help-chip{padding:6px 12px;border-radius:999px;font-size:.85rem;font-weight:700}.lb-help-link{font-weight:700;color:var(--primary)}.lb-feedback{text-align:center}.lb-feedback-answer{font-size:1.2rem;font-weight:700;color:var(--primary-dark);margin:0 0 12px}.lb-feedback-box{display:inline-block}.lb-continue-btn{max-width:320px;margin:20px auto 0;display:block}.lb-feedback-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:20px}.lb-feedback-actions .lb-continue-btn{margin:0}.lb-summary-topic{font-weight:700;color:var(--primary-dark);margin:0 0 10px}.lb-summary-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin-bottom:20px}.lb-prompt-breakdown{background:var(--card);border-radius:var(--radius);padding:16px 20px;margin-bottom:20px;box-shadow:0 2px 10px #0000000d}.lb-prompt-breakdown p{margin:4px 0}.lb-prompt-usage{margin-top:16px}.lb-summary-note{font-size:.85rem;color:var(--muted);max-width:480px;margin:0 auto 20px;text-align:center}@media (max-width: 480px){.lb-board{padding:14px 8px}.lb-board-row,.lb-board-numbers{gap:6px}.lb-letter-btn{max-width:none;min-width:0;font-size:1.1rem}.lb-response-slot{width:34px;height:42px;font-size:1.4rem}}.em-page{--em-purple: #6f63c9;--em-purple-dark: #564ea3;--em-teal: #2fa89e;--em-purple-wash: #efedfa;--em-teal-wash: #e6f6f4}.em-onboard-step{max-width:640px;margin:0 auto;animation:fadeInUp .3s ease both}.em-welcome{text-align:center;padding-top:20px}.em-brand-title{font-size:2.8rem;background:linear-gradient(135deg,var(--em-purple),var(--em-teal));-webkit-background-clip:text;background-clip:text;color:transparent;margin:0 0 6px}.em-brand-tagline{font-size:1.2rem;color:var(--em-purple-dark);margin:0 0 4px;font-style:normal}.em-brand-tagline em{font-style:normal;font-weight:700}.em-brand-by{color:var(--muted);font-size:.85rem;margin:0 0 24px}.em-welcome-copy{max-width:480px;margin:0 auto 28px;color:var(--text);font-size:1.05rem;line-height:1.7}.em-cta{background:linear-gradient(135deg,var(--em-purple),var(--em-teal));border:none;max-width:320px;margin:0 auto;display:block}.em-field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;font-weight:600;color:var(--text)}.em-field-label{font-weight:700;color:var(--em-purple-dark);margin:20px 0 10px}.em-age-slider{accent-color:var(--em-purple)}.em-avatar-grid{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:10px}.em-avatar-btn{width:56px;height:56px;border-radius:50%;border:2px solid var(--border);background:var(--card);font-size:1.6rem}.em-avatar-selected{border-color:var(--em-purple);background:var(--em-purple-wash)}.em-chip-grid{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:6px}.em-step-actions{display:flex;justify-content:space-between;gap:12px;margin-top:28px}.em-placement{max-width:620px;margin:0 auto;text-align:center}.em-placement-copy{color:var(--muted);margin:0 0 20px}.em-placement-progress{color:var(--em-purple-dark);font-weight:700;margin-bottom:16px}.em-question-card{background:var(--card);border-radius:var(--radius);padding:28px;box-shadow:0 2px 10px #0000000f}.em-skip-btn{display:block;margin:16px auto 0;background:none;border:none;color:var(--muted);text-decoration:underline;font-size:.9rem}.em-recommendation{text-align:center;max-width:480px;margin:0 auto}.em-confetti{font-size:2rem;margin:0}.em-recommend-badge{width:110px;height:110px;border-radius:50%;background:linear-gradient(135deg,var(--em-purple),var(--em-teal));color:#fff;font-size:2.6rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:12px auto}.em-recommend-stage{font-weight:700;color:var(--em-purple-dark);font-size:1.2rem;margin:0 0 20px}.em-recommend-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}.em-recommend-actions .btn-primary,.em-recommend-actions .btn-secondary{width:100%}.em-parent-choose{display:flex;gap:8px;margin-top:8px}.em-shell{padding-top:88px;padding-bottom:84px;max-width:900px}.em-appbar{position:fixed;top:0;left:0;right:0;z-index:40;display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:14px 20px;padding-top:max(14px,env(safe-area-inset-top));padding-right:190px;padding-right:max(190px,calc(env(safe-area-inset-right) + 180px));background:var(--card);border-bottom:1px solid var(--border)}.em-appbar-menu{font-size:1.3rem;color:var(--em-purple-dark)}.em-appbar-brand{font-family:inherit;font-weight:700;font-size:1.15rem;background:linear-gradient(135deg,var(--em-purple),var(--em-teal));-webkit-background-clip:text;background-clip:text;color:transparent}.em-appbar-right{margin-left:auto;display:flex;align-items:center;gap:10px}.em-appbar-back,.em-appbar-exit{padding:8px 14px;font-size:.88rem}.em-appbar-avatar{font-size:1.5rem;width:38px;height:38px;border-radius:50%;background:var(--em-purple-wash);display:flex;align-items:center;justify-content:center}.em-shell-body{min-height:50vh}.em-bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:40;display:flex;background:var(--card);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom)}.em-bottom-nav button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;background:none;border:none;padding:10px 4px 8px;font-size:.72rem;font-weight:600;color:var(--muted)}.em-bottom-nav button span:first-child{font-size:1.25rem}.em-nav-active{color:var(--em-purple-dark)!important}.em-home-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:20px}.em-home-header h2{margin:0 0 4px;color:var(--em-purple-dark)}.em-home-sub{color:var(--muted);margin:0}.em-home-stats{display:flex;gap:8px;flex-shrink:0}.em-stat-pill{background:var(--em-teal-wash);color:var(--em-teal);font-weight:700;padding:6px 14px;border-radius:999px;font-size:.95rem}.em-level-card{display:block;width:100%;text-align:left;background:linear-gradient(135deg,var(--em-purple-wash),var(--em-teal-wash));border:none;border-radius:var(--radius);padding:20px 24px;margin-bottom:24px;box-shadow:0 2px 10px #0000000f}.em-level-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.em-level-card-num{font-weight:700;color:var(--em-purple-dark);font-size:1.15rem}.em-level-card-view{color:var(--em-teal);font-weight:600;font-size:.88rem}.em-level-card-stage{margin:0 0 10px;color:var(--text);font-weight:600}.em-level-card-count{margin:8px 0 0;color:var(--muted);font-size:.85rem}.em-activity-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}.em-activity-card{display:flex;flex-direction:column;align-items:center;gap:10px;background:var(--card);border:2px solid var(--border);border-radius:var(--radius);padding:22px 14px;font-weight:600;color:var(--text);transition:transform .15s ease,border-color .15s ease}.em-activity-card:hover{border-color:var(--em-purple);transform:translateY(-2px)}.em-activity-card-icon{font-size:2rem}.em-stage-row{margin-bottom:28px}.em-stage-header{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;margin-bottom:10px}.em-stage-num{background:var(--em-purple);color:#fff;font-weight:700;font-size:.78rem;padding:4px 10px;border-radius:999px}.em-stage-title{font-weight:700;color:var(--em-purple-dark)}.em-stage-range{color:var(--muted);font-size:.85rem}.em-level-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(56px,1fr));gap:8px}.em-level-node{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 4px;border-radius:12px;border:2px solid 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#3a778829}.activity-card-icon{font-size:2rem;line-height:1}.activity-card-title{font-size:1.15rem;font-weight:700;color:var(--primary-dark)}.activity-card-desc{font-size:.9rem;color:var(--muted);line-height:1.35}.subject-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,320px));justify-content:center;gap:24px;width:100%;position:relative;z-index:1}.subject-card{display:flex;flex-direction:column;align-items:flex-start;gap:8px;text-align:left;padding:28px;border:none;border-radius:var(--radius);color:#fff;font-family:inherit;box-shadow:0 6px #00000014;transition:transform .15s ease,box-shadow .15s ease}.subject-card:hover{transform:translateY(-5px);box-shadow:0 11px #00000014}.subject-reading{background:var(--reading)}.subject-math{background:var(--math)}.subject-card-icon{font-size:2.6rem;line-height:1}.subject-card-title{font-size:1.7rem;font-weight:700}.subject-card-desc{font-size:1rem;opacity:.95}.subject-progress{width:100%;margin-top:10px}.subject-progress-bar,.lb-progress-bar{height:10px;border-radius:999px;background:#0000001f;overflow:hidden}.subject-progress-bar span,.lb-progress-bar span{display:block;height:100%;border-radius:999px;background:#fff;transition:width .5s ease}.subject-progress-text{display:block;margin-top:6px;font-size:.9rem;font-weight:600}.comm-convo-search{display:block;max-width:420px;margin:0 0 16px}.comm-show-more{display:block;margin:20px auto 0}.lb-progress{position:sticky;top:0;z-index:5;margin:0 0 16px;padding:10px 14px 12px;background:var(--card);border-radius:14px;box-shadow:0 2px 10px #0000000f}.lb-progress-text{display:flex;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:.85rem;font-weight:700;color:var(--muted)}.lb-progress-bar{background:var(--border)}.lb-progress-bar span{background:linear-gradient(90deg,var(--primary),var(--reading))}.lb-step{animation:fadeInUp .35s ease both}.lb-code-key{margin:0 0 16px;background:var(--card);border-radius:14px;padding:10px 14px;box-shadow:0 2px 10px #0000000d}.lb-code-key-title{cursor:pointer;font-weight:700;font-size:.85rem;color:var(--muted)}.lb-code-key-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.lb-code-key .lb-color-badge{display:inline-block;margin:0}.lb-vocab-word-row{flex-wrap:wrap}.lb-vocab-word-row .btn-play{white-space:nowrap;flex-shrink:0}.lb-sources summary{cursor:pointer}.lb-feedback-tiles{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin:0 0 14px}.lb-feedback-tile{display:inline-flex;align-items:center;justify-content:center;width:42px;height:48px;border-radius:10px;font-size:1.5rem;font-weight:800;animation:bounceIn .45s ease both}.lb-feedback-tile-space{width:18px;background:transparent!important;box-shadow:none!important}.lb-tile-correct{background:#e6f6ee;color:#1f7a37;box-shadow:0 0 0 2px #4caf80 inset}.lb-tile-neutral{background:var(--hint-bg);color:#8a6a1e;box-shadow:0 0 0 2px var(--hint) inset}.lb-session-summary{position:relative}.lb-celebrate{position:absolute;inset:0 0 auto 0;height:100px;overflow:hidden;pointer-events:none}.lb-celebrate span{position:absolute;top:-10px;font-size:1.3rem;animation:confettiFall 1.6s ease-in both}@media (pointer: coarse){.lb-letter-btn{min-width:56px;min-height:56px}}.sentence-active{border-radius:8px}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}html[data-motion=off] *,html[data-motion=off] *:before,html[data-motion=off] *:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}@media (max-width: 480px){.picker .grade-grid{grid-template-columns:repeat(auto-fill,minmax(96px,1fr))}.subject-card{padding:22px}.lb-feedback-tile{width:34px;height:40px;font-size:1.2rem}}.lb-category-select{display:block;max-width:420px;margin:0 auto 20px}