*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f172a;--bg-card: rgba(15, 23, 42, .88);--bg-card-solid: #1e293b;--bg-hover: #334155;--text: #f1f5f9;--text-muted: #94a3b8;--primary: #818cf8;--primary-hover: #a5b4fc;--success: #34d399;--success-bg: rgba(6, 78, 59, .7);--danger: #fb7185;--danger-bg: rgba(76, 29, 46, .7);--warning: #fbbf24;--accent: #67e8f9;--border: #334155;--radius: 16px;--radius-sm: 10px;--glow: 0 0 20px rgba(129, 140, 248, .15);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg)}body{min-height:100vh;line-height:1.7}.app-layout{display:flex;min-height:100vh}.app-main{flex:1;min-width:0}.app{max-width:820px;margin:0 auto;padding:16px;min-height:100vh;position:relative}.sidebar{width:220px;flex-shrink:0;background:var(--bg-card-solid);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto;z-index:50}.sidebar-brand{font-size:1.4rem;font-weight:800;padding:20px 16px 12px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-user{display:flex;align-items:center;gap:10px;padding:8px 16px 16px;border-bottom:1px solid var(--border)}.sidebar-avatar{width:28px;height:28px;border-radius:50%}.sidebar-name{font-size:.8rem;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px;padding:12px 8px}.sidebar-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border:none;background:transparent;color:var(--text-muted);font-size:.9rem;font-family:inherit;border-radius:var(--radius-sm);cursor:pointer;transition:all .15s ease;text-align:left;width:100%}.sidebar-link:hover{background:var(--bg-hover);color:var(--text)}.sidebar-link.active{background:#818cf81f;color:var(--primary-hover);font-weight:600}.sidebar-icon{font-size:1.1rem;flex-shrink:0;width:24px;text-align:center}.sidebar-footer{padding:8px;border-top:1px solid var(--border)}.sidebar-logout:hover{color:var(--danger)}.impersonation-banner{background:linear-gradient(135deg,#7c3aed,#6d28d9);padding:10px 16px;display:flex;flex-direction:column;gap:6px;border-bottom:1px solid rgba(255,255,255,.1)}.impersonation-label{font-size:.75rem;font-weight:600;color:#e0d4ff;letter-spacing:.02em}.impersonation-back{background:#ffffff26;border:1px solid rgba(255,255,255,.2);color:#fff;font-size:.75rem;font-family:inherit;font-weight:600;padding:5px 12px;border-radius:6px;cursor:pointer;transition:all .15s ease;width:fit-content}.impersonation-back:hover{background:#ffffff40}.impersonation-back:disabled{opacity:.5;cursor:not-allowed}.impersonation-banner-mobile{display:none}.sidebar-children{padding:8px;border-top:1px solid var(--border)}.sidebar-children-title{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);padding:4px 12px 8px}.sidebar-child-btn{display:flex;align-items:center;gap:8px;padding:8px 12px;border:none;background:transparent;color:var(--text-muted);font-size:.85rem;font-family:inherit;border-radius:var(--radius-sm);cursor:pointer;transition:all .15s ease;width:100%;text-align:left}.sidebar-child-btn:hover{background:#7c3aed1f;color:#c4b5fd}.sidebar-child-btn:disabled{opacity:.5;cursor:not-allowed}.sidebar-add-dev-child{border:1px dashed var(--border);color:var(--text-muted);font-style:italic;justify-content:center;margin-top:4px}.sidebar-child-avatar{width:22px;height:22px;border-radius:50%}.sidebar-child-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.family-page{padding:20px;max-width:600px;margin:0 auto}.family-page-header{display:flex;align-items:center;gap:16px;margin-bottom:24px}.family-page-title{font-size:1.4rem;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.family-back-btn{background:var(--bg-card);border:1px solid var(--border);color:var(--text);padding:6px 14px;border-radius:var(--radius-sm);cursor:pointer;font-size:.9rem}.family-back-btn:hover{background:var(--bg-hover)}.mobile-nav{display:none}@media(max-width:600px){.sidebar{display:none}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--bg-card-solid);border-top:1px solid var(--border);z-index:100;padding:6px 0 max(6px,env(safe-area-inset-bottom))}.mobile-nav-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 4px;background:transparent;border:none;color:var(--text-muted);font-size:.65rem;font-family:inherit;cursor:pointer;transition:color .15s ease}.mobile-nav-btn:hover,.mobile-nav-btn.active{color:var(--primary-hover)}.mobile-nav-icon{font-size:1.3rem}.mobile-nav-text{font-weight:600}.app-main{padding-bottom:72px}.impersonation-banner-mobile{display:flex;align-items:center;justify-content:space-between;position:fixed;top:0;left:0;right:0;background:linear-gradient(135deg,#7c3aed,#6d28d9);padding:8px 16px;z-index:150}.impersonation-banner-mobile~.app-main{padding-top:44px}}.game-container{position:relative}.game-container[style*=--hero-url]:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background-image:var(--hero-url);background-size:cover;background-position:center;opacity:.12;z-index:-1;pointer-events:none}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes gentleFade{0%,to{opacity:.6}50%{opacity:1}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}@keyframes floatUp{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-50px) scale(1.3)}}@keyframes bonusPop{0%{transform:scale(.5);opacity:0}50%{transform:scale(1.15)}to{transform:scale(1);opacity:1}}.fade-in{animation:fadeIn .3s ease-out}.all-mastered-content{text-align:center;padding:3rem 1rem}.all-mastered-star{font-size:4rem;display:block;margin-bottom:1rem}.all-mastered-content h3{font-size:1.5rem;margin:0 0 .5rem}.all-mastered-content p{color:var(--text-muted);margin-bottom:1.5rem}.floating-xp{position:fixed;top:70px;right:calc(50% - 380px);font-size:1.4rem;font-weight:800;color:var(--success);text-shadow:0 0 10px rgba(52,211,153,.5);animation:floatUp 1s ease-out forwards;pointer-events:none;z-index:100}.surprise-bonus{text-align:center;padding:12px;background:linear-gradient(135deg,#fbbf2426,#818cf826);border:2px solid var(--warning);border-radius:var(--radius);margin-bottom:12px;animation:bonusPop .4s ease-out;font-weight:700;color:var(--warning);font-size:1.1rem}.scoreboard{display:flex;align-items:center;gap:16px;padding:12px 16px;background:var(--bg-card-solid);border-radius:var(--radius);margin-bottom:20px;flex-wrap:wrap;border:1px solid var(--border)}.scoreboard-item{display:flex;flex-direction:column;align-items:center;gap:2px}.scoreboard-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.scoreboard-value{font-size:1.2rem;font-weight:700}.scoreboard-xp{flex:1;min-width:120px}.progress-bar{width:100%;height:8px;background:var(--border);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:4px;transition:width .5s ease}.scoreboard-detail{font-size:.7rem;color:var(--text-muted)}.streak .scoreboard-value{color:var(--warning)}.session .scoreboard-value{color:var(--success)}.btn{display:inline-flex;align-items:center;gap:6px;padding:12px 24px;border:none;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.btn-primary{background:linear-gradient(135deg,var(--primary),#6366f1);color:#fff;box-shadow:0 4px 12px #6366f14d}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover),var(--primary));transform:translateY(-2px);box-shadow:0 6px 20px #6366f166}.btn-secondary{background:var(--bg-hover);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border);transform:translateY(-1px)}.btn-back{background:#ffffff0d;color:var(--text-muted);padding:8px 14px;font-size:.9rem;border-radius:20px}.btn-back:hover{color:var(--text);background:#ffffff1a}.btn-back:before{content:"←";margin-right:4px}.btn-collapse{background:transparent;color:var(--accent);padding:6px 10px;font-size:.85rem}.progress-stepper{display:flex;align-items:center;gap:0;margin-bottom:20px;padding:10px 16px;background:var(--bg-card-solid);border-radius:var(--radius);border:1px solid var(--border);overflow-x:auto}.stepper-step{display:flex;align-items:center;gap:6px;white-space:nowrap}.stepper-dot{width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;flex-shrink:0;transition:all .3s ease}.stepper-step.pending .stepper-dot{background:var(--border);color:var(--text-muted)}.stepper-step.active .stepper-dot{background:var(--primary);color:#fff;box-shadow:0 0 12px #818cf866}.stepper-step.done .stepper-dot{background:var(--success);color:#fff}.stepper-label{font-size:.8rem;color:var(--text-muted)}.stepper-step.active .stepper-label{color:var(--text);font-weight:600}.stepper-step.done .stepper-label{color:var(--success)}.stepper-line{width:20px;height:2px;background:var(--border);margin:0 6px;flex-shrink:0}.stepper-step.done+.stepper-step .stepper-line,.stepper-step.done .stepper-line{background:var(--success)}.mission-briefing{position:relative;min-height:70vh;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);overflow:hidden;animation:fadeIn .4s ease-out}.mission-briefing[style*=--hero-url] .mission-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background-image:var(--hero-url);background-size:cover;background-position:center;opacity:.2;z-index:0}.mission-briefing .mission-overlay:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#0f172ad9,#0f172af2);z-index:1}.mission-content{position:relative;z-index:2;text-align:center;padding:40px 24px;max-width:500px;width:100%}.mission-content .btn-back{position:absolute;top:8px;left:8px}.mission-badge{font-size:3.5rem;margin-bottom:12px;filter:drop-shadow(0 0 20px rgba(129,140,248,.3))}.mission-title{font-size:1.8rem;font-weight:800;margin-bottom:8px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.mission-passage-name{color:var(--text-muted);font-size:1.05rem;margin-bottom:24px}.mission-steps{display:flex;flex-direction:column;gap:12px;margin-bottom:20px;text-align:left}.mission-step{display:flex;align-items:center;gap:12px;padding:10px 16px;background:#ffffff0a;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.06)}.mission-step-num{width:28px;height:28px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex-shrink:0}.mission-time{color:var(--text-muted);font-size:.9rem;margin-bottom:24px}.mission-start{font-size:1.1rem;padding:14px 40px}.game-selector{animation:fadeIn .4s ease-out}.game-selector-header{text-align:center;margin-bottom:32px}.game-selector-header h1{font-size:2.8rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.subtitle{color:var(--text-muted);font-size:1.1rem;margin-top:4px}.mode-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.mode-card{position:relative;background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid var(--border);border-radius:var(--radius);padding:24px;text-align:left;cursor:pointer;transition:all .25s ease;display:flex;flex-direction:column;gap:8px;color:var(--text);font-family:inherit;font-size:inherit;overflow:hidden}.mode-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:opacity .25s ease}.mode-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--glow),0 12px 32px #0000004d}.mode-card:hover:before{opacity:1}.mode-icon{font-size:2.2rem}.mode-card h3{font-size:1.2rem}.mode-card p{color:var(--text-muted);font-size:.9rem;line-height:1.5}.mode-played{font-size:.8rem;color:var(--accent);margin-top:auto}.category-section{margin-bottom:32px}.category-heading{font-size:1.3rem;font-weight:700;color:var(--text-muted);margin-bottom:12px;display:flex;align-items:center;gap:8px;letter-spacing:.02em}.category-icon{font-size:1.4rem}.theme-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.theme-card{position:relative;border:2px solid var(--border);border-radius:var(--radius);padding:0;text-align:left;cursor:pointer;transition:all .25s ease;color:var(--text);font-family:inherit;font-size:inherit;overflow:hidden;min-height:180px;display:flex;align-items:flex-end;background-image:var(--hero-url);background-size:cover;background-position:center}.theme-card-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to top,#0f172af2 30%,#0f172a4d);transition:background .25s ease}.theme-card-content{position:relative;z-index:1;padding:20px;width:100%}.theme-icon{font-size:2rem;display:block;margin-bottom:6px}.theme-card h3{font-size:1.2rem;margin-bottom:4px}.theme-card p{color:var(--text-muted);font-size:.85rem;line-height:1.4}.theme-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:opacity .25s ease;z-index:2}.theme-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--glow),0 12px 32px #0000004d}.theme-card:hover:before{opacity:1}.theme-card:hover .theme-card-overlay{background:linear-gradient(to top,#0f172ae6 20%,#0f172a26)}.theme-modes{animation:fadeIn .4s ease-out;position:relative}.theme-modes[style*=--hero-url]:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background-image:var(--hero-url);background-size:cover;background-position:center;opacity:.1;z-index:-1;pointer-events:none}.theme-modes-header{display:flex;align-items:center;gap:12px;margin-bottom:24px}.theme-modes-title{display:flex;align-items:center;gap:10px}.theme-modes-icon{font-size:1.8rem}.theme-modes-header h2{font-size:1.6rem;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.game-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.game-header h2{flex:1;font-size:1.4rem}.question-counter,.timer{background:var(--bg-card-solid);padding:6px 14px;border-radius:20px;font-size:.9rem;font-weight:600;color:var(--accent);border:1px solid var(--border)}.timer{color:var(--warning);min-width:60px;text-align:center}.passage-display{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius);padding:28px;margin-bottom:20px;animation:slideUp .3s ease-out;border:1px solid rgba(255,255,255,.06)}.passage-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}.passage-header h3{flex:1;font-size:1.3rem}.passage-topic{background:linear-gradient(135deg,var(--primary),#6366f1);color:#fff;padding:4px 12px;border-radius:12px;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;font-weight:600}.passage-text{font-size:1.15rem;line-height:2;color:var(--text);white-space:pre-line;max-width:65ch}.passage-display .btn-primary{margin-top:20px;width:100%}.highlight-word{background:#fbbf2433;color:var(--warning);padding:2px 6px;border-radius:4px;font-weight:600;border-bottom:2px solid rgba(251,191,36,.4)}.quiz-section{animation:slideUp .3s ease-out;position:relative}.quiz-question{font-size:1.2rem;font-weight:600;margin-bottom:16px;line-height:1.6}.quiz-options{display:flex;flex-direction:column;gap:10px}.quiz-option{display:flex;align-items:center;gap:14px;padding:16px 20px;background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:1.05rem;cursor:pointer;transition:all .2s ease;text-align:left;font-family:inherit}.quiz-option:hover:not(:disabled){border-color:var(--primary);background:#818cf814;transform:translate(4px)}.quiz-option:disabled{cursor:default}.quiz-option.correct{border-color:var(--success);background:var(--success-bg);animation:pulse .3s ease}.quiz-option.incorrect{border-color:var(--danger);background:var(--danger-bg);opacity:.8}.option-letter{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:var(--border);font-weight:700;font-size:.85rem;flex-shrink:0}.quiz-option.correct .option-letter{background:var(--success);color:#fff}.feedback{padding:14px 18px;border-radius:var(--radius-sm);margin-top:14px;font-weight:600;text-align:center;animation:slideUp .2s ease-out;font-size:1.05rem}.feedback.correct{background:var(--success-bg);color:var(--success);border:1px solid rgba(52,211,153,.2)}.feedback.incorrect{background:var(--danger-bg);color:var(--danger);border:1px solid rgba(251,113,133,.2)}.detective-section{animation:slideUp .3s ease-out}.detective-clue-card{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid var(--accent);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:0 0 20px #67e8f914}.detective-definition{font-size:1.15rem;margin-bottom:10px}.detective-clue{color:var(--text-muted);font-style:italic;font-size:1.05rem}.detective-prompt{font-weight:600;margin-bottom:12px;font-size:1.05rem}.detective-words{display:flex;flex-wrap:wrap;gap:10px}.detective-word-btn{padding:12px 20px;background:var(--bg-card);border:2px solid var(--border);border-radius:var(--radius-sm);color:var(--warning);font-size:1.05rem;font-weight:600;cursor:pointer;transition:all .2s ease;font-family:inherit}.detective-word-btn:hover:not(:disabled){border-color:var(--warning);background:#fbbf2414;transform:translateY(-2px)}.detective-word-btn.correct{border-color:var(--success);background:var(--success-bg);color:var(--success)}.detective-word-btn.incorrect{border-color:var(--danger);background:var(--danger-bg);color:var(--danger)}.speed-info{background:var(--bg-card);border-left:4px solid var(--warning);padding:14px 18px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin-bottom:20px;font-size:1.05rem}.story-text{font-size:1.15rem;line-height:2.1}.story-blank{color:var(--text-muted);border-bottom:2px dashed var(--border);padding:0 4px;letter-spacing:2px}.story-blank.active{color:var(--primary);border-color:var(--primary);background:#818cf814;border-radius:4px;animation:gentleFade 2s ease 3}.filled-blank{font-weight:700;padding:2px 6px;border-radius:4px}.filled-blank.correct{color:var(--success);background:#34d3991f}.filled-blank.incorrect{color:var(--danger);background:#fb71851f;text-decoration:line-through}.fixer-choices{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius);padding:20px;animation:slideUp .3s ease-out;border:1px solid rgba(255,255,255,.06)}.fixer-choices p{font-weight:600;margin-bottom:12px;font-size:1.05rem}.fixer-options{display:flex;flex-wrap:wrap;gap:10px}.fixer-word-btn{padding:12px 22px;background:var(--bg-hover);border:2px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:1.05rem;font-weight:600;cursor:pointer;transition:all .2s ease;font-family:inherit}.fixer-word-btn:hover:not(:disabled){border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--glow)}.fixer-word-btn.correct{border-color:var(--success);background:var(--success-bg);color:var(--success)}.fixer-word-btn.incorrect{border-color:var(--danger);background:var(--danger-bg);color:var(--danger)}.result-screen{text-align:center;padding:40px 20px;animation:fadeIn .4s ease-out}.result-screen h2{font-size:2.2rem;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.result-stats{display:flex;align-items:center;justify-content:center;gap:32px;margin-bottom:32px;flex-wrap:wrap}.result-circle{width:130px;height:130px;border-radius:50%;border:4px solid var(--primary);display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 0 30px #818cf826}.result-score{font-size:1.8rem;font-weight:800}.result-percent{font-size:.9rem;color:var(--text-muted)}.result-points p{font-size:1.1rem;margin-bottom:4px}.result-total{font-size:1.3rem;color:var(--success);margin-top:8px}.result-actions{display:flex;gap:12px;justify-content:center}.reward-video{margin:24px 0;animation:slideUp .4s ease-out}.reward-title{font-size:1.1rem;color:var(--warning);margin-bottom:16px}.video-container{position:relative;width:100%;padding-bottom:56.25%;border-radius:var(--radius);overflow:hidden;background:var(--bg-card-solid);box-shadow:0 8px 32px #0006}.video-container iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}.video-credit{font-size:.85rem;color:var(--text-muted);margin-top:8px}.reward-locked{color:var(--text-muted);font-style:italic;margin-bottom:20px}.video-unlock-section{margin:20px 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