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.card-inner{transform:rotateY(180deg)}.card-front,.card-back{position:absolute;width:100%;height:100%;backface-visibility:hidden;display:flex;align-items:center;justify-content:center;font-size:3rem;border-radius:12px;box-shadow:0 4px 8px #0003}.card-front{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-size:4rem;font-weight:700}.card-back{background:#fff;transform:rotateY(180deg)}@media(max-width:1000px){.pet-container{grid-template-columns:1fr}.memory-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:600px){.card-front,.card-back{font-size:2rem}.watching-pet{font-size:3rem}}.timer-page{max-width:800px;margin:0 auto;padding:2rem}.timer-fullscreen{position:fixed;inset:0;background:linear-gradient(135deg,#1e3c72,#2a5298);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:2000}.exit-fullscreen{position:absolute;top:2rem;right:2rem;background:#fff3;color:#fff;border:2px solid rgba(255,255,255,.5);padding:1rem 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#0006}.fullscreen-btn:disabled{opacity:.5;cursor:not-allowed}.fullscreen-btn.start{background:linear-gradient(135deg,#56ab2f,#a8e063);color:#fff}.fullscreen-btn.pause{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff}.fullscreen-btn.reset{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#fff}.timer-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem}.timer-header h1{margin:0;color:#333;font-size:2.5rem}.header-controls{display:flex;gap:1rem}.mode-toggle{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:.8rem 1.5rem;border-radius:25px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.mode-toggle:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.view-mode-buttons{display:flex;gap:1rem;margin-bottom:2rem;justify-content:center}.view-mode-btn{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff;border:none;padding:1rem 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.5rem;color:#666;font-size:.9rem}.score-display,.high-score-display,.level-display{font-size:2rem;font-weight:700;color:gold}.high-score-display{color:#f5576c}.pause-overlay,.game-over-overlay,.level-complete-overlay{position:absolute;inset:0;background:#000000e6;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:12px;z-index:10}.level-complete-overlay{background:linear-gradient(135deg,#56ab2ff2,#a8e063f2)}.pause-overlay h2,.game-over-overlay h2,.level-complete-overlay h2{color:#ffd93d;font-size:3rem;margin:0 0 1rem}.level-complete-overlay h2{color:#fff}.pause-overlay p,.game-over-overlay p,.level-complete-overlay p{color:#ccc;font-size:1.2rem;margin-bottom:2rem}.level-complete-overlay p{color:#fff}.new-high-score{color:#f5576c!important;font-weight:700;animation:pulse 1s infinite}.game-over-overlay button,.level-complete-overlay button{padding:1rem 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strong{color:#333;font-size:1.2rem}.game-description ul{margin:1rem 0;padding-left:2rem}.game-description li{margin:.5rem 0;color:#666}.difficulty-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.difficulty-btn{padding:2rem 1.5rem;border:none;border-radius:20px;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px #0000001a;color:#fff}.difficulty-btn:hover{transform:translateY(-5px);box-shadow:0 8px 25px #00000026}.difficulty-btn.easy{background:linear-gradient(135deg,#56ab2f,#a8e063)}.difficulty-btn.medium{background:linear-gradient(135deg,#f093fb,#f5576c)}.difficulty-btn.hard{background:linear-gradient(135deg,#ff6b6b,#c92a2a)}.diff-label{font-size:1.5rem;font-weight:700;margin-bottom:.5rem}.diff-disks{font-size:1.2rem;margin-bottom:.3rem}.diff-moves{font-size:1rem;opacity:.9}.hanoi-game{max-width:1200px;width:100%}.game-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.game-header h1{margin:0;color:#333;font-size:2.5rem}.back-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:.8rem 1.5rem;border-radius:15px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s}.back-btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px #667eea66}.game-stats{display:flex;justify-content:center;gap:3rem;background:#fff;padding:1.5rem;border-radius:20px;box-shadow:0 4px 15px #00000014;margin-bottom:2rem}.stat-item{display:flex;flex-direction:column;align-items:center}.stat-label{font-size:.9rem;color:#666;margin-bottom:.3rem}.stat-value{font-size:2rem;font-weight:700;color:#333}.stat-value.perfect{color:#56ab2f}.stat-value.good{color:#f5576c}.stat-value.okay{color:#ff6b6b}.completion-banner{background:linear-gradient(135deg,#56ab2f,#a8e063);color:#fff;padding:2rem;border-radius:20px;margin-bottom:2rem;animation:slideDown .5s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.completion-content h2{margin:0 0 1rem;font-size:2rem}.completion-content p{margin:0 0 1.5rem;font-size:1.2rem}.play-again-btn{background:#fff;color:#56ab2f;border:none;padding:1rem 2rem;border-radius:15px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s}.play-again-btn:hover{transform:scale(1.05)}.towers-container{display:flex;justify-content:space-around;align-items:flex-end;background:#fff;padding:3rem 2rem 2rem;border-radius:25px;box-shadow:0 8px 30px #0000001a;margin-bottom:2rem;min-height:400px}.tower{position:relative;width:200px;height:350px;display:flex;flex-direction:column;align-items:center;cursor:pointer;transition:all .3s}.tower.selected{transform:scale(1.05)}.tower.clickable:hover{transform:translateY(-5px)}.tower-label{position:absolute;top:-40px;font-size:1.2rem;font-weight:600;color:#666}.tower.selected .tower-label{color:#667eea}.tower-pole{position:absolute;bottom:10px;width:10px;height:280px;background:linear-gradient(180deg,#d0d0d0,#a0a0a0);border-radius:5px;box-shadow:0 2px 8px #0003}.tower.selected .tower-pole{background:linear-gradient(180deg,#667eea,#764ba2)}.disks-container{position:absolute;bottom:10px;width:100%;display:flex;flex-direction:column;align-items:center}.disk{position:absolute;height:25px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:1.2rem;box-shadow:0 4px 10px #0003;transition:all .3s;cursor:pointer}.disk:hover{filter:brightness(1.1)}.tower-base{position:absolute;bottom:0;width:100%;height:10px;background:linear-gradient(90deg,#8b8b8b,#5a5a5a);border-radius:5px;box-shadow:0 2px 5px #0000004d}.game-controls{display:flex;justify-content:center;gap:1rem;margin-bottom:1rem}.control-btn{padding:1rem 2.5rem;font-size:1.2rem;font-weight:600;border:none;border-radius:15px;cursor:pointer;transition:all .2s;box-shadow:0 4px 15px #0000001a}.control-btn.reset{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#fff}.control-btn:hover{transform:translateY(-3px);box-shadow:0 6px 20px #00000026}.game-instructions{text-align:center;color:#666;font-size:1.1rem;background:#fff;padding:1rem;border-radius:15px;box-shadow:0 2px 10px #0000000d}@media(max-width:1000px){.difficulty-buttons{grid-template-columns:1fr}.towers-container{flex-direction:column;align-items:center;gap:2rem;padding:2rem 1rem}.tower{width:100%;max-width:300px}.game-stats{flex-direction:column;gap:1rem}}@media(max-width:600px){.hanoi-menu{padding:2rem 1rem}.game-header{flex-direction:column;gap:1rem}.tower{height:250px}.tower-pole{height:200px}}.settings{max-width:900px;margin:0 auto}.settings h1{color:#333;margin-bottom:.5rem}.welcome{color:#666;font-size:1.1rem;margin-bottom:2rem}.settings-lock{min-height:500px;display:flex;align-items:center;justify-content:center}.lock-box{background:#fff;padding:3rem;border-radius:20px;box-shadow:0 10px 40px #00000026;max-width:400px;text-align:center}.lock-box h2{margin-top:0;color:#333;font-size:2rem;margin-bottom:1rem}.hint-text{color:#666;margin-bottom:2rem;line-height:1.6}.secret-hint{display:block;margin-top:1rem;font-size:.85rem;color:#999;font-style:italic}.password-input{width:100%;padding:1rem;font-size:1.1rem;border:2px solid #ddd;border-radius:10px;box-sizing:border-box;margin-bottom:1rem;transition:border-color .3s}.password-input:focus{outline:none;border-color:#667eea}.error{color:#e74c3c;margin:.5rem 0;font-weight:500}.unlock-btn{width:100%;padding:1rem;font-size:1.1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:10px;cursor:pointer;transition:transform .2s}.unlock-btn:hover{transform:translateY(-2px)}.settings-section{background:#fff;padding:2rem;border-radius:16px;box-shadow:0 2px 8px #0000001a;margin-bottom:2rem}.settings-section h2{margin-top:0;color:#333;font-size:1.5rem;margin-bottom:.5rem}.section-desc{color:#666;margin-bottom:1.5rem}.page-toggles{display:flex;flex-direction:column;gap:1rem}.page-toggle{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:#f8f9fa;border-radius:10px;transition:background .2s}.page-toggle:hover{background:#e9ecef}.page-info{display:flex;align-items:center;gap:1rem}.page-icon{font-size:1.5rem}.page-name{font-size:1.1rem;font-weight:500;color:#333}.toggle-switch{position:relative;display:inline-block;width:60px;height:34px}.toggle-switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;inset:0;background-color:#ccc;transition:.4s;border-radius:34px}.slider:before{position:absolute;content:"";height:26px;width:26px;left:4px;bottom:4px;background-color:#fff;transition:.4s;border-radius:50%}input:checked+.slider{background:linear-gradient(135deg,#667eea,#764ba2)}input:checked+.slider:before{transform:translate(26px)}.settings-btn{padding:1rem 2rem;font-size:1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:10px;cursor:pointer;transition:transform .2s}.settings-btn:hover{transform:translateY(-2px)}.settings-btn.danger{background:linear-gradient(135deg,#ff6b6b,#ee5a6f)}.danger-zone{border:2px solid #ff6b6b}.danger-zone h2{color:#ff6b6b}.settings-footer{text-align:center;margin-top:3rem;padding-top:2rem;border-top:2px solid #f0f0f0}.logout-btn{padding:.8rem 2rem;font-size:1rem;color:#666;background:#f0f0f0;border:none;border-radius:10px;cursor:pointer;transition:all .2s}.logout-btn:hover{background:#e0e0e0;color:#333}.login-history{margin-top:1rem}.no-logs{text-align:center;color:#999;padding:2rem;font-style:italic}.login-table{border-radius:8px;overflow:hidden;border:1px solid #e0e0e0}.login-table-header{display:grid;grid-template-columns:2fr 1.5fr 1fr;gap:1rem;padding:1rem;background:#f8f9fa;font-weight:600;font-size:.9rem;color:#666;border-bottom:2px solid #e0e0e0}.login-row{display:grid;grid-template-columns:2fr 1.5fr 1fr;gap:1rem;padding:1rem;border-bottom:1px solid #f0f0f0;transition:background .2s}.login-row:last-child{border-bottom:none}.login-row:hover{background:#f8f9fa}.login-row.success{border-left:3px solid #4caf50}.login-row.failed{border-left:3px solid #f44336;background:#fff3f3}.login-row.failed:hover{background:#ffe8e8}.log-date{color:#333;font-size:.9rem}.log-ip{color:#666;font-family:Courier New,monospace;font-size:.9rem}.log-status{font-weight:600;font-size:.9rem}.login-row.success .log-status{color:#4caf50}.login-row.failed .log-status{color:#f44336}.secret-treasure{max-width:1200px;margin:0 auto;padding:2rem}.treasure-header{text-align:center;margin-bottom:3rem}.treasure-header h1{font-size:3rem;margin:0;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.treasure-subtitle{font-size:1.2rem;color:#666;margin-top:1rem}.progress-bar{margin-top:2rem;background:#fff;padding:1.5rem;border-radius:16px;box-shadow:0 4px 12px #0000001a}.progress-label{font-size:1.1rem;font-weight:600;color:#333;margin-bottom:1rem}.progress-track{height:30px;background:#e9ecef;border-radius:15px;overflow:hidden;position:relative}.progress-fill{height:100%;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:15px;transition:width .5s ease;box-shadow:0 0 20px #667eea66}.riddles-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:2rem;margin-bottom:3rem}.riddle-card{background:#fff;border-radius:20px;padding:2rem;box-shadow:0 4px 20px #0000001a;transition:all .3s ease;border:3px solid transparent}.riddle-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px #00000026}.riddle-card.solved{border-color:#4caf50;background:linear-gradient(135deg,#f0fff4,#e8f5e9)}.riddle-number{display:inline-block;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:.5rem 1rem;border-radius:20px;font-weight:600;font-size:.9rem;margin-bottom:1rem}.riddle-question{font-size:1.2rem;color:#333;line-height:1.6;margin-bottom:1.5rem;font-weight:500}.riddle-input-area{display:flex;flex-direction:column;gap:.8rem}.answer-input{width:100%;padding:1rem;font-size:1rem;border:2px solid #ddd;border-radius:10px;box-sizing:border-box;transition:border-color .3s}.answer-input:focus{outline:none;border-color:#667eea}.submit-btn{padding:1rem;font-size:1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:10px;cursor:pointer;transition:transform .2s}.submit-btn:hover{transform:translateY(-2px)}.hint-btn{padding:.8rem;font-size:.9rem;font-weight:600;color:#667eea;background:#fff;border:2px solid #667eea;border-radius:10px;cursor:pointer;transition:all .2s}.hint-btn:hover{background:#667eea;color:#fff}.hint-box{padding:1rem;background:#fff8e1;border-left:4px solid #ffc107;border-radius:8px;color:#333;font-size:.95rem}.solved-section{text-align:center;padding:1rem 0}.solved-badge{font-size:1.5rem;font-weight:600;color:#4caf50;margin-bottom:1rem}.reward-unlocked{font-size:1.1rem;color:#666;padding:1rem;background:#4caf501a;border-radius:10px}.rewards-section{margin-top:3rem;background:#fff;padding:2rem;border-radius:20px;box-shadow:0 4px 20px #0000001a}.rewards-section h2{text-align:center;color:#333;margin-top:0;margin-bottom:2rem;font-size:2rem}.rewards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem}.reward-card{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:2rem;border-radius:16px;text-align:center;text-decoration:none;transition:transform .3s ease;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:1rem}.reward-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 12px 30px #667eea66}.reward-icon{font-size:3rem}.reward-name{font-size:1.1rem;font-weight:600}.reward-action{font-size:.9rem;opacity:.9}.victory-message{text-align:center;background:linear-gradient(135deg,#f0fff4,#e8f5e9);padding:3rem;border-radius:20px;margin-top:3rem;border:3px solid #4caf50}.victory-message h2{color:#4caf50;font-size:2.5rem;margin:0 0 1rem}.victory-message p{color:#666;font-size:1.2rem;margin-bottom:2rem}.reset-btn{padding:1rem 2rem;font-size:1.1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:10px;cursor:pointer;transition:transform .2s}.reset-btn:hover{transform:translateY(-2px)}@media(max-width:768px){.riddles-container,.rewards-grid{grid-template-columns:1fr}.treasure-header h1{font-size:2rem}}.secret-lab{width:100%;min-height:100vh;background:linear-gradient(135deg,#1e3c72,#2a5298);display:flex;align-items:center;justify-content:center;padding:2rem}.lab-container{max-width:600px;background:#fffffff2;border-radius:20px;padding:3rem;box-shadow:0 20px 60px #0000004d;text-align:center}.glitch-text{font-size:3rem;margin-bottom:1.5rem;animation:glow 2s ease-in-out infinite alternate}@keyframes glow{0%{text-shadow:0 0 10px #fff,0 0 20px #fff,0 0 30px #00ff00}to{text-shadow:0 0 20px #fff,0 0 30px #00ff00,0 0 40px #00ff00}}.discovery-message{margin:2rem 0;padding:1.5rem;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:15px;color:#fff}.congrats{font-size:1.5rem;font-weight:700;margin-bottom:.5rem}.joke-section{margin:2rem 0}.joke-section h2{color:#2a5298;margin-bottom:1rem}.joke-box{background:#f0f4ff;border-radius:15px;padding:2rem;border-left:5px solid #667eea}.joke-setup{font-size:1.2rem;margin-bottom:1rem;color:#333}.joke-punchline{font-size:1.3rem;font-weight:700;color:#667eea}.hint-box{margin-top:2rem;padding:1rem;background:#fff3cd;border-radius:10px;border:2px dashed #ffc107}.hint-box p{margin:.5rem 0;color:#856404}.small-text{font-size:.9rem;font-style:italic}.secret-garden{width:100%;min-height:100vh;background:linear-gradient(to bottom,#87ceeb,#90ee90);display:flex;align-items:center;justify-content:center;padding:2rem}.garden-container{max-width:650px;background:#ffffffe6;border-radius:25px;padding:3rem;box-shadow:0 15px 50px #0003;text-align:center}.garden-container h1{font-size:2.5rem;margin-bottom:1.5rem;color:#2d5016}.discovery-badge{background:linear-gradient(135deg,#56ab2f,#a8e063);color:#fff;padding:1.5rem;border-radius:15px;margin-bottom:2rem}.badge-title{font-size:1.4rem;font-weight:700;margin-bottom:.5rem}.flower-field{display:flex;justify-content:center;gap:1rem;margin:2rem 0;flex-wrap:wrap}.flower{font-size:3rem;animation:sway 2s ease-in-out infinite}.flower:nth-child(1){animation-delay:0s}.flower:nth-child(2){animation-delay:.2s}.flower:nth-child(3){animation-delay:.4s}.flower:nth-child(4){animation-delay:.6s}.flower:nth-child(5){animation-delay:.8s}@keyframes sway{0%,to{transform:rotate(-5deg)}50%{transform:rotate(5deg)}}.joke-card{background:#fff9e6;border-radius:15px;padding:2rem;margin:2rem 0;border:3px solid #ffd700}.joke-card h2{color:#2d5016;margin-bottom:1rem}.joke-content .setup{font-size:1.1rem;margin-bottom:1rem;color:#333}.joke-content .punchline{font-size:1.3rem;font-weight:700;color:#56ab2f}.explorer-tip{margin-top:2rem;padding:1rem;background:#e8f5e9;border-radius:10px;border:2px dashed #4caf50;color:#2d5016}.secret-space{width:100%;min-height:100vh;background:linear-gradient(to bottom,#000428,#004e92);position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:2rem}.stars{position:absolute;top:0;left:0;width:100%;height:100%;background-image:radial-gradient(2px 2px at 20% 30%,white,transparent),radial-gradient(2px 2px at 60% 70%,white,transparent),radial-gradient(1px 1px at 50% 50%,white,transparent),radial-gradient(1px 1px at 80% 10%,white,transparent),radial-gradient(2px 2px at 90% 60%,white,transparent),radial-gradient(1px 1px at 33% 80%,white,transparent);background-size:200% 200%;animation:twinkle 4s ease-in-out infinite}@keyframes twinkle{0%,to{opacity:1}50%{opacity:.5}}.space-container{max-width:700px;background:#fffffff2;border-radius:30px;padding:3rem;box-shadow:0 0 50px #64c8ff80;text-align:center;position:relative;z-index:1}.space-title{font-size:2.5rem;margin-bottom:2rem;background:linear-gradient(45deg,#667eea,#764ba2,#f093fb);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:shimmer 3s infinite}@keyframes shimmer{0%,to{filter:hue-rotate(0deg)}50%{filter:hue-rotate(45deg)}}.astronaut-message{display:flex;align-items:center;justify-content:center;gap:1rem;margin:2rem 0}.astronaut{font-size:4rem;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}.speech-bubble{background:#e3f2fd;padding:1rem 1.5rem;border-radius:20px;position:relative;border:3px solid #2196f3}.speech-bubble:before{content:"";position:absolute;left:-15px;top:50%;transform:translateY(-50%);border:10px solid transparent;border-right-color:#2196f3}.explorer-name{font-weight:700;color:#1976d2;margin-top:.5rem}.planets{display:flex;justify-content:center;gap:2rem;margin:2rem 0}.planet{font-size:3.5rem;animation:orbit 4s ease-in-out infinite}.planet:nth-child(1){animation-delay:0s}.planet:nth-child(2){animation-delay:.5s}.planet:nth-child(3){animation-delay:1s}@keyframes orbit{0%,to{transform:translateY(0) scale(1)}50%{transform:translateY(-15px) scale(1.1)}}.space-joke{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:2rem;border-radius:20px;margin:2rem 0}.space-joke h2{margin-bottom:1rem}.joke-display .question{font-size:1.2rem;margin-bottom:1rem}.joke-display .answer{font-size:1.4rem;font-weight:700}.mission-status{margin-top:2rem;padding:1.5rem;background:#fff3e0;border-radius:15px;border:3px solid #ff9800}.mission-status p{margin:.5rem 0;color:#e65100}.hint{font-style:italic;font-size:.95rem}