@import"https://fonts.googleapis.com/css2?family=Quicksand:wght@400;500;600;700&family=ZCOOL+KuaiLe&display=swap";:root{--bg: #EBF5F8;--surface: #FFFFFF;--primary: #4A90E2;--primary-dark: #357ABD;--accent: #E51919;--text: #333333;--text-muted: #666666;--border: #D0D0D0;--success: #28A745;--warning: #FFC107;--danger: #E51919;--radius: 20px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04)}body{margin:0;padding:0;font-family:Quicksand,ZCOOL KuaiLe,sans-serif;background:radial-gradient(circle at 10% 20%,#4A90E233 0%,transparent 40%),radial-gradient(circle at 90% 80%,#E5191922 0%,transparent 40%),var(--bg);color:var(--text);display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:auto;box-sizing:border-box}.app-container{position:relative;width:100%;max-width:450px;min-height:600px;display:flex;flex-direction:column;align-items:center;padding:20px;box-sizing:border-box}.cloud-status{position:absolute;top:10px;right:10px;font-size:.8em;color:var(--text-muted);z-index:1000}.cloud-toast{background:var(--surface);padding:8px 12px;border-radius:var(--radius);box-shadow:var(--shadow);display:flex;align-items:center;gap:5px;white-space:nowrap}.cloud-toast.error{color:var(--danger)}.game-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px;width:100%;max-width:400px;text-align:center;position:relative;z-index:1;display:flex;flex-direction:column;gap:20px}.app-title{font-family:ZCOOL KuaiLe,sans-serif;font-size:2.2em;color:var(--primary-dark);margin-bottom:20px;display:flex;align-items:center;justify-content:center;gap:10px}.title-icon{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px}.icon-img{width:100%;height:100%;object-fit:contain}.start-screen,.playing-screen,.gameover-screen{display:flex;flex-direction:column;align-items:center;gap:20px;width:100%}.hero-image img{width:150px;height:150px;object-fit:contain;margin-bottom:15px}.description{font-size:1.1em;color:var(--text-muted);line-height:1.6}.high-score{font-size:1.2em;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px;margin-top:10px}.trophy-icon{color:var(--warning)}.start-button,.restart-button{background:var(--primary);color:var(--surface);border:none;border-radius:var(--radius);padding:15px 30px;font-size:1.3em;font-weight:700;cursor:pointer;transition:background .3s ease,transform .2s ease;display:flex;align-items:center;gap:8px;justify-content:center}.start-button:hover,.restart-button:hover{background:var(--primary-dark)}.start-button:disabled{background:var(--text-muted);cursor:not-allowed}.level-info{font-size:.9em;color:var(--text-muted);margin-top:10px}.game-header{display:flex;justify-content:space-between;width:100%;margin-bottom:20px}.score-display{font-size:1.2em;font-weight:600;color:var(--primary-dark)}.lives-display{display:flex;gap:5px}.heart-icon{color:var(--accent)}.progress-bar-container{width:100%;height:10px;background:var(--border);border-radius:5px;margin-bottom:25px;position:relative}.progress-bar-fill{height:100%;background:linear-gradient(to right,var(--primary),var(--primary-dark));border-radius:5px;width:0%}.progress-text{position:absolute;top:-25px;right:0;font-size:.9em;color:var(--text-muted)}.question-area{background:var(--bg);border-radius:var(--radius);padding:25px;width:calc(100% - 40px);min-height:120px;display:flex;flex-direction:column;justify-content:center;align-items:center;margin-bottom:25px;box-shadow:var(--shadow);position:relative}.question-text{font-family:ZCOOL KuaiLe,sans-serif;font-size:1.8em;color:var(--text);margin-bottom:15px;text-align:center}.answer-display{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:10px 20px;min-width:150px;font-size:1.5em;font-weight:600;color:var(--text);text-align:center;box-shadow:inset 0 1px 3px #0000000d}.feedback{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:3em;display:flex;align-items:center;justify-content:center;border-radius:50%;padding:10px}.feedback.correct{color:var(--success)}.feedback.incorrect{color:var(--danger)}.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%}.keypad-button{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:15px 0;font-size:1.5em;font-weight:600;color:var(--text);cursor:pointer;transition:background .2s ease,transform .1s ease;box-shadow:var(--shadow)}.keypad-button:hover{background:var(--surface)}.keypad-button.submit-button{grid-column:span 3;background:var(--primary);color:var(--surface);font-family:ZCOOL KuaiLe,sans-serif;font-size:1.6em}.keypad-button.submit-button:hover{background:var(--primary-dark)}.keypad-button.submit-button:disabled{background:var(--text-muted);cursor:not-allowed}.gameover-header{margin-bottom:20px}.medal-img{width:80px;height:80px;object-fit:contain;margin-bottom:10px}.gameover-screen h2{font-family:ZCOOL KuaiLe,sans-serif;font-size:2em;color:var(--primary-dark);margin-bottom:10px}.gameover-screen p{font-size:1.2em;color:var(--text)}.new-high-score{color:var(--accent);font-weight:700;font-size:1.3em}.summary-section,.chart-section{background:var(--bg);border-radius:var(--radius);padding:20px;width:calc(100% - 20px);box-shadow:var(--shadow);margin-bottom:20px;text-align:left}.summary-section h3,.chart-section h3{font-family:ZCOOL KuaiLe,sans-serif;font-size:1.4em;color:var(--primary-dark);margin-bottom:15px;text-align:center;display:flex;align-items:center;justify-content:center;gap:8px}.trend-icon{color:var(--primary)}.wrong-answers-list{list-style:none;padding:10px 0 0;margin:0;max-height:200px;overflow-y:auto;border-top:1px solid var(--border)}.wrong-answers-list li{background:var(--surface);border-radius:10px;padding:10px 15px;margin-bottom:10px;box-shadow:0 1px 2px #0000000d;display:flex;flex-direction:column;gap:5px}.wrong-question{font-weight:600;color:var(--text)}.wrong-user-answer{color:var(--danger);font-size:.9em}.wrong-correct-answer{color:var(--success);font-size:.9em}.wrong-tip{font-size:.8em;color:var(--warning);font-style:italic}.score-history-chart{display:flex;justify-content:space-around;align-items:flex-end;height:150px;width:100%;border-bottom:2px solid var(--border);padding-bottom:5px;position:relative}.score-bar-container{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;width:12%;position:relative;height:100%}.score-point{width:10px;height:10px;border-radius:50%;background-color:var(--primary);position:absolute;top:-5px;transform:translate(-50%);z-index:2}.score-label{position:absolute;top:-25px;font-size:.8em;color:var(--primary-dark);font-weight:600;white-space:nowrap}.date-label{position:absolute;bottom:-20px;font-size:.7em;color:var(--text-muted);white-space:nowrap}.task-background{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden;z-index:0;opacity:.3}.task-background img{width:100%;height:100%;object-fit:cover;object-position:center}@media (max-width: 480px){.game-card{padding:20px;margin:10px}.app-title{font-size:1.8em}.question-text{font-size:1.5em}.answer-display{font-size:1.2em}.keypad-button{font-size:1.2em;padding:12px 0}.keypad-button.submit-button{font-size:1.4em}.hero-image img{width:120px;height:120px}.score-label,.date-label{font-size:.6em}}