:root{--primary-color:#ff6b35;--primary-glow:#ff6b3580;--secondary-color:#4ecdc4;--secondary-glow:#4ecdc480;--bg-dark:#0a0a0f;--bg-card:#14141ee6;--bg-card-hover:#1e1e2df2;--text-primary:#fff;--text-secondary:#ffffffb3;--text-muted:#fff6;--success-color:#0f8;--error-color:#ff4757;--warning-color:#ffa502;--rarity-gray:#b0c3d9;--rarity-lightblue:#5e98d9;--rarity-blue:#4b69ff;--rarity-purple:#8847ff;--rarity-pink:#d32ce6;--rarity-red:#eb4b4b;--rarity-gold:#e4ae39;--border-radius:12px;--transition-fast:.2s ease;--transition-normal:.3s ease;--transition-slow:.5s ease}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-dark);color:var(--text-primary);-webkit-user-select:none;user-select:none;min-height:100vh;font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,sans-serif;position:relative;overflow-x:hidden}input,textarea{-webkit-user-select:auto;user-select:auto}.particles{pointer-events:none;z-index:0;width:100%;height:100%;position:fixed;top:0;left:0;overflow:hidden}.particle{background:var(--primary-color);opacity:0;border-radius:50%;width:4px;height:4px;animation:15s ease-in-out infinite backwards float;position:absolute;transform:translateY(100vh)rotate(0)}@keyframes float{0%,to{opacity:0;transform:translateY(100vh)rotate(0)}10%{opacity:.3}90%{opacity:.3}to{opacity:0;transform:translateY(-100vh)rotate(720deg)}}.container{z-index:1;justify-content:center;align-items:center;min-height:100dvh;padding:20px;display:flex;position:relative}.screen{width:100%;max-width:800px;animation:.5s fadeIn}.screen.hidden{display:none}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.logo-container{text-align:center;margin-bottom:50px;position:relative}.logo-glow{background:radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);opacity:.5;width:300px;height:300px;animation:3s ease-in-out infinite pulse-glow;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes pulse-glow{0%,to{opacity:.5;transform:translate(-50%,-50%)scale(1)}50%{opacity:.3;transform:translate(-50%,-50%)scale(1.2)}}.main-title{flex-wrap:wrap;justify-content:center;align-items:center;gap:20px;font-family:Orbitron,sans-serif;font-size:3.5rem;font-weight:900;display:flex;position:relative}.title-cs{background:linear-gradient(135deg, var(--primary-color), var(--warning-color));-webkit-text-fill-color:transparent;text-shadow:0 0 40px var(--primary-glow);-webkit-background-clip:text;background-clip:text;animation:2s ease-in-out infinite alternate title-glow}@keyframes title-glow{0%{filter:drop-shadow(0 0 20px var(--primary-glow))}to{filter:drop-shadow(0 0 40px var(--primary-glow))}}.title-divider{background:linear-gradient(to bottom, transparent, var(--secondary-color), transparent);width:3px;height:50px}.title-quiz{background:linear-gradient(135deg, var(--secondary-color), #45b7aa);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.subtitle{color:var(--text-secondary);letter-spacing:2px;margin-top:15px;font-size:1.2rem}.start-buttons{flex-direction:column;align-items:center;gap:15px;margin-bottom:50px;display:flex}.btn{cursor:pointer;transition:all var(--transition-normal);border:none;border-radius:50px;justify-content:center;align-items:center;gap:12px;min-width:250px;padding:18px 50px;font-family:inherit;font-size:1.1rem;font-weight:600;display:flex;position:relative;overflow:hidden}.btn:before{content:"";background:linear-gradient(90deg,#0000,#fff3,#0000);width:100%;height:100%;transition:left .5s;position:absolute;top:0;left:-100%}.btn:hover:before{left:100%}.btn-primary{background:linear-gradient(135deg, var(--primary-color), #e55a2b);color:#fff;box-shadow:0 8px 30px var(--primary-glow)}.btn-primary:hover{box-shadow:0 12px 40px var(--primary-glow);transform:translateY(-3px)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:2px solid #ffffff1a}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--secondary-color);transform:translateY(-3px)}.btn-danger{color:#fff;background:linear-gradient(135deg,#ff4757,#c0392b);border:none}.btn-danger:hover{background:linear-gradient(135deg,#ff6b7a,#e74c3c);transform:translateY(-3px);box-shadow:0 8px 25px #ff475766}.leaderboard-buttons{justify-content:center;gap:15px;display:flex}.btn.pulse{animation:2s infinite btn-pulse}@keyframes btn-pulse{0%,to{box-shadow:0 8px 30px var(--primary-glow)}50%{box-shadow:0 8px 50px var(--primary-glow), 0 0 0 10px #ff6b351a}}.btn-icon{font-size:1.2rem}.btn-icon-only{background:var(--bg-card);width:45px;height:45px;color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast);border:none;border-radius:50%;font-size:1.2rem}.btn-icon-only:hover{background:var(--bg-card-hover);transform:scale(1.1)}.stats-preview{flex-wrap:wrap;justify-content:center;gap:50px;display:flex}.stat-item{text-align:center}.stat-value{color:var(--secondary-color);text-shadow:0 0 20px var(--secondary-glow);font-family:Orbitron,sans-serif;font-size:2.5rem;font-weight:700;display:block}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;font-size:.9rem}.game-header{justify-content:space-between;align-items:center;width:100%;margin-bottom:110px;padding:10px 40px;display:flex}.header-left,.header-right{align-items:center;gap:20px;display:flex}.score-display{flex-direction:column;align-items:center;display:flex}.score-label{color:var(--text-muted);text-transform:uppercase;font-size:.8rem}.score-value{color:var(--warning-color);font-family:Orbitron,sans-serif;font-size:1.8rem;font-weight:700}.combo-display{opacity:0;transition:all var(--transition-fast);background:linear-gradient(135deg,#ff6b3533,#ffa50233);border-radius:20px;align-items:center;gap:5px;padding:8px 15px;display:flex;transform:scale(.8)}.combo-display.active{opacity:1;transform:scale(1)}.combo-value{color:var(--primary-color);font-family:Orbitron,sans-serif;font-size:1.2rem;font-weight:700}.combo-label{color:var(--text-secondary);font-size:.75rem}.timer-container{width:70px;height:70px;position:relative}.timer-svg{width:100%;height:100%;transform:rotate(-90deg)}.timer-bg{fill:none;stroke:#ffffff1a;stroke-width:6px}.timer-progress{fill:none;stroke:var(--secondary-color);stroke-width:6px;stroke-linecap:round;stroke-dasharray:283;stroke-dashoffset:0;transition:stroke-dashoffset 1s linear,stroke .3s}.timer-progress.warning{stroke:var(--warning-color)}.timer-progress.danger{stroke:var(--error-color)}.timer-text{font-family:Orbitron,sans-serif;font-size:1.4rem;font-weight:700;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.question-counter{color:var(--text-secondary);font-family:Orbitron,sans-serif;font-size:1.2rem}.counter-divider{color:var(--text-muted);margin:0 3px}.question-area{text-align:center;margin-bottom:30px}.skin-image-container{margin-bottom:25px}.image-frame{background:linear-gradient(145deg, var(--bg-card), #1e1e2dcc);border-radius:var(--border-radius);padding:20px;display:inline-block;position:relative;box-shadow:0 20px 60px #00000080}.corner{border:3px solid var(--secondary-color);width:20px;height:20px;position:absolute}.corner-tl{border-bottom:none;border-right:none;top:10px;left:10px}.corner-tr{border-bottom:none;border-left:none;top:10px;right:10px}.corner-bl{border-top:none;border-right:none;bottom:10px;left:10px}.corner-br{border-top:none;border-left:none;bottom:10px;right:10px}.skin-image{object-fit:contain;width:auto;max-width:350px;height:auto;max-height:250px;transition:transform var(--transition-normal);border-radius:8px}.image-loading{display:none;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.image-loading.active{display:block}.loading-spinner{border:4px solid #ffffff1a;border-top-color:var(--secondary-color);border-radius:50%;width:50px;height:50px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.question-text h2{color:var(--text-primary);font-size:1.5rem;font-weight:500}.options-container{grid-template-columns:repeat(2,1fr);gap:15px;display:grid}@media (width<=600px){.options-container{grid-template-columns:1fr}}.option-btn{background:var(--bg-card);border-radius:var(--border-radius);cursor:pointer;transition:all var(--transition-fast);text-align:left;border:2px solid #ffffff1a;align-items:center;gap:15px;padding:20px 25px;display:flex}.option-btn:hover:not(:disabled){background:var(--bg-card-hover);border-color:var(--secondary-color);transform:translate(5px)}.option-btn:disabled{cursor:not-allowed;opacity:.7}.option-btn.correct{border-color:var(--success-color);background:linear-gradient(135deg,#0f83,#00c8641a);animation:.5s correct-pulse}@keyframes correct-pulse{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}.option-btn.wrong{border-color:var(--error-color);background:linear-gradient(135deg,#ff475733,#c8323c1a);animation:.5s wrong-shake}@keyframes wrong-shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-10px)}40%,80%{transform:translate(10px)}}.option-btn.wrong-shatter{pointer-events:none;animation:.8s ease-out forwards button-shatter;position:relative}@keyframes button-shatter{0%{opacity:1;filter:blur();transform:translate(0)translateY(0)rotate(0)}20%{opacity:1;transform:translate(-5px)translateY(-10px)rotate(-2deg)}40%{opacity:.9;transform:translate(5px)translateY(0)rotate(3deg)}to{opacity:0;filter:blur(3px);transform:translate(0)translateY(150px)rotate(15deg)}}.shatter-piece{border:1px solid var(--error-color);pointer-events:none;background:linear-gradient(135deg,#ff47574d,#c8323c33);animation:.8s ease-out forwards piece-fly;position:absolute}@keyframes piece-fly{0%{opacity:1;transform:translate(0)rotate(0)scale(1)}to{opacity:0;transform:translate(var(--tx), var(--ty)) rotate(var(--rot)) scale(.3)}}.confetti-container{pointer-events:none;z-index:9999;width:100%;height:100%;position:fixed;top:0;left:0;overflow:hidden}.confetti{width:10px;height:10px;animation:linear forwards confetti-fall;position:absolute}.confetti.square{border-radius:2px}.confetti.circle{border-radius:50%}.confetti.ribbon{border-radius:2px;width:4px;height:16px}.confetti.star{border-left:5px solid #0000;border-right:5px solid #0000;border-bottom:10px solid var(--confetti-color);width:0;height:0;background:0 0!important}@keyframes confetti-fall{0%{transform:translateY(var(--start-y)) translateX(var(--start-x)) rotate(0deg) scale(1);opacity:1}to{transform:translateY(var(--end-y)) translateX(var(--drift-x)) rotate(var(--spin)) scale(.5);opacity:0}}.option-letter{background:#ffffff1a;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:35px;height:35px;font-family:Orbitron,sans-serif;font-size:.9rem;font-weight:700;display:flex}.option-text{color:var(--text-primary);font-size:1rem;line-height:1.4}.feedback-overlay{z-index:80;pointer-events:none;background:0 0;justify-content:flex-end;align-items:flex-start;width:360px;max-width:90vw;animation:.3s fadeIn;display:flex;position:fixed;top:70px;right:30px}.feedback-overlay.hidden{display:none}.feedback-content{text-align:left;background:var(--bg-card);border-radius:var(--border-radius);pointer-events:auto;border:1px solid #ffffff1f;width:100%;padding:28px 28px 24px;transition:transform .5s,opacity .5s;position:relative;transform:translate(0)scale(1)rotate(0);box-shadow:0 18px 45px #00000073}.feedback-content.flying{transform:translate(var(--from-x,0px), var(--from-y,0px)) scale(.65) rotate(-10deg);opacity:.85}.feedback-content.settled{opacity:1;transform:translate(0)scale(1)rotate(0)}.feedback-content:before,.feedback-content:after{content:"";border-radius:var(--border-radius);background:var(--bg-card);z-index:-1;border:1px solid #ffffff14;position:absolute;inset:0}.feedback-content:before{opacity:.65;transform:translate(10px,12px)rotate(2deg)}.feedback-content:after{opacity:.4;transform:translate(4px,6px)rotate(-1.5deg)}@keyframes scaleIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.feedback-icon{margin-bottom:12px;font-size:3.8rem;line-height:1}.feedback-icon.correct{animation:.6s bounce}@keyframes bounce{0%,to{transform:scale(1)}50%{transform:scale(1.2)}}.feedback-icon.wrong{animation:.6s shake}@keyframes 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12px;font-size:.85rem}.rarity-badge.gray{color:var(--rarity-gray);background:#b0c3d933}.rarity-badge.lightblue{color:var(--rarity-lightblue);background:#5e98d933}.rarity-badge.blue{color:var(--rarity-blue);background:#4b69ff33}.rarity-badge.purple{color:var(--rarity-purple);background:#8847ff33}.rarity-badge.pink{color:var(--rarity-pink);background:#d32ce633}.rarity-badge.red{color:var(--rarity-red);background:#eb4b4b33}.rarity-badge.gold{color:var(--rarity-gold);background:#e4ae3933}.result-container{text-align:center;background:var(--bg-card);border-radius:var(--border-radius);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:40px}.result-header{margin-bottom:40px}.result-title{color:var(--text-secondary);margin-bottom:20px;font-size:2rem}.final-score{flex-direction:column;align-items:center;display:flex}.final-score .score-label{color:var(--text-muted);margin-bottom:10px;font-size:1rem}.score-number{background:linear-gradient(135deg, var(--primary-color), var(--warning-color));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-family:Orbitron,sans-serif;font-size:4rem;font-weight:900;animation:2s ease-in-out infinite alternate score-glow}@keyframes score-glow{0%{filter:drop-shadow(0 0 10px var(--primary-glow))}to{filter:drop-shadow(0 0 30px var(--primary-glow))}}.result-stats{grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:30px;display:grid}@media (width<=600px){.result-stats{grid-template-columns:repeat(2,1fr)}}.result-stat{border-radius:var(--border-radius);background:#ffffff0d;flex-direction:column;align-items:center;gap:10px;padding:20px;display:flex}.result-stat .stat-icon{font-size:1.5rem}.result-stat .stat-info{flex-direction:column;align-items:center;display:flex}.result-stat .stat-value{color:var(--text-primary);font-family:Orbitron,sans-serif;font-size:1.5rem;font-weight:700}.result-stat .stat-label{color:var(--text-muted);font-size:.8rem}.new-record{border:2px solid var(--warning-color);background:linear-gradient(135deg,#e4ae3933,#ffa50233);border-radius:50px;justify-content:center;align-items:center;gap:10px;margin-bottom:30px;padding:15px 30px;animation:1s ease-in-out infinite record-pulse;display:flex}@keyframes record-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.new-record.hidden{display:none}.record-icon{font-size:1.5rem}.record-text{color:var(--warning-color);font-size:1.2rem;font-weight:700}.rank-info{background:#ffffff0d;border-radius:50px;justify-content:center;align-items:center;margin-bottom:30px;padding:12px 25px;display:flex}.rank-info.hidden{display:none}.rank-text{color:var(--text-secondary);font-size:1.1rem}.rank-text #currentRank{color:var(--secondary-color);font-family:Orbitron,sans-serif;font-size:1.3rem;font-weight:700}.name-input-container{justify-content:center;gap:15px;margin-bottom:30px;display:flex}.name-input-container.hidden{display:none}.name-input-container input{color:var(--text-primary);transition:all var(--transition-fast);background:#ffffff1a;border:2px solid #fff3;border-radius:50px;outline:none;padding:15px 25px;font-family:inherit;font-size:1rem}.name-input-container input:focus{border-color:var(--secondary-color);box-shadow:0 0 20px var(--secondary-glow)}.name-input-container input::placeholder{color:var(--text-muted)}.auto-save-hint{color:var(--success-color);white-space:nowrap;align-items:center;gap:5px;font-size:.85rem;display:flex}.auto-save-hint:before{content:"✓"}.result-buttons{flex-wrap:wrap;justify-content:center;gap:15px;display:flex}.leaderboard-container{background:var(--bg-card);border-radius:var(--border-radius);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:40px}.leaderboard-title{justify-content:center;align-items:center;gap:15px;margin-bottom:30px;font-size:2rem;display:flex}.trophy{font-size:2.5rem;animation:2s ease-in-out infinite alternate trophy-glow}@keyframes trophy-glow{0%{filter:drop-shadow(0 0 10px #e4ae3980)}to{filter:drop-shadow(0 0 25px #e4ae39cc)}}.leaderboard-list{max-height:400px;margin-bottom:30px;margin-right:-10px;padding-right:10px;overflow:hidden}.leaderboard-item{border-radius:var(--border-radius);transition:all var(--transition-fast);background:#ffffff0d;align-items:center;gap:20px;margin-bottom:10px;padding:15px;display:flex}.leaderboard-item:hover{background:#ffffff1a;transform:translate(5px)}.leaderboard-item.top-1{background:linear-gradient(135deg,#ffd70033,#ffa5001a);border:1px solid #ffd7004d}.leaderboard-item.top-2{background:linear-gradient(135deg,#c0c0c033,#9696961a);border:1px solid #c0c0c04d}.leaderboard-item.top-3{background:linear-gradient(135deg,#cd7f3233,#b464281a);border:1px solid #cd7f324d}.rank-badge{background:#ffffff1a;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-family:Orbitron,sans-serif;font-weight:700;display:flex}.rank-badge.gold{color:#1a1a1a;background:linear-gradient(135deg,gold,#ffb700)}.rank-badge.silver{color:#1a1a1a;background:linear-gradient(135deg,silver,#a0a0a0)}.rank-badge.bronze{color:#1a1a1a;background:linear-gradient(135deg,#cd7f32,#b8690e)}.player-name{flex:1;font-weight:600}.player-score{color:var(--secondary-color);font-family:Orbitron,sans-serif;font-size:1.2rem;font-weight:700}.player-date{color:var(--text-muted);font-size:.8rem}.empty-leaderboard{text-align:center;color:var(--text-muted);padding:40px}.empty-leaderboard-icon{opacity:.5;margin-bottom:15px;font-size:3rem}.pause-overlay{z-index:200;background:#0a0a0ff2;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:fixed;top:0;left:0}.pause-overlay.hidden{display:none}.pause-content{text-align:center}.pause-content h2{color:var(--text-primary);margin-bottom:40px;font-size:2.5rem}.pause-buttons{flex-direction:column;align-items:center;gap:15px;display:flex}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#ffffff0d;border-radius:10px}::-webkit-scrollbar-thumb{background:#fff3;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#ffffff4d}@media (width<=768px){.main-title{font-size:2.5rem}.game-header{flex-wrap:wrap;gap:15px}.header-center{order:-1;justify-content:center;width:100%;display:flex}.skin-image{max-width:280px;max-height:200px}.feedback-content,.leaderboard-container,.result-container{padding:25px}}.image-frame.music-mode .skin-image{filter:blur(25px)brightness(.7);transition:filter .5s}.image-frame.music-mode.revealed .skin-image{filter:blur(8px)brightness(.85)}.music-play-button{border:3px solid var(--secondary-color);cursor:pointer;z-index:10;background:#000000b3;border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;transition:all .3s;display:none;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 30px #4ecdc466}.music-play-button.active{display:flex}.music-play-button:hover{border-color:var(--primary-color);background:#000000d9;transform:translate(-50%,-50%)scale(1.1);box-shadow:0 0 40px #ff6b3580}.play-icon{border-top:15px solid #0000;border-bottom:15px solid #0000;border-left:25px solid var(--secondary-color);width:0;height:0;margin-left:5px;transition:all .3s}.music-play-button:hover .play-icon{border-left-color:var(--primary-color)}.music-play-button.playing .play-icon{background:linear-gradient(to right, var(--secondary-color) 0%, var(--secondary-color) 35%, transparent 35%, transparent 65%, var(--secondary-color) 65%, var(--secondary-color) 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