*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;justify-content:center;min-height:100vh}#root{max-width:600px;padding:20px}#root,.App,.game-container{width:100%}.game-header{margin-bottom:20px;text-align:center}.game-header h1{color:#fff;font-size:2.5rem;margin-bottom:20px;text-shadow:2px 2px 4px #0003}.game-info{display:flex;flex-wrap:wrap;gap:30px;justify-content:center;margin-bottom:20px}.info-item{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff3;border-radius:15px;box-shadow:0 4px 15px #0000001a;padding:15px 25px}.info-item .label{color:#fffc;font-size:.9rem;font-weight:500;margin-right:10px}.info-item .value{color:#fff;font-size:1.5rem;font-weight:700}.back-button{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff3;border:2px solid #fff;border-radius:10px;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;padding:10px 25px;transition:all .3s ease}.back-button:hover{background:#ffffff4d;transform:translateY(-2px)}.instruction{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff26;border-radius:15px;color:#fff;font-size:1.3rem;font-weight:600;margin:20px 0;padding:20px;text-align:center}.color-guide{flex-wrap:wrap;gap:10px;margin-top:15px}.color-guide,.color-hint{display:flex;justify-content:center}.color-hint{align-items:center;border:3px solid #fff;border-radius:50%;box-shadow:0 2px 10px #0003;color:#fff;font-size:1.2rem;font-weight:700;height:40px;transition:all .3s ease;width:40px}.color-hint.completed{opacity:.5;transform:scale(.9)}@media (max-width:600px){.game-header h1{font-size:2rem}.game-info{gap:15px}.info-item{padding:10px 15px}.info-item .value{font-size:1.2rem}.instruction{font-size:1.1rem;padding:15px}.color-hint{font-size:1rem;height:35px;width:35px}}.game-board{grid-gap:10px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border-radius:20px;box-shadow:0 8px 32px 0 #1f26875e;display:grid;gap:10px;margin:20px auto;max-width:500px;padding:20px}.game-board.size-3{grid-template-columns:repeat(3,1fr)}.game-board.size-4{grid-template-columns:repeat(4,1fr)}.cell{aspect-ratio:1;background:#fff3;border:2px solid #ffffff4d;border-radius:15px;cursor:pointer;min-height:60px;transition:all .3s ease}.cell:hover{border-color:#fff9;transform:scale(1.05)}.cell.displaying{animation:showColor .5s ease-in-out;box-shadow:0 0 20px #ffffff80;transform:scale(1.05)}.cell.revealed{animation:revealColor .3s ease-in-out;border-color:#fff;box-shadow:0 0 15px #fff9;transform:scale(1.02)}@keyframes showColor{0%{opacity:0;transform:scale(1)}50%{opacity:1;transform:scale(1.1)}to{opacity:1;transform:scale(1.05)}}@keyframes revealColor{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1.02)}}@media (max-width:600px){.game-board{gap:8px;padding:15px}.cell{border-radius:10px;min-height:50px}}.menu{background:#fffffff2;border-radius:20px;box-shadow:0 8px 32px 0 #1f26875e;margin:0 auto;max-width:500px;padding:40px;position:relative}.auth-section{position:absolute;right:20px;top:20px;z-index:10}.auth-dropdown-container{position:relative}.login-button{align-items:center;background:#fff;border:2px solid #667eea;border-radius:8px;box-shadow:0 2px 8px #0000001a;color:#667eea;cursor:pointer;display:flex;font-weight:600;gap:10px;min-width:140px;padding:10px 20px;transition:all .3s ease}.login-button:hover{background:#f0f0ff;box-shadow:0 4px 12px #00000026;transform:translateY(-2px)}.auth-dropdown{background:#fff;border:2px solid #667eea;border-radius:8px;box-shadow:0 4px 12px #00000026;min-width:220px;overflow:hidden;position:absolute;right:0;top:calc(100% + 5px);z-index:100}.auth-option{align-items:center;background:#fff;border:none;color:#333;cursor:pointer;display:flex;font-weight:600;gap:12px;padding:12px 16px;text-align:left;transition:all .2s ease;width:100%}.auth-option:hover{background:#f0f0ff}.auth-option img{flex-shrink:0;height:20px;width:20px}.auth-option span{flex:1 1}.login-button img{height:20px;width:20px}.user-info{align-items:center;background:#fff;border-radius:25px;box-shadow:0 2px 8px #0000001a;display:flex;gap:10px;padding:8px 12px}.user-avatar{border-radius:50%;height:32px;width:32px}.user-name{color:#333;font-size:.9rem;font-weight:600;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.logout-button{background:#ff5252;border:none;border-radius:15px;color:#fff;cursor:pointer;font-size:.85rem;font-weight:600;padding:6px 12px;transition:all .3s ease}.logout-button:hover{background:#ff1744}.game-title{color:#667eea;font-size:2.5rem;font-weight:700;margin-bottom:10px;margin-top:50px;text-align:center}.game-description{color:#666;font-size:1.1rem;text-align:center}.game-description,.settings{margin-bottom:30px}.setting-group{margin-bottom:25px}.setting-group h3{color:#333;font-size:1.2rem;margin-bottom:10px}.button-group{flex-wrap:wrap;gap:10px}.option-button{background:#fff;border:2px solid #667eea;border-radius:10px;color:#667eea;cursor:pointer;flex:1 1;font-size:1rem;font-weight:600;min-width:80px;padding:12px 20px;transition:all .3s ease}.option-button:hover{background:#f0f0ff;transform:translateY(-2px)}.option-button.active{background:#667eea;box-shadow:0 4px 15px #667eea66;color:#fff}.game-details{background:#f8f9ff;border-radius:10px;margin-bottom:20px;padding:15px}.game-details h4{color:#667eea;margin-bottom:10px}.game-details ul{color:#333;list-style:none}.game-details li{font-weight:500;padding:5px 0}.menu-buttons{display:flex;flex-direction:column;gap:15px}.start-button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:12px;box-shadow:0 4px 15px #667eea66;color:#fff;font-size:1.3rem;padding:18px}.leaderboard-button,.start-button{cursor:pointer;font-weight:700;transition:all .3s ease;width:100%}.leaderboard-button{background:#fff;border:2px solid #667eea;border-radius:12px;color:#667eea;font-size:1.1rem;padding:15px}.leaderboard-button:hover{background:#f0f0ff;transform:translateY(-2px)}.start-button:hover{box-shadow:0 6px 20px #667eea99;transform:translateY(-2px)}.start-button:active{transform:translateY(0)}.instructions{background:#f0f0f0;border-radius:10px;padding:20px}.instructions h4{color:#333;margin-bottom:15px}.instructions ol{color:#666;padding-left:20px}.instructions li{line-height:1.5;margin-bottom:8px}@media (max-width:600px){.menu{padding:20px}.game-title{font-size:2rem}.option-button{font-size:.9rem;padding:10px 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button{background:#fff;border:2px solid #667eea;border-radius:8px;color:#667eea;cursor:pointer;flex:1 1;font-weight:600;padding:10px;transition:all .3s ease}.filter-group .button-group button:hover{background:#f0f0ff}.filter-group .button-group button.active{background:#667eea;color:#fff}.scores-list{min-height:300px}.loading,.no-scores{color:#666;font-size:1.2rem;padding:60px 20px;text-align:center}.error-message{background:#ffebee;border-radius:10px;margin:20px 0;padding:40px 20px;text-align:center}.error-message p{color:#c62828;font-size:1rem;margin-bottom:15px}.retry-button{background:#667eea;border:none;border-radius:8px;color:#fff;cursor:pointer;font-weight:600;padding:10px 20px;transition:all .3s ease}.retry-button:hover{background:#5568d3;transform:translateY(-2px)}.scores-list table{border-collapse:collapse;width:100%}.scores-list thead{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.scores-list th{font-weight:600;padding:15px;text-align:left}.scores-list 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.rank{font-size:1rem}}.game-over{align-items:center;display:flex;justify-content:center;min-height:70vh}.game-over-content{background:#fffffff2;border-radius:20px;box-shadow:0 8px 32px 0 #1f26875e;max-width:500px;padding:40px;text-align:center;width:100%}.game-over-title{color:#764ba2;font-size:3rem;font-weight:700;margin-bottom:30px;text-shadow:2px 2px 4px #0000001a}.stats{display:flex;gap:20px;justify-content:space-around;margin-bottom:30px}.stat-item{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:15px;box-shadow:0 4px 15px #667eea4d;display:flex;flex:1 1;flex-direction:column;padding:20px}.stat-label{color:#ffffffe6;font-size:.9rem;font-weight:500;margin-bottom:10px}.stat-value{color:#fff;font-size:2.5rem;font-weight:700}.game-over-message{color:#666;font-size:1.2rem;font-weight:500;margin-bottom:30px}.score-saved{background:#4caf50}.save-error,.score-saved{border-radius:8px;color:#fff;font-weight:600;margin-bottom:20px;padding:10px 20px}.save-error{background:#f44336}.login-prompt{background:#ff9800;border-radius:8px;color:#fff;font-weight:600;margin-bottom:20px;padding:10px 20px}.button-group{display:flex;flex-direction:column;gap:15px}.menu-button,.play-again-button{border:none;border-radius:12px;cursor:pointer;font-size:1.2rem;font-weight:700;padding:18px;transition:all .3s ease;width:100%}.play-again-button{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 15px #667eea66;color:#fff}.play-again-button:hover{box-shadow:0 6px 20px #667eea99;transform:translateY(-2px)}.menu-button{background:#fff;border:2px solid #667eea;color:#667eea}.menu-button:hover{background:#f0f0ff;transform:translateY(-2px)}.menu-button:active,.play-again-button:active{transform:translateY(0)}@media (max-width:600px){.game-over-content{padding:30px 20px}.game-over-title{font-size:2.5rem}.stats{flex-direction:column}.stat-value{font-size:2rem}}
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