*{margin:0;padding:0;box-sizing:border-box}body{font-family:Courier New,monospace;background:#2c3e50;overflow:hidden;-moz-user-select:none;user-select:none;-webkit-user-select:none;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges}.game-container{position:relative;width:100vw;height:100vh;overflow:hidden}#gameCanvas{display:block;width:100%;height:100%;cursor:pointer;image-rendering:pixelated}.ui-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}.top-ui{position:absolute;top:20px;left:0;right:0;display:flex;justify-content:space-between;align-items:flex-start;padding:0 30px}.score-display,.coins-display,.high-score-display{background:#000c;border:3px solid #FFD700;border-radius:8px;padding:10px 15px;color:#fff;text-align:center;font-weight:700;box-shadow:0 0 10px 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#666;border-radius:8px;padding:15px;text-align:center;transition:all .3s ease}.achievement-card.unlocked{border-color:gold;background:#ffd7001a}.achievement-icon{font-size:32px;margin-bottom:10px}.achievement-name{font-weight:700;margin-bottom:5px;color:gold}.achievement-description{font-size:12px;color:#ccc}.shop-items{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;padding:20px}.shop-item{background:#000c;border:2px solid #666;border-radius:8px;padding:20px;text-align:center;transition:all .3s ease}.shop-item:hover{border-color:gold}.item-icon{font-size:40px;margin-bottom:10px}.item-name{font-weight:700;margin-bottom:5px;color:gold}.item-price{color:#4caf50;font-weight:700;margin-bottom:10px}.buy-button{background:#4caf50;border:none;color:#fff;padding:8px 16px;border-radius:4px;cursor:pointer;font-family:inherit;pointer-events:auto}.buy-button:disabled{background:#666;cursor:not-allowed}.leaderboard-list{padding:20px}.leaderboard-item{display:flex;justify-content:space-between;align-items:center;background:#0009;border:1px solid #666;border-radius:6px;padding:15px;margin-bottom:10px}.player-rank{font-weight:700;color:gold;width:40px}.player-name{flex:1;margin-left:15px}.player-score{font-weight:700;color:#4caf50}.game-over-title{font-size:36px;color:#ff6b6b;text-shadow:3px 3px 0px #000;margin-bottom:30px}.final-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px;margin-bottom:30px}.stat-item{background:#000c;border:2px solid #666;border-radius:8px;padding:15px;text-align:center}.stat-label{font-size:14px;color:#ccc;margin-bottom:5px}.stat-value{font-size:24px;font-weight:700;color:gold}.new-achievements{margin:20px 0;text-align:center}.new-achievement{background:#ffd700e6;color:#000;padding:10px 20px;border-radius:20px;margin:5px;display:inline-block;font-weight:700;animation:achievementPop .5s ease-out}@keyframes achievementPop{0%{transform:scale(0);opacity:0}50%{transform:scale(1.2);opacity:1}to{transform:scale(1);opacity:1}}.game-over-buttons,.pause-buttons{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}.pause-title{font-size:36px;color:gold;text-shadow:3px 3px 0px #000;margin-bottom:30px}.boss-ui{position:absolute;top:80px;left:50%;transform:translate(-50%);width:400px;background:#000000e6;border:3px solid #FF6B6B;border-radius:10px;padding:15px;display:none;z-index:15}.boss-name{text-align:center;font-size:18px;font-weight:700;color:#ff6b6b;margin-bottom:10px}.health-bar-container{background:#333;border:2px solid #666;border-radius:10px;height:20px;overflow:hidden}.health-bar{background:linear-gradient(90deg,#ff6b6b,#ff8e53);height:100%;width:100%;transition:width .3s ease;border-radius:8px}.hidden{display:none!important}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#0000004d;border-radius:4px}::-webkit-scrollbar-thumb{background:gold;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:orange}@media (max-width: 768px){.game-title h1{font-size:32px}.bird-grid{grid-template-columns:repeat(2,1fr);gap:10px}.bird-card{padding:10px}.game-modes{flex-direction:column;align-items:center}.pixel-button{padding:12px 24px;font-size:16px}.start-btn{font-size:20px;padding:16px 32px}.final-stats{grid-template-columns:1fr}.boss-ui{width:90%;max-width:350px}.tab-content{max-height:200px}.achievements-grid,.shop-items{grid-template-columns:1fr;padding:10px}}