*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(180deg,#e6e0d4,#e6e0d4);overflow:hidden;touch-action:none;user-select:none;-webkit-user-select:none}#game-container{position:relative;width:100vw;height:100vh;display:flex;justify-content:center;align-items:center}#game-canvas{display:block;background:linear-gradient(180deg,#e6e0d4,#e6e0d4);width:100%;height:100%;max-width:100vw;max-height:100vh}#ui-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}#score-display{position:absolute;top:20px;left:50%;transform:translate(-50%);font-size:24px;font-weight:700;color:#333;text-shadow:2px 2px 4px rgba(255,255,255,.8);pointer-events:none;z-index:10}#game-over{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#fffffff2;padding:30px;border-radius:15px;text-align:center;box-shadow:0 10px 30px #0000004d;pointer-events:all;z-index:20}#game-over.hidden{display:none}#game-over h2{font-size:32px;color:#333;margin-bottom:15px}#game-over p{font-size:20px;color:#666;margin-bottom:20px}#final-score{font-weight:700;color:#333}#game-over-buttons{display:flex;gap:15px;justify-content:center;flex-wrap:wrap}#restart-btn{background:#4caf50;color:#fff;border:none;padding:12px 30px;font-size:18px;border-radius:8px;cursor:pointer;transition:background .3s}#restart-btn:hover:not(:disabled){background:#45a049}#restart-btn:active:not(:disabled){transform:scale(.95)}#restart-btn:disabled{opacity:.6;cursor:not-allowed}#share-btn{background:#2196f3;color:#fff;border:none;padding:12px 30px;font-size:18px;border-radius:8px;cursor:pointer;transition:background .3s,opacity 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fadeOut{0%{opacity:1}70%{opacity:1}to{opacity:0;visibility:hidden}}#coin-counter{position:absolute;top:20px;left:20px;display:flex;align-items:center;gap:8px;font-size:20px;font-weight:700;color:#333;text-shadow:2px 2px 4px rgba(255,255,255,.8);pointer-events:none;z-index:10}.coin-icon{font-size:24px}.coin-amount{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}#menu-toggle-btn{position:fixed;top:20px;left:20px;width:40px;height:40px;background:#ffffffe6;border:none;border-radius:8px;cursor:pointer;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:8px;z-index:1000;transition:background .3s;box-shadow:0 2px 8px #0003;pointer-events:all}#menu-toggle-btn:hover{background:#fff}#menu-toggle-btn span{width:20px;height:2px;background:#333;border-radius:2px;transition:all 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.1s;font-weight:700}.menu-btn:hover{background:#45a049}.menu-btn:active{transform:scale(.95)}#shop-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .3s ease-in;overflow-y:auto;padding:20px}#shop-modal{background:#fffffff2;padding:30px;border-radius:15px;box-shadow:0 10px 30px #0000004d;position:relative;max-width:800px;width:100%;max-height:90vh;overflow-y:auto;animation:fadeIn .3s ease-in}#shop-close-btn{position:absolute;top:10px;right:10px;background:none;border:none;font-size:32px;color:#666;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .3s}#shop-close-btn:hover{background:#0000001a}#shop-modal 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#0000001a}.shop-item.owned{border-color:#4caf50;background:#4caf501a}.shop-item.disabled{opacity:.6;cursor:not-allowed}.shop-item-icon{font-size:48px;margin-bottom:10px}.shop-item-name{font-size:18px;font-weight:700;color:#333}.shop-item-description{font-size:14px;color:#666;flex-grow:1}.shop-item-cost{display:flex;align-items:center;justify-content:center;gap:5px;font-size:20px;font-weight:700;color:#ff8c00}.shop-item-status{font-size:14px;color:#4caf50;font-weight:700;margin-top:5px}.shop-item-buy-btn{background:#4caf50;color:#fff;border:none;padding:10px 20px;font-size:16px;border-radius:8px;cursor:pointer;transition:background .3s;font-weight:700;margin-top:10px}.shop-item-buy-btn:hover:not(:disabled){background:#45a049}.shop-item-buy-btn:disabled{opacity:.6;cursor:not-allowed}#leaderboard-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .3s ease-in;overflow-y:auto;overflow-x:hidden;padding:10px;box-sizing:border-box}#leaderboard-modal{background:linear-gradient(135deg,#fffffffa,#fffaf0fa);padding:20px;border-radius:15px;box-shadow:0 10px 40px #0003,0 0 0 1px #ffd7001a;position:relative;max-width:calc(100vw - 20px);width:100%;max-width:min(700px,calc(100vw - 20px));max-height:calc(100vh - 20px);overflow-y:auto;overflow-x:hidden;animation:fadeIn .3s ease-in;border:1px solid rgba(255,215,0,.2);box-sizing:border-box}#leaderboard-close-btn{position:absolute;top:10px;right:10px;background:none;border:none;font-size:32px;color:#666;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .3s}#leaderboard-close-btn:hover{background:#0000001a}#leaderboard-modal h2{font-size:28px;color:#333;margin-bottom:16px;text-align:center;font-weight:700;text-shadow:0 2px 4px rgba(0,0,0,.1);background:linear-gradient(135deg,#d4af37,gold);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}#leaderboard-content{min-height:200px}.leaderboard-loading,.leaderboard-error,.leaderboard-empty{text-align:center;padding:40px;color:#666;font-size:18px}.leaderboard-error{color:#f44336}#leaderboard-list{display:flex;flex-direction:column;gap:2px;min-width:0;overflow-x:visible}.leaderboard-header{display:grid;grid-template-columns:45px 1fr 85px 70px;gap:8px;padding:12px 8px;background:linear-gradient(135deg,#ffd70026,#ffc1251a);border-radius:10px;font-weight:700;color:#333;font-size:12px;margin-bottom:12px;border:1px solid rgba(255,215,0,.2);box-shadow:0 2px 8px #0000001a;min-width:0;width:100%;box-sizing:border-box}.leaderboard-entry{display:grid;grid-template-columns:45px 1fr 85px 70px;gap:8px;padding:10px 8px;background:#ffffffe6;border-radius:8px;transition:all .2s;border:1px solid rgba(0,0,0,.05);min-width:0;width:100%;box-sizing:border-box}.leaderboard-entry:hover{background:#fff;transform:translate(2px);box-shadow:0 2px 8px #0000001a;border-color:#ffd7004d}.leaderboard-entry.current-user{background:linear-gradient(135deg,#4caf5026,#4caf5040);border:2px solid #4CAF50;font-weight:700;box-shadow:0 2px 12px #4caf504d}.leaderboard-col-rank{text-align:center;font-weight:700;color:#555;font-size:13px;display:flex;align-items:center;justify-content:center;min-width:0}.leaderboard-col-name{color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;align-items:center;font-weight:500;font-size:13px;min-width:0}.leaderboard-col-coins{text-align:right;font-weight:700;color:#d4af37;font-size:13px;display:flex;align-items:center;justify-content:flex-end;gap:3px;white-space:nowrap;min-width:0}.leaderboard-col-altitude{text-align:right;color:#666;font-size:12px;display:flex;align-items:center;justify-content:flex-end;white-space:nowrap;min-width:0;font-weight:500}#leaderboard-user-rank{margin-top:30px;padding-top:24px;border-top:2px solid rgba(255,215,0,.3)}.leaderboard-separator{text-align:center;font-weight:700;color:#4caf50;margin-bottom:12px;font-size:16px;text-transform:uppercase;letter-spacing:1px}