:root{--bg-dark:#0a0a12;--bg-card:#12121f;--border-color:rgba(34,211,238,0.3);--text-primary:#f0f0f0;--text-secondary:#94a3b8;--td-cyan:#22d3ee;--td-purple:#8b5cf6;--td-gold:#fbbf24;--td-red:#ef4444;--td-green:#10b981;--td-blue:#3b82f6;--td-orange:#f97316;--td-ice:#67e8f9}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-dark);color:var(--text-primary);min-height:100vh;overflow-x:hidden;display:flex;flex-direction:column}.animated-header{background:transparent !important;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.game-title,.start-title,.end-title,.hud-item,.final-score{font-family:'Orbitron',sans-serif}.start-subtitle,.diff-btn,.start-btn,.retry-btn,.submit-btn{font-family:'Rajdhani',sans-serif}.game-background{position:fixed;inset:0;background:radial-gradient(ellipse at 20% 80%,rgba(34,211,238,0.12) 0,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(139,92,246,0.08) 0,transparent 50%),radial-gradient(ellipse at 50% 50%,rgba(20,30,48,0.9) 0,transparent 70%),linear-gradient(180deg,#0a0a12 0,#0f172a 100%);z-index:-1}.game-container{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;min-height:100vh;padding:100px 1rem 2rem;flex:1}.game-header{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:1100px;margin-bottom:1rem;padding:0 1rem}.game-title{font-size:1.8rem;font-weight:900;background:linear-gradient(135deg,#22d3ee,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 30px rgba(34,211,238,0.5)}.back-btn{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:rgba(34,211,238,0.1);border:1px solid var(--border-color);border-radius:8px;color:var(--text-secondary);text-decoration:none;font-weight:500;transition:all 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i{font-size:1rem}.hud-gold{color:var(--td-gold)}.hud-wave{color:var(--td-cyan)}.hud-lives{color:var(--td-red)}.hud-score{color:var(--td-purple)}.tower-panel{width:200px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;padding:1rem;display:flex;flex-direction:column;gap:.5rem}.tower-panel-title{font-family:'Orbitron',sans-serif;font-size:.9rem;color:var(--td-cyan);text-align:center;margin-bottom:.5rem;padding-bottom:.5rem;border-bottom:1px solid var(--border-color)}.tower-btn{display:flex;align-items:center;gap:.5rem;padding:.6rem .75rem;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.1);border-radius:10px;color:var(--text-primary);cursor:pointer;transition:all .2s;font-size:.85rem}.tower-btn:hover:not(:disabled){background:rgba(34,211,238,0.15);border-color:var(--td-cyan);transform:translateX(4px)}.tower-btn.selected{background:rgba(34,211,238,0.25);border-color:var(--td-cyan);box-shadow:0 0 15px rgba(34,211,238,0.3)}.tower-btn:disabled{opacity:.4;cursor:not-allowed}.tower-tooltip{position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);background:rgba(15,23,42,0.98);border:1px solid var(--td-cyan);border-radius:10px;padding:.75rem 1rem;min-width:200px;z-index:1000;pointer-events:none;opacity:0;transition:opacity .2s;box-shadow:0 4px 20px rgba(0,0,0,0.4),0 0 15px rgba(34,211,238,0.2)}.tower-btn:hover .tower-tooltip{opacity:1}.tower-tooltip-name{font-weight:700;font-size:1rem;color:var(--td-cyan);margin-bottom:.5rem;display:flex;align-items:center;gap:.5rem}.tower-tooltip-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:.4rem 1rem;font-size:.8rem;color:rgba(255,255,255,0.85);margin-bottom:.5rem}.tower-tooltip-stats span{color:#fbbf24;font-weight:600}.tower-tooltip-special{font-size:.75rem;color:#a78bfa;padding-top:.4rem;border-top:1px solid rgba(255,255,255,0.1);font-style:italic}.tower-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0;overflow:hidden}.tower-icon img{width:100%;height:100%;object-fit:contain}.tower-info{flex:1;text-align:left}.tower-name{font-weight:600;font-size:.8rem}.tower-cost{font-size:.7rem;color:var(--td-gold)}.tower-flicko .tower-icon{background:linear-gradient(135deg,#fbbf24,#f59e0b)}.tower-glacibi .tower-icon{background:linear-gradient(135deg,#67e8f9,#06b6d4)}.tower-embark .tower-icon{background:linear-gradient(135deg,#f97316,#dc2626)}.tower-luma .tower-icon{background:linear-gradient(135deg,#fef08a,#facc15)}.tower-pybble .tower-icon{background:linear-gradient(135deg,#a1a1aa,#71717a)}.tower-wispurr .tower-icon{background:linear-gradient(135deg,#c4b5fd,#8b5cf6)}.wave-controls{margin-top:auto;padding-top:.75rem;border-top:1px solid var(--border-color)}.next-wave-btn{width:100%;padding:.75rem;background:linear-gradient(135deg,var(--td-green),#059669);border:0;border-radius:10px;color:white;font-family:'Rajdhani',sans-serif;font-size:1rem;font-weight:700;cursor:pointer;transition:all .3s;display:flex;align-items:center;justify-content:center;gap:.5rem}.next-wave-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px rgba(16,185,129,0.4)}.next-wave-btn:disabled{background:rgba(255,255,255,0.1);cursor:not-allowed}.start-screen,.end-screen{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,rgba(10,10,18,0.92) 0,rgba(10,10,18,0.98) 70%);border-radius:12px;z-index:10;padding:1.5rem;text-align:center}.hidden{display:none !important}.game-mascot{width:120px;height:120px;margin-bottom:1rem;border-radius:50%;background:linear-gradient(135deg,var(--td-cyan),var(--td-purple));display:flex;align-items:center;justify-content:center;font-size:3rem;box-shadow:0 0 40px rgba(34,211,238,0.4);animation:float 3s ease-in-out infinite}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes toastPop{0%{opacity:0;transform:translate(-50%,-50%) scale(0.8)}100%{opacity:1;transform:translate(-50%,-50%) scale(1)}}.start-title{font-size:2rem;font-weight:900;margin-bottom:.5rem;background:linear-gradient(135deg,#22d3ee,#c084fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.start-subtitle{color:var(--text-secondary);font-size:1rem;margin-bottom:1.5rem;max-width:400px}.difficulty-buttons{display:flex;gap:.75rem;margin-bottom:1.5rem;flex-wrap:wrap;justify-content:center}.diff-btn{padding:.75rem 1.5rem;border:2px solid var(--border-color);border-radius:10px;background:rgba(34,211,238,0.1);color:var(--text-primary);font-family:'Rajdhani',sans-serif;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .3s;min-width:100px}.diff-btn:hover{background:rgba(34,211,238,0.25);border-color:var(--td-cyan);transform:translateY(-2px)}.diff-btn.active{background:var(--td-cyan);border-color:var(--td-cyan);color:#0a0a12}.diff-btn .reward{display:block;font-size:.75rem;color:var(--td-gold);margin-top:.2rem}.diff-btn.active .reward{color:#0a0a12}.start-btn{padding:.9rem 2.5rem;font-family:'Orbitron',sans-serif;font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,#22d3ee,#8b5cf6);color:white;border:0;border-radius:50px;cursor:pointer;transition:all .3s;box-shadow:0 10px 30px rgba(34,211,238,0.4)}.start-btn:hover{transform:translateY(-3px);box-shadow:0 15px 40px rgba(34,211,238,0.5)}.end-title{font-size:1.8rem;margin-bottom:.5rem}.end-title.victory{color:var(--td-gold)}.end-title.defeat{color:var(--td-red)}.final-score{font-size:2rem;font-weight:900;color:var(--td-gold);margin-bottom:.25rem}.score-breakdown{color:var(--text-secondary);margin-bottom:.75rem;font-size:.9rem}.end-buttons{display:flex;gap:.75rem;margin-top:.75rem}.retry-btn,.submit-btn{padding:.6rem 1.5rem;font-family:'Rajdhani',sans-serif;font-size:.95rem;font-weight:700;border:0;border-radius:50px;cursor:pointer;transition:all .3s}.retry-btn{background:rgba(34,211,238,0.2);color:var(--td-cyan);border:2px solid var(--td-cyan)}.submit-btn{background:linear-gradient(135deg,#22c55e,#16a34a);color:white}.retry-btn:hover,.submit-btn:hover{transform:translateY(-2px)}.instructions-bar{width:100%;max-width:1100px;background:linear-gradient(135deg,rgba(34,211,238,0.12),rgba(139,92,246,0.08));border:1px solid rgba(34,211,238,0.25);border-radius:12px;padding:.6rem 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img{width:100%;height:100%;object-fit:contain}.upgrade-panel-title{font-weight:700;font-size:.9rem;color:var(--td-cyan)}.upgrade-panel-level{font-size:.75rem;color:var(--text-secondary)}.upgrade-panel-stats{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px;font-size:.75rem}.upgrade-stat{background:rgba(255,255,255,0.05);padding:4px 8px;border-radius:6px;color:var(--text-secondary)}.upgrade-stat span{color:var(--td-cyan);font-weight:600}.upgrade-panel-btns{display:flex;gap:6px}.upgrade-btn{flex:1;padding:8px;border-radius:8px;border:0;font-size:.8rem;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:4px}.upgrade-btn.upgrade{background:linear-gradient(135deg,var(--td-cyan),var(--td-purple));color:white}.upgrade-btn.upgrade:disabled{background:rgba(255,255,255,0.1);cursor:not-allowed}.upgrade-btn.sell{background:rgba(239,68,68,0.2);color:var(--td-red);border:1px solid 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h4{color:var(--td-gold);font-size:.8rem;margin-bottom:6px;font-weight:600}.multiplier-buttons{display:flex;gap:6px;justify-content:center;flex-wrap:wrap}.multiplier-btn{padding:5px 10px;border-radius:6px;border:1px solid rgba(34,211,238,0.4);background:rgba(34,211,238,0.1);color:var(--td-cyan);font-family:'Rajdhani',sans-serif;font-size:.8rem;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:4px}.multiplier-btn:hover{background:rgba(34,211,238,0.2);transform:translateY(-2px)}.multiplier-btn.gold{border-color:rgba(251,191,36,0.4);background:rgba(251,191,36,0.1);color:var(--td-gold)}.game-leaderboard{margin-top:20px;background:var(--bg-card);border-radius:16px;border:1px solid var(--border-color);overflow:hidden;max-width:1100px;width:100%}.leaderboard-header{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:rgba(34,211,238,0.08);border-bottom:1px solid var(--border-color)}.leaderboard-header h3{font-family:'Orbitron',sans-serif;font-size:1rem;color:var(--td-gold);display:flex;align-items:center;gap:8px}.leaderboard-reset{font-size:.75rem;color:var(--text-secondary);background:rgba(255,255,255,0.05);padding:4px 10px;border-radius:12px}.leaderboard-list{padding:10px;max-height:280px;overflow-y:auto}.leaderboard-entry{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;margin-bottom:4px;background:rgba(255,255,255,0.02);transition:background .2s}.leaderboard-entry:hover{background:rgba(255,255,255,0.05)}.leaderboard-entry.current-user{background:rgba(34,211,238,0.12);border:1px solid rgba(34,211,238,0.25)}.leaderboard-rank{font-family:'Orbitron',sans-serif;font-size:.9rem;font-weight:700;width:28px;text-align:center}.leaderboard-rank.gold{color:#fbbf24}.leaderboard-rank.silver{color:#94a3b8}.leaderboard-rank.bronze{color:#cd7f32}.leaderboard-name{flex:1;font-weight:500}.leaderboard-name a{color:inherit;text-decoration:none;transition:color .2s}.leaderboard-name a:hover{color:var(--td-gold)}.leaderboard-score{font-family:'Orbitron',sans-serif;font-weight:700;color:var(--td-cyan)}.leaderboard-empty,.leaderboard-loading{text-align:center;padding:20px;color:var(--text-secondary)}@media(max-width:900px){.game-wrapper{flex-direction:column}.tower-panel{width:100%;flex-direction:row;flex-wrap:wrap}.tower-panel-title{width:100%}.tower-btn{flex:1;min-width:140px}.wave-controls{width:100%;margin-top:.5rem;padding-top:.5rem}}@media(max-width:768px){.game-container{padding:90px 12px 24px}.game-header{flex-direction:column;gap:12px;align-items:center;text-align:center}.game-card{padding:1rem}.start-screen,.end-screen{overflow-y:auto;padding:1rem}.tower-mascot{width:70px !important;height:70px !important}.start-title{font-size:1.6rem !important}.start-subtitle{font-size:.85rem !important}.diff-btn{padding:.5rem .8rem !important;font-size:.8rem !important}.start-btn{padding:.7rem 1.5rem !important;font-size:1rem !important}}@media(max-width:600px){.game-container{padding:85px 10px 20px}#game-canvas{max-width:100%;height:auto !important}.game-title{font-size:1.3rem}.tower-btn{min-width:110px;padding:10px}.game-card{padding:.75rem}.tower-mascot{width:55px !important;height:55px !important;margin-bottom:.5rem !important}.start-title,.end-title{font-size:1.3rem !important}.start-subtitle{font-size:.75rem !important;margin-bottom:.5rem !important}.difficulty-selector{gap:6px !important;margin-bottom:.5rem !important}.diff-btn{padding:.4rem .6rem !important;font-size:.75rem !important;min-width:70px !important}.start-btn{padding:.5rem 1rem !important;font-size:.85rem !important}.final-score{font-size:1.5rem !important}.score-breakdown{font-size:.75rem !important;margin-bottom:.5rem !important}.retry-btn,.submit-btn{padding:.5rem 1rem !important;font-size:.85rem !important}.end-buttons{gap:.5rem !important;flex-wrap:wrap}}@media(max-width:400px){.game-container{padding:80px 8px 16px}.tower-btn{min-width:100%}.game-card{padding:.5rem}.tower-mascot{width:45px !important;height:45px !important}.start-title,.end-title{font-size:1.1rem !important}.diff-btn{min-width:60px !important}.final-score{font-size:1.3rem !important}.score-breakdown{font-size:.7rem !important}.retry-btn,.submit-btn{padding:.4rem .8rem !important;font-size:.75rem !important}}