@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap";*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #080c18;--bg-secondary: #0d1224;--bg-card: #111827;--bg-card-hover: #1a2340;--border-subtle: rgba(99, 130, 255, .12);--border-active: rgba(99, 200, 255, .4);--text-primary: #e8ecf4;--text-secondary: #8b95b0;--text-muted: #525e78;--accent-blue: #6b8aff;--accent-cyan: #38d9f5;--accent-gold: #fbbf24;--accent-green: #34d399;--accent-red: #f87171;--accent-purple: #a78bfa;--shadow-glow: 0 0 20px rgba(99, 130, 255, .1);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px}body{background:var(--bg-primary);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;overflow:hidden;height:100vh;-webkit-font-smoothing:antialiased}#app{display:flex;flex-direction:column;height:100vh}header{display:flex;align-items:center;justify-content:space-between;padding:10px 24px;background:linear-gradient(180deg,#0d1224fa,#0d1224eb);border-bottom:1px solid var(--border-subtle);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:10}header h1{font-size:1.15rem;font-weight:800;background:linear-gradient(135deg,var(--accent-blue),var(--accent-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:1.5px;text-transform:uppercase}.stats{display:flex;gap:6px}.stat{font-size:.82rem;font-weight:500;background:var(--bg-card);padding:5px 12px;border-radius:20px;border:1px solid var(--border-subtle);color:var(--text-secondary)}.stat strong{color:var(--accent-gold);font-weight:700}.difficulty-label{font-weight:700;letter-spacing:.5px;color:var(--text-primary)!important}.game-area{display:flex;flex:1;overflow:hidden}.sidebar{width:240px;background:var(--bg-secondary);border-right:1px solid var(--border-subtle);padding:14px;display:flex;flex-direction:column;gap:10px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:rgba(99,130,255,.2) transparent}.sidebar::-webkit-scrollbar{width:4px}.sidebar::-webkit-scrollbar-thumb{background:#6382ff33;border-radius:4px}.sidebar h2{font-size:.75rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:1.5px;padding-bottom:6px;border-bottom:1px solid var(--border-subtle)}.tower-btn{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:12px;padding:10px 12px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);cursor:pointer;font-size:.82rem;transition:all .2s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;width:100%}.tower-btn:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,rgba(99,130,255,.05),transparent);opacity:0;transition:opacity .2s}.tower-btn:hover{background:var(--bg-card-hover);border-color:#6382ff40;transform:translateY(-1px);box-shadow:0 4px 12px #0000004d}.tower-btn:hover:before{opacity:1}.tower-btn.active{border-color:var(--accent-green);background:#34d39914;box-shadow:0 0 16px #34d39926,inset 0 0 20px #34d3990d}.tower-btn.too-expensive{opacity:.4;filter:grayscale(.3)}.tower-icon{font-size:1.3rem;filter:drop-shadow(0 1px 2px rgba(0,0,0,.3))}.tower-name{flex:1;font-weight:600;font-size:.82rem}.tower-cost{color:var(--accent-gold);font-size:.78rem;font-weight:600}.tower-key{color:var(--text-muted);font-size:.7rem;font-weight:500;background:#ffffff0d;padding:1px 5px;border-radius:3px}#tower-info{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:12px;min-height:80px}#tower-info .hint{color:var(--text-muted);font-size:.78rem;font-style:italic}.tower-detail h3{font-size:.9rem;font-weight:700;margin-bottom:8px}.tower-detail p{font-size:.78rem;margin-bottom:4px;color:var(--text-secondary)}.tower-detail strong{color:var(--accent-gold)}.max-level{color:var(--accent-green);font-style:italic;margin-top:8px;font-size:.78rem}.action-btn{display:block;width:100%;margin-top:8px;padding:8px 10px;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:.78rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1);letter-spacing:.3px}.action-btn.upgrade{background:linear-gradient(135deg,#1a5c2a,#236b35);color:var(--text-primary);box-shadow:0 2px 8px #22c55e26}.action-btn.upgrade:hover:not(:disabled){background:linear-gradient(135deg,#22803a,#2d9344);box-shadow:0 4px 16px #22c55e40;transform:translateY(-1px)}.action-btn.upgrade:disabled{background:#ffffff0d;color:var(--text-muted);cursor:not-allowed;box-shadow:none}.action-btn.sell{background:linear-gradient(135deg,#5c1a1a,#6b2323);color:var(--text-primary);box-shadow:0 2px 8px #f871711a}.action-btn.sell:hover{background:linear-gradient(135deg,#802222,#932d2d);box-shadow:0 4px 16px #f8717133;transform:translateY(-1px)}.start-btn{padding:12px;background:linear-gradient(135deg,#1e3a8a,#2563eb);color:var(--text-primary);border:1px solid rgba(59,130,246,.3);border-radius:var(--radius-md);cursor:pointer;font-size:.85rem;font-weight:700;transition:all .2s cubic-bezier(.4,0,.2,1);margin-top:auto;text-transform:uppercase;letter-spacing:.5px;box-shadow:0 4px 16px #2563eb33}.start-btn:hover:not(:disabled){background:linear-gradient(135deg,#2563eb,#3b82f6);box-shadow:0 6px 24px #2563eb59;transform:translateY(-1px)}.start-btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.speed-controls{display:flex;gap:4px}.speed-btn{flex:1;padding:7px 4px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;font-size:.72rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1)}.speed-btn:hover{background:var(--bg-card-hover);border-color:#6382ff40}.speed-btn.active{border-color:var(--accent-gold);background:#fbbf2414;color:var(--accent-gold);box-shadow:0 0 12px #fbbf241f}.quit-btn{padding:8px;background:#f871710f;border:1px solid rgba(248,113,113,.15);border-radius:var(--radius-sm);color:var(--accent-red);cursor:pointer;font-size:.8rem;font-weight:600;transition:all .2s}.quit-btn:hover{background:#f871711f;border-color:#f871714d}.volume-control{display:flex;flex-direction:column;gap:5px}.volume-control label{font-size:.78rem;color:var(--text-muted);font-weight:500}#volume-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:4px;background:#6382ff1f;border-radius:4px;outline:none;cursor:pointer}#volume-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;background:var(--accent-blue);border-radius:50%;cursor:pointer;box-shadow:0 0 8px #6b8aff66;transition:transform .15s}#volume-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}#volume-slider::-moz-range-thumb{width:14px;height:14px;background:var(--accent-blue);border-radius:50%;border:none;cursor:pointer;box-shadow:0 0 8px #6b8aff66}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:32px 40px;text-align:center;min-width:340px;box-shadow:0 24px 64px #00000080,var(--shadow-glow)}.modal h2{font-size:1.3rem;font-weight:800;color:var(--accent-red);margin-bottom:8px}.modal p{font-size:.9rem;color:var(--text-secondary);margin-bottom:24px}.modal-actions{display:flex;gap:12px;justify-content:center}.modal-btn{padding:10px 28px;border:1px solid;border-radius:var(--radius-md);cursor:pointer;font-size:.85rem;font-weight:700;transition:all .2s cubic-bezier(.4,0,.2,1);letter-spacing:.3px}.modal-btn.confirm{background:linear-gradient(135deg,#5c1a1a,#6b2323);border-color:#f8717133;color:var(--text-primary)}.modal-btn.confirm:hover{background:linear-gradient(135deg,#802222,#932d2d);box-shadow:0 4px 16px #f8717133}.modal-btn.cancel{background:linear-gradient(135deg,#1e3a8a,#2563eb);border-color:#3b82f64d;color:var(--text-primary)}.modal-btn.cancel:hover{background:linear-gradient(135deg,#2563eb,#3b82f6);box-shadow:0 4px 16px #2563eb40}.controls-help{border-top:1px solid var(--border-subtle);padding-top:10px;margin-top:8px}.controls-help h3{font-size:.72rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:6px}.controls-help p{font-size:.72rem;color:var(--text-muted);margin-bottom:3px;line-height:1.4}.controls-help p strong{color:var(--text-secondary);font-weight:600}.canvas-wrapper{flex:1;display:flex;align-items:center;justify-content:center;position:relative;background:radial-gradient(ellipse at center,#0e1326,#080c18)}canvas{display:block;cursor:crosshair;border-radius:2px;box-shadow:0 0 40px #00000080,0 0 80px #6382ff08}.message{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:2rem;font-weight:900;text-align:center;pointer-events:none;text-shadow:0 2px 20px rgba(0,0,0,.8);letter-spacing:1px}.message.won{color:var(--accent-green);animation:pulse 1s ease-in-out infinite;text-shadow:0 0 30px rgba(52,211,153,.4)}.message.lost{color:var(--accent-red);animation:pulse 1s ease-in-out infinite;text-shadow:0 0 30px rgba(248,113,113,.4)}.message.build-error{color:var(--accent-gold);font-size:1.1rem;animation:fadeOut 2s ease-in-out forwards}@keyframes fadeOut{0%{opacity:1;transform:translate(-50%,-50%) translateY(0)}70%{opacity:1}to{opacity:0;transform:translate(-50%,-50%) translateY(-10px)}}@keyframes pulse{0%,to{transform:translate(-50%,-50%) scale(1)}50%{transform:translate(-50%,-50%) scale(1.04)}}.difficulty-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:24px;background:radial-gradient(ellipse at 50% 30%,rgba(99,130,255,.06) 0%,transparent 60%)}.difficulty-screen h1{font-size:2.8rem;font-weight:900;background:linear-gradient(135deg,var(--accent-blue),var(--accent-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:3px;text-transform:uppercase}.difficulty-subtitle{font-size:1rem;color:var(--text-muted);font-weight:500}.difficulty-options{display:flex;gap:20px;margin-top:10px}.difficulty-btn{display:flex;flex-direction:column;align-items:center;gap:10px;padding:28px 36px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);color:var(--text-primary);cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);min-width:190px}.difficulty-btn:hover{background:var(--bg-card-hover);border-color:#6382ff4d;transform:translateY(-6px);box-shadow:0 16px 40px #0006,0 0 30px #6382ff14}.diff-icon{font-size:2.2rem;filter:drop-shadow(0 2px 8px rgba(0,0,0,.3))}.diff-name{font-size:1.2rem;font-weight:800;letter-spacing:.5px}.diff-desc{font-size:.78rem;color:var(--text-muted);text-align:center;line-height:1.4}.faction-label{font-size:.8rem;font-weight:700;color:var(--accent-green);text-align:center;margin-bottom:12px;padding:6px 0 2px;letter-spacing:1px;text-transform:uppercase}.buff-active{color:var(--accent-green)!important;font-weight:700;animation:buffPulse 1.5s ease-in-out infinite}@keyframes buffPulse{0%,to{opacity:1}50%{opacity:.6}}.faction-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:24px;background:radial-gradient(ellipse at 50% 30%,rgba(52,211,153,.05) 0%,transparent 60%)}.faction-screen h1{font-size:2.8rem;font-weight:900;background:linear-gradient(135deg,var(--accent-green),var(--accent-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:3px;text-transform:uppercase}.faction-subtitle{font-size:1rem;color:var(--text-muted);font-weight:500}.faction-options{display:flex;gap:24px;margin-top:10px}.faction-btn{display:flex;flex-direction:column;align-items:center;gap:12px;padding:32px 36px;background:var(--bg-card);border:1px solid rgba(52,211,153,.15);border-radius:var(--radius-lg);color:var(--text-primary);cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);min-width:240px;max-width:300px}.faction-btn:hover{background:#34d3990d;border-color:#34d3994d;transform:translateY(-6px);box-shadow:0 16px 40px #0006,0 0 30px #34d39914}.faction-icon{font-size:3.2rem;filter:drop-shadow(0 4px 12px rgba(0,0,0,.3))}.faction-icon-img{width:48px;height:48px;object-fit:contain;vertical-align:middle;filter:drop-shadow(0 2px 6px rgba(0,0,0,.4));border-radius:4px}.faction-label .faction-icon-img{width:36px;height:36px;margin-right:4px}.faction-name{font-size:1.3rem;font-weight:800;color:var(--accent-green);letter-spacing:.5px}.faction-desc{font-size:.82rem;color:var(--text-secondary);text-align:center;line-height:1.5}.faction-towers{font-size:.78rem;color:var(--accent-gold);text-align:center;font-weight:600}