*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0a0a0a;--bg-secondary: #1a1a1a;--bg-tertiary: #2a2a2a;--accent-primary: #00ff88;--accent-secondary: #0088ff;--accent-danger: #ff4444;--text-primary: #ffffff;--text-secondary: #cccccc;--text-muted: #888888;--border-radius: 8px;--border-color: #333333;--shadow-small: 0 2px 4px rgba(0, 0, 0, .3);--shadow-medium: 0 4px 8px rgba(0, 0, 0, .4);--shadow-large: 0 8px 16px rgba(0, 0, 0, .5);--bg-luxury: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);--border-luxury: linear-gradient(135deg, #444, #222, #444);--shadow-luxury: 0 8px 32px rgba(0, 255, 136, .1), 0 4px 16px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(0, 255, 136, .3);--shadow-glow-large: 0 0 40px rgba(0, 255, 136, .2);--accent-glow: rgba(0, 255, 136, .3);--transition-luxury: all .4s cubic-bezier(.4, 0, .2, 1);--transition-bounce: all .3s cubic-bezier(.68, -.55, .265, 1.55);--font-family: "Inter", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--header-height: 50px;--transport-height: 60px;--track-height-mobile: 100px;--effects-height: 40px}body{font-family:var(--font-family);background:linear-gradient(145deg,#1a1a1a,#0d0d0d),repeating-linear-gradient(45deg,transparent,transparent 60px,rgba(255,255,255,.005) 60px,rgba(255,255,255,.005) 120px);color:var(--text-primary);overflow-x:hidden;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;position:relative}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 20%,rgba(0,255,136,.03),transparent 40%),radial-gradient(circle at 80% 80%,rgba(0,136,255,.03),transparent 40%);animation:ambient-lighting 8s ease-in-out 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var(--accent-primary);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:var(--spacing-md)}.loading-screen p{color:var(--text-secondary);font-size:var(--font-size-lg)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-screen{position:fixed;top:0;left:0;width:100vw;height:100vh;background:var(--bg-primary);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--spacing-xl)}.error-screen h1{color:var(--accent-danger);margin-bottom:var(--spacing-md);font-size:var(--font-size-2xl)}.error-screen p{color:var(--text-secondary);margin-bottom:var(--spacing-lg);max-width:500px;line-height:1.6}.error-screen button{background:var(--accent-primary);color:var(--bg-primary);border:none;padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--border-radius);font-size:var(--font-size-base);cursor:pointer;transition:all .2s ease}.error-screen button:hover{background:var(--accent-secondary);transform:translateY(-1px)}.app-container{display:flex;flex-direction:column;height:100vh;width:100vw;overflow:hidden;background:var(--bg-primary)}.app-header{height:var(--header-height);background:linear-gradient(145deg,#4a4a4a,#333),linear-gradient(90deg,#404040,#363636,#404040);border-bottom:2px solid #222;position:sticky;top:0;z-index:1000;box-shadow:inset 0 2px 4px rgba(255,255,255,.1),inset 0 -2px 4px rgba(0,0,0,.3),0 4px 12px rgba(0,0,0,.4);border-top:1px solid #555}.app-logo{display:flex;align-items:center;gap:var(--spacing-sm)}.app-logo h1{font-size:var(--font-size-xl);font-weight:700;background:linear-gradient(45deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-controls{display:flex;align-items:center;gap:var(--spacing-md)}.app-sidebar{grid-area:sidebar;background:var(--bg-secondary);border-right:1px solid var(--border-color);overflow-y:auto;padding:var(--spacing-md)}.app-transport{grid-area:transport;background:var(--bg-secondary);border-top:1px solid var(--border-color);padding:var(--spacing-md);display:flex;align-items:center;justify-content:center;gap:var(--spacing-lg);box-shadow:var(--shadow-small)}.btn{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius);font-size:var(--font-size-base);cursor:pointer;transition:all .2s 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rgba(0,255,136,.3)}.waveform{flex:1;height:60px;background:var(--bg-primary);border-radius:var(--border-radius);position:relative;overflow:hidden}.waveform canvas{width:100%;height:100%;display:block}.track-controls{display:flex;flex-direction:column;gap:var(--spacing-sm);min-width:150px}.control-row{display:flex;gap:var(--spacing-sm);align-items:center}.slider{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;background:var(--bg-tertiary);outline:none;transition:background .2s ease}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent-primary);cursor:pointer;transition:all .2s ease}.slider::-webkit-slider-thumb:hover{background:var(--accent-secondary);transform:scale(1.1)}.slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--accent-primary);cursor:pointer;border:none;transition:all .2s ease}@media (max-width: 768px){.app-container{grid-template-areas:"header" "main" "transport";grid-template-columns:1fr;grid-template-rows:var(--header-height) 1fr auto}.app-sidebar{display:none}.track{flex-direction:column;height:auto;padding:var(--spacing-sm)}.track-controls{width:100%;flex-direction:row;flex-wrap:wrap}.transport-bar{height:45px;min-height:45px;padding:8px 12px}.transport-controls{gap:8px;flex-wrap:wrap}.transport-controls .btn{padding:6px 10px;font-size:.85rem;min-width:auto}.utility-controls{display:flex;gap:4px}.btn-utility{padding:4px 8px;font-size:.7rem;min-width:32px}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.mb-md{margin-bottom:var(--spacing-md)}.mt-md{margin-top:var(--spacing-md)}.p-md{padding:var(--spacing-md)}.btn:focus,.slider:focus{outline:2px solid 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var(--border-color)}.expensive-price{color:var(--accent-danger);font-weight:700;text-decoration:line-through;font-size:var(--font-size-lg)}.affordable-price{color:var(--accent-primary);font-weight:700;font-size:var(--font-size-xl)}.savings{background:var(--accent-primary);color:var(--bg-primary);padding:var(--spacing-xs) var(--spacing-sm);border-radius:12px;font-size:var(--font-size-sm);font-weight:700;margin-left:var(--spacing-sm);animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.value-proposition{background:var(--bg-secondary);border-radius:var(--border-radius);padding:var(--spacing-lg);margin:var(--spacing-lg) 0;border:1px solid var(--border-color)}.value-proposition h3{color:var(--accent-primary);margin-bottom:var(--spacing-md);text-align:center}.comparison-points{display:grid;gap:var(--spacing-md)}.point{padding:var(--spacing-md);background:rgba(0,255,136,.05);border-left:3px solid var(--accent-primary);border-radius:0 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h3{color:var(--accent-danger);margin-bottom:var(--spacing-md)}.upgrade-message{background:rgba(0,255,136,.1);border:1px solid var(--accent-primary);border-radius:var(--border-radius);padding:var(--spacing-md);margin-top:var(--spacing-md);color:var(--text-primary)}.upgrade-prompt{text-align:center;padding-top:var(--spacing-lg);border-top:1px solid var(--border-color)}@media (max-width: 768px){.pricing-comparison{grid-template-columns:1fr}.plan-card.popular{transform:none}.benefits-grid{grid-template-columns:1fr}.subscription-header{flex-direction:column;gap:var(--spacing-sm)}.usage-item{flex-direction:column;align-items:stretch}.usage-item label{min-width:auto;text-align:center}}@media print{.app-container{display:none}body:after{content:"Loop Live - Web Audio Application";display:block;text-align:center;font-size:24px;margin-top:50px}}.header-main{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 var(--spacing-md);height:100%;position:relative;min-height:var(--header-height)}.app-logo{grid-column:2;justify-self:center;align-self:center;display:flex;align-items:center;justify-content:center;transform:translateY(-3.6mm)}.header-actions{grid-column:3;justify-self:end;align-self:center;display:flex;align-items:center;gap:var(--spacing-sm);height:100%}@media (max-width: 768px){.header-main{display:flex;justify-content:space-between;align-items:center}.app-logo{position:absolute;left:50%;top:50%;transform:translate(-50%,calc(-50% - 3.6mm));z-index:1}.header-actions{position:relative;z-index:2;align-self:center;height:100%}}@media (max-width: 480px){.header-main{display:flex;justify-content:space-between;align-items:center}.app-logo{position:static;transform:translateY(-3.6mm);flex:1;justify-content:center;align-items:center}.header-actions{position:static;flex-shrink:0;align-items:center;height:100%}}.beat-indicator-ring{position:absolute;top:-8px;left:-8px;right:-8px;bottom:-8px;pointer-events:none;z-index:1}.beat-segment{position:absolute;top:50%;left:50%;width:100%;height:100%;transform-origin:center}.beat-dot{position:absolute;top:4px;left:50%;width:4px;height:4px;background:rgba(255,255,255,.3);border-radius:50%;transform:translate(-50%);transition:all .2s cubic-bezier(.4,0,.2,1)}.beat-dot:before{content:"";position:absolute;top:50%;left:50%;width:100%;height:100%;background:inherit;border-radius:50%;transform:translate(-50%,-50%);opacity:0;transition:all .3s ease}.beat-segment.active .beat-dot{background:var(--accent-primary);box-shadow:0 0 8px var(--accent-primary);transform:translate(-50%) scale(1.5);animation:beat-fadein .3s ease-out}.beat-segment.active .beat-dot:before{animation:beat-ripple .6s ease-out}.beat-segment.current .beat-dot{background:#fff;box-shadow:0 0 12px #fff,0 0 20px var(--accent-primary);transform:translate(-50%) scale(2);animation:beat-pulse .5s ease-out}@keyframes beat-pulse{0%{transform:translate(-50%) scale(1.5);opacity:.8;filter:brightness(1)}30%{transform:translate(-50%) scale(2.5);opacity:1;filter:brightness(1.5) saturate(1.3)}60%{transform:translate(-50%) scale(2.2);opacity:1;filter:brightness(1.2) saturate(1.1)}to{transform:translate(-50%) scale(2);opacity:1;filter:brightness(1)}}@keyframes beat-ripple{0%{opacity:.8;transform:translate(-50%) scale(1)}50%{opacity:.4;transform:translate(-50%) scale(3)}to{opacity:0;transform:translate(-50%) scale(5)}}@keyframes beat-fadein{0%{opacity:0;transform:translate(-50%) scale(.5)}70%{opacity:.8;transform:translate(-50%) scale(1.3)}to{opacity:1;transform:translate(-50%) scale(1.5)}}.track-pedal.recording 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var(--border-color);border-radius:var(--border-radius);margin-bottom:24px}.plan-card.premium{border-color:var(--accent-primary);background:linear-gradient(135deg,rgba(0,255,136,.1),var(--bg-secondary))}.plan-card h4{color:var(--text-primary);font-size:var(--font-size-xl);margin-bottom:8px}.plan-price{color:var(--accent-primary);font-size:var(--font-size-xl);font-weight:600;margin-bottom:8px}.plan-description{color:var(--text-secondary);margin-bottom:16px}.plan-features{list-style:none;margin:16px 0}.plan-features li{color:var(--text-secondary);font-size:var(--font-size-sm);margin:8px 0;padding-left:20px;position:relative}.plan-features li:before{content:"✓";position:absolute;left:0;color:var(--accent-primary);font-weight:700}.subscription-hero{text-align:center;margin-bottom:32px;padding:24px;background:var(--bg-secondary);border-radius:var(--border-radius);border:1px solid var(--accent-primary)}.subscription-hero h3{color:var(--text-primary);font-size:var(--font-size-2xl);margin-bottom:12px}.price-highlight{color:var(--accent-primary);font-size:2.5rem;font-weight:700;margin:16px 0;text-shadow:0 0 20px rgba(0,255,136,.5)}.savings{color:var(--text-secondary);font-size:var(--font-size-sm);font-style:italic}.benefits-list{margin:24px 0}.benefits-list h4{color:var(--text-primary);font-size:var(--font-size-lg);margin-bottom:16px}.benefits-list ul{list-style:none}.benefits-list li{color:var(--text-secondary);margin:12px 0;padding:12px 16px;background:var(--bg-secondary);border-radius:var(--border-radius);border-left:3px solid var(--accent-primary);transition:var(--transition-luxury)}.benefits-list li:hover{background:rgba(0,255,136,.05);transform:translate(4px)}.signup-benefits{margin-top:32px;padding:24px;background:var(--bg-secondary);border-radius:var(--border-radius);border:1px solid var(--border-color)}.signup-benefits h3{color:var(--accent-primary);font-size:var(--font-size-lg);margin-bottom:16px;text-align:center}.signup-benefits ul{list-style:none}.signup-benefits li{color:var(--text-secondary);margin:8px 0;font-size:var(--font-size-sm)}.btn-upgrade,.btn-premium{width:100%;padding:16px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border:none;border-radius:var(--border-radius);color:var(--bg-primary);font-size:var(--font-size-base);font-weight:600;cursor:pointer;transition:var(--transition-luxury);text-transform:uppercase;letter-spacing:.5px;margin:16px 0}.btn-upgrade:hover,.btn-premium:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}.btn-secondary,.btn-manage{width:100%;padding:12px;background:transparent;border:1px solid var(--border-color);border-radius:var(--border-radius);color:var(--text-secondary);font-size:var(--font-size-base);cursor:pointer;transition:var(--transition-luxury);margin:8px 0}.btn-secondary:hover,.btn-manage:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.subscription-actions{text-align:center;margin:24px 0}.subscription-note{color:var(--text-muted);font-size:var(--font-size-sm);text-align:center;margin-top:12px;font-style:italic}.account-actions{text-align:center;margin-top:24px;padding-top:24px;border-top:1px solid var(--border-color)}@keyframes slideIn{0%{opacity:0;transform:scale(.9) translateY(-20px)}to{opacity:1;transform:scale(1) translateY(0)}}.user-status{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--bg-secondary);border-radius:var(--border-radius);border:1px solid var(--border-color);cursor:pointer;transition:var(--transition-luxury)}.user-status:hover{border-color:var(--accent-primary);background:rgba(0,255,136,.05)}.user-status.premium{border-color:var(--accent-primary);background:linear-gradient(135deg,rgba(0,255,136,.1),var(--bg-secondary))}.user-status .status-text{color:var(--text-primary);font-size:var(--font-size-sm);font-weight:500}.user-status .status-badge{background:var(--accent-primary);color:var(--bg-primary);padding:2px 8px;border-radius:12px;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.user-status.free .status-badge{background:var(--text-muted)}.track-limit-warning{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--bg-luxury);border:1px solid var(--accent-danger);border-radius:var(--border-radius);padding:24px;max-width:400px;text-align:center;z-index:1001;animation:slideIn .3s ease-out;box-shadow:var(--shadow-luxury)}.track-limit-warning h3{color:var(--accent-danger);font-size:var(--font-size-lg);margin-bottom:12px}.track-limit-warning p{color:var(--text-secondary);margin-bottom:20px;line-height:1.5}.track-limit-warning .upgrade-highlight{color:var(--accent-primary);font-weight:600}.export-section{margin-left:var(--spacing-md);display:flex;align-items:center}.export-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;background:var(--bg-luxury);border:1px solid var(--border-color);border-radius:var(--border-radius);color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:var(--transition-luxury);text-decoration:none;box-shadow:var(--shadow-small)}.export-btn:hover{background:var(--bg-tertiary);border-color:var(--accent-primary);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.export-btn:active{transform:translateY(0);box-shadow:var(--shadow-small)}.export-btn.premium-locked{background:var(--bg-secondary);border-color:#555;color:var(--text-muted);cursor:default;opacity:.7}.export-btn.premium-locked:hover{background:var(--bg-secondary);border-color:#666;box-shadow:var(--shadow-small);transform:none;color:var(--text-secondary)}.export-text{font-weight:500}.lock-icon{font-size:12px;opacity:.8;margin-left:2px}.export-btn.premium-locked .lock-icon{animation:lockPulse 2s ease-in-out infinite}@keyframes lockPulse{0%,to{opacity:.6}50%{opacity:1}}.track-premium-lock{position:absolute;top:8px;right:8px;background:rgba(0,0,0,.8);border-radius:50%;width:24px;height:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10;border:1px solid #555;transition:var(--transition-luxury)}.track-premium-lock:hover{background:rgba(0,0,0,.9);border-color:var(--accent-primary);transform:scale(1.1);box-shadow:0 0 10px rgba(0,255,136,.3)}.track-lock-icon{font-size:12px;color:var(--text-muted);animation:lockPulse 2s ease-in-out infinite}.track-premium-lock:hover .track-lock-icon{color:var(--text-primary)}.recording-countdown-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:rgba(0,0,0,.8);display:flex;align-items:center;justify-content:center;z-index:9999;backdrop-filter:blur(5px)}.countdown-container{text-align:center;color:#fff}.countdown-number{font-size:8rem;font-weight:900;color:#ff6b35;text-shadow:0 0 30px 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768px){.export-modal-content{width:95%}}.export-close-button{position:absolute;top:1.5rem;right:1.5rem;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);color:var(--text-secondary);font-size:1.5rem;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:8px;transition:var(--transition-luxury);z-index:10}.export-close-button:hover{background:rgba(255,68,68,.2);border-color:var(--accent-danger);color:var(--accent-danger);transform:scale(1.05);box-shadow:0 0 20px rgba(255,68,68,.3)}.export-header{padding:2rem;border-bottom:1px solid rgba(0,255,136,.2);background:linear-gradient(135deg,rgba(0,255,136,.05) 0%,transparent 100%)}.export-header h3{margin:0;color:var(--text-primary);font-size:1.75rem;font-weight:700;background:linear-gradient(135deg,#ffffff 0%,var(--accent-primary) 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0;color:var(--text-secondary);font-size:.875rem;line-height:1.6}.format-info strong{color:var(--accent-primary);font-weight:600}.premium-notice{margin-top:1rem;padding:.75rem 1rem;background:rgba(255,215,0,.1);border:1px solid rgba(255,215,0,.3);border-radius:6px;color:gold}.export-progress{margin-top:1rem}.progress-bar{width:100%;height:6px;background:rgba(255,255,255,.1);border-radius:3px;overflow:hidden;margin-bottom:.5rem}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent-primary) 0%,#00cc66 100%);transition:width .3s ease;box-shadow:0 0 10px var(--accent-primary)}.progress-text{font-size:.875rem;color:var(--text-secondary);text-align:center}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}