:root{--bg-darkest: #070913;--bg-deep: #0b0f19;--bg-panel: rgba(22, 30, 46, .65);--border-glass: rgba(255, 255, 255, .08);--border-glass-active: rgba(255, 255, 255, .18);--neon-cyan: #ff9e00;--neon-magenta: #ff007f;--neon-green: #39ff14;--neon-yellow: #fefe00;--neon-orange: #ff9f0a;--text-primary: #f3f4f6;--text-secondary: #9ca3af;--text-muted: #6b7280;--font-main: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "Space Grotesk", monospace;--transition-smooth: .2s cubic-bezier(.4, 0, .2, 1);--shadow-glow-cyan: 0 0 15px rgba(255, 158, 0, .35);--shadow-glow-magenta: 0 0 15px rgba(255, 0, 127, .35);--shadow-glow-green: 0 0 15px rgba(57, 255, 20, .4)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--bg-darkest);color:var(--text-primary);overflow:hidden;height:100vh;height:100dvh;width:100vw;-webkit-font-smoothing:antialiased}.app-container{display:grid;grid-template-rows:60px 1fr auto 140px;grid-template-columns:minmax(0,1fr);height:100vh;height:100dvh;width:100vw}.app-container.hide-piano{grid-template-rows:60px 1fr auto 0px}.app-container.hide-piano .piano-container{display:none}.header-bar{background:#0b0f19d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-glass);display:flex;justify-content:space-between;align-items:center;padding:0 24px;z-index:10;overflow-x:auto;overflow-y:hidden}.header-bar::-webkit-scrollbar{height:4px}.header-bar::-webkit-scrollbar-thumb{background:var(--border-glass);border-radius:2px}.logo-section{display:flex;align-items:center;gap:10px}.logo-emoji{font-size:24px;filter:drop-shadow(0 0 5px rgba(0,242,254,.5))}.logo-text{font-size:clamp(14px,4vw,20px);white-space:nowrap;font-weight:800;letter-spacing:1px;color:rgb(var(--active-track-color, 0, 242, 254));font-family:var(--font-mono);transition:color 1.5s ease-out,text-shadow 1.5s ease-out}.logo-text.glow{color:#fff;text-shadow:0 0 10px rgb(var(--active-track-color, 0, 242, 254)),0 0 20px rgb(var(--active-track-color, 0, 242, 254));transition:color .1s ease-in,text-shadow .1s ease-in}.midi-status-panel{display:flex;align-items:center;gap:12px}.status-indicator{width:12px;height:12px;border-radius:50%;background-color:var(--text-muted);box-shadow:0 0 4px #ffffff1a;transition:var(--transition-smooth);flex-shrink:0}.status-indicator.connected{background-color:var(--neon-green);box-shadow:0 0 10px var(--neon-green)}.midi-device-select{background:#ffffff0d;border:1px solid var(--border-glass);color:var(--text-primary);padding:6px 12px;border-radius:6px;font-family:var(--font-main);outline:none;font-size:13px;cursor:pointer;max-width:200px;min-width:0;flex-shrink:1;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.midi-device-select:focus{border-color:var(--neon-cyan)}.header-controls{display:flex;align-items:center;justify-content:center;gap:20px;flex:1}.top-control-group{display:flex;align-items:center;gap:8px;background:#0b0f1973;padding:4px 12px;border-radius:8px;border:1px solid var(--border-glass)}.app-container{--left-panel-width: 280px;--right-panel-width: 340px;--handle-width: 12px}.app-container.show-left{--left-panel-width: 280px !important}.app-container.hide-left{--left-panel-width: 0px !important}.app-container.show-right{--right-panel-width: 340px !important}.app-container.hide-right{--right-panel-width: 0px !important}.app-container.hide-left .sidebar-panel:first-child,.app-container.hide-right .right-sidebar{padding:0;border:none}.main-area{display:grid;grid-template-columns:var(--left-panel-width) var(--handle-width) 1fr var(--handle-width) var(--right-panel-width);height:100%;overflow:hidden;background-color:var(--bg-deep);transition:grid-template-columns .35s cubic-bezier(.4,0,.2,1)}.panel-handle{width:100%;height:100%;background-color:var(--bg-darkest);border-left:1px solid var(--border-glass);border-right:1px solid var(--border-glass);cursor:ew-resize;position:relative;transition:background-color .2s,opacity .3s;z-index:20}.panel-handle:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);height:40px;width:2px;background-color:var(--text-muted);border-radius:2px;transition:background-color .2s,height .2s}.panel-handle:hover{background-color:#ffffff0d}.panel-handle:hover:after{background-color:var(--neon-cyan);height:60px}.panel-handle.pulsing{animation:handlePulse 2s infinite ease-in-out}.panel-handle.pulsing:after{background-color:var(--neon-cyan)}@keyframes handlePulse{0%{background-color:var(--bg-darkest);box-shadow:inset 0 0 #00f2fe00}50%{background-color:#00f2fe1a;box-shadow:inset 0 0 12px #00f2fe4d}to{background-color:var(--bg-darkest);box-shadow:inset 0 0 #00f2fe00}}.sidebar-panel{background:#0b0f1973;border-right:1px solid var(--border-glass);padding:20px;display:flex;flex-direction:column;gap:24px;overflow-y:auto;transition:opacity .3s ease,padding .35s cubic-bezier(.4,0,.2,1),visibility .35s,width .35s}.sidebar-panel.right-sidebar{border-right:none;border-left:1px solid var(--border-glass);background:#0b0f198c}.app-container.focus-mode{--left-panel-width: 0px !important;--right-panel-width: 0px !important;--handle-width: 0px !important}.app-container.focus-mode .sidebar-panel{opacity:0;visibility:hidden;padding:0;border:none;pointer-events:none}.panel-title{font-family:var(--font-mono);font-size:15px;font-weight:700;text-transform:uppercase;color:var(--text-secondary);letter-spacing:1.5px;margin-bottom:12px;border-left:3px solid var(--neon-cyan);padding-left:8px}.panel-title.pink{border-left-color:var(--neon-magenta)}.center-content{display:grid;grid-template-rows:1fr;height:100%;overflow:hidden;min-width:0}.canvas-container{position:relative;width:100%;height:100%;overflow:hidden;min-width:0}canvas{width:100%;height:100%;display:block}.control-bar{background:#0b0f19e6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border-glass);display:flex;justify-content:space-between;align-items:center;padding:0 30px;z-index:10}.card-setting{background:var(--bg-panel);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-glass);border-radius:10px;padding:16px;display:flex;flex-direction:column;gap:12px}.control-label{font-size:13px;color:var(--text-secondary);font-weight:500;display:flex;justify-content:space-between}.control-value{color:var(--neon-cyan);font-family:var(--font-mono);font-weight:700}.btn-group{display:grid;grid-template-columns:1fr 1fr;gap:8px}.btn-pill{background:#ffffff0d;border:1px solid var(--border-glass);color:var(--text-primary);padding:8px 12px;border-radius:6px;font-family:var(--font-main);font-size:13px;font-weight:500;cursor:pointer;transition:var(--transition-smooth);text-align:center;flex-shrink:0}.header-icon-btn{width:44px!important;height:44px!important;padding:0!important;display:flex!important;align-items:center!important;justify-content:center!important;font-size:24px!important;line-height:1!important;border-radius:12px!important}.btn-pill:hover{background:#ffffff1a;border-color:#ffd70080;box-shadow:0 0 8px #ffd70033;transform:translateY(-1px)}.btn-pill:active{transform:translateY(1px)}.btn-pill.active{background:#ffd7001a;border-color:gold;color:gold;box-shadow:0 0 12px #ffd70066}.btn-panic:hover{border-color:#ff336680!important;box-shadow:0 0 8px #f363!important}.btn-panic:active,.btn-panic.active{background:#ff33661a!important;border-color:#f36!important;color:#f36!important;box-shadow:0 0 12px #f366!important}@media (max-width: 1300px){.btn-pill{font-size:0;padding:6px 10px;gap:0!important}.btn-pill span{font-size:16px}}.preset-select{width:100%;background:#ffffff0a;border:1px solid var(--border-glass);color:var(--text-primary);padding:10px;border-radius:8px;font-family:var(--font-main);outline:none;font-size:14px;cursor:pointer}.preset-select:focus{border-color:var(--neon-cyan)}.slider-custom{-webkit-appearance:none;width:100%;height:6px;border-radius:3px;background:#ffffff1a;outline:none;cursor:pointer}.slider-custom::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--neon-cyan);box-shadow:0 0 6px var(--neon-cyan);transition:transform .1s}.slider-custom::-webkit-slider-thumb:hover{transform:scale(1.3)}.dual-range-thumb{-webkit-appearance:none;background:transparent;pointer-events:none}.dual-range-thumb::-webkit-slider-thumb{pointer-events:auto;-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--neon-cyan);box-shadow:0 0 6px var(--neon-cyan);cursor:pointer;transition:transform .1s,background .2s,box-shadow .2s}.dual-range-thumb::-webkit-slider-thumb:hover{transform:scale(1.3)}.dual-range-thumb:disabled::-webkit-slider-thumb{background:var(--text-muted);box-shadow:none;cursor:not-allowed}.dual-range-thumb:disabled::-webkit-slider-thumb:hover{transform:scale(1)}.instruction-box{background:#00f2fe08;border:1px dashed rgba(0,242,254,.2);border-radius:8px;padding:12px;font-size:12px;line-height:1.6;color:var(--text-secondary)}.instruction-box code{color:var(--neon-cyan);font-family:var(--font-mono);background:#ffffff0d;padding:1px 4px;border-radius:3px}.piano-container{grid-row:4;background:#0b0f19f2;border-top:1px solid var(--border-glass);display:flex;justify-content:center;position:relative;padding:8px 10px;height:100%;width:100%;overflow-x:auto}.piano-keys{display:flex;position:relative;height:100%}.piano-key-white{width:var(--white-key-width, 28px);height:100%;background:linear-gradient(to bottom,#fff,#e0e0e0);border:1px solid #111;border-bottom-left-radius:4px;border-bottom-right-radius:4px;cursor:pointer;position:relative;z-index:1;transition:transform .05s,box-shadow .05s}.piano-key-black{width:var(--black-key-width, 18px);height:60%;background:linear-gradient(to bottom,#333,#000);border:1px solid #000;border-bottom-left-radius:3px;border-bottom-right-radius:3px;cursor:pointer;position:absolute;z-index:2;transition:transform .05s,box-shadow .05s}.key-label{position:absolute;bottom:8px;left:50%;transform:translate(-50%);font-family:var(--font-mono);font-size:10px;font-weight:700;color:#555;text-transform:uppercase;pointer-events:none}.piano-key-black .key-label{color:#bbb;bottom:6px}.piano-key-white.active{background:linear-gradient(to bottom,#dbeafe,#a5f3fc);box-shadow:inset 0 -5px 12px #00f2fe66,0 0 12px var(--neon-cyan);transform:translateY(2px);z-index:1}.piano-key-white.active-virtual{background:linear-gradient(to bottom,#f8fafc,#e2e8f0);box-shadow:inset 0 -5px 12px #fff9,0 0 12px 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10px;display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;-webkit-user-select:none;user-select:none;position:relative;transition:var(--transition-smooth)}.drum-pad:hover{background:#ffffff14;border-color:var(--border-glass-active)}.drum-pad-name{font-size:12px;font-weight:700;font-family:var(--font-mono);color:var(--text-secondary);text-transform:uppercase}.drum-pad-bulb{width:8px;height:8px;border-radius:50%;background-color:var(--text-muted);transition:background-color .05s,box-shadow .05s}.drum-pad.hit{transform:scale(.95);border-color:var(--neon-magenta);box-shadow:0 0 10px #ff007f66}.drum-pad.hit .drum-pad-bulb{background-color:var(--neon-magenta);box-shadow:0 0 10px var(--neon-magenta)}.sequencer-container{display:flex;flex-direction:column;gap:8px;background:#00000040;padding:12px;border-radius:10px;border:1px solid var(--border-glass)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background:var(--bg-panel);border:1px solid var(--neon-cyan);border-radius:12px;padding:30px;max-width:400px;width:90%;position:relative;text-align:center;box-shadow:0 0 20px #00f2fe33}.modal-close{position:absolute;top:10px;right:15px;background:transparent;border:none;color:var(--text-secondary);font-size:24px;cursor:pointer}.modal-close:hover{color:var(--neon-magenta)}.seq-row{display:grid;grid-template-columns:50px 1fr;align-items:center;gap:8px}.seq-label{font-family:var(--font-mono);font-size:11px;font-weight:700;color:var(--text-secondary);text-transform:uppercase}.seq-steps{display:grid;grid-template-columns:repeat(16,1fr);gap:4px}.seq-step{height:18px;background:#ffffff0d;border:1px solid rgba(255,255,255,.03);border-radius:3px;cursor:pointer;transition:var(--transition-smooth)}.seq-step:hover{background:#ffffff1f}.seq-steps .seq-step:nth-child(4n+1){border-left:1px solid rgba(255,255,255,.2)}body.arcade-mode-active .timing-gauge-container{display:none!important}.seq-step.active{background-color:var(--neon-cyan);box-shadow:0 0 6px var(--neon-cyan);border-color:var(--neon-cyan)}.seq-row.clap .seq-step.active{background-color:var(--neon-magenta);box-shadow:0 0 6px var(--neon-magenta);border-color:var(--neon-magenta)}.seq-step.playhead-hover{background:#ffffff40!important;box-shadow:0 0 6px #fff!important;border-color:#fff!important}.transport-section{display:flex;align-items:center;gap:16px}.btn-transport{background:var(--bg-panel);border:1px solid var(--border-glass);color:var(--text-primary);width:44px;height:44px;border-radius:50%;display:flex;justify-content:center;align-items:center;cursor:pointer;transition:var(--transition-smooth);font-size:16px;line-height:1;flex-shrink:0}.btn-transport:hover{border-color:#ffd70080;box-shadow:0 0 8px #ffd70033;background:#ffffff14;transform:translateY(-1px)}.btn-transport:active{transform:translateY(1px)}.btn-transport.active-play{color:gold;border-color:gold;box-shadow:0 0 12px #ffd70066;background:#ffd7001a}.btn-transport.active-rec{color:gold;border-color:gold;box-shadow:0 0 12px #ffd70066;background:#ffd7001a;animation:pulsingRec 1.5s infinite}@keyframes pulsingRec{0%{transform:scale(1);box-shadow:0 0 12px #ffd70066}50%{transform:scale(1.05);box-shadow:0 0 20px #ffd70099}to{transform:scale(1);box-shadow:0 0 12px #ffd70066}}.btn-record{font-size:32px}.btn-transport.loop-off{color:var(--text-muted)}.btn-transport.metro-btn.active{color:gold;border-color:gold;box-shadow:0 0 12px #ffd70066;background:#ffd7001a}.btn-transport.metro-btn.active svg{filter:drop-shadow(0 0 4px #ffb703);transition:all .05s ease}.btn-transport.metro-btn.active.flash-downbeat{color:var(--neon-green);border-color:var(--neon-green);box-shadow:0 0 12px var(--neon-green)}.btn-transport.metro-btn.active.flash-downbeat svg{filter:drop-shadow(0 0 6px var(--neon-green))}.btn-transport.metro-btn.active.flash-beat{color:#39ff1480;border-color:#39ff1480;box-shadow:0 0 8px #39ff144d}.btn-transport.metro-btn.active.flash-beat svg{filter:drop-shadow(0 0 4px rgba(57,255,20,.5))}.btn-transport.metro-btn:not(.active){color:var(--text-muted)}.btn-transport.active-loop{color:gold;border-color:gold;box-shadow:0 0 12px #ffd70066;background:#ffd7001a}.btn-transport.active-loop svg{filter:drop-shadow(0 0 4px #ffb703)}.tempo-section{display:flex;align-items:center;gap:14px;background:var(--bg-panel);border:1px solid var(--border-glass);padding:8px 16px;border-radius:30px}.tempo-label{font-size:12px;color:var(--text-secondary);font-weight:700;text-transform:uppercase;font-family:var(--font-mono)}.tempo-num{font-family:var(--font-mono);font-size:16px;font-weight:800;color:var(--neon-cyan);width:44px;background:transparent;border:none;outline:none;text-align:center}.tempo-slider{width:120px}.metronome-section{display:flex;align-items:center;gap:12px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-darkest)}::-webkit-scrollbar-thumb{background:var(--border-glass);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-glass-active)}@media (max-width: 1024px){.app-container{--left-panel-width: 240px;--right-panel-width: 0px}}@media (max-width: 768px){.app-container{--left-panel-width: 0px;--right-panel-width: 0px}}.timing-gauge-container{position:absolute;top:16px;left:50%;transform:translate(-50%);background:#0b0f19bf;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-glass);border-radius:6px;padding:4px 12px;z-index:5;display:flex;flex-direction:row;align-items:center;gap:12px;box-shadow:0 4px 20px #0000004d;pointer-events:none;-webkit-user-select:none;user-select:none}.timing-text-label{font-size:10px;font-weight:800;color:var(--text-muted);letter-spacing:1px}.timing-led-bar{display:flex;gap:3px}.led-block{width:14px;height:8px;background-color:#222;border-radius:2px;transition:background-color .1s,box-shadow .1s;box-shadow:inset 0 0 2px #000c}.tracks-looper-container{margin-bottom:8px;flex-shrink:0}.panel-title.orange{border-left:3px solid #ff9f0a;color:#ff9f0a;text-shadow:0 0 8px rgba(255,159,10,.25)}.looper-track-card{background:#ffffff08;border:1px solid var(--border-glass);border-radius:8px;padding:12px;transition:var(--transition-smooth)}.looper-track-card:hover{background:#ffffff0d;border-color:var(--border-glass-active)}.looper-track-card.armed,.looper-track-card.auditioning{background:rgba(var(--track-color, 255, 159, 10),.05);border-color:rgba(var(--track-color, 255, 159, 10),.3);box-shadow:0 0 12px rgba(var(--track-color, 255, 159, 10),.15)}@keyframes slowAuditionPulse{0%{border-color:rgba(var(--track-color, 255, 159, 10),.3);box-shadow:0 0 12px rgba(var(--track-color, 255, 159, 10),.15)}50%{border-color:rgba(var(--track-color, 255, 159, 10),.8);box-shadow:0 0 20px rgba(var(--track-color, 255, 159, 10),.4)}to{border-color:rgba(var(--track-color, 255, 159, 10),.3);box-shadow:0 0 12px rgba(var(--track-color, 255, 159, 10),.15)}}.looper-track-card.auditioning{animation:slowAuditionPulse 2s ease-in-out infinite}.looper-track-header{display:flex;justify-content:space-between;align-items:center}.track-controls-row{display:flex;align-items:center;gap:6px}.btn-track-arm,.btn-track-mute,.btn-track-solo,.btn-track-clear,.btn-stage-enable,.btn-track-vis{background:#ffffff0d;border:1px solid var(--border-glass);color:var(--text-primary);width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:11px;transition:var(--transition-smooth)}.btn-track-arm{color:#4a2b2b;font-size:20px}.btn-track-arm:hover{background:#ffffff1a}.btn-stage-enable{color:#2a4c2a;font-size:20px}.btn-stage-enable:hover{background:#ffffff1a}.btn-stage-enable.active{color:#39ff14;text-shadow:0 0 12px #39ff14}.sheet-music-btn{filter:grayscale(1) opacity(.5);transition:filter .2s}.sheet-music-btn.active{filter:drop-shadow(0 0 8px var(--neon-cyan)) grayscale(0) opacity(1)}@keyframes pulseOpacity{0%{opacity:1}50%{opacity:.3}to{opacity:1}}.arm-dot{animation:pulseOpacity 1.5s ease-in-out infinite}.btn-track-arm.active{color:#ff9100;text-shadow:0 0 8px #ff9100}.btn-track-arm.active.recording{color:red;text-shadow:0 0 12px #ff0000}.btn-track-arm.active.recording .arm-dot,.btn-track-arm:not(.active) .arm-dot{animation:none;opacity:1}.btn-track-mute.muted{background:#f36;color:#fff;border-color:#f36;box-shadow:0 0 10px #f366}.btn-track-solo:hover{background:#3a4b6b;border-color:#ffea00;color:#ffea00;box-shadow:0 0 8px #ffea004d}.btn-track-mute:hover{background:#ff9f0a33;border-color:#ff9f0a}.btn-track-mute.muted{background:#ffffff1a;border-color:var(--text-muted);color:var(--text-muted);opacity:.5}.btn-track-clear:hover{background:#dc262640;border-color:#dc2626}.btn-track-vis{font-size:14px}.btn-track-vis:hover{background:#ffffff26}.btn-track-vis.active{color:var(--neon-cyan);border-color:var(--neon-cyan);box-shadow:0 0 8px #00f3ff4d}.looper-track-settings{display:flex;flex-direction:column;align-items:stretch;gap:6px;margin-top:8px;font-size:11px}select option{background-color:#111522!important;color:#fff!important}body.arcade-mode-active .sidebar-panel,body.arcade-mode-active .panel-handle,body.arcade-mode-active #globalRangeSliderContainer{display:none!important}body.arcade-mode-active .transport-group,body.arcade-mode-active .tempo-group{opacity:.3!important;pointer-events:none!important;filter:grayscale(100%)}body.arcade-mode-active .main-area{grid-template-columns:1fr!important}@keyframes fadeOutUp{0%{opacity:1;transform:translate(-50%,-50%)}80%{opacity:1;transform:translate(-50%,-100%)}to{opacity:0;transform:translate(-50%,-150%)}}.arcade-tabs{display:flex;gap:10px;margin-bottom:15px;border-bottom:2px solid var(--border-glass)}.arcade-tab-btn{background:transparent;color:var(--text-secondary);border:none;border-bottom:3px solid transparent;padding:10px 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