:root,[data-mpk4-theme=classic]{--mpk4-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;--mpk4-app-bg: #1a1a1a;--mpk4-app-color: #eee;--mpk4-device-accent-color: #c75050;--mpk4-screen-header-color: #00d4aa;--mpk4-device-frame-bg: linear-gradient(135deg, #d4d0ca 0%, #c8c4be 50%, #b8b4ae 100%);--mpk4-device-inner-bg: linear-gradient(135deg, #c8c4be 0%, #bbb7b1 100%);--mpk4-surface-panel-bg: #c8c4be;--mpk4-encoder-base-bg: #8a3535;--mpk4-encoder-knob-grad: linear-gradient(145deg, #4a4a4a 0%, #333 100%);--mpk4-encoder-knob-grad-hover: linear-gradient(145deg, #555 0%, #3a3a3a 100%);--mpk4-encoder-knob-grad-active: linear-gradient(145deg, #333 0%, #2a2a2a 100%);--mpk4-device-model-color: #333;--mpk4-device-model-muted: #666;--mpk4-theme-toggle-bg: rgba(24, 24, 24, .92);--mpk4-theme-toggle-border: rgba(199, 80, 80, .55);--mpk4-theme-toggle-color: #f2f2f2;--mpk4-theme-toggle-shadow: rgba(0, 0, 0, .28);--mpk4-sequencer-step-playing-bg: linear-gradient(135deg, #c75050 0%, #a93f3f 100%);--mpk4-sequencer-step-playing-border: rgba(255, 255, 255, .82);--mpk4-sequencer-step-playing-glow: rgba(199, 80, 80, .5);--mpk4-sequencer-step-playing-inset: rgba(255, 255, 255, .5);--mpk4-sequencer-pad-label-hover-bg: linear-gradient(135deg, #c75050 0%, #a93f3f 100%);--mpk4-sequencer-pad-label-hover-color: #ffffff;--mpk4-sequencer-pad-label-hover-border: rgba(255, 255, 255, .2);--mpk4-sequencer-pad-label-pressed-ring: rgba(255, 255, 255, .92);--mpk4-sequencer-pad-label-pressed-glow: rgba(255, 255, 255, .35);--mpk4-status-bg: #16213e;--mpk4-status-color: #eee;--mpk4-status-connected-color: #4ade80;--mpk4-status-disconnected-color: #f87171;--mpk4-status-busy-color: #fbbf24;--mpk4-status-error-color: #f87171;--mpk4-status-error-bg: #2d1f1f;--mpk4-button-bg: #00d4ff;--mpk4-button-color: #1a1a2e;--mpk4-button-hover-bg: #00a8cc;--mpk4-button-disabled-bg: #4a5568;--mpk4-button-disabled-color: #718096;--mpk4-card-bg: #16213e;--mpk4-device-item-bg: #0f3460;--mpk4-heading-color: #fbbf24;--mpk4-label-color: #a5d6ff;--mpk4-value-color: #7ee787;--mpk4-muted-color: #888;--mpk4-input-bg: #0f3460;--mpk4-input-border: #30363d;--mpk4-input-color: #eee;--mpk4-log-bg: #0d1117;--mpk4-log-border: #30363d;--mpk4-log-height: 250px;--mpk4-log-midi-color: #7ee787;--mpk4-log-event-color: #79c0ff;--mpk4-log-error-color: #f85149;--mpk4-log-warn-color: #d29922;--mpk4-log-info-color: #a5d6ff;--mpk4-log-timestamp-color: #6e7681}[data-mpk4-theme=dark]{--mpk4-app-bg: #12151a;--mpk4-app-color: #ececec;--mpk4-device-accent-color: #c84038;--mpk4-screen-header-color: #59d6ba;--mpk4-device-frame-bg: linear-gradient(135deg, #686868 0%, #606060 48%, #505050 100%);--mpk4-device-inner-bg: linear-gradient(135deg, #707070 0%, #585858 100%);--mpk4-surface-panel-bg: #606060;--mpk4-encoder-base-bg: #901008;--mpk4-encoder-knob-grad: linear-gradient(145deg, #585858 0%, #404040 100%);--mpk4-encoder-knob-grad-hover: linear-gradient(145deg, #686868 0%, #505050 100%);--mpk4-encoder-knob-grad-active: linear-gradient(145deg, #484848 0%, #303030 100%);--mpk4-device-model-color: #f0f0f0;--mpk4-device-model-muted: #d0d0d0;--mpk4-theme-toggle-bg: rgba(34, 34, 34, .94);--mpk4-theme-toggle-border: rgba(200, 64, 56, .7);--mpk4-theme-toggle-color: #f8f8f8;--mpk4-theme-toggle-shadow: rgba(0, 0, 0, .35);--mpk4-sequencer-step-playing-bg: linear-gradient(135deg, #c84038 0%, #a81810 100%);--mpk4-sequencer-step-playing-border: rgba(248, 248, 248, .86);--mpk4-sequencer-step-playing-glow: rgba(200, 64, 56, .55);--mpk4-sequencer-step-playing-inset: rgba(255, 255, 255, .42);--mpk4-sequencer-pad-label-hover-bg: linear-gradient(135deg, #c84038 0%, #a81810 100%);--mpk4-sequencer-pad-label-hover-color: #ffffff;--mpk4-sequencer-pad-label-hover-border: rgba(255, 255, 255, .22);--mpk4-sequencer-pad-label-pressed-ring: rgba(248, 248, 248, .95);--mpk4-sequencer-pad-label-pressed-glow: rgba(255, 255, 255, .3);--mpk4-status-bg: #1c2128;--mpk4-status-color: #f2f2f2;--mpk4-button-bg: #c03830;--mpk4-button-color: #ffffff;--mpk4-button-hover-bg: #a81810;--mpk4-button-disabled-bg: #3f4651;--mpk4-button-disabled-color: #7c8693;--mpk4-card-bg: #1a2027;--mpk4-device-item-bg: #232b35;--mpk4-heading-color: #e5e9ee;--mpk4-label-color: #b4bcc7;--mpk4-value-color: #f5f7fa;--mpk4-muted-color: #8a95a3;--mpk4-input-bg: #151a21;--mpk4-input-border: #363e49;--mpk4-input-color: #edf2f7;--mpk4-log-bg: #11161c;--mpk4-log-border: #303844;--mpk4-log-midi-color: #87df95;--mpk4-log-event-color: #7dbcf6;--mpk4-log-error-color: #ff8080;--mpk4-log-warn-color: #e5bf72;--mpk4-log-info-color: #c1cbd8;--mpk4-log-timestamp-color: #8892a0}.device-frame{background:var(--mpk4-device-frame-bg, linear-gradient(135deg, #d4d0ca 0%, #c8c4be 50%, #b8b4ae 100%));border-radius:16px;padding:4px;box-shadow:0 8px 32px #0006,inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0000001a;overflow:visible}.device-inner{background:var(--mpk4-device-inner-bg, linear-gradient(135deg, #c8c4be 0%, #bbb7b1 100%));border-radius:12px;padding:16px 14px 20px;border:3px solid var(--mpk4-device-accent-color, #c75050);overflow:visible}.device-top{display:grid;grid-template-columns:auto auto min-content auto;gap:12px;margin-bottom:16px;align-items:start}.left-column{display:flex;flex-direction:column;justify-content:space-between;align-items:center;height:220px}.brand{display:flex;align-items:center}.brand img{height:28px}.model-name{font-size:20px;font-weight:700;color:var(--mpk4-device-model-color, #333);text-align:right;margin-bottom:4px}.model-name .mini{font-weight:400;font-size:15px;color:var(--mpk4-device-model-muted, #666)}.pads-section{position:relative;display:flex;flex-direction:column;justify-content:space-between;height:220px}.screen-section{display:flex;flex-direction:column;justify-content:flex-start;align-items:center;padding:0;height:220px}.screen-panel{display:flex;flex-direction:column;gap:4px;align-items:center;justify-content:flex-start;background:var(--mpk4-surface-panel-bg, #c8c4be);padding:6px 10px 0;border-radius:8px;box-shadow:inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0000001a,0 4px 8px #0000004d;box-sizing:border-box;height:100%}.screen-panel .screen-buttons{margin-top:auto;margin-bottom:6px}.screen-panel .model-name{font-size:14px;margin-bottom:0;text-align:center}.screen-panel .model-name .mini{font-size:11px}.main-encoder{width:44px;height:44px;border-radius:50%;background:var(--mpk4-encoder-base-bg, #8a3535);display:flex;align-items:center;justify-content:center;cursor:pointer;margin-top:4px;box-shadow:inset 0 1px 2px #0000004d,0 1px 2px #0003}.encoder-knob{width:34px;height:34px;border-radius:50%;background:var(--mpk4-encoder-knob-grad, linear-gradient(145deg, #4a4a4a 0%, #333 100%));box-shadow:inset 0 1px 2px #fff3,0 2px 4px #0000004d}.main-encoder:hover .encoder-knob{background:var(--mpk4-encoder-knob-grad-hover, linear-gradient(145deg, #555 0%, #3a3a3a 100%))}.main-encoder:active .encoder-knob{background:var(--mpk4-encoder-knob-grad-active, linear-gradient(145deg, #333 0%, #2a2a2a 100%))}.encoder-buttons{display:flex;gap:6px;justify-content:center;margin-top:4px}.screen-buttons{display:flex;gap:4px;justify-content:center;margin-top:4px}.keyboard-section{margin-top:8px}.knobs-section{display:flex;flex-direction:column;justify-content:space-between;align-items:center;height:220px}.knobs-display{background:var(--mpk4-surface-panel-bg, #c8c4be);padding:10px 8px;border-radius:8px;display:flex;flex-direction:column;justify-content:center;box-shadow:inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0000001a,0 4px 8px #0000004d;height:176px;box-sizing:border-box}.silver-container{background:var(--mpk4-surface-panel-bg, #c8c4be);padding:12px;border-radius:8px;display:inline-block;box-shadow:inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0000001a,0 4px 8px #0000004d;overflow:visible}.pads-display{background:var(--mpk4-surface-panel-bg, #c8c4be);padding:12px;border-radius:8px;display:inline-flex;flex-direction:column;justify-content:center;gap:4px;box-shadow:inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0000001a,0 4px 8px #0000004d;overflow:visible;position:relative;height:176px;box-sizing:border-box}.pads-edit-btn{display:none!important}.pad-labels-row{position:absolute;inset:0;user-select:none;-webkit-user-select:none;pointer-events:none}.pad-labels-row .pad-label{position:absolute;display:inline-flex;align-items:baseline;gap:2px;max-width:var(--pad-label-max-width, 56px);overflow:hidden}.pad-labels-row .pad-num{font-size:9px;font-weight:700;color:var(--mpk4-device-model-color, #333);flex-shrink:0;line-height:1}.pad-labels-row .pad-name{font-size:5px;font-weight:600;color:var(--mpk4-device-model-muted, #555);text-transform:uppercase;letter-spacing:.1px;white-space:nowrap;max-width:calc(100% - 10px);overflow:hidden;text-overflow:ellipsis}.pad-labels-row.top{top:0}.pad-labels-row.bottom{bottom:0}.pads-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:0;margin-bottom:0;overflow:visible}.pad{width:60px;height:60px;border-radius:5px;border:3px solid var(--pad-border-color, #8a3535);background:var(--pad-led-color, #1a1a1a);position:relative;cursor:pointer;user-select:none;-webkit-user-select:none;--pad-led-color: #1a1a1a;--pad-led-intensity: 0;transition:background .15s ease-out}.pad:before{content:"";position:absolute;inset:-8px;border-radius:12px;background:var(--pad-led-color);opacity:var(--pad-led-intensity);filter:blur(12px);z-index:-1;transition:all .15s ease-out;pointer-events:none}.pad:after{content:"";position:absolute;inset:3px;border-radius:2px;background:linear-gradient(145deg,#6a6a6a,#5a5a5a 30%,#4a4a4a);box-shadow:inset 0 2px 3px #ffffff26,inset 0 -2px 4px #0000004d,0 1px 2px #0006;transition:all .08s ease-out;background-image:linear-gradient(145deg,#6a6a6a,#5a5a5a 30%,#4a4a4a),repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.05) 2px,rgba(0,0,0,.05) 4px),repeating-linear-gradient(90deg,transparent,transparent 2px,rgba(0,0,0,.05) 2px,rgba(0,0,0,.05) 4px)}.pad:hover:after{transform:translateY(-1px);box-shadow:inset 0 2px 3px #ffffff40,inset 0 -2px 4px #0003,0 3px 6px #0006}.pad:active:after,.pad.active:after{transform:translateY(1px);box-shadow:inset 0 2px 4px #0000004d,0 0 2px #0003}.pad:active,.pad.active{--pad-led-intensity: .8}.pad.lit{--pad-led-intensity: .6}.pad.lit:active,.pad.lit.active{--pad-led-intensity: 1;box-shadow:0 0 25px var(--pad-led-color, transparent)}.screen-display{background:var(--mpk4-surface-panel-bg, #c8c4be);padding:12px;border-radius:8px;display:inline-block;box-shadow:inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0000001a,0 4px 8px #0000004d}.screen-preview{background:#1a1a1a;border-radius:4px;padding:6px 8px;width:14ch;font-family:SF Mono,Monaco,Consolas,monospace;box-shadow:inset 0 2px 6px #000c,0 1px #ffffff1a;overflow:hidden}.screen-line{font-size:11px;line-height:1.3;white-space:nowrap;display:inline-block}.screen-line.scrolling{animation:scroll-text 6s linear infinite}@keyframes scroll-text{0%,25%{transform:translate(0)}75%,to{transform:translate(calc(-100% + 14ch))}}.screen-line.line0{color:var(--mpk4-screen-header-color, #00d4aa);font-weight:600}.screen-line.line1,.screen-line.line2{color:#fff}.knobs-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px 8px}.knob-wrapper{display:flex;flex-direction:column;align-items:center;gap:4px;padding:2px;user-select:none;-webkit-user-select:none}.knob-label-row{display:flex;justify-content:center;align-items:flex-end;gap:2px;margin-top:2px;width:44px}.knob-number{font-size:11px;font-weight:700;color:#333;line-height:1}.knob-label{font-size:7px;color:#555;font-weight:600;text-transform:uppercase;letter-spacing:.3px;text-align:center;line-height:1}.knob-ring{width:44px;height:44px;border-radius:50%;background:#8a3535;display:flex;align-items:center;justify-content:center;box-shadow:inset 0 1px 2px #0000004d,0 1px 2px #0003}.knob{width:34px;height:34px;border-radius:50%;background:#606060;position:relative;cursor:grab;user-select:none;-webkit-user-select:none;box-shadow:0 2px 4px #0000004d}.knob:active,.knob.dragging{cursor:grabbing}.knob:before{content:"";position:absolute;inset:0;border-radius:50%;background:repeating-conic-gradient(from 0deg,#6a6a6a 0deg 2deg,#4a4a4a 2deg 4deg);mask:radial-gradient(circle,transparent 85%,black 85%);-webkit-mask:radial-gradient(circle,transparent 85%,black 85%)}.knob:after{content:"";position:absolute;inset:3px;border-radius:50%;background:#7a7a7a;box-shadow:inset 0 1px 2px #ffffff40,inset 0 -1px 2px #0003}.knob.active{box-shadow:0 2px 4px #0006,0 0 10px #ffb47840}.knob-indicator{position:absolute;width:2px;height:4px;background:linear-gradient(to bottom,#fff,#ddd);border-radius:1px;top:4px;left:50%;transform-origin:center 13px;z-index:2;margin-left:-1px;box-shadow:0 0 2px #00000080}.wheels-section{display:flex;flex-direction:column;gap:8px;align-items:center;padding:10px;background:var(--mpk4-surface-panel-bg, #c8c4be);border-radius:8px;box-shadow:inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0000001a,0 4px 8px #0000004d;height:176px;box-sizing:border-box}.wheels-section .brand{margin-bottom:4px}.wheels-section .brand img{height:20px;width:auto}.wheels-row{display:flex;flex-direction:row;gap:10px;align-items:flex-start}.wheel-wrapper{display:flex;flex-direction:column;align-items:center;gap:3px}.wheel-label{font-size:6px;font-weight:600;color:var(--mpk4-device-model-muted, #555);text-transform:uppercase;letter-spacing:.2px}.wheel-housing{width:32px;height:110px;border:3px solid var(--mpk4-encoder-base-bg, #8a3535);border-radius:6px;background:#1a1a1a;position:relative;overflow:hidden;cursor:ns-resize;user-select:none;-webkit-user-select:none}.wheel-track{position:absolute;inset:2px;background:linear-gradient(to right,#0a0a0a,#1a1a1a 20% 80%,#0a0a0a);border-radius:2px;overflow:hidden}.wheel-surface{position:absolute;left:2px;right:2px;height:40%;top:calc(30% + var(--wheel-position, 0) * 28%);transition:top .05s ease-out;border-radius:3px;background:linear-gradient(to bottom,rgba(255,255,255,.2) 0%,transparent 10%,transparent 90%,rgba(0,0,0,.3) 100%),repeating-linear-gradient(180deg,#7a7a7a,#6a6a6a,#5a5a5a,#6a6a6a,#7a7a7a 8px);box-shadow:inset 0 1px 2px #ffffff4d,inset 0 -1px 2px #0000004d,0 2px 4px #00000080}.wheel-surface:after{content:"";position:absolute;left:10%;right:10%;top:50%;transform:translateY(-50%);height:3px;background:linear-gradient(to bottom,#888,#555);border-radius:1px;box-shadow:inset 0 1px #ffffff4d,0 1px 2px #00000080}.wheel-housing:hover .wheel-surface{box-shadow:inset 0 1px 2px #fff6,inset 0 -1px 2px #0000004d,0 2px 6px #0009}.wheel-housing.active .wheel-surface{box-shadow:inset 0 1px 2px #fff3,inset 0 -1px 2px #0006,0 1px 3px #0006}.screen-buttons{display:flex;gap:4px}.edit-btn{background:#00000026;color:#666;border:none;padding:4px;border-radius:4px;cursor:pointer;transition:all .15s;display:flex;align-items:center;justify-content:center}.edit-btn:hover{background:#00000040;color:#333}.edit-btn svg{width:12px;height:12px}.audio-controls{display:flex;flex-direction:column;align-items:center;gap:16px;margin-top:0;padding:16px 0 14px;width:100%}.audio-enable-btn{display:flex;align-items:center;gap:12px;padding:16px 32px;font-size:18px;font-weight:600;color:#fff;background:linear-gradient(135deg,#c75050,#a03030);border:none;border-radius:12px;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 12px #c7505066,inset 0 1px #fff3}.audio-enable-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #c7505080,inset 0 1px #fff3}.audio-enable-btn:active{transform:translateY(0)}.audio-enable-btn .audio-icon{width:28px;height:28px}.audio-enable-btn .audio-waves{opacity:.5}.audio-enable-btn.loading{opacity:.7;cursor:wait}.audio-enable-btn.loading .audio-label:after{content:"...";animation:loading-dots 1s infinite}@keyframes loading-dots{0%,20%{content:"."}40%{content:".."}60%,to{content:"..."}}.audio-enable-btn.enabled{background:linear-gradient(135deg,#2ecc71,#27ae60);box-shadow:0 4px 12px #2ecc7166,inset 0 1px #fff3}.audio-enable-btn.enabled:hover{box-shadow:0 6px 20px #2ecc7180,inset 0 1px #fff3}.audio-enable-btn.enabled .audio-waves{opacity:1;animation:pulse-waves 1.5s ease-in-out infinite}@keyframes pulse-waves{0%,to{opacity:.6}50%{opacity:1}}.audio-enable-btn.muted{background:linear-gradient(135deg,#666,#444);box-shadow:0 4px 12px #0000004d,inset 0 1px #ffffff1a}.audio-enable-btn.muted .audio-waves{opacity:.2}.selectors-row{display:flex;gap:24px;align-items:center;justify-content:center;flex-wrap:wrap;opacity:.4;pointer-events:none;transition:opacity .3s;position:relative;margin:0 auto;width:fit-content;max-width:calc(100% - 32px);padding:14px 18px;border:2px solid transparent;border-radius:12px}.selectors-row.enabled{opacity:1;pointer-events:auto}.selectors-row[data-mode=main]{border-color:#2dd4bf8c;box-shadow:0 0 0 1px #2dd4bf26 inset}.selectors-row[data-mode=bass]{border-color:#f59e0ba6;box-shadow:0 0 0 1px #f59e0b33 inset}.selectors-row[data-mode=main] .instrument-selector:first-child .selector-label{color:#7be9d9}.selectors-row[data-mode=bass] .instrument-selector:nth-child(2) .selector-label{color:#ffd27a}.selectors-row[data-mode=main] .instrument-selector:first-child .selector-select{border-color:#2dd4bf;box-shadow:0 0 0 2px #2dd4bf33}.selectors-row[data-mode=bass] .instrument-selector:nth-child(2) .selector-select{border-color:#f59e0b;box-shadow:0 0 0 2px #f59e0b3d}.instrument-selector,.kit-selector,.pattern-controls{display:flex;align-items:center;gap:8px}.pattern-btn{width:28px;height:28px;padding:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#444,#333);border:2px solid #555;border-radius:6px;color:#888;cursor:pointer;transition:all .2s}.pattern-btn svg{width:14px;height:14px}.pattern-btn:hover:not(:disabled){border-color:#777;background:linear-gradient(135deg,#555,#444);color:#fff}.pattern-btn:disabled{opacity:.5;cursor:not-allowed}.pattern-btn.playing{background:linear-gradient(135deg,#c75050,#8a3535);border-color:#c75050;color:#fff}.pattern-btn.playing .play-icon{display:none}.pattern-btn.playing .stop-icon{display:block!important}.pattern-btn.loop-btn.active{background:linear-gradient(135deg,#3a7ca5,#2a5a7a);border-color:#4a9bc5;color:#fff}.pattern-track-toggles{display:flex;gap:4px}.track-toggle{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:linear-gradient(135deg,#333,#222);border:2px solid #444;border-radius:6px;cursor:pointer;transition:all .2s}.track-toggle input{display:none}.track-toggle .toggle-icon{color:#555;transition:color .2s}.track-toggle:hover{border-color:#666}.track-toggle input:checked+.toggle-icon.drums-icon{color:#ff6b6b}.track-toggle input:checked+.toggle-icon.keys-icon{color:#4ecdc4}.bpm-control{display:flex;align-items:center;gap:4px}.bpm-input{width:50px;padding:4px 6px;font-size:11px;font-weight:600;color:#fff;background:linear-gradient(135deg,#333,#222);border:2px solid #444;border-radius:4px;text-align:center;-moz-appearance:textfield}.bpm-input::-webkit-outer-spin-button,.bpm-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.bpm-input:focus{outline:none;border-color:#c75050}.bpm-label{font-size:10px;color:#666;font-weight:500}.keyboard-section{position:relative;z-index:1;--keyboard-info-width: clamp(116px, 18%, 176px)}.keyboard-overlay-controls{position:absolute;bottom:8px;left:10px;display:flex;flex-direction:column;align-items:flex-start;gap:4px;z-index:100;pointer-events:auto}.keyboard-utility-dock,.floating-utility-menu{display:flex;flex-direction:column;gap:4px;padding:6px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:#141414d1;box-shadow:0 6px 18px #00000047;backdrop-filter:blur(8px)}.floating-utility-menu{position:fixed;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));z-index:1200;align-items:flex-end}.utility-row{display:flex;align-items:center;gap:4px;justify-content:flex-end}.utility-btn{min-width:30px;min-height:30px;display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:0 10px;border-radius:8px;border:1px solid rgba(255,255,255,.16);background:linear-gradient(180deg,#363636f5,#222222f5);color:#e8e8e8;cursor:pointer;transition:background .16s ease,border-color .16s ease,transform .16s ease,opacity .16s ease,box-shadow .16s ease;box-shadow:inset 0 1px #ffffff0f}.utility-btn:hover{background:linear-gradient(180deg,#4a4a4afa,#303030fa);border-color:#ffffff42;box-shadow:inset 0 1px #ffffff14,0 2px 8px #0000002e}.utility-btn:active{transform:translateY(1px)}.utility-btn:disabled{opacity:.38;cursor:not-allowed}.utility-btn.active{border-color:#7be9d9a6;color:#fff;box-shadow:inset 0 0 0 1px #7be9d93d}.utility-btn.playing{background:#27ae60eb;border-color:#46d27cbf;color:#08160d}.utility-btn.muted{background:linear-gradient(180deg,#663c3cf5,#482828f5);border-color:#c7505099;color:#f3d6d6}.utility-btn svg{display:block}.utility-text{font-size:10px;font-weight:600;letter-spacing:.25px;white-space:nowrap}.utility-theme-btn{min-width:74px}.keyboard-overlay-controls mpk4-status{transform:scale(.75);transform-origin:left center}.keyboard-info-controls{position:absolute;right:8px;top:10px;bottom:auto;display:flex;align-items:flex-start;justify-content:flex-end;z-index:100;pointer-events:none;width:var(--keyboard-info-width);max-width:calc(100% - 16px)}.keyboard-section.keyboard-info-hidden .keyboard-info-controls{display:none}.keyboard-info-panel{width:100%;min-height:56px;max-height:calc(100% - 20px);padding:6px 7px;border-radius:6px;border:1px solid rgba(255,255,255,.12);background:#141414cc;color:#c7c7c7;font-size:9px;line-height:1.2;letter-spacing:.2px;text-align:left;box-shadow:0 2px 8px #0000004d;overflow:hidden;display:flex;flex-direction:column;justify-content:center}.keyboard-info-panel.active{color:#f2f2f2;border-color:#7be9d98c}.keyboard-info-panel .tooltip-info-title{font-size:9px;font-weight:700;margin-bottom:4px;color:#e9f8f4}.keyboard-info-panel .tooltip-info-detail{white-space:pre-line}.keyboard-info-panel .tooltip-info-spacer{height:4px}.keyboard-info-panel .tooltip-info-row{display:flex;align-items:flex-start;gap:6px}.keyboard-info-panel .tooltip-info-row+.tooltip-info-row{margin-top:3px}.keyboard-info-panel .tooltip-info-icon{width:14px;height:14px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 14px;border-radius:4px;border:1px solid rgba(255,255,255,.22);color:#e8f9f6;background:#ffffff14}.keyboard-info-panel .tooltip-info-icon svg{width:10px;height:10px;display:block}.keyboard-info-panel .tooltip-info-icon-hw{border-color:#7be9d98c;color:#7be9d9}.keyboard-info-panel .tooltip-info-icon-web{border-color:#ffd27a8c;color:#ffd27a}.keyboard-info-panel .tooltip-info-text{flex:1;white-space:pre-line}@media screen and (max-width: 1200px){.keyboard-section{--keyboard-info-width: clamp(108px, 17%, 160px)}.keyboard-info-panel{font-size:8px}}@media screen and (max-width: 900px) and (orientation: landscape){.keyboard-section{--keyboard-info-width: clamp(96px, 16%, 140px)}.keyboard-info-controls{right:8px;top:8px;bottom:8px}.keyboard-info-panel{font-size:8px;background:#141414eb}}.mode-indicator-row{width:100%;display:flex;justify-content:center;margin-bottom:4px}.audio-enable-btn.compact{display:flex;align-items:center;justify-content:center;padding:5px 7px;background:#444;border:2px solid #666;border-radius:4px;color:#fff;cursor:pointer;transition:all .2s;box-shadow:0 2px 4px #0000004d}.audio-enable-btn.compact .audio-icon{width:14px;height:14px}.audio-enable-btn.compact .audio-waves{opacity:.3}.audio-enable-btn.compact.enabled{background:#27ae60e6;border-color:#27ae6080}.audio-enable-btn.compact.enabled .audio-waves{opacity:1}.audio-enable-btn.compact.muted{background:#e74c3ce6;border-color:#e74c3c80}.audio-enable-btn.compact.loading{background:#f39c12e6;border-color:#f39c1280}.keyboard-mode-btn.compact{display:flex;align-items:center;gap:4px;padding:5px 8px;background:#2dd4bf;border:2px solid #7be9d9;border-radius:6px;color:#052e2b;font-size:10px;font-weight:700;cursor:pointer;transition:all .2s;white-space:nowrap;box-shadow:0 2px 4px #0000004d,0 0 0 1px #ffffff14 inset}.keyboard-mode-btn.compact:hover{background:#5fe3d3}.keyboard-mode-btn.compact.main-mode{background:#2dd4bf;border-color:#7be9d9;color:#052e2b}.keyboard-mode-btn.compact.bass-mode{background:#f59e0b;border-color:#ffd27a;color:#3b2200}.keyboard-mode-btn.compact.bass-mode:hover{background:#ffb737}.keyboard-mode-btn .mode-icon{display:flex;align-items:center}.keyboard-mode-btn .mode-instrument{max-width:112px;overflow:hidden;text-overflow:ellipsis;padding:1px 6px;border-radius:4px;background:#0000002e;font-size:9px;letter-spacing:.25px}.keyboard-mode-btn.compact.bass-mode .mode-instrument{background:#0003}mpk4-keyboard.bass-mode{--key-active-color: #f7b731}.pattern-select{min-width:120px;max-width:200px;flex:1;font-size:11px;padding:6px 8px}.pattern-section{display:flex;flex-direction:column;gap:8px;padding:12px 16px;background:#0000004d;border-radius:8px;margin-top:12px;transition:opacity .3s}.pattern-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:0}.pattern-title{font-size:11px;font-weight:600;color:#888;text-transform:uppercase;letter-spacing:.5px}.pattern-rows{display:flex;gap:16px;flex-wrap:wrap}.pattern-row{display:flex;align-items:center;gap:6px;flex:1;min-width:180px}.full-pattern-row{width:100%;flex:none;display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-bottom:8px;margin-bottom:4px;border-bottom:1px solid rgba(255,255,255,.1)}.full-pattern-row .full-pattern-select{flex:1;min-width:280px;max-width:520px}.full-pattern-row .pattern-icon.full-icon{color:#27ae60}.pattern-label{font-size:11px;font-weight:500;color:#888;width:40px;flex-shrink:0}.pattern-transport{display:flex;align-items:center;gap:8px;justify-content:flex-end;flex-wrap:nowrap}.pattern-page-nav{display:flex;align-items:center;justify-content:flex-end;gap:12px;margin-left:auto;flex-wrap:nowrap}.pattern-page-nav[hidden]{display:none}.pattern-page-nav .page-btn{min-width:54px}.pattern-page-meta{min-width:72px;text-align:center;font-size:11px;color:#999;font-family:var(--mpk4-font-mono, monospace)}.pattern-icon{display:flex;align-items:center;justify-content:center;width:18px;height:18px;flex-shrink:0}.pattern-icon.drums-icon{color:#ff6b6b}.pattern-icon.bass-icon{color:#f7b731}.pattern-mute-btn{display:flex;align-items:center;gap:6px;padding:4px 8px;background:transparent;border:1px solid transparent;border-radius:4px;cursor:pointer;transition:all .2s}.pattern-mute-btn:hover{background:#ffffff1a;border-color:#fff3}.pattern-mute-btn .pattern-label{width:auto}.pattern-row.muted .pattern-mute-btn{opacity:.4}.pattern-row.muted .pattern-icon{color:#555!important}.pattern-row.muted .pattern-label{text-decoration:line-through;color:#555}.pattern-row.muted .pattern-select{opacity:.5}.pattern-icon.keys-icon{color:#4ecdc4}.selector-label{font-size:13px;font-weight:500;color:#888}.selector-select{padding:10px 36px 10px 16px;font-size:13px;font-weight:500;color:#fff;background:linear-gradient(135deg,#444,#333);border:2px solid #555;border-radius:8px;cursor:pointer;min-width:160px;transition:all .2s;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}.selector-select:hover{border-color:#777;background:linear-gradient(135deg,#555,#444)}.selector-select:focus{outline:none;border-color:#c75050;box-shadow:0 0 0 3px #c7505033}.selector-select:disabled{opacity:.6;cursor:wait}.selector-select option{background:#333;color:#fff;padding:8px}.selector-select optgroup{background:#2a2a2a;color:#aaa;font-style:normal;font-weight:600;padding:4px 0}.overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;visibility:hidden;transition:all .2s;backdrop-filter:blur(4px)}.overlay.active{opacity:1;visibility:visible}.overlay-content{background:var(--mpk4-device-inner-bg, linear-gradient(135deg, #c8c4be 0%, #bbb7b1 100%));border-radius:12px;padding:20px;max-width:500px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:0 16px 48px #00000080;transform:translateY(20px);transition:transform .2s}.overlay.active .overlay-content{transform:translateY(0)}.overlay-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.overlay-title{font-size:14px;font-weight:700;color:var(--mpk4-device-model-color, #333);text-transform:uppercase;letter-spacing:.5px}.close-btn{background:var(--mpk4-device-accent-color, #c75050);color:#fff;border:none;width:28px;height:28px;border-radius:50%;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s;box-shadow:0 2px 4px #0003}.close-btn:hover{background:#b04040;transform:scale(1.1)}@media (pointer: coarse){.pad,.knob,.wheel-housing,mpk4-keyboard{-webkit-tap-highlight-color:transparent}}@media screen and (max-width: 1024px) and (orientation: landscape){.device-inner{padding:12px 16px 16px}.device-top{gap:12px}.brand img{height:24px;width:auto}.model-name{font-size:16px}.model-name .mini{font-size:12px}}@media screen and (max-width: 900px) and (orientation: landscape){.device-inner{padding:10px 14px 14px}.device-top{gap:10px}.wheel-housing{width:28px;height:100px}.wheels-section{padding:8px;gap:8px}.pad{width:52px;height:52px}.pad-labels-row{grid-template-columns:repeat(4,52px);gap:6px}.pads-grid{gap:6px}.pads-display{padding:10px}.knob-ring{width:44px;height:44px}.knob{width:36px;height:36px}.knob-indicator{transform-origin:center 14px;height:4px}.knobs-grid{gap:8px 6px}.knob-label-row{width:44px}.knob-label{font-size:6px}.knob-number{font-size:10px}}@media screen and (max-width: 800px) and (orientation: landscape){.device-frame{border-radius:12px;padding:3px}.device-inner{border-radius:10px;padding:8px 12px 12px;border-width:2px}.device-top{gap:8px;margin-bottom:10px}.brand img{height:20px}.model-name{font-size:14px}.model-name .mini{font-size:10px}.wheel-housing{width:24px;height:80px;border-width:2px}.wheels-section{padding:6px;gap:6px;border-radius:6px}.wheel-surface{height:35%}.pad{width:46px;height:46px;border-width:2px;border-radius:4px}.pad-labels-row{grid-template-columns:repeat(4,46px);gap:5px}.pad-labels-row .pad-num{font-size:8px;width:7px}.pad-labels-row .pad-name{font-size:4px}.pads-grid{gap:5px}.pads-display{padding:8px;border-radius:6px}.pads-edit-btn{bottom:2px;right:2px}.edit-btn{padding:3px}.edit-btn svg{width:10px;height:10px}.knob-ring{width:38px;height:38px}.knob{width:30px;height:30px}.knob-indicator{transform-origin:center 12px;height:3px;top:4px}.knobs-grid{gap:6px 5px}.knob-label-row{width:38px;margin-top:1px}.knob-label{font-size:5px;letter-spacing:.2px}.knob-number{font-size:9px;bottom:-1px;left:-3px}.screen-and-status{gap:4px}.screen-buttons{gap:2px}}@media screen and (max-width: 700px) and (orientation: landscape){.device-frame{border-radius:10px;padding:2px}.device-inner{border-radius:8px;padding:6px 10px 10px}.device-top{gap:6px;margin-bottom:8px}.brand img{height:18px}.model-name{font-size:12px}.model-name .mini{font-size:9px}.wheel-housing{width:22px;height:70px}.wheels-section{padding:5px;gap:5px}.pad{width:44px;height:44px}.pad-labels-row{grid-template-columns:repeat(4,44px);gap:4px}.pads-grid{gap:4px}.pads-display{padding:6px}.knob-ring{width:36px;height:36px}.knob{width:28px;height:28px}.knob-indicator{transform-origin:center 11px;top:3px}.knobs-grid{gap:5px 4px}.knob-label-row{width:36px}.knob-label{font-size:4px}.knob-number{font-size:8px}.keyboard-section{margin-top:6px}}@media screen and (max-width: 600px) and (orientation: landscape){.device-inner{padding:5px 8px 8px}.device-top{gap:5px;margin-bottom:6px}.brand{display:none}.left-column{gap:4px}.wheel-housing{width:20px;height:60px}.wheels-section{padding:4px;gap:4px}.pad{width:40px;height:40px}.pad-labels-row{grid-template-columns:repeat(4,40px);gap:3px}.pad-labels-row .pad-name{display:none}.pad-labels-row .pad-label{justify-content:center}.pads-grid{gap:3px}.pads-display{padding:5px}.pads-edit-btn,.screen-buttons{display:none}.knob-ring{width:32px;height:32px}.knob{width:24px;height:24px}.knob-indicator{transform-origin:center 9px;height:3px;width:2px;top:2px}.knobs-grid{gap:4px 3px}.knob-label-row{width:32px}.knob-label{display:none}.knob-number{font-size:7px;position:static}.knob-label-row{justify-content:center;margin-top:0}.model-name{font-size:10px}.model-name .mini{font-size:8px}.keyboard-section{margin-top:4px}}@media screen and (max-width: 500px) and (orientation: landscape){.wheels-section,.left-column{display:none}.device-top{grid-template-columns:auto min-content auto}}@media screen and (max-width: 800px) and (orientation: landscape){.audio-controls{gap:12px;margin-top:16px}.audio-enable-btn{padding:12px 24px;font-size:16px;border-radius:10px}.audio-enable-btn .audio-icon{width:24px;height:24px}.selectors-row{gap:16px;flex-wrap:wrap;justify-content:center}.selector-label{font-size:12px}.selector-select{padding:8px 32px 8px 12px;font-size:12px;min-width:140px}}@media screen and (max-width: 600px) and (orientation: landscape){.audio-controls{gap:10px;margin-top:12px}.audio-enable-btn{padding:10px 20px;font-size:14px;border-radius:8px;gap:8px}.audio-enable-btn .audio-icon{width:20px;height:20px}.selectors-row{gap:12px}.instrument-selector,.kit-selector,.pattern-controls{flex-direction:column;gap:4px;align-items:flex-start}.pattern-controls{flex-direction:row;flex-wrap:wrap}.bpm-input{width:50px;padding:4px 6px;font-size:11px}.track-toggle{width:24px;height:24px}.selector-label{font-size:11px}.selector-select{padding:8px 28px 8px 10px;font-size:11px;min-width:120px;border-radius:6px}.pattern-btn{width:30px;height:30px}}@media screen and (max-width: 800px) and (orientation: landscape){.overlay-content{max-width:90%;max-height:85vh;padding:16px;border-radius:10px}.overlay-header{margin-bottom:12px}.overlay-title{font-size:12px}.close-btn{width:24px;height:24px;font-size:16px}}@media screen and (max-width: 600px) and (orientation: landscape){.overlay-content{padding:12px;border-radius:8px}.overlay-title{font-size:11px}.close-btn{width:22px;height:22px;font-size:14px}}@media (hover: none) and (pointer: coarse){.pad:hover:after{transform:none;box-shadow:inset 0 2px 3px #ffffff40,inset 0 -2px 4px #0003,0 2px 4px #0000004d}.wheel-housing:hover .wheel-surface{box-shadow:inset 0 1px 2px #ffffff4d,inset 0 -1px 2px #0000004d,0 2px 4px #00000080}.audio-enable-btn:hover{transform:none}.selector-select:hover{border-color:#555;background:linear-gradient(135deg,#444,#333)}.pad:active:after,.pad.active:after{transform:translateY(2px);box-shadow:inset 0 3px 6px #0006,0 0 1px #0003}.audio-enable-btn:active{transform:scale(.98)}.knob:active,.knob.dragging{box-shadow:0 2px 4px #00000080,0 0 15px #ffb47866}}.device-btn{background:linear-gradient(145deg,#2a2a2a,#1a1a1a);border:2px solid #8a3535;border-radius:4px;color:#ccc;font-size:6px;font-weight:600;text-transform:uppercase;cursor:pointer;padding:4px 6px;width:44px;height:28px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;transition:all .1s;font-family:inherit;line-height:1.1}.device-btn:hover{background:linear-gradient(145deg,#3a3a3a,#2a2a2a)}.device-btn:active,.device-btn.active{background:linear-gradient(145deg,#1a1a1a,#0a0a0a);transform:translateY(1px)}.device-btn.accent{background:linear-gradient(145deg,#5a4a2a,#3a3020);border-color:#8a7535}.device-btn.accent:hover{background:linear-gradient(145deg,#6a5a3a,#4a4030)}.device-btn[data-action=automation]{color:#f44}.device-btn .btn-num{font-size:7px;color:#888;font-weight:700}.device-btn .btn-label{font-size:5px;text-align:center;line-height:1.2}.device-btn .btn-icon{width:12px;height:12px;display:block;font-size:10px;line-height:1}.device-btn[data-action=continue] .btn-icon{width:16px;height:16px}.device-btn.record .btn-icon,.device-btn[data-action=automation] .btn-icon{font-size:14px;color:#f44}.device-btn .btn-icon.play-stop{font-size:8px}.device-btn .btn-icon.record-dot{font-size:12px}.red-accent-line{height:2px;background:linear-gradient(90deg,transparent 0%,#8a3535 10%,#c75050 50%,#8a3535 90%,transparent 100%);margin:4px 0}.wheel-buttons,.pads-buttons,.screen-bottom-buttons,.knobs-buttons{display:flex;gap:4px;justify-content:center;margin-top:8px}.knobs-buttons{max-width:100%}.knobs-buttons .device-btn{width:40px;min-width:40px;padding:4px}.screen-top-buttons{display:flex;gap:4px;justify-content:center;margin-top:4px;margin-bottom:4px}.knobs-buttons .device-btn{font-size:10px}.knobs-buttons .device-btn.record{color:#f44}.firmware-info{text-align:center;font-size:11px;color:#666;margin-top:12px;padding:8px;opacity:0;transition:opacity .3s ease}.firmware-info.visible{opacity:1}@media screen and (max-width: 900px) and (orientation: landscape){.device-btn{min-height:22px;padding:3px 5px;font-size:5px}.pads-buttons .device-btn{min-height:24px}.knobs-buttons .device-btn{min-height:22px;font-size:9px}}@media screen and (max-width: 800px) and (orientation: landscape){.device-btn{min-height:20px;padding:2px 4px;border-width:1px;border-radius:3px}.wheel-buttons{gap:4px;margin-top:6px}.wheel-buttons-labels span{font-size:3px}.pads-buttons{gap:3px;margin-top:6px}.pads-buttons .device-btn{min-height:22px}.screen-top-buttons,.screen-bottom-buttons{gap:3px}.screen-top-buttons{margin-top:6px}.screen-top-buttons .device-btn,.screen-bottom-buttons .device-btn{min-height:20px;font-size:5px}.knobs-buttons{gap:3px;margin-top:6px}.knobs-buttons .device-btn{min-height:22px;font-size:8px}.knobs-buttons-labels span{font-size:3px}.red-accent-line{margin:3px 0}}@media screen and (max-width: 700px) and (orientation: landscape){.device-btn{min-height:18px;font-size:4px}.wheel-buttons{gap:3px;margin-top:5px}.pads-buttons .device-btn{min-height:20px}.screen-top-buttons .device-btn,.screen-bottom-buttons .device-btn{min-height:18px}.knobs-buttons .device-btn{min-height:20px;font-size:7px}}@media screen and (max-width: 600px) and (orientation: landscape){.wheel-buttons-labels{display:none}.pads-buttons .device-btn{min-height:18px;font-size:4px}.screen-top-buttons .device-btn,.screen-bottom-buttons .device-btn{min-height:16px;font-size:5px}.knobs-buttons .device-btn{min-height:18px;font-size:6px}.knobs-buttons-labels{display:none}.red-accent-line{margin:2px 0;height:1px}}@media screen and (max-width: 500px) and (orientation: landscape){.wheel-buttons,.wheel-buttons-labels{display:none}}*{box-sizing:border-box}body{font-family:var(--mpk4-font-family, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);max-width:900px;margin:0 auto;padding:20px;background:var(--mpk4-app-bg, #1a1a1a);color:var(--mpk4-app-color, #eee);min-height:100vh;--mpk4-key-active-color: #2dd4bf;--mpk4-bass-key-active-color: #f7b731;overscroll-behavior:none}.theme-toggle{border-color:var(--mpk4-theme-toggle-border, rgba(199, 80, 80, .55));background:var(--mpk4-theme-toggle-bg, rgba(24, 24, 24, .92));color:var(--mpk4-theme-toggle-color, #f2f2f2);box-shadow:0 4px 14px var(--mpk4-theme-toggle-shadow, rgba(0, 0, 0, .18))}mpk4-keyboard{--mpk4-keyboard-height: 160px;--mpk4-white-key-width: 34px}mpk4-piano-roll{--mpk4-piano-roll-accent: var(--mpk4-key-active-color)}mpk4-piano-roll.bass-mode{--mpk4-piano-roll-accent: var(--mpk4-bass-key-active-color)}.overlay mpk4-screen-control .screen-container,.overlay mpk4-pad-grid .pads-container{display:none}@media screen and (max-width: 1024px) and (orientation: landscape){body{padding:16px;max-width:100%}}@media screen and (max-width: 900px) and (orientation: landscape){body{padding:12px}mpk4-keyboard{--mpk4-keyboard-height: 140px;--mpk4-white-key-width: 30px}}@media screen and (max-width: 800px) and (orientation: landscape){body{padding:10px}mpk4-keyboard{--mpk4-keyboard-height: 120px;--mpk4-white-key-width: 26px}}@media screen and (max-width: 700px) and (orientation: landscape){body{padding:8px}mpk4-keyboard{--mpk4-keyboard-height: 100px;--mpk4-white-key-width: 22px}}@media screen and (max-width: 600px) and (orientation: landscape){body{padding:6px}mpk4-keyboard{--mpk4-keyboard-height: 85px;--mpk4-white-key-width: 20px}}@media screen and (max-width: 500px) and (orientation: landscape){body{padding:4px}mpk4-keyboard{--mpk4-keyboard-height: 75px;--mpk4-white-key-width: 18px}}@media (pointer: coarse){body{-webkit-user-select:none;user-select:none;touch-action:manipulation}}.rotate-overlay{display:none;position:fixed;inset:0;background:#1a1a1a;z-index:9999;flex-direction:column;align-items:center;justify-content:center;gap:20px;color:#fff;text-align:center;padding:24px}.rotate-overlay svg{width:64px;height:64px;stroke:#c75050;animation:wiggle 1.5s ease-in-out infinite}@keyframes wiggle{0%,to{transform:rotate(-10deg)}50%{transform:rotate(10deg)}}.rotate-overlay h2{margin:0;font-size:18px}.rotate-overlay p{margin:0;font-size:14px;color:#888}@media screen and (max-width: 900px) and (orientation: portrait){.rotate-overlay{display:flex}}.start-overlay{position:fixed;inset:0;background:#000000eb;z-index:9998;display:flex;align-items:center;justify-content:center;color:#fff;padding:24px;transition:opacity .3s ease}.start-overlay.hidden{opacity:0;pointer-events:none}.start-overlay-card{width:min(420px,calc(100vw - 32px));display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:24px 24px 20px;border:1px solid rgba(255,255,255,.1);border-radius:18px;background:radial-gradient(circle at top,rgba(199,80,80,.14),transparent 46%),linear-gradient(180deg,#161618f5,#0a0a0cf5);box-shadow:0 20px 52px #0000006b,inset 0 1px #ffffff0f}.start-overlay-header{display:inline-flex;align-items:center;gap:10px}.start-overlay-icon{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,#c75050,#a03030);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px #c7505038}.start-overlay[data-phase=waiting-device] .start-overlay-icon{background:linear-gradient(135deg,#606774,#40464f);box-shadow:0 8px 24px #5860702e}.start-overlay[data-phase=awaiting-user] .start-overlay-icon{background:linear-gradient(135deg,#c75050,#a03030);box-shadow:0 10px 28px #c7505047}.start-overlay[data-phase=loading] .start-overlay-icon,.start-overlay[data-phase=finishing] .start-overlay-icon{background:linear-gradient(135deg,#d38c3f,#a6601f);box-shadow:0 8px 24px #d38c3f33}.start-overlay-icon svg{width:14px;height:14px;fill:#fff;margin-left:2px}.start-overlay-phase{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#c9b0b0;font-weight:700}.start-overlay[data-phase=awaiting-user] .start-overlay-phase{color:#d9a7a7}.start-overlay h2{margin:0;font-size:21px;font-weight:600;line-height:1.15}.start-overlay p{margin:0;font-size:13px;line-height:1.45;color:#acacb5;max-width:320px}.start-overlay-progress{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;width:100%;max-width:480px;margin-top:2px}.startup-progress-step{display:flex;align-items:center;justify-content:center;gap:8px;padding:7px 11px;border-radius:999px;background:#ffffff06;color:#787f8a;font-size:12px;text-align:center;min-height:40px;transition:background .2s ease,color .2s ease,border-color .2s ease;border:1px solid rgba(255,255,255,.06)}.startup-progress-step:before{content:"";width:9px;height:9px;border-radius:999px;background:currentColor;opacity:.35;flex:0 0 auto}.startup-progress-step.active{color:#f2d2d2;background:#c750501a;border-color:#c7505042}.startup-progress-step.active:before{opacity:1}.startup-progress-step.complete{color:#8fe2b1;background:#2c985914;border-color:#2c985933}.startup-progress-step.complete:before{opacity:1}.audio-enable-btn#startupActionBtn{min-width:250px;margin-top:4px;padding-inline:28px;box-shadow:0 12px 28px #c7505033}.start-overlay[data-phase=awaiting-user] #startupActionBtn{background:linear-gradient(180deg,#c75050,#b63d3d);border-color:#ffbfbf33;box-shadow:0 14px 34px #c750503d}.start-overlay[data-phase=awaiting-user] #startupActionBtn:hover{background:linear-gradient(180deg,#d35a5a,#c14747)}.start-overlay[data-phase=awaiting-user] #startupActionBtn:active{background:linear-gradient(180deg,#b84343,#a93636)}.start-overlay[data-phase=loading],.start-overlay[data-phase=finishing]{pointer-events:none}.start-overlay[data-phase=loading] .start-overlay-card,.start-overlay[data-phase=finishing] .start-overlay-card{gap:12px}.start-overlay[data-phase=loading] #startupProgress,.start-overlay[data-phase=finishing] #startupProgress,.start-overlay[data-phase=loading] #startupHint,.start-overlay[data-phase=finishing] #startupHint{display:none}.start-overlay[data-phase=loading] #startupTitle,.start-overlay[data-phase=finishing] #startupTitle{font-size:19px}.start-overlay[data-phase=loading] #startupDetail,.start-overlay[data-phase=finishing] #startupDetail{max-width:280px}.audio-enable-btn#startupActionBtn .audio-icon{display:inline-flex;align-items:center;justify-content:center}.audio-enable-btn#startupActionBtn .audio-icon svg{width:16px;height:16px;fill:currentColor}.start-overlay-hint{font-size:12px;color:#787f8a;max-width:280px;min-height:18px}.start-overlay[data-phase=awaiting-user]{cursor:pointer}.start-overlay[data-phase=awaiting-user] .start-overlay-card{box-shadow:0 20px 52px #0000006b,0 0 0 1px #c7505014,inset 0 1px #ffffff0f}@media (max-width: 640px){.start-overlay-card{padding:22px 18px 18px;gap:14px}.start-overlay h2{font-size:19px}.startup-progress-step{font-size:12px}.audio-enable-btn#startupActionBtn{min-width:min(240px,100%)}.start-overlay-progress{grid-template-columns:1fr}}.learn-mode-section{background:#0000004d;border-radius:8px;margin-top:12px;overflow:hidden;transition:all .3s ease}.learn-mode-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;cursor:pointer;user-select:none;transition:background .2s}.learn-mode-header:hover{background:#ffffff0d}.learn-mode-title{font-size:11px;font-weight:600;color:#888;text-transform:uppercase;letter-spacing:.5px}.learn-mode-toggle{font-size:10px;color:#666;transition:transform .3s}.learn-mode-toggle:before{content:"▶"}.learn-mode-section.expanded .learn-mode-toggle{transform:rotate(90deg)}.learn-mode-content{display:none;padding:0 16px 16px;flex-direction:column;gap:12px}.learn-mode-section.expanded .learn-mode-content{display:flex}.learn-track-selector{display:flex;align-items:center;gap:8px}.learn-track-selector label{font-size:11px;font-weight:500;color:#888}.learn-track-selector select{flex:1;max-width:200px;padding:6px 10px;font-size:11px;font-weight:500;color:#fff;background:linear-gradient(135deg,#444,#333);border:2px solid #555;border-radius:6px;cursor:pointer}.learn-track-selector select:hover{border-color:#777}.learn-track-selector select:focus{outline:none;border-color:#ffc107}.learn-mode-toggle-label{display:flex;align-items:center;gap:6px;font-size:11px;color:#888;cursor:pointer;user-select:none}.learn-mode-toggle-label input[type=checkbox]{width:14px;height:14px;accent-color:#ffc107}.learn-mode-toggle-label span{white-space:nowrap}.learn-status{font-size:13px;color:#ccc;padding:12px 16px;background:#0006;border-radius:6px;text-align:center;min-height:44px;display:flex;align-items:center;justify-content:center}.learn-status .play-text{color:#ffc107;font-weight:600}.learn-status.preview{color:#4ecdc4}.learn-status.completed{color:#4ade80}.learn-progress{display:flex;align-items:center;gap:12px}.learn-progress-bar{flex:1;height:8px;background:#ffffff1a;border-radius:4px;overflow:hidden;position:relative}.learn-progress-bar:after{content:"";position:absolute;left:0;top:0;height:100%;width:var(--progress, 0%);background:linear-gradient(90deg,#ffc107,#ff9800);border-radius:4px;transition:width .3s ease}.learn-progress-text{font-size:11px;font-weight:600;color:#888;min-width:50px;text-align:right}.learn-beat-position{font-size:14px;font-weight:700;font-family:var(--mpk4-font-mono, monospace);color:#ffc107;min-width:40px;text-align:center;background:#0006;padding:4px 8px;border-radius:4px}.learn-controls{display:flex;gap:8px}.learn-btn{flex:1;padding:8px 12px;font-size:11px;font-weight:600;color:#fff;background:linear-gradient(135deg,#555,#444);border:2px solid #666;border-radius:6px;cursor:pointer;transition:all .2s;text-transform:uppercase}.learn-btn:hover:not(:disabled){background:linear-gradient(135deg,#666,#555);border-color:#888}.learn-btn:disabled{opacity:.4;cursor:not-allowed}.learn-btn#learnStartBtn:not(:disabled){background:linear-gradient(135deg,#ffc107,#ff9800);border-color:#ffc107;color:#1a1a1a}.learn-btn#learnStartBtn:hover:not(:disabled){background:linear-gradient(135deg,#ffca28,#ffa726)}.pad.hint{--pad-led-color: #ffc107;--pad-led-intensity: .9;animation:pad-hint-slow 1.5s ease-in-out infinite}.pad.hint-soon{--pad-led-color: #ff6600;--pad-led-intensity: .95;animation:pad-hint-medium .6s ease-in-out infinite}.pad.hint-now{--pad-led-color: #00ff66;--pad-led-intensity: 1;animation:pad-hint-fast .25s ease-in-out infinite}@keyframes pad-hint-slow{0%,to{--pad-led-intensity: .5}50%{--pad-led-intensity: .9}}@keyframes pad-hint-medium{0%,to{--pad-led-intensity: .6}50%{--pad-led-intensity: 1}}@keyframes pad-hint-fast{0%,to{--pad-led-intensity: .7}50%{--pad-led-intensity: 1}}.pad.error{--pad-led-color: #ff4444 !important;--pad-led-intensity: 1 !important;animation:pad-error-flash .2s ease-out}@keyframes pad-error-flash{0%{--pad-led-intensity: 1}to{--pad-led-intensity: .5}}@media screen and (max-width: 700px) and (orientation: landscape){.learn-mode-header{padding:8px 12px}.learn-mode-content{padding:0 12px 12px;gap:10px}.learn-mode-title{font-size:10px}.learn-status{font-size:12px;padding:10px 12px}.learn-btn{padding:6px 10px;font-size:10px}}