*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
    color-scheme:dark;
    --bg:#0a0a0f;--bg-panel:#12121b;--bg-inset:#0c0c13;--bg-elevated:#1d1d2b;--bg-hover:#262638;
    --border:#23232f;--border-strong:#313144;
    --text:#e9e9f4;--text-dim:#9a9ab6;--text-faint:#62627e;
    --accent:#2de0a5;--accent-strong:#19b585;--accent-ink:#062a1e;--accent-soft:rgba(45,224,165,.14);
    --accent-kick:#ff4466;--accent-snare:#44aaff;--accent-hihat:#9fffd2;--accent-clap:#ffc850;
    --accent-primary:var(--accent);
    --radius:10px;--radius-sm:6px;
    --mono:'SF Mono',ui-monospace,'Cascadia Code',Menlo,Consolas,monospace;
    --transition:140ms ease;
}
html{scrollbar-color:var(--bg-elevated) var(--bg)}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;font-size:14px}
[hidden]{display:none!important}

/* ---------- Header ---------- */
.app{max-width:1840px;margin:0 auto;padding:14px 22px 30px}
.app-header{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:8px 0 14px;margin-bottom:16px;border-bottom:1px solid var(--border)}
.app-header h1{display:flex;align-items:center;font-size:1.1rem;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.app-header h1::before{content:'';width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);margin-right:10px}
.app-header h1 span{font-weight:450;font-size:.76rem;color:var(--text-faint);margin-left:9px;letter-spacing:.02em}
.connection-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.panel-connections{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.panel-slot{display:flex;align-items:center;gap:7px;padding:4px 6px 4px 10px;background:var(--bg-panel);border-radius:var(--radius-sm);border:1px solid var(--border)}
.panel-slot-label{font-size:.66rem;font-weight:650;color:var(--text-faint);min-width:12px;text-align:center}
.panel-slot .btn{padding:3px 9px;font-size:.68rem}
.panel-slot .status-dot{width:7px;height:7px;border-radius:50%;background:var(--bg-elevated);border:1px solid var(--border-strong);flex-shrink:0}
.panel-slot .status-dot.connected{background:var(--accent);border-color:var(--accent);box-shadow:0 0 6px var(--accent)}
.panel-slot.connected{border-color:rgba(45,224,165,.35)}
.status-badge{font-size:.72rem;padding:5px 11px;background:var(--bg-panel);color:var(--text-dim);border:1px solid var(--border);border-radius:var(--radius-sm)}
.status-badge.connected{background:var(--accent-soft);color:var(--accent);border-color:rgba(45,224,165,.3)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:7px 14px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--bg-elevated);color:var(--text);font-size:.76rem;font-weight:550;font-family:inherit;cursor:pointer;transition:background var(--transition),border-color var(--transition);user-select:none}
.btn:hover{background:var(--bg-hover);border-color:var(--text-faint)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--accent-soft);border-color:var(--accent)}
.btn-play{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:650;min-width:84px}
.btn-play:hover{background:var(--accent-strong);border-color:var(--accent-strong)}
.btn-play.playing{background:var(--accent-kick);border-color:var(--accent-kick);color:#fff}
.btn-stream{font-size:.72rem;padding:6px 12px}
.btn-stream.streaming{background:var(--accent-kick);border-color:var(--accent-kick);color:#fff}
.btn-small{padding:4px 11px;font-size:.7rem}
.btn-file{cursor:pointer;margin:0}

/* ---------- Layout ---------- */
.app-main{display:flex;flex-direction:column;gap:18px}
.visualizer-row{display:flex;gap:18px;align-items:flex-start;width:100%}
.displays-section{display:flex;flex-direction:column;align-items:center;flex:0 0 auto;min-width:0;position:sticky;top:14px}
.led-preview-section{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;max-width:300px}
.led-preview-section h3{font-size:.66rem;font-weight:650;color:var(--text-faint);text-transform:uppercase;letter-spacing:.1em}
.led-preview-wrapper{background:#000;border:1px solid var(--border-strong);box-shadow:0 8px 30px rgba(0,0,0,.45)}
.led-preview-stage{position:relative;display:inline-block;line-height:0}
#panelCanvas{display:none}
#previewCanvas{display:block;width:240px;height:576px;image-rendering:pixelated;image-rendering:crisp-edges}
.pixel-grid-overlay{position:absolute;inset:0;pointer-events:none;--grid-cols:40;--grid-rows:96;background-image:linear-gradient(to right,rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.14) 1px,transparent 1px);background-size:calc(100% / var(--grid-cols)) calc(100% / var(--grid-rows));box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);mix-blend-mode:screen}
.display-controls{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;width:100%}
.pixel-grid-toggle{font-size:.72rem;color:var(--text-dim)}
.panel-meta{font-size:.66rem;color:var(--text-faint);font-family:var(--mono)}
.fps-display{font-size:.7rem;color:var(--text-dim);font-family:var(--mono)}

/* ---------- Settings column ---------- */
.settings-section{display:flex;flex-direction:column;gap:10px;flex:1 1 0;min-width:400px;max-height:calc(100vh - 96px);overflow-y:auto;padding-right:6px;scrollbar-gutter:stable}
.settings-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:2px 2px 4px}
.settings-head h2{font-size:.92rem;font-weight:650;letter-spacing:.01em}
.mode-pick{display:flex;align-items:center;gap:9px}
.mode-pick label{font-size:.72rem;font-weight:500;color:var(--text-dim)}
.mode-pick select{width:190px;height:32px;font-weight:600}

/* ---------- Panels ---------- */
.panel{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius)}
.panel>summary{display:flex;align-items:center;gap:10px;padding:11px 14px;cursor:pointer;list-style:none;font-size:.67rem;font-weight:650;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);user-select:none;transition:color var(--transition)}
.panel>summary:hover{color:var(--text)}
.panel>summary::-webkit-details-marker{display:none}
.panel>summary::before{content:'';width:6px;height:6px;border-right:1.5px solid var(--text-faint);border-bottom:1.5px solid var(--text-faint);transform:rotate(-45deg) translateY(-1px);transition:transform var(--transition);flex-shrink:0}
.panel[open]>summary::before{transform:rotate(45deg)}
.panel-note{margin-left:auto;font-size:.62rem;font-weight:500;letter-spacing:.02em;text-transform:none;color:var(--text-faint)}
.panel-body{display:flex;flex-direction:column;gap:14px;padding:4px 14px 16px}

.subsection{display:flex;flex-direction:column;gap:11px;padding-top:2px}
.subsection h4{display:flex;align-items:center;gap:10px;font-size:.62rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--text-faint)}
.subsection h4::after{content:'';flex:1;height:1px;background:var(--border)}

.settings-hint{font-size:.72rem;color:var(--text-faint);line-height:1.5}
.settings-hint--field{font-size:.66rem;margin-top:1px}

/* ---------- Fields ---------- */
.fields{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:13px 16px}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.field>label,.field-head>label{font-size:.72rem;font-weight:500;color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.field-value{font-family:var(--mono);font-size:.68rem;color:var(--text);flex-shrink:0}
.field--switch,.field--btn{justify-content:center;min-height:44px}
.field:has(> input[type="range"]:disabled) .field-head{opacity:.45}

/* ---------- Switches ---------- */
.switch{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;font-weight:500;color:var(--text);cursor:pointer;user-select:none;min-width:0}
.switch>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.switch input{-webkit-appearance:none;appearance:none;width:32px;height:18px;border-radius:999px;background:var(--bg-elevated);border:1px solid var(--border-strong);position:relative;cursor:pointer;transition:background var(--transition),border-color var(--transition);flex-shrink:0;margin:0}
.switch input::after{content:'';position:absolute;top:2px;left:2px;width:12px;height:12px;border-radius:50%;background:var(--text-dim);transition:transform var(--transition),background var(--transition)}
.switch input:checked{background:var(--accent);border-color:var(--accent)}
.switch input:checked::after{transform:translateX(14px);background:var(--accent-ink)}
.switch input:focus-visible{outline:none;box-shadow:0 0 0 3px var(--accent-soft)}
.switch:has(input:disabled){opacity:.45;cursor:not-allowed}
.switch--sub{font-size:.7rem;color:var(--text-dim);margin-top:1px}
.switch--sub input{width:26px;height:15px}
.switch--sub input::after{width:9px;height:9px}
.switch--sub input:checked::after{transform:translateX(11px)}

/* ---------- Sliders ---------- */
input[type="range"]{-webkit-appearance:none;appearance:none;width:100%;height:16px;background:transparent;cursor:pointer;margin:0}
input[type="range"]::-webkit-slider-runnable-track{height:4px;border-radius:999px;background:linear-gradient(90deg,var(--accent) var(--fill,0%),var(--bg-elevated) var(--fill,0%))}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:13px;height:13px;border-radius:50%;background:#f2f2f7;border:none;margin-top:-4.5px;box-shadow:0 1px 3px rgba(0,0,0,.55);transition:transform 100ms ease}
input[type="range"]:hover::-webkit-slider-thumb{transform:scale(1.15)}
input[type="range"]:active::-webkit-slider-thumb{transform:scale(1.2);background:#fff}
input[type="range"]::-moz-range-track{height:4px;border-radius:999px;background:var(--bg-elevated)}
input[type="range"]::-moz-range-progress{height:4px;border-radius:999px;background:var(--accent)}
input[type="range"]::-moz-range-thumb{width:13px;height:13px;border-radius:50%;background:#f2f2f7;border:none;box-shadow:0 1px 3px rgba(0,0,0,.55)}
input[type="range"]:focus-visible{outline:none}
input[type="range"]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 4px var(--accent-soft)}
input[type="range"]:disabled{cursor:default}
input[type="range"]:disabled::-webkit-slider-runnable-track{background:var(--bg-elevated)}
input[type="range"]:disabled::-webkit-slider-thumb{background:var(--text-faint);transform:none}
input[type="range"]:disabled::-moz-range-progress{background:var(--bg-elevated)}
input[type="range"]:disabled::-moz-range-thumb{background:var(--text-faint)}

/* ---------- Selects, text & number inputs ---------- */
select{appearance:none;-webkit-appearance:none;height:30px;padding:0 26px 0 10px;background:var(--bg-inset) url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5' viewBox='0 0 8 5'%3E%3Cpath d='M1 1l3 3 3-3' fill='none' stroke='%239a9ab6' stroke-width='1.4' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 9px center;border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text);font-size:.78rem;font-family:inherit;cursor:pointer;width:100%;min-width:0;transition:border-color var(--transition)}
select:hover{border-color:var(--text-faint)}
select:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
input[type="text"],input[type="number"]{height:30px;padding:0 10px;background:var(--bg-inset);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text);font-size:.78rem;font-family:inherit;width:100%;min-width:0;transition:border-color var(--transition)}
input[type="text"]:focus-visible,input[type="number"]:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}

/* ---------- Color pickers ---------- */
.color-pick{width:100%;height:30px;padding:3px;background:var(--bg-inset);border:1px solid var(--border-strong);border-radius:var(--radius-sm);cursor:pointer;transition:border-color var(--transition)}
.color-pick:hover:not(:disabled){border-color:var(--text-faint)}
.color-pick::-webkit-color-swatch-wrapper{padding:0}
.color-pick::-webkit-color-swatch{border:none;border-radius:3px}
.color-pick::-moz-color-swatch{border:none;border-radius:3px}
.color-pick:disabled{opacity:.35;cursor:default}

/* ---------- Morph steps ---------- */
.morph-steps{display:flex;flex-direction:column;gap:9px;padding:11px 12px;background:var(--bg-inset);border:1px solid var(--border);border-radius:var(--radius-sm)}
.morph-step-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:8px}
.morph-step{display:flex;align-items:center;gap:7px;min-width:0}
.morph-step select{flex:1}
.morph-step-num{display:flex;align-items:center;justify-content:center;width:19px;height:19px;border-radius:50%;background:var(--bg-elevated);border:1px solid var(--border-strong);font-size:.6rem;font-family:var(--mono);color:var(--text-dim);flex-shrink:0}
.morph-step-remove{display:flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:var(--radius-sm);background:transparent;border:1px solid transparent;color:var(--text-faint);font-size:.9rem;line-height:1;cursor:pointer;flex-shrink:0;padding:0;transition:all var(--transition)}
.morph-step-remove:hover:not(:disabled){color:var(--accent-kick);border-color:var(--border-strong);background:var(--bg-elevated)}
.morph-step-remove:disabled{opacity:.3;cursor:default}
.morph-steps-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.morph-steps-foot .switch{font-size:.72rem;color:var(--text-dim)}

/* ---------- Drum text tabs ---------- */
.text-word-tabs{display:flex;flex-direction:column;gap:12px}
.text-tab-bar{display:flex;gap:5px;flex-wrap:wrap;padding:3px;background:var(--bg-inset);border:1px solid var(--border);border-radius:var(--radius-sm);width:fit-content}
.text-tab{padding:5px 14px;font-size:.72rem;font-weight:600;background:transparent;border:none;border-radius:4px;color:var(--text-dim);cursor:pointer;transition:all 120ms ease}
.text-tab:hover{color:var(--text)}
.text-tab.active{color:#0a0a12}
.text-tab[data-text-tab="kick"].active{background:var(--accent-kick);color:#fff}
.text-tab[data-text-tab="snare"].active{background:var(--accent-snare);color:#06121f}
.text-tab[data-text-tab="hihat"].active{background:var(--accent-hihat);color:#06231a}
.text-tab[data-text-tab="clap"].active{background:var(--accent-clap);color:#241a04}
.text-tab-panel{display:none}
.text-tab-panel.active{display:block}

/* ---------- Sequencer ---------- */
.sequencer-section{background:var(--bg-panel);border-radius:var(--radius);padding:16px 18px;border:1px solid var(--border)}
.sequencer-section h2{font-size:.67rem;font-weight:650;margin-bottom:14px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.1em}
.transport-controls{display:flex;align-items:center;gap:16px;margin-bottom:14px;flex-wrap:wrap}
.tempo-control,.master-vol-control{display:flex;align-items:center;gap:8px}
.tempo-control label,.master-vol-control label{font-size:.72rem;color:var(--text-dim);font-weight:500}
.tempo-control input[type="range"],.master-vol-control input[type="range"]{width:110px}
.tempo-control input[type="number"]{width:56px;text-align:center;font-family:var(--mono);font-size:.76rem}
.backing-track-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 10px;padding:9px 12px;background:var(--bg-inset);border:1px solid var(--border);border-radius:var(--radius-sm)}
.backing-track-row label[for="backingVolSlider"]{font-size:.72rem;color:var(--text-dim);font-weight:500}
.backing-track-name{font-size:.73rem;color:var(--text-dim);flex:1;min-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.backing-track-row input[type="range"]{width:90px}
.sequence-controls{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.setting-group{display:flex;flex-direction:column;gap:5px}
.setting-group label{font-size:.7rem;color:var(--text-dim);font-weight:500}
.sequence-length-control{min-width:170px}
.page-selector{display:flex;gap:5px;flex-wrap:wrap}
.page-btn{padding:6px 12px;font-size:.72rem;font-weight:600;background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text-dim);cursor:pointer;transition:all 120ms ease}
.page-btn:hover{border-color:var(--text-faint);color:var(--text)}
.page-btn.active{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.follow-pages-toggle{font-size:.72rem;color:var(--text-dim);padding-bottom:4px}
.step-grid-header{display:flex;align-items:flex-end;gap:10px;margin:12px 0 6px;padding-left:110px;position:relative}
.step-grid-label{font-size:.64rem;font-weight:650;color:var(--text-faint);text-transform:uppercase;letter-spacing:.08em;position:absolute;left:0}
.beat-ruler{display:flex;gap:3px;flex:1;height:14px;align-items:center}
.beat-ruler span{flex:1 1 0;min-width:12px;font-size:.6rem;color:var(--text-faint);text-align:center;font-family:var(--mono)}
.step-grid{display:flex;flex-direction:column;gap:9px;padding:13px;background:var(--bg-inset);border-radius:var(--radius-sm);border:1px solid var(--border);min-height:120px}
.step-grid.painting,.step-grid.painting .step{user-select:none;-webkit-user-select:none}
.step-grid.painting .step{cursor:crosshair}
.track{display:flex;align-items:center;gap:10px;width:100%}
.track-header{display:flex;align-items:center;gap:6px;min-width:100px;flex-shrink:0}
.track-copy-btn{padding:3px 7px;font-size:.62rem;line-height:1;flex-shrink:0}
.track-name{font-size:.78rem;font-weight:650;min-width:48px;text-transform:capitalize}
.track[data-instrument="kick"] .track-name{color:var(--accent-kick)}
.track[data-instrument="snare"] .track-name{color:var(--accent-snare)}
.track[data-instrument="hihat"] .track-name{color:var(--accent-hihat)}
.track[data-instrument="clap"] .track-name{color:var(--accent-clap)}
.track[data-instrument="morph"] .track-name{color:var(--accent)}
.track[data-instrument="morph"]{padding-top:8px;border-top:1px dashed var(--border-strong)}
.steps{display:grid;grid-template-columns:repeat(16,1fr);gap:4px;flex:1;min-width:0;height:42px}
.step{height:100%;min-width:0;background:var(--bg-elevated);cursor:pointer;transition:all 80ms ease;border:1px solid var(--border-strong);border-radius:4px;position:relative}
.step:hover{background:var(--bg-hover);border-color:var(--text-faint);transform:translateY(-1px)}
.step.active{border-color:rgba(255,255,255,.25)}
.track[data-instrument="kick"] .step.active{background:var(--accent-kick);border-color:#ff6688;box-shadow:0 0 10px -3px var(--accent-kick)}
.track[data-instrument="snare"] .step.active{background:var(--accent-snare);border-color:#66bbff;box-shadow:0 0 10px -3px var(--accent-snare)}
.track[data-instrument="hihat"] .step.active{background:var(--accent-hihat);border-color:#d0ffe8;box-shadow:0 0 10px -3px var(--accent-hihat)}
.track[data-instrument="clap"] .step.active{background:var(--accent-clap);border-color:#ffd880;box-shadow:0 0 10px -3px var(--accent-clap)}
.track[data-instrument="morph"] .step.active{background:var(--accent);border-color:#64f1c5;box-shadow:0 0 10px -3px var(--accent)}
.step.current{border-color:#fff!important;box-shadow:0 0 0 2px rgba(255,255,255,.35)!important;transform:scale(1.06);z-index:1}
.step.active.current{transform:scale(1.08)}
.step:nth-child(4n+1):not(:first-child)::before{content:'';position:absolute;left:-3px;top:4px;bottom:4px;width:1px;background:rgba(255,255,255,.1)}
.export-controls{display:flex;flex-direction:column;gap:8px;margin-top:12px;padding:10px 12px;background:var(--bg-inset);border:1px solid var(--border);border-radius:var(--radius-sm)}
.export-row{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}
.export-loops{min-width:100px}
.export-loops input[type="number"]{font-family:var(--mono)}
.export-info{font-size:.7rem;color:var(--text-faint);font-family:var(--mono)}
.export-progress{display:flex;align-items:center;gap:10px}
.export-progress-track{flex:1;height:7px;background:var(--bg);border:1px solid var(--border);border-radius:999px;overflow:hidden}
.export-progress-fill{height:100%;width:0;background:var(--accent);transition:width 80ms linear}
.export-progress-text{min-width:36px;font-size:.7rem;color:var(--text-dim);font-family:var(--mono);text-align:right}
.pattern-controls{display:flex;gap:8px;margin-top:12px;justify-content:flex-end}

/* ---------- Scrollbars ---------- */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:999px;border:3px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}

/* ---------- Responsive ---------- */
@media(max-width:1100px){
    .visualizer-row{flex-direction:column}
    .displays-section{position:static;width:100%}
    .settings-section{min-width:unset;width:100%;max-height:none;overflow:visible;padding-right:0}
    .led-preview-section{max-width:100%}
    #previewCanvas{width:min(280px,70vw);height:auto;aspect-ratio:40/96}
}
@media(max-width:640px){
    .fields{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}
    .settings-head{flex-direction:column;align-items:stretch}
    .mode-pick select{width:100%}
    .track{flex-direction:column;align-items:stretch;gap:6px}
    .track-header{min-width:unset}
    .step-grid-header{padding-left:0;margin-top:8px}
    .step-grid-label{position:static;margin-bottom:4px;display:block}
    .steps{flex:0 0 auto;height:36px}
    #previewCanvas{width:min(240px,85vw);height:auto;aspect-ratio:40/96}
}