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120px}#root{position:relative;z-index:1}button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;touch-action:manipulation}html{-webkit-tap-highlight-color:transparent}input{font:inherit;color:inherit}::selection{background:var(--accent);color:var(--on-accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--r-sm)}button:focus:not(:focus-visible),input:focus:not(:focus-visible){outline:none}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.app{display:grid;grid-template-rows:auto 1fr auto;height:100%}.main{display:grid;grid-template-columns:1fr 332px;gap:14px;padding:14px 16px;min-height:0;overflow:hidden}.left-col{display:flex;flex-direction:column;gap:12px;min-width:0;min-height:0;overflow-y:auto;padding-right:2px}body.k-booted .appbar{animation:k-panel-in var(--t-base) var(--ease-out) both}body.k-booted 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var(--ease)}.name-input::placeholder{color:var(--text-faint)}.name-input:hover{border-color:var(--line)}.name-input:focus{outline:none;border-color:var(--accent);background:var(--surface-1)}.appbar-actions{display:flex;align-items:center;gap:6px}.pop-menu{position:absolute;top:calc(100% + 6px);left:0;z-index:45;background:var(--surface-2);border:1px solid var(--line-strong);border-radius:var(--r-md);box-shadow:0 12px 28px #00000080,inset 0 1px #ffffff0a;display:flex;flex-direction:column;min-width:148px;overflow:hidden;animation:k-panel-in var(--t-fast) var(--ease-out)}.export-wrap .pop-menu{left:auto;right:0}.pop-menu button{display:flex;align-items:center;gap:8px;height:var(--h-ctl);padding:0 12px;text-align:left;font-size:13px;color:var(--text-dim);white-space:nowrap;transition:background var(--t-instant) var(--ease),color var(--t-instant)}.pop-menu button:hover:not(:disabled){background:var(--hover);color:var(--text)}.pop-menu button:disabled{opacity:.4}.export-wrap{position:relative}.timeline-zone,.suggestions-zone,.arr-strip,.detail-panel{background:var(--surface-1);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:inset 0 1px #ffffff0a}.timeline-zone,.suggestions-zone{padding:12px 14px 14px}.zone-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;min-height:var(--h-ctl)}.section-tabs{display:flex;align-items:center;gap:5px;flex-wrap:wrap}.section-tab{position:relative;display:flex;align-items:center;height:var(--h-ctl);background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}.section-tab:hover{border-color:var(--line-strong);background:var(--hover)}.section-tab.on{border-color:var(--accent);background:var(--surface-2);box-shadow:0 0 0 1px var(--accent),0 0 10px -2px var(--accent-glow)}.section-tab-btn{display:flex;align-items:center;gap:8px;height:100%;padding:0 4px 0 11px;font-size:13px;color:var(--text-dim)}.section-tab.on .section-tab-btn{color:var(--text);font-weight:500}.section-tab-label{text-transform:lowercase}.section-tab-code{font-family:var(--font-mono);font-size:9px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint)}.section-tab.on .section-tab-code{color:var(--accent)}.section-tab-menu{display:inline-flex;align-items:center;height:100%;padding:0 8px 0 2px;color:var(--text-faint);opacity:0;transition:opacity var(--t-fast),color var(--t-fast)}.section-tab:hover .section-tab-menu,.section-tab.on .section-tab-menu{opacity:1}.section-tab-menu:hover{color:var(--text)}.section-tab input{background:transparent;border:none;outline:none;color:var(--text);font-size:13px;padding:0 11px;width:110px;height:100%}.section-tab.add{width:var(--h-ctl);justify-content:center;border-style:dashed;border-color:var(--line-strong);color:var(--text-faint);background:transparent}.section-tab.add:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}.timeline{display:flex;gap:9px;flex-wrap:wrap;align-items:stretch}.chord-card{position:relative;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:3px;min-width:96px;min-height:82px;padding:12px 16px 10px;background:linear-gradient(180deg,var(--surface-3) 0%,var(--surface-2) 100%);border:1px solid var(--line);border-bottom:2px solid var(--bg-deep);border-radius:var(--r-md);cursor:pointer;transition:transform var(--t-instant) var(--ease),border-color var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease);-webkit-user-select:none;user-select:none;box-shadow:inset 0 1px #ffffff0d}.chord-card:before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;border-radius:1px;background:var(--fn-color, var(--text-faint));opacity:.9}.chord-card:hover{border-color:var(--line-strong);border-bottom-color:var(--bg-deep)}.chord-card:active{transform:translateY(1px);border-bottom-width:1px}.chord-card.selected{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),inset 0 1px #ffffff0d}.chord-card.playing{animation:cardPulse .45s var(--ease-out);border-color:color-mix(in srgb,var(--fn-color, var(--accent)) 65%,transparent);box-shadow:0 0 16px -2px color-mix(in srgb,var(--fn-color, var(--accent)) 45%,transparent),inset 0 1px #ffffff0d}@keyframes cardPulse{0%{transform:scale(1.03)}to{transform:scale(1)}}.fn-tonic{--fn-color: var(--tint-tonic)}.fn-sub{--fn-color: var(--tint-sub)}.fn-dom{--fn-color: var(--tint-dom)}.fn-chrom{--fn-color: var(--tint-chrom)}.chord-card-roman{font-family:var(--font-mono);font-size:10px;font-weight:700;letter-spacing:.1em;color:var(--text-faint)}.chord-card-name{font-family:var(--font-ui);font-size:23px;font-weight:700;letter-spacing:-.01em;line-height:1.1}.chord-card-remove{position:absolute;top:4px;right:4px;display:inline-flex;padding:3px;border-radius:var(--r-sm);color:var(--text-faint);opacity:0;transition:opacity var(--t-fast),color var(--t-fast),background var(--t-fast)}.chord-card:hover .chord-card-remove{opacity:1}.chord-card-remove:hover{color:var(--text);background:var(--hover)}.chord-card.ghost{border:1px dashed var(--line-strong);background:transparent;color:var(--text-faint);min-width:56px;box-shadow:none}.chord-card.ghost:before{display:none}.chord-card.ghost:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}.midi-banner{display:inline-flex;align-items:center;gap:6px;height:var(--h-ctl);background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 40%,transparent);color:var(--text);border-radius:var(--r-md);padding:0 12px;font-size:13px;animation:k-panel-in var(--t-base) var(--ease-out)}.midi-banner strong{font-weight:700;color:var(--accent)}.lanes{display:flex;flex-direction:column;gap:10px}.lane{display:grid;grid-template-columns:104px 1fr;align-items:start;gap:10px}.lane-head{display:flex;flex-direction:column;gap:2px;padding-top:7px}.lane-label{font-family:var(--font-mono);font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.lane-safe .lane-label{color:var(--safe)}.lane-colorful .lane-label{color:var(--colorful)}.lane-surprising .lane-label{color:var(--surprising)}.lane-tag{font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint)}.lane-chips{display:flex;flex-wrap:nowrap;gap:6px;overflow-x:auto;scrollbar-width:none;padding:2px 0 6px;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 46px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 46px),transparent)}.lane-chips::-webkit-scrollbar{display:none}.lane-chips .chip{flex-shrink:0}.chip{height:var(--h-ctl);display:inline-flex;align-items:center;padding:0 12px;font-size:15px;font-weight:500;background:var(--surface-2);border:1px solid var(--line);border-left:2px solid var(--fn-color, var(--line-strong));border-bottom:2px solid var(--bg-deep);border-radius:var(--r-md);transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-instant);animation:k-panel-in var(--t-base) var(--ease-out) backwards}.chip:hover{background:var(--hover);border-color:var(--line-strong);border-left-color:var(--fn-color, var(--line-strong));border-bottom-color:var(--bg-deep)}.chip:active{transform:translateY(1px);border-bottom-width:1px}.chip.small{font-size:13px;padding:0 10px}.arr-strip{display:flex;align-items:center;gap:12px;padding:10px 14px}.arr-chips{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.arr-chip{display:inline-flex;align-items:center;gap:2px;height:24px;padding:0 4px 0 10px;font-family:var(--font-mono);font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-sm);cursor:grab;transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease);-webkit-user-select:none;user-select:none}.arr-chip:hover{border-color:var(--line-strong);color:var(--text)}.arr-chip.playing{border-color:var(--accent);color:var(--accent);box-shadow:0 0 10px -2px var(--accent-glow)}.arr-remove{display:inline-flex;align-items:center;padding:2px;color:var(--text-faint);opacity:0;transition:opacity var(--t-fast)}.arr-chip:hover .arr-remove{opacity:1}.arr-remove:hover{color:var(--text)}.arr-add-wrap{position:relative;display:inline-flex}.arr-chip.add{padding:0 7px;border-style:dashed;border-color:var(--line-strong);background:transparent;cursor:pointer}.arr-chip.add:hover{color:var(--accent);border-color:var(--accent)}.detail-panel{padding:16px;overflow-y:auto;min-height:0;display:flex;flex-direction:column;gap:12px;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.detail-panel.empty{align-items:center;justify-content:center}.detail-empty{text-align:center;color:var(--text-faint);max-width:210px;font-size:13px;line-height:1.55}.detail-empty-icon{display:block;font-size:20px;margin-bottom:8px;color:var(--text-faint)}.detail-head{display:flex;flex-direction:column;gap:5px}.detail-name{font-family:var(--font-ui);font-size:37px;font-weight:700;letter-spacing:-.015em;line-height:1.05}.detail-roman{font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--fn-color, var(--text-dim))}.detail-live{color:var(--safe)}.detail-hint{font-family:var(--font-mono);font-size:11.5px;line-height:1.6;color:var(--text-dim);background:var(--bg-deep);border:1px solid var(--line);border-radius:var(--r-sm);padding:8px 10px;box-shadow:inset 0 1px 3px #00000080}.detail-diagrams{display:flex;flex-direction:column;gap:12px}.piano-diagram{width:100%;height:auto}.pk-white{fill:var(--key-white);stroke:var(--bg-deep);stroke-width:1}.pk-white.on{fill:var(--accent);filter:drop-shadow(0 0 5px var(--accent-glow))}.pk-white.on.bass{fill:var(--tint-dom);filter:drop-shadow(0 0 5px rgba(139,124,240,.4))}.pk-black{fill:var(--key-black);stroke:var(--bg-deep);stroke-width:1}.pk-black.on{fill:var(--accent);filter:drop-shadow(0 0 5px var(--accent-glow))}.pk-black.on.bass{fill:var(--tint-dom)}.pk-label{font-size:10px;fill:var(--text-dim);font-family:var(--font-mono)}.pk-label.dark{fill:var(--on-accent);font-weight:700}.guitar-wrap{display:flex;flex-direction:column;align-items:center;gap:6px}.guitar-diagram{width:142px;height:auto}.gd-string,.gd-fret{stroke:var(--text-faint);stroke-width:1}.gd-nut{fill:var(--text-dim)}.gd-dot{fill:var(--accent)}.gd-finger{font-size:10px;fill:var(--on-accent);font-weight:700;font-family:var(--font-mono)}.gd-barre{fill:var(--accent);opacity:.85}.gd-mute{font-size:12px;fill:var(--text-faint)}.gd-open{fill:none;stroke:var(--text-dim);stroke-width:1.5}.gd-fretnum{font-size:10px;fill:var(--text-dim);font-family:var(--font-mono)}.no-shape{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint);text-align:center;padding:10px}.swaps{display:flex;flex-direction:column;gap:9px;padding-top:10px;border-top:1px solid var(--line)}.swap-chips{display:flex;flex-wrap:wrap;gap:6px}.transport{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;padding:12px 22px;border-top:1px solid var(--line);background:linear-gradient(180deg,var(--surface-1) 0%,var(--k-faceplate-deep) 100%);box-shadow:inset 0 1px #ffffff0a}.play-btn{width:44px;height:40px;display:grid;place-items:center;background:var(--accent);color:var(--on-accent);border:1px solid var(--accent);border-bottom:3px solid var(--accent-press);border-radius:var(--r-md);transition:filter var(--t-fast) var(--ease),transform var(--t-instant);box-shadow:0 0 14px -4px var(--accent-glow),inset 0 1px #ffffff59}.play-btn:hover:not(:disabled){filter:brightness(1.07)}.play-btn:active{transform:translateY(1px);border-bottom-width:2px}.play-btn.on{background:var(--surface-3);color:var(--text);border-color:var(--line-strong);border-bottom-color:var(--bg-deep);box-shadow:inset 0 1px #ffffff0f}.play-btn:disabled{opacity:.35;box-shadow:none}.loop-toggle{height:var(--h-ctl);display:inline-flex;align-items:center;gap:6px;padding:0 11px;font-family:var(--font-mono);font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease)}.loop-toggle:hover{border-color:var(--line-strong);color:var(--text)}.loop-toggle.song{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 45%,transparent);background:var(--accent-soft)}.beat-dots{display:flex;gap:6px}.beat-dot{width:6px;height:6px;border-radius:2px;background:var(--line-strong);transition:background var(--t-instant) ease-out,box-shadow var(--t-instant) ease-out}.beat-dot.on{background:var(--accent);box-shadow:0 0 7px var(--accent-glow)}.tempo-ctl{display:flex;align-items:center;gap:9px;flex:0 1 210px;min-width:140px}.tempo-ctl .k-slider{flex:1}.tempo-readout{font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--text);min-width:30px;text-align:right;font-variant-numeric:tabular-nums}.ctl-group{display:flex;align-items:center;gap:8px}.vol-ctl{display:flex;align-items:center;gap:8px;color:var(--text-dim)}.vol-ctl .k-slider{width:84px}.midi-status{margin-left:auto;display:flex;align-items:center;gap:7px}.midi-dot{width:7px;height:7px;border-radius:2px;background:var(--text-faint);opacity:.5}.midi-status.on .midi-dot{background:var(--safe);opacity:1;box-shadow:0 0 7px #7fb0698c}.midi-status.on .midi-label{color:var(--safe)}.key-picker{position:relative}.key-btn{gap:7px}.key-btn-value{text-transform:lowercase}.key-caret{color:var(--text-faint)}.key-pop{position:absolute;top:calc(100% + 6px);left:0;z-index:40;background:var(--surface-2);border:1px solid var(--line-strong);border-radius:var(--r-lg);box-shadow:0 12px 28px #00000080,inset 0 1px #ffffff0a;padding:12px;display:flex;flex-direction:column;gap:10px;animation:k-panel-in var(--t-fast) var(--ease-out)}.key-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:4px}.key-cell{height:var(--h-ctl);width:42px;font-family:var(--font-mono);font-size:12px;border-radius:var(--r-sm);color:var(--text-dim);transition:background var(--t-instant) var(--ease),color var(--t-instant)}.key-cell:hover{background:var(--hover);color:var(--text)}.key-cell.on{background:var(--accent);color:var(--on-accent);font-weight:700}.mode-seg{display:flex;border:1px solid var(--line-strong);border-radius:var(--r-md);overflow:hidden;height:var(--h-ctl)}.mode-seg .seg{flex:1;font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);transition:background var(--t-fast) var(--ease),color var(--t-fast)}.mode-seg .seg+.seg{border-left:1px solid var(--line)}.mode-seg .seg:hover{background:var(--hover);color:var(--text)}.mode-seg .seg.on{background:var(--accent);color:var(--on-accent)}.key-note{text-align:center}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#060509b8;display:grid;place-items:center;animation:fadeIn var(--t-base) var(--ease-out);padding:24px}.modal-backdrop.light{place-items:start center;padding-top:14vh}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--surface-1);border:1px solid var(--line-strong);border-radius:var(--r-lg);box-shadow:0 24px 60px #0009,inset 0 1px #ffffff0d;padding:22px 24px;max-width:700px;width:100%;max-height:82vh;overflow-y:auto;animation:k-panel-in var(--t-base) var(--ease-out);scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.modal-title{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.01em;margin-bottom:16px}.mood-led{display:inline-block;width:9px;height:9px;border-radius:2.5px;box-shadow:0 0 8px -1px currentColor,inset 0 1px #ffffff59}.mood-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:9px}.mood-card{display:flex;flex-direction:column;align-items:flex-start;gap:8px;text-align:left;padding:14px;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease),transform var(--t-instant)}.mood-card:hover{border-color:var(--accent);background:var(--hover)}.mood-card:active{transform:translateY(1px)}.mood-label{font-size:15px;font-weight:700}.mood-blurb{font-size:11.5px;color:var(--text-dim);line-height:1.45;text-transform:lowercase}.mood-seed-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.mood-seed-head .modal-title{margin:0}.seed-list{display:flex;flex-direction:column;gap:8px}.seed-card{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 14px;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease)}.seed-card:hover{border-color:var(--line-strong)}.seed-card.previewing{border-color:var(--accent);box-shadow:0 0 14px -4px var(--accent-glow)}.seed-info{display:flex;flex-direction:column;gap:7px;min-width:0}.seed-key{font-family:var(--font-mono);font-size:9px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--text-faint)}.seed-chips{display:flex;flex-wrap:wrap;gap:5px}.seed-chip{font-size:14px;font-weight:500;padding:3px 9px;background:var(--surface-3);border:1px solid var(--line);border-radius:var(--r-sm)}.seed-actions{display:flex;gap:6px;flex-shrink:0}.save-row{display:flex;gap:8px;margin-bottom:16px}.save-row input{flex:1}.library-empty{color:var(--text-faint);text-align:center;padding:26px 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