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ease}.drawer-toggle-btn:active{transform:scale(.95)}.drawer-toggle-btn.active.muted{background:var(--color-error);border-color:var(--color-error);color:var(--color-text)}.drawer-toggle-btn.active.soloed{background:var(--color-yellow);border-color:var(--color-yellow);color:var(--color-bg)}.drawer-mode-btn{padding:8px 14px;border:2px solid var(--color-border-hover);border-radius:6px;background:var(--color-surface-elevated);color:var(--color-text-muted);font-size:12px;font-weight:600;cursor:pointer;transition:all .15s ease}.drawer-mode-btn:active{transform:scale(.95)}.drawer-mode-btn:not(.gate){border-color:var(--color-text-dimmed);color:var(--color-text-muted)}.drawer-mode-btn.gate{border-color:var(--color-cyan);background:var(--color-cyan-muted);color:var(--color-cyan)}.drawer-slider-group{display:flex;align-items:center;gap:8px;flex:1}.drawer-volume-slider{flex:1;height:6px;-webkit-appearance:none;appearance:none;background:linear-gradient(to right,var(--color-border) 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#333)}.step-count-trigger:disabled{opacity:.5;cursor:not-allowed}.step-count-trigger.open{border-color:var(--color-cyan);background:var(--color-cyan-muted);color:var(--color-cyan)}.step-count-value{font-weight:500;min-width:24px;text-align:right}.step-count-chevron{font-size:10px;opacity:.7}.step-count-menu{background:var(--color-surface-elevated, #2a2a2a);border:1px solid var(--color-border, #444);border-radius:8px;box-shadow:0 8px 24px #0006;min-width:160px;max-height:320px;overflow-y:auto;z-index:10000;animation:dropdown-appear .15s ease-out}@keyframes dropdown-appear{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.category-header{display:flex;align-items:center;padding:8px 12px 4px;color:var(--color-text-muted, #888);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.category-label{flex:1}.category-options{padding-bottom:4px}.step-option{display:flex;align-items:center;gap:8px;width:100%;padding:6px 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#0006;min-width:140px;max-height:320px;overflow-y:auto;z-index:10000;animation:transpose-dropdown-appear .15s ease-out}@keyframes transpose-dropdown-appear{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.transpose-menu .category-header{display:flex;align-items:center;padding:8px 12px 4px;color:var(--color-text-muted, #888);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.transpose-menu .category-label{flex:1}.transpose-menu .category-options{padding-bottom:4px}.transpose-option{display:flex;align-items:center;gap:8px;width:100%;padding:6px 12px;background:transparent;border:none;color:var(--color-text, #fff);font-size:13px;cursor:pointer;transition:background .1s;text-align:left}.transpose-option:hover{background:var(--color-surface-hover, #333)}.transpose-option.selected{background:var(--color-accent-muted, rgba(255, 107, 53, .15))}.transpose-option .option-value{font-weight:600;font-family:monospace;min-width:32px;text-align:right}.transpose-option .option-label{flex:1;color:var(--color-text-muted, #888);font-size:12px}.transpose-option .option-check{color:var(--color-accent, #ff6b35);font-size:12px}.transpose-menu::-webkit-scrollbar{width:6px}.transpose-menu::-webkit-scrollbar-track{background:transparent}.transpose-menu::-webkit-scrollbar-thumb{background:var(--color-border, #444);border-radius:3px}.transpose-menu::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted, #666)}@media(prefers-reduced-motion:reduce){.transpose-menu{animation:none}}.track-row-wrapper{display:flex;flex-direction:column;transition:transform .15s ease-out,opacity .15s ease-out}.track-row-wrapper.drag-target{background:var(--color-accent-muted);border:2px solid 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#0003}.track-drag-handle{grid-column:drag}.track-name,.track-name-input{grid-column:name}.mute-button{grid-column:mute}.solo-button{grid-column:solo}.expand-toggle{grid-column:pitch-view}.velocity-toggle{grid-column:velocity}.pattern-tools-toggle{grid-column:tools}.track-pitch-step-group{grid-column:transpose / span 3}.track-drag-handle{display:flex;align-items:center;justify-content:center;width:20px;height:36px;color:var(--color-text-muted);opacity:.4;cursor:grab;transition:opacity .15s ease,color .15s ease;-webkit-user-select:none;user-select:none;font-size:12px;letter-spacing:-1px}.track-drag-handle:hover{opacity:.8;color:var(--color-text)}.track-drag-handle:active{cursor:grabbing;opacity:1;color:var(--color-accent)}.track-right{display:flex;align-items:center;padding-left:8px;padding-right:12px;position:sticky;right:0;z-index:3;background:var(--color-surface);box-shadow:-4px 0 8px -4px #0003}@media(max-width:768px){.track-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 0;border-bottom:1px solid var(--color-surface-elevated)}.transpose-control,.step-count-select,.track-actions{display:none}.mute-button,.solo-button{width:36px;height:36px;font-size:13px;flex-shrink:0}.track-name{flex:0 0 auto;min-width:60px;max-width:80px;padding:8px 4px;border-radius:4px;cursor:pointer;transition:background .1s ease}.track-name:active{background:var(--color-surface-hover)}.expand-toggle{flex-shrink:0;order:3}.expand-placeholder{display:none}.steps{flex:1;min-width:0;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:4px 0}.steps::-webkit-scrollbar{display:none}.track-row:after{content:"";position:absolute;right:8px;top:50%;transform:translateY(-50%);width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid var(--color-surface-active);opacity:0;transition:opacity 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