:root{--bg-a: #f5f1e6;--bg-b: #eee9dc;--surface-1: #fffdf7;--surface-2: #f8f4ea;--surface-3: #efeadc;--panel: var(--surface-1);--inverse: #2f3a36;--line-1: #ebe5d6;--line-2: #dcd5c3;--line-3: #c3bba5;--line: var(--line-2);--ink-hi: #ffffff;--ink: #2b302d;--ink-2: #454c48;--muted: #6b736e;--muted-2: #8e968f;--teal: #2f8a78;--teal-deep: #a3d3c6;--teal-tint: #e6f3ef;--green: #3f9a5c;--green-deep: #b5ddc1;--green-tint: #e8f5ec;--orange: #d0623a;--orange-deep: #f0c3ae;--orange-tint: #fdeee6;--amber: #c4862a;--amber-deep: #ead0a0;--amber-tint: #fff9ee;--yellow: #e9c95a;--red: #c4463d;--red-deep: #efb6b1;--red-tint: #fdecea;--blue: #3f6f9c;--blue-deep: #b7cde3;--blue-tint: #eaf1f8;--accent: var(--teal);--accent-strong: #22695b;--focus: var(--orange);--section: #1b2b26;--phrase: var(--teal);--word: #5a8f83;--syllable: var(--orange);--pitch: var(--amber);--shadow: 0 14px 28px rgba(70, 58, 30, .1);--font: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;color-scheme:light}*{box-sizing:border-box}body{margin:0;color:var(--ink);font-family:var(--font);background:radial-gradient(circle at top right,#fff5d2 0%,transparent 40%),linear-gradient(140deg,var(--bg-a),var(--bg-b))}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;padding:16px;animation:app-enter .22s ease}.card,.panel{border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow)}.auth-panel{max-width:520px;margin:12vh auto;padding:28px;text-align:center}.auth-title{margin:0;font-size:28px}.auth-subtitle{margin:10px 0 20px;color:var(--ink-2)}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:36px;padding:0 2px;margin-bottom:10px;min-width:0}.topbar-lead{display:flex;align-items:center;gap:10px;min-width:0}.topbar-home.MuiButton-root,.topbar-signout.MuiButton-root{min-height:0;padding:2px 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rgba(0,0,0,.08)!important;position:sticky!important;top:0;z-index:100;overflow:visible}.daw-transport-inner{min-height:40px;flex-wrap:nowrap;overflow:visible}.daw-preview-source .MuiToggleButton-root{min-width:38px;min-height:30px;padding:3px 7px;font-size:10px;font-weight:750;text-transform:none}.daw-preview-scope{width:108px}.daw-preview-scope .MuiInputBase-root{height:30px;font-size:11px}.daw-preview-primary{background:var(--amber)!important;color:#172019!important}.daw-mixer-disclosure{position:relative;flex:0 0 auto}.daw-mixer-disclosure>summary{min-height:30px;padding:6px 8px;border:1px solid var(--line-2);border-radius:8px;color:var(--ink-2);cursor:pointer;font-size:10px;font-weight:750;list-style-position:inside;white-space:nowrap}.daw-mixer-body{position:absolute;top:calc(100% + 8px);right:0;z-index:150;display:grid;width:300px;gap:10px;padding:12px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface-1);box-shadow:0 14px 34px #463a1e29,0 0 0 1px #fff9 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.MuiInputBase-root,.timeline-toolbar-edit .MuiChip-root{min-height:32px}.timeline-toolbar-edit .MuiInputBase-root{height:32px}.timeline-toolbar-edit .MuiInputLabel-root:not(.MuiInputLabel-shrink){transform:translate(14px,6px) scale(1)}.draw-destination-chip{max-width:190px}.draw-destination-chip .MuiChip-label{overflow:hidden;text-overflow:ellipsis}.timeline-mode-controls .MuiToggleButton-root{min-height:32px;padding:4px 10px;text-transform:none}.timeline-zoom-control{width:min(230px,24vw);min-width:150px;margin-left:auto}.timeline-zoom-control .timeline-zoom-slider{flex:1}.playback-settings-disclosure{position:relative;z-index:45;flex:0 0 auto;border:1px solid var(--line-2);border-radius:8px;background:var(--surface-1)}.playback-settings-disclosure>summary{box-sizing:border-box;min-height:30px;padding:5px 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var(--line-2);background:var(--surface-2);color:var(--ink)}.song-pill.published{border-color:var(--teal);background:var(--surface-2);color:var(--ink-2)}.song-pill.draft{border-color:var(--orange-deep);background:var(--orange-tint);color:var(--orange)}.song-pill.scope{border-color:var(--blue-deep);background:var(--surface-2);color:var(--ink-2)}.detail-header-actions{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:8px;min-width:0}.detail-header-actions>*{min-width:0}.detail-header-actions .primary-btn,.detail-header-actions .secondary-btn{white-space:nowrap}.more-menu{position:relative}.more-menu-popover{position:absolute;top:calc(100% + 6px);right:0;z-index:20;min-width:160px;border:1px solid var(--line-2);border-radius:10px;background:var(--amber-tint);box-shadow:var(--shadow);padding:6px}.more-menu-popover .btn{width:100%;justify-content:flex-start}.detail-tabs-wrap{padding:0 8px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface-1);gap:8px;min-height:38px}.detail-tabs-wrap .MuiTabs-root{min-height:36px}.detail-tabs-wrap .MuiTab-root{min-height:36px;padding:6px 12px;font-size:13px;text-transform:none}.detail-tabs-wrap .MuiButton-root{padding-top:2px;padding-bottom:2px}.detail-tabs{display:flex;gap:6px;flex-wrap:wrap}.detail-tab.active{border-color:var(--teal);background:linear-gradient(145deg,var(--accent),var(--accent-strong));color:var(--ink-hi)}.detail-panel{padding:12px;display:grid;gap:10px}.detail-panel h3{margin:0;font-size:18px}.detail-panel.comparison-panel-wrap{padding:0;background:transparent;box-shadow:none}.comparison-panel{max-width:1200px;margin:0 auto}.metadata-form-grid{display:grid;grid-template-columns:repeat(2,minmax(180px,1fr));gap:10px}.metadata-form-grid label,.release-controls label{display:grid;gap:6px;font-size:12px;color:var(--ink-2)}.metadata-form-grid input,.release-controls select{width:100%;border:1px solid var(--line-3);border-radius:8px;background:var(--amber-tint);padding:8px}.release-controls{display:grid;gap:10px;max-width:420px}.detail-header-actions.is-busy,.action-bar.is-busy,.release-controls.is-busy,.danger-zone.is-busy,.history-panel.is-busy{opacity:.68}.danger-zone{border:1px solid var(--orange-deep);border-radius:10px;background:var(--orange-tint);padding:10px;display:grid;gap:8px;max-width:520px}.danger-zone h4{margin:0;font-size:14px;color:var(--orange)}.danger-zone p{margin:0;font-size:12px;color:var(--orange)}.history-panel{border:1px solid var(--line-2);border-radius:10px;background:var(--surface-1);padding:12px;display:grid;gap:10px;max-width:720px}.history-panel h4{margin:0;font-size:14px;color:var(--ink)}.history-panel-header{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}.history-panel-summary,.history-item-pills{display:flex;flex-wrap:wrap;gap:8px}.history-list{display:grid;gap:8px}.history-item{display:flex;justify-content:space-between;gap:12px;align-items:start;border:1px solid var(--line-2);border-radius:10px;background:var(--amber-tint);padding:10px}.history-item.current{border-color:var(--green);background:var(--surface-1)}.history-item-copy{min-width:0}.history-item-title{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.history-pill{display:inline-flex;align-items:center;border-radius:999px;border:1px solid var(--line-2);background:var(--amber-tint);color:var(--ink-2);font-size:11px;font-weight:600;padding:4px 8px}.history-pill.current{border-color:var(--green);background:var(--surface-2);color:var(--ink-2)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#1a27204d;display:grid;place-items:center;padding:16px}.duplicate-modal{width:min(460px,100%);padding:14px;display:grid;gap:10px}.duplicate-modal h3{margin:0}.duplicate-modal p{margin:0;font-size:13px;color:var(--ink-2)}.duplicate-modal label{display:grid;gap:6px;font-size:12px;color:var(--ink-2)}.duplicate-modal input{width:100%;border:1px solid var(--line-3);border-radius:8px;background:var(--amber-tint);padding:8px}.move-selection-modal{width:min(520px,100%);padding:14px;display:grid;gap:10px}.move-selection-modal h3{margin:0}.move-selection-modal p{margin:0;font-size:13px;color:var(--ink-2)}.move-selection-modal label{display:grid;gap:6px;font-size:12px;color:var(--ink-2)}.move-selection-modal input,.move-selection-modal select{width:100%;border:1px solid var(--line-3);border-radius:8px;background:var(--amber-tint);padding:8px}.move-selection-meta{padding:8px 10px;border-radius:10px;background:var(--surface-2);border:1px solid var(--blue-tint);color:var(--ink-2)}.move-new-section-fields{display:grid;gap:8px}.workspace-grid{position:relative;display:flex;gap:0;align-items:stretch;min-height:520px;overflow:hidden}.canvas-pane{flex:1;min-width:0}.inspector-pane{display:flex;flex-direction:column;gap:10px;position:fixed;top:0;right:0;width:360px;z-index:1200;height:100vh;max-height:100vh;overflow:hidden;padding:12px;background:var(--panel);box-shadow:-10px 0 30px #00000026;transition:transform .3s cubic-bezier(.4,0,.2,1);border-radius:0;border-left:1px solid var(--line)}.inspector-pane.collapsed{transform:translate(100%);pointer-events:none;box-shadow:none}.inspector-pane.collapsed .pane-head{display:none}.inspector-pane-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:2px solid var(--line);margin-bottom:4px}.inspector-pane-head .pane-title{margin:0;font-size:18px;color:var(--ink)}.control-group.compact{margin:0;padding:8px}.inspector-tabs-wrap{border:1px solid var(--line-2);border-radius:10px;background:var(--surface-1);padding:4px}.inspector-tabs{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.inspector-tab{min-height:30px;padding:5px 10px;font-size:12px}.inspector-tab.active{border-color:var(--teal);background:linear-gradient(145deg,var(--accent),var(--accent-strong));color:var(--ink-hi)}.inspector-body{flex:1;min-height:220px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;padding-right:2px;min-width:0}.inspector-panel{margin:0}.song-list{margin:0;padding:0;list-style:none;flex:1;min-height:0;overflow-y:auto}.song-row{width:100%;border:1px solid var(--line-2);background:var(--surface-1);border-radius:10px;padding:10px;text-align:left;margin-bottom:8px;min-width:0;overflow:hidden}.song-row.selected{border-color:var(--teal);background:var(--surface-2)}.song-row strong,.song-row small{display:block;color:var(--muted);margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-row strong{color:var(--ink);margin-top:0}.primary-btn,.secondary-btn,.danger-btn,.btn{border-radius:10px;border:1px solid var(--line-3);padding:8px 11px;min-height:36px;transition:transform .12s ease,opacity .12s ease}.primary-btn,.btn.primary{background:linear-gradient(145deg,var(--accent),var(--accent-strong));color:var(--ink-hi);border-color:var(--teal)}.secondary-btn,.btn{background:var(--surface-1);color:var(--ink)}.danger-btn{background:var(--red);color:var(--ink-hi);border-color:var(--red)}.btn.warning{background:var(--orange-tint);border-color:var(--orange-deep)}.primary-btn:disabled,.secondary-btn:disabled,.danger-btn:disabled,.btn:disabled{opacity:.55;cursor:not-allowed}.primary-btn:hover:not(:disabled),.secondary-btn:hover:not(:disabled),.danger-btn:hover:not(:disabled),.btn:hover:not(:disabled){transform:translateY(-1px)}.controls-grid{padding:10px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.control-group{border:1px solid var(--line-2);border-radius:10px;padding:10px;background:var(--surface-1)}.control-group h3{margin:0 0 8px;font-size:14px;color:var(--ink)}.control-group label,.control label{display:block;font-size:12px;margin-bottom:4px;color:var(--ink-2)}.control-group input,.control-group select,.control input,.control select{width:100%;border:1px solid var(--line-3);border-radius:8px;padding:8px;margin-bottom:8px;background:var(--amber-tint)}.controls-mini-grid{padding:0;display:block;min-width:0}.mini-control input[type=range]{width:100%}.action-row{display:flex;flex-wrap:wrap;gap:8px}.action-bar{padding:0;display:block;border-color:var(--line-2);background:linear-gradient(180deg,var(--amber-tint),var(--surface-1));min-width:0}.toolbar-actions{grid-area:actions;display:flex;flex-wrap:wrap;align-items:center;gap:8px;min-width:0}.toolbar-group{display:flex;flex-wrap:wrap;align-items:center;gap:8px;border:1px solid var(--line-2);border-radius:12px;background:var(--surface-1);padding:6px}.toolbar-group .btn{min-height:34px;padding:7px 12px}.toolbar-group-history,.toolbar-group-edit{background:var(--surface-1)}.toolbar-meta{grid-area:meta;display:flex;align-items:center;gap:8px;flex-wrap:wrap;min-width:0}.toolbar-song-title{margin-left:auto;font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:260px;padding:0 4px}.action-bar .spacer,.spacer{flex:1}.status-line{padding:10px 14px;color:var(--muted);font-size:13px}.status-line.validation-error{border:1px solid var(--orange);background:var(--orange-tint);color:var(--orange);display:grid;gap:4px}.status-line.validation-warning{border:1px solid var(--amber-deep);background:var(--amber-tint);color:var(--ink-2);display:grid;gap:4px}.status{margin:0;padding:8px 10px;border-radius:8px;background:var(--surface-2);color:var(--ink);border:1px solid var(--line-2);font-size:13px}.mutation-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:grid;place-items:center;padding:24px;background:#19211d42;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.mutation-overlay-card{width:min(360px,100%);border:1px solid rgba(13,93,93,.18);border-radius:16px;background:#fffdf7f5;box-shadow:0 20px 48px #18251f2e;padding:20px 18px;display:grid;justify-items:center;gap:10px;text-align:center}.mutation-overlay-card strong{font-size:17px;color:var(--ink)}.mutation-overlay-card p{margin:0;color:var(--ink-2);font-size:13px}.mutation-spinner{width:32px;height:32px;border-radius:999px;border:3px solid rgba(15,124,103,.18);border-top-color:var(--accent);animation:mutation-spin .7s linear infinite}@keyframes mutation-spin{to{transform:rotate(360deg)}}.scrubber-wrap{padding:12px 16px 14px;display:grid;gap:8px}.scrubber-row{display:grid;grid-template-columns:auto auto auto auto auto 1fr auto;gap:8px;align-items:center}.scrubber-row input[type=range]{width:100%}.scrubber-volume-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:center;padding:10px 12px;border:1px solid var(--line-2);border-radius:12px;background:linear-gradient(180deg,var(--surface-1),var(--surface-1))}.scrubber-volume-control{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:10px;align-items:center;min-width:0;font-size:12px;color:var(--ink-2)}.scrubber-volume-control input[type=range]{width:100%}.scrubber-volume-label{font-weight:700;color:var(--ink)}.scrubber-volume-value{font-variant-numeric:tabular-nums;min-width:44px;text-align:right;color:var(--ink-2)}.metronome-toggle-btn.active{border-color:var(--teal);background:linear-gradient(145deg,var(--accent),var(--accent-strong));color:var(--ink-hi)}.metronome-bpm-pill{border-radius:999px;padding:6px 12px;font-size:12px;line-height:1;border:1px solid var(--line-2);background:var(--surface-1);color:var(--ink-2);white-space:nowrap}.time-readout{font-variant-numeric:tabular-nums;min-width:180px;text-align:right}.audio-player{width:100%}.state-pill{border-radius:999px;padding:6px 12px;font-size:13px;border:1px solid var(--line-2);background:var(--surface-2)}.state-pill.dirty{border-color:var(--orange-deep);background:var(--orange-tint)}.state-pill.selection-pill{border-color:var(--teal);background:var(--surface-2);color:var(--ink-2)}.timeline-panel{overflow:hidden;position:relative}.canvas-timeline{padding-bottom:0}.grid-preview-controls{display:none!important;position:absolute;top:auto;bottom:5px;left:144px;z-index:40;display:flex;min-height:38px;align-items:center;gap:5px;padding:4px 5px 4px 9px;border:1px solid rgba(238,190,91,.7);border-radius:10px!important;background:#181d1be6!important;color:var(--ink-hi);box-shadow:0 7px 18px 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