:root{--bg: #0f1117;--panel: #171a23;--panel2: #1d2130;--border: #2a2f3f;--text: #dbe0ee;--dim: #8b93a9;--accent: #56b4e9;--danger: #e06666;--control: #c2c8d6;--track-left: 250px;--track-right: 190px;--track-gap: 10px;--track-pad: 14px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:Hiragino Sans,Noto Sans JP,system-ui,sans-serif;font-size:13px;overflow:hidden}.app{display:flex;flex-direction:column;height:100%;min-width:1024px}.header{display:flex;align-items:center;gap:12px;padding:8px 14px;background:var(--panel);border-bottom:1px solid var(--border);position:relative;z-index:30}.header h1{font-size:15px;font-weight:600;margin:0}.spacer{flex:1}.mem-warn{color:#e6b800;font-size:12px;max-width:480px}.btn{background:var(--panel2);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:5px 12px;cursor:pointer;font-size:13px}.btn:hover:not(:disabled){border-color:var(--dim)}.btn:disabled{opacity:.4;cursor:default}.btn.active{border-color:var(--text);color:var(--text)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#0c0e14;font-weight:600;padding:8px 20px}.btn.tag{padding:3px 8px;font-size:12px;line-height:1.2}.btn.tag.active-m{background:var(--danger);border-color:var(--danger);color:#fff}.btn.tag.active-s{background:#e6b800;border-color:#e6b800;color:#0c0e14}.btn.tag.off{opacity:.35}.btn.tag.danger:hover{border-color:var(--danger);color:var(--danger)}.settings-panel{position:absolute;top:100%;right:10px;margin-top:6px;width:300px;background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:14px;display:flex;flex-direction:column;gap:12px;box-shadow:0 8px 24px #00000080}.set-row{display:grid;grid-template-columns:90px 1fr 56px;align-items:center;gap:8px;font-size:12px}.set-row input[type=range],.set-row select{min-width:0;width:100%}.set-row .val{text-align:right;color:var(--dim);white-space:nowrap}.set-row.check{grid-template-columns:1fr auto}.set-row.check input{justify-self:end;accent-color:var(--accent)}.set-row select{background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:4px;padding:3px 6px}.error-banner{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:6px 14px;background:#3a1d22;border-bottom:1px solid #5c2b33;color:#f0b8bf;font-size:12px}.main{flex:0 0 auto;display:flex;justify-content:center;align-items:stretch;min-height:0;background:var(--bg)}.panmap-box{position:relative;height:100%;min-width:0;flex-shrink:0}.map-edge{position:absolute;top:0;bottom:0;width:12px;cursor:ew-resize;z-index:2;touch-action:none}.map-edge-l{left:0}.map-edge-r{right:0}.map-edge:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:3px;height:44px;border-radius:2px;background:var(--border);transition:background .15s}.map-edge:hover:after{background:var(--dim)}.v-resizer{height:10px;flex-shrink:0;display:flex;align-items:center;justify-content:center;cursor:ns-resize;touch-action:none;background:var(--bg)}.v-resizer-grip{width:40px;height:3px;border-radius:2px;background:var(--border);transition:background .15s}.v-resizer:hover .v-resizer-grip{background:var(--dim)}.panmap{position:relative;width:100%;height:100%;min-height:0;min-width:0;background:var(--bg)}.panmap canvas{position:absolute;top:0;right:14px;bottom:14px;left:14px;width:calc(100% - 28px);height:calc(100% - 14px)}.legend{position:absolute;top:8px;right:8px;display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px;max-width:60%;z-index:3}.legend button{display:flex;align-items:center;gap:6px;background:#171a23d9;border:1px solid var(--border);color:var(--text);border-radius:12px;padding:3px 10px;cursor:pointer;font-size:12px}.legend button.off{opacity:.35}.dot{display:inline-block;width:10px;height:10px;border-radius:50%;flex-shrink:0}.transport{display:grid;grid-template-columns:var(--track-left) 1fr var(--track-right);align-items:center;gap:var(--track-gap);padding:8px var(--track-pad);background:var(--panel);border-top:1px solid var(--border)}.tp-left{display:flex;align-items:center;justify-content:flex-end;gap:6px;min-width:0}.tp-right{display:grid;grid-template-columns:20px 1fr 52px;align-items:center;gap:8px;min-width:0}.tp-btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:30px;padding:0}.seekbar{position:relative;width:100%;height:28px;cursor:pointer;touch-action:none}.seekbar.disabled{cursor:default;opacity:.4;pointer-events:none}.seekbar:before{content:"";position:absolute;top:50%;left:0;right:0;height:4px;margin-top:-2px;background:var(--panel2);border-radius:2px}.seek-fill{position:absolute;top:50%;left:0;height:4px;margin-top:-2px;background:var(--control);border-radius:2px;pointer-events:none}.seek-playhead{position:absolute;top:0;bottom:0;width:1px;background:#ffffffd9;pointer-events:none}.time{color:var(--dim);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:12px;margin-left:2px}.vol-icon{display:inline-flex;color:var(--dim);flex-shrink:0}.master-vol{flex:1;min-width:0}.db-label{color:var(--dim);font-size:11px;font-variant-numeric:tabular-nums;white-space:nowrap;text-align:right;width:52px;flex-shrink:0}input[type=range]{accent-color:var(--control)}.stemlist-wrap{display:flex;flex-direction:column;flex:1;border-top:1px solid var(--border);min-height:0}.stemlist-resizer{height:11px;flex-shrink:0;display:flex;align-items:center;justify-content:center;cursor:ns-resize;touch-action:none}.stemlist-resizer-grip{width:40px;height:3px;border-radius:2px;background:var(--border);transition:background .15s}.stemlist-resizer:hover .stemlist-resizer-grip{background:var(--dim)}.stemlist{display:flex;flex-direction:column;gap:3px;padding:0 0 8px;flex:1;overflow-y:auto}.stem-row{display:grid;grid-template-columns:var(--track-left) 1fr var(--track-right);align-items:center;gap:var(--track-gap);padding:4px var(--track-pad);border-radius:6px}.stem-row:hover{background:var(--panel)}.sr-left{display:grid;grid-template-columns:14px 20px minmax(0,1fr) 30px 30px;align-items:center;gap:8px;min-width:0}.sr-left .btn.tag{padding:3px 0;text-align:center}.sr-right{display:grid;grid-template-columns:20px 1fr 52px;align-items:center;gap:8px;min-width:0}.db-label{width:auto}.gain{min-width:0}.wave-lane{position:relative;height:40px;background:var(--panel2);border-radius:4px;overflow:hidden;cursor:pointer}.wave-canvas{display:block;width:100%;height:100%}.wave-playhead{position:absolute;top:0;bottom:0;width:1px;left:calc(var(--ph, 0) * 100%);background:#ffffffd9;pointer-events:none}.stem-row.dragging{opacity:.45}.drag-handle{color:var(--dim);cursor:grab;-webkit-user-select:none;user-select:none;text-align:center}.drag-handle:active{cursor:grabbing}.stem-name{background:transparent;border:1px solid transparent;border-radius:4px;color:var(--text);padding:3px 6px;font-size:13px;min-width:0}.stem-name:hover,.stem-name:focus{border-color:var(--border);background:var(--panel2);outline:none}.color-swatch{width:20px;height:20px;padding:0;border:none;background:none;cursor:pointer}.color-swatch::-webkit-color-swatch-wrapper{padding:0}.color-swatch::-webkit-color-swatch{border:1px solid var(--border);border-radius:50%}.color-swatch::-moz-color-swatch{border:1px solid var(--border);border-radius:50%}.gain-label{color:var(--dim);font-size:11px;text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.app-footer{margin-top:auto;flex-shrink:0;position:relative;z-index:60;display:flex;align-items:center;justify-content:center;gap:8px;padding:7px var(--track-pad);border-top:1px solid var(--border);background:var(--panel);font-size:12px;color:var(--dim);text-align:center}.footer-lead{color:var(--text);opacity:.85}.footer-lead-gap{width:20px}.footer-link{color:var(--dim);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--border)}.footer-link:hover{color:var(--text);text-decoration-color:var(--dim)}.footer-sep{color:var(--border)}.dropzone{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:flex;align-items:center;justify-content:center;background:#0f1117eb;overflow-y:auto;padding:32px 0}.dropzone.dragging{background:#0f1117cc;outline:2px dashed var(--accent);outline-offset:-14px}.dz-inner{text-align:center;pointer-events:auto;margin:auto}.dz-title{font-size:22px;font-weight:600;margin:0 0 8px}.dz-sub{color:var(--dim);margin:0 0 20px}.dz-actions{display:flex;gap:10px;justify-content:center}.dz-note{color:var(--dim);font-size:12px;margin:4px 0 0}.dz-note-privacy{margin-top:12px;opacity:.75}.dz-about{max-width:720px;margin:48px auto 0;padding:0 24px;color:var(--dim)}.dz-about h2{font-size:15px;font-weight:600;color:var(--fg);margin:0 0 8px}.dz-about-lead{font-size:13px;line-height:1.7;margin:0 0 20px}.dz-about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:left}.dz-about-grid h3{font-size:12.5px;font-weight:600;color:var(--fg);opacity:.85;margin:0 0 6px}.dz-about-grid p{font-size:12px;line-height:1.65;margin:0}@media (max-width: 640px){.dz-about-grid{grid-template-columns:1fr;text-align:center}}@media (max-width: 1023px){.app{min-width:0}}@media (max-width: 768px){@supports (height: 100dvh){html,body,#root{height:100dvh}}.mem-warn{font-size:11px;max-width:40vw}.transport{grid-template-columns:auto minmax(0,1fr);grid-template-areas:"left right" "seek seek";row-gap:2px}.tp-left{grid-area:left;justify-content:flex-start}.transport .seekbar{grid-area:seek}.tp-right{grid-area:right;grid-template-columns:20px minmax(0,1fr) 52px}.stem-row{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);grid-template-areas:"left right" "wave wave";row-gap:4px}.sr-left{grid-area:left;grid-template-columns:14px 20px minmax(0,1fr) 26px 26px;gap:5px}.stem-row .wave-lane{grid-area:wave;height:34px}.sr-right{grid-area:right;grid-template-columns:minmax(0,1fr) auto;gap:5px}.sr-right>span[aria-hidden]{display:none}.legend{gap:4px;max-width:70%}.legend button{font-size:11px;padding:2px 7px;gap:4px}.legend .dot{width:8px;height:8px}.map-edge{display:none}.settings-panel{left:10px;right:10px;width:auto}.dz-title{font-size:18px}.dz-actions{flex-wrap:wrap}.progress{max-width:80vw}}.progress{width:320px;height:6px;background:var(--panel2);border-radius:3px;margin:0 auto;overflow:hidden}.progress-fill{height:100%;background:var(--accent);transition:width .2s}