:root{--bg: #0b0f14;--bg-elev: #11171f;--bg-elev-2: #161e29;--border: #1e2a38;--text: #e5ecf3;--text-dim: #8a97a8;--accent: #ff4136;--accent-soft: rgba(255, 65, 54, .18);--header-h: 54px;--timeline-h: 72px;--panel-w: 320px;--font-sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: "DM Mono", ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;--font-display: "Syne", var(--font-sans)}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;width:100%;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:14px;line-height:1.45;overflow:hidden}body{display:flex;flex-direction:column}.noscript-banner{padding:16px;background:var(--accent);color:#fff;text-align:center;font-weight:600}header{flex:0 0 var(--header-h);display:flex;align-items:center;gap:14px;padding:0 16px;background:var(--bg-elev);border-bottom:1px solid var(--border);z-index:5}.logo{font-family:var(--font-display);font-weight:800;font-size:20px;letter-spacing:.02em;user-select:none}.logo span{color:var(--accent)}.header-divider{width:1px;height:24px;background:var(--border)}.header-info{font-family:var(--font-mono);font-size:12px;color:var(--text-dim)}.header-info strong{color:var(--text);font-weight:500}.header-actions{margin-left:auto;display:flex;gap:8px}.btn{appearance:none;border:1px solid var(--border);background:var(--bg-elev-2);color:var(--text);font-family:var(--font-mono);font-size:12px;padding:7px 12px;border-radius:4px;cursor:pointer;transition:background .15s,border-color .15s}.btn:hover{background:#1c2632}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:#e63a30}.workspace{flex:1 1 auto;display:grid;grid-template-columns:1fr var(--panel-w);grid-template-rows:1fr var(--timeline-h);grid-template-areas:"viewport panel" "timeline panel";min-height:0;min-width:0}#viewport{grid-area:viewport;position:relative;background:var(--bg);overflow:hidden;min-height:0;min-width:0}#three-canvas{display:block;width:100%;height:100%}.status-panel{position:absolute;top:16px;right:16px;display:flex;flex-direction:column;align-items:flex-end;gap:4px;padding:10px 14px;background:#0b0f14bf;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:6px;z-index:8;pointer-events:none}.sp-title{font-family:var(--font-mono);font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim)}.sp-date{font-family:var(--font-display);font-size:18px;font-weight:700;color:var(--text);letter-spacing:.01em}.viewport-controls{position:absolute;top:16px;left:16px;display:flex;flex-direction:column;gap:6px;z-index:8}.view-switcher{display:flex;border:1px solid var(--border);border-radius:4px;overflow:hidden}.view-btn{appearance:none;border:none;border-right:1px solid var(--border);background:#0b0f14bf;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--text-dim);font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.08em;padding:6px 14px;cursor:pointer;transition:background .15s,color .15s}.view-btn:last-child{border-right:none}.view-btn:hover{color:var(--text);background:#1c2632e6}.view-btn.active{background:var(--accent);border-right-color:var(--accent);color:#fff}.view-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.drop-zone{position:absolute;inset:16px;border:1.5px dashed var(--border);border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--text-dim);background:#0b0f1459;backdrop-filter:blur(2px);cursor:pointer;pointer-events:auto;transition:border-color .15s,background .15s;user-select:none}.drop-zone:hover,.drop-zone:focus-visible{border-color:var(--accent);color:var(--text);outline:none}.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}.drop-zone h2{font-family:var(--font-display);font-weight:700;margin:0 0 6px;font-size:22px;color:var(--text)}.drop-zone p{margin:0;font-family:var(--font-mono);font-size:12px}.panel{grid-area:panel;background:var(--bg-elev);border-left:1px solid var(--border);display:flex;flex-direction:column;min-height:0}.panel-section{padding:14px 16px;border-bottom:1px solid var(--border)}.panel-section--grow{flex:1 1 auto;display:flex;flex-direction:column;min-height:0;padding-bottom:0}.panel-section--grow.collapsed{flex:0 0 auto}.task-seq-body{display:flex;flex-direction:column;flex:1 1 auto;min-height:0}.panel-section--grow.collapsed .task-seq-body{display:none}.panel-section-header{margin:0 0 10px;font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim)}.csv-import-area{display:flex}.csv-drop{flex:1 1 auto;border:1.5px dashed var(--border);border-radius:6px;padding:16px 12px;text-align:center;font-family:var(--font-mono);font-size:12px;color:var(--text-dim);cursor:pointer;transition:border-color .15s,background .15s,color .15s}.csv-drop:hover,.csv-drop:focus-visible{border-color:var(--accent);color:var(--text);outline:none}.csv-drop.drag-over{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}.task-list{list-style:none;margin:0;padding:0 0 14px;overflow-y:auto;flex:1 1 auto;min-height:0}.task-item{padding:10px 0;border-bottom:1px solid 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var(--accent);cursor:pointer}.tl-speed-slider:focus-visible{box-shadow:0 0 0 2px var(--accent);border-radius:2px}.timeline-bar{grid-area:timeline;background:var(--bg-elev);border-top:1px solid var(--border);border-right:1px solid var(--border);padding:10px 16px 14px;display:flex;flex-direction:column;gap:8px;min-width:0;transition:opacity .2s ease}.timeline-bar.tl-disabled{opacity:.3;pointer-events:none}.tl-top{display:flex;align-items:center;gap:12px}.tl-btn{appearance:none;border:1px solid var(--border);background:var(--bg-elev-2);color:var(--text);width:34px;height:34px;border-radius:50%;font-size:13px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s,border-color .15s}.tl-btn:hover{background:#1c2632;border-color:var(--accent)}.tl-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.tl-date{font-family:var(--font-mono);font-size:13px;color:var(--text)}.tl-track{position:relative;flex:0 0 8px;height:8px;background:var(--bg-elev-2);border-radius:4px;cursor:pointer;outline:none}.tl-track:focus-visible{box-shadow:0 0 0 2px var(--accent)}.tl-fill{position:absolute;top:0;left:0;bottom:0;width:0%;background:var(--accent);border-radius:4px;pointer-events:none}.tl-thumb{position:absolute;top:50%;left:0%;transform:translate(-50%,-50%);width:14px;height:14px;border-radius:50%;background:var(--text);border:2px solid var(--accent);pointer-events:none}.toast{position:fixed;left:50%;bottom:calc(var(--timeline-h) + 18px);transform:translate(-50%,12px);background:var(--bg-elev-2);border:1px solid var(--border);color:var(--text);font-family:var(--font-mono);font-size:12px;padding:8px 14px;border-radius:4px;opacity:0;pointer-events:none;transition:opacity .2s,transform 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