:root{color-scheme:light;--font-sans: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;--fs-xs: 11px;--fs-sm: 12.5px;--fs-md: 13.5px;--fs-lg: 15px;--fs-xl: 20px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--radius-sm: 5px;--radius-md: 8px;--radius-lg: 12px;--bg: #f3f5f8;--surface: #ffffff;--surface-2: #f7f9fb;--surface-3: #eef1f5;--border: #dde2e9;--border-strong: #c4ccd6;--text: #182029;--text-muted: #5c6977;--text-faint: #5b6776;--accent: #0e74c9;--accent-hover: #0b63ac;--accent-soft: rgba(14, 116, 201, .12);--accent-text: #ffffff;--select: #e8590c;--select-soft: rgba(232, 89, 12, .16);--success: #15803d;--warning: #b45309;--warning-soft: rgba(180, 83, 9, .12);--danger: #b91c1c;--danger-soft: rgba(185, 28, 28, .1);--info-soft: rgba(14, 116, 201, .08);--canvas-bg: #f8fafc;--grid-minor: rgba(24, 32, 41, .055);--grid-major: rgba(24, 32, 41, .14);--axis: rgba(24, 32, 41, .55);--body-fill: #1f2933;--body-stroke: #0b1220;--streamline: rgba(20, 28, 38, .62);--particle: rgba(255, 255, 255, .95);--vector: rgba(20, 28, 38, .7);--handle: #ffffff;--force: #c2185b;--shadow-1: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);--shadow-2: 0 8px 24px rgba(16, 24, 40, .14);--focus: 0 0 0 3px rgba(14, 116, 201, .35);--topbar-h: 48px;--left-w: 260px;--right-w: 320px;--bottom-h: 280px;--transition: .14s ease}:root[data-theme=dark]{color-scheme:dark;--bg: #0d1117;--surface: #151b23;--surface-2: #1b232d;--surface-3: #212b36;--border: #283240;--border-strong: #3a4656;--text: #e6ebf1;--text-muted: #9aa7b6;--text-faint: #8f9bab;--accent: #4ea6ff;--accent-hover: #74b9ff;--accent-soft: rgba(78, 166, 255, .16);--accent-text: #061220;--select: #ff8b3d;--select-soft: rgba(255, 139, 61, .2);--success: #3fb950;--warning: #f0b33c;--warning-soft: rgba(240, 179, 60, .14);--danger: #ff6b6b;--danger-soft: rgba(255, 107, 107, .14);--info-soft: rgba(78, 166, 255, .1);--canvas-bg: #0b0f14;--grid-minor: rgba(230, 235, 241, .05);--grid-major: rgba(230, 235, 241, .12);--axis: rgba(230, 235, 241, .5);--body-fill: #d7dde5;--body-stroke: #f2f5f8;--streamline: rgba(235, 240, 246, .6);--particle: rgba(255, 255, 255, .95);--vector: rgba(235, 240, 246, .7);--handle: #0d1117;--force: #ff5c9a;--shadow-1: 0 1px 2px rgba(0, 0, 0, .4), 0 1px 3px rgba(0, 0, 0, .5);--shadow-2: 0 8px 28px rgba(0, 0, 0, .55);--focus: 0 0 0 3px rgba(78, 166, 255, .4)}@media(prefers-reduced-motion:reduce){:root{--transition: 0ms}}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font-sans);font-size:var(--fs-md);line-height:1.45;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow:hidden}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;background:none;border:none;padding:0}:focus-visible{outline:none;box-shadow:var(--focus);border-radius:var(--radius-sm)}a{color:var(--accent)}code,.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right}.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:6px;border:2px solid transparent;background-clip:padding-box}::-webkit-scrollbar-track{background:transparent}.app{display:grid;grid-template-rows:var(--topbar-h) 1fr auto;grid-template-columns:minmax(0,1fr);height:100%;background:var(--bg);overflow:hidden}.app__main{display:grid;grid-template-columns:var(--left-w) 1fr var(--right-w);min-height:0;overflow:hidden}.app[data-left=closed] .app__main{grid-template-columns:0 1fr var(--right-w)}.app[data-right=closed] .app__main{grid-template-columns:var(--left-w) 1fr 0}.app[data-left=closed][data-right=closed] .app__main{grid-template-columns:0 1fr 0}.app__canvas{position:relative;min-width:0;min-height:0;background:var(--canvas-bg);overflow:hidden}@media(max-width:960px){.app__main{grid-template-columns:1fr!important;position:relative}.panel--left,.panel--right{position:absolute;top:0;bottom:0;z-index:20;width:min(320px,85vw);box-shadow:var(--shadow-2)}.panel--left{left:0}.panel--right{right:0}.app[data-left=closed] .panel--left,.app[data-right=closed] 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10px;border-radius:var(--radius-sm);font-size:var(--fs-xs);line-height:1.45;background:var(--info-soft);color:var(--text)}.callout--warning{background:var(--warning-soft)}.callout--danger{background:var(--danger-soft)}.callout svg{flex-shrink:0;margin-top:1px;color:var(--text-muted)}.callout--warning svg{color:var(--warning)}.callout--danger svg{color:var(--danger)}.link-btn{color:var(--accent);text-decoration:underline;text-underline-offset:2px;font-size:inherit}.muted{color:var(--text-muted)}.pill{display:inline-flex;align-items:center;gap:4px;padding:1px 7px;border-radius:999px;font-size:var(--fs-xs);background:var(--surface-3);color:var(--text-muted);font-family:var(--font-mono)}.pill--kutta{background:var(--accent-soft);color:var(--accent)}.bottom{position:relative;background:var(--surface);border-top:1px solid var(--border);display:flex;flex-direction:column;height:var(--bottom-h);min-height:0}.app[data-bottom=closed] .bottom{height:34px}.app[data-bottom=closed] 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80%,transparent);color:var(--text-muted);z-index:30;text-align:center;padding:24px}.boot-overlay--error{color:var(--text)}.boot-overlay h2{margin:0}.spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--border-strong);border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toasts{position:fixed;left:50%;bottom:18px;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:100;width:min(520px,90vw)}.toast{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-2);font-size:var(--fs-sm)}.toast--error{border-color:var(--danger)}.toast--warning{border-color:var(--warning)}.toast--success{border-color:var(--success)}.toast__icon{color:var(--text-muted);display:inline-flex}.toast--error .toast__icon{color:var(--danger)}.toast--warning .toast__icon{color:var(--warning)}.toast--success 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20px)}@media(max-width:1100px){.topbar__status .muted{display:none}}@media(max-width:960px){.topbar__name,.topbar__brand-text{display:none}.topbar{gap:4px;padding:0 6px}}@media(max-width:720px){.btn__label{display:none}.topbar__status-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.topbar .btn{padding:0 7px}.bottom__body{flex-direction:column}.side-list{width:auto!important;border-right:none;border-bottom:1px solid var(--border);flex-shrink:0}.bottom__body>div[style*=grid-template-columns]{grid-template-columns:1fr!important;overflow-y:auto}.chart{min-height:220px}.legend{width:180px}.probe{display:none}}.tree-row.is-selected .tree-row__sub{color:var(--text-muted)}.resize-handle{position:absolute;z-index:15;touch-action:none;background:transparent;transition:background var(--transition)}.resize-handle:after{content:"";position:absolute;background:transparent;transition:background var(--transition)}.resize-handle:hover:after,.resize-handle:focus-visible:after,body.is-resizing-x .resize-handle--left:after,body.is-resizing-x .resize-handle--right:after,body.is-resizing-y .resize-handle--bottom:after{background:var(--accent)}.resize-handle:focus-visible{box-shadow:none}.resize-handle--left,.resize-handle--right{top:0;bottom:0;width:7px;cursor:col-resize}.resize-handle--left{right:0}.resize-handle--right{left:0}.resize-handle--left:after,.resize-handle--right:after{top:0;bottom:0;width:3px}.resize-handle--left:after{right:0}.resize-handle--right:after{left:0}.resize-handle--bottom{left:0;right:0;top:0;height:7px;cursor:row-resize}.resize-handle--bottom:after{left:0;right:0;top:0;height:3px}body.is-resizing-x,body.is-resizing-x *{cursor:col-resize!important;user-select:none!important}body.is-resizing-y,body.is-resizing-y *{cursor:row-resize!important;user-select:none!important}@media(max-width:960px){.resize-handle--left,.resize-handle--right{display:none}}.status-badges{position:absolute;bottom:14px;left:50%;transform:translate(-50%);display:flex;flex-wrap:wrap;gap:6px;justify-content:center;max-width:55%;pointer-events:none;z-index:3}.badge{padding:3px 9px;border-radius:999px;font-size:var(--fs-xs);background:var(--surface);color:var(--text-muted);border:1px solid var(--border);box-shadow:0 1px 3px #0000001f}.badge--danger{color:var(--danger);background:linear-gradient(var(--danger-soft),var(--danger-soft)),var(--surface);border-color:var(--danger)}.badge--warning{color:var(--warning);background:linear-gradient(var(--warning-soft),var(--warning-soft)),var(--surface);border-color:var(--warning)}