:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--text);background:var(--page-bg);color-scheme:var(--color-scheme)}
*{box-sizing:border-box}body{margin:0;font-size:14px;line-height:1.5}button,input,select{font:inherit}button,select,input[type=range],input[type=checkbox]{cursor:pointer}button,a,input,select{touch-action:manipulation}button{color:inherit}a{color:inherit}button:disabled{opacity:.4;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,canvas:focus-visible{outline:2px solid var(--mint);outline-offset:3px}[hidden]{display:none!important}
.workspace{display:grid;grid-template-columns:290px minmax(0,1fr);max-width:1920px;margin:auto}.controls{padding:27px 22px;border-right:1px solid var(--border);background:var(--surface)}main{padding:28px 30px;min-width:0}.eyebrow{margin:0 0 10px;font-size:10px;font-weight:650;letter-spacing:1.7px;color:var(--muted)}h1{margin:0;font-size:30px;line-height:1.2;font-weight:600;letter-spacing:-.8px}h2{margin:0;font-size:13px;font-weight:600}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:18px}.page-heading .eyebrow{margin-bottom:6px}.intro{max-width:820px;margin:14px 0 20px;color:var(--muted);font-size:13px;line-height:1.7}.badge{border:1px solid var(--stable-border);background:var(--stable-bg);color:var(--stable);padding:5px 10px;border-radius:20px;font-size:11px;white-space:nowrap}
.dimension-control{display:flex;border:1px solid var(--border);border-radius:8px;background:var(--plot-bg);padding:4px;gap:4px;margin:15px 0 22px}.dimension-control button{flex:1;padding:8px 3px;background:transparent;border:0;border-radius:5px;font-size:13px;color:var(--muted)}.dimension-control .selected{background:var(--selected-bg);color:var(--text)}.field-label{display:block;font-size:12px;color:var(--muted);margin:0 0 8px}select,input[type=number]{background:var(--input-bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:8px 10px;min-width:0}#preset,#comparison-select{width:100%}#comparison-select{font-size:12px;margin-bottom:13px}.equations{font:14px/1.9 ui-monospace,SFMono-Regular,Consolas,monospace;margin:18px 0;color:var(--secondary)}.parameters{display:grid;gap:10px}.parameter{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--muted)}.parameter input{width:83px;padding:6px 8px;text-align:right}
.control-section{border-top:1px solid var(--border);margin-top:23px;padding-top:20px}.control-section h2{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-bottom:9px}.hint{font-size:11px;line-height:1.65;color:var(--muted);margin:8px 0 11px}.count{font-size:10px;font-weight:400;color:var(--muted);margin-left:auto}.color-dot{display:inline-block;flex:none;width:7px;height:7px;border-radius:50%;background:currentColor}.base-color{color:var(--mint)}.comparison-color{color:var(--violet)}.coordinate-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.coordinate-fields.three{grid-template-columns:repeat(3,minmax(0,1fr))}.coordinate-fields label{font-size:11px;color:var(--muted)}.coordinate-fields input{display:block;width:100%;margin-top:5px;padding:8px 6px;font-size:12px}.comparison-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:11px}.secondary-button{padding:8px 7px;border:1px solid var(--border-strong);border-radius:6px;background:transparent;color:var(--secondary);font-size:11px}.secondary-button:hover{background:var(--hover-bg)}.initial-vector{padding:10px 12px;border-radius:7px;background:var(--plot-bg);font:12px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--orange)}.initial-vector output{display:block;margin-top:5px;font-size:11px;overflow-wrap:anywhere}.time-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}.time-fields label{font-size:11px;color:var(--muted)}.time-fields input{display:block;width:100%;margin-top:6px}.view-options label{display:flex;align-items:center;gap:8px;margin-top:11px;font-size:12px;color:var(--secondary)}input[type=checkbox],input[type=range]{accent-color:var(--mint)}input[type=checkbox]{width:14px;height:14px;margin:0}.reset-button{width:100%;margin-top:20px}.error{color:var(--error);font-size:12px;line-height:1.6}.error:empty,.status:empty,.solver-status:empty{display:none}input[aria-invalid=true]{border-color:var(--error)}
.equation-strip{display:flex;flex-wrap:wrap;gap:14px 32px;padding:15px 19px;margin-bottom:20px;border:1px solid var(--border);border-radius:9px;background:var(--surface);color:var(--muted);font-size:11px}.equation-strip strong{display:block;margin-top:3px;font:16px Georgia,serif;color:var(--text)}.equation-strip .variation-label strong{color:var(--orange)}.panel{background:var(--panel);border:1px solid var(--border);border-radius:11px;min-width:0;overflow:hidden}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 18px}.portrait-panel>.panel-heading{border-bottom:1px solid var(--border)}.plot-actions{display:flex;gap:5px}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;padding:0;background:transparent;border:1px solid var(--border);border-radius:5px;font-size:21px;color:var(--secondary);flex:none}.icon-button:hover{background:var(--hover-bg)}#phase-canvas{display:block;width:100%;height:clamp(380px,48vh,540px);cursor:crosshair;touch-action:none}.plot-legend{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px 23px;font-size:11px;margin:12px 16px 0}.plot-legend span{display:flex;align-items:center;gap:6px}.plot-legend span:before{content:'';display:inline-block;width:15px;border-top:2px solid currentColor}.base-legend{color:var(--mint)}.comparison-legend{color:var(--violet)}.variation-legend{color:var(--orange)}.error-legend{color:var(--muted)}.plot-note{font-size:11px;color:var(--muted);margin:10px 18px 14px;line-height:1.65}.status{color:var(--orange)}.slice-controls{display:flex;align-items:center;flex-wrap:wrap;gap:12px 20px;padding:10px 18px;background:var(--surface);border-bottom:1px solid var(--border);font-size:12px;color:var(--secondary)}.slice-controls label{display:flex;align-items:center;gap:8px}.slice-controls input{width:76px;padding:5px 7px}.slice-controls select{padding:5px 7px}.slice-controls>span{color:var(--muted);margin-left:auto}
.playback{display:flex;align-items:center;gap:12px;padding:14px 18px;border-top:1px solid var(--border);background:var(--surface)}.play-button{border:0;border-radius:6px;background:var(--mint);color:var(--on-accent);padding:9px 13px;min-width:82px;font-size:12px;font-weight:600;flex:none}.playback output{font:12px ui-monospace,SFMono-Regular,Consolas,monospace;min-width:83px;white-space:nowrap}.playback input{flex:1;min-width:30px;margin:0}.playback select{padding:5px;font-size:12px}.text-button{border:0;background:transparent;color:var(--secondary);font-size:12px;white-space:nowrap;padding:7px 0}.bottom-panels{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,1fr);gap:18px;margin-top:18px}#growth-canvas{display:block;width:100%;height:215px}.plot-legend.small{font-size:10px;margin:6px 10px 18px;gap:10px 17px}.subtle{color:var(--muted);font-size:10px}.jacobian-label{margin:0 18px 12px;color:var(--muted);font-size:11px}.jacobian{display:grid;gap:5px;margin:0 22px 18px;padding:2px 10px;border-left:2px solid var(--border-strong);border-right:2px solid var(--border-strong);text-align:center;font:12px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--secondary)}.metrics{display:grid;gap:8px;margin:0 18px;font-size:11px}.metrics div{display:flex;justify-content:space-between;gap:12px}.metrics dt{color:var(--muted)}.metrics dd{margin:0;font:12px ui-monospace,SFMono-Regular,Consolas,monospace;font-variant-numeric:tabular-nums}.metrics div:nth-child(1) dd{color:var(--violet)}.metrics div:nth-child(2) dd{color:var(--orange)}footer{font-size:11px;color:var(--muted);line-height:1.7;margin-top:19px;max-width:900px}.solver-status{font-size:12px;color:var(--orange);line-height:1.7;margin:14px 0 0}
@media(max-width:1150px){.workspace{grid-template-columns:265px minmax(0,1fr)}.controls{padding:24px 18px}main{padding:24px 20px}.bottom-panels{grid-template-columns:minmax(0,1fr)}.equation-strip{gap:14px 24px}.playback{gap:8px}.playback output{font-size:11px;min-width:76px}}
@media(max-width:720px){.workspace{display:flex;flex-direction:column}.controls{border-right:0;border-bottom:1px solid var(--border);padding:24px 20px}.parameters{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.parameter{flex-wrap:wrap}.parameter input{width:100%}.controls .control-section{margin-top:20px}.coordinate-fields{gap:16px}.coordinate-fields input{font-size:14px}.comparison-actions{gap:12px}.secondary-button{font-size:12px}.view-options{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px}.view-options h2{grid-column:1/-1}.view-options label{margin-top:2px}.page-heading{align-items:flex-start}.page-heading .eyebrow{font-size:9px}h1{font-size:26px}main{padding:23px 14px}.equation-strip{padding:13px 15px;gap:15px}.equation-strip strong{font-size:15px}#phase-canvas{height:390px}.panel-heading{padding:13px 14px}.playback{flex-wrap:wrap;padding:12px 14px}.playback input{order:5;flex-basis:100%;margin-top:7px}.playback select{margin-left:auto}.playback .text-button{margin-left:4px}.play-button{min-width:73px}.plot-legend{font-size:10px;gap:8px 12px}.plot-note{margin-left:14px;margin-right:14px}.slice-controls{padding:10px 14px}.slice-controls>span{display:none}.subtle{font-size:9px}.app-name{font-size:18px}}

.lyapunov-summary{margin:0 0 20px;padding:13px 17px;border:1px solid var(--border);border-left:3px solid var(--violet);border-radius:8px;background:var(--surface)}.lyapunov-values{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 19px;font-size:12px}.lyapunov-values strong{color:var(--violet);font-weight:600}.lyapunov-summary[data-sign=positive]{border-left-color:var(--orange)}.lyapunov-summary[data-sign=positive] strong{color:var(--orange)}.lyapunov-summary[data-sign=negative]{border-left-color:var(--mint)}.lyapunov-summary[data-sign=negative] strong{color:var(--mint)}#lyapunov-largest{font:13px ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--text)}#lyapunov-spectrum{color:var(--muted);font-variant-numeric:tabular-nums}.lyapunov-summary p{margin:7px 0 0;font-size:12px;line-height:1.6;color:var(--muted)}

.stable-legend{color:#77c9ef}.unstable-legend{color:var(--orange)}html[data-theme=light] .stable-legend{color:#2479a4}.direction-note{border-left:2px solid var(--border-strong);padding-left:10px;margin-top:16px}#growth-variation-legend:before{border-top-style:dashed}