:root{--fg:#1d2330;--muted:#556070;--line:#d9dee7;--bg:#ffffff;--soft:#f4f6fa;--accent:#1f4f9c;--warn-bg:#fff4d6;--warn-line:#d9a400;--warn-fg:#5a4300;--code:#eef1f6;--err-bg:#fde8e8;--err-line:#c0392b}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,system-ui,"Segoe UI",sans-serif}
a{color:var(--accent)}
.banner{background:var(--warn-bg);border-top:3px solid var(--warn-line);border-bottom:3px solid var(--warn-line);color:var(--warn-fg);text-align:center;padding:.7rem 1rem}
main{max-width:70rem;margin:0 auto;padding:1rem 1rem 4rem}
h1{font-size:1.7rem;line-height:1.3;margin:1.2rem 0 .4rem}
h2{font-size:1.3rem;margin:2.2rem 0 .6rem;padding-top:.6rem;border-top:1px solid var(--line)}
.lead{max-width:50rem}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:var(--code);padding:.05em .3em;border-radius:3px;overflow-wrap:anywhere}
.small{font-size:.9rem}.muted{color:var(--muted)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.box{background:var(--soft);border-left:4px solid var(--accent);padding:.6rem 1rem;margin:1rem 0;border-radius:0 6px 6px 0}
.box.warn{background:var(--warn-bg);border-left-color:var(--warn-line);color:var(--warn-fg)}
.box.err{background:var(--err-bg);border-left-color:var(--err-line)}
progress{width:100%;height:.9rem}
button,select,input{font:inherit}
button{background:var(--accent);color:#fff;border:1px solid var(--accent);border-radius:6px;padding:.45rem 1rem;cursor:pointer;min-height:2.5rem}
button.secondary,button.mini{background:#fff;color:var(--accent)}
button.mini{padding:.2rem .6rem;min-height:2rem;font-size:.85rem}
button:disabled{opacity:.5;cursor:not-allowed}
:focus-visible{outline:3px solid #ffbf47;outline-offset:2px}
select,input[type=number]{border:1px solid #8a94a6;border-radius:6px;padding:.3rem .4rem;min-height:2.25rem;background:#fff;color:var(--fg)}
.setup{display:grid;grid-template-columns:repeat(auto-fit,minmax(18rem,1fr));gap:1rem}
fieldset.models{border:1px solid var(--line);border-radius:6px;margin:0;padding:.5rem .8rem}
fieldset.models label{display:block;padding:.15rem 0}
.runlen select{max-width:100%}
.sliders{display:grid;grid-template-columns:repeat(auto-fit,minmax(19rem,1fr));gap:.9rem 1.5rem;margin:1rem 0}
.slider{border:1px solid var(--line);border-radius:6px;padding:.5rem .7rem}
.slider .top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.3rem}
.slider .name{font-weight:600}
.slider .tag{font-size:.75rem;border:1px solid var(--line);background:var(--code);border-radius:4px;padding:0 .35em;margin-left:.3em;font-weight:500;color:var(--muted)}
.slider .row{display:flex;align-items:center;gap:.5rem;margin-top:.3rem}
.slider .track{position:relative;flex:1;min-width:0}
.slider input[type=range]{width:100%;margin:.6rem 0 .9rem}
.slider .defmark{position:absolute;bottom:0;transform:translateX(-50%);font-size:.7rem;color:var(--muted);pointer-events:none;white-space:nowrap}
.slider .defmark::before{content:"";position:absolute;left:50%;bottom:100%;height:.45rem;border-left:2px solid var(--fg)}
.slider input[type=number]{width:6.2rem}
.slider .unit{font-size:.85rem;color:var(--muted)}
.slider .range{font-size:.78rem;color:var(--muted)}
.actions{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
.anim{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(16rem,1fr);gap:1.2rem;align-items:start}
.diagram{min-width:0}
#diagram{width:100%;height:auto;background:#fbfcfe;border:1px solid var(--line);border-radius:8px;display:block}
#diagram .node{cursor:pointer}
#diagram .node:focus-visible{outline:none}
#diagram .node:focus-visible .shape{stroke:#ffbf47;stroke-width:5}
#diagram text{font-family:system-ui,sans-serif;fill:var(--fg);pointer-events:none}
.player{display:flex;gap:.8rem;align-items:center;flex-wrap:wrap;margin-bottom:.5rem}
.inline{display:inline-flex;gap:.4rem;align-items:center}
#scrub{width:100%}
.timero{font-variant-numeric:tabular-nums;margin:.2rem 0 .6rem}
.pick{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}
.pick select{max-width:100%;min-width:0}.side{min-width:0}
.pick label{min-width:0;display:flex;flex-direction:column;font-size:.9rem}
.readout{display:grid;grid-template-columns:auto 1fr;gap:.2rem .8rem;margin:.8rem 0;font-variant-numeric:tabular-nums}
.readout dt{font-weight:600}.readout dd{margin:0}
.tablewrap{overflow-x:auto;margin:.6rem 0}
table{border-collapse:collapse;min-width:100%;font-size:.88rem}
th,td{border:1px solid var(--line);padding:.25rem .5rem;text-align:left}
th{background:var(--soft)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
caption{text-align:left}
.plots{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.plots figure{margin:0;border:1px solid var(--line);border-radius:8px;padding:.5rem}
.plots figcaption{font-weight:600;display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;justify-content:space-between}
.plots figcaption select{font-weight:400;font-size:.85rem;min-height:2rem}
.plots canvas{width:100%;height:260px;display:block;touch-action:pan-y}
.legend{display:flex;flex-wrap:wrap;gap:.2rem .9rem;font-size:.82rem;margin-top:.3rem}
.legend span{display:inline-flex;align-items:center;gap:.3rem}
.legend i{display:inline-block;width:1.6rem;height:0;border-top:3px solid}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));gap:.7rem}
.card{border:1px solid var(--line);border-radius:8px;padding:.5rem .8rem;background:var(--soft)}
.card .v{font-size:1.5rem;font-weight:700;font-variant-numeric:tabular-nums}
.card .l{font-size:.85rem;color:var(--muted)}
details{margin:.6rem 0}summary{cursor:pointer;font-weight:600}
@media (max-width:900px){.anim{grid-template-columns:minmax(0,1fr)}.plots{grid-template-columns:1fr}}
@media (max-width:600px){body{font-size:15px}main{padding:.6rem .7rem 3rem}h1{font-size:1.4rem}.sliders{grid-template-columns:1fr}.plots canvas{height:230px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}