@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');
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var(--line);border-radius:8px;overflow:hidden;background:#08090e;min-height:620px;display:flex;flex-direction:column}.canvas-head{position:absolute;top:0;left:0;width:100%;padding:15px 18px;display:flex;justify-content:space-between;z-index:2;pointer-events:none}.canvas-head>span{font-size:8px;letter-spacing:1.5px;color:#a0a0ac;padding-top:6px}.canvas-head b{font-weight:500}.canvas-head button{background:#12121bd9;color:#aaa4bb;border:1px solid #2b2736;border-radius:4px;padding:6px 9px;font-size:10px;pointer-events:auto}.canvas-head div{display:flex;gap:6px}#universe{display:block;width:100%;flex:1;min-height:500px;touch-action:none}.canvas-bottom{position:absolute;bottom:88px;left:18px;right:18px;display:flex;justify-content:space-between;font-size:9px;color:#777383;pointer-events:none}.transport{background:#13131bdc;border-top:1px solid var(--line);padding:16px;display:flex;align-items:center;gap:10px}.transport button{width:33px;height:34px;border:1px solid #38313f;border-radius:5px;background:#1c1924;color:#b7a9ca}.transport .play{background:#b89af1;color:#21142e;border:0;font-weight:bold}.speed{flex:1;padding:0 13px;max-width:320px}.speed label{font-size:8px;margin:0 0 8px;letter-spacing:1px;display:flex;justify-content:space-between;gap:12px}.speed label b{color:#bbb2cc;font-weight:400;letter-spacing:0}input[type=range]{width:100%;accent-color:#b89af1;height:4px;cursor:pointer;margin:8px 0}.elapsed{margin-left:auto;text-align:right;white-space:nowrap}.elapsed small{font-size:7px;letter-spacing:1px;color:#797381;display:block;margin-bottom:6px}.elapsed b{font-family:'Space Grotesk';font-weight:400;font-size:14px}.selected-name{display:flex;align-items:center;gap:12px;margin:5px 0 25px}.selected-name>span{font-size:28px;color:#6cceec}.selected-name h2{font:500 20px 'Space Grotesk';margin:0 0 4px}.selected-name small{font-size:8px;color:#797483;letter-spacing:1px}.input-row{display:flex;gap:10px}.input-row>div{width:50%}.danger{border:0;background:none;color:#b28591;font-size:10px;width:100%;padding:15px 0 0}.diagnostic{display:flex;justify-content:space-between;font-size:11px;color:#8e879c;margin:16px 0}.diagnostic b{color:#c0b9cc;font-weight:400;font-variant-numeric:tabular-nums}.status-note{font-size:9px;line-height:1.7;color:#8f81a6;border-top:1px solid var(--line);padding-top:16px;margin-top:19px}.footnote{display:flex;justify-content:space-between;color:#666170;font-size:9px;margin:15px 0;gap:15px}.footnote i{background:#b49ad6;width:4px;height:4px}footer{border-top:1px solid #202029;padding:22px 3%;display:flex;justify-content:space-between;color:#77717f;font-size:10px;letter-spacing:1px}footer small{font-size:8px;color:#514d59}.bh-layout{display:grid;grid-template-columns:270px 1fr;gap:20px}.bh-main{min-width:0}.mass-panel{align-self:start}.mass-panel label{line-height:1.8}.mass-panel label span{float:none;display:block;font-size:8px}.mass-description{font:22px 'Space Grotesk';color:#d9c4f9;margin:24px 0}.preset-stack{display:grid;gap:9px}.preset-stack button{background:#18151f;border:1px solid #332b40;color:#c5b4de;text-align:left;border-radius:5px;padding:12px;font-size:12px}.preset-stack small{display:block;color:#796e8d;margin-top:6px;font-size:10px}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metrics article{padding:19px 17px;background:var(--panel);border:1px solid var(--line);border-radius:7px}.metrics label{font-size:8px;margin:0 0 18px;letter-spacing:.8px}.metrics b{display:block;font:500 clamp(16px,1.7vw,25px) 'Space Grotesk';color:#ded0f6;margin-bottom:13px}.metrics small{color:#736c80;font-size:10px}.size-panel,.chart-panel{margin-top:18px}#sizes{width:100%;height:160px;display:block}#bhChart{width:100%;height:210px;display:block}.chart-legend{display:flex;gap:22px;font-size:10px;margin-top:-5px;margin-bottom:12px}.science-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.science-grid h2{font:500 20px 'Space Grotesk';margin:0 0 24px}.science-grid p{color:#a29baa;font-size:13px;line-height:1.9}.science-grid .formula{background:#1b1724;padding:16px;color:#d1b7f4;overflow-wrap:anywhere}.sources{padding-left:17px;line-height:2.6}.sources a{color:#c5ace5;text-decoration:none;font-size:12px}.simulation:fullscreen{background:#08090e;width:100%;height:100%;border:0;border-radius:0}.simulation:fullscreen canvas{height:calc(100vh - 80px)}@media(min-width:1550px){.simulation{min-height:690px}#universe{min-height:600px}}@media(max-width:1150px){.header-note{display:none}.workspace{grid-template-columns:185px minmax(280px,1fr) 210px;gap:10px}.panel{padding:15px}.badge{display:none}.metrics{grid-template-columns:1fr 1fr}.speed{padding:0 2px}.elapsed b{font-size:11px}.canvas-bottom{font-size:8px}.bh-layout{grid-template-columns:240px 1fr}}@media(max-width:850px){header{flex-wrap:wrap;gap:10px;padding-top:16px}.brand{font-size:19px}nav{order:2;min-height:48px;width:100%;justify-content:center;gap:10px}.tab{font-size:11px}main{padding-top:25px}.workspace{grid-template-columns:1fr 1fr}.simulation{grid-column:1/-1;grid-row:1;min-height:490px}#universe{min-height:410px}.panel{padding:18px}.page-heading{margin-bottom:22px}.footnote{flex-wrap:wrap}.bh-layout{grid-template-columns:1fr}.mass-panel{display:block}.preset-stack{grid-template-columns:repeat(3,1fr)}.mass-description{margin:15px 0}.science-grid{grid-template-columns:1fr}footer{gap:20px}footer>span:last-child{display:none}}@media(max-width:450px){.workspace{gap:10px}.panel{padding:13px}.panel-heading{font-size:12px}.type-picks{gap:4px}.type-picks small{font-size:8px}.type-picks button{font-size:17px}.metrics{gap:8px}.metrics article{padding:15px 12px}.metrics b{font-size:19px}.metrics label{font-size:7px}.elapsed{display:none}.preset-stack{grid-template-columns:1fr 1fr}.chart-legend{gap:10px;font-size:8px}#pointerHint{display:none}.badge{display:none}h1{font-size:26px}.page-heading p{font-size:12px}.selected-name h2{font-size:17px}footer small{display:none}}


.model-warning{margin:0 0 16px;color:#e2c49c;border-color:#6a503c;background:#211b16}.model-warning[hidden]{display:none}.metrics b{overflow-wrap:anywhere}.metrics label{line-height:1.6}
@media(max-width:600px){.workspace{grid-template-columns:1fr}.simulation{grid-column:1;min-height:480px}.inspector .input-row{flex-direction:column}.inspector .input-row>div{width:100%}button,input[type=number],select{min-height:44px}input[type=number],select{font-size:16px}.canvas-head{padding:10px}.canvas-head>span{font-size:7px}.canvas-head button{min-width:40px}.canvas-head>span{max-width:90px;line-height:1.7}.transport button{min-width:44px;min-height:44px}.metrics{grid-template-columns:1fr 1fr}.chart-legend{flex-wrap:wrap}input[type=range]{height:24px}.type-picks button{min-height:65px}}


.instruments,.instrument-controls{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}summary{cursor:pointer;color:#c8b7df;font-size:12px;line-height:1.6}.instruments .diagnostic{display:block}.instruments .diagnostic b{display:block;overflow-wrap:anywhere;margin-top:6px}.instruments .hint{overflow-wrap:anywhere}@media(max-width:600px){summary{min-height:44px;padding:10px 0}}
.extreme-stage{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px}.object-stage{position:relative;min-width:0;border:1px solid #302a38;border-radius:9px;overflow:hidden;background:#06070d;align-self:start}.object-stage canvas{width:100%;height:500px;display:block}.stage-caption{position:absolute;top:20px;left:20px;right:20px;display:flex;justify-content:space-between;gap:20px;pointer-events:none;color:#a399b0;font-size:8px;letter-spacing:1.2px}.stage-caption span:last-child{color:#5e566c}.stage-foot{padding:12px 20px;border-top:1px solid #25212e;color:#81768f;font-size:10px;line-height:1.6}.extreme-controls label{margin-top:16px}.extreme-presets{display:flex;gap:6px;margin-top:9px}.extreme-presets button{flex:1;background:#211b2b;color:#c9b2e2;border:1px solid #3b304a;border-radius:5px;padding:9px 2px;font-size:10px}.extreme-controls-row{display:grid;grid-template-columns:1fr 1fr;align-items:end;gap:8px}.extreme-controls-row select{font-size:10px}.error-note{font-size:11px;color:#e5a995;line-height:1.6;min-height:0}.error-note:empty{display:none}.extreme-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.extreme-metrics article{background:#111019;border:1px solid #2b2635;border-radius:7px;padding:18px}.extreme-metrics label{font-size:8px;margin:0 0 13px}.extreme-metrics b{font:500 23px 'Space Grotesk';color:#ddd0f4;overflow-wrap:anywhere}.extreme-section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:38px 0 20px}.extreme-section-heading h2{font:500 25px 'Space Grotesk';margin:0;letter-spacing:-.5px}.extreme-section-heading label{margin:0}.extreme-section-heading select{margin-top:8px}.object-comparison{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.extreme-comparison-card{background:#101117;border:1px solid #2d2835;padding:20px;border-radius:8px;min-width:0}.extreme-comparison-card h3{font:500 17px 'Space Grotesk';margin:0 0 14px}.extreme-comparison-card p{color:#bfb4ce;font-size:12px;line-height:1.8;overflow-wrap:anywhere}.extreme-comparison-card .hint{font-size:10px;color:#81768f}.size-track{height:4px;background:#282432;margin:20px 0}.size-track span{height:100%;display:block}.thermal-lab{border-top:1px solid #28212f;margin-top:36px}.thermal-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:30px;background:#111019;border:1px solid #302638;border-radius:9px;padding:27px}.thermal-readouts{display:flex;align-items:baseline;flex-wrap:wrap;gap:18px;margin:2px 0 25px}.thermal-readouts b{font:500 clamp(24px,3.2vw,42px) 'Space Grotesk';color:#dbb7ff}.thermal-readouts span{font:18px 'Space Grotesk';color:#ac9dbb}.temperature-axis{display:flex;justify-content:space-between;color:#81728d;font-size:9px;margin:10px 0 18px}.thermal-inputs{display:grid;grid-template-columns:1fr 1fr;gap:14px}.temperature-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:19px}.temperature-presets button{background:#1c1726;border:1px solid #393044;border-radius:5px;color:#d9c0ef;padding:12px 5px;font-size:12px}.temperature-presets small{display:block;font-size:8px;color:#8b7e9c;margin-top:6px;line-height:1.5}.thermal-art canvas{width:100%;height:210px;border:1px solid #2b2434;border-radius:7px;display:block}.thermal-art p,.extreme-sources p{color:#8f839e;font-size:11px;line-height:1.9}.extreme-sources{margin-top:26px;border:1px solid #2b2534;border-radius:7px;padding:18px}.extreme-sources a{color:#c2a8df;font-size:11px;line-height:2.2}.extreme-controls button:disabled{opacity:.45}.extreme-controls .check{font-size:11px}#extreme .info-box{margin-top:16px}@media(max-width:1150px){header{gap:10px}nav{gap:8px}.tab{font-size:11px;padding:0 6px}.thermal-layout{grid-template-columns:1fr}.thermal-art canvas{height:150px}.extreme-stage{grid-template-columns:minmax(0,1fr) 260px}.object-stage canvas{height:470px}.temperature-presets{grid-template-columns:repeat(4,1fr)}}@media(max-width:700px){.extreme-stage{grid-template-columns:1fr}.object-stage canvas{height:350px}.extreme-controls{display:block}.extreme-metrics{grid-template-columns:1fr 1fr}.extreme-metrics b{font-size:19px}.object-comparison{grid-template-columns:1fr}.extreme-section-heading{flex-wrap:wrap}.thermal-layout{padding:17px;gap:20px}.temperature-presets{grid-template-columns:1fr 1fr}.stage-caption{font-size:7px;left:12px;right:12px;top:12px}.stage-caption span:last-child{display:none}.temperature-axis{font-size:8px}.thermal-readouts span{font-size:16px}.thermal-inputs{grid-template-columns:1fr}.extreme-presets button{min-height:44px}.extreme-controls-row{grid-template-columns:1fr 1fr}.extreme-metrics label{line-height:1.6}.extreme-section-heading h2{font-size:24px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}