.lab-intro{max-width:790px}.lab-feature{display:grid;grid-template-columns:1.1fr 1fr;background:#101d33;border:1px solid #35445e;border-radius:10px;overflow:hidden}.lab-feature>div{padding:36px}.lab-feature figure{margin:0;align-self:center;padding:12px}.lab-feature svg{display:block;width:100%;height:auto}.lab-feature figcaption{text-align:center}.lab-laws a{color:#eac28a}.lab-laws .card .num{font-size:32px}.orbit-workbench{display:grid;grid-template-columns:290px minmax(0,1fr);gap:24px;align-items:start}.orbit-controls{padding:24px}.orbit-controls fieldset{border:0;padding:0;margin:0;min-width:0}.orbit-controls legend{font:25px Georgia,serif;margin-bottom:20px}.orbit-field{padding:14px 0;border-top:1px solid #35445e}.orbit-field label{font-size:13px}.orbit-field input[type=number],.orbit-field select{display:block;width:100%;min-width:0;padding:10px;background:#080f20;color:#eaf0fa;border:1px solid #687994;border-radius:5px;color-scheme:dark;margin-top:7px}.orbit-field input[type=range]{width:100%;padding:0;margin:13px 0 5px;accent-color:#eac28a;background:transparent;min-height:26px;border:0;cursor:pointer}.orbit-field .small{margin:5px 0 0}.orbit-ticks{display:flex;justify-content:space-between;color:#a4b2c9;font-size:10px}.orbit-check{display:flex;align-items:center;gap:10px;font-size:12px;margin:14px 0}.orbit-check input{width:17px;height:17px;margin:0;accent-color:#eac28a}.orbit-controls .btn{font-size:12px;padding:10px 12px}.orbit-stage{min-width:0}.orbit-figure{margin:0;border:1px solid #35445e;background:radial-gradient(ellipse at 52% 43%,#152743,#070d1a 75%);border-radius:10px;overflow:hidden}.orbit-figure svg{display:block;width:100%;height:auto}.orbit-figure figcaption{padding:12px 20px;background:#101d33;border-top:1px solid #35445e;font-size:11px}.orbit-legend{display:flex;gap:16px;flex-wrap:wrap;font-size:11px;color:#bccbe1;padding:16px 4px}.orbit-legend span{display:flex;align-items:center;gap:6px}.orbit-legend i{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--key)}.orbit-playback{padding:22px;border:1px solid #35445e;border-radius:8px;background:#101d33}.orbit-playback .actions{margin:0 0 16px}.orbit-playback label{font-size:12px}.orbit-playback input[type=range]{accent-color:#eac28a;width:100%;padding:0;border:0;min-height:30px;background:transparent}.orbit-rate-row{display:grid;grid-template-columns:1fr auto;align-items:end;gap:14px;margin-top:16px}.orbit-rate-row input{color-scheme:dark;font-size:14px}.orbit-rate-row .btn{padding:11px;font-size:11px}.orbit-clock-note{margin:10px 0 0;font-size:11px}.orbit-live{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:22px 0}.orbit-live>div{border-bottom:1px solid #35445e;padding-bottom:18px}.orbit-live strong{display:block;font:30px Georgia,serif;color:#ffd38b}.orbit-live span{font-size:12px;color:#b9c6da}.orbit-constants{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:26px}.orbit-constants>div{padding:22px 18px;border:1px solid #35445e;background:#101d33;border-radius:7px}.orbit-constants h3{font:14px system-ui,sans-serif;margin:0 0 12px;color:#c7d3e5}.orbit-constants strong{display:block;font:29px Georgia,serif;color:#ffd38b}.orbit-constants p{font-size:11px;margin-bottom:0}.orbit-message{min-height:1.7em;color:#ffd38b;font-size:13px}.orbit-equations{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.orbit-equation{padding:20px;border:1px solid #35445e;border-radius:7px}.orbit-equation code{font:16px/1.7 ui-monospace,monospace;color:#ffe0ad;overflow-wrap:anywhere}.orbit-equation p{font-size:13px}.orbit-sectors-note{font-size:13px;border-left:3px solid #81ccc5;padding:2px 16px;margin:16px 0}.orbit-sectors-note p{margin:6px 0}.orbit-experiments .card{display:flex;flex-direction:column}.orbit-experiments .actions{margin-top:auto}.orbit-experiments .btn{font-size:12px}.orbit-comparison{color:#ffd38b;font-size:15px;min-height:1.8em}.orbit-method{font-size:14px}.orbit-method p,.orbit-method li{color:#b9c6da}.orbit-method li{margin-bottom:12px}.orbit-invalid .orbit-figure,.orbit-invalid .orbit-live,.orbit-invalid .orbit-playback{opacity:.3;pointer-events:none}.orbit-invalid .orbit-figure figcaption::after{content:' Résultats précédents : corrigez les réglages.'}.orbit-share-fallback{margin-top:16px}.orbit-share-fallback input{font-size:12px}.orbit-svg-line{vector-effect:non-scaling-stroke}button:disabled{cursor:not-allowed;opacity:.45}
body.night .lab-feature,body.night .orbit-figure,body.night .orbit-playback,body.night .orbit-figure figcaption,body.night .orbit-constants>div,body.night .orbit-field select,body.night .orbit-field input{background:#21100e;border-color:#603124;color:#efa18c}body.night .orbit-figure svg,body.night .lab-feature svg{opacity:1;filter:grayscale(1) sepia(1) saturate(3)}body.night .orbit-message,body.night .orbit-live strong,body.night .orbit-constants strong,body.night .orbit-equation code{color:#efa18c}body.night .orbit-sectors-note{border-color:#b2634b}
@media(max-width:940px){.orbit-workbench{grid-template-columns:1fr}.orbit-controls fieldset{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.orbit-controls legend{grid-column:1/-1}.orbit-options{grid-column:1/-1}.orbit-stage{grid-row:1}.orbit-controls{padding:22px}.lab-feature{grid-template-columns:1fr}.lab-feature figure{max-width:700px;width:100%;margin:auto}.orbit-constants{gap:12px}.orbit-constants strong{font-size:24px}}
@media(max-width:560px){.orbit-controls fieldset{grid-template-columns:1fr}.orbit-live strong{font-size:26px}.orbit-constants,.orbit-equations{grid-template-columns:1fr}.orbit-constants>div{padding:18px}.orbit-rate-row{grid-template-columns:1fr}.orbit-rate-row .btn{justify-self:start}.orbit-playback{padding:18px}.orbit-figure figcaption{font-size:10px;padding:12px}.orbit-legend{gap:10px}.lab-feature>div{padding:24px}.orbit-equation code{font-size:14px}}
@media print{body,body.night{background:white;color:black}.orbit-controls,.orbit-playback,.orbit-actions,.orbit-share-fallback,.orbit-experiments .actions,.crumb{display:none}.orbit-workbench{display:block}.orbit-figure{max-width:650px;margin:auto;background:white;border-color:#aaa}.orbit-figure figcaption{background:white;color:black}.orbit-figure svg{filter:none!important;opacity:1!important;background:#091324;print-color-adjust:exact;-webkit-print-color-adjust:exact}.orbit-live strong,.orbit-constants strong,.orbit-message,.orbit-comparison,.orbit-equation code{color:black}.orbit-constants>div,.orbit-equation{background:white;border-color:#999;break-inside:avoid}.orbit-constants{grid-template-columns:repeat(3,1fr)}.orbit-equations{grid-template-columns:1fr}.orbit-method{font-size:11px}.orbit-live{margin:10px 0}.orbit-experiments{display:block}.orbit-experiments .card{background:white;border-color:#999;margin-bottom:15px;break-inside:avoid}.section{padding:22px 0}}

.orbit-constants[hidden]{display:none!important}