.physics-lab{--lab-paper:#f8f8f2;--lab-ink:#203e31;--lab-muted:#586c5c;--lab-line:#cbd5c3;--lab-cool:#4e8493;--lab-warm:#a96d41;container-type:inline-size;border-top:2px solid var(--lab-ink);border-bottom:1px solid var(--lab-line);margin:48px 0;padding:29px 0 24px;max-width:none;color:var(--lab-ink);font-family:var(--sans,'Segoe UI',Arial,sans-serif);font-size:15px;line-height:1.6}
.physics-lab *{box-sizing:border-box}
.physics-lab p{margin:0}
.physics-lab h2{font-size:clamp(1.9rem,3vw,2.8rem);line-height:1.17;margin:9px 0 15px;max-width:900px;letter-spacing:-.03em;text-wrap:balance}
.physics-lab h3{font-size:1.2rem;font-family:var(--sans,'Segoe UI',Arial,sans-serif);font-weight:600;line-height:1.4;letter-spacing:0;margin:0}
.physics-lab .lab-kicker{font-size:11px;text-transform:uppercase;letter-spacing:.13em;font-weight:650;color:var(--lab-muted)}
.physics-lab .lab-lead{max-width:830px;font-size:16px;color:var(--lab-muted)}
.physics-lab button,.physics-lab select,.physics-lab input{font:inherit}
.physics-lab button{touch-action:manipulation;cursor:pointer}
.physics-lab button:disabled{cursor:default;opacity:.5}
.physics-lab button:focus-visible,.physics-lab input:focus-visible,.physics-lab select:focus-visible,.physics-lab summary:focus-visible,.physics-lab .lab-viewport:focus-visible{outline:3px solid #a44922;outline-offset:3px}
.physics-lab .lab-workbench{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;margin-top:25px}
.physics-lab .lab-visual{min-width:0;background:#eef1e7;border:1px solid var(--lab-line)}
.physics-lab .lab-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:13px 16px;border-bottom:1px solid #d5ddce}
.physics-lab .lab-mode{display:inline-flex;gap:3px}
.physics-lab .lab-mode button{border:1px solid transparent;background:transparent;color:var(--lab-muted);padding:9px 13px;min-height:42px;font-size:13px;font-weight:600;border-radius:3px}
.physics-lab .lab-mode button[aria-pressed=true]{border-color:var(--lab-ink);background:var(--lab-ink);color:var(--lab-paper)}
.physics-lab .lab-mode button:not(:disabled):hover{border-color:#748c72}
.physics-lab .lab-schematic{font-size:11px;color:var(--lab-muted)}
.physics-lab .lab-viewport{position:relative;width:100%;height:420px;overflow:hidden;outline-offset:-4px;background:#eef1e7}
.physics-lab .lab-viewport.is-3d{cursor:grab;touch-action:none}
.physics-lab .lab-viewport.is-dragging{cursor:grabbing}
.physics-lab [data-static-diagram],.physics-lab .lab-canvas{position:absolute;inset:0}
.physics-lab .lab-diagram{display:block;width:100%;height:100%;max-width:none}
.physics-lab .lab-canvas canvas{display:block;width:100%;height:100%;max-width:none}
.physics-lab .lab-scene-labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.physics-lab .lab-scene-label{position:absolute;transform:translate(-50%,-100%);border:1px solid #8a9b85;border-radius:2px;background:#f8f8f2ed;color:var(--lab-ink);padding:5px 8px;max-width:150px;font-size:11px;line-height:1.35;pointer-events:auto;box-shadow:0 2px 5px #203e3110}
.physics-lab .lab-scene-label::after{content:'';position:absolute;left:50%;top:100%;width:1px;height:12px;background:#758c75}
.physics-lab .lab-scene-label[aria-pressed=true]{border-color:var(--lab-ink);font-weight:650;background:#e8efd9}
.physics-lab .lab-camera{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:11px 14px;border-top:1px solid #d5ddce}
.physics-lab .lab-camera>div{display:flex;gap:3px}
.physics-lab .lab-camera button{border:1px solid #bdcbb5;background:var(--lab-paper);color:var(--lab-ink);border-radius:2px;min-height:40px;padding:8px 11px;font-size:12px;line-height:1.2}
.physics-lab .lab-camera [data-camera=left],.physics-lab .lab-camera [data-camera=right],.physics-lab .lab-camera [data-camera=up],.physics-lab .lab-camera [data-camera=down],.physics-lab .lab-camera [data-camera=in],.physics-lab .lab-camera [data-camera=out]{min-width:38px;font-size:18px;padding:4px 7px}
.physics-lab .lab-camera button:hover{background:#dfe8d3}
.physics-lab .lab-camera [aria-pressed=true]{background:var(--lab-ink);color:var(--lab-paper);border-color:var(--lab-ink)}
.physics-lab .lab-view-help,.physics-lab .lab-view-status{font-size:12px;color:var(--lab-muted);padding:0 16px 12px;line-height:1.55}
.physics-lab .lab-view-status:empty{display:none}
.physics-lab .lab-controls{margin:0;min-width:0}
.physics-lab fieldset{border:0;margin:0;padding:0;min-width:0}
.physics-lab legend{font-family:var(--sans,'Segoe UI',Arial,sans-serif);font-size:17px;font-weight:600;letter-spacing:0;padding:0;margin-bottom:15px}
.physics-lab .lab-preset-label{display:block;font-size:12px;margin-bottom:6px;color:var(--lab-muted)}
.physics-lab select{color:var(--lab-ink);background:#fff;border:1px solid #aebfa3;border-radius:3px;min-height:44px;padding:8px 10px;width:100%;font-size:14px}
.physics-lab .lab-control-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:22px}
.physics-lab .lab-field label{font-size:13px;font-weight:600;line-height:1.5;display:flex;align-items:center;flex-wrap:wrap;justify-content:space-between;gap:4px 10px;margin-bottom:11px}
.physics-lab .lab-equivalent{font-size:11px;font-weight:400;color:var(--lab-muted)}
.physics-lab .lab-input-line{display:flex;gap:10px;align-items:center;min-width:0}
.physics-lab input[type=range]{width:100%;min-width:40px;accent-color:#416a4c;cursor:pointer;height:32px;margin:0;flex:1}
.physics-lab .lab-number{display:flex;align-items:center;gap:5px;flex:none;font-size:12px;color:var(--lab-muted)}
.physics-lab input[type=number]{width:64px;max-width:100%;min-height:42px;padding:8px 5px;border:1px solid #aebfa3;border-radius:3px;background:#fff;color:var(--lab-ink);font-size:16px;text-align:center;-moz-appearance:textfield}
.physics-lab input[type=number]::-webkit-inner-spin-button,.physics-lab input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.physics-lab [aria-invalid=true]{border-color:#a44922!important}
.physics-lab .lab-input-hint{font-size:12px;color:var(--lab-muted);margin-top:15px;line-height:1.55}
.physics-lab .lab-reset{margin-top:16px;background:none;border:0;border-bottom:1px solid #90a182;color:var(--lab-ink);padding:6px 0;font-size:12px;min-height:36px}
.physics-lab .lab-input-actions{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center}
.physics-lab .lab-warm-action{margin-top:15px;border:1px solid #b7c6aa;border-radius:3px;background:#e8eddf;color:var(--lab-ink);padding:8px 10px;min-height:40px;font-size:12px}
.physics-lab [data-adjustment-note]:empty{display:none}
.physics-lab .lab-error{font-size:13px;color:#9b3e21;margin-top:12px}
.physics-lab .lab-error:empty{display:none}
.physics-lab .lab-results{margin-top:24px;padding-top:21px;border-top:1px solid var(--lab-line)}
.physics-lab .lab-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:0}
.physics-lab .lab-metrics>div{min-width:0}
.physics-lab .lab-metrics dt{font-size:12px;color:var(--lab-muted);line-height:1.4;margin-bottom:8px}
.physics-lab .lab-metrics dd{font-family:var(--serif,Georgia,serif);font-size:2rem;line-height:1.18;letter-spacing:-.03em;margin:0}
.physics-lab .lab-metrics small{font-family:var(--sans,'Segoe UI',Arial,sans-serif);font-size:12px;letter-spacing:0;display:block;color:var(--lab-muted);margin-top:5px}
.physics-lab .lab-metrics .lab-saturation{font-size:1.55rem;max-width:230px}
.physics-lab .lab-result-reading{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;margin-top:25px}
.physics-lab .lab-temperature-track{display:flex;align-items:center;gap:13px;height:75px;font-size:10px;color:var(--lab-muted)}
.physics-lab .lab-track-line{position:relative;height:6px;flex:1;background:linear-gradient(90deg,#83b2be,#d5dfc7 55%,#d4aa7f);border-radius:2px;margin:0 5px}
.physics-lab .lab-track-marker{position:absolute;white-space:nowrap;transform:translateX(-50%);font-size:10px;color:var(--lab-ink)}
.physics-lab .lab-track-marker i{position:absolute;height:15px;width:2px;background:var(--lab-ink);left:50%}
.physics-lab .lab-track-dew{bottom:17px}.physics-lab .lab-track-dew i{top:100%}
.physics-lab .lab-track-surface{top:19px}.physics-lab .lab-track-surface i{bottom:100%;background:var(--lab-cool)}
.physics-lab .lab-verdict{border-left:3px solid #71956f;padding:0 0 0 17px;align-self:center}
.physics-lab .lab-verdict[data-status=condensation]{border-color:var(--lab-cool)}
.physics-lab .lab-verdict[data-status=near-boundary]{border-color:var(--lab-warm)}
.physics-lab .lab-verdict h3{font-size:16px;line-height:1.4;margin-bottom:6px}
.physics-lab .lab-verdict p{font-size:14px;line-height:1.6;color:var(--lab-muted)}
.physics-lab .lab-notes{margin-top:28px;border-top:1px solid var(--lab-line);padding-top:22px}
.physics-lab .lab-notes>h3{font-size:16px;margin-bottom:12px}
.physics-lab .lab-parts{border-top:1px solid var(--lab-line)}
.physics-lab .lab-parts details{border-bottom:1px solid var(--lab-line);padding:0}
.physics-lab summary{cursor:pointer;min-height:43px;padding:10px 3px;font-size:14px;font-weight:600;line-height:1.5}
.physics-lab summary::marker{color:#6b8661}
.physics-lab details p{font-size:14px;line-height:1.7;color:var(--lab-muted);padding:0 3px 15px;max-width:850px}
.physics-lab details[open] summary{color:#345f43}
.physics-lab .lab-assumptions{margin-top:13px}
.physics-lab .lab-assumptions summary{font-size:13px;font-weight:500}
.physics-lab .lab-assumptions p{font-size:12px;max-width:900px}
.physics-lab .lab-no-script{font-size:13px;margin-top:18px;border-left:2px solid #9baa8e;padding-left:14px}
.physics-lab [hidden]{display:none!important}
.physics-lab .visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
@container (min-width:900px){.physics-lab:not(.physics-lab--compact) .lab-workbench{grid-template-columns:minmax(0,1.8fr) minmax(285px,1fr);gap:30px}.physics-lab:not(.physics-lab--compact) .lab-control-fields{grid-template-columns:1fr;gap:20px}.physics-lab .lab-result-reading{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:35px}.physics-lab .lab-parts{display:grid;grid-template-columns:1fr 1fr;gap:0 30px}.physics-lab .lab-parts details[open]{grid-column:1/-1}}
@container (max-width:600px){.physics-lab h2{font-size:1.9rem}.physics-lab .lab-lead{font-size:15px}.physics-lab .lab-toolbar{padding:10px;gap:7px}.physics-lab .lab-schematic{font-size:10px}.physics-lab .lab-mode button{padding:8px 10px}.physics-lab .lab-viewport{height:340px}.physics-lab .lab-control-fields{grid-template-columns:1fr;gap:18px}.physics-lab .lab-controls{padding:0 4px}.physics-lab .lab-field label{margin-bottom:6px}.physics-lab .lab-number input{width:68px}.physics-lab .lab-metrics{gap:15px}.physics-lab .lab-metrics dd{font-size:1.7rem}.physics-lab .lab-metrics .lab-saturation{font-size:1.2rem}.physics-lab .lab-metrics dt{font-size:11px}.physics-lab .lab-camera{padding:9px;gap:6px}.physics-lab .lab-scene-label{max-width:120px;font-size:10px}.physics-lab .lab-track-end{font-size:9px}.physics-lab .lab-verdict{padding-left:13px}}
@media(prefers-reduced-motion:reduce){.physics-lab *, .physics-lab *::before,.physics-lab *::after{animation:none!important;transition:none!important}}
@media print{.physics-lab .lab-canvas,.physics-lab .lab-scene-labels,.physics-lab .lab-camera,.physics-lab .lab-mode,.physics-lab .lab-controls,.physics-lab .lab-view-help,.physics-lab .lab-view-status{display:none!important}.physics-lab [data-static-diagram]{display:block!important}.physics-lab .lab-viewport{height:320px}.physics-lab{break-inside:avoid;margin:20px 0}.physics-lab details:not([open])>p{display:block}.physics-lab .lab-workbench{display:block}.physics-lab .lab-parts details{break-inside:avoid}}