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var(--border);border-radius:9px;background:#fff;overflow:hidden;margin-top:7px}.lab-controls{padding:23px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;border-bottom:1px solid #edf0f2}.lab-controls label{font-size:12px}.lab-controls output{float:right;font-size:11px;color:var(--teal);font-variant-numeric:tabular-nums}input[type=range]{width:100%;accent-color:var(--teal);margin:18px 0 0;display:block}canvas{display:block;width:100%;height:300px}.lab-result{display:flex;justify-content:space-around;gap:10px;padding:8px 15px 15px;text-align:center;font-size:10px;color:var(--muted)}.lab-result strong{display:block;font-size:20px;color:var(--ink);font-variant-numeric:tabular-nums;font-weight:500}.boundary{margin:0;padding:0 23px 14px;font-size:12px;color:#a15b16}.equation{text-align:center;font:20px/1.7 Georgia,serif;background:#f0f6f6;padding:17px}.equation small{display:block;font:10px/1.7 'Microsoft 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