.lab-intro{max-width:880px;margin-bottom:64px}.lab-intro h1{margin:22px 0;font-size:clamp(38px,5.5vw,72px);line-height:1.05}.lab-intro>p:not(.eyebrow){color:var(--muted);font-size:18px}.lab-intro .lab-intro-note{max-width:740px;margin:18px 0 24px;font-size:14px!important}.lab-stack{gap:40px;display:grid}.lab-card{border:1px solid var(--line);background:#fffef9;border-radius:12px;padding:36px}.lab-card-heading{max-width:750px;margin-bottom:28px}.lab-card-heading h2{margin:15px 0 12px;font-size:clamp(26px,3vw,40px)}.lab-card-heading>p:last-child{color:var(--muted)}.lab-columns{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:44px;display:grid}.lab-inputs{align-content:start;gap:15px;display:grid}.lab-field{gap:7px;font-size:13px;font-weight:600;display:grid}.lab-field span{flex-wrap:wrap;justify-content:space-between;gap:4px 12px;display:flex}.lab-field small{color:var(--muted);font-weight:400}.lab-field input{width:100%;min-width:0;min-height:45px;color:var(--ink);background:var(--paper);font-family:var(--mono);border:1px solid #bcc7b4;border-radius:5px;padding:10px 12px}.lab-paired{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.lab-result-area{min-width:0}.lab-diagram{width:100%;height:auto;font-family:var(--mono);margin-bottom:18px;display:block}.lab-results{border-top:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;padding-top:20px;display:grid}.lab-results span{color:var(--muted);margin-bottom:7px;font-size:12px;display:block}.lab-results strong{font:600 clamp(17px, 1.9vw, 25px)/1.4 var(--mono);overflow-wrap:anywhere}.lab-results strong small{font-size:11px;font-weight:400}.lab-formula{font:11px/1.9 var(--mono);color:var(--muted);margin-top:24px}.lab-highlight{background:#edf3e2;border-left:3px solid #648536;margin-top:18px;padding:13px 15px;font-size:13px}.lab-error{color:#7c341e;background:#fff0e8;border-left:3px solid #ad6446;padding:14px;font-size:14px}.lab-assumption{border-top:1px solid var(--line);color:var(--muted);margin-top:28px;padding-top:20px;font-size:12px}@media (max-width:900px){.lab-columns{grid-template-columns:1fr;gap:28px}.lab-card{padding:26px}.lab-intro{margin-bottom:40px}}@media (max-width:480px){.lab-card{padding:20px}.lab-paired{grid-template-columns:1fr}.lab-results{gap:10px}.lab-results strong{font-size:16px}.lab-results span{font-size:11px}}