#formula-lab{--lab-bg:#f7f3ee;--lab-ink:#063853;--lab-panel:#fff;--lab-border:#aec5ca;--lab-accent:#b9422b}#formula-lab{color:var(--lab-ink);max-width:1200px;margin:auto;padding:32px 22px;font:16px/1.6 system-ui,sans-serif}#formula-lab{margin:0;background:var(--lab-bg)}[data-theme="dark"] #formula-lab{--lab-bg:#0b2630;--lab-ink:#ecf4f5;--lab-panel:#123641;--lab-border:#44616b;--lab-accent:#ffa38b}#formula-lab .eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.8rem}#formula-lab h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.1}#formula-lab a{color:inherit}#formula-lab input,#formula-lab select,#formula-lab button{font:inherit;color:inherit;background:var(--lab-panel);border:1px solid var(--lab-border);border-radius:6px;padding:10px;max-width:100%;box-sizing:border-box}#formula-lab .controls{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0}#formula-lab .controls label{display:grid;gap:5px;flex:1;min-width:150px}#formula-lab .dictionary{display:flex;gap:8px;flex-wrap:wrap}#formula-lab .dictionary button[aria-pressed="true"],#formula-lab .perspectives button[aria-pressed="true"]{outline:2px solid var(--lab-accent)}#formula-lab .perspectives{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}#formula-lab .lesson-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);align-items:start;gap:28px}#formula-lab .lab-copy,#formula-lab .lab-practice{background:var(--lab-panel);border:1px solid var(--lab-border);padding:24px;border-radius:12px}#formula-lab .lab-copy h2{margin-top:0}#formula-lab .lab-practice{min-width:0}#formula-lab .sheet-scroll{overflow:auto}#formula-lab table{border-collapse:collapse;width:100%;margin:12px 0}#formula-lab td,#formula-lab th{border:1px solid var(--lab-border);padding:3px}#formula-lab td input{border:0;border-radius:0;width:100%;min-width:90px;padding:8px}#formula-lab th{font-size:.8rem}#formula-lab .formula-entry{width:100%;font-family:monospace!important}#formula-lab .result{display:block;font-size:1.8rem;margin:18px 0;overflow-wrap:anywhere}#formula-lab .limits{font-size:.85rem;border-top:1px solid var(--lab-border);margin-top:30px;padding-top:20px}#formula-lab blockquote{margin:18px 0;padding-left:16px;border-left:3px solid var(--lab-accent)}@media(max-width:740px){#formula-lab .lesson-grid{grid-template-columns:1fr}#formula-lab .lab-copy,#formula-lab .lab-practice{padding:18px}#formula-lab .controls label{min-width:135px}}