.study-section{padding:38px 0;border-bottom:1px solid var(--rule)}.study-section h2{font-size:2rem;margin:5px 0 24px}.study-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:24px}.study-card{border:1px solid var(--rule);padding:24px;background:var(--knit);min-width:0}.study-card h3{margin-top:0}.study-card img{width:100%;height:auto;display:block}.study-controls{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.study-controls button[aria-pressed=true]{background:var(--ink);color:var(--paper)}.study-stage{min-height:400px;border:1px solid var(--rule);background:var(--paper-2);padding:20px;display:flex;align-items:center;justify-content:center}.study-stage svg{width:auto;max-width:100%;max-height:560px;height:auto;display:block}.study-stage img{width:100%;max-height:560px;object-fit:contain}.study-cells{display:grid;gap:1px;width:min(100%,400px)}.study-cell{aspect-ratio:1;border:1px solid var(--rule);padding:0;background:var(--knit);color:var(--ink)}.study-cell[aria-pressed=true]{outline:3px solid var(--red);outline-offset:-3px}.study-cell .dot{display:inline-block;width:35%;height:35%;border-radius:50%;background:var(--ink)}.study-row{width:100%;accent-color:var(--red)}.study-evidence{font:12px var(--mono);padding:12px;border:1px dashed var(--ink);margin:12px 0}.study-readout{min-height:4rem;font:13px var(--mono);overflow-wrap:anywhere}.study-letter{font:900 3rem var(--font);margin:0}.study-bits{display:flex;gap:8px;flex-wrap:wrap}.study-bit{padding:10px;border:1px solid var(--ink);font:18px var(--mono)}.study-lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}@media(max-width:650px){.study-grid,.study-lesson-grid{grid-template-columns:1fr}.study-card{padding:16px}.study-stage{min-height:260px;padding:10px}.study-section h2{font-size:1.6rem}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}.study-live{border-top:1px solid var(--rule);padding-top:18px;margin-top:20px}.study-key{display:flex;gap:10px;align-items:center;font:14px var(--font);cursor:pointer}.study-key input{accent-color:var(--red);width:18px;height:18px}.study-current{font:900 clamp(3rem,7vw,5rem)/1 var(--font);margin:22px 0 12px;min-height:1em;overflow-wrap:anywhere}.study-current.partial{text-decoration:underline dotted var(--red);text-underline-offset:.13em}.study-current.waiting{color:var(--ink-2)}.study-current-bits{overflow-wrap:anywhere}.study-reading-state{font-size:14px}.study-message{display:flex;gap:5px;flex-wrap:wrap;margin:20px 0}.study-symbol{display:inline-flex;justify-content:center;align-items:center;min-width:26px;min-height:32px;padding:3px;border:1px solid var(--rule);font:600 16px var(--mono)}.study-symbol.partial{border:1px dashed var(--red)}.study-symbol.waiting{opacity:.45}.study-symbol.error{border:2px solid var(--red)}