.at{--at-ink:#263e32;--at-gold:#92703c;--at-paper:#faf5e9;color:var(--at-ink);max-width:1100px;margin:auto;padding:55px 6vw 80px;font:19px/1.75 Georgia,serif}.at *{box-sizing:border-box}.at .eyebrow{font:12px/1.5 Arial,sans-serif;letter-spacing:.13em;text-transform:uppercase;color:#73582f}.at h1{font:normal clamp(38px,6vw,66px)/1.12 Georgia,serif;max-width:850px;margin:20px 0 26px}.at h2{font:normal clamp(27px,4vw,36px)/1.25 Georgia,serif;margin:10px 0 20px}.at h3{font:normal 25px/1.3 Georgia,serif}.at .lead{font-size:23px;max-width:750px}.at a{color:inherit;text-underline-offset:5px}.at .at-btn{display:inline-block;padding:13px 22px;border:1px solid var(--at-ink);background:var(--at-ink);color:#fff9ed;font:16px/1.5 Arial,sans-serif;text-decoration:none;cursor:pointer}.at .at-btn.secondary{background:transparent;color:var(--at-ink)}.at .at-btn:disabled{opacity:.45;cursor:not-allowed}.at :focus-visible{outline:3px solid #915026;outline-offset:5px}.at .at-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:38px 0}.at .at-card{border:1px solid #c5b38f;padding:30px;background:var(--at-paper)}.at .at-card p{margin:12px 0 23px}.at .at-card .eyebrow{display:block}.at .at-dark{background:var(--at-ink);color:#fff9ed;padding:34px;margin:40px 0}.at .at-dark .eyebrow{color:#e0c794}.at .at-dark .at-btn{background:#f3e5c7;color:var(--at-ink);border-color:#f3e5c7}.at .at-note{font:15px/1.7 Arial,sans-serif;color:#595a4b}.at .at-line{padding:32px 0;border-top:1px solid #c5b38f}.at .at-quiz{margin:36px 0;padding:32px;border:1px solid #baa37b;background:var(--at-paper);min-height:300px}.at fieldset{padding:0;border:0;margin:0}.at legend{font:normal 28px/1.35 Georgia,serif;margin:20px 0;float:left;width:100%}.at legend+*{clear:both}.at .at-option{display:flex;gap:13px;align-items:flex-start;border:1px solid #c5b38f;background:#fffdf6;padding:15px;margin:10px 0;cursor:pointer;font-size:18px}.at .at-option:has(input:checked){background:#e7eddf;border-color:#263e32}.at input[type=radio]{margin-top:9px;accent-color:#263e32;min-width:18px;min-height:18px}.at .at-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.at progress{width:100%;height:7px;accent-color:#263e32}.at .at-feedback{padding:20px;border-left:3px solid #92703c;background:#eee4cf;margin:20px 0}.at .at-result{padding:25px 0;border-bottom:1px solid #c5b38f}.at .at-result img{width:95px;height:140px;object-fit:contain;float:right;margin:0 0 18px 20px}.at .at-result:after{content:'';display:block;clear:both}.at details{border:1px solid #c5b38f;padding:18px 22px;margin:15px 0}.at summary{cursor:pointer;font-size:21px}.at .at-lesson{scroll-margin-top:35px;padding:32px 0;border-top:1px solid #c5b38f}.at .at-scene{font-size:22px;font-style:italic;border-left:3px solid #92703c;padding:8px 24px;margin:25px 0}.at .at-skip{position:absolute;left:-9999px}.at .at-skip:focus{position:static}.at [hidden]{display:none!important}.at .at-breadcrumb{font:14px/1.6 Arial,sans-serif;margin-bottom:28px}.at .at-toc{display:flex;gap:10px 20px;flex-wrap:wrap;margin:28px 0;font-size:16px}.at textarea{width:100%;min-height:130px;padding:15px;font:17px/1.6 Georgia,serif;border:1px solid #92703c;background:#fffdf6;color:#263e32}.at .at-mark{font-size:50px;line-height:1;color:#92703c;display:block;margin:0 0 22px}.at .at-books{columns:2;column-gap:30px;padding-left:22px}.at .at-books li{break-inside:avoid;margin-bottom:12px;font-size:16px}@media(max-width:680px){.at{padding:30px 22px 55px;font-size:18px}.at .at-grid{grid-template-columns:1fr}.at .at-quiz,.at .at-card,.at .at-dark{padding:22px}.at .lead{font-size:21px}.at .at-books{columns:1}.at .at-option{padding:12px}.at legend{font-size:25px}}@media print{header,footer,.mb-site-notice,.at-actions,.at-quiz{display:none!important}.at{padding:0;max-width:none;font-size:12pt}.at details>*{display:block}.at .at-grid{display:block}.at a{color:#000}.at h1{font-size:30pt}}