.lesson-header[data-astro-cid-yuqcs7zz]{max-width:850px;padding-block:4rem}.lesson-header[data-astro-cid-yuqcs7zz] nav[data-astro-cid-yuqcs7zz]{color:var(--ink-muted);gap:.55rem;margin-bottom:2.75rem;font-size:.76rem;display:flex}.lesson-header__number[data-astro-cid-yuqcs7zz],.section-number[data-astro-cid-yuqcs7zz]{color:var(--accent-dim);font-family:var(--font-mono);font-size:.74rem}.lesson-header[data-astro-cid-yuqcs7zz] h1[data-astro-cid-yuqcs7zz]{max-width:15ch;margin-top:.65rem}.lesson-header__question[data-astro-cid-yuqcs7zz]{max-width:62ch;color:var(--ink);margin-top:1.4rem;font-size:1.16rem;font-weight:560}.lesson-header__standfirst[data-astro-cid-yuqcs7zz]{max-width:68ch;color:var(--ink-secondary);margin-top:.85rem;font-size:1.02rem}.lesson-header__component[data-astro-cid-yuqcs7zz]{flex-wrap:wrap;gap:.4rem .9rem;margin-top:1.5rem;font-size:.78rem;display:flex}.lesson-header__component[data-astro-cid-yuqcs7zz] span[data-astro-cid-yuqcs7zz]{color:var(--ink-muted);font-family:var(--font-mono)}.lesson-layout[data-astro-cid-yuqcs7zz]{border-top:1px solid var(--rule);grid-template-columns:180px minmax(0,760px);gap:3.5rem;padding-bottom:3rem;display:grid}.lesson-nav[data-astro-cid-yuqcs7zz]{padding-top:3.5rem}.lesson-nav[data-astro-cid-yuqcs7zz]>div[data-astro-cid-yuqcs7zz]{border-left:1px solid var(--rule);flex-direction:column;gap:.45rem;padding-left:.85rem;display:flex;position:sticky;top:6rem}.lesson-nav[data-astro-cid-yuqcs7zz] p[data-astro-cid-yuqcs7zz]{margin-bottom:.2rem;font-size:.76rem;font-weight:600}.lesson-nav[data-astro-cid-yuqcs7zz] a[data-astro-cid-yuqcs7zz]{color:var(--ink-secondary);font-size:.74rem;line-height:1.35;text-decoration:none}.lesson-body[data-astro-cid-yuqcs7zz]{min-width:0}.concept-link{font-weight:590;text-decoration-thickness:1px}.lesson-body[data-astro-cid-yuqcs7zz]>section[data-astro-cid-yuqcs7zz]{scroll-margin-top:6rem}.objectives[data-astro-cid-yuqcs7zz]{border:1px solid var(--rule);border-left:4px solid var(--accent);background:var(--ground-raised);margin-top:3.5rem;padding:1.5rem 1.7rem}.objectives[data-astro-cid-yuqcs7zz] ul[data-astro-cid-yuqcs7zz]{gap:.45rem;margin-top:.8rem;padding-left:1.2rem;display:grid}.lesson-section[data-astro-cid-yuqcs7zz]{padding-block:4rem 0}.lesson-section[data-astro-cid-yuqcs7zz] h2[data-astro-cid-yuqcs7zz],.checks[data-astro-cid-yuqcs7zz] h2[data-astro-cid-yuqcs7zz]{max-width:24ch;margin-top:.4rem}.lesson-section[data-astro-cid-yuqcs7zz]>p[data-astro-cid-yuqcs7zz]:not(.section-number){max-width:var(--measure);color:var(--ink-secondary);margin-top:1rem}.worked-example[data-astro-cid-yuqcs7zz]{border-top:4px solid var(--secondary);background:var(--gold-wash);margin-top:4rem;padding:clamp(1.4rem,4vw,2.4rem)}.worked-example[data-astro-cid-yuqcs7zz] h2[data-astro-cid-yuqcs7zz]{margin-top:.4rem}.worked-example__prompt[data-astro-cid-yuqcs7zz]{color:var(--ink-secondary);margin-top:.9rem}.worked-example[data-astro-cid-yuqcs7zz] ol[data-astro-cid-yuqcs7zz]{border-top:1px solid var(--rule-strong);counter-reset:steps;margin-top:1.5rem;padding:0;list-style:none}.worked-example[data-astro-cid-yuqcs7zz] li[data-astro-cid-yuqcs7zz]{border-bottom:1px solid var(--rule-strong);grid-template-columns:minmax(100px,.35fr) minmax(0,1.65fr);gap:1rem;padding:.8rem 0;display:grid}.worked-example[data-astro-cid-yuqcs7zz] li[data-astro-cid-yuqcs7zz] span[data-astro-cid-yuqcs7zz]{font-weight:650}.worked-example__result[data-astro-cid-yuqcs7zz]{margin-top:1.25rem}.checks[data-astro-cid-yuqcs7zz]{padding-block:4rem}.checks[data-astro-cid-yuqcs7zz]>p[data-astro-cid-yuqcs7zz]:not(.section-number){color:var(--ink-secondary);margin-top:.8rem}.checks[data-astro-cid-yuqcs7zz] details[data-astro-cid-yuqcs7zz]{border-bottom:1px solid var(--rule)}.checks[data-astro-cid-yuqcs7zz] details[data-astro-cid-yuqcs7zz]:first-of-type{border-top:1px solid var(--rule);margin-top:1.2rem}.checks[data-astro-cid-yuqcs7zz] summary[data-astro-cid-yuqcs7zz]{cursor:pointer;grid-template-columns:1.6rem 1fr;gap:.5rem;padding:1rem 0;font-weight:600;display:grid}.checks[data-astro-cid-yuqcs7zz] summary[data-astro-cid-yuqcs7zz] span[data-astro-cid-yuqcs7zz]{color:var(--accent-dim);font-family:var(--font-mono);font-size:.75rem}.checks[data-astro-cid-yuqcs7zz] details[data-astro-cid-yuqcs7zz] p[data-astro-cid-yuqcs7zz]{color:var(--ink-secondary);padding:0 0 1rem 2.1rem}.terms[data-astro-cid-yuqcs7zz]{border-top:1px solid var(--rule);padding-block:3rem}.terms__heading[data-astro-cid-yuqcs7zz]{justify-content:space-between;align-items:end;gap:1rem;display:flex}.terms__heading[data-astro-cid-yuqcs7zz] h2[data-astro-cid-yuqcs7zz]{margin-top:.35rem}.terms__heading[data-astro-cid-yuqcs7zz]>a[data-astro-cid-yuqcs7zz]{font-size:.82rem}.terms[data-astro-cid-yuqcs7zz] ul[data-astro-cid-yuqcs7zz]{border-top:1px solid var(--rule);border-left:1px solid var(--rule);grid-template-columns:1fr 1fr;margin-top:1.25rem;padding:0;list-style:none;display:grid}.terms[data-astro-cid-yuqcs7zz] li[data-astro-cid-yuqcs7zz]{border-right:1px solid var(--rule);border-bottom:1px solid var(--rule)}.terms[data-astro-cid-yuqcs7zz] li[data-astro-cid-yuqcs7zz] a[data-astro-cid-yuqcs7zz]{height:100%;color:inherit;gap:.2rem;padding:.85rem;text-decoration:none;display:grid}.terms[data-astro-cid-yuqcs7zz] li[data-astro-cid-yuqcs7zz] a[data-astro-cid-yuqcs7zz]:hover strong[data-astro-cid-yuqcs7zz]{color:var(--accent-dim)}.terms[data-astro-cid-yuqcs7zz] li[data-astro-cid-yuqcs7zz] span[data-astro-cid-yuqcs7zz]{color:var(--ink-secondary);font-size:.78rem;line-height:1.4}.lesson-sequence[data-astro-cid-yuqcs7zz]{border-top:1px solid var(--rule);grid-template-columns:1fr 1fr;gap:1rem;padding-block:2rem 5rem;display:grid}.lesson-sequence[data-astro-cid-yuqcs7zz] a[data-astro-cid-yuqcs7zz]{border:1px solid var(--rule);color:inherit;padding:1rem;text-decoration:none;display:grid}.lesson-sequence[data-astro-cid-yuqcs7zz] a[data-astro-cid-yuqcs7zz]:hover{border-color:var(--accent-edge)}.lesson-sequence[data-astro-cid-yuqcs7zz] span[data-astro-cid-yuqcs7zz]{color:var(--ink-muted);font-size:.72rem}.lesson-sequence[data-astro-cid-yuqcs7zz] .next[data-astro-cid-yuqcs7zz]{text-align:right}@media (width<=800px){.lesson-layout[data-astro-cid-yuqcs7zz]{grid-template-columns:1fr;gap:0}.lesson-nav[data-astro-cid-yuqcs7zz]{padding-top:1.25rem;overflow-x:auto}.lesson-nav[data-astro-cid-yuqcs7zz]>div[data-astro-cid-yuqcs7zz]{border:0;flex-direction:row;min-width:max-content;padding:0 0 .8rem;position:static}.lesson-nav[data-astro-cid-yuqcs7zz] p[data-astro-cid-yuqcs7zz]{display:none}.lesson-nav[data-astro-cid-yuqcs7zz] a[data-astro-cid-yuqcs7zz]{border:1px solid var(--rule);padding:.35rem .55rem}}@media (width<=600px){.terms[data-astro-cid-yuqcs7zz] ul[data-astro-cid-yuqcs7zz],.lesson-sequence[data-astro-cid-yuqcs7zz]{grid-template-columns:1fr}.lesson-sequence[data-astro-cid-yuqcs7zz]>span[data-astro-cid-yuqcs7zz]{display:none}.worked-example[data-astro-cid-yuqcs7zz] li[data-astro-cid-yuqcs7zz]{grid-template-columns:1fr;gap:.2rem}}