.worked-example-v2[data-astro-cid-fdfutavh]:has(.example-solution:not([open])) .worked-example-v2__feedback[data-astro-cid-fdfutavh],.worked-example-v2[data-astro-cid-fdfutavh]:has(.example-solution[data-example-enhanced=true]:not([data-example-complete])) .worked-example-v2__feedback[data-astro-cid-fdfutavh]{display:none}@media print{.worked-example-v2[data-astro-cid-fdfutavh] .worked-example-v2__feedback[data-astro-cid-fdfutavh]{display:block!important}}.worked-example-v2[data-astro-cid-fdfutavh]{margin-block:var(--space-6);padding:var(--space-3) clamp(.75rem, 3vw, 1.5rem);border:1px solid var(--line-300);border-inline-start:4px solid var(--accent-600);border-radius:var(--radius-card);background:var(--surface-subtle)}.worked-example-v2__header[data-astro-cid-fdfutavh]{padding:0 0 var(--space-2);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.75rem 1.5rem;display:flex}.worked-example-v2__eyebrow[data-astro-cid-fdfutavh]{align-items:center;gap:var(--space-1);margin:0 0 var(--space-1);color:var(--accent-700);font-family:var(--font-ui);font-size:var(--type-caption);font-weight:650;display:flex}.worked-example-v2__eyebrow[data-astro-cid-fdfutavh] svg{flex:none}.worked-example-v2--comparison[data-astro-cid-fdfutavh] .worked-example-v2__eyebrow[data-astro-cid-fdfutavh]{color:var(--info-700)}.worked-example-v2--challenge[data-astro-cid-fdfutavh] .worked-example-v2__eyebrow[data-astro-cid-fdfutavh]{color:var(--warning-700)}.worked-example-v2--exam-paper[data-astro-cid-fdfutavh] .worked-example-v2__eyebrow[data-astro-cid-fdfutavh]{color:var(--text-secondary)}.worked-example-v2__heading[data-astro-cid-fdfutavh]{color:var(--text-primary);font-family:var(--font-heading);letter-spacing:-.008em;text-wrap:balance;margin:0;scroll-margin-top:6rem;font-size:clamp(1.15rem,2vw,1.4rem);font-weight:650;line-height:1.25}.worked-example-v2__meta[data-astro-cid-fdfutavh]{color:var(--text-secondary);font-family:var(--font-ui);font-size:var(--type-caption);white-space:nowrap;margin:0;font-weight:650}.worked-example-v2__prompt[data-astro-cid-fdfutavh],.worked-example-v2__attempt[data-astro-cid-fdfutavh],.worked-example-v2__hints[data-astro-cid-fdfutavh],.worked-example-v2__solution[data-astro-cid-fdfutavh],.worked-example-v2__feedback[data-astro-cid-fdfutavh]{padding-inline:0}.worked-example-v2__prompt[data-astro-cid-fdfutavh]{padding-block:var(--space-1) var(--space-3)}.worked-example-v2__prompt[data-astro-cid-fdfutavh] .figure-media--scroll .figure-image{max-width:min(100%, calc(var(--figure-image-min-width) * 1.5))}.worked-example-v2__attempt[data-astro-cid-fdfutavh],.worked-example-v2__hints[data-astro-cid-fdfutavh],.worked-example-v2__solution[data-astro-cid-fdfutavh],.worked-example-v2__feedback[data-astro-cid-fdfutavh]{padding-block:var(--space-3);border-top:1px solid var(--divider-quiet)}.worked-example-v2--exam-paper[data-astro-cid-fdfutavh] .worked-example-v2__meta[data-astro-cid-fdfutavh]{color:var(--text-primary);font-size:var(--type-meta);font-weight:700}.worked-example-v2--exam-paper[data-astro-cid-fdfutavh] .worked-example-v2__attempt[data-astro-cid-fdfutavh]{border-top-color:var(--line-300)}.worked-example-v2--exam-paper[data-astro-cid-fdfutavh] .rubric-marker{border:0;border-block:1px solid var(--line-300);border-radius:0}.worked-example-v2--exam-paper[data-astro-cid-fdfutavh] .rubric-marker__point{border:0;border-bottom:1px solid var(--line-200);border-radius:0;padding:.65rem 0}.worked-example-v2--exam-paper[data-astro-cid-fdfutavh] .rubric-marker__result{border:0;border-top:1px solid var(--line-300);background:0 0;border-radius:0;padding:.8rem 0}.worked-example-v2[data-astro-cid-fdfutavh] :focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}@media (width<=40rem){.worked-example-v2__header[data-astro-cid-fdfutavh]{display:block}.worked-example-v2__meta[data-astro-cid-fdfutavh]{white-space:normal;margin-top:.45rem}}@media print{.worked-example-v2[data-astro-cid-fdfutavh]{break-inside:auto;background:0 0;border-color:currentColor}.worked-example-v2__header[data-astro-cid-fdfutavh]{break-inside:avoid;break-after:avoid;background:0 0}}.example-prompt__label[data-astro-cid-6nz6gpvc]{align-items:center;gap:var(--space-1);color:var(--text-primary);font-family:var(--font-ui,var(--font-body));font-size:var(--type-meta);margin:0 0 .45rem;font-weight:700;display:flex}.example-prompt__body[data-astro-cid-6nz6gpvc]>:first-child{margin-top:0}.example-prompt__body[data-astro-cid-6nz6gpvc]>:last-child{margin-bottom:0}@media print{.example-prompt[data-astro-cid-6nz6gpvc]{break-inside:avoid}.example-prompt__label[data-astro-cid-6nz6gpvc]{break-after:avoid}}.example-attempt[data-astro-cid-bwk5ri3n]{padding:0}.example-attempt__label[data-astro-cid-bwk5ri3n]{color:var(--ink-900);font-family:var(--font-ui,var(--font-body));font-size:var(--type-meta);margin:0 0 .55rem;font-weight:700}.example-attempt__body[data-astro-cid-bwk5ri3n]>*+*{margin-top:var(--space-4,1.5rem)}.example-attempt__body[data-astro-cid-bwk5ri3n]>:first-child{margin-top:0}.example-attempt__body[data-astro-cid-bwk5ri3n]>:last-child{margin-bottom:0}@media print{.example-attempt[data-astro-cid-bwk5ri3n]{display:none}.example-attempt[data-astro-cid-bwk5ri3n]:has(.numeric-response-field,.choice-response-field){display:block}.example-attempt__label[data-astro-cid-bwk5ri3n]{display:none}}.example-hints__label[data-astro-cid-dtd3ozd6]{color:var(--text-primary);font-family:var(--font-ui,var(--font-body));font-size:var(--type-meta);margin:0 0 .5rem;font-weight:700}.example-hints__list[data-astro-cid-dtd3ozd6]{gap:0;display:grid}@media print{.example-hints[data-astro-cid-dtd3ozd6]{display:none}}.example-hint[data-astro-cid-mpmuxzvc]{border-bottom:1px solid var(--line-200)}.example-hint[data-astro-cid-mpmuxzvc]:first-child{border-top:1px solid var(--line-200)}.example-hint__body[data-astro-cid-mpmuxzvc]{color:var(--ink-700);padding:0 0 .8rem}.example-hint__title[data-astro-cid-mpmuxzvc]{font-weight:650}.example-hint__body[data-astro-cid-mpmuxzvc]>:first-child{margin-top:0}.example-hint__body[data-astro-cid-mpmuxzvc]>:last-child{margin-bottom:0}.example-solution[data-astro-cid-2yj5y4us]{min-width:0;max-width:100%;container:example-solution/inline-size}.example-solution__steps[data-astro-cid-2yj5y4us]{counter-reset:example-step;gap:1.6rem;min-width:0;max-width:100%;padding:0;list-style:none;display:grid;position:relative}.example-solution__steps[data-astro-cid-2yj5y4us]:before{content:"";background:var(--line-300);width:1px;position:absolute;top:.85rem;bottom:.85rem;left:.98rem}.example-solution__steps[data-astro-cid-2yj5y4us]>.example-step:last-child .example-layer--working{padding:var(--space-3);border-inline-start:3px solid var(--accent-600);background:var(--surface-subtle);grid-template-columns:4.75rem minmax(0,1fr)}.example-solution__steps[data-astro-cid-2yj5y4us]>.example-step:last-child .example-layer__label--working{display:none}.example-solution__steps[data-astro-cid-2yj5y4us]>.example-step:last-child .example-layer__label--answer{display:block}.example-solution__controls[data-astro-cid-2yj5y4us]{flex-wrap:wrap;gap:.55rem;margin-top:1rem;display:flex}.example-solution__controls[data-astro-cid-2yj5y4us] button[data-astro-cid-2yj5y4us]{min-height:var(--control-height,2.75rem);padding:var(--space-1,.5rem) var(--space-3,1rem);border:1px solid var(--control-boundary,var(--accent-700));border-radius:var(--radius-control,.5rem);color:var(--link,var(--accent-700));background:var(--surface-raised,var(--paper-0));cursor:pointer;font:650 var(--type-meta,.9rem)/1.3 var(--font-ui,var(--font-body))}.example-solution__controls[data-astro-cid-2yj5y4us] button[data-astro-cid-2yj5y4us]:hover{border-color:var(--link,var(--accent-700));background:var(--selected-bg,var(--paper-0))}.example-solution__controls[data-astro-cid-2yj5y4us] button[data-astro-cid-2yj5y4us]:first-child{border-color:var(--action-bg,var(--accent-700));color:var(--action-fg,var(--paper-0));background:var(--action-bg,var(--accent-700))}.example-solution__controls[data-astro-cid-2yj5y4us] button[data-astro-cid-2yj5y4us]:first-child:hover{background:var(--action-bg-hover,var(--accent-700))}.example-solution__status[data-astro-cid-2yj5y4us]{color:var(--ink-600);font-family:var(--font-ui,var(--font-body));font-size:var(--type-caption);margin:.7rem 0 0}@container example-solution (width<=34rem){.example-solution__steps[data-astro-cid-2yj5y4us]>.example-step:last-child .example-layer--working{grid-template-columns:minmax(0,1fr)}.example-solution__steps[data-astro-cid-2yj5y4us]{gap:1.35rem}.example-solution__steps[data-astro-cid-2yj5y4us]:before{display:none}}@media print{.example-solution__steps[data-astro-cid-2yj5y4us]>.example-step:last-child .example-layer--working{background:0 0;border-color:currentColor}.example-solution[data-astro-cid-2yj5y4us]::details-content{content-visibility:visible}.example-solution[data-astro-cid-2yj5y4us]>summary[data-astro-cid-2yj5y4us],.example-solution__controls[data-astro-cid-2yj5y4us],.example-solution__status[data-astro-cid-2yj5y4us]{display:none!important}.example-solution__steps[data-astro-cid-2yj5y4us]{display:block}.example-solution__steps[data-astro-cid-2yj5y4us]>.example-step[hidden]{display:list-item!important}}.example-step[data-astro-cid-vdbvx2hh]{break-inside:avoid;counter-increment:example-step;min-width:0;max-width:100%;min-height:2rem;padding:0 0 0 3.25rem;position:relative}.example-step[data-astro-cid-vdbvx2hh]:before{content:counter(example-step);z-index:1;border:1px solid var(--accent-600);width:2rem;height:2rem;color:var(--accent-700);background:var(--paper-0);font:800 var(--type-caption)/1 var(--font-ui,var(--font-body));border-radius:50%;place-items:center;display:grid;position:absolute;top:-.15rem;left:0}.example-step__header[data-astro-cid-vdbvx2hh]{justify-content:space-between;align-items:baseline;gap:.75rem;min-width:0;max-width:100%;display:flex}.example-step__header[data-astro-cid-vdbvx2hh] .example-step__title[data-astro-cid-vdbvx2hh]{color:var(--ink-900);margin:0;font-size:1rem}.example-step__mark[data-astro-cid-vdbvx2hh]{color:var(--accent-700);font-family:var(--font-ui,var(--font-body));font-size:var(--type-caption);flex:none;font-weight:800}.example-step__body[data-astro-cid-vdbvx2hh]{min-width:0;max-width:100%;margin-top:.75rem}.example-step__body[data-astro-cid-vdbvx2hh] .accessible-math{max-width:100%}.example-step__body[data-astro-cid-vdbvx2hh] .accessible-math--display{display:block;overflow:auto hidden}.example-step--routine[data-astro-cid-vdbvx2hh]{padding-block:.2rem}.example-step--routine[data-astro-cid-vdbvx2hh] .example-layer__label,.example-step--result[data-astro-cid-vdbvx2hh] .example-layer__label--working{display:none}.example-step--routine[data-astro-cid-vdbvx2hh] .example-layer,.example-step--result[data-astro-cid-vdbvx2hh] .example-layer--working{grid-template-columns:minmax(0,1fr);margin-top:.45rem}.example-step--result[data-astro-cid-vdbvx2hh] .example-step__header[data-astro-cid-vdbvx2hh] .example-step__title[data-astro-cid-vdbvx2hh]{color:var(--accent-700)}.example-step--result[data-astro-cid-vdbvx2hh] .example-step__body[data-astro-cid-vdbvx2hh]{margin-top:.35rem}@container example-solution (width<=34rem){.example-step[data-astro-cid-vdbvx2hh]{padding-left:0}.example-step__header[data-astro-cid-vdbvx2hh]{padding-left:2.75rem}.example-step[data-astro-cid-vdbvx2hh]:before{width:1.75rem;height:1.75rem}.example-step__body[data-astro-cid-vdbvx2hh] .example-layer{grid-template-columns:minmax(0,1fr)}}@media print{.example-step[data-astro-cid-vdbvx2hh]:before{top:0}}.example-layer[data-astro-cid-kr4rjh44]{grid-template-columns:4.75rem minmax(0,1fr);align-items:start;gap:.35rem .75rem;display:grid}.example-layer[data-astro-cid-kr4rjh44]+.example-layer[data-astro-cid-kr4rjh44]{margin-top:.65rem}.example-layer__label[data-astro-cid-kr4rjh44]{color:var(--ink-600);font-family:var(--font-ui,var(--font-body));font-size:var(--type-caption);margin:0 0 .2rem;font-weight:650}.example-layer[data-astro-cid-kr4rjh44]>div[data-astro-cid-kr4rjh44]{min-width:0}.example-layer[data-astro-cid-kr4rjh44]>div>:first-child{margin-top:0}.example-layer[data-astro-cid-kr4rjh44]>div>:last-child{margin-bottom:0}.example-layer[data-astro-cid-nsbej7pd]{grid-template-columns:4.75rem minmax(0,1fr);align-items:start;gap:.35rem .75rem;margin-top:.65rem;display:grid}.example-layer__label[data-astro-cid-nsbej7pd]{color:var(--ink-600);font-family:var(--font-ui,var(--font-body));font-size:var(--type-caption);margin:0 0 .2rem;font-weight:650}.example-layer[data-astro-cid-nsbej7pd]>div[data-astro-cid-nsbej7pd]{min-width:0}.example-layer[data-astro-cid-nsbej7pd]>div>:first-child{margin-top:0}.example-layer[data-astro-cid-nsbej7pd]>div>:last-child{margin-bottom:0}.example-layer[data-astro-cid-c56m22f2]{grid-template-columns:4.75rem minmax(0,1fr);align-items:start;gap:.35rem .75rem;margin-top:.65rem;display:grid}.example-layer__label[data-astro-cid-c56m22f2]{color:var(--ink-600);font-family:var(--font-ui,var(--font-body));font-size:var(--type-caption);margin:0 0 .2rem;font-weight:650}.example-layer__label--answer[data-astro-cid-c56m22f2]{display:none}.example-layer[data-astro-cid-c56m22f2]>div[data-astro-cid-c56m22f2]{min-width:0}.example-layer[data-astro-cid-c56m22f2]>div>:first-child{margin-top:0}.example-layer[data-astro-cid-c56m22f2]>div>:last-child{margin-bottom:0}p[data-astro-cid-4rmbf57c][class$=__label]{align-items:center;gap:var(--space-1);display:flex}p[data-astro-cid-4rmbf57c][class$=__label] svg{flex:none}.example-mistake[data-astro-cid-4rmbf57c]{border-left:.25rem solid var(--warning-700);background:var(--warning-100);padding:.9rem 1rem}.example-mistake__label[data-astro-cid-4rmbf57c]{color:var(--ink-900);font-family:var(--font-ui,var(--font-body));font-size:var(--type-caption);margin:0 0 .3rem;font-weight:650}.example-mistake[data-astro-cid-4rmbf57c]>div>:first-child{margin-top:0}.example-mistake[data-astro-cid-4rmbf57c]>div>:last-child{margin-bottom:0}@media print{.example-mistake[data-astro-cid-4rmbf57c]{break-inside:avoid}.example-mistake__label[data-astro-cid-4rmbf57c]{break-after:avoid}}p[data-astro-cid-c5jnrjxm][class$=__label]{align-items:center;gap:var(--space-1);display:flex}p[data-astro-cid-c5jnrjxm][class$=__label] svg{flex:none}.example-check[data-astro-cid-c5jnrjxm]{border-left:.25rem solid var(--accent-600);background:var(--surface-subtle);padding:.9rem 1rem}.example-check__label[data-astro-cid-c5jnrjxm]{color:var(--ink-900);font-family:var(--font-ui,var(--font-body));font-size:var(--type-caption);margin:0 0 .3rem;font-weight:650}.example-check[data-astro-cid-c5jnrjxm]>div>:first-child{margin-top:0}.example-check[data-astro-cid-c5jnrjxm]>div>:last-child{margin-bottom:0}@media print{.example-check[data-astro-cid-c5jnrjxm]{break-inside:avoid}}p[data-astro-cid-gfshzyg5][class$=__label]{align-items:center;gap:var(--space-1);display:flex}p[data-astro-cid-gfshzyg5][class$=__label] svg{flex:none}.example-next-step[data-astro-cid-gfshzyg5]{border-top:1px solid var(--line-200);padding-top:.9rem}.example-next-step__label[data-astro-cid-gfshzyg5]{color:var(--ink-600);font-family:var(--font-ui,var(--font-body));font-size:var(--type-caption);margin:0 0 .3rem;font-weight:650}.example-next-step[data-astro-cid-gfshzyg5]>div>:first-child{margin-top:0}.example-next-step[data-astro-cid-gfshzyg5]>div>:last-child{margin-bottom:0}.example-response-field[data-astro-cid-jgufbtnb]{color:var(--ink-800);font-family:var(--font-ui,var(--font-body));gap:.35rem;margin-block-end:var(--space-3,1rem);font-weight:700;display:grid}.example-response-field__unit[data-astro-cid-jgufbtnb]{color:var(--ink-600);font-weight:600}.example-response-field[data-astro-cid-jgufbtnb] input[data-astro-cid-jgufbtnb],.example-response-field[data-astro-cid-jgufbtnb] textarea[data-astro-cid-jgufbtnb]{box-sizing:border-box;border:1px solid var(--control-boundary);border-radius:var(--radius-control);width:100%;min-height:2.75rem;color:var(--ink-900);background:var(--paper-0);font:400 var(--type-control)/var(--leading-ui) var(--font-ui);padding:.65rem .75rem}.example-response-field[data-astro-cid-jgufbtnb] textarea[data-astro-cid-jgufbtnb]{resize:vertical}.worked-example-v2--exam-paper .example-response-field[data-astro-cid-jgufbtnb] textarea[data-astro-cid-jgufbtnb]{background-color:#0000;background-image:repeating-linear-gradient(to bottom, transparent 0, transparent calc(1.8em - 1px), var(--line-300) calc(1.8em - 1px), var(--line-300) 1.8em);border:0;border-radius:0;min-height:11rem;padding:.2rem .35rem;line-height:1.8}.example-response-field[data-astro-cid-jgufbtnb] input[data-astro-cid-jgufbtnb]:focus-visible,.example-response-field[data-astro-cid-jgufbtnb] textarea[data-astro-cid-jgufbtnb]:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset);border-color:var(--accent-700)}@media print{.example-response-field[data-astro-cid-jgufbtnb]{display:none}}