.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);border-block-start:1px solid var(--divider-quiet);padding-block-start:var(--space-4)}.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(--text-secondary);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] 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0}}.example-prompt__label[data-astro-cid-6nz6gpvc]{align-items:center;gap:var(--space-1);margin:0 0 var(--space-2);color:var(--text-secondary);font:650 var(--type-caption)/var(--leading-ui) var(--font-ui);display:flex}.example-prompt__body[data-astro-cid-6nz6gpvc]{line-height:var(--leading-prose,1.65)}.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 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example-solution (width<=34rem){.example-solution__walkthrough-actions[data-astro-cid-2yj5y4us]{gap:var(--space-1)}.example-solution__walkthrough-actions[data-astro-cid-2yj5y4us]>button[data-astro-cid-2yj5y4us]{flex:1 1 calc(50% - var(--space-1));min-inline-size:0;padding-inline:var(--space-1);white-space:normal}.example-solution__walkthrough-actions[data-astro-cid-2yj5y4us]>[data-astro-cid-2yj5y4us][data-example-walkthrough=all]{flex-basis:100%}}@media print{.example-solution__steps[data-astro-cid-2yj5y4us]>.example-step:last-child .example-layer--working{background:0 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var(--font-ui);place-items:center;display:grid;position:absolute;top:0;left:0}.example-step[data-astro-cid-vdbvx2hh][value]:before{content:attr(value)}.example-step__header[data-astro-cid-vdbvx2hh]{min-width:0;max-width:100%;justify-content:space-between;gap:var(--space-2);align-items:center;min-block-size:2rem;padding-inline-start:2.75rem;display:flex}.example-step__header[data-astro-cid-vdbvx2hh] .example-step__title[data-astro-cid-vdbvx2hh]{color:var(--text-primary);font:650 clamp(1.05rem, 2cqi, 1.2rem)/1.4 var(--font-heading);margin:0;scroll-margin-block-start:var(--space-8)}.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-block-start:var(--space-3)}.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:0}.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>=38rem){.example-step__body[data-astro-cid-vdbvx2hh]:has(>.example-layer--what):has(>.example-layer--why){gap:var(--space-3) 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var(--font-ui)}.example-layer>div{min-inline-size:0;line-height:var(--leading-prose,1.65)}.example-layer>div>:first-child{margin-block-start:0}.example-layer>div>:last-child{margin-block-end:0}.example-layer--working{border-radius:var(--radius-control);background:var(--surface-subtle);margin-block-start:var(--space-3);padding:clamp(1rem,3cqi,1.5rem)}.example-layer--working>div{overflow-wrap:anywhere}.example-layer__label--answer{display:none}@media print{.example-layer--working{background:0 0;padding: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]{padding:var(--space-3);border-radius:var(--radius-control);background:var(--warning-100)}.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]{align-items:start;gap:var(--space-2) var(--space-3);grid-template-columns:max-content minmax(0,1fr);display:grid}.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 (width<=40rem){.example-check[data-astro-cid-c5jnrjxm]{grid-template-columns:minmax(0,1fr)}}@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}.example-response-field__sentence[data-astro-cid-jgufbtnb]{border:0;min-inline-size:0;margin:0;padding:0}.example-response-field__terms[data-astro-cid-jgufbtnb]{align-items:start;gap:var(--space-1,.5rem);padding-block:var(--space-1,.5rem);flex-wrap:wrap;display:flex}.example-response-field__slot[data-astro-cid-jgufbtnb]{text-align:center;gap:.25rem;inline-size:4rem;display:grid}.example-response-field__slot[data-astro-cid-jgufbtnb] input[data-astro-cid-jgufbtnb]{text-align:center;border-width:2px;min-block-size:3.5rem;padding:.35rem;font-size:1.5rem;font-weight:700}.example-response-field__slot[data-astro-cid-jgufbtnb] span[data-astro-cid-jgufbtnb]{font-size:var(--type-meta,.875rem);overflow-wrap:anywhere;font-weight:500}.example-response-field__fixed[data-astro-cid-jgufbtnb]{place-items:center;min-block-size:3.5rem;font-size:1.5rem;display:grid}.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}}