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/* Age presentations keep the same activities and saved course identity. */
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.hw-workspace:not([data-band="primary-3-5"]) .hw-hero h2{font-family:inherit;font-weight:650;color:var(--hw-ink);font-size:clamp(1.65rem,2.4vw,2.3rem)}
.hw-workspace:not([data-band="primary-3-5"]) :is(.hw-eyebrow,.hw-unit-label>strong,.hw-panel-heading .hw-intro){color:var(--hw-ink)}
.hw-workspace:not([data-band="primary-3-5"]) .hw-age{background:#f2f4fa;border-color:#d5dce9}
.hw-workspace:not([data-band="primary-3-5"]) .hw-lead-icon{background:#e3e9f3;color:var(--hw-green)}
.hw-workspace:not([data-band="primary-3-5"]) .hw-road li>button[aria-current]{background:#eef1fa;border-color:var(--hw-green);box-shadow:inset 0 0 0 1px var(--hw-green)}
.hw-workspace:not([data-band="primary-3-5"]) .hw-tabs>button[aria-pressed=true]{background:#edf1fa;border-color:#aebcce;color:var(--hw-ink)}
.hw-workspace:not([data-band="primary-3-5"]) .hw-tabs>button[aria-pressed=true]>span{background:var(--hw-green)}
.hw-workspace:not([data-band="primary-3-5"]) .hw-scene{background:#f0f3fa;border-color:#d5ddea}
.hw-workspace:not([data-band="primary-3-5"]) .hw-scene :is(strong,p){color:#465774}
.hw-workspace:not([data-band="primary-3-5"]) .hw-button:not(.hw-secondary):hover:not(:disabled){background:var(--hw-ink)}

/* Diagrams carry the exercise facts; provenance stays in the source disclosure. */
.hw-example-figure{margin:0 auto 28px;max-width:640px}.hw-example-figure svg{display:block;width:100%;height:auto}.hw-example-figure figcaption{font-size:.9rem;line-height:1.6;text-align:center;margin:10px 12px 0;color:var(--hw-muted)}.hw-read-step{margin-bottom:24px}.hw-read-step h3{font-size:1rem;font-weight:750;color:var(--hw-ink);margin-bottom:7px}.hw-read-step p{margin:0}.hw-read-layout>.hw-scene{align-self:start}.hw-read-layout>.hw-prose{max-width:68ch}

/* Homework guide additions: shared visual language, private component scope. */
.hw-road{grid-template-columns:repeat(3,minmax(0,1fr))}.hw-subject-art{display:block;width:100%;max-width:250px;height:auto;margin:0 auto 12px}.hw-scene{overflow:hidden}.hw-start{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 24px;border:1px solid var(--hw-line);border-radius:17px;background:var(--hw-paper);margin:12px 0 22px}.hw-start>div{flex:1;min-width:0}.hw-start select{display:block;min-height:46px;width:min(100%,430px);margin-top:12px;padding:10px 34px 10px 12px;border:1px solid #bfd0bd;border-radius:10px;color:var(--hw-ink);background:#fff}.hw-start p{margin-top:5px}.hw-support{display:flex;gap:14px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin:16px 0 4px}.hw-editorial{color:var(--hw-muted);font-size:.75rem;font-weight:650}.hw-support>.hw-button{min-height:44px;padding:8px 13px;font-size:.75rem!important}.hw-help{padding:0 2px 18px;font-size:.9rem}.hw-help ol{padding-left:22px;margin:12px 0}.hw-help li{margin:7px 0}.hw-help>.hw-small{margin-top:12px}.hw-library>div{display:flex;gap:17px;flex-wrap:wrap}.hw-library a{display:inline-flex;align-items:center;min-height:44px}.hw-preview+.hw-details{margin-bottom:12px}.hw-feedback[hidden]{display:none}.hw-workspace .hw-scene .hw-subject-art{grid-column:1/-1}.hw-workspace[data-band="middle-1-3"] .hw-hero .hw-studio{filter:saturate(.8)}.hw-workspace[data-band="middle-1-3"] .hw-reading{border-top:4px solid #90aabe}.hw-workspace[data-band="primary-3-5"] .hw-reading{border-top:4px solid #afc28e}.hw-source-list a{display:inline-block;min-height:44px;padding:8px 0}
@media(max-width:780px){.hw-road{grid-template-columns:repeat(3,minmax(0,1fr))}.hw-road li>button{grid-template-columns:1fr;text-align:center;padding:16px 10px}.hw-road .hw-station-icon{grid-row:auto;margin:0 auto 7px}.hw-road strong{padding:0}.hw-scene{display:block;max-width:100%}.hw-scene p{margin:8px 0 15px}.hw-workspace .hw-scene .hw-subject-art{max-width:230px}.hw-header{flex-wrap:wrap}.hw-age{margin-top:0}.hw-start{align-items:stretch;flex-direction:column}.hw-start>.hw-button{align-self:start}}
@media(max-width:540px){.hw-road{grid-template-columns:1fr}.hw-road li>button,.hw-road.hw-preview>li{grid-template-columns:43px minmax(0,1fr);text-align:left;gap:3px 13px;min-height:80px}.hw-road .hw-station-icon{grid-row:1/span 2;margin:0;width:43px;height:43px}.hw-road strong{font-size:.9rem}.hw-road small{font-size:.75rem}.hw-support{align-items:stretch}.hw-start{padding:20px}.hw-start>.hw-button{width:100%}.hw-library>div{gap:20px}.hw-library a{min-height:44px}.hw-subject-art{max-height:180px}.hw-header h1{font-size:2rem}.hw-age{text-align:left}.hw-start select{font-size:1rem}.hw-workspace .hw-classify select{font-size:1rem}}