.related-lessons[data-astro-cid-yksnankl]{margin:var(--space-8) 0 0 0;padding-top:var(--space-6);border-top:1px solid var(--color-border)}.related-lessons__header[data-astro-cid-yksnankl]{margin-bottom:var(--space-4)}.related-lessons__title[data-astro-cid-yksnankl]{font-size:var(--text-h3);color:var(--color-text);margin:0}.related-lessons__grid[data-astro-cid-yksnankl]{gap:var(--space-4);grid-template-columns:repeat(auto-fit,minmax(260px,1fr));margin:0;padding:0;list-style:none;display:grid}.related-lessons__card[data-astro-cid-yksnankl]{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);transition:transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-fast) var(--ease-out);overflow:hidden}.related-lessons__card[data-astro-cid-yksnankl]:hover{box-shadow:var(--shadow-md);border-color:var(--color-primary);transform:translateY(-4px)}.related-lessons__link[data-astro-cid-yksnankl]{color:inherit;text-decoration:none;display:block}.related-lessons__image[data-astro-cid-yksnankl]{aspect-ratio:16/9;background:var(--color-container-low);position:relative;overflow:hidden}.related-lessons__image[data-astro-cid-yksnankl] img[data-astro-cid-yksnankl]{object-fit:cover;width:100%;height:100%;transition:opacity var(--duration-base) var(--ease-out);position:absolute;inset:0}.related-lessons__content[data-astro-cid-yksnankl]{padding:var(--space-4)}.related-lessons__kicker[data-astro-cid-yksnankl]{margin-bottom:var(--space-1)}.related-lessons__label[data-astro-cid-yksnankl]{margin:0 0 var(--space-1) 0;font-size:var(--text-body);color:var(--color-text);font-weight:600;line-height:1.3}.related-lessons__desc[data-astro-cid-yksnankl]{font-size:var(--text-body-sm);color:var(--color-text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;line-height:1.6;display:-webkit-box;overflow:hidden}.section-nav[data-astro-cid-sylr3ng3]{z-index:var(--z-sticky);background:color-mix(in srgb, var(--color-cream) 92%, transparent);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border);padding:var(--space-2) 0;margin:0 0 var(--space-5) 0;position:sticky;top:0}.section-nav__label[data-astro-cid-sylr3ng3]{margin:0 0 var(--space-2) 0;letter-spacing:.12em;opacity:.75;font-size:.625rem}.section-nav__list[data-astro-cid-sylr3ng3]{gap:var(--space-2);scrollbar-width:none;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;margin:0;padding:0 0 2px;list-style:none;display:flex;overflow-x:auto}.section-nav__list[data-astro-cid-sylr3ng3]::-webkit-scrollbar{display:none}.section-nav__link[data-astro-cid-sylr3ng3]{white-space:nowrap;border-radius:var(--radius-full);font-size:var(--text-body-sm);color:var(--color-text-muted);transition:color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);border:1px solid #0000;align-items:center;gap:.4em;padding:.35em .75em;font-weight:600;text-decoration:none;display:inline-flex}.section-nav__link[data-astro-cid-sylr3ng3]:hover{color:var(--color-primary);background:var(--color-primary-fixed)}.section-nav__link[data-astro-cid-sylr3ng3]:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.section-nav__dot[data-astro-cid-sylr3ng3]{background:var(--color-border);width:6px;height:6px;transition:background var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);border-radius:50%}.section-nav__link[data-astro-cid-sylr3ng3].is-active{color:var(--color-primary);background:var(--color-primary-fixed);border-color:color-mix(in srgb, var(--color-primary) 25%, transparent)}.section-nav__link[data-astro-cid-sylr3ng3].is-active .section-nav__dot[data-astro-cid-sylr3ng3]{background:var(--color-primary);transform:scale(1.4)}[id][data-section-anchor]{scroll-margin-top:5rem}@media (width<=640px){.section-nav[data-astro-cid-sylr3ng3]{padding:var(--space-1) 0}.section-nav__label[data-astro-cid-sylr3ng3]{display:none}.section-nav__link[data-astro-cid-sylr3ng3]{font-size:var(--text-caption)}}@media (prefers-reduced-motion:reduce){.section-nav__link[data-astro-cid-sylr3ng3],.section-nav__dot[data-astro-cid-sylr3ng3]{transition:none}}