.lesson-nav[data-astro-cid-3wzbmxkj]{display:grid;gap:var(--sp-3);margin-top:var(--sp-8);padding-top:var(--sp-5);border-top:1px solid var(--c-border)}@media(min-width:480px){.lesson-nav[data-astro-cid-3wzbmxkj]{grid-template-columns:1fr 1fr;gap:var(--sp-4)}}.lesson-nav__cell[data-astro-cid-3wzbmxkj]{min-width:0}.lesson-nav__cell--next[data-astro-cid-3wzbmxkj]{text-align:right}.lesson-nav[data-astro-cid-3wzbmxkj] a[data-astro-cid-3wzbmxkj]{display:block;padding:var(--sp-3) var(--sp-4);border:1px solid var(--c-border);border-radius:var(--radius-md);background:var(--c-surface);text-decoration:none;color:var(--c-text);transition:border-color .12s,background .12s}.lesson-nav[data-astro-cid-3wzbmxkj] a[data-astro-cid-3wzbmxkj]:hover{border-color:var(--c-accent);background:var(--c-accent-soft)}.lesson-nav__dir[data-astro-cid-3wzbmxkj]{display:block;font-size:var(--fs-xs);color:var(--c-text-muted);margin-bottom:var(--sp-1)}.lesson-nav__title[data-astro-cid-3wzbmxkj]{display:block;font-weight:600}.lesson-nav-mobile[data-astro-cid-3wzbmxkj]{display:none}@media(max-width:767px){.lesson-nav[data-astro-cid-3wzbmxkj]{display:none}.lesson-nav-mobile[data-astro-cid-3wzbmxkj]{display:block;position:fixed;left:0;right:0;bottom:calc(var(--tabbar-height) + var(--sab));z-index:25;padding:var(--sp-3) var(--sp-3) calc(var(--sp-3) + 2px);background:color-mix(in oklab,var(--c-surface) 92%,transparent);border-top:1px solid var(--c-border);backdrop-filter:saturate(1.2) blur(8px)}.lesson-nav-mobile__inner[data-astro-cid-3wzbmxkj]{display:flex;gap:var(--sp-3);align-items:stretch;max-width:40rem;margin:0 auto}.lesson-nav-mobile__prev[data-astro-cid-3wzbmxkj],.lesson-nav-mobile__next[data-astro-cid-3wzbmxkj]{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 var(--sp-4);border-radius:var(--r-md);font-family:var(--font-ui);font-weight:700;font-size:1rem;text-decoration:none;transition:background .12s,border-color .12s,transform 80ms}.lesson-nav-mobile__prev[data-astro-cid-3wzbmxkj]{flex:0 0 auto;min-width:48px;padding:0;font-size:1.4rem;line-height:1;background:var(--c-surface);color:var(--c-text);border:1px solid var(--c-border)}.lesson-nav-mobile__prev[data-astro-cid-3wzbmxkj]:hover{background:var(--c-accent-soft)}.lesson-nav-mobile__prev--disabled[data-astro-cid-3wzbmxkj]{opacity:.35;pointer-events:none}.lesson-nav-mobile__next[data-astro-cid-3wzbmxkj]{flex:1 1 auto;background:var(--c-accent);color:#fff;border:0;box-shadow:var(--shadow-md)}:root[data-theme=dusk] .lesson-nav-mobile__next[data-astro-cid-3wzbmxkj]{color:#1a1611}.lesson-nav-mobile__next[data-astro-cid-3wzbmxkj]:active{transform:scale(.98)}.lesson-nav-mobile__next--disabled[data-astro-cid-3wzbmxkj]{background:var(--c-surface-alt);color:var(--c-text-muted);pointer-events:none}.lesson{padding-bottom:calc(72px + var(--sp-3))}}.lesson-actions[data-astro-cid-jmv5ruaj]{display:flex;flex-wrap:wrap;gap:var(--sp-3);margin-top:var(--sp-5);padding:var(--sp-3);background:var(--c-surface-alt);border-radius:var(--radius-md);font-size:var(--fs-sm)}.lesson-actions__item[data-astro-cid-jmv5ruaj],.lesson-actions__fav[data-astro-cid-jmv5ruaj],.lesson-actions__print[data-astro-cid-jmv5ruaj]{display:inline-flex;align-items:center;gap:var(--sp-2);padding:var(--sp-2) var(--sp-3);border:1px solid var(--c-border);border-radius:var(--radius-sm);background:var(--c-surface);color:var(--c-text);cursor:pointer}.lesson-actions__item[data-astro-cid-jmv5ruaj] input[data-astro-cid-jmv5ruaj]{margin:0}.lesson-actions__done[data-astro-cid-jmv5ruaj]:checked+span[data-astro-cid-jmv5ruaj]{color:#4a7a3a;font-weight:600}.lesson-actions__fav[data-astro-cid-jmv5ruaj][aria-pressed=true]{background:var(--c-accent-soft);border-color:var(--c-accent);color:var(--c-accent)}.lesson-actions__fav[data-astro-cid-jmv5ruaj][aria-pressed=true] .lesson-actions__fav-icon[data-astro-cid-jmv5ruaj]:before{content:"★"}.lesson-actions__fav-icon[data-astro-cid-jmv5ruaj]:before{content:"☆"}.lesson__meta[data-astro-cid-ypr3zt3p]{font-size:var(--fs-sm);color:var(--c-text-muted);margin:0}.lesson__header[data-astro-cid-ypr3zt3p]{margin-bottom:var(--sp-5)}.lesson__header[data-astro-cid-ypr3zt3p] h1[data-astro-cid-ypr3zt3p]{margin-top:var(--sp-3)}.lesson__topline[data-astro-cid-ypr3zt3p]{display:flex;align-items:center;gap:var(--sp-3)}.lesson__progress[data-astro-cid-ypr3zt3p]{flex:1;height:6px;background:var(--c-surface-alt);border-radius:var(--r-pill);overflow:hidden;max-width:12rem}.lesson__progress[data-astro-cid-ypr3zt3p]>i[data-astro-cid-ypr3zt3p]{display:block;height:100%;background:var(--c-accent);border-radius:var(--r-pill);transition:width .24s ease-out}.lesson-banner[data-astro-cid-ypr3zt3p]{margin-bottom:var(--sp-4);padding:var(--sp-3) var(--sp-4);border-left:4px solid #d49a2a;background:#fdf3dd;border-radius:0 var(--radius-md) var(--radius-md) 0;font-size:var(--fs-sm)}:root[data-scheme=dark] .lesson-banner[data-astro-cid-ypr3zt3p]{background:#3d3420;color:#f3e6c7}@media(max-width:767px){.lesson__header[data-astro-cid-ypr3zt3p]{margin-bottom:var(--sp-4)}.lesson__header[data-astro-cid-ypr3zt3p] h1[data-astro-cid-ypr3zt3p]{font-family:var(--font-head, var(--font-serif));font-size:1.8rem;line-height:1.15;letter-spacing:-.02em;margin-top:var(--sp-2)}.lesson__topline[data-astro-cid-ypr3zt3p]{gap:var(--sp-2)}.lesson__progress[data-astro-cid-ypr3zt3p]{max-width:8rem}}