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a{color:var(--brand-1);text-decoration:underline;text-underline-offset:3px}.prose[data-astro-cid-umin2euj] ul,.prose[data-astro-cid-umin2euj] ol{margin:14px 0;padding-left:26px}.prose[data-astro-cid-umin2euj] li{margin:7px 0}.prose[data-astro-cid-umin2euj] img{border-radius:var(--radius);margin:22px 0;max-width:100%}.prose[data-astro-cid-umin2euj] hr{border:0;border-top:1px solid var(--border);margin:32px 0}.prose[data-astro-cid-umin2euj] blockquote{border-left:3px solid var(--brand-1);padding:6px 18px;margin:20px 0;background:var(--bg-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.prose[data-astro-cid-umin2euj] code{font-size:.9em;background:var(--code-bg);padding:2px 7px;border-radius:6px;border:1px solid var(--border);font-family:var(--font-mono);word-break:break-word}.prose[data-astro-cid-umin2euj] pre{background:var(--code-bg);padding:18px 20px;border-radius:var(--radius);overflow-x:auto;border:1px solid var(--border);margin:22px 0;line-height:1.6}.prose[data-astro-cid-umin2euj] pre code{background:none;padding:0;border:0;font-size:.86rem}.prose[data-astro-cid-umin2euj] table{border-collapse:collapse;margin:22px 0;font-size:.94rem;display:block;overflow-x:auto;width:100%}.prose[data-astro-cid-umin2euj] th,.prose[data-astro-cid-umin2euj] td{border:1px solid var(--border);padding:10px 14px;text-align:left;vertical-align:top}.prose[data-astro-cid-umin2euj] thead th{background:var(--bg-soft);font-weight:600;color:var(--text)}.prose[data-astro-cid-umin2euj] tbody tr:nth-child(2n){background:var(--bg-soft)}.done-box[data-astro-cid-umin2euj]{margin-top:28px;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}.done-box[data-astro-cid-umin2euj] form[data-astro-cid-umin2euj],.done-box[data-astro-cid-umin2euj] .btn[data-astro-cid-umin2euj]{margin:0}.db-done[data-astro-cid-umin2euj]{display:flex;align-items:center;gap:8px;color:#10b981;font-weight:600}.lesson-nav[data-astro-cid-umin2euj]{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:28px}.ln-btn[data-astro-cid-umin2euj]{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:var(--radius);background:var(--bg-elev);border:1px solid var(--border);color:var(--text-soft);transition:border-color .2s,transform .2s var(--ease)}.ln-btn[data-astro-cid-umin2euj]:hover{border-color:var(--brand-1);transform:translateY(-2px)}.ln-btn[data-astro-cid-umin2euj].next{justify-content:flex-end;text-align:right}.ln-btn[data-astro-cid-umin2euj] span[data-astro-cid-umin2euj]{display:flex;flex-direction:column;gap:2px;min-width:0}.ln-btn[data-astro-cid-umin2euj] small[data-astro-cid-umin2euj]{font-family:var(--font-mono);font-size:.7rem;color:var(--text-mute)}.ln-btn[data-astro-cid-umin2euj] b[data-astro-cid-umin2euj]{font-size:.88rem;line-height:1.35;color:var(--text);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}@media(max-width:900px){.lesson-grid[data-astro-cid-umin2euj],.lesson-grid[data-astro-cid-umin2euj].side-collapsed{grid-template-columns:1fr}.lesson-side[data-astro-cid-umin2euj],.lesson-grid[data-astro-cid-umin2euj].side-collapsed .lesson-side[data-astro-cid-umin2euj]{display:flex;position:static;max-height:none;order:2;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}.lesson-main[data-astro-cid-umin2euj]{order:1}.lesson-nav[data-astro-cid-umin2euj]{grid-template-columns:1fr}.side-toggle[data-astro-cid-umin2euj],.side-reopen[data-astro-cid-umin2euj]{display:none}}