@keyframes _si{to{opacity:1}}

.legacy-content .objective {display:grid;grid-template-columns:30px 1fr;gap:13px;padding:18px 20px;border:1px solid rgba(217,149,22,.28);border-radius:14px;background:linear-gradient(135deg,var(--amber-soft),transparent);margin:18px 0 28px}.legacy-content .objective svg {color:var(--accent)}.legacy-content .objective b {display:block;color:var(--accent);margin-bottom:4px}.legacy-content .objective span {font-size:14px;line-height:1.7}.legacy-content .flow {background:var(--surface-soft);border:1px solid #5b4116;border-radius:18px;padding:19px;box-shadow:0 18px 50px rgba(75,48,5,.18)}.legacy-content .flow svg {display:block;width:100%;height:auto}.legacy-content .caption {text-align:center;color:var(--muted);font-size:12px;margin-top:8px}.legacy-content .families {display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.legacy-content .family {position:relative;background:var(--card);border:1px solid var(--border);border-radius:13px;padding:17px;overflow:hidden;box-shadow:var(--shadow-card)}.legacy-content .family:after {content:"";position:absolute;width:70px;height:70px;border:1px solid rgba(217,149,22,.15);border-radius:50%;right:-30px;top:-30px}.legacy-content .family code {font-weight:800;color:var(--accent)}.legacy-content .family p {font-size:12px;line-height:1.65;color:var(--sub);margin:7px 0 0}.legacy-content .pair {display:grid;grid-template-columns:1fr 1fr;gap:16px}.legacy-content .tool {background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px;box-shadow:var(--shadow-card)}.legacy-content .tool h3 {margin:0 0 8px;font:800 16px ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--text)}.legacy-content .tool p {margin:0;font-size:13px;line-height:1.72;color:var(--sub)}.legacy-content .params {display:grid;gap:7px;margin-top:12px}.legacy-content .param {display:flex;justify-content:space-between;gap:12px;background:var(--bg);border-radius:7px;padding:8px 10px;font-size:11px}.legacy-content .param code {color:var(--accent);font-weight:800}.legacy-content .param span {color:var(--sub)}.legacy-content .source {background:var(--surface-soft);border:1px solid #4d3816;border-radius:14px;overflow:hidden}.legacy-content .source-head {padding:10px 16px;background:var(--surface-soft);color:var(--muted);font:12px ui-monospace,SFMono-Regular,Menlo,monospace}.legacy-content .source pre {padding:17px;margin:0;overflow:auto}.legacy-content .source code {color:var(--muted);font:12px/1.65 ui-monospace,SFMono-Regular,Menlo,monospace}.legacy-content .kw {color:#f4b942}.legacy-content .fn {color:#e8a92f}.legacy-content .ty {color:var(--muted)}.legacy-content .cm {color:#968970}.legacy-content .exercise {display:grid;grid-template-columns:48px 1fr;gap:15px;background:#fff8e9;border:1px solid #ecd198;border-radius:14px;padding:19px}.legacy-content .exercise-num {height:48px;border-radius:12px;background:var(--accent);display:grid;place-items:center;color:#fff;font-weight:900}.legacy-content .exercise h3 {margin:0 0 6px;font-size:16px}.legacy-content .exercise p {margin:0;color:var(--sub);font-size:13px;line-height:1.72}.legacy-content .snapshot {margin-top:13px;padding:13px 16px;border:1px solid var(--border);border-radius:8px;background:var(--bg);font-size:12px;line-height:1.7;color:var(--sub)}.legacy-content .snapshot code {color:var(--text)}.legacy-content .takeaway {margin-top:22px;padding:19px 22px;border-radius:14px;background:var(--surface-soft);color:var(--muted);display:flex;gap:13px;line-height:1.75}.legacy-content .takeaway svg {color:var(--gold);flex:0 0 auto}.legacy-content .takeaway b {color:var(--gold)}@media(max-width:760px){.legacy-content .families {grid-template-columns:1fr 1fr}.legacy-content .pair {grid-template-columns:1fr}.legacy-content .flow {padding:9px}}@media(max-width:480px){.legacy-content .families {grid-template-columns:1fr}.legacy-content .objective {grid-template-columns:1fr}}