@keyframes _si{from{opacity:0}to{opacity:1}}

.legacy-content .lesson-header .kicker {color:var(--al)}.legacy-content .l-callout b {color:var(--al)}.legacy-content .lat-box {background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-card);overflow:hidden}.legacy-content .lat-stage {background:linear-gradient(to bottom,#fdf6fa,#fcf1f7);padding:10px 6px 4px}.legacy-content .lat-stage svg {display:block;width:100%;height:auto}.legacy-content .lat-node rect {fill:#fff;stroke:rgba(0,0,0,.14);stroke-width:1.5;rx:9;transition:fill .3s,stroke .3s}.legacy-content .lat-node text {font-size:14px;font-weight:800;fill:var(--surface-soft);font-family:inherit}.legacy-content .lat-node .score-tag {font-size:10px;font-weight:800;fill:#6b7280;opacity:0;transition:opacity .3s}.legacy-content .lat-node.lit-red rect {stroke:#dc2626;stroke-width:2.5;fill:var(--muted)}.legacy-content .lat-node.lit-blue rect {stroke:#2563eb;stroke-width:2.5;fill:var(--muted)}.legacy-content .lat-node.lit-win rect {stroke:#1d4ed8;stroke-width:3;fill:var(--muted)}.legacy-content .lat-node.dimmed rect {stroke:rgba(0,0,0,.08);fill:var(--muted)}.legacy-content .lat-node.dimmed text {fill:var(--muted)}.legacy-content .lat-node .score-tag.show {opacity:1}.legacy-content .lat-edge {stroke:var(--line);stroke-opacity:.07;stroke-width:1.5;fill:none;transition:stroke .3s,stroke-opacity .3s,stroke-width .3s}.legacy-content .lat-edge.lit-red {stroke:#dc2626;stroke-opacity:.9;stroke-width:3}.legacy-content .lat-edge.lit-blue {stroke:#2563eb;stroke-opacity:.85;stroke-width:3}.legacy-content .lat-edge.lit-win {stroke:#1d4ed8;stroke-opacity:1;stroke-width:4.5}.legacy-content .lat-edge.lit-gray {stroke:var(--muted);stroke-opacity:.5;stroke-width:2;stroke-dasharray:5 4}.legacy-content .lat-edge.lit-red-dash {stroke:#dc2626;stroke-opacity:.55;stroke-width:2.5;stroke-dasharray:6 5}.legacy-content .lat-collabel {font-size:10.5px;font-weight:800;fill:#9d174d;opacity:.65}.legacy-content .lat-plabel {font-size:10.5px;font-weight:800;fill:#6b7280}.legacy-content .lat-controls {display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:14px 18px;border-top:1px solid var(--border)}.legacy-content .btn-al {background:var(--al);color:#fff;border:none;padding:9px 20px;border-radius:999px;font-size:13.5px;font-weight:800;cursor:pointer;font-family:inherit;transition:filter .15s,transform .15s}.legacy-content .btn-al:hover:not(:disabled) {filter:brightness(1.08);transform:translateY(-1px)}.legacy-content .btn-al:disabled {background:#c4c8cf;cursor:not-allowed}.legacy-content .btn-al.red {background:#dc2626}.legacy-content .btn-al.blue {background:#2563eb}.legacy-content .btn-al.ghost {background:transparent;color:var(--al);border:1.5px solid var(--al-line)}.legacy-content .btn-al.ghost:hover:not(:disabled) {background:var(--al-soft);filter:none}.legacy-content .lat-status {font-size:12.5px;color:var(--sub);font-weight:600;flex-basis:100%;margin-top:2px}.legacy-content .lat-panel {border-top:1px dashed var(--border);padding:14px 18px;display:flex;flex-direction:column;gap:6px;min-height:70px}.legacy-content .lp-title {font-size:11.5px;font-weight:800;color:var(--sub);letter-spacing:.4px}.legacy-content .lp-row {display:flex;align-items:center;gap:9px;font-size:13px;line-height:1.6}.legacy-content .lp-row .lp-sent {color:var(--text);font-weight:600}.legacy-content .lp-row .lp-score {font-variant-numeric:tabular-nums;font-weight:900;font-size:13px;margin-left:auto;flex-shrink:0}.legacy-content .lp-row.kept .lp-score {color:#2563eb}.legacy-content .lp-row.pruned {opacity:.5}.legacy-content .lp-row.pruned .lp-sent {text-decoration:line-through;color:var(--sub);font-weight:500}.legacy-content .lp-row.pruned .lp-score {color:var(--muted)}.legacy-content .lp-row.winner .lp-score {color:#1d4ed8;font-size:15px}.legacy-content .lp-row.winner .lp-sent {color:#1d4ed8;font-weight:800}.legacy-content .lp-row .lp-mark {flex-shrink:0;font-size:11px;font-weight:800;padding:1px 8px;border-radius:99px}.legacy-content .lp-row.winner .lp-mark {background:#dbeafe;color:#1d4ed8}.legacy-content .lp-row.greedy-mark .lp-mark {background:#fef2f2;color:#dc2626}.legacy-content .lat-meters {display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:0 18px 16px}.legacy-content .meter-card {border:1.5px solid var(--border);border-radius:var(--radius-sm);padding:11px 14px}.legacy-content .meter-card h5 {font-size:11.5px;font-weight:800;color:var(--sub);margin-bottom:4px}.legacy-content .meter-card .m-nums {display:flex;align-items:baseline;gap:12px}.legacy-content .meter-card .m-score {font-size:19px;font-weight:900;font-variant-numeric:tabular-nums;color:var(--text)}.legacy-content .meter-card .m-evals {font-size:11.5px;font-weight:700;color:var(--sub);font-variant-numeric:tabular-nums}.legacy-content .meter-card.done-red .m-score {color:#dc2626}.legacy-content .meter-card.done-blue .m-score {color:#2563eb}.legacy-content .meter-card.done-win .m-score {color:#1d4ed8}.legacy-content .bs-grid {display:grid;grid-template-columns:1fr 1fr;gap:14px}.legacy-content .bs-card {background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-card)}.legacy-content .bs-card .bsc-icon {font-size:24px;margin-bottom:8px}.legacy-content .bs-card h4 {font-size:15px;font-weight:800;color:var(--text);margin-bottom:6px}.legacy-content .bs-card p {font-size:13px;color:var(--sub);line-height:1.8}.legacy-content .bs-card p b {color:var(--text)}.legacy-content .takeaway-box {background:linear-gradient(135deg,#fdf2f8,#fce7f3);border:1.5px solid #fbcfe8;border-radius:var(--radius);padding:24px 28px;margin-top:36px}.legacy-content .takeaway-box h3 {font-size:17px;font-weight:800;color:#9d174d;margin-bottom:10px}.legacy-content .takeaway-box ul {list-style:none;padding:0;margin:0}.legacy-content .takeaway-box li {font-size:14.5px;color:#831843;line-height:1.8;padding:4px 0 4px 22px;position:relative}.legacy-content .takeaway-box li::before {content:'';position:absolute;left:0;top:13px;width:8px;height:8px;border-radius:50%;background:#db2777}@media (max-width:768px){.legacy-content .bs-grid {grid-template-columns:1fr}.legacy-content .lat-meters {grid-template-columns:1fr}.legacy-content .lp-row {font-size:12px;flex-wrap:wrap}.legacy-content .lp-row .lp-score {margin-left:0}}

.legacy-content .xa-tldr {margin:18px 0 4px;padding:14px 18px;background:rgba(0,102,255,0.04);border:1px solid rgba(0,102,255,0.16);border-radius:10px}.legacy-content .xa-tldr .xa-tldr-tag {display:block;font-size:11px;font-weight:800;letter-spacing:1px;color:var(--accent,#0066ff);margin-bottom:6px}.legacy-content .xa-tldr p {margin:0;font-size:15px;line-height:1.8;color:var(--text,#1f2937)}