:root{--bg: #0a0d12;--panel: #141821;--panel-2: #1c2230;--panel-hi: #232a3a;--text: #e8ecf3;--muted: #8b95a7;--muted-2: #6b7587;--border: #2a3142;--border-soft: #1f2533;--accent: #6aa6ff;--accent-soft: rgba(106, 166, 255, .15);--good: #4ade80;--bad: #f87171;--warn: #fbbf24}*{box-sizing:border-box}html,body{margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,Roboto,sans-serif;background:radial-gradient(1200px 600px at 50% -200px,rgba(106,166,255,.08),transparent 60%),var(--bg);color:var(--text);line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}em{font-style:normal;color:var(--accent);font-weight:500}code{font-family:SF Mono,Menlo,Consolas,monospace;font-size:.9em;background:var(--panel-2);padding:1px 6px;border-radius:4px;border:1px solid var(--border-soft)}.page-header{text-align:center;padding:56px 24px 8px;max-width:760px;margin:0 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var(--border)}.toggle-thumb{position:absolute;top:2px;left:2px;width:18px;height:18px;background:var(--muted);border-radius:50%;transition:all .18s cubic-bezier(.2,.8,.4,1)}.toggle input:checked+.toggle-track{background:var(--accent);border-color:var(--accent)}.toggle input:checked+.toggle-track .toggle-thumb{left:22px;background:#fff}.toggle-label{font-weight:500}.walkthrough{max-width:1240px;margin:0 auto 24px;padding:14px 22px;background:#6aa6ff0d;border:1px solid rgba(106,166,255,.2);border-radius:12px;font-size:14px}.walkthrough ol{margin:8px 0 0;padding-left:22px;color:var(--muted)}.walkthrough ol li{margin-bottom:2px}.walkthrough strong{color:var(--text)}.main-grid{display:grid;grid-template-columns:1.05fr .95fr 1fr;gap:16px;max-width:1240px;margin:0 auto;padding:0 24px 24px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px 18px 16px;display:flex;flex-direction:column;min-height:540px;box-shadow:0 1px #ffffff08 inset,0 8px 24px 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.seq{color:var(--accent);font-weight:600;font-variant-numeric:tabular-nums}.ledger .who{color:var(--text);font-family:inherit}.ledger .when{color:var(--muted-2);font-variant-numeric:tabular-nums;font-size:11px}.explainer{max-width:1240px;margin:8px auto 72px;padding:24px 28px;background:var(--panel);border:1px solid var(--border);border-radius:14px}.explainer h3{margin:0 0 16px;font-size:18px}.explainer-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:16px}.explainer-col{padding:16px 18px;border-radius:10px;border:1px solid var(--border)}.explainer-bad{background:#f871710d;border-color:#f8717140}.explainer-good{background:#4ade800d;border-color:#4ade8040}.explainer h4{margin:0 0 10px;font-size:14px}.explainer-bad h4 em{color:var(--bad)}.explainer-good h4 em{color:var(--good)}.explainer ul{margin:0;padding-left:18px;color:var(--muted);font-size:13px}.explainer ul li{margin-bottom:6px}.explainer 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