:root{--ink:#222;--muted:#666;--line:#e5e7eb;--accent:#2563eb;--soft:#f6f7f9}*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--ink);font:15px/1.6 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}a{color:var(--accent);text-underline-offset:4px}header{max-width:1440px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 32px;border-bottom:1px solid var(--line)}header a{text-decoration:none}.author{font-weight:700}nav{display:flex;gap:24px;font-size:14px}main{max-width:1440px;margin:auto;display:grid;grid-template-columns:minmax(0,1fr) 340px}.stage{min-width:0;border-right:1px solid var(--line);display:flex;flex-direction:column}.intro{padding:28px 32px 0}.eyebrow{font-size:11px;letter-spacing:.1em;color:var(--muted);margin:0 0 12px}h1{font-size:clamp(30px,3.2vw,44px);line-height:1.15;letter-spacing:-.035em;margin:0}h2{font-size:24px;line-height:1.25;letter-spacing:-.025em;margin:0 0 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var(--line);display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0)}#fin-control{margin-top:18px}@media(max-width:850px){main{grid-template-columns:1fr}.stage{border-right:0;border-bottom:1px solid var(--line)}#viewport{height:470px;min-height:360px}.explanation{gap:24px}.interpretation{gap:32px;grid-template-columns:240px 1fr}}@media(max-width:540px){header{padding:20px;align-items:flex-start;flex-direction:column;gap:12px}nav{font-size:12px;gap:20px}.intro{padding:24px 20px 0}.intro>p:last-child{font-size:13px;max-width:300px}#viewport{height:340px;min-height:300px}.stage-footer{padding:0 20px 20px}.view-tools{gap:5px}.view-tools button{font-size:11px;padding:8px}aside{padding:28px 20px}.explanation{padding:28px 20px;grid-template-columns:1fr;gap:28px}.interpretation{padding:32px 20px;grid-template-columns:1fr;gap:28px}.interpretation 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#viewport{flex:none;height:560px}.stage{align-self:start}@media(max-width:850px){#viewport{height:470px}}@media(max-width:540px){#viewport{height:340px}}

.agent-skill{grid-column:1/-1;padding:40px 32px;border-bottom:1px solid var(--line);max-width:850px;width:100%;margin:auto;scroll-margin-top:24px}.agent-skill .download{display:inline-block}.agent-skill blockquote{border-left:3px solid var(--accent);margin:24px 0;padding:12px 20px;background:var(--soft)}.download.primary{color:#fff}.agent-skill h3{font-size:18px}nav{flex-wrap:wrap}@media(max-width:540px){.agent-skill{padding:32px 20px}}