.ai-workbook{min-width:0}
.ai-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:64px;align-items:center}
.ai-intro-copy{min-width:0}
.ai-scope{max-width:520px;margin-top:20px;margin-bottom:0;color:var(--muted);font-size:13px}
.ai-path{padding:30px;box-shadow:var(--shadow-panel);background:linear-gradient(160deg,var(--panel),var(--groove-soft))}
.ai-path-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}
.ai-star{color:var(--muted);font-size:24px}
.ai-path h2{font-size:28px;margin-bottom:12px}
.ai-path-list{margin:24px 0 0}
.ai-path-list>div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:16px;padding:16px 0;border-top:1px solid var(--line)}
.ai-path-list dt{color:var(--accent-dark);font-weight:700}
.ai-path-list dd{margin:0;min-width:0}
.ai-path .callout{margin-bottom:0}
.ai-chapter{border-top:1px solid var(--line)}
.ai-reading-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:48px;align-items:start}
.ai-reading-grid .prose h3:first-child{margin-top:0}
.ai-margin-note{background:var(--groove-soft)}
.ai-margin-note p{color:var(--muted)}
.ai-margin-note p:last-child{margin-bottom:0}
.ai-dev-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.ai-dev-grid .card{background:linear-gradient(180deg,var(--panel),var(--groove-soft))}
.ai-dev-grid p{line-height:1.85;color:var(--muted)}
.ai-dev-grid p:last-child{margin-bottom:0}
.ai-followup{margin-top:32px}
.ai-help-link{margin-top:24px;margin-bottom:0;color:var(--muted)}
.ai-next-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}
.ai-next-links a{text-decoration:none}
.ai-next-links a:hover{border-color:var(--accent)}
.ai-next-links strong{display:block;margin-bottom:10px;color:var(--accent-dark);font-size:18px}
.ai-next-links span{display:block;color:var(--muted)}
@media(max-width:1000px){
  .ai-intro{gap:32px}
  .ai-reading-grid{gap:24px}
  .ai-dev-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .ai-intro{grid-template-columns:minmax(0,1fr)}
  .ai-reading-grid{grid-template-columns:minmax(0,1fr)}
  .ai-path{padding:24px}
  .ai-next-links{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:640px){
  .ai-path{padding:20px}
  .ai-path-list>div{grid-template-columns:minmax(0,1fr);gap:6px}
}