.prep-chapters{display:grid;grid-template-columns:minmax(210px,270px) minmax(0,1fr);gap:1rem;align-items:start}
.prep-chapter-index{position:sticky;top:1rem;max-height:85vh;overflow:auto;min-width:0}
.prep-chapter-index-items{display:grid;gap:.4rem;margin-top:1rem}
.prep-chapter-choice{display:flex;align-items:center;justify-content:space-between;text-align:left;gap:.6rem;width:100%;padding:.75rem;border:1px solid var(--line,#38404d);background:transparent;color:inherit;border-radius:.65rem;cursor:pointer}
.prep-chapter-choice[aria-current="true"]{border-color:var(--accent,#9876db);background:rgba(140,100,220,.13)}
.prep-chapter-choice small{display:block;opacity:.8;margin-top:.2rem}
.prep-chapter-content{min-width:0}.prep-chapter-panel[hidden],.prep-tab-panel[hidden]{display:none!important}
.prep-chapter-heading{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.prep-chapter-tabs{display:flex;gap:.45rem;overflow-x:auto;padding:.8rem 0;margin-bottom:1rem}
.prep-chapter-tabs [aria-selected="true"]{border-color:var(--accent,#9876db);background:rgba(140,100,220,.18)}
.prep-tab-panel{display:grid;gap:1rem}.prep-readiness-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.7rem;margin-top:1rem}
.prep-readiness-grid span{display:flex;flex-direction:column;gap:.2rem}.prep-readiness-grid b{font-size:1.2rem}.prep-readiness-grid small{opacity:.8}
.prep-readiness .preparation-progress{margin-top:1rem}.prep-gaps{margin-top:1rem}
.prep-chapter-end{margin-top:1rem;padding:.75rem 0;border-top:2px solid var(--line,#38404d);text-align:center;opacity:.7;font-size:.9rem}
.prep-narration{display:flex;justify-content:space-between;align-items:start;gap:1rem}.prep-narration .prewrap{white-space:pre-wrap;overflow-wrap:anywhere}
@media(max-width:850px){.prep-chapters{grid-template-columns:minmax(0,1fr)}.prep-chapter-index{position:static;max-height:none}.prep-chapter-index-items{display:flex;overflow-x:auto}.prep-chapter-choice{min-width:200px}.prep-readiness-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:480px){.prep-chapter-heading,.prep-narration{display:block}}

/* Organização editorial aditiva: não altera paleta nem módulos antigos. */
.prep-catalog-layout .prep-chapter-index .actions{margin-top:1rem}
.prep-catalog-panel[hidden]{display:none!important}
.prep-catalog-panel{display:grid;gap:1rem;min-width:0}
.prep-catalog-panel .prep-readiness{min-width:0}
.prep-catalog-roots{display:grid;gap:.85rem}
.prep-catalog-entry{min-width:0}
.prep-catalog-entry .prewrap,.prep-catalog-panel .prewrap{white-space:pre-wrap;overflow-wrap:anywhere}
.prep-catalog-section summary{cursor:pointer;padding:.5rem 0}
.prep-catalog-section summary small{opacity:.8;margin-left:.6rem}
.prep-catalog-section-body{display:grid;gap:.75rem;padding:.75rem 0 0}
.prep-catalog-plan{display:flex;align-items:center;gap:.65rem;flex-wrap:wrap}
.prep-catalog-plan small{opacity:.8}
.prep-catalog-plan button{margin-left:auto}
.prep-catalog-legacy{margin-top:1rem;min-width:0}
.prep-catalog-legacy>summary{cursor:pointer;padding:1rem;border:1px solid var(--line,#38404d);border-radius:.6rem}
.prep-catalog-plans-host{padding-top:.75rem;min-width:0}
.prep-catalog-plans-host .prep-chapters{grid-template-columns:minmax(180px,230px) minmax(0,1fr)}
@media(max-width:1050px){.prep-catalog-plans-host .prep-chapters{grid-template-columns:minmax(0,1fr)}}
@media(max-width:600px){.prep-catalog-plan button{margin-left:0}.prep-catalog-section summary small{display:block;margin-left:0}}