.prep-aula{--prep-ink:var(--txt);--prep-muted:var(--txt-3);--prep-line:var(--line-soft);--prep-accent:var(--brand-accent);--prep-soft:var(--bg-surface-2);--prep-bg:var(--bg-surface);--prep-font:"Nunito", "Open Sans", system-ui, sans-serif;color:var(--prep-ink);font-family:var(--prep-font)}.prep-aula *{box-sizing:border-box}.prep-aula .prep-eyebrow{color:var(--prep-accent);letter-spacing:.1em;text-transform:uppercase;margin:0 0 7px;font-size:11px;font-weight:800}.prep-aula .prep-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.prep-aula h2{margin:0;font-size:21px;line-height:1.25}.prep-aula p{line-height:1.6}.prep-aula .prep-muted{color:var(--prep-muted);margin:8px 0;font-size:13px}.prep-aula .prep-tags{flex-wrap:wrap;gap:8px;margin:16px 0;display:flex}.prep-aula .prep-tag{border:1px solid var(--prep-line);border-radius:20px;padding:6px 11px;font-size:12px;font-weight:650}.prep-aula .prep-empty{border:1px dashed var(--prep-line);border-radius:14px;margin-top:18px;padding:20px}.prep-aula .prep-flow{flex-wrap:wrap;gap:8px;margin:14px 0 0;padding:0;list-style:none;display:flex}.prep-aula .prep-flow li{background:var(--prep-soft);border-radius:8px;padding:8px 10px;font-size:12px}.prep-aula .prep-activity{border:1px solid var(--prep-line);border-radius:12px;margin:12px 0;overflow:hidden}.prep-aula .prep-activity summary{cursor:pointer;align-items:center;gap:12px;padding:16px;list-style:none;display:flex}.prep-aula .prep-number{height:32px;color:var(--prep-accent);background:var(--prep-soft);border-radius:10px;flex:0 0 32px;place-items:center;font-size:13px;font-weight:800;display:grid}.prep-aula .prep-activity-title{overflow-wrap:anywhere;flex:1;min-width:0}.prep-aula .prep-activity-title small{color:var(--prep-muted);margin-top:4px;font-size:11px;display:block}.prep-aula .prep-minutes{white-space:nowrap;color:var(--prep-muted);font-size:12px}.prep-aula .prep-detail{padding:0 18px 18px}.prep-aula dl{gap:14px;margin:0;display:grid}.prep-aula dt{color:var(--prep-muted);text-transform:uppercase;letter-spacing:.05em;font-size:11px;font-weight:750}.prep-aula dd{white-space:pre-wrap;overflow-wrap:anywhere;margin:4px 0 0;font-size:14px;line-height:1.6}.prep-aula .prep-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.prep-aula .prep-field{gap:6px;min-width:0;font-size:12px;font-weight:650;display:grid}.prep-aula .prep-field input,.prep-aula .prep-field select,.prep-aula .prep-field textarea{background:var(--prep-bg);width:100%;min-width:0;color:var(--prep-ink);border:1px solid var(--prep-line);font:inherit;border-radius:8px;padding:10px 12px;font-size:14px;font-weight:400}.prep-aula textarea{resize:vertical}.prep-aula :is(input,select,textarea,summary):focus-visible{outline:2px solid var(--prep-accent);outline-offset:3px}.prep-aula .prep-editor-activity{border:1px solid var(--prep-line);border-radius:14px;margin:14px 0;padding:18px}.prep-aula .prep-tools{flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:14px;display:flex}.prep-aula .prep-tools strong{flex:1;font-size:13px}.prep-aula .prep-actions{border-top:1px solid var(--prep-line);background:var(--prep-bg);z-index:2;flex-wrap:wrap;justify-content:flex-end;gap:10px;margin-top:18px;padding:16px 0 10px;display:flex;position:sticky;bottom:-24px}.prep-aula .prep-notice{border-left:3px solid var(--prep-accent);background:var(--prep-soft);border-radius:0 8px 8px 0;margin:14px 0;padding:10px 14px;font-size:13px;line-height:1.5}@media (width<=560px){.prep-aula .prep-grid{grid-template-columns:1fr}.prep-aula .prep-editor-activity{padding:12px}.prep-aula .prep-activity summary{gap:8px;padding:12px}.prep-aula .prep-actions>button{flex:1}}