.chapter-body-html{--cnb-p: #1a5276;--cnb-s: #2980b9;--cnb-a: #e67e22;--cnb-g: #27ae60;--cnb-border: #dce4ec;--cnb-tl: #5d6d7e;--cnb-r: 12px;--cnb-rs: 8px}.chapter-body-html h2{color:var(--cnb-p);font-size:1.35rem;margin:1.75rem 0 .85rem;padding-bottom:.35rem;border-bottom:2px solid var(--cnb-border)}.chapter-body-html h3{color:var(--cnb-s);font-size:1.12rem;margin:1.25rem 0 .65rem}.chapter-body-html h4{font-size:1rem;margin:1rem 0 .5rem;font-weight:600}.chapter-body-html table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.92rem}.chapter-body-html th,.chapter-body-html td{border:1px solid var(--cnb-border);padding:.55rem .65rem;text-align:left}.chapter-body-html th{background:var(--cnb-p);color:#fff;font-weight:600}.chapter-body-html tr:nth-child(2n){background:#f8f9fa}.chapter-body-html .competencia-box{background:#e8f4f8;border-left:4px solid var(--cnb-s);padding:.85rem 1rem;margin:.85rem 0;border-radius:0 var(--cnb-rs) var(--cnb-rs) 0}.chapter-body-html .indicador-item{background:#f8f9fa;padding:.55rem .85rem;margin:.35rem 0;border-radius:var(--cnb-rs);border-left:3px solid var(--cnb-a)}.chapter-body-html .contenido-item{background:#fff;padding:.55rem .85rem;margin:.35rem 0;border-radius:var(--cnb-rs);border:1px solid var(--cnb-border)}.chapter-body-html .componente-box{background:#f0f8ff;border-left:4px solid #4a90d9;padding:.85rem 1rem;margin:.85rem 0;border-radius:0 var(--cnb-rs) var(--cnb-rs) 0}.chapter-body-html .ejemplo-box{background:#fff;border:2px solid var(--cnb-s);border-radius:var(--cnb-r);padding:1.15rem;margin:1.15rem 0}.chapter-body-html .ejemplo-box h4{color:var(--cnb-s);margin-bottom:.65rem}.chapter-body-html .actividad-box{background:#f8fafc;border:1px dashed var(--cnb-s);border-radius:var(--cnb-r);padding:1rem 1.15rem;margin:1rem 0}.chapter-body-html .solucion{background:#f8f9fa;padding:.85rem;border-radius:var(--cnb-rs);margin-top:.65rem}.chapter-body-html .caso-box{background:#fff;border:2px solid var(--cnb-a);border-radius:var(--cnb-r);padding:1.15rem;margin:1.15rem 0}.chapter-body-html .deepseek-section{margin:1.25rem 0;padding-top:.5rem;border-top:1px solid var(--cnb-border)}.chapter-body-html .ia-content ul,.chapter-body-html .ia-content ol{margin:.65rem 0 .85rem 1.25rem}.chapter-body-html .ilustracion-box{position:relative;overflow:hidden;background:linear-gradient(135deg,#0f172a,#1e293b);border-radius:var(--cnb-r);margin:1.25rem 0;border:1px solid rgba(255,255,255,.08);min-height:220px}.chapter-body-html .ilustracion-canvas{display:block;width:100%;height:auto;opacity:0;transition:opacity .35s ease}.chapter-body-html .ilustracion-box.is-ready .ilustracion-canvas{opacity:1}.chapter-body-html .ilustracion-loading{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:#cbd5e1;font-size:.92rem}.chapter-body-html .ilustracion-box.is-ready .ilustracion-loading{display:none}.chapter-body-html .ilustracion-overlay{position:absolute;left:0;right:0;bottom:0;padding:.85rem 1rem;background:linear-gradient(180deg,transparent,rgba(15,23,42,.88));color:#fff;pointer-events:none}.chapter-body-html .ilustracion-overlay h3{color:#fff;font-size:.95rem;margin:0 0 .2rem;border:none;padding:0}.chapter-body-html .ilustracion-overlay p{margin:0;font-size:.82rem;opacity:.9}.chapter-body-html .unit.cnb-embedded-unit h2{font-size:1.6rem;font-weight:800;margin-bottom:.85rem;color:var(--color-text, #1f2937);border-bottom:none;padding-bottom:0}.chapter-body-html .unit.cnb-embedded-unit h3{font-size:1.25rem;color:var(--color-primary-dark, #1e5f66);margin:1.5rem 0 .75rem}.chapter-body-html .unit.cnb-embedded-unit h4{font-size:1.05rem;color:var(--color-primary, #2b9ba6);margin:1.1rem 0 .45rem}.chapter-body-html .unit.cnb-embedded-unit p{margin-bottom:1rem;line-height:1.75}.chapter-body-html .unit.cnb-embedded-unit blockquote{border-left:4px solid var(--cnb-a);padding:.85rem 1rem;background:#f39c120f;margin:1rem 0;font-style:italic;border-radius:0 var(--cnb-rs) var(--cnb-rs) 0}.chapter-body-html .unit.cnb-embedded-unit .indicators,.chapter-body-html .unit.cnb-embedded-unit .contents,.chapter-body-html .unit.cnb-embedded-unit .editorial-content{margin-bottom:1.25rem}.chapter-body-html .unit.cnb-embedded-unit .chapter-section{margin:1.5rem 0;padding-top:.5rem;border-top:1px solid var(--cnb-border)}.cnb-libro-page.layout-page-shell[data-v-3e0cfd69]{padding-top:3.25rem;padding-bottom:.75rem;background:var(--color-bg)}.libro-container[data-v-3e0cfd69]{max-width:min(1520px,100%)}.reader-topbar[data-v-3e0cfd69]{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem;gap:1rem}.back-link-row[data-v-3e0cfd69]{display:inline-flex;align-items:center;gap:.45rem;color:var(--color-primary-dark);font-weight:800;font-family:var(--font-heading);font-size:.88rem;text-decoration:none}.back-link-row[data-v-3e0cfd69]:hover{color:var(--color-primary)}.sidebar-toggle-btn[data-v-3e0cfd69]{display:inline-flex;align-items:center;gap:.45rem;padding:.5rem 1rem;border-radius:999px;background:var(--color-surface);border:1px solid var(--color-border-accent);color:var(--color-primary-dark);font-family:var(--font-heading);font-weight:700;font-size:.78rem;cursor:pointer}.loading-reader[data-v-3e0cfd69]{padding:2rem;text-align:center}.workspace-inner[data-v-3e0cfd69]{display:flex;gap:clamp(.85rem,2vw,1.35rem);align-items:flex-start}.workspace-inner.sidebar-hidden[data-v-3e0cfd69]{gap:0}.reader-sidebar[data-v-3e0cfd69]{flex:0 0 clamp(280px,26vw,340px);display:flex;flex-direction:column;max-height:calc(100vh - 5.5rem);position:sticky;top:4.75rem;padding:0;overflow:hidden}.sidebar-header[data-v-3e0cfd69]{padding:1.1rem 1.15rem .85rem;border-bottom:1px solid var(--color-border)}.sidebar-uni-row[data-v-3e0cfd69]{display:flex;align-items:center;gap:.5rem;margin-bottom:.15rem}.sidebar-book-title[data-v-3e0cfd69]{font-size:1.05rem;margin:.35rem 0;line-height:1.25}.sidebar-meta[data-v-3e0cfd69]{color:var(--color-text-light);font-size:.82rem;margin:0}.sidebar-body[data-v-3e0cfd69]{padding:.85rem 1rem 1rem;overflow:auto}.book-stats[data-v-3e0cfd69]{display:grid;grid-template-columns:1fr 1fr;gap:.55rem;margin-bottom:.85rem}.stat-tile[data-v-3e0cfd69]{background:#2b9ba60f;border-radius:var(--radius-md);padding:.65rem;text-align:center}.stat-tile strong[data-v-3e0cfd69]{display:block;font-size:1.1rem;color:var(--color-primary-dark)}.stat-tile span[data-v-3e0cfd69]{font-size:.72rem;color:var(--color-text-light);text-transform:uppercase;letter-spacing:.04em}.stat-tile--sm[data-v-3e0cfd69]{font-size:.82rem!important}.toc-heading[data-v-3e0cfd69]{display:flex;align-items:center;justify-content:space-between;margin:.5rem 0}.toc-title[data-v-3e0cfd69]{font-size:.92rem;margin:0}.toc-count[data-v-3e0cfd69]{font-size:.75rem;color:var(--color-text-light)}.chapter-search input[data-v-3e0cfd69]{width:100%;margin-bottom:.65rem;padding:.55rem .75rem;border-radius:999px;border:1px solid var(--color-border)}.chapter-nav-scroll[data-v-3e0cfd69]{display:flex;flex-direction:column;gap:.35rem;max-height:52vh;overflow:auto}.chapter-item[data-v-3e0cfd69]{display:flex;gap:.65rem;align-items:flex-start;text-align:left;border:1px solid var(--color-border);background:var(--color-bg-white);border-radius:var(--radius-md);padding:.55rem .65rem;cursor:pointer}.chapter-item.active[data-v-3e0cfd69]{border-color:var(--color-primary);background:#2b9ba614}.chapter-number[data-v-3e0cfd69]{flex-shrink:0;width:1.6rem;height:1.6rem;border-radius:999px;background:var(--color-primary);color:#fff;display:grid;place-items:center;font-size:.72rem;font-weight:800}.chapter-copy strong[data-v-3e0cfd69]{display:block;font-size:.82rem;line-height:1.25}.chapter-copy small[data-v-3e0cfd69]{display:block;margin-top:.15rem;color:var(--color-text-light);font-size:.72rem;line-height:1.35}.show-more[data-v-3e0cfd69]{width:100%;margin-top:.65rem;padding:.55rem;border-radius:999px;border:1px dashed var(--color-border-accent);background:transparent;cursor:pointer;font-weight:700;color:var(--color-primary-dark)}.reader-main[data-v-3e0cfd69]{flex:1;min-width:0;display:flex;flex-direction:column;align-items:stretch;overflow:hidden}.missing-book[data-v-3e0cfd69]{padding:2rem;text-align:center}.primary-link[data-v-3e0cfd69]{color:var(--color-primary-dark);font-weight:800}.immersive-active[data-v-3e0cfd69]{padding:.25rem .5rem .5rem!important;min-height:100dvh;background:var(--color-bg)!important}.immersive-active .libro-container[data-v-3e0cfd69]{max-width:100%;padding:0}.immersive-active .reader-topbar[data-v-3e0cfd69]{display:none}.sidebar-backdrop[data-v-3e0cfd69]{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:#0f172a73;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.chapter-body-html .unit.cnb-embedded-unit.kid-book{
  font-family:"Nunito","Trebuchet MS","Segoe UI",sans-serif;
  color:#1e3a5f;line-height:1.7;font-size:1.05rem;
  max-width:100%;overflow-wrap:break-word
}
.chapter-body-html .unit.cnb-embedded-unit .lesson,
.chapter-body-html .unit.cnb-embedded-unit .capitulo,
.chapter-body-html .unit.cnb-embedded-unit .portada,
.chapter-body-html .unit.cnb-embedded-unit .indice{
  color:inherit
}
.chapter-body-html .unit.cnb-embedded-unit .portada{color:#fff}
.chapter-body-html .unit.cnb-embedded-unit p,
.chapter-body-html .unit.cnb-embedded-unit li{
  color:#1e3a5f
}
@media (max-width: 960px){.cnb-libro-page.layout-page-shell[data-v-3e0cfd69]{padding-top:.5rem;padding-bottom:0}.workspace-inner[data-v-3e0cfd69]{flex-direction:column}.reader-sidebar--drawer[data-v-3e0cfd69]{position:fixed;top:0;left:0;bottom:0;z-index:50;width:min(88vw,320px);max-height:100dvh;margin:0;border-radius:0 var(--radius-lg) var(--radius-lg) 0;box-shadow:var(--shadow-lg)}.reader-sidebar--drawer .chapter-nav-scroll[data-v-3e0cfd69]{max-height:calc(100dvh - 14rem)}.reader-main[data-v-3e0cfd69]{width:100%}}

/* book-design-v1: force textbook look over kid-book chrome */
.chapter-body-html .kid-book,
.chapter-body-html .unit.cnb-embedded-unit.kid-book,
.chapter-body-html .cnb-embedded-shell,
.chapter-body-html .cnb-book{
  font-family:"Segoe UI",system-ui,sans-serif!important;
  color:#2c3e50!important;
  background:transparent!important;
  max-width:920px!important;
  margin:0 auto!important;
}
.chapter-body-html .book-header{
  background:linear-gradient(135deg,#1a5276,#154360)!important;
  color:#fff!important;
  padding:2rem 1.75rem!important;
  border-radius:12px!important;
  margin-bottom:1.25rem!important;
  box-shadow:0 4px 20px rgba(0,0,0,.08)!important;
}
.chapter-body-html .book-header h1,
.chapter-body-html .book-header .eyebrow,
.chapter-body-html .book-header .meta{
  color:#fff!important;
  border:0!important;
}
.chapter-body-html article.unit{
  background:#fff!important;
  border:1px solid #dce4ec!important;
  border-radius:12px!important;
  padding:1.5rem 1.75rem 2rem!important;
  box-shadow:0 4px 20px rgba(0,0,0,.06)!important;
}
.chapter-body-html .unit-title{
  color:#1a5276!important;
  font-size:1.45rem!important;
  border:0!important;
  margin:0!important;
}
.chapter-body-html .unit-eyebrow{color:#5d6d7e!important}
.chapter-body-html .unit-header{
  margin-bottom:1rem!important;
  padding-bottom:.75rem!important;
  border-bottom:2px solid #dce4ec!important;
}