.n78-book{background:#fff;border:1px solid #e5e2f5;border-radius:20px;overflow:hidden}.n78-booktop{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:25px;background:linear-gradient(115deg,#efecff,#eefbfc)}.n78-booktop span{letter-spacing:.12em;font-size:10px;font-weight:800;color:#6250c9}.n78-booktop h3{margin:8px 0;font-size:23px}.n78-booktop p{font-size:15px;line-height:1.7;margin:0}.n78-figure{padding:12px 20px;max-width:780px;margin:auto}.n78-booksections{padding:0 25px}.n78-booksections section{position:relative;border-top:1px solid #eeeafa;padding:20px 0 10px 44px}.n78-step{position:absolute;left:0;top:23px;background:#6750d3;color:white;width:28px;height:28px;border-radius:10px;text-align:center;line-height:28px;font-weight:800}.n78-booksections h4{font-size:18px;margin:5px 0 10px;color:#43358e}.n78-booksections p{line-height:1.85;font-size:16px}.n78-book>.n76-card,.n78-book>.n76-actions{margin:20px}.n76-tabs{flex-wrap:wrap!important}.n76-main{min-width:0}.n76-lessonhead h2{overflow-wrap:anywhere}.n76 input[type=file]{max-width:100%}.n78-preview-banner{font:14px/1.5 system-ui;background:#fff1cf;border:1px solid #efd59d;border-radius:12px;padding:15px;margin:0 0 15px;color:#60481c}.n78-preview-banner a{color:inherit;font-weight:700}.n78-preview-banner .n76-btn{margin:5px;font:inherit}#institutionTaskDates{background:#f0f6ff;padding:12px;border-radius:10px;margin-bottom:16px}.n76-stage{min-height:300px}@media(max-width:600px){.n78-booktop{display:block;padding:18px}.n78-booktop a{margin-top:14px}.n78-booksections{padding:0 16px}.n78-booksections section{padding-left:0;padding-top:52px}.n78-step{top:16px}.n78-booksections p{font-size:15px}.n78-book>.n76-card,.n78-book>.n76-actions{margin:12px}.n78-figure{padding:0}}
/* NexoMind · lector editorial, bloques de aprendizaje y proyectos específicos */
.nm-reader{--nm-ink:#263b56;--nm-muted:#60728a;--nm-blue:#4c55ba;--nm-mint:#d9f7ea;color:var(--nm-ink);background:#fff;border:1px solid #dce5f2;border-radius:22px;overflow:hidden;box-shadow:0 8px 30px rgba(44,63,96,.065)}
.nm-reader *{box-sizing:border-box}
.nm-readerhead{padding:clamp(18px,3.4vw,32px);display:flex;gap:20px;align-items:flex-start;justify-content:space-between;background:linear-gradient(115deg,#edf4ff 0%,#f2f2ff 60%,#e9faf3 100%);border-bottom:1px solid #e2e8f3}
.nm-readerhead h3{color:#223958;font-size:clamp(21px,2.5vw,28px);letter-spacing:-.025em;line-height:1.24;margin:8px 0 10px;font-weight:800}
.nm-readerhead p{color:#516783;line-height:1.6;font-size:clamp(14px,1.3vw,16px);margin:0;max-width:62ch}
.nm-kicker,.nm-chapternavtop{font-size:11px;letter-spacing:.08em;color:#4d56ad;font-weight:800}
.nm-sectioncount{white-space:nowrap;border-radius:999px;background:#fff;border:1px solid #d9deed;padding:8px 13px;font-size:12px;font-weight:750;color:#5255a1}
.nm-readergrid{display:grid;grid-template-columns:minmax(210px,255px) minmax(0,1fr);align-items:stretch;gap:0}
.nm-chapternav{background:#f7f9fd;border-right:1px solid #e2e9f1;padding:22px 14px;display:flex;flex-direction:column;gap:7px;min-width:0}
.nm-chapternav>strong{font-size:13px;color:#31466b;margin:0 7px 12px}
.nm-chapternav small{color:#61728a;font-size:11px;line-height:1.5;padding:10px 7px}
.nm-chapterbtn{border:1px solid transparent;background:transparent;padding:10px;display:flex;gap:11px;text-align:left;align-items:flex-start;border-radius:12px;color:#50627d;line-height:1.4;font-size:13px;font-weight:680;width:100%;cursor:pointer;white-space:normal;transition:background .15s,border .15s}
.nm-chapterbtn:hover{background:#e9eefb;color:#394989}
.nm-chapterbtn.is-current{background:#fff;border-color:#cbc9f4;box-shadow:0 4px 14px #4751af12;color:#413a91}
.nm-chapternum{display:inline-grid;place-items:center;background:#e6eaf3;border-radius:8px;width:30px;min-width:30px;height:28px;color:#485e81;font-size:11px;font-weight:800}
.nm-chapterbtn.is-current .nm-chapternum{background:#6356c6;color:#fff}
.nm-chapterbody{padding:clamp(18px,2.9vw,35px);min-width:0}
.nm-chapternavtop{display:flex;gap:14px;justify-content:space-between;flex-wrap:wrap;color:#6c63aa}
.nm-chapternavtop span:last-child{color:#6b8295;font-weight:600;letter-spacing:0}
.nm-meter{height:5px;background:#e9edf6;border-radius:12px;overflow:hidden;margin:15px 0 26px}
.nm-meter i{display:block;height:100%;background:linear-gradient(90deg,#6054c5,#27b993);border-radius:12px}
.nm-chapterbody h4{font-size:clamp(19px,2vw,24px);line-height:1.3;color:#263959;margin:0 0 16px;font-weight:830;letter-spacing:-.02em}
.nm-core{font-size:clamp(15px,1.5vw,17px);line-height:1.85;color:#304762;max-width:74ch;margin:0 0 20px;overflow-wrap:break-word}
.nm-guidevisual{margin:20px 0 26px;border:1px solid #e2e9f3;border-radius:17px;overflow:hidden;background:#f3f7fb}
.nm-guidevisual img,.nm-guidevisual svg{display:block;width:100%;height:auto;max-height:400px;object-fit:contain}
.nm-guidevisual figcaption{padding:9px 16px 12px;background:#f8fafc;color:#61748e;font-size:12px;line-height:1.5}
.nm-activity-card{display:flex;gap:14px;background:#edf9f4;border:1px solid #caeddf;border-radius:16px;padding:18px 20px;margin:20px 0}
.nm-icon-symbol{height:30px;min-width:30px;display:grid;place-items:center;border-radius:10px;color:#086f51;background:#c9f2e1;font-size:20px}
.nm-activity-card strong{font-size:15px;color:#1b644f}.nm-activity-card p{font-size:14px;line-height:1.7;color:#315e51;margin:7px 0 0}
.nm-question-card{background:#f7f6ff;border:1px solid #e3dff9;border-radius:16px;padding:18px 20px;margin:20px 0}
.nm-question-card strong{font-size:14px;color:#473c98}.nm-question-card>p{font-size:15px;line-height:1.65;color:#374263;margin:10px 0 14px}
.nm-question-card details{border-top:1px solid #dedaf1;padding-top:11px}.nm-question-card summary{cursor:pointer;color:#5147ad;font-size:13px;font-weight:780}
.nm-question-card details p{line-height:1.7;font-size:14px;color:#34476b}
.nm-navactions{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:26px}
.nm-btn-primary,.nm-btn-secondary,.nm-voice{border-radius:12px;padding:12px 16px;font-size:13px;font-weight:760;cursor:pointer;line-height:1.3;text-align:center;font-family:inherit}
.nm-btn-primary{border:1px solid #4f4db9;color:#fff;background:#5854be;box-shadow:0 6px 14px #5e51bd2b}
.nm-btn-primary:hover{background:#4844a8}.nm-btn-secondary{border:1px solid #d5dcef;color:#4a5680;background:#fff}.nm-btn-secondary:hover{background:#f0f3fc}
.nm-btn-secondary:disabled{opacity:.35;cursor:not-allowed}.nm-voice{display:inline-flex;gap:6px;margin-top:20px;background:transparent;border:0;color:#4d55a4;text-decoration:underline;text-underline-offset:3px}
.nm-readerfooter{border-top:1px solid #e2e8f2;padding:18px 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;background:#fbfcff}
.nm-readerfooter p{font-size:12px;color:#61728a;line-height:1.5;max-width:58ch;margin:0}.nm-readerfooter>div{display:flex;flex-wrap:wrap;gap:8px}
.nm-reader button:focus-visible,.nm-reader summary:focus-visible{outline:3px solid #28b7a0;outline-offset:3px}
.nm-project{background:#fff;border:1px solid #dae7f0;border-radius:19px;overflow:hidden}.nm-project header{padding:26px;background:linear-gradient(110deg,#e6f6ee,#eef3fd)}
.nm-project header span{font-size:11px;letter-spacing:.12em;font-weight:800;color:#257456}.nm-project h3{font-size:22px;color:#2b4770;margin:8px 0}.nm-project header p{color:#58758b;margin:0;font-size:14px}
.nm-project section{padding:8px 24px 2px}.nm-project h4{color:#384f76;margin:20px 0 10px;font-size:17px}.nm-project li{margin-bottom:9px;line-height:1.6;color:#405771;font-size:14px}.nm-project aside{padding:16px;margin:20px 24px 24px;border-radius:11px;background:#fff5e7;border:1px solid #edd5b6;color:#7e4c1f;font-size:14px;line-height:1.6}
@media(max-width:740px){.nm-readergrid{grid-template-columns:minmax(0,1fr)}.nm-chapternav{border-right:0;border-bottom:1px solid #e2e9f1;padding:16px 12px}.nm-chapternav>strong{margin-bottom:5px}.nm-chapterbtn{padding:8px 10px;font-size:13px}.nm-chapternav small{display:none}.nm-readerhead{display:block}.nm-sectioncount{display:inline-block;margin-top:14px}.nm-navactions>button{flex:1 1 130px}.nm-readerfooter{padding:16px}.nm-core{line-height:1.7}.nm-chapterbody{padding:18px 16px}}
@media(prefers-reduced-motion:reduce){.nm-reader *{transition:none!important;scroll-behavior:auto!important}}
.nm-guidevisual figcaption button{border:0;background:none;color:#4c48a0;text-decoration:underline;font:inherit;font-weight:750;cursor:pointer;padding:0 3px}
.nm-illustration-modal{border:1px solid #dce3ee;border-radius:17px;padding:0;width:min(980px,calc(100vw - 22px));max-height:90vh;box-shadow:0 20px 80px #0005;background:#fff;color:#314766}
.nm-illustration-modal::backdrop{background:#111b32b8}
.nm-illustration-modal header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid #e3e8f2;font:700 15px Arial,sans-serif}
.nm-illustration-modal header button{background:#f0f2ff;color:#4847a0;padding:10px;border:0;border-radius:10px;font:700 13px Arial;cursor:pointer}
.nm-illustration-zoom{width:100%;max-height:75vh;overflow:auto;padding:12px}
.nm-illustration-zoom img{width:900px;min-width:900px;max-width:none;height:auto;display:block}