/* Guía 4: únicamente estilos específicos. Header/footer/nav usan CSS generales. */
.guide-shell{border-radius:22px!important}.unit-part-bar{background:#e9f4ff;border-bottom:1px solid #d5e4f1}.part-chip{border:1px solid #a7c4e4;background:#fff;color:#0b3a67}.part-chip.active{background:#075a9c;color:#fff}.btn-next-part{background:#0874bd;color:white}.guide4-hero{position:relative;min-height:clamp(340px,40vw,650px);overflow:hidden;background:linear-gradient(115deg,#192f61,#78448d 48%,#a36e51);border-radius:0 0 22px 22px;color:white}.guide4-hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;aspect-ratio:8/3}.guide4-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,20,49,.87),rgba(15,22,51,.46))}.guide4-hero-overlay{position:relative;z-index:1;max-width:850px;padding:clamp(24px,5vw,70px)}.guide4-hero h2{font-size:clamp(2rem,4vw,3.8rem);font-weight:800}.hero-concepts{display:grid;gap:8px}.hero-badge{background:#f1d0a5;color:#24213d}.learning-section{background:#fff;border:1px solid #dbe7f1;border-radius:18px;position:relative;scroll-margin-top:24px}.section-heading-row{display:flex;align-items:flex-start;gap:16px}.step-number{background:#0b6bb0;color:white;border-radius:14px;padding:12px;font-weight:800;min-width:54px;text-align:center}.section-label,.part-kicker{font-weight:800;letter-spacing:.09em;color:#1172a5;font-size:.8rem}.locked-section{position:relative}.locked-section>.lock-cover{position:absolute;inset:0;z-index:5;background:rgba(241,248,253,.94);display:flex;justify-content:center;align-items:center;gap:12px;text-align:center;padding:24px;border-radius:18px;color:#264763}.locked-section :is(input,textarea,button,select){pointer-events:none}.student-identification,.video-responsibility-card,.assessment-mode{background:#f2f8ff;border-radius:14px;padding:18px}.student-entry{padding:15px;border:1px solid #d7e4f2;border-radius:12px;margin-bottom:12px;background:white}.movement-study-panel{padding:25px;border-radius:20px;min-height:270px}.movement-study-romantic{background:linear-gradient(145deg,#663a87,#322354);color:white}.movement-study-realist{background:linear-gradient(145deg,#d9ead8,#a7d3ba);color:#163e31}.movement-study-icon,.movement-icon{font-size:2rem}.movement-study-actions{display:flex;flex-wrap:wrap;gap:8px}.movement-compare-note{padding:15px;background:#eff8f4;border-radius:12px}.movement-card{width:100%;height:100%;text-align:left;border-radius:18px;padding:25px;border:2px solid transparent}.romantic-card{background:#eee1f7;color:#40245b}.realist-card{background:#e2f3e8;color:#204a33}.movement-card.selected{border-color:#0869bd;box-shadow:0 0 0 3px #9ac9ff}.movement-tags{display:flex;gap:6px;flex-wrap:wrap}.movement-tags span{padding:4px 9px;border-radius:30px;background:#ffffff9c}.movement-selected,.creation-checklist,.writer-workbench{padding:20px;border-radius:14px;background:#f4f8fc}.guidance-check-row{display:flex;justify-content:space-between;gap:12px;align-items:center;margin:14px 0}.old-book-page{margin:auto;max-width:760px;padding:clamp(20px,5vw,60px);background:#f6ebcf;color:#3d3020;border:8px double #8b704d;border-radius:6px;box-shadow:0 10px 25px #0002;font-family:Georgia,serif}.old-book-page h4{text-align:center}.book-text{white-space:pre-wrap;line-height:1.8}.book-ornament{text-align:center;font-size:2rem}.book-signature{text-align:right}.pseudonym-label{display:block;font-size:.8rem}.open-question{padding:16px;border-bottom:1px solid #e5eaf0}.open-question>span{font-weight:800;color:#176da7}.open-question label{display:block;font-weight:600;margin:8px 0}.literary-timeline{display:flex;gap:20px;justify-content:space-around;flex-wrap:wrap}.timeline-point{padding:20px;border-radius:15px;flex:1;min-width:220px;background:#e9f4ff}.timeline-point strong,.timeline-point small,.timeline-year{display:block}.final-part-card{padding:22px;background:#e8f7ed;border-radius:15px;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}.result-modal{border-radius:22px}.result-score{font-size:clamp(3.8rem,10vw,6.5rem);font-weight:800;color:#1fac54;line-height:1.2;margin:25px 0}.movement-help-modal{border-radius:18px}.youtube-stage{max-width:1000px;margin:auto}.assessment-mode .active{font-weight:700}@media(max-width:767px){.guide4-hero{min-height:480px}.guide4-hero-overlay{padding:24px}.guidance-check-row{flex-direction:column;align-items:start}.section-heading-row{gap:10px}}