.book-reader_reader___Fs5o.book-reader_reader___Fs5o{--reader-header-offset:0px;--reader-section-offset:8rem;gap:1rem;min-width:0;padding:.35rem .5rem 1.25rem}.book-reader_reader___Fs5o .book-reader_controls__y7Qfm{position:-webkit-sticky;position:sticky;top:var(--reader-header-offset);z-index:12;display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;grid-gap:.45rem;gap:.45rem;width:min(100%,78rem);margin-inline:auto;padding:.4rem;border:1px solid #d5dde8;border-radius:var(--radius-sm,4px);background:rgba(250,251,253,.98);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.book-reader_controls__y7Qfm .book-chapter-jump{display:block;min-width:0;max-width:none}.book-reader_controls__y7Qfm .book-chapter-jump select{min-width:0;min-height:2.75rem;padding-inline:.5rem;text-overflow:ellipsis;font-size:.83rem}.book-reader_controls__y7Qfm .book-chapter-nav-top{display:flex;gap:.25rem;padding:0;border:0;background:transparent}.book-reader_controls__y7Qfm .book-chapter-nav-top .book-chapter-status{display:none}.book-reader_controls__y7Qfm .book-chapter-nav-top .book-chapter-btn{min-width:2.75rem;width:2.75rem;border:1px solid #d5dde8;text-decoration:none}.book-reader_closeButton__NKzjg,.book-reader_controlButton__N1EHH{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;min-width:2.75rem;min-height:2.75rem;padding:.45rem .65rem;border:1px solid #d5dde8;border-radius:var(--radius-sm,4px);background:#ffffff;color:var(--primary-strong,#19456b);font:inherit;font-size:.81rem;font-weight:750;cursor:pointer}.book-reader_closeButton__NKzjg:hover,.book-reader_controlButton__N1EHH:hover{border-color:var(--primary,#1f4e79);background:#f0f5fa}.book-reader_activeControl__LGMCC{border-color:var(--primary,#1f4e79);background:#eaf1f8}.book-reader_searchIndicator__WMzO_{width:.45rem;height:.45rem;flex:none;border-radius:50%;background:var(--primary,#1f4e79)}.book-reader_skipLink__IctV3{position:absolute;left:0;top:0;width:1px;height:1px;overflow:hidden;-webkit-clip-path:inset(50%);clip-path:inset(50%)}.book-reader_skipLink__IctV3:focus{z-index:2;width:auto;height:auto;padding:.65rem;-webkit-clip-path:none;clip-path:none;background:#ffffff}.book-reader_toolsPanel__VbwpR{position:absolute;top:calc(100% + .35rem);right:0;display:grid;grid-gap:.85rem;gap:.85rem;width:min(100%,27rem);max-height:calc(100dvh - var(--reader-section-offset) - 1rem);overflow:auto;padding:.85rem;border:1px solid #c8d4e2;border-radius:var(--radius-sm,4px);background:#ffffff;box-shadow:0 12px 28px rgba(16,24,40,.14)}.book-reader_reader___Fs5o .book-reader_contents__qwxiS[hidden],.book-reader_reader___Fs5o .book-reader_toolsPanel__VbwpR[hidden]{display:none}.book-reader_panelHeading__ZFHMU{display:flex;align-items:center;justify-content:space-between;gap:.5rem}.book-reader_panelHeading__ZFHMU h2{margin:0;color:#344054;font-size:.85rem;line-height:1.4}.book-reader_closeButton__NKzjg{padding:.3rem;border-color:transparent;font-size:1.25rem;font-weight:500}.book-reader_fieldLabel__Wk45G{display:block;margin-bottom:.35rem;color:#475467;font-size:.78rem;font-weight:700}.book-reader_reader___Fs5o .book-reader_languages__p1K_G{display:grid;grid-gap:0;gap:0;padding:0;border:0;background:transparent}.book-reader_reader___Fs5o .book-reader_languages__p1K_G .book-language-toggle{display:flex;flex-wrap:wrap;justify-content:flex-start;gap:.35rem}.book-reader_searchStatus__XoIu5{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-top:-.4rem;font-size:.78rem}.book-reader_searchStatus__XoIu5 p{margin:0;color:#475467}.book-reader_searchStatus__XoIu5 button{min-height:2.75rem;padding:0 .35rem;border:0;background:transparent;color:var(--primary-strong,#19456b);font:inherit;text-decoration:underline;cursor:pointer}.book-reader_reader___Fs5o .book-reader_layout__bMf0Z{display:grid;grid-template-columns:minmax(0,1fr);align-items:start;grid-gap:1.5rem;gap:1.5rem;width:min(100%,76ch);margin-inline:auto}.book-reader_reader___Fs5o .book-reader_contents__qwxiS{position:-webkit-sticky;position:sticky;top:var(--reader-section-offset);display:grid;align-self:start;grid-gap:.5rem;gap:.5rem;min-width:0;max-height:calc(100dvh - var(--reader-section-offset) - 1rem);overflow:auto;overscroll-behavior:contain;padding:.65rem;border:1px solid #d5dde8;border-radius:var(--radius-sm,4px);background:#ffffff;scrollbar-gutter:stable}.book-reader_reader___Fs5o .book-reader_body__P13b_{--book-reader-measure:74ch;display:grid;min-width:0;min-height:0;max-height:none;overflow:visible}.book-reader_reader___Fs5o #book-chapter-body,.book-reader_reader___Fs5o .book-chapter-section,.book-reader_reader___Fs5o .reference-entry-list>li{scroll-margin-top:var(--reader-section-offset)}.book-reader_reader___Fs5o .book-chapter-section{padding-left:0;border-left:0}.book-reader_sectionHeading__pqYwf:focus{outline:2px solid var(--primary,#1f4e79);outline-offset:.25rem;border-radius:2px}.book-reader_reader___Fs5o .book-reader-bottom-controls{display:flex}.book-reader_reader___Fs5o .book-index-locator{text-decoration:underline;text-underline-offset:.15em}.book-reader_reader___Fs5o .book-index-locator-principal{font-weight:800}@media (min-width:1080px){.book-reader_reader___Fs5o .book-reader_layoutWithContents__PpB6J{grid-template-columns:minmax(13rem,16rem) minmax(0,1fr);width:min(100%,78rem)}}@media (max-width:1079px){.book-reader_reader___Fs5o .book-reader_contents__qwxiS{position:static;max-height:min(55dvh,28rem)}}@media (max-width:700px){.book-reader_reader___Fs5o.book-reader_reader___Fs5o{padding-inline:.35rem}.book-reader_reader___Fs5o .book-reader_controls__y7Qfm{gap:.25rem;padding:.3rem}.book-reader_controlButton__N1EHH{padding-inline:.4rem}.book-reader_controlLabel__oResb{display:none}.book-reader_controls__y7Qfm .book-chapter-jump select{font-size:.8rem}.book-reader_reader___Fs5o .book-reader_body__P13b_{padding-inline:.2rem}.book-reader_reader___Fs5o .book-list,.book-reader_reader___Fs5o .book-paragraph{font-size:1rem;line-height:1.75}}.explanation-pages_connectionMap__KjGcr{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin:0;padding:0;border-top:1px solid var(--ddf-line);list-style:none;counter-reset:connection}.explanation-pages_connectionMap__KjGcr li{min-width:0;padding:1.15rem 1.2rem 0 0;counter-increment:connection}.explanation-pages_connectionMap__KjGcr li+li{border-left:1px solid var(--ddf-line);padding-left:1.2rem}.explanation-pages_connectionMap__KjGcr li:before{content:"0" counter(connection);color:var(--ddf-rust);font-size:.72rem;font-weight:800;letter-spacing:.1em}.explanation-pages_connectionMap__KjGcr h3{margin:.6rem 0;color:var(--ddf-ink);font-family:Georgia,Times New Roman,serif;font-size:1.3rem;line-height:1.2}.explanation-pages_connectionMap__KjGcr p{margin:0;color:#4a5568;font-size:.96rem;line-height:1.65}.explanation-pages_methodDisclosure__66s7H{padding-block:1.35rem}.explanation-pages_methodDisclosure__66s7H summary{color:var(--ddf-ink);cursor:pointer;font-family:Georgia,Times New Roman,serif;font-size:1.4rem;font-weight:700;line-height:1.3}.explanation-pages_aboutDisclosure__aROxh summary:focus-visible,.explanation-pages_methodDisclosure__66s7H summary:focus-visible{outline:3px solid #9a482a;outline-offset:5px}.explanation-pages_methodDisclosure__66s7H>p{max-width:75ch;color:#465269;line-height:1.7}.explanation-pages_methodDisclosure__66s7H>ol{margin-top:1.8rem}.explanation-pages_aboutPurpose__R4ELP{padding:clamp(1.25rem,3vw,2rem)}.explanation-pages_aboutPurpose__R4ELP h2{max-width:28ch}.explanation-pages_aboutDisclosure__aROxh{display:grid;grid-gap:1rem;gap:1rem}.explanation-pages_aboutDisclosure__aROxh details{box-shadow:none}.explanation-pages_aboutDisclosure__aROxh details>ol{display:grid;grid-gap:.85rem;gap:.85rem;padding-left:1.3rem;color:#475467;line-height:1.6}.explanation-pages_aboutDisclosure__aROxh details>ol p{margin:.25rem 0 0}.explanation-pages_languageInvitation__t5ifI{margin:0;max-width:85ch;color:var(--muted);font-size:.95rem;line-height:1.65}@media (max-width:1050px){.explanation-pages_connectionMap__KjGcr{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}.explanation-pages_connectionMap__KjGcr li,.explanation-pages_connectionMap__KjGcr li+li{border-left:0;padding-left:0}}@media (max-width:620px){.explanation-pages_connectionMap__KjGcr{grid-template-columns:minmax(0,1fr);gap:0}.explanation-pages_connectionMap__KjGcr li,.explanation-pages_connectionMap__KjGcr li+li{padding:1rem 0}.explanation-pages_connectionMap__KjGcr li+li{border-top:1px solid var(--ddf-line)}}.library-orientation_homeHero__ZLLhV{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);grid-gap:clamp(1.75rem,4vw,4rem);gap:clamp(1.75rem,4vw,4rem);align-items:center;padding:clamp(1.5rem,4vw,3.5rem);background:linear-gradient(135deg,#ffffff,#f3f6fa)}.library-orientation_heroCopy__vLxH_ .library-orientation_headline__fsW_R{max-width:18ch;margin:.7rem 0 1.25rem;font-size:clamp(2.5rem,4.6vw,4.55rem);line-height:1.04;letter-spacing:-.045em}.library-orientation_heroCopy__vLxH_ .library-orientation_heroLead__1ppKS{max-width:52ch;margin:0;color:#475467;font-size:clamp(1rem,1.3vw,1.15rem);line-height:1.7}.library-orientation_featuredBook__37b7T{display:grid;grid-template-columns:minmax(0,6.5rem) minmax(0,1fr);grid-gap:1.25rem;gap:1.25rem;align-items:start;border-top:3px solid var(--primary-strong);padding-top:1.4rem}.library-orientation_featuredCover__dEGXH{display:block;width:100%;height:auto;border-radius:3px;box-shadow:0 5px 14px rgba(15,23,42,.13)}.library-orientation_featureCopy__GG6pb{display:grid;grid-gap:.7rem;gap:.7rem;justify-items:start;min-width:0}.library-orientation_featureCopy__GG6pb .library-orientation_featuredTitle__kbzum{margin:0;font-size:clamp(1.3rem,1.7vw,1.75rem);line-height:1.25}.library-orientation_purposeLabel__lxdp_{margin:0;color:var(--primary-strong);font-size:.75rem;font-weight:800;letter-spacing:.055em;line-height:1.5;text-transform:uppercase}.library-orientation_edition__ktmbx{margin:0;color:#667085;font-size:.8rem;line-height:1.5}.library-orientation_featureCopy__GG6pb .library-orientation_readerAction__ZEXqL{min-height:2.8rem;padding:.7rem .95rem;white-space:normal;text-align:left;line-height:1.4}.library-orientation_homePaths__1lmKg{margin-block:1.75rem}.library-orientation_sectionTitle__rO_TG{margin:0 0 1rem;font-size:1.3rem;line-height:1.3}.library-orientation_pathGrid__VMI1d{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:1.4rem;gap:1.4rem}.library-orientation_pathLink__zceDK{display:grid;align-content:start;grid-gap:.6rem;gap:.6rem;border-top:1px solid var(--border);padding-top:1.15rem;color:inherit;text-decoration:none}.library-orientation_pathLink__zceDK h3{margin:0;color:var(--primary-strong);font-size:1.15rem;line-height:1.4}.library-orientation_pathLink__zceDK p{margin:0;color:#526074;line-height:1.6}.library-orientation_guideCard__T5di8:hover .library-orientation_guideAction__94O8L,.library-orientation_pathLink__zceDK:hover h3{text-decoration:underline;text-underline-offset:.18em}.library-orientation_guideCard__T5di8:focus-visible,.library-orientation_pathLink__zceDK:focus-visible{border-radius:3px;outline:2px solid var(--primary);outline-offset:5px}.library-orientation_readingMap__AIP_i{max-width:68rem;margin:.5rem 0 2rem}.library-orientation_guideGrid__f4y2y{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:1rem;gap:1rem}.library-orientation_guideCard__T5di8{display:flex;flex-direction:column;gap:.75rem;border:1px solid var(--border);border-radius:5px;padding:1.25rem;background:#ffffff;color:inherit;text-decoration:none}.library-orientation_guideCard__T5di8 h3{margin:0;font-size:1.2rem;line-height:1.3}.library-orientation_guideAction__94O8L{margin-top:auto;padding-top:.15rem;color:var(--primary-strong);font-size:.85rem;font-weight:750;line-height:1.5}.library-orientation_referenceGuide__2f_oJ{border-color:#b9c9de;border-top:3px solid var(--primary-strong);padding-top:calc(1.25rem - 2px);background:#f2f6fb}.library-orientation_centralBook__Ei1lO{border-left:3px solid var(--primary-strong);background:#f2f6fb}.library-orientation_centralBook__Ei1lO .book-feature-link{padding-inline:1rem}.library-orientation_companionStart___KNtu{scroll-margin-top:6rem}.library-orientation_bookTitle__oTHlc{margin:0;color:#111827;font-size:clamp(1.35rem,2vw,1.9rem);line-height:1.16}@media (max-width:1000px){.library-orientation_homeHero__ZLLhV{grid-template-columns:minmax(0,1fr)}.library-orientation_featuredBook__37b7T{max-width:38rem;grid-template-columns:minmax(0,6.5rem) minmax(0,1fr)}.library-orientation_guideGrid__f4y2y{grid-template-columns:minmax(0,1fr)}}@media (max-width:640px){.library-orientation_homeHero__ZLLhV{gap:1.75rem;padding:1.3rem}.library-orientation_heroCopy__vLxH_ .library-orientation_headline__fsW_R{font-size:clamp(2.1rem,8.5vw,3rem)}.library-orientation_featuredBook__37b7T{grid-template-columns:4.5rem minmax(0,1fr);gap:1rem}.library-orientation_featureCopy__GG6pb .library-orientation_featuredTitle__kbzum{font-size:1.2rem}.library-orientation_pathGrid__VMI1d{grid-template-columns:minmax(0,1fr);gap:1.25rem}.library-orientation_guideCard__T5di8{padding:1rem}.library-orientation_referenceGuide__2f_oJ{padding-top:calc(1rem - 2px)}.library-orientation_centralBook__Ei1lO .book-feature-link{padding-inline:.7rem}}@media (max-width:900px){header.site-header_header__l68lX.site-header{flex-wrap:nowrap;align-items:center;gap:.5rem}.site-header_header__l68lX .site-header-branding{flex:0 1 auto;width:auto;min-width:0}.site-header_header__l68lX .site-header-main{flex:0 0 auto;width:auto;min-width:0;margin-left:auto}.site-header_header__l68lX .site-header-utilities{width:auto;gap:.25rem}.site-header_header__l68lX .quick-open-trigger,.site-header_header__l68lX .site-header-menu-summary{min-height:2.75rem;padding-inline:.4rem}}@media (min-width:361px) and (max-width:440px){.site-header_header__l68lX .site-wordmark{gap:.4rem}.site-header_header__l68lX .site-wordmark-logo{width:2rem;height:2rem}.site-header_header__l68lX .site-wordmark-text{font-size:.875rem}}