/* Accessible social links and book samples. */
.social-topbar{background:#071a3d;color:#fff}.social-topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.25rem}.social-topbar p{margin:0;font:700 .73rem/1.3 Arial,sans-serif;letter-spacing:.13em}.social-links{display:flex;align-items:center;gap:.75rem}.social-topbar .social-link{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:44px;padding:0 .65rem;color:#fff;font:700 .86rem/1.2 Arial,sans-serif;text-decoration:none;border-radius:4px}.social-topbar .social-link:hover{background:#ffffff20;text-decoration:underline;text-underline-offset:4px}.social-link svg{width:24px;height:24px;flex-shrink:0;fill:currentColor}.social-link:focus-visible{outline:3px solid #f5c229;outline-offset:2px}
.topic-card-link{position:relative;color:inherit;text-decoration:none!important;display:block;transition:transform .15s,box-shadow .15s}.topic-card-link:hover{transform:translateY(-3px);box-shadow:0 12px 24px #071a3d12}.topic-card-link:focus-visible{outline:3px solid #071a3d;outline-offset:4px}.topic-card-link h3{text-decoration:underline;text-decoration-color:transparent;text-underline-offset:5px}.topic-card-link:hover h3{text-decoration-color:currentColor}.topic-card-link .read-topic{display:block;margin-top:1.1rem;font-size:.9rem;font-weight:700;color:#bd1633}.checklist a{display:inline-block;padding:.35rem 0;color:#071a3d;text-underline-offset:4px}
.topic-article{max-width:760px;margin-inline:auto;padding:2.5rem 1.25rem 4rem}.topic-article .topic-body p{font-size:1.08rem;line-height:1.85;margin:0 0 1.3rem}.topic-article .topic-sources{margin-top:2.5rem;padding:1.5rem;background:#f1f5f8;border-left:4px solid #e6b523}.topic-sources h2{font:700 1.1rem/1.4 Arial,sans-serif;margin:0 0 .8rem}.topic-sources li{margin:.65rem 0}.topic-sources a{overflow-wrap:anywhere}.topic-back{display:inline-block;margin-top:2rem}
.book-samples{background:#f3f5f7}.book-samples .section-heading p{max-width:430px}.sample-edition-note,.sample-copyright{font-size:.86rem;color:#4d5b70;max-width:800px}.book-reader{max-width:1040px;margin:1.8rem auto}.sample-selectors{display:flex;flex-wrap:wrap;gap:.65rem;justify-content:center;margin-bottom:1.6rem}.sample-selector{display:flex;align-items:center;gap:.55rem;min-height:48px;background:#fff;color:#071a3d;border:1px solid #aeb8c7;padding:.7rem 1rem;text-decoration:none!important;font-size:.91rem;font-weight:700;border-radius:4px}.sample-selector span{font-size:.75rem;color:#5a687c}.sample-selector[aria-current=true]{background:#071a3d;border-color:#071a3d;color:#fff}.sample-selector[aria-current=true] span{color:#f5c229}.sample-selector:focus-visible,.sample-navigation button:focus-visible{outline:3px solid #bd1633;outline-offset:3px}.sample-canvas{max-width:760px;margin:auto}.sample-paper{background:#fff;color:#18243a;padding:2.6rem 3.2rem 1.8rem;border:1px solid #d9dfe7;box-shadow:0 12px 36px #071a3d0d;margin:0 0 1.6rem;scroll-margin-top:110px}.sample-paper[hidden]{display:none!important}.sample-paper .sample-running-title{text-transform:uppercase;letter-spacing:.12em;border-bottom:1px solid #d9dfe7;padding-bottom:.8rem;margin:0 0 1.8rem;font:600 .66rem/1.5 Arial,sans-serif;color:#56647a}.sample-paper h3{font:700 1.7rem/1.28 Georgia,serif;letter-spacing:-.02em;margin:0 0 1.6rem}.sample-paper h4{font:700 1rem/1.5 Georgia,serif;margin:1.5rem 0 .6rem}.sample-paper p{font:400 1.02rem/1.8 Georgia,serif;margin:0 0 1rem}.sample-contents{list-style:none;padding:0;margin:0}.sample-contents li{font:400 .85rem/1.5 Georgia,serif;margin:0 0 .38rem;padding-bottom:.32rem;border-bottom:1px dotted #e2e6ed}.sample-paper .sample-page-footer{border-top:1px solid #d9dfe7;padding-top:1rem;margin:2rem 0 0;display:flex;justify-content:space-between;gap:1rem;font:400 .7rem/1.5 Arial,sans-serif;color:#56647a}.sample-navigation{display:flex;align-items:center;justify-content:space-between;gap:1rem;max-width:760px;margin:auto}.sample-navigation[hidden]{display:none}.sample-navigation button{background:#fff;color:#071a3d;border:1px solid #aeb8c7;padding:.7rem 1rem;min-height:48px;border-radius:4px;font:700 .85rem/1.4 Arial,sans-serif;cursor:pointer}.sample-navigation button:disabled{opacity:.45;cursor:default}.sample-navigation [data-sample-status]{font-size:.8rem;text-align:center;color:#4d5b70}.sample-jump{display:inline-flex;align-items:center;min-height:44px;font-weight:700;text-underline-offset:4px}
@media(max-width:760px){.social-topbar .wrap{justify-content:center;padding-inline:.5rem}.social-topbar p{display:none}.social-links{gap:.15rem;width:100%;justify-content:space-evenly}.social-topbar .social-link{font-size:.8rem;gap:.4rem;padding:0 .35rem}.sample-paper{padding:1.6rem 1.25rem}.sample-paper h3{font-size:1.4rem}.sample-paper p{font-size:1rem;line-height:1.75}.sample-contents li{font-size:.88rem}.sample-selectors{gap:.45rem;justify-content:flex-start}.sample-selector{padding:.6rem .75rem;font-size:.8rem;flex:1 0 29%;justify-content:center}.sample-navigation{flex-wrap:wrap;gap:.6rem}.sample-navigation [data-sample-status]{order:-1;width:100%}.sample-navigation button{font-size:.8rem;flex:1}.sample-paper .sample-page-footer{font-size:.65rem}.topic-article .topic-body p{font-size:1.02rem}}
@media(prefers-reduced-motion:reduce){.topic-card-link{transition:none}.topic-card-link:hover{transform:none}}@media print{.social-topbar,.sample-selectors,.sample-navigation{display:none!important}.sample-paper{display:block!important;break-after:page;box-shadow:none;border:0}}

footer .social-link{gap:.5rem}footer .social-link svg{width:20px;height:20px}
@media(max-width:760px){.social-topbar .wrap{width:100%}}
@media(max-width:360px){.social-topbar .social-link{font-size:.75rem;padding-inline:.2rem;gap:.3rem}.social-links{gap:0}}
/* Use the same menu breakpoint as the keyboard-navigation logic. */
@media(min-width:761px) and (max-width:1080px){.header-inner{min-height:76px;flex-wrap:nowrap;gap:16px}.header-inner .brand{flex:1;min-width:0;width:auto}.menu-button{display:block;flex:none;margin-left:auto;min-height:44px}.site-nav{display:none;position:absolute;left:0;right:0;top:76px;margin:0;padding:18px 5%;background:#fff;box-shadow:0 16px 30px #071a3d29;flex-direction:column;align-items:stretch;max-height:calc(100dvh - 76px);overflow-y:auto}.site-nav.open{display:flex}.site-nav a{display:flex;align-items:center;padding:10px;min-height:44px}.search-button{flex:none}}

/* Actual EPUB figures, readable in the existing five-page reader. */
.sample-figure{margin:1.2rem 0}.sample-figure img{display:block;width:100%;height:auto;max-width:100%;object-fit:contain}.sample-figure a{display:block}.sample-figure figcaption,.sample-paper .sample-source,.sample-paper .sample-image-note{font:400 .85rem/1.6 Arial,sans-serif;color:#46546a;overflow-wrap:normal;margin-top:.8rem}.sample-paper .sample-image-note{font-size:.8rem}.sample-contents li{overflow-wrap:normal;word-break:normal}

.book-reader{scroll-margin-top:110px}