html{scroll-padding-top:110px}header.site-header{position:sticky;top:0;z-index:1000;max-width:none;height:88px;background:#f5f2e9f5;border-bottom:1px solid var(--line);backdrop-filter:blur(12px);padding:0 5%;gap:24px}.site-header .site-nav{display:flex;gap:25px;align-items:center;font-size:13px}.site-nav>a{padding:10px 0;border-bottom:2px solid transparent}.site-nav>a:hover,.site-nav>a[aria-current]{border-color:var(--gold);color:#223d35}.menu-toggle{display:none;background:transparent;color:var(--ink);border:1px solid #9ca99b;border-radius:4px;padding:10px 14px;cursor:pointer;font-size:13px;gap:9px;align-items:center}.menu-icon{font-size:20px;line-height:1}.back-top{position:fixed;bottom:22px;right:24px;z-index:900;background:var(--ink);color:#fffdf7;border:1px solid #fffdf7;border-radius:30px;padding:12px 17px;font-size:13px;box-shadow:0 3px 14px #223d3520}.back-top:hover{background:#365c4c}.chapter-pagination{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:stretch;border-top:1px solid var(--line);padding:28px 0;margin-top:45px}.chapter-pagination a{border:1px solid var(--line);border-radius:5px;padding:15px;font-size:13px;line-height:1.6}.chapter-pagination a:hover{background:#e9eee4}.chapter-pagination small{display:block;font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:7px}.chapter-pagination .chapter-all{align-self:center;text-align:center;background:#e9eee4;white-space:nowrap}.chapter-pagination .chapter-forward{text-align:right}.chapter-progress{font-size:12px;color:var(--muted);margin:12px 0}.chapter-breadcrumb{display:flex;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-bottom:20px}.chapter-breadcrumb a{text-decoration:underline}.site-header .map-mobile-link,.site-header .nav-cta{display:none}@media(max-width:800px){html{scroll-padding-top:86px}header.site-header{height:auto;min-height:74px;padding:16px 22px;flex-wrap:wrap;justify-content:space-between;gap:16px}.site-header .brand{font-size:15px}.site-header .site-nav{display:flex;flex-basis:100%;flex-direction:column;align-items:stretch;gap:0;order:3;padding:4px 0 6px}.site-nav>a{padding:13px 12px;border-bottom:1px solid var(--line);font-size:15px}.site-nav>a[aria-current]{background:#e9eee4;border-left:3px solid var(--gold)}.has-nav-js .menu-toggle{display:flex}.has-nav-js .site-nav:not(.is-open){display:none}.chapter-pagination{grid-template-columns:1fr 1fr;gap:10px}.chapter-pagination a{padding:12px;font-size:12px}.chapter-pagination .chapter-all{grid-column:1/-1;grid-row:2}.back-top{right:14px;bottom:16px;padding:11px 14px}.chapter-progress{font-size:11px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Collapsible menu on desktop and mobile. */
header.site-header{position:sticky;justify-content:space-between}.has-nav-js .menu-toggle{display:flex}.has-nav-js .site-header .site-nav:not(.is-open){display:none}.has-nav-js .site-header .site-nav.is-open{display:flex;position:absolute;right:5%;top:calc(100% - 1px);width:min(360px,90vw);flex-direction:column;align-items:stretch;gap:0;padding:12px;background:var(--paper);border:1px solid var(--line);border-radius:0 0 8px 8px;box-shadow:0 12px 24px #223d3520}.site-nav.is-open>a{padding:14px 16px;border-bottom:1px solid var(--line);font-size:15px}.site-nav.is-open>a:last-child{border-bottom:0}.site-nav.is-open>a[aria-current]{background:#e9eee4;border-left:3px solid var(--gold)}@media(max-width:800px){.has-nav-js .site-header .site-nav.is-open{right:22px;width:calc(100% - 44px);margin:0;flex-basis:auto}}