/* Generated from phase2d-usefulness.css: navigation shell only. */
:root{--p2d-ink:#17212b;--p2d-muted:#5c6875;--p2d-line:#d9e2e8;--p2d-accent:#087f8c;--p2d-soft:#eef8f8;--p2d-paper:#fff}
.phase2d-breadcrumb>a,.phase2d-breadcrumb>span[aria-hidden]{flex-shrink:0;white-space:nowrap}
.phase2d-site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);border-bottom:1px solid var(--p2d-line)}
.phase2d-nav{max-width:1180px;margin:auto;min-height:64px;padding:0 20px;display:flex;align-items:center;gap:22px}
.phase2d-brand{font-weight:900;letter-spacing:.08em;color:var(--p2d-ink);text-decoration:none}
.phase2d-nav-links{margin-left:auto;display:flex;align-items:center;gap:6px}
.phase2d-nav-links a{padding:10px 9px;border-radius:8px;color:var(--p2d-ink);text-decoration:none;font-size:.92rem}
.phase2d-nav-links a:hover,.phase2d-nav-links a:focus-visible,.phase2d-nav-links a[aria-current=page]{background:var(--p2d-soft);color:#075c65}
.phase2d-menu-toggle{display:none;margin-left:auto;padding:9px 13px;border:1px solid var(--p2d-line);border-radius:8px;background:white}
.phase2d-breadcrumb{max-width:1180px;margin:14px auto;padding:0 20px;display:flex;gap:8px;color:var(--p2d-muted);font-size:.9rem}
.phase2d-site-footer{margin-top:60px;padding:32px max(20px,calc((100% - 1140px)/2));background:#102a32;color:#e8f5f5;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.phase2d-site-footer nav{display:flex;gap:18px}
.phase2d-site-footer a{color:#fff}
@media(max-width:880px){.phase2d-menu-toggle{display:block}
.phase2d-nav-links{display:none;position:absolute;left:12px;right:12px;top:58px;padding:12px;background:#fff;border:1px solid var(--p2d-line);border-radius:12px;box-shadow:0 12px 30px rgba(0,0,0,.14);flex-direction:column;align-items:stretch}
.phase2d-nav-links[data-open=true]{display:flex}
.phase2d-nav-links a{padding:12px}
.phase2d-site-footer{display:block}
.phase2d-site-footer nav{margin-top:14px;flex-wrap:wrap}
}
@media(max-width:880px){.phase2d-site-header:not([data-menu-ready="true"]){position:static}
.phase2d-site-header:not([data-menu-ready="true"]) .phase2d-nav{flex-wrap:wrap;padding-block:12px;gap:10px}
.phase2d-site-header:not([data-menu-ready="true"]) .phase2d-nav-links{display:flex;position:static;margin:0;width:100%;flex-direction:row;flex-wrap:wrap;padding:0;border:0;box-shadow:none}
.phase2d-site-header:not([data-menu-ready="true"]) .phase2d-nav-links a{padding:8px}
.phase2d-site-header:not([data-menu-ready="true"]) .phase2d-menu-toggle{display:none}
}