.bg{background:var(--brand-white);color:var(--brand-gray);padding:clamp(48px,7vw,96px) 28px}.bg-inner{width:min(1180px,100%);margin:0 auto}.bg-wide{width:min(900px,100%);margin:0 auto}.bg-narrow{width:min(700px,100%);margin:0 auto}.bg-eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--brand-blue);margin:0 0 12px;font-size:.8rem;font-weight:800}.bg h1{font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);overflow-wrap:anywhere;margin:0;font-size:clamp(2.2rem,5.2vw,3.8rem);font-weight:800;line-height:1.08}.bg-intro{max-width:68ch;margin:20px 0 0;font-size:1.125rem;line-height:1.65}.bg-crumbs ol{flex-wrap:wrap;align-items:center;gap:0 8px;margin:0 0 24px;padding:0;font-size:.9rem;list-style:none;display:flex}.bg-crumbs li{align-items:center;display:flex}.bg-crumbs li+li:before{content:"/";color:var(--brand-gray);margin-right:8px}.bg-crumbs a{min-width:44px;min-height:44px;color:var(--brand-blue);justify-content:center;align-items:center;text-decoration:underline;display:inline-flex}.bg-crumbs [aria-current]{color:var(--brand-gray);overflow-wrap:anywhere}@media (max-width:600px){.bg-crumbs [aria-current]{flex-basis:100%;padding-bottom:8px}.bg-crumbs [aria-current]:before{display:none}}.bg-meta{flex-wrap:wrap;align-items:center;gap:12px 20px;margin:24px 0 0;font-size:.95rem;display:flex}.bg-tag{min-height:28px;color:var(--brand-blue);background:#eef7ff;border-radius:999px;align-items:center;padding:0 12px;font-size:.8rem;font-weight:700;display:inline-flex}.bg-who{align-items:center;gap:12px;display:flex}.bg-who img{object-fit:cover;background:#eef7ff;border-radius:50%;flex:none;width:44px;height:44px}.bg-who-name{color:var(--brand-black);font-weight:700;display:block}.bg-who-role{font-size:.82rem;display:block}.bg-dates{flex-wrap:wrap;gap:4px 16px;display:flex}.bg-dates time{white-space:nowrap}.bg-updated{color:var(--brand-black);font-weight:600}.bg-banner{margin:32px 0 0}.bg-photo{margin:28px 0}.bg-banner img,.bg-photo img{aspect-ratio:16/9;object-fit:cover;background:linear-gradient(135deg, var(--brand-blue), var(--brand-sky));border-radius:8px;width:100%;height:auto;display:block}.bg-photo img{aspect-ratio:3/2}.bg-banner figcaption,.bg-photo figcaption,.bg-diagram figcaption{margin-top:10px;font-size:.85rem;line-height:1.5}.bg-short{border-left:6px solid var(--brand-blue);background:#f4f8fc;border-radius:8px;margin:32px 0 0;padding:20px 24px}.bg-short p{color:var(--brand-black);margin:0;font-size:clamp(1.1rem,2vw,1.28rem);font-weight:500;line-height:1.6}.bg-take h2,.bg-short h2{letter-spacing:.1em;text-transform:uppercase;font-size:.95rem;font-family:var(--font-heading), system-ui, sans-serif;margin:0 0 8px;font-weight:800}.bg-short h2{color:var(--brand-blue)}.bg-take{background:var(--brand-blue);color:var(--brand-white);border-radius:8px;margin:20px 0 0;padding:24px 28px}.bg-take h2{color:var(--brand-white)}.bg-take ul{gap:12px;margin:0;padding:0;list-style:none;display:grid}.bg-take li{padding-left:34px;line-height:1.55;position:relative}.bg-take li:before{content:"";border-left:3px solid var(--brand-white);border-bottom:3px solid var(--brand-white);width:14px;height:7px;position:absolute;top:.35em;left:2px;transform:rotate(-45deg)}.bg-toc{border:1px solid #0052ab24;border-radius:8px;margin:20px 0 0}.bg-toc-nav h2{font-size:1.1rem;font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);margin:0;padding:16px 20px 8px;font-weight:800}.bg-toc-nav ol{margin:0;padding:0 20px 16px 44px}.bg-toc-details{display:none}.bg-toc-details summary{cursor:pointer;min-height:48px;font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);justify-content:space-between;align-items:center;padding:0 20px;font-weight:800;list-style:none;display:flex}.bg-toc-details summary::-webkit-details-marker{display:none}.bg-toc-details summary:after{content:"+";font-size:1.5rem;line-height:1}.bg-toc-details[open] summary:after{content:"−"}.bg-toc-details ol{margin:0;padding:0 20px 16px 44px}.bg-toc a{min-height:44px;color:var(--brand-blue);align-items:center;text-decoration:none;display:inline-flex}.bg-toc a:hover{text-decoration:underline}@media (max-width:640px){.bg-toc-nav{display:none}.bg-toc-details{display:block}}.bg-body section{margin-top:56px;scroll-margin-top:96px}.bg-body h2,.bg-faq h2,.bg-related h2{font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);margin:0 0 16px;font-size:clamp(1.5rem,3vw,2rem);font-weight:800;line-height:1.2}.bg-body p,.bg-body li,.bg-faq p{font-size:1.0625rem;line-height:1.7}.bg-body p,.bg-faq p{margin:16px 0 0}.bg-body ul{margin:16px 0 0;padding-left:24px}.bg-body li+li{margin-top:8px}.bg-body a,.bg-faq a{color:var(--brand-blue);text-decoration:underline}.bg-stat{background:#eef7ff;border:1px solid #0052ab24;border-radius:8px;align-items:center;gap:8px 28px;margin:28px 0;padding:24px 28px;display:grid}.bg-body .bg-stat-num{font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);margin:0;font-size:clamp(2.6rem,6vw,4rem);font-weight:800;line-height:1}.bg-body .bg-stat-label,.bg-body .bg-stat-src{margin:0}.bg-stat-src a{align-items:center;min-height:44px;display:inline-flex}.bg-stat-label{color:var(--brand-black);margin:0;font-weight:600}.bg-stat-src{margin:0;font-size:.85rem}@media (min-width:620px){.bg-stat{grid-template-columns:auto minmax(16rem,1fr)}.bg-stat-src{grid-column:2}}.bg-table-wrap{background:linear-gradient(to right, var(--brand-white) 30%, transparent) left center / 40px 100% no-repeat local, linear-gradient(to left, var(--brand-white) 30%, transparent) right center / 40px 100% no-repeat local, radial-gradient(farthest-side at 0 50%, #0052ab47, transparent) left center / 14px 100% no-repeat scroll, radial-gradient(farthest-side at 100% 50%, #0052ab47, transparent) right center / 14px 100% no-repeat scroll;border:1px solid #0052ab24;border-radius:8px;margin:28px 0;overflow-x:auto}.bg-table{border-collapse:collapse;width:100%;min-width:520px}.bg-table caption{text-align:left;font-size:1.1rem;font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);padding:14px 16px;font-weight:800}.bg-table th,.bg-table td{text-align:left;vertical-align:top;border-top:1px solid #0052ab24;padding:14px 16px;font-size:.95rem;line-height:1.5}.bg-table thead th{text-transform:uppercase;letter-spacing:.04em;color:var(--brand-blue);background:#0052ab12;font-size:.82rem}.bg-table tbody th{width:26%;color:var(--brand-black);font-weight:700}.bg-table td.bg-good{color:var(--brand-black);background:#0052ab0a;font-weight:600}.bg-diagram{background:#eef7ff;border:1px solid #0052ab24;border-radius:8px;margin:28px 0;padding:20px 16px}.bg-diagram svg{width:100%;height:auto}.bg-diagram .bg-diagram-h{display:block}.bg-diagram .bg-diagram-v{display:none}@media (max-width:619px){.bg-diagram .bg-diagram-h{display:none}.bg-diagram .bg-diagram-v{display:block}}.sf-box{fill:var(--brand-white);stroke:var(--brand-blue);stroke-width:2px}.sf-num{fill:var(--brand-blue)}.sf-numt{fill:var(--brand-white);font:800 15px var(--font-heading), system-ui, sans-serif}.sf-t{fill:var(--brand-black);font:700 15px var(--font-body), system-ui, sans-serif}.sf-s{fill:var(--brand-gray);font:500 12.5px var(--font-body), system-ui, sans-serif}.sf-arrow{stroke:var(--brand-sky);stroke-width:2.5px;fill:none}.sf-head{fill:var(--brand-sky)}.bg-faq{margin-top:56px}.bg-faq details{border:1px solid #0052ab24;border-radius:8px;margin-top:12px}.bg-faq summary{cursor:pointer;min-height:56px;font-size:1.15rem;line-height:1.3;font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);align-items:center;padding:14px 56px 14px 20px;font-weight:800;list-style:none;display:flex;position:relative}.bg-faq summary::-webkit-details-marker{display:none}.bg-faq summary:after{content:"+";margin-top:-.6em;font-size:1.5rem;line-height:1.2;transition:transform .2s;position:absolute;top:50%;right:20px}.bg-faq details[open] summary:after{transform:rotate(45deg)}.bg-faq details p{margin:0;padding:0 20px 20px}.bg-author{background:#f4f8fc;border:1px solid #0052ab24;border-radius:8px;grid-template-columns:auto 1fr;gap:20px;margin-top:64px;padding:28px;display:grid}.bg-author img{object-fit:cover;background:#eef7ff;border-radius:50%;width:88px;height:88px}.bg-author-kicker,.bg-author-role{text-transform:uppercase;letter-spacing:.08em;margin:0;font-size:.8rem;font-weight:800}.bg-author h2{font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);margin:0;font-weight:800}.bg-author-role{color:var(--brand-blue)}@media (max-width:480px){.bg-author{grid-template-columns:1fr}}.bg-related{margin-top:56px}.bg-related ul{gap:8px;margin:0;padding:0;list-style:none;display:grid}.bg-related a{min-height:44px;color:var(--brand-blue);border:1px solid #0052ab1f;border-radius:8px;align-items:center;padding:8px 16px;font-weight:700;text-decoration:none;transition:background-color .2s,box-shadow .2s;display:flex}.bg-related a:hover{background:#eef7ff;box-shadow:0 12px 30px #0052ab0f}.bg-book{background:#eef7ff;border:1px solid #0052ab1f;border-radius:8px;margin-top:64px;padding:clamp(24px,4vw,40px)}.bg-book h2{font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);margin:0;font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800;line-height:1.15}.bg-book-lede{margin:12px 0 0;font-size:1.0625rem;line-height:1.65}.bg-contact-list{flex-wrap:wrap;gap:12px;margin:20px 0 0;padding:0;list-style:none;display:flex}.bg-contact-list a{background:var(--brand-blue);min-height:44px;color:var(--brand-white);overflow-wrap:anywhere;border-radius:999px;justify-content:center;align-items:center;padding:0 20px;font-weight:700;text-decoration:none;transition:background-color .2s;display:inline-flex}.bg-contact-list a:hover{background:var(--brand-sky)}.bg-contact-list li:nth-child(n+2) a{background:var(--brand-white);color:var(--brand-blue);border:1px solid var(--brand-blue)}.bg-contact-list li:nth-child(n+2) a:hover{background:#f4f8fc}.bg-book .bk-wrap{margin-top:24px}.bg a:focus-visible,.bg button:focus-visible,.bg summary:focus-visible,.bg-book a:focus-visible{outline:3px solid var(--brand-sky);outline-offset:3px}.bg-filter{flex-wrap:wrap;gap:8px;margin:24px 0 0;display:flex}.bg-filter button{background:var(--brand-white);min-height:44px;color:var(--brand-blue);font:700 .85rem var(--font-body), system-ui, sans-serif;cursor:pointer;border:1px solid #0052ab24;border-radius:999px;padding:0 16px}.bg-filter button[aria-pressed=true]{background:var(--brand-blue);color:var(--brand-white)}.bg-grid{grid-template-columns:minmax(0,1fr);gap:24px;margin:32px 0 0;padding:0;list-style:none;display:grid}.bg-card{min-width:0;height:100%}.bg-card a{box-sizing:border-box;background:var(--brand-white);height:100%;color:var(--brand-gray);border:1px solid #0052ab24;border-radius:8px;flex-direction:column;text-decoration:none;transition:transform .2s,box-shadow .2s;display:flex;overflow:hidden;box-shadow:0 12px 30px #0052ab0f}.bg-card a:hover{transform:translateY(-3px);box-shadow:0 12px 30px #0052ab24}.bg-card-thumb{aspect-ratio:16/9;background:linear-gradient(135deg, var(--brand-blue), var(--brand-sky));overflow:hidden}.bg-card-thumb img{object-fit:cover;width:100%;height:100%;display:block}.bg-card-body{flex-direction:column;flex:1;gap:10px;padding:20px;display:flex}.bg-card h2{font-family:var(--font-heading), system-ui, sans-serif;color:var(--brand-blue);text-wrap:wrap;max-width:none;margin:0;font-size:1.25rem;font-weight:800;line-height:1.2}.bg-card-desc{white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:.92rem;line-height:1.6;overflow:hidden}.bg-card-meta{flex-wrap:wrap;gap:4px 14px;margin-top:auto;font-size:.8rem;font-weight:600;display:flex}.bg-empty{margin-top:40px;font-size:1.0625rem}@media (min-width:768px){.bg-grid,.bg-related ul{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1100px){.bg-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:400px){.bg{padding-left:16px;padding-right:16px}.bg-contact-list li,.bg-contact-list a{box-sizing:border-box;width:100%}}@media (prefers-reduced-motion:reduce){.bg-card a,.bg-related a,.bg-contact-list a,.bg-faq summary:after{transition:none}.bg-card a:hover{transform:none}}.bg-cross{min-height:44px;color:var(--brand-blue);align-items:center;font-weight:700;text-decoration:underline;display:inline-flex}.bg-sources{gap:8px;margin:0;padding:0;list-style:none;display:grid}.bg-sources li{overflow-wrap:anywhere;padding:8px 0;font-size:1rem;line-height:1.6}.bg-related .bg-sources a{min-height:0;color:var(--brand-blue);border:0;border-radius:0;padding:4px 0;font-weight:600;text-decoration:underline;display:inline}.bg-related .bg-sources a:hover{box-shadow:none;background:0 0}