:root{--navy:#10233f;--navy2:#172f50;--ink:#18212c;--muted:#586575;--paper:#f7f5ef;--white:#fff;--cyan:#087f9c;--line:#d9dee3;--max:1120px;--serif:Georgia,"Times New Roman",serif;--sans:system-ui,-apple-system,"Segoe UI",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--white);font-family:var(--sans);margin:0;font-size:1.05rem;line-height:1.65}img{max-width:100%;height:auto}a{color:#086e87;text-underline-offset:.2em}a:hover{color:#064f63}a:focus-visible,summary:focus-visible{outline-offset:4px;border-radius:2px;outline:3px solid #00a7cf}.wrap{width:min(calc(100% - 2.5rem),var(--max));margin-inline:auto}.narrow{max-width:780px}h1,h2,h3{font-family:var(--serif);color:var(--navy);margin:0 0 .7em;line-height:1.12}h1{letter-spacing:-.035em;font-size:clamp(2.5rem,6vw,4.8rem)}h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}h3{font-size:1.4rem}p{margin:0 0 1.2rem}.skip{z-index:10;color:#000;background:#fff;padding:.6rem 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li{margin-bottom:.55rem}.article-body blockquote{border-left:4px solid var(--cyan);background:var(--paper);margin:1.8rem 0;padding:1rem 1.4rem}.related{border-top:1px solid var(--line);margin-top:3rem;padding-top:2rem}.related ul{text-transform:capitalize;display:block}.hub-steps{grid-template-columns:repeat(4,1fr);gap:1rem;display:grid}.hub-steps article{border-top:4px solid var(--cyan);background:#fff;padding:1.2rem}.site-footer{background:var(--navy);color:#d8e1ed;padding:4rem 0 1.5rem}.footer-grid{justify-content:space-between;gap:3rem;display:flex}.footer-grid nav{grid-template-columns:1fr 1fr;gap:.6rem 2rem;display:grid}.site-footer a{color:#fff}.fine{border-top:1px solid #536278;margin-top:2.5rem;padding-top:1.2rem}.prose{max-width:750px}.prose h2{margin-top:2.5rem}@media (width<=720px){body{font-size:1rem}.nav-wrap{min-height:70px}.brand strong{font-size:.9rem}.desktop-nav{display:none}.mobile-nav{display:block}.mobile-nav details{position:relative}.mobile-nav details ul{border:1px solid var(--line);z-index:4;background:#fff;width:190px;padding:1rem;display:grid;position:absolute;top:2.5rem;right:0;box-shadow:0 8px 30px #10233f22}.mobile-nav details:not([open]) ul{display:none}.hero-grid,.book-layout{grid-template-columns:1fr}.hero-copy{order:1}.cover-shell{max-width:240px}.hero .cover-shell{max-width:260px}.cover-large{max-width:280px}.grid-3,.hub-steps,.check-grid{grid-template-columns:1fr}.footer-grid{display:grid}.footer-grid nav{grid-template-columns:1fr 1fr}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}