body{margin:0}.book-page{--navy:#1c3462;--amber:#e07b39;--amber-hover:#c96a2f;--bg:#f5f4f0;--light-navy:#f0f3f8;background:var(--navy);min-height:100dvh;font-family:"Source Sans 3",Inter,system-ui,sans-serif}@media (max-width:640px){.book-topbar{padding:10px 20px 0}.book-page .contact{padding:12px 0 40px}.book-page .contact h2{font-size:21px}}.book-topbar{max-width:1100px;margin:0 auto;padding:20px 24px 0}.book-home-link{color:#fff;opacity:.85;font-size:15px;font-weight:600;text-decoration:none}.book-home-link:hover{opacity:1}.book-page .contact{padding:32px 0 64px}.book-page .container{max-width:1100px;margin:0 auto;padding:0 24px}.book-page .contact h2{color:#fff;text-align:center;margin:0 0 8px;font-size:clamp(26px,4vw,34px)}