@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700&family=DM+Sans:wght@400;500;600;700&display=swap');
:root{--navy:#112c42;--blue:#287fb3;--teal:#248c9e;--gold:#dfbb51;--paper:#f7f6f0;--ink:#17334a}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--paper);color:var(--ink);font-family:'DM Sans',Arial,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button,input{font:inherit}a,button,input{outline-offset:5px}a:hover{text-decoration:underline}img{max-width:100%;display:block}.skip{position:fixed;top:-100px;z-index:20;padding:12px;background:white}.skip:focus{top:0}.preview{background:var(--navy);color:#fff;text-align:center;font-size:10px;letter-spacing:1.6px;padding:6px}.preview span{opacity:.7;letter-spacing:.2px;margin-left:16px}header{display:flex;align-items:center;justify-content:space-between;max-width:1440px;margin:auto;padding:20px 5%;border-bottom:1px solid #15364a22}.brand{display:flex;align-items:center;gap:12px}.brand img{width:77px;height:65px;object-fit:contain}.brand span{font-size:11px;line-height:1.3;letter-spacing:1.7px}.brand strong{font-size:17px;letter-spacing:2px}nav{display:flex;gap:29px;align-items:center;font-size:12px;font-weight:600}.navcta{border:1px solid #163a4c;padding:10px 16px}.menu{display:none}.hero{max-width:1440px;margin:auto;display:grid;grid-template-columns:1.05fr 1fr;min-height:690px;padding:65px 7% 60px;gap:5%;overflow:hidden}.eyebrow{font-size:10px;font-weight:700;letter-spacing:2.4px;margin:0 0 22px;color:#38637a}h1,h2{font-family:'Barlow Condensed','Arial Narrow',Arial,sans-serif;font-weight:600;line-height:.99;letter-spacing:-1px;margin:0}h1{font-size:clamp(64px,6.7vw,100px)}h1 em,h2 em{font-style:normal;color:#268797}h2{font-size:clamp(44px,4.5vw,65px)}.intro{font-size:15px;line-height:1.8;max-width:440px;margin:28px 0}.actions{display:flex;gap:23px;align-items:center;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:32px;padding:16px 22px;font-size:12px;font-weight:700;min-height:52px;border-radius:3px}.gold{background:var(--gold);color:#182b36}.navy{background:var(--navy);color:white}.textlink{font-size:11px;border-bottom:1px solid #7b949d;padding:6px 0}.small{font-size:8px;letter-spacing:1.7px;margin-top:30px;color:#57727e}.hero-art{position:relative;background:#e3ede9;display:flex;justify-content:center;align-items:center;border-radius:50% 50% 5px 5px;min-height:560px;margin-top:0}.book-cover{position:relative;z-index:2;width:62%;max-height:505px;object-fit:contain;filter:drop-shadow(12px 25px 14px #163a4c38);transform:rotate(5deg)}.orbit{position:absolute;border:1px solid #b8ccc5;border-radius:50%;width:120%;height:85%;transform:rotate(-35deg)}.artlabel{position:absolute;top:18px;left:10px;font-size:9px;letter-spacing:2px;transform:rotate(-8deg)}.art-note{position:absolute;bottom:-13px;right:-25px;background:var(--navy);color:white;z-index:3;padding:21px 27px;transform:rotate(-3deg)}.art-note span{font-size:8px;letter-spacing:1.4px;color:var(--gold)}.art-note b{display:block;font-size:15px;line-height:1.5;margin-top:8px}.ribbon{display:flex;justify-content:space-around;background:var(--navy);color:#dde7e9;padding:22px 5%;font-size:10px;letter-spacing:2px}.section{padding:95px 8%;max-width:1440px;margin:auto}.book-section{display:grid;grid-template-columns:1fr 1fr;gap:10%;border-bottom:1px solid #13374c20}.book-section p,.app-section p{font-size:14px;max-width:470px}.book-section .lead{font-size:22px;line-height:1.4;margin-top:0}.caption{font-size:10px!important;color:#617783}.app-section{display:grid;grid-template-columns:1fr 1fr;gap:10%;background:#e6efed;align-items:center}.app-art{height:560px;display:flex;align-items:center;justify-content:center;position:relative}.app-art img{width:47%;max-height:500px;object-fit:cover;object-position:top;border:7px solid #163443;border-radius:25px;box-shadow:10px 18px 30px #17334a29}.app-art img:first-child{transform:rotate(-9deg) translateX(10px);margin-top:70px}.app-art img:last-child{transform:rotate(8deg) translateX(-8px);margin-top:-50px}.feature-list{list-style:none;padding:0;margin:28px 0}.feature-list li{border-bottom:1px solid #24495a26;padding:10px 0;font-size:12px}.feature-list span{font-size:9px;color:#648491;margin-right:25px}.underlink{display:block;text-decoration:underline;text-underline-offset:5px;font-size:12px;margin-top:20px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:50px}.section-head>p{max-width:310px;font-size:13px}.resource-controls{display:flex;align-items:center;gap:20px;margin:45px 0 25px;font-size:11px}.resource-controls input{padding:14px 18px;background:white;border:1px solid #a7b9bd;border-radius:2px;flex:1;max-width:450px}.chapters{display:grid;grid-template-columns:repeat(3,1fr);gap:0 32px}.chapter{border-top:1px solid #afbfc0;padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:20px}.chapter span{font-size:9px;color:#5a7c8a;letter-spacing:1px}.chapter h3{font-size:16px;line-height:1.3;margin:4px 0}.chapter b{color:#287f96;font-size:20px}.start{background:var(--navy);color:white;text-align:center}.start .eyebrow{color:var(--gold)}.start h2 em{color:#9bd0d2}.start p:not(.eyebrow){font-size:14px;max-width:470px;margin:25px auto}.start .actions{justify-content:center}.outline{border:1px solid #8aa3ae}footer{max-width:1440px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:40px 5%;flex-wrap:wrap;gap:25px}footer>div{display:flex;gap:24px;font-size:11px}footer>p{font-size:9px;color:#65808c;width:100%;margin:0}section[id]{scroll-margin-top:15px}@media(max-width:900px){nav{gap:15px}.brand span{display:none}.hero{padding:50px 6%;gap:25px;min-height:600px}.hero-art{min-height:470px}.section{padding:65px 6%}.app-section{gap:6%}.app-art{height:470px}.chapters{grid-template-columns:repeat(2,1fr)}}@media(max-width:650px){.preview{font-size:8px}.preview span{display:block;margin:0}header{padding:12px 6%;position:relative}.brand span{display:block;font-size:9px}.brand strong{font-size:14px}.brand img{width:58px;height:50px}.menu{display:block;border:0;background:none;font-size:24px;color:var(--ink)}nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--paper);z-index:10;padding:25px;box-shadow:0 10px 15px #1232}nav.open{display:flex;flex-direction:column;align-items:stretch}.hero{display:block;padding-top:38px}.hero-copy{position:relative;z-index:4}h1{font-size:70px}.intro{font-size:14px}.hero-art{margin:40px 15px 20px;min-height:450px}.book-cover{max-height:390px;width:60%}.art-note{right:-10px}.ribbon{gap:15px;font-size:8px;letter-spacing:.8px;text-align:center}.book-section,.app-section{grid-template-columns:1fr;gap:35px}.app-art{height:430px;grid-row:2}.app-art img{width:43%;max-height:400px}.section-head{display:block}.section-head>p{margin-top:25px}.resource-controls{flex-wrap:wrap}.resource-controls label{width:100%}.resource-controls input{min-width:0}.chapters{grid-template-columns:1fr}.chapter{padding:18px 0}.section{padding:55px 6%}.start h2{font-size:52px}footer>div{flex-wrap:wrap;gap:18px}.actions{gap:18px}.button{font-size:11px}}

dialog{width:min(1000px,94vw);max-height:90vh;border:0;background:var(--paper);color:var(--ink);padding:30px;border-radius:5px}dialog::backdrop{background:#0c2336c9}.dialog-head{display:flex;align-items:start;justify-content:space-between;gap:20px}.dialog-head h2{font-size:35px;line-height:1.1}.dialog-head button{border:0;background:none;color:var(--ink);font-size:32px;line-height:1;cursor:pointer}dialog>p{font-size:12px}#gallery-images{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}#gallery-images img{width:100%;height:340px;object-fit:contain;background:white}@media(max-width:650px){#gallery-images{grid-template-columns:1fr}dialog{padding:20px}.dialog-head h2{font-size:28px}}

/* supporting pages */

.page-intro{max-width:1440px;margin:auto;padding:45px 8% 55px;background:#e7efec}.breadcrumb{display:inline-block;font-size:10px;text-decoration:underline;margin-bottom:35px}.page-intro h1{font-size:clamp(55px,6vw,82px)}.page-intro>p:last-child{font-size:15px;max-width:650px;line-height:1.8;margin:25px 0 0}.page-intro h1 em{color:#268797}.simple-two{display:grid;grid-template-columns:1fr 1fr;gap:10%}.simple-two p{font-size:14px;max-width:470px}.help-links>a{display:block;border-top:1px solid #a8bcc1;padding:23px 0}.help-links span{font-size:9px;letter-spacing:1.6px;color:#38637a}.help-links h3{font-size:20px;line-height:1.3;margin:8px 0}.help-links p{font-size:13px}.legal-copy{max-width:850px;margin:0 auto;padding:60px 30px 90px;font-size:14px;line-height:1.9}.legal-copy h2{font-family:'DM Sans',Arial,sans-serif;font-size:21px;letter-spacing:0;line-height:1.3;margin:35px 0 15px}.legal-copy p{overflow-wrap:anywhere}.library-section{max-width:1440px;margin:auto;padding:40px 8% 80px}.library-tools{display:flex;gap:20px;align-items:center;margin-bottom:35px;flex-wrap:wrap;font-size:11px}.library-tools input{padding:13px 16px;border:1px solid #a8bcc1;background:white;flex:1;min-width:200px}.library-tools button{border:1px solid #17334a;background:transparent;padding:12px 16px;cursor:pointer;color:var(--ink)}.chapter-group{border-top:1px solid #adc0c0;scroll-margin-top:25px}.chapter-group[hidden]{display:none}.chapter-group summary{list-style:none;display:flex;align-items:center;gap:30px;padding:25px 0;cursor:pointer}.chapter-group summary::-webkit-details-marker{display:none}.chapter-group summary>span{font-size:10px;letter-spacing:1.6px;width:110px;flex-shrink:0;color:#426b7e}.chapter-group summary h2{font-family:'DM Sans',Arial,sans-serif;font-size:23px;letter-spacing:-.5px;line-height:1.3;flex:1}.chapter-group summary>b{font-size:10px;font-weight:400;white-space:nowrap}.chapter-group summary i{font-size:22px;font-style:normal;margin-left:20px}.chapter-group[open] summary i{display:inline-block;transform:rotate(45deg)}.chapter-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding-bottom:35px}.illustration{background:white;border:1px solid #d1deda;padding:12px}.illustration img{width:100%;height:300px;object-fit:contain}.illustration span{font-size:10px;padding:12px 0 0;display:block}.resource-bottom{background:var(--navy);color:white;text-align:center;padding:70px 7%}.resource-bottom h2{font-size:45px}.resource-bottom p{font-size:14px;margin:20px auto;max-width:550px}@media(max-width:650px){.page-intro{padding:30px 6% 45px}.page-intro h1{font-size:59px}.simple-two{grid-template-columns:1fr;gap:40px}.library-section{padding:30px 6% 55px}.library-tools{gap:12px}.library-tools label{width:100%}.library-tools input{width:100%;flex-basis:100%}.chapter-group summary{gap:12px;flex-wrap:wrap;padding:20px 0}.chapter-group summary>span{width:100%}.chapter-group summary h2{font-size:19px}.chapter-group summary i{margin-left:10px}.chapter-gallery{grid-template-columns:1fr}.illustration img{height:340px}.legal-copy{padding:35px 6% 60px}}

.chapter-gallery:has(>a:only-child){grid-template-columns:minmax(0,540px)}