:root{--navy:#18263b;--slate:#243951;--gold:#e7ad43;--deep-gold:#8a5b13;--ivory:#f8f5ef;--mist:#e9edf0;--muted:#c6ced8;--ink-soft:#49566a;--line:#cbd0d5;--serif:Georgia,"Times New Roman",serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--container:1240px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{background:var(--ivory);color:var(--navy);font:19px/1.6 var(--serif);-webkit-font-smoothing:antialiased;margin:0}a{color:inherit;text-underline-offset:5px}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:6px}img{max-width:100%;height:auto;display:block}h1,h2,h3,p{margin-top:0}h1,h2,h3{text-wrap:balance;font-weight:400;line-height:1.12}h1{letter-spacing:-.045em;margin-bottom:28px;font-size:clamp(44px,5.15vw,74px)}h2{letter-spacing:-.035em;margin-bottom:22px;font-size:clamp(34px,3.6vw,49px)}h3{letter-spacing:-.025em;margin-bottom:14px;font-size:28px}p{margin-bottom:20px}p:last-child{margin-bottom:0}svg{flex-shrink:0}.container{max-width:var(--container);width:calc(100% - 112px);margin-inline:auto}.section{padding:86px 0}.navy{background:var(--navy);color:var(--ivory)}.ivory{background:var(--ivory)}.mist{background:var(--mist)}.lede{color:var(--ink-soft);max-width:740px;font-size:25px;line-height:1.4}.navy .lede{color:var(--muted)}.eyebrow{font:600 12px/1.5 var(--sans);letter-spacing:.17em;text-transform:uppercase;color:var(--deep-gold);margin-bottom:22px}.gold{color:var(--gold)}.accent-rule:before{content:"";background:var(--gold);width:62px;height:4px;margin-bottom:22px;display:block}.author-name{font:600 17px/1.5 var(--sans);letter-spacing:.15em;text-transform:uppercase}.meta{font:13px/1.7 var(--sans);color:var(--ink-soft)}.credentials{font:14px/1.7 var(--sans);letter-spacing:.05em}.text-link{font:500 16px/1.5 var(--sans);color:var(--deep-gold);align-items:center;gap:14px;text-decoration-thickness:1px;display:inline-flex}.text-link:hover{text-decoration-thickness:2px}.actions{flex-wrap:wrap;align-items:center;gap:18px;margin-top:30px;display:flex}.button{min-height:50px;font:600 15px/1.45 var(--sans);text-align:center;border:1px solid #0000;border-radius:3px;justify-content:center;align-items:center;gap:12px;padding:12px 24px;text-decoration:none;transition:background-color .15s,color .15s,box-shadow .15s;display:inline-flex}.button-gold{background:var(--gold);color:var(--navy);border-color:var(--gold)}.button-gold:hover{background:#f0bd60;border-color:#f0bd60}.button-outline{border-color:var(--muted);color:var(--ivory);background:0 0}.button-outline:hover{background:var(--slate)}.button-navy{background:var(--navy);color:var(--ivory)}.button-navy:hover{background:var(--slate)}.button-meta{opacity:.8;white-space:nowrap;font-size:11px;font-weight:400}.button-download{white-space:nowrap;border-color:#87909d;font-size:14px}.button-download:hover{background:var(--navy);color:var(--ivory)}.skip-link{z-index:10;background:var(--gold);color:var(--navy);font:600 16px var(--sans);padding:10px 20px;position:fixed;top:12px;left:12px;transform:translateY(-180%)}.skip-link:focus{transform:translateY(0)}.mobile-break{display:none}.site-header{background:var(--navy);color:var(--ivory)}.header-inner{justify-content:space-between;align-items:center;gap:28px;min-height:96px;display:flex}.brand{white-space:nowrap;font:500 12px/1.5 var(--sans);letter-spacing:.22em;text-transform:uppercase;align-items:center;gap:16px;text-decoration:none;display:inline-flex}.brand-mark{border:3px solid var(--gold);border-radius:50%;flex-shrink:0;width:37px;height:37px;display:inline-block}.site-header nav{font:14px/1.5 var(--sans);align-items:center;gap:30px;display:flex}.site-header nav>a:not(.button){padding:12px 0;text-decoration:none}.site-header nav>a:not(.button):hover,.site-header nav>a[aria-current=page]{color:var(--gold)}.site-header nav>a[aria-current=page]{text-underline-offset:8px;text-decoration:underline}.nav-button{min-height:42px;padding:9px 21px;font-size:13px}.book-hero{overflow:hidden}.hero-grid{grid-template-columns:1.38fr 1fr;align-items:center;gap:25px;min-height:720px;padding-top:62px;padding-bottom:84px;display:grid}.hero-copy{z-index:1;position:relative}.hero-copy h1{max-width:780px}.hero-subtitle{color:var(--muted);max-width:650px;margin-bottom:30px;font-size:clamp(23px,2.2vw,30px);font-style:italic;line-height:1.35}.hero-promise{max-width:620px;margin-top:44px;font-size:23px;line-height:1.45}.availability{font:13px/1.6 var(--sans);color:var(--muted);margin-top:18px}.book-scene{perspective:1800px;justify-content:center;align-items:center;min-height:550px;padding:24px 12px 24px 36px;display:flex;position:relative}.book-object{width:min(100%,350px);transform-style:preserve-3d;z-index:1;position:relative;transform:rotateY(-12deg)rotate(-2deg);box-shadow:-16px 25px 35px #080e1880,0 0 0 1px #b4bec640}.book-object:after{content:"";transform-origin:0;background:repeating-linear-gradient(90deg,#e2dfd3 0 1px,#c4c1b7 2px,#ece9dd 3px);width:25px;height:calc(100% - 10px);position:absolute;top:5px;left:100%;transform:rotateY(68deg);box-shadow:3px 0 0 2px #22364d}.book-object:before{content:"";z-index:2;pointer-events:none;position:absolute;inset:0;box-shadow:inset 5px 0 6px #ffffff14,inset 10px 0 4px #00000020}.book-object img{width:100%;height:auto}.cover-orbit{border:16px solid var(--slate);opacity:.85;border-radius:50%;width:530px;height:530px;position:absolute;top:4%;left:49%}.cover-orbit i{border:4px solid var(--muted);background:var(--navy);border-radius:50%;width:24px;height:24px;position:absolute}.cover-orbit i:first-child{background:var(--gold);border-color:var(--gold);width:32px;height:32px;top:11%;left:12%}.cover-orbit i:nth-child(2){top:55%;left:-3%}.cover-orbit i:nth-child(3){bottom:4%;left:24%}.benefits{grid-template-columns:repeat(3,1fr);gap:36px;margin-top:44px;display:grid}.benefits>div+div{border-left:1px solid var(--line);padding-left:36px}.benefits p{color:var(--ink-soft);font-size:20px;line-height:1.5}.short-rule{background:var(--gold);width:28px;height:3px;margin-bottom:24px;display:block}.intro-copy{max-width:740px}.resource-preview{grid-template-columns:1.08fr 1fr;align-items:center;gap:76px;display:grid}.resource-preview .lede{font-size:24px}.resource-links{border-left:1px solid #bec7ce;padding-left:42px}.resource-link{border-bottom:1px solid #bec7ce;align-items:center;gap:20px;padding:24px 0;font-size:23px;line-height:1.25;text-decoration:none;display:flex}.resource-link:first-child{padding-top:8px}.resource-link:last-child{border-bottom:0}.resource-link small{font:12px/1.5 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-top:8px;display:block}.resource-link .arrow{font:24px var(--sans);margin-left:auto}.resource-link:hover>span:first-of-type{text-underline-offset:5px;text-decoration:underline}.inside-grid{grid-template-columns:1.05fr 1fr;gap:90px;display:grid}.inside-grid p:not(.eyebrow){max-width:570px}.inside-grid .button{margin-top:10px}.contents>h3{margin-bottom:22px}.contents details{border-bottom:1px solid var(--line)}.contents details:first-of-type{border-top:1px solid var(--line)}.contents summary{cursor:pointer;font:500 16px/1.5 var(--sans);justify-content:space-between;align-items:center;padding:18px 0;list-style:none;display:flex}.contents summary::-webkit-details-marker{display:none}.contents summary span{font-size:24px;line-height:1}.contents details[open] summary span{transform:rotate(45deg)}.contents ol{margin:0 0 22px;padding-left:27px}.contents li{margin-bottom:10px;padding-left:8px;font-size:17px;line-height:1.5}.contents li::marker{color:var(--deep-gold);font:13px var(--sans)}.author-grid{grid-template-columns:.85fr 1.15fr;gap:90px;display:grid}.author-grid>div:last-child{max-width:650px}.author-section .lede{font-size:27px}.page-hero{padding:66px 0 80px;overflow:hidden}.page-hero h1{font-size:clamp(46px,5.4vw,76px)}.page-hero .eyebrow{margin-top:28px}.page-hero .lede{max-width:760px}.about-hero-grid{grid-template-columns:1.35fr 1fr;align-items:center;gap:60px;display:grid}.about-hero-portrait{justify-content:center;display:flex}.portrait-frame{aspect-ratio:1;background:var(--slate);border-radius:6px;width:min(100%,300px);position:relative;overflow:hidden;box-shadow:0 20px 40px #080e1880,0 0 0 1px #e7ad4340}.portrait-frame img{object-fit:cover;width:100%;height:100%;display:block}.breadcrumb{font:13px/1.6 var(--sans);color:var(--muted);margin-bottom:12px;text-decoration:none;display:inline-block}.breadcrumb:hover{text-decoration:underline}.library-intro{justify-content:space-between;align-items:start;gap:45px;margin-bottom:44px;display:flex}.library-intro>p:first-child{max-width:610px;font-size:24px}.library-intro .meta{text-align:right;min-width:220px}.resource-entry{border-top:1px solid var(--line);grid-template-columns:115px 1fr auto;align-items:start;gap:36px;padding:36px 0;scroll-margin-top:30px;display:grid}.resource-entry h2{margin-bottom:15px;font-size:30px}.resource-entry p{max-width:650px;color:var(--ink-soft);font-size:18px}.resource-entry .meta{margin-top:16px;font-size:12px}.appendix-tag{font:600 12px/1.5 var(--sans);color:var(--deep-gold);text-transform:uppercase;letter-spacing:.1em;padding-top:7px}.resource-entry .button{margin-top:2px}.resource-notes{border-top:1px solid var(--line);max-width:760px;margin-top:40px;padding-top:44px}.resource-notes h2{font-size:33px}.resource-notes p{color:var(--ink-soft);font-size:18px}.reading-width{max-width:830px}.reading-width h2{margin-top:42px}.reading-width h2:first-child{margin-top:0}.reading-width p{font-size:21px;line-height:1.65}.reading-width p.lede{font-size:26px;line-height:1.45}.reading-width .meta{font-size:13px}.update-entry{border-bottom:1px solid var(--line);margin-bottom:44px;padding-bottom:44px}.update-entry .meta{margin-bottom:18px}.update-entry h2{margin-top:0}.quiet-note{color:var(--ink-soft);font-size:17px!important}.principle-hero{padding:75px 0 95px;overflow:hidden}.principle-grid{grid-template-columns:1.05fr 1fr;align-items:center;gap:40px;display:grid}.principle-hero h1{font-size:clamp(46px,5.4vw,78px)}.upright{font-style:normal}.principle-art{justify-content:center;width:100%;max-width:580px;margin:0 auto;display:flex;position:relative}.cycle-figure{width:100%;margin:0;position:relative}.cycle-svg{width:100%;height:auto;display:block;overflow:visible}.cycle-center-title{font:700 13px/1 var(--sans);letter-spacing:.18em;fill:var(--gold)}.cycle-center-sub{font:italic 15px/1 var(--serif);fill:var(--ivory)}.cycle-label{font:700 17px/1.2 var(--serif);fill:var(--ivory);letter-spacing:-.01em}.cycle-question{font:400 12.5px/1.35 var(--sans);fill:var(--muted)}.cycle-num{font:700 14px/1 var(--sans);fill:var(--ivory)}.cycle-step{transition:transform .2s}.cycle-step text{user-select:none}.principle-intro{max-width:900px}.principle-intro>p:not(.eyebrow){max-width:780px}.home-book-section{padding:60px 0;overflow:hidden}.home-book-grid{grid-template-columns:.8fr 1.2fr;align-items:center;gap:100px;display:grid}.home-book-grid>div:last-child>p:not(.eyebrow){color:var(--muted)}.compact{min-height:440px;padding:20px 40px 20px 12px}.compact .book-object{max-width:280px}.compact .cover-orbit{display:none}.site-footer{background:var(--navy);color:var(--ivory);padding:0 0 26px}.footer-cta{text-align:center;padding:54px 0 52px}.footer-cta h2{letter-spacing:-.02em;margin-bottom:26px;font-size:30px}.footer-bottom{border-top:1px solid #71809466;justify-content:space-between;align-items:center;gap:25px;padding:32px 0 26px;display:flex}.footer-bottom>div{text-align:right}.footer-bottom .author-name{font-size:13px}.footer-bottom p{font:11px/1.6 var(--sans);letter-spacing:.04em;color:var(--muted);margin:7px 0 0}.footer-fine{font:11px/1.6 var(--sans);color:var(--muted);justify-content:space-between;gap:20px;display:flex}.footer-fine>div{gap:24px;display:flex}.footer-fine a{text-decoration:none}.footer-fine a:hover{text-decoration:underline}@media (width>=1500px){.hero-grid{gap:65px}.book-object{width:365px}}@media (width<=1100px){.container{width:calc(100% - 72px)}.site-header nav{gap:20px}.brand{gap:12px;font-size:11px}.hero-grid{grid-template-columns:1.25fr 1fr;min-height:640px;padding-top:40px}.hero-copy h1{font-size:54px}.hero-subtitle{font-size:25px}.hero-promise{margin-top:30px;font-size:21px}.book-scene{min-height:460px;padding-left:20px}.book-object{width:290px}.resource-preview{gap:45px}.resource-links{padding-left:30px}.resource-link{font-size:21px}.inside-grid,.author-grid{gap:55px}.home-book-grid{gap:50px}.resource-entry{grid-template-columns:95px 1fr auto;gap:22px}.button-meta{display:block}.inside-grid .button,.page-hero .button{flex-wrap:wrap;gap:6px 12px}}@media (width<=820px){.container{width:calc(100% - 48px)}.header-inner{flex-direction:column;align-items:flex-start;gap:14px;padding:24px 0 18px}.site-header nav{justify-content:space-between;gap:16px;width:100%;font-size:13px}.nav-button{padding:8px 14px;font-size:12px}.brand-mark{width:31px;height:31px}.hero-grid{grid-template-columns:1.3fr 1fr;gap:12px;min-height:560px;padding:35px 0 55px}.hero-copy h1{font-size:44px}.hero-copy .eyebrow{letter-spacing:.12em;max-width:320px;font-size:10px}.hero-subtitle{font-size:22px}.author-name{font-size:14px}.hero-promise{font-size:20px}.hero-copy .actions{gap:12px}.hero-copy .button{padding:12px 15px;font-size:13px}.book-scene{min-height:350px;padding-left:10px}.book-object{width:240px}.cover-orbit{width:420px;height:420px}.section{padding:64px 0}.benefits{gap:24px}.benefits>div+div{padding-left:24px}.benefits h3{font-size:24px}.benefits p{font-size:18px}.resource-preview{grid-template-columns:1fr;gap:36px}.resource-links{border-left:0;padding-left:0}.resource-link{padding:22px 0}.inside-grid{grid-template-columns:1fr;gap:46px}.inside-grid p:not(.eyebrow){max-width:700px}.author-grid{gap:35px}.author-grid .lede{font-size:24px}.resource-entry{grid-template-columns:85px 1fr}.resource-entry .button{grid-column:2;justify-self:start;margin-top:-6px}.resource-entry h2{font-size:27px}.principle-grid{grid-template-columns:1fr;gap:45px}.principle-hero h1{font-size:48px}.principle-art{max-width:540px}.about-hero-grid{grid-template-columns:1fr;gap:35px}.about-hero-portrait{justify-content:flex-start}.portrait-frame{width:220px}.home-book-grid{gap:35px}.home-book-grid h2{font-size:38px}.compact{min-height:370px;padding-right:22px}.compact .book-object{max-width:240px}}@media (width<=600px){body{font-size:18px}.container{width:calc(100% - 40px)}.header-inner{gap:18px;padding-top:20px}.site-header nav{flex-wrap:wrap;justify-content:flex-start;gap:12px}.site-header nav>a:not(.button){align-items:center;min-height:40px;padding:8px 0;display:flex}.site-header .nav-button{display:none}.site-header nav{column-gap:25px}.brand{letter-spacing:.18em;font-size:11px}.hero-grid{flex-direction:column;align-items:stretch;gap:30px;padding-top:34px;padding-bottom:48px;display:flex}.hero-copy h1{margin-bottom:23px;font-size:clamp(40px,10.5vw,59px);line-height:1.1}.hero-copy .eyebrow{letter-spacing:.1em;max-width:none;margin-bottom:20px;font-size:9px}.hero-subtitle{max-width:450px;margin-bottom:23px;font-size:24px}.hero-promise{margin-top:28px;font-size:21px}.hero-copy .button{min-height:50px;padding:12px 17px;font-size:14px}.availability{font-size:12px}.book-scene{align-self:center;width:100%;max-width:400px;min-height:390px;padding:5px 30px 12px}.book-object{width:260px}.cover-orbit{border-width:12px;width:370px;height:370px;top:0;left:45%}.section{padding:53px 0}h2{font-size:36px}.lede{font-size:22px}.eyebrow{letter-spacing:.14em;font-size:10px}.accent-rule:before{width:45px;height:3px;margin-bottom:20px}.benefits{grid-template-columns:1fr;gap:28px;margin-top:34px}.benefits>div+div{border-left:0;border-top:1px solid var(--line);padding:27px 0 0}.short-rule{width:24px;margin-bottom:16px}.benefits h3{margin-bottom:10px;font-size:27px}.benefits p{font-size:19px}.resource-preview{gap:35px}.resource-preview .lede{font-size:22px}.resource-link{gap:17px;font-size:21px}.resource-link small{font-size:10px}.resource-link svg{width:24px}.inside-grid{gap:40px}.inside-grid .button{font-size:14px}.contents summary{font-size:15px}.contents li{font-size:17px}.author-grid{grid-template-columns:1fr;gap:25px}.author-grid .lede{font-size:24px}.author-grid h2{margin-bottom:12px}.credentials{font-size:12px}.page-hero{padding:40px 0 55px}.page-hero h1{font-size:48px}.page-hero .lede{font-size:22px}.breadcrumb{max-width:300px;font-size:12px}.page-hero .button{padding:15px 18px;font-size:14px}.page-hero .button-meta{font-size:11px}.library-intro{margin-bottom:35px;display:block}.library-intro>p:first-child{font-size:21px}.library-intro .meta{text-align:left;min-width:0}.resource-entry{padding:30px 0;display:block}.appendix-tag{margin-bottom:12px;padding:0;font-size:10px}.resource-entry h2{font-size:29px}.resource-entry p{font-size:18px}.resource-entry .button{margin-top:20px}.resource-entry .meta{margin-top:14px}.resource-notes{margin-top:25px;padding-top:32px}.resource-notes h2{font-size:30px}.reading-width p{font-size:19px}.reading-width p.lede{font-size:23px}.reading-width h2{font-size:34px}.update-entry .actions{flex-direction:column;align-items:flex-start;gap:20px}.principle-hero{padding:40px 0 60px}.principle-grid{grid-template-columns:1fr;gap:40px}.principle-hero h1{font-size:clamp(40px,10vw,56px)}.principle-art{width:100%;max-width:440px;margin:15px auto 0}.cycle-caption{font-size:11px}.portrait-frame{width:180px}.home-book-grid{flex-direction:column-reverse;align-items:stretch;gap:38px;display:flex}.home-book-grid h2{font-size:40px}.home-book-section{padding:55px 0 35px}.compact{min-height:370px;padding-bottom:30px}.compact .book-object{width:230px}.footer-cta{padding:42px 0}.footer-cta h2{font-size:27px;line-height:1.3}.footer-bottom{flex-direction:column;align-items:flex-start;gap:23px;padding:28px 0}.footer-bottom>div{text-align:left}.footer-fine{flex-direction:column;gap:12px}.footer-fine>div{gap:22px}.footer-fine a{padding:5px 0;display:inline-block}.mobile-break{display:block}.desktop-break{display:none}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}}@media print{.site-header,.site-footer,.actions,.skip-link{display:none!important}.navy{color:#000;background:#fff}.container{width:100%}.section,.page-hero{padding:20px 0}.book-scene{display:none}.hero-grid{min-height:0;display:block}.hero-subtitle,.hero-promise,.lede,.navy .lede,.eyebrow{color:#333}.resource-entry{break-inside:avoid}a{color:#000}.button-download{display:none}}.concept-heading{max-width:790px}.lenses-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 64px;margin-top:44px;display:grid}.lenses-grid article{border-top:1px solid #bbc4ce;padding-top:25px}.lenses-grid h3{margin-bottom:16px;font-size:32px}.lenses-grid .lens-question{color:var(--navy);margin-bottom:14px;font-size:23px}.lenses-grid p{color:var(--ink-soft);max-width:570px}.framework-note{max-width:850px;color:var(--ink-soft);margin-top:38px;font-size:17px}.stakes-grid,.test-grid,.forthcoming-grid{grid-template-columns:1fr 1fr;align-items:start;gap:80px;display:grid}.stakes-list{margin:4px 0 0}.stakes-list>div{border-top:1px solid var(--line);padding:25px 0}.stakes-list>div:last-child{border-bottom:1px solid var(--line)}.stakes-list dt{margin-bottom:13px;font-size:28px;line-height:1.2}.stakes-list dd{color:var(--ink-soft);margin:0;font-size:20px}.test-section .test-caveat{color:var(--muted);margin-top:26px;font-size:17px;line-height:1.6}.question-list details{border-top:1px solid #71809488}.question-list details:last-child{border-bottom:1px solid #71809488}.question-list summary{cursor:pointer;grid-template-columns:20px minmax(0,1fr) 18px;align-items:start;gap:15px;padding:22px 0;font-size:23px;line-height:1.35;list-style:none;display:grid}.question-list summary::-webkit-details-marker{display:none}.question-number{font:500 14px/1.5 var(--sans);color:var(--gold);padding-top:5px}.question-toggle{font:24px/1.3 var(--sans);color:var(--gold);text-align:center}.question-list details[open] .question-toggle{transform:rotate(45deg)}.question-list details p{color:var(--muted);margin:0;padding:0 30px 23px 35px;font-size:18px}.release-window{font:600 14px/1.5 var(--sans);color:var(--deep-gold);border-bottom:2px solid var(--gold);margin-bottom:25px;padding-bottom:9px;display:inline-block}@media (width<=1000px){.stakes-grid,.test-grid,.forthcoming-grid{gap:42px}.lenses-grid{gap:32px 40px}.question-list summary{font-size:21px}}@media (width<=820px){.stakes-grid,.test-grid,.forthcoming-grid{grid-template-columns:1fr;gap:32px}.stakes-grid>div,.test-grid>div:first-child{max-width:700px}.forthcoming-grid h2{margin-bottom:0}.question-list summary{font-size:23px}}@media (width<=600px){.lenses-grid{grid-template-columns:1fr;gap:26px;margin-top:32px}.lenses-grid h3{font-size:30px}.lenses-grid .lens-question{font-size:22px}.framework-note{font-size:16px}.stakes-list dt{font-size:26px}.stakes-list dd{font-size:19px}.question-list summary{gap:10px;padding:21px 0;font-size:21px}.question-list details p{padding:0 20px 22px 30px;font-size:18px}.release-window{font-size:13px}}.site-header nav{gap:24px}.site-header nav>a.nav-button[aria-current=page]{color:var(--navy);box-shadow:0 0 0 2px var(--navy), 0 0 0 3px var(--gold);text-decoration:none}.supporting-hero-grid{grid-template-columns:1.35fr 1fr;align-items:center;gap:clamp(40px,6vw,90px);display:grid}.supporting-hero-grid>div{min-width:0}.supporting-hero-grid h1{font-size:clamp(44px,4.9vw,70px)}.supporting-hero-grid .lede{max-width:620px}.worksheet-preview{justify-self:center;width:min(100%,320px);margin:0}.worksheet-preview>a{transition:transform .15s;display:block;transform:rotate(2deg);box-shadow:0 20px 42px #080e1855}.worksheet-preview>a:hover{transform:rotate(0)}.worksheet-preview img{width:100%;height:auto}.worksheet-preview figcaption{font:15px/1.7 var(--sans);color:var(--muted);margin-top:22px}.worksheet-preview figcaption a{color:var(--ivory)}.publication-panel{background:var(--slate);border-top:3px solid var(--gold);padding:34px}.publication-panel .status-label{font:14px/1.5 var(--sans);color:var(--muted);margin-bottom:20px}.publication-panel h2{margin-bottom:18px;font-size:42px}.publication-panel>p:not(.status-label){font-size:20px;line-height:1.5}.publication-resource{border-top:1px solid #71809480;margin-top:28px;padding-top:24px}.publication-resource span{font:13px/1.6 var(--sans);color:var(--muted);margin-bottom:8px;display:block}.publication-resource>a{font-size:23px;line-height:1.3}.publication-resource p{color:var(--muted);margin-top:10px;font-size:17px}.publication-notes{font:14px/1.6 var(--sans);margin-top:20px;display:inline-block}@media (width<=1180px){.header-inner{flex-direction:column;align-items:flex-start;gap:16px;padding:24px 0}.site-header nav{justify-content:space-between;width:100%}}@media (width<=820px){.supporting-hero-grid{grid-template-columns:1fr;gap:40px}.worksheet-preview{width:min(80%,300px)}.publication-panel{width:100%;max-width:600px}}@media (width<=600px){.site-header nav{grid-template-columns:1fr 1fr;align-items:center;gap:4px 20px;display:grid}.site-header nav>a:not(.button){min-height:44px;padding:10px 0}.site-header .nav-button{grid-column:1/-1;justify-self:start;min-height:44px;margin-top:8px;padding:10px 18px;font-size:13px;display:inline-flex}.supporting-hero-grid h1{font-size:clamp(40px,10.5vw,48px)}.publication-panel{padding:26px}.publication-panel h2{font-size:36px}}.site-header nav{position:relative}.book-navigation{font:inherit;position:relative}.book-navigation summary{cursor:pointer;align-items:center;gap:10px;min-height:44px;padding:12px 0;list-style:none;display:flex}.book-navigation summary::-webkit-details-marker{display:none}.book-navigation summary span{font-size:17px}.book-navigation[open] summary span{transform:rotate(180deg)}.book-navigation summary:hover,.book-navigation .section-active{color:var(--gold)}.book-navigation .section-active{text-underline-offset:8px;text-decoration:underline}.book-submenu{z-index:20;background:var(--ivory);width:270px;color:var(--navy);border-top:3px solid var(--gold);border-radius:3px;padding:10px;position:absolute;top:calc(100% + 6px);left:0;box-shadow:0 12px 30px #080e1840}.book-submenu a{min-height:44px;padding:12px 14px;text-decoration:none;display:block}.book-submenu a:hover,.book-submenu a[aria-current=page]{background:var(--mist);text-decoration:underline}.book-submenu a:focus-visible{outline-color:var(--deep-gold);outline-offset:-2px}.book-submenu .book-purchase{border-top:1px solid var(--line);margin-top:6px;font-weight:700}@media (width<=820px){.site-header nav{flex-wrap:wrap;gap:4px 20px}}@media (width<=600px){.site-header nav{grid-template-columns:1fr;gap:0}.site-header nav>a,.book-navigation summary{font-size:14px}.book-navigation{position:static}.book-submenu{width:100%;box-shadow:none;margin:4px 0 12px;position:static}.site-header .nav-button{grid-column:auto}}