@font-face{font-family:Nunito;src:url('/assets/NunitoSans-Regular.ttf?v=22b479a312fa9713') format('truetype');font-display:swap}@font-face{font-family:Nunito;src:url('/assets/NunitoSans-Bold.ttf?v=137aa207a33f19cf') format('truetype');font-weight:700;font-display:swap}
:root{--ink:#243e47;--muted:#526871;--paper:#fafaf5;--line:#dbe3de;--green:#e5eee4;--blue:#e6f0f5;--yellow:#f6edce;--accent:#345c51;--radius:20px;font-family:Nunito,system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.65;font-synthesis:none;scroll-behavior:smooth;scroll-padding-top:116px}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #3975a2;outline-offset:4px}button:disabled{cursor:default}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2{font-family:Georgia,'Times New Roman',serif;font-weight:400;letter-spacing:-.035em;line-height:1.12}h1{font-size:clamp(38px,4.9vw,70px);margin-bottom:25px}h2{font-size:clamp(30px,3.2vw,42px);margin-bottom:18px}h3{font-size:21px;line-height:1.35;margin-bottom:12px}p{margin-bottom:20px}button{border:0}::selection{background:#dbe9d6}.container{width:min(1180px,calc(100% - 64px));margin:auto}.skip{position:absolute;top:-100px;left:12px;z-index:50;background:var(--ink);color:white;padding:12px}.skip:focus{top:12px}.site-header{position:sticky;top:0;z-index:20;background:rgba(250,250,245,.97);border-bottom:1px solid #e9ede7}.nav-wrap{min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:flex;align-items:center;flex-shrink:0;height:84px;overflow:hidden}.brand img{display:block;width:360px;flex-shrink:0}.nav-links{display:flex;align-items:center;gap:25px}.nav-links a{text-decoration:none;font-size:14px;font-weight:700;padding:10px 0;border-bottom:2px solid transparent}.nav-links a[aria-current=page]{border-color:var(--accent);color:var(--accent)}.nav-links a:hover{color:var(--accent);border-color:#afc1b5}.nav-search{border-left:1px solid var(--line);padding-left:22px!important}.menu-toggle{display:none;color:var(--ink);background:var(--green);padding:9px 16px;border-radius:30px}.eyebrow{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.17em;color:var(--accent);margin-bottom:20px}.lead{font-size:19px;line-height:1.65;color:var(--muted);max-width:620px}.hero{padding:76px 0 65px;display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:80px}.hero h1 em{font-style:normal;color:#527764}.hero-search{display:flex;gap:8px;padding:8px 8px 8px 19px;border:1px solid #bccbc2;background:white;border-radius:12px;margin:28px 0 12px}.hero-search input{min-width:0;width:100%;border:0;background:transparent;outline-offset:2px;color:var(--ink)}.hero-search button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--ink);color:white;padding:12px 20px;border-radius:9px;font-weight:700;font-size:14px;text-decoration:none;white-space:nowrap}.button.secondary{background:transparent;color:var(--ink);border:1px solid #b8c9be}.hint{font-size:13px;color:var(--muted)}.hero-note{position:relative;background:var(--blue);padding:32px;border-radius:100px 20px 20px 20px}.hero-emblem{display:flex;align-items:center;justify-content:center;background:#f4f6ed;border-radius:80px 12px 12px 12px;min-height:180px;margin-bottom:30px;position:relative;overflow:hidden}.hero-emblem:before,.hero-emblem:after{content:'';position:absolute;width:180px;height:180px;border:1px solid #d6e1d5;border-radius:50%;left:calc(50% - 110px);top:13px}.hero-emblem:after{left:calc(50% - 70px);top:32px}.hero-emblem img{width:122px;position:relative;z-index:1}.focus-link{display:block;text-decoration:none;padding:16px 0;border-top:1px solid #c7d9dc}.focus-link strong{font-size:19px;font-family:Georgia,serif;font-weight:400;display:flex;justify-content:space-between;gap:15px}.focus-link span{font-size:13px;color:var(--muted)}.focus-link:hover strong{text-decoration:underline}.section{padding:62px 0;border-top:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px}.section-head p{max-width:580px;color:var(--muted);margin-bottom:0}.section-head h2{margin-bottom:12px}.text-link{font-size:14px;font-weight:700;white-space:nowrap}.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.category-card{background:var(--green);border-radius:var(--radius);padding:25px;display:flex;flex-direction:column;min-height:255px;text-decoration:none}.category-card:nth-child(2){background:var(--blue)}.category-card:nth-child(3){background:var(--yellow)}.category-card:nth-child(4){background:#efe9e1}.category-number{font-family:Georgia,serif;font-size:28px;color:#6a817a;margin-bottom:28px}.category-card h3{font-size:19px}.category-card p{font-size:14px;color:var(--muted);margin-bottom:22px}.category-card .card-end{margin-top:auto;font-size:12px;font-weight:700;display:flex;justify-content:space-between}.category-card:hover{box-shadow:inset 0 0 0 2px #90aba0}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.article-card{padding:27px;background:white;border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;min-height:252px}.article-card h3{font-family:Georgia,serif;font-size:25px;letter-spacing:-.025em;font-weight:400}.article-card h3 a{text-decoration:none}.article-card h3 a:hover{text-decoration:underline}.article-card p{font-size:15px;color:var(--muted)}.article-card .eyebrow{margin-bottom:17px;font-size:10px}.article-meta{font-size:12px;color:var(--muted);margin-top:auto;display:flex;justify-content:space-between;gap:15px}.paths{display:grid;grid-template-columns:1fr 1fr;gap:24px}.path{background:var(--green);border-radius:var(--radius);padding:32px}.path:nth-child(2){background:var(--blue)}.path ol{padding-left:24px;margin:22px 0 0}.path li{padding:7px 0;border-top:1px solid #cbd8ce}.path p{color:var(--muted)}.sources-panel{display:grid;grid-template-columns:1fr 1.05fr;gap:70px;align-items:start;background:#edf0e7;border-radius:var(--radius);padding:42px}.sources-panel p{color:var(--muted)}.source-list{list-style:none;padding:0;margin:0}.source-list li{border-bottom:1px solid #d2dccf;padding:15px 0}.source-list li:first-child{padding-top:0}.source-list strong{display:block;font-family:Georgia,serif;font-size:19px;font-weight:400}.source-list span{font-size:13px;color:var(--muted)}.site-footer{margin-top:35px;border-top:1px solid var(--line);padding:37px 0 25px}.footer-top{display:flex;justify-content:space-between;align-items:start;gap:30px}.footer-top p{font-size:14px;color:var(--muted);max-width:570px}.footer-links{display:flex;gap:22px;flex-wrap:wrap;font-size:13px}.footer-bottom{display:flex;justify-content:space-between;gap:15px;margin-top:25px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.install-button{background:transparent;color:var(--accent);padding:0;text-decoration:underline;text-underline-offset:4px}.breadcrumbs{display:flex;flex-wrap:wrap;gap:9px;font-size:12px;color:var(--muted);padding:28px 0}.page-hero{padding:18px 0 45px;max-width:860px}.page-hero h1{font-size:clamp(38px,4.4vw,58px)}.page-hero .lead{max-width:760px}.library-filter{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:30px}.filter-link{display:inline-block;border:1px solid #b6c8bf;text-decoration:none;border-radius:30px;padding:8px 18px;font-size:13px}.filter-link[aria-current=page]{background:var(--ink);color:white;border-color:var(--ink)}.article-heading{max-width:870px;margin:15px 0 38px}.article-heading h1{font-size:clamp(36px,4.3vw,58px)}.article-heading .lead{max-width:780px}.article-byline{color:var(--muted);font-size:12px;display:flex;flex-wrap:wrap;gap:18px}.article-layout{display:grid;grid-template-columns:245px minmax(0,710px);gap:68px;align-items:start;padding-bottom:40px}.article-toc{position:sticky;top:116px;font-size:13px;border-top:1px solid var(--line);padding-top:20px}.article-toc p{font-weight:700}.article-toc ol{list-style:none;padding:0;margin:0}.article-toc li{margin-bottom:12px}.article-toc a{text-decoration:none;display:block;padding:3px 0;color:var(--muted)}.article-toc a:hover,.article-toc a[aria-current=true]{color:var(--accent);text-decoration:underline}.reading section{margin-bottom:38px}.reading h2{font-family:Nunito,system-ui,sans-serif;font-size:26px;font-weight:700;letter-spacing:-.02em;line-height:1.35;margin-bottom:18px}.reading p{font-size:18px;line-height:1.85;margin-bottom:20px}.section-citations{font-size:12px!important;color:var(--muted);margin:0}.section-citations a{margin-right:9px}.educational-note{padding:20px 23px;background:var(--yellow);border-radius:12px;margin-bottom:35px;font-size:14px}.references{border-top:1px solid var(--line);padding-top:28px}.references ol{padding-left:23px}.references li{padding-left:7px;font-size:14px;margin-bottom:22px;scroll-margin-top:116px}.references strong{display:block}.references span{display:block;color:var(--muted);margin-top:3px}.references .reference-purpose{font-size:12px}.related{margin-top:32px}.reading-summary{padding:25px;border-left:3px solid #91b29d;background:var(--green);border-radius:0 12px 12px 0;margin:0 0 35px}.reading-summary p{font-size:16px;margin:0}.search-page{max-width:840px;padding-bottom:60px}.search-form{display:flex;gap:10px;margin:10px 0 18px}.search-form input{width:100%;min-width:0;background:white;border:1px solid #a9bdb2;border-radius:9px;padding:14px 18px}.search-form button{flex-shrink:0}.search-filter{display:flex;gap:12px;align-items:center;font-size:14px;margin-bottom:24px}.search-filter select{padding:8px;border:1px solid #b7c9bf;border-radius:7px;background:white;color:var(--ink)}.search-status{font-size:14px;color:var(--muted)}.search-results{list-style:none;padding:0}.search-results li{padding:24px 0;border-top:1px solid var(--line)}.search-results h2{font-size:28px;margin-bottom:12px}.search-results h2 a{text-decoration:none}.search-results h2 a:hover{text-decoration:underline}.search-results p{color:var(--muted);margin-bottom:0}.search-results mark{background:var(--yellow);color:var(--ink)}.prose{max-width:760px;padding:0 0 45px}.prose h2{font-family:Nunito,system-ui,sans-serif;font-size:25px;font-weight:700;letter-spacing:-.02em;margin-top:40px}.prose p{font-size:17px}.book-register{display:grid;gap:12px}.book-register details{background:white;border:1px solid var(--line);border-radius:12px;padding:20px}.book-register summary{cursor:pointer;font-weight:700;line-height:1.4}.book-register p{font-size:14px;color:var(--muted);margin-top:15px;margin-bottom:0}.offline-status{margin:0;background:var(--yellow);padding:12px;text-align:center;font-size:14px}.review-banner{margin:0;background:var(--yellow);padding:10px;text-align:center;font-size:12px}dialog{width:min(520px,calc(100% - 32px));border:1px solid var(--line);border-radius:18px;padding:30px;color:var(--ink);background:var(--paper)}dialog::backdrop{background:rgba(20,43,45,.4)}dialog h2{font-size:30px}dialog .button{margin-top:8px}.dialog-close{float:right;background:transparent;padding:4px 10px;color:var(--ink);font-size:20px}.empty-state{padding:24px;border:1px solid var(--line);border-radius:12px;background:white}.no-script{font-size:14px;border:1px solid var(--line);padding:16px;background:var(--green)}[hidden]{display:none!important}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1400px){.hero{padding-top:90px;padding-bottom:80px}}@media(max-width:1100px){:root{scroll-padding-top:104px}.nav-wrap{min-height:84px}.brand{height:68px}.article-toc{top:104px}.brand img{width:280px}.nav-links{gap:15px}.nav-links a{font-size:12px}.hero{gap:35px}.hero-note{padding:25px}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-card{min-height:215px}.category-number{margin-bottom:20px}.article-layout{grid-template-columns:205px minmax(0,1fr);gap:35px}.sources-panel{gap:35px}.article-card{padding:23px}}
@media(max-width:760px){:root{scroll-padding-top:100px}.container{width:calc(100% - 36px)}.nav-wrap{min-height:80px;flex-wrap:wrap;gap:0}.brand{height:64px;width:260px;max-width:calc(100% - 82px)}.brand img{width:260px}.menu-toggle{display:block}.nav-links{display:none;width:100%;padding:10px 0 18px;flex-wrap:wrap;gap:2px}.nav-links.is-open{display:flex}.nav-links a{font-size:14px;padding:10px 13px;flex:1 0 30%;border-radius:6px}.nav-search{padding-left:13px!important;border-left:0}.hero{grid-template-columns:1fr;padding:42px 0;gap:32px}.hero h1{font-size:48px}.lead{font-size:17px}.hero-note{border-radius:60px 16px 16px 16px;padding:24px}.hero-emblem{min-height:132px;margin-bottom:19px;border-radius:46px 10px 10px 10px}.hero-emblem img{width:90px}.hero-emblem:before,.hero-emblem:after{width:135px;height:135px;top:8px}.hero-emblem:before{left:calc(50% - 83px)}.hero-emblem:after{left:calc(50% - 50px)}.section{padding:38px 0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:16px}.category-grid{gap:12px}.category-card{padding:20px;min-height:235px}.category-card h3{font-size:17px}.category-card p{font-size:13px}.article-grid{grid-template-columns:1fr}.article-card{min-height:0}.article-meta{margin-top:8px}.paths{grid-template-columns:1fr;gap:18px}.path{padding:25px}.sources-panel{grid-template-columns:1fr;padding:27px;gap:25px}.footer-top,.footer-bottom{flex-direction:column;gap:12px}.footer-links{gap:16px}.article-layout{grid-template-columns:1fr;gap:24px}.article-toc{position:static;border:1px solid var(--line);border-radius:12px;padding:18px;background:#eef2e9}.article-toc p{margin-bottom:10px}.article-toc li{margin:3px 0}.article-heading h1{font-size:38px}.reading p{font-size:17px;line-height:1.8}.reading h2{font-size:23px}.breadcrumbs{padding:22px 0}.page-hero{padding:10px 0 28px}.search-form{gap:8px}.search-form input{padding:12px}.search-form button{padding:12px 15px}.prose p{font-size:16px}}
@media(max-width:360px){.category-grid{grid-template-columns:1fr}.hero h1{font-size:40px}.hero-search{padding-left:12px}.hero-search button{padding:12px}.brand img{width:200px}}
@media(min-width:761px) and (max-width:900px){.nav-wrap{flex-wrap:wrap;gap:0}.menu-toggle{display:block}.nav-links{display:none;width:100%;padding:10px 0 18px;flex-wrap:wrap;gap:2px}.nav-links.is-open{display:flex}.nav-links a{font-size:14px;padding:10px 13px;flex:1 0 30%;border-radius:6px}.nav-search{padding-left:13px!important;border-left:0}}
@media(max-width:900px){html:not(.js-enabled) .menu-toggle{display:none}html:not(.js-enabled) .nav-links{display:flex}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
@media print{.site-header,.site-footer,.article-toc,.related,.offline-status,.review-banner{display:none!important}.container{width:100%}.article-layout{display:block}.reading{max-width:none}.reading p{font-size:12pt}h1{font-size:26pt!important}.references li{break-inside:avoid}body{background:white;color:black}a{color:black}.educational-note{background:transparent;border:1px solid #bbb}}

/* Compact, expandable references requested for the reading edition. */
.references.compact-sources{font-size:12px}.references.compact-sources summary{font-size:12px;cursor:pointer}.references.compact-sources li,.references.compact-sources li strong,.references.compact-sources li span{font-size:12px;line-height:1.65}.references.compact-sources li{margin-bottom:12px}

.eyebrow.brand-case{text-transform:none}
