:root{--ground:#f5f7f6;--paper:#fff;--ink:#1f2a2e;--muted:#566568;--teal:#0f7c7a;--teal-soft:#e9f3f1;--rule:#ccd8d4;--amber:#e3a51b;--heading:"Avenir Next Condensed","Arial Narrow","Roboto Condensed",system-ui,sans-serif;--body:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:1.5rem}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--body);font-size:1rem;line-height:1.65}
img{display:block;max-width:100%;height:auto}
svg{max-width:100%}
a{color:var(--teal);text-decoration-thickness:.08em;text-underline-offset:.2em}
a:hover{text-decoration-thickness:.14em}
a:focus-visible,summary:focus-visible{outline:3px solid var(--teal);outline-offset:4px}
h1,h2,h3,h4{font-family:var(--heading);line-height:1.15;font-weight:700}
h1,h2,h3,p,ul,ol,dl,figure{margin-top:0}
h1{font-size:clamp(2.5rem,4.6vw,4.25rem);letter-spacing:-.035em;margin-bottom:1.25rem;max-width:27ch}
h2{font-size:clamp(1.65rem,2.7vw,2.15rem);letter-spacing:-.02em;margin-bottom:1.1rem}
h3{font-size:1.35rem;margin-bottom:.65rem}
p{margin-bottom:1.3rem}
li{margin-bottom:.35rem}
.wrap{width:min(100% - 2.5rem,76rem);margin-inline:auto}
.skip-link{position:absolute;left:1rem;top:-5rem;z-index:20;background:var(--paper);padding:.5rem 1rem}
.skip-link:focus{top:1rem}
.masthead{background:var(--paper);border-top:5px solid var(--teal)}
.brand-bar{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:1.4rem 1.2rem}
.brand{display:flex;align-items:center;gap:.9rem;color:var(--ink);text-decoration:none;min-width:0}
.brand-mark{width:40px;height:40px;color:var(--teal);flex:0 1 40px}
.brand-name{display:block;font-family:var(--heading);font-size:1.75rem;font-weight:750;letter-spacing:-.015em;line-height:1.1}
.brand-tagline{display:block;font-size:.79rem;color:var(--muted);margin-top:.38rem;line-height:1.4}
.header-note{font-size:.72rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--teal);text-align:right;max-width:19ch}
.global-nav{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.nav-groups{display:flex;flex-wrap:wrap;gap:.15rem 1.8rem;align-items:start;padding-block:.4rem}
.nav-group{position:relative;min-width:0}
.nav-group summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:.65rem;padding:.65rem 0;font-size:.88rem;font-weight:600;line-height:1.35}
summary::-webkit-details-marker{display:none}
.chevron{width:12px;height:12px;color:var(--teal)}
.nav-group[open] .chevron{transform:rotate(180deg)}
.nav-group[open]{width:20rem;max-width:100%}
.nav-group ul{list-style:none;margin:0 0 .5rem;width:100%;padding:.55rem;background:var(--paper);border:1px solid var(--rule)}
.nav-group li{margin:0}
.nav-group a{display:block;padding:.5rem .55rem;text-decoration:none;font-size:.9rem;line-height:1.4}
.nav-group a:hover{background:var(--teal-soft)}
.eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--teal);margin-bottom:1.2rem;display:flex;align-items:center;gap:.6rem}
.eyebrow:before{content:"";display:block;width:1.6rem;height:2px;background:var(--teal)}
.home-intro{display:grid;gap:2.4rem;padding-block:3.2rem 3rem;align-items:center}
.home-name{display:block;font-size:1.15rem;line-height:1.4;font-weight:600;letter-spacing:0;margin-bottom:.7rem;color:var(--teal)}
.home-intro h1{max-width:17ch;font-size:clamp(2.7rem,5.2vw,4.65rem);margin-bottom:1.5rem}
.home-copy p{font-size:1rem;max-width:65ch}
.hero-photo{align-self:stretch;margin:0;position:relative}
.hero-photo img{width:100%;height:100%;min-height:300px;object-fit:cover;aspect-ratio:4/5;border:1px solid var(--rule)}
.hero-photo:after{content:"";position:absolute;right:-.65rem;bottom:-.65rem;width:45%;height:25%;border-right:3px solid var(--teal);border-bottom:3px solid var(--teal);pointer-events:none}
.reading-paths{display:flex;flex-wrap:wrap;gap:.7rem 1.2rem;margin-top:1.6rem;align-items:center}
.primary-link{display:inline-flex;align-items:center;gap:.8rem;background:var(--teal);color:var(--paper);text-decoration:none;padding:.65rem 1rem;font-size:.9rem;font-weight:650}
.primary-link svg{width:18px;height:18px}
.secondary-link{font-size:.9rem;font-weight:600}
.topic-directory{padding-block:2.8rem 3.6rem;border-top:1px solid var(--rule)}
.directory-heading{display:flex;justify-content:space-between;align-items:end;gap:2rem;margin-bottom:1.8rem}
.directory-heading h2{margin:0}
.directory-heading p{margin:0;max-width:44ch;font-size:.92rem;color:var(--muted)}
.topic-grid{display:grid;gap:1rem}
.topic-group{background:var(--paper);border:1px solid var(--rule);border-top:3px solid var(--teal);padding:1.4rem 1.4rem 1.2rem;min-width:0}
.group-heading{display:flex;gap:.8rem;align-items:center;margin-bottom:1rem}
.group-heading svg{width:28px;height:28px;color:var(--teal)}
.group-heading h3{font-size:1.55rem;margin:0;letter-spacing:-.015em}
.topic-group ul{list-style:none;padding:0;margin:0}
.topic-group li{border-top:1px solid #e4ebe7;margin:0}
.topic-group a{display:flex;align-items:start;justify-content:space-between;gap:.8rem;padding:.65rem 0;color:var(--ink);text-decoration:none;line-height:1.4;font-size:.92rem}
.topic-group a:hover{color:var(--teal)}
.topic-group a svg{width:15px;height:15px;flex:0 1 15px;color:var(--teal);margin-top:.2rem}
.home-reading{border-top:1px solid var(--rule);padding-block:3rem 4rem}
.home-reading .article-body{margin-inline:auto}
.breadcrumbs{font-size:.79rem;color:var(--muted);padding-top:1.75rem;display:flex;align-items:center;flex-wrap:wrap;gap:.45rem .65rem;line-height:1.5}
.breadcrumbs a{text-decoration:none}
.breadcrumbs svg{height:11px;width:11px;color:var(--muted)}
.page-heading{padding-block:2rem 1.75rem}
.page-heading.with-image{display:grid;align-items:center;gap:2rem}
.page-heading h1{margin-bottom:0;max-width:27ch}
.page-photo{margin:0;border-left:3px solid var(--teal);padding-left:.7rem}
.page-photo img{width:100%;aspect-ratio:3/2;object-fit:cover;border:1px solid var(--rule)}
.at-glance{background:var(--paper);border:1px solid var(--rule);border-left:4px solid var(--teal);padding:1.15rem 1.3rem}
.at-glance h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.12em;color:var(--teal);margin-bottom:.9rem;font-family:var(--body);font-weight:750}
.glance-grid{display:grid;gap:1.1rem;margin:0}
.glance-grid dt{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;font-weight:700;color:var(--muted);margin-bottom:.25rem}
.glance-grid dd{margin:0;font-size:.88rem;line-height:1.5;overflow-wrap:anywhere}
.glance-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.2rem .7rem}
.glance-grid li{margin:0}
.manual-layout{padding-block:2.4rem 4rem;min-width:0}
.desktop-index{display:none}
.mobile-index{margin-bottom:1.8rem;border-block:1px solid var(--rule);padding:.65rem 0}
.mobile-index summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;font-weight:650;font-size:.9rem;cursor:pointer;color:var(--teal)}
.mobile-index[open] .chevron{transform:rotate(180deg)}
.mobile-index .section-links{padding-top:.75rem}
.section-links{list-style:none;padding:0;margin:0;display:grid;gap:.4rem}
.section-links li{margin:0}
.section-links a{display:grid;grid-template-columns:1.65rem minmax(0,1fr);gap:.5rem;text-decoration:none;font-size:.82rem;line-height:1.45;padding:.45rem .5rem .45rem 0;border-bottom:1px solid #dce5e0;color:var(--muted)}
.section-links a:hover{color:var(--teal);border-bottom-color:var(--teal)}
.section-number{font-family:var(--heading);font-weight:750;color:var(--teal);font-size:.86rem;line-height:1.5}
.article-body{width:100%;max-width:70ch;min-width:0}
.article-intro{font-size:1.06rem;margin-bottom:1.8rem}
.article-intro p:last-child{margin-bottom:0}
.article-section{border-top:1px solid var(--rule);padding-block:2rem .35rem;scroll-margin-top:1.4rem}
.section-title{display:flex;gap:.85rem;align-items:baseline}
.section-title .section-number{font-size:.92rem}
.section-title h2{flex:1;min-width:0}
.article-body ul,.article-body ol{padding-left:1.35rem;margin-bottom:1.4rem}
.article-body li{padding-left:.25rem}
.watch,.plain{margin-block:1.6rem;padding:1.2rem 1.3rem;background:var(--paper);border-left:3px solid var(--teal)}
.watch{border-left-color:var(--amber);background:#fffaf0}
.watch h3,.plain h3{font-family:var(--body);font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;line-height:1.4;margin-bottom:.6rem}
.watch h3{color:var(--ink)}
.plain h3{color:var(--teal)}
.watch p,.plain p{font-size:.94rem;margin-bottom:.8rem}
.watch p:last-child,.plain p:last-child{margin-bottom:0}
.diagram{margin:1.5rem 0 2rem;padding:1.4rem;background:var(--paper);border:1px solid var(--rule);text-align:center}
.diagram svg{display:block;width:min(100%,300px);height:auto;margin-inline:auto;color:var(--teal);font-family:var(--body)}
.diagram figcaption{font-size:.81rem;color:var(--muted);margin-top:1rem;text-align:left}
.pathway-comparison{display:grid;gap:.75rem;margin-block:1.3rem 1.6rem}
.pathway{background:var(--paper);border:1px solid var(--rule);border-top:3px solid var(--teal);padding:1rem 1.2rem}
.pathway h3{font-size:1.4rem;color:var(--teal)}
.pathway p{margin-bottom:0;font-size:.93rem}
.site-footer{border-top:4px solid var(--teal);background:var(--paper);padding-block:2.4rem 1.3rem}
.footer-heading{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-bottom:1.8rem;border-bottom:1px solid var(--rule);margin-bottom:1.8rem}
.footer-heading h2{margin:0;font-size:1.7rem}
.footer-heading p{margin:0;color:var(--muted);font-size:.84rem;max-width:42ch}
.footer-index{display:grid;gap:1.5rem 1rem;margin-bottom:2.5rem}
.footer-group h3{font-family:var(--body);font-size:.78rem;font-weight:750;line-height:1.4;margin-bottom:.75rem;color:var(--teal)}
.footer-group ul{list-style:none;margin:0;padding:0}
.footer-group li{margin-bottom:.4rem}
.footer-group a{font-size:.79rem;line-height:1.45;text-decoration:none;color:var(--muted);display:inline-block}
.footer-group a:hover{color:var(--teal);text-decoration:underline}
.scope-notice{font-size:.82rem;line-height:1.65;color:var(--muted);max-width:110ch;border-top:1px solid var(--rule);padding-top:1.6rem;margin-bottom:1.3rem}
.footer-end{border-top:1px solid #e4ebe7;padding-top:1rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.3rem 1rem;font-size:.73rem;color:var(--muted)}
.error-page{padding-block:4rem 5rem;max-width:70ch}
.error-page h1{font-size:clamp(2.6rem,6vw,4rem)}
.error-links{list-style:none;display:flex;flex-wrap:wrap;gap:.7rem 1.2rem;padding:0;margin-top:1.8rem}
@media(min-width:40rem){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.glance-grid{grid-template-columns:1fr 1fr}.glance-grid>div:last-child{grid-column:1/-1}.footer-index{grid-template-columns:repeat(3,minmax(0,1fr))}.pathway-comparison{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:62rem){.home-intro{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:4rem;padding-block:4.25rem 4rem}.home-copy p{font-size:1.03rem}.hero-photo img{min-height:550px}.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.directory-heading{gap:4rem}.page-heading.with-image{grid-template-columns:minmax(0,1.45fr) minmax(0,.8fr);gap:3.5rem;padding-block:2.25rem 2rem}.page-heading h1{font-size:3.45rem}.glance-grid{grid-template-columns:1fr 1.1fr 1.05fr;gap:2rem}.glance-grid>div:last-child{grid-column:auto}.manual-layout{display:grid;grid-template-columns:14.5rem minmax(0,1fr);gap:4.5rem;padding-block:3rem 4.75rem}.desktop-index{display:block;align-self:start;position:sticky;top:1.5rem;max-height:calc(100vh - 3rem);overflow-y:auto;padding-right:.45rem}.desktop-index h2{font-family:var(--body);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--teal);margin-bottom:1rem}.mobile-index{display:none}.article-intro{margin-bottom:2.2rem}.footer-index{grid-template-columns:repeat(6,minmax(0,1fr))}.footer-group:nth-child(2){grid-column:auto}.footer-heading p{text-align:right}}
@media(max-width:39.99rem){.wrap{width:calc(100% - 2rem)}.brand-bar{gap:1rem;padding-block:1.1rem}.brand{gap:.6rem}.brand-mark{width:30px;height:30px;flex-basis:30px}.brand-name{font-size:1.42rem}.brand-tagline{font-size:.7rem;max-width:33ch}.header-note{display:none}.nav-groups{gap:0 1.1rem;padding-block:.35rem}.nav-group summary{font-size:.78rem;gap:.5rem;padding-block:.55rem}.nav-group ul{position:static;max-width:calc(100vw - 2rem);width:100%;box-shadow:none;min-width:0;margin-bottom:.5rem}.nav-group[open]{width:100%}.home-intro{padding-top:2.4rem;gap:1.8rem}.home-intro h1{font-size:2.85rem}.home-copy p{font-size:.98rem}.home-name{font-size:1rem}.hero-photo img{min-height:0;aspect-ratio:4/3}.hero-photo:after{right:-.4rem;bottom:-.4rem}.directory-heading{display:block}.directory-heading p{margin-top:.75rem}.topic-directory{padding-block:2rem 2.6rem}.topic-group{padding:1.2rem}.topic-group a{font-size:.92rem}.breadcrumbs{padding-top:1.4rem;font-size:.74rem}.page-heading{padding-block:1.7rem 1.5rem}.page-heading h1{font-size:2.6rem;max-width:22ch;overflow-wrap:normal}.page-heading.with-image{gap:1.4rem}.page-photo img{aspect-ratio:3/2}.at-glance{padding:1rem 1.1rem}.glance-grid{gap:.8rem}.glance-grid dd{font-size:.84rem}.manual-layout{padding-top:1.65rem}.article-intro{font-size:1rem}.article-section{padding-top:1.7rem}.section-title{gap:.55rem}.section-title .section-number{font-size:.8rem}.section-title h2{font-size:1.65rem}.watch,.plain{padding:1rem 1.1rem}.diagram{padding:1rem}.footer-heading{display:block}.footer-heading p{margin-top:.6rem}.footer-index{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}.scope-notice{font-size:.77rem}.site-footer{padding-top:1.9rem}.error-page{padding-block:3rem 4rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media(max-width:39.99rem){.home-copy{display:contents}.home-intro{gap:1.3rem}.home-intro .eyebrow{grid-row:1;margin-bottom:0}.home-intro h1{grid-row:2;margin-bottom:0}.home-intro .hero-photo{grid-row:3}.home-intro .home-name{margin-bottom:.45rem}.home-intro .home-copy p{margin-bottom:0}.home-intro .reading-paths{margin-top:0}}
