:root{--paper:#f5f2eb;--paper2:#ebe7dc;--ink:#173c43;--body:#354b4d;--muted:#687878;--line:#d8d4c9;--teal:#174d53;--teal2:#28656a;--amber:#c48632;--amber-light:#f1e4cb;--white:#fffdf8;--serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;--sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--measure:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--body);font-family:var(--sans);font-size:16px;line-height:1.72}a{color:var(--teal);text-underline-offset:3px}a:hover{color:#a4661c}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--amber);outline-offset:3px}img{max-width:100%}.skip{position:absolute;left:-999px;top:8px;background:var(--white);padding:10px}.skip:focus{left:10px;z-index:20}.shell{width:min(var(--measure),calc(100% - 48px));margin-inline:auto}
.site-header{border-bottom:1px solid var(--line);background:rgba(245,242,235,.96)}.header-inner{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-weight:700;font-size:16px;letter-spacing:-.03em}.brand-mark{width:36px;height:36px;display:grid;place-items:center;background:var(--teal);border-radius:3px;color:#f7efe0}.brand-mark svg{width:21px}.nav{display:flex;align-items:center;gap:25px}.nav a{font-size:13px;font-weight:600;text-decoration:none;color:var(--body)}.nav a:hover,.nav a[aria-current=page]{color:var(--teal);text-decoration:underline;text-decoration-color:var(--amber);text-decoration-thickness:2px;text-underline-offset:7px}.menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--ink);font:600 13px var(--sans);padding:9px 12px;border-radius:3px}
.hero{padding:78px 0 68px;background:var(--teal);color:#f7f3e9;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;right:-90px;top:-150px;width:520px;height:520px;border:1px solid rgba(241,228,203,.22);border-radius:50%;box-shadow:0 0 0 38px rgba(241,228,203,.035),0 0 0 92px rgba(241,228,203,.025);pointer-events:none}.hero-inner{position:relative;z-index:1}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:.18em;font-weight:700;color:var(--amber)}.hero h1{font:500 clamp(42px,7vw,78px)/.98 var(--serif);letter-spacing:-.045em;max-width:820px;margin:19px 0 22px}.hero p{max-width:620px;color:#d9e2dd;font-size:17px;margin:0}.hero .action-link{display:inline-flex;margin-top:30px;padding:12px 17px;background:var(--amber);color:#183c41;font-weight:700;text-decoration:none;border-radius:2px}.hero .action-link:hover{background:#e0ad61}
.page-intro{padding:58px 0 33px}.crumbs{font-size:12px;color:var(--muted);margin-bottom:24px}.crumbs a{color:var(--teal)}.page-intro h1{font:500 clamp(38px,5vw,58px)/1.06 var(--serif);letter-spacing:-.035em;color:var(--ink);max-width:820px;margin:0 0 16px}.page-intro p{max-width:690px;margin:0;color:var(--muted);font-size:17px}.content{padding:8px 0 76px}.section-heading{font:500 34px/1.1 var(--serif);color:var(--ink);letter-spacing:-.025em;margin:0 0 18px}.section-lead{max-width:660px;color:var(--muted);margin:0 0 32px}.feature-row{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;margin:20px 0 68px}.feature-card{background:var(--paper2);padding:32px 35px;min-height:280px;display:flex;flex-direction:column;justify-content:space-between}.feature-card.dark{background:var(--teal);color:#f7f3e9}.feature-card h2{font:500 35px/1.08 var(--serif);margin:11px 0;color:inherit}.feature-card p{max-width:570px;margin:0 0 18px}.feature-card a{font-weight:700}.feature-card.dark a{color:#f2c67c}.feature-card.dark p{color:#d9e2dd}.kicker{font-size:11px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--amber)}.link-arrow{text-decoration:none}.link-arrow:after{content:" ↗";font-size:1.1em}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.guide-card{display:block;min-height:200px;padding:22px 23px;background:var(--white);border:1px solid var(--line);text-decoration:none;color:var(--body);transition:transform .18s ease,border-color .18s ease}.guide-card:hover{transform:translateY(-3px);border-color:var(--teal2);color:var(--body)}.guide-card .num{font:500 15px var(--serif);color:var(--amber)}.guide-card h3{font:500 22px/1.15 var(--serif);color:var(--ink);margin:12px 0 8px}.guide-card p{font-size:13px;line-height:1.55;color:var(--muted);margin:0}.card-link{font-size:13px;color:var(--teal);font-weight:700;margin-top:18px;display:inline-block}
.callout{margin:30px 0;padding:22px 25px;border-left:3px solid var(--amber);background:#eee8dc}.callout strong{color:var(--ink)}.callout p{margin:0}.two-col{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:58px;align-items:start}.article-body{max-width:720px}.article-body h2{font:500 30px/1.15 var(--serif);color:var(--ink);letter-spacing:-.02em;margin:42px 0 12px;scroll-margin-top:22px}.article-body h3{font:600 18px/1.3 var(--sans);color:var(--teal);margin:27px 0 8px}.article-body p{margin:0 0 18px}.article-body ul,.article-body ol{padding-left:23px}.article-body li{padding-left:5px;margin:7px 0}.toc{position:sticky;top:24px;background:var(--paper2);border-top:3px solid var(--amber);padding:20px}.toc h2{font:700 12px var(--sans);text-transform:uppercase;letter-spacing:.12em;color:var(--ink);margin:0 0 12px}.toc ol{margin:0;padding-left:18px}.toc li{margin:7px 0;font-size:13px;line-height:1.45}.toc a{text-decoration:none}.article-note{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;margin-top:42px}.definition{font:500 23px/1.45 var(--serif);color:var(--teal);border-left:3px solid var(--amber);padding:8px 0 8px 20px;margin:28px 0}
.glossary-tools{margin:25px 0 26px;max-width:520px}.glossary-tools label{display:block;font-size:12px;font-weight:700;color:var(--ink);margin-bottom:7px}.glossary-tools input{width:100%;padding:14px 15px;background:var(--white);border:1px solid #c8c5b9;border-radius:2px;font:16px var(--sans);color:var(--ink)}.glossary-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.term-card{background:var(--white);border:1px solid var(--line);padding:18px 20px}.term-card a{font:500 22px var(--serif);text-decoration:none;color:var(--ink)}.term-card p{font-size:13px;color:var(--muted);margin:5px 0 0}.no-results{padding:22px;border:1px dashed var(--line);color:var(--muted);grid-column:1/-1}
.faq-list{max-width:820px}.faq-list details{background:var(--white);border:1px solid var(--line);margin:0 0 10px}.faq-list summary{cursor:pointer;list-style:none;padding:19px 22px;font-weight:700;color:var(--ink);position:relative;padding-right:52px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:22px;color:var(--amber);font-size:22px;top:12px}.faq-list details[open] summary:after{content:"−"}.faq-answer{padding:0 22px 20px;max-width:720px}.faq-answer p{margin:0 0 10px}.info-band{padding:30px;background:var(--teal);color:#f4f0e7;margin:50px 0}.info-band h2{font:500 29px var(--serif);margin:0 0 10px}.info-band p{margin:0;color:#d9e2dd}.info-band a{color:#f2c67c}
.site-footer{background:#e7e3d9;border-top:1px solid var(--line);padding:44px 0 25px}.footer-top{display:grid;grid-template-columns:1.3fr .7fr 1fr;gap:38px;padding-bottom:31px}.footer-brand{font-weight:700;color:var(--ink);font-size:17px}.footer-top p{font-size:13px;line-height:1.6;margin:10px 0;color:#536666}.footer-col h2{font-size:11px;text-transform:uppercase;letter-spacing:.13em;color:var(--ink);margin:0 0 11px}.footer-col a{display:block;font-size:13px;color:var(--body);text-decoration:none;margin:6px 0}.footer-col a:hover{text-decoration:underline}.footer-meta{border-top:1px solid #c9c5bb;padding-top:18px;font-size:12px;color:#526262}.disclaimer{font-size:12px;line-height:1.6;margin:14px 0 10px;color:#455a5b}.copyright{margin:0;font-size:11px;color:var(--muted)}
.tag{display:inline-block;background:var(--amber-light);color:#76501e;padding:4px 9px;font-size:10px;text-transform:uppercase;letter-spacing:.1em;font-weight:700}.article-title{padding:46px 0 32px}.article-title .crumbs{margin-bottom:26px}.article-title h1{font:500 clamp(39px,5vw,60px)/1.02 var(--serif);letter-spacing:-.04em;color:var(--ink);margin:15px 0 16px;max-width:820px}.article-title p{max-width:700px;color:var(--muted);font-size:17px;margin:0}.article-meta{font-size:12px;color:var(--muted);margin-top:21px}
.simple-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.simple-links a{padding:9px 13px;background:var(--paper2);text-decoration:none;font-size:13px;font-weight:600}
@media(max-width:800px){.shell{width:min(100% - 36px,var(--measure))}.header-inner{min-height:72px}.menu-toggle{display:block}.nav{display:none;position:absolute;top:72px;left:0;right:0;z-index:10;background:var(--paper);padding:18px 22px 22px;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;gap:12px}.nav.is-open{display:flex}.nav a{font-size:15px}.hero{padding:62px 0 56px}.hero:after{right:-280px}.feature-row{grid-template-columns:1fr}.card-grid{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr;gap:28px}.toc{position:static;grid-row:1}.footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}}
@media(max-width:540px){body{font-size:15px}.shell{width:calc(100% - 32px)}.page-intro{padding:42px 0 26px}.card-grid,.glossary-list{grid-template-columns:1fr}.guide-card{min-height:0}.feature-card{padding:26px}.feature-card h2{font-size:31px}.footer-top{grid-template-columns:1fr;gap:24px}.footer-top>div:first-child{grid-column:auto}.content{padding-bottom:54px}.article-title{padding:34px 0 25px}.article-body h2{font-size:27px}.hero h1{font-size:46px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.guide-card{transition:none}}