@charset "UTF-8";
fieldset{border:0;margin:0;padding:0;min-width:0}fieldset:disabled{opacity:.55}
:root{--ink:#17212b;--text:#39434e;--muted:#68727e;--paper:#fff;--white:#fff;--line:#e1e6ec;--lime:#edf4ff;--soft:#f3f6f9;--radius:16px;--content:1180px;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--paper);font-size:16px;line-height:1.65}
*{box-sizing:border-box}body{margin:0}a{color:var(--ink);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #1769e0;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--ink);line-height:1.12}h1,h2,.serif{font-family:Georgia,'Times New Roman',serif;font-weight:400;letter-spacing:-.04em}h1{font-size:clamp(2.5rem,5.6vw,4.8rem)}h2{font-size:clamp(1.8rem,3vw,2.6rem)}h3{font-size:1.25rem;line-height:1.3;letter-spacing:-.025em}p{margin-bottom:1.2rem}img,svg{max-width:100%}code{white-space:pre-wrap;overflow-wrap:anywhere}pre{padding:1.4rem;background:var(--soft);border-radius:12px;overflow:auto}ul,ol{padding-left:1.4rem}li+li{margin-top:.55rem}[hidden]{display:none!important}.wrap{max-width:var(--content);margin:auto;padding:0 30px}.skip{position:absolute;top:-100px;left:20px;background:var(--ink);color:white;padding:12px;z-index:10}.skip:focus{top:10px}.site-header{border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:94px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:1.35rem;letter-spacing:-.06em;font-weight:700;white-space:nowrap}.brand svg{width:34px;height:34px}.brand span{font-weight:400}.nav{display:flex;gap:32px;align-items:center;font-size:.9rem}.nav a{text-decoration:none;white-space:nowrap}.nav a[aria-current=page]{text-decoration:underline}.nav .nav-feature{border:1px solid #a3b3a5;border-radius:99px;padding:9px 18px}.eyebrow{text-transform:uppercase;font-size:.72rem;letter-spacing:.17em;font-weight:700;color:var(--muted);margin-bottom:20px}.hero{display:grid;grid-template-columns:1.25fr 1fr;gap:64px;align-items:center;padding-top:68px;padding-bottom:64px}.hero h1{max-width:680px;margin-bottom:26px}.hero .intro{max-width:540px;font-size:1.06rem;line-height:1.8;color:var(--muted)}.buttons{display:flex;flex-wrap:wrap;gap:20px;align-items:center;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;gap:25px;border:1px solid var(--ink);background:var(--ink);color:white;text-decoration:none;padding:13px 22px;border-radius:7px;font-size:.9rem;font-weight:600}.button:hover{background:#285248}.button.secondary{color:var(--ink);background:transparent}.text-link{font-size:.9rem;font-weight:600}.comparison-art{padding:30px;background:var(--soft);border-radius:var(--radius);border:1px solid #e0e5d5;transform:rotate(1deg)}.comparison-art .eyebrow{margin:0 0 20px}.comparison-art h2{font-size:2rem;margin:22px 0 14px}.comparison-art p{font-size:.9rem;color:var(--muted);margin-bottom:18px}.art-stage{display:grid;grid-template-columns:1fr 32px 1fr;align-items:center;gap:4px;height:132px}.art-tile{height:132px;border-radius:10px;display:flex;flex-direction:column;justify-content:center;align-items:center;background:var(--white);gap:7px}.art-tile.dark{background:var(--ink);color:var(--lime)}.art-tile svg{width:64px;height:55px}.art-tile strong{font-size:.75rem;font-weight:500;letter-spacing:.1em}.vs{text-align:center;font-family:Georgia,serif;color:var(--muted);font-style:italic}.standards-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;gap:24px}.standard{display:flex;align-items:center;gap:12px;font-size:.83rem}.standard svg{width:20px;height:20px;flex:none}.section{padding:60px 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}.section-heading h2{margin-bottom:8px}.section-heading p{color:var(--muted);margin:0;font-size:.94rem}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.guide-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:25px;display:flex;flex-direction:column;transition:border-color .15s,transform .15s;min-width:0}.guide-card:hover{border-color:#9ebfe7;transform:translateY(-2px)}.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}.tag{font-size:.68rem;letter-spacing:.035em;background:var(--soft);padding:5px 9px;border-radius:5px;color:var(--ink)}.card-index{font-family:Georgia,serif;font-size:1rem;color:var(--muted)}.guide-card h3{margin:0 0 13px;font-weight:500;font-size:1.4rem;line-height:1.3}.guide-card h3 a{text-decoration:none}.guide-card p{font-size:.9rem;line-height:1.75;color:var(--muted);margin-bottom:26px}.card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:auto;font-size:.72rem;color:var(--muted)}.card-meta a{font-size:1.2rem;text-decoration:none;line-height:1}.tool-band{background:var(--ink);color:#e3eae1;border-radius:var(--radius);padding:40px;display:grid;grid-template-columns:1fr 1.2fr;gap:50px}.tool-band h2,.tool-band .eyebrow{color:#f0f4d6}.tool-band p{color:#cad6cb;font-size:.95rem}.tool-links{display:flex;flex-direction:column;gap:16px}.tool-link{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;border:1px solid #5a7467;color:#f5f7ee;text-decoration:none;border-radius:9px}.tool-link:hover{background:#244b3e}.tool-link small{display:block;color:#c4d4c6;font-size:.78rem;margin-top:4px}.approach{display:grid;grid-template-columns:1fr 1.3fr;gap:80px;padding-top:60px;padding-bottom:64px}.approach p{color:var(--muted);max-width:650px}.site-footer{border-top:1px solid var(--line);padding:38px 0 26px;font-size:.8rem;color:var(--muted)}.footer-main{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;margin-bottom:28px}.footer-brand{font-size:1.2rem;font-weight:600;letter-spacing:-.04em;color:var(--ink);margin-bottom:8px}.footer-main p{max-width:370px;font-size:.85rem}.footer-links{display:flex;gap:10px 22px;flex-wrap:wrap;align-content:start}.footer-links a{font-size:.78rem}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:20px;font-size:.7rem}.page-heading{padding:54px 0 35px;max-width:860px}.page-heading h1{font-size:clamp(2.6rem,5vw,4.1rem);margin-bottom:20px}.page-heading .lead{font-size:1.08rem;color:var(--muted);max-width:750px}.breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;color:var(--muted);font-size:.75rem;margin:0 0 25px}.breadcrumbs li+li{margin:0}.breadcrumbs li+li:before{content:'/';padding-right:10px;color:#a4aea3}.breadcrumbs a{text-decoration:none}.filters{display:grid;grid-template-columns:1fr 240px auto;gap:16px;align-items:end;background:var(--soft);padding:22px;border-radius:12px;margin-bottom:12px}label{display:block;font-size:.82rem;font-weight:600;margin-bottom:7px}input,textarea,select{width:100%;border:1px solid #9cae9e;border-radius:6px;background:#fff;color:var(--text);padding:11px 12px}textarea{resize:vertical;min-height:125px}#search-count{color:var(--muted);font-size:.8rem;margin-bottom:25px}#empty-search{padding:45px;text-align:center;border:1px dashed var(--line);border-radius:12px;grid-column:1/-1}.article-layout{display:grid;grid-template-columns:minmax(0,780px) 250px;gap:55px;align-items:start;padding-bottom:70px}.article{min-width:0}.article section{margin-top:40px;scroll-margin-top:24px}.article section h2,.prose h2{font-size:1.9rem;line-height:1.2;letter-spacing:-.035em;margin-top:34px;margin-bottom:18px}.article p,.article li,.prose p,.prose li{font-size:1rem;line-height:1.85}.article-meta{display:flex;gap:8px 20px;flex-wrap:wrap;color:var(--muted);font-size:.77rem}.article-meta a{color:var(--muted)}.answer{padding:28px;background:var(--soft);border-left:3px solid #abc7e9;border-radius:0 12px 12px 0}.answer .eyebrow{margin-bottom:12px}.answer p{margin-bottom:0;font-size:1.08rem}.takeaways{border-bottom:1px solid var(--line);padding-bottom:28px}.takeaways h2{font-size:1.6rem}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:10px}table{border-collapse:collapse;width:100%;font-size:.9rem;min-width:500px}caption{text-align:left;font-weight:600;padding:14px 18px;background:var(--soft)}th,td{text-align:left;vertical-align:top;padding:15px 18px;border-top:1px solid var(--line);line-height:1.65}thead{background:var(--soft)}th{color:var(--ink)}tbody th{width:23%;font-weight:600}tbody td{width:38.5%}.toc{border:1px solid var(--line);border-radius:10px;padding:23px;background:#fff;font-size:.8rem;position:sticky;top:24px}.toc p{font-weight:600;margin-bottom:12px}.toc ol{padding-left:18px;margin:0}.toc a{text-decoration:none}.toc li{line-height:1.55;margin-top:12px}.note{padding:18px 22px;background:var(--soft);border-radius:8px;font-size:.9rem!important}.faq{border-top:1px solid var(--line);padding:16px 0}.faq:last-child{border-bottom:1px solid var(--line)}.faq summary{font-weight:600;color:var(--ink);cursor:pointer}.faq p{margin:12px 0 0}.sources{padding:25px;background:var(--soft);border-radius:10px}.sources h2{margin-top:0!important}.sources a{overflow-wrap:anywhere}.sources li{font-size:.88rem}.prose{max-width:780px;padding-bottom:65px}.prose h1{font-size:3rem}.related{border-top:1px solid var(--line);padding-top:35px}.related .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.related h2{font-size:1.8rem}.tool-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:start;padding-bottom:30px}.calculator{padding:28px;background:#fff;border:1px solid var(--line);border-radius:12px}.calculator h2{font-size:1.55rem;margin:0 0 20px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.field-help{font-size:.78rem;color:var(--muted);margin:8px 0 0}.tool-error{color:#973b29;font-size:.9rem;margin:12px 0 0}.tool-results{padding:25px;background:var(--soft);border-radius:10px;margin-top:25px}.tool-results h3{font-size:1rem;margin-bottom:17px}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.result-item span{display:block;color:var(--muted);font-size:.77rem}.result-item strong{display:block;font-size:1.55rem;font-weight:500;color:var(--ink);overflow-wrap:anywhere}.working{font-size:.8rem;margin:20px 0 0;overflow-wrap:anywhere}.tool-explanation h2{font-size:1.7rem}.tool-explanation p{font-size:.94rem;color:var(--muted)}.tool-explanation .note{font-size:.86rem!important}.small{font-size:.82rem!important;color:var(--muted)}.error-page{min-height:55vh;padding:80px 0}.error-page p{max-width:600px}
@media(min-width:1500px){:root{--content:1280px}.hero{gap:100px}.hero h1{font-size:5rem}}
@media(max-width:960px){.hero{gap:30px}.hero h1{font-size:3.6rem}.comparison-art{padding:23px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:minmax(0,1fr);gap:25px}.toc{position:static;grid-row:1}.toc ol{columns:2}.tool-band{gap:25px;padding:30px}.approach{gap:40px}.tool-layout{gap:25px}.nav{gap:22px}}
@media(max-width:640px){.wrap{padding:0 20px}.header-inner{min-height:104px;gap:13px;flex-direction:column;justify-content:center;padding-top:16px;padding-bottom:16px}.brand{font-size:1.2rem}.brand svg{width:28px;height:28px}.nav{width:100%;justify-content:space-between;gap:12px;font-size:.78rem}.nav .nav-feature{padding:5px 10px}.hero{grid-template-columns:1fr;padding-top:36px;padding-bottom:36px;gap:30px}.hero h1{font-size:3.1rem;line-height:1.06;margin-bottom:20px}.hero .intro{font-size:.95rem}.comparison-art{transform:none;padding:22px}.comparison-art h2{font-size:1.85rem}.art-stage,.art-tile{height:105px}.standards-strip{grid-template-columns:1fr;gap:13px;padding:18px 0}.standard{font-size:.8rem}.section{padding:38px 0}.section-heading{align-items:start;gap:20px;flex-direction:column;margin-bottom:22px}.card-grid{grid-template-columns:1fr;gap:15px}.guide-card{padding:22px}.card-top{margin-bottom:17px}.guide-card p{margin-bottom:20px}.tool-band{grid-template-columns:1fr;padding:25px;gap:10px}.tool-link{padding:16px}.approach{grid-template-columns:1fr;gap:4px;padding-top:38px;padding-bottom:38px}.footer-main{grid-template-columns:1fr;gap:18px;margin-bottom:25px}.footer-bottom{flex-direction:column;gap:8px}.page-heading{padding-top:30px;padding-bottom:28px}.page-heading h1{font-size:2.6rem}.page-heading .lead{font-size:1rem}.filters{grid-template-columns:1fr;padding:18px}.filters button{justify-self:start}.toc ol{columns:1}.article-layout{padding-bottom:35px}.answer{padding:22px}.article p,.article li,.prose p,.prose li{font-size:.96rem}.article section h2,.prose h2{font-size:1.65rem}.related .card-grid{grid-template-columns:1fr}.tool-layout{grid-template-columns:1fr}.calculator{padding:20px}.field-grid{gap:16px}.result-item strong{font-size:1.3rem}.tool-results{padding:20px}.button{gap:16px;font-size:.84rem;padding:12px 18px}.prose{padding-bottom:40px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.site-header,.site-footer,.toc,.buttons,.related,.filters{display:none}.wrap{max-width:none;padding:0}.article-layout{display:block}body{background:white}a{color:black}.table-scroll{overflow:visible}h2,h3{break-after:avoid}table,.answer{break-inside:avoid}}