:root{color-scheme:light;--bg:#f7f9fd;--surface:#fff;--ink:#172544;--muted:#59677f;--line:#dce3ef;--accent:#345ec9;--cyan:#79c9de;--tint:#eaf0ff;--shadow:0 12px 36px #17254408}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--accent);text-underline-offset:.2em}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:3px}img{max-width:100%}.skip-link{position:absolute;left:1rem;top:-5rem;background:var(--surface);padding:.5rem 1rem;z-index:10}.skip-link:focus{top:1rem}.site-header{background:var(--surface);border-bottom:1px solid var(--line)}.header-inner{max-width:1120px;margin:auto;padding:20px 28px;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{display:flex;gap:10px;align-items:center;color:var(--ink);font-size:24px;font-weight:760;text-decoration:none;letter-spacing:-.6px}.brand img{width:36px;height:36px}.top-nav{display:flex;gap:24px;align-items:center;font-size:14px;font-weight:650}.top-nav a{text-decoration:none}.top-nav a[aria-current=page]{border-bottom:2px solid var(--accent)}.preview-note{max-width:1064px;margin:16px auto 0;padding:8px 14px;border:1px solid var(--line);border-radius:8px;font-size:12px;color:var(--muted);background:var(--surface)}main{max-width:860px;margin:auto;padding:40px 28px 64px}.index-main{max-width:1120px}.breadcrumb{font-size:13px;margin:0 0 20px}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:750;color:var(--accent);margin:0 0 14px}h1{font-family:Georgia,"Times New Roman",serif;font-weight:500;font-size:clamp(32px,4.5vw,48px);line-height:1.17;letter-spacing:-.025em;margin:0 0 20px;max-width:22ch}h2{font-size:24px;line-height:1.3;letter-spacing:-.02em;margin:34px 0 12px;scroll-margin-top:20px}h3{font-size:19px;line-height:1.35;margin:0 0 10px}.article-meta{font-size:13px;color:var(--muted);margin:0 0 28px}.article-body>p:first-child{font-size:19px;line-height:1.75}.article-body p{margin:0 0 18px}.article-body ul,.article-body ol{padding-left:26px}.article-body li{margin-bottom:12px}.article-body a{overflow-wrap:anywhere}.intro{font-size:20px;max-width:700px;color:var(--muted)}.category-nav{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 36px}.category-nav a{border:1px solid var(--line);background:var(--surface);padding:7px 12px;border-radius:24px;font-size:13px;text-decoration:none}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.guide-card{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:24px;box-shadow:var(--shadow)}.guide-card h3 a{color:var(--ink);text-decoration:none}.guide-card h3 a:hover{text-decoration:underline}.guide-card p{font-size:15px;color:var(--muted);margin:0 0 16px}.read-link{font-size:14px;font-weight:700}.group{margin-bottom:38px;scroll-margin-top:20px}.toc{margin:24px 0 32px;padding:18px 22px;background:var(--surface);border:1px solid var(--line);border-radius:12px;font-size:14px}.toc strong{display:block;margin-bottom:8px}.toc ul{margin:0;padding-left:20px;columns:2;column-gap:30px}.toc li{break-inside:avoid;margin:0 0 6px}.reference-appendix{margin-top:38px;border-top:1px solid var(--line);padding-top:4px}.review-note,.disclaimer,small{font-size:13px;color:var(--muted)}details{border:1px solid var(--line);background:var(--surface);border-radius:10px;margin:16px 0;overflow:hidden}summary{padding:15px 18px;cursor:pointer;font-weight:650;font-size:15px}details>table{display:block;overflow-x:auto;margin:0;width:100%}table{border-collapse:collapse;font-size:13px;line-height:1.55;min-width:620px}th,td{padding:12px 14px;border:1px solid var(--line);vertical-align:top;text-align:left}th{background:var(--tint)}td a{display:inline-block;margin:3px 0}td ul{padding-left:16px}.related{margin-top:38px;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:14px}.related h2{margin:0 0 12px;font-size:20px}.related ul{margin:0;padding-left:20px}.related li{margin:7px 0}.guide-cta{margin-top:28px;padding:26px;background:var(--tint);border-radius:14px}.guide-cta h2{margin:0 0 10px}.guide-cta p{font-size:15px;margin:0 0 18px}.button{display:inline-block;background:var(--accent);color:#fff;padding:10px 18px;border-radius:8px;text-decoration:none;font-size:14px;font-weight:700}.site-footer{border-top:1px solid var(--line);background:var(--surface)}.footer-inner{max-width:1064px;padding:28px;margin:auto;font-size:13px;color:var(--muted)}.footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px;margin-bottom:15px}.footer-nav{display:flex;flex-wrap:wrap;gap:18px}.footer-inner p{margin:10px 0;max-width:960px}.footer-inner a{font-weight:600}.support{white-space:nowrap}@media(max-width:650px){body{font-size:16px}.header-inner{padding:16px 20px;gap:15px}.brand{font-size:22px}.brand img{width:30px;height:30px}.top-nav{gap:15px;font-size:13px}.preview-note{margin:12px 20px 0}.guide-grid{grid-template-columns:1fr}main{padding:28px 20px 44px}.guide-card{padding:21px}.toc ul{columns:1}.article-body>p:first-child{font-size:18px}.footer-inner{padding:25px 20px}h2{font-size:22px}}@media print{.site-header,.preview-note,.toc,.guide-cta,.site-footer,.related,.skip-link{display:none}body{color:#111;background:#fff;font-size:11pt}main{padding:0;max-width:none}details{display:block}details>table{display:table}a{color:#111}.reference-appendix{break-before:page}}

.guide-grid{list-style:none;padding:0}

/* Shared BarReqs visual language; article layout remains reading-focused. */
@font-face{font-family:RepDisplay;src:url('/fonts/RepDisplay.woff') format('woff');font-weight:800;font-display:swap}
:root{
  --paper:#f6f4eb;--ink:#202535;--lime:#d4f34a;--purple:#c2aff0;--orange:#ff794b;
  --bg:var(--paper);--surface:#fffef9;--muted:#465066;--line:#a8acb5;
  --accent:#533580;--tint:#eee8fa;--focus:#6841a0;--shadow:5px 5px 0 var(--ink);
  --font-display:RepDisplay,Arial,Helvetica,sans-serif;--font-body:Arial,Helvetica,sans-serif;
  color-scheme:light;
}
body{background:var(--paper);color:var(--ink);font:17px/1.75 var(--font-body)}
::selection{background:var(--purple);color:var(--ink)}
a{color:var(--accent);text-underline-offset:4px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:4px}
a,summary{touch-action:manipulation}
p,li,a,h1,h2,h3{overflow-wrap:break-word}
.site-header{background:var(--paper);border-bottom:2px solid var(--ink)}
.header-inner{max-width:1352px;min-height:106px;padding:22px 48px;gap:24px}
.brand{font:800 34px/1.2 var(--font-display);letter-spacing:-2px;color:var(--ink);gap:11px}
.brand img{width:42px;height:42px;flex-shrink:0}
.top-nav{gap:24px;font-size:16px;font-weight:700;flex-wrap:wrap}
.top-nav a{display:inline-flex;align-items:center;min-height:44px;padding:8px 2px;color:var(--ink)}
.top-nav a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:5px}
.top-nav a[aria-current=page]{border-bottom:2px solid var(--ink)}
.top-nav a[data-guide-calculator]{background:var(--lime);border:2px solid var(--ink);border-radius:4px;padding:9px 16px;color:var(--ink)}
main{max-width:860px;padding:48px 32px 64px}
.index-main{max-width:1352px;padding:60px 48px 64px}
.breadcrumb{font-size:14px;margin-bottom:24px}
.eyebrow{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:14px;font-weight:700;letter-spacing:.025em;text-transform:none;margin-bottom:22px}
.eyebrow::before{content:'';display:inline-block;width:10px;height:10px;border:1.5px solid var(--ink);border-radius:50%;background:var(--orange);flex-shrink:0}
h1{font:800 clamp(35px,4.2vw,54px)/1.1 var(--font-display);letter-spacing:-.055em;margin-bottom:24px;max-width:24ch}
.index-main h1{font-size:clamp(42px,4.7vw,67px);line-height:1.05;letter-spacing:-.065em}
h2{font:800 28px/1.25 var(--font-display);letter-spacing:-.04em;color:var(--ink);margin:36px 0 14px}
h3{font:700 20px/1.4 var(--font-body);letter-spacing:0}
.intro{font-size:18px;line-height:1.65;color:#303952;max-width:700px}
.article-body p,.article-body li{color:#303952}
.article-body>p:first-child{font-size:19px;line-height:1.7}
.article-meta{font-size:14px;line-height:1.6}
.category-nav{gap:12px;margin:28px 0 40px}
.category-nav a{display:inline-flex;align-items:center;min-height:44px;border:1.5px solid var(--ink);border-radius:4px;padding:8px 14px;font-size:14px;font-weight:700;color:var(--ink)}
.category-nav a:hover{background:var(--lime)}
.group{border-top:2px solid var(--ink);padding-top:10px;margin-bottom:40px}
.guide-grid{gap:24px;list-style:none;padding:0}
.guide-card{border:2px solid var(--ink);border-top:7px solid var(--purple);border-radius:4px;background:var(--surface);padding:25px;box-shadow:var(--shadow)}
.guide-card p{font-size:16px;line-height:1.65;color:#303952}
.read-link{display:inline-flex;align-items:center;min-height:44px;font-size:15px;font-weight:700;color:var(--ink)}
.toc{border:1.5px solid var(--ink);border-left:7px solid var(--purple);border-radius:4px;padding:20px 24px;font-size:15px}
.toc strong{font-size:17px}
.reference-appendix{border-top:2px solid var(--ink)}
details{border:1.5px solid var(--ink);border-radius:4px}
summary{min-height:48px;font-size:16px;padding:16px 18px}
summary:hover{background:var(--tint)}
table{font-size:14px;line-height:1.65}
th{background:var(--tint);color:var(--ink)}
.related{border:1.5px solid var(--ink);border-left:7px solid var(--purple);border-radius:4px;padding:25px 28px}
.related h2{font-size:26px}
.guide-cta{background:var(--purple);border:2px solid var(--ink);border-radius:4px;box-shadow:var(--shadow);padding:27px}
.guide-cta h2{font-size:28px}
.guide-cta p{font-size:17px;line-height:1.65;color:#303952}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:12px 22px;background:var(--lime);color:var(--ink);border:2px solid var(--ink);border-radius:4px;box-shadow:3px 3px 0 var(--ink);font:700 17px/1.5 var(--font-body)}
.button:hover{background:var(--surface);text-decoration:underline}
.site-footer{border-top:2px solid var(--ink);background:var(--paper)}
.footer-inner{max-width:1352px;padding:27px 48px 33px;font-size:14px;line-height:1.7;color:#303952}
.footer-nav{gap:24px}
.footer-nav a{display:inline-flex;align-items:center;min-height:44px;font-size:15px;color:var(--ink)}
.footer-top{gap:20px;align-items:center}
.footer-inner p{max-width:1050px}
.skip-link{border:2px solid var(--ink);color:var(--ink);background:var(--lime)}
@media(max-width:1050px){.header-inner,.index-main,.footer-inner{padding-inline:30px}}
@media(max-width:650px){
  body{font-size:16px}.header-inner{min-height:88px;padding:18px 20px;gap:12px;flex-wrap:wrap}
  .brand{font-size:30px}.brand img{width:36px;height:36px}.top-nav{gap:16px;font-size:14px}
  .top-nav a[data-guide-calculator]{padding:8px 12px}.index-main,main{padding:32px 20px 44px}
  h1{font-size:38px;letter-spacing:-.045em}.index-main h1{font-size:42px}.eyebrow{font-size:13px}
  .guide-grid{grid-template-columns:1fr;gap:22px}.guide-card{padding:21px}
  .category-nav{gap:10px}.category-nav a{font-size:13px}.toc{padding:18px}.toc ul{columns:1}
  h2{font-size:25px}.article-body>p:first-child{font-size:18px}.guide-cta,.related{padding:22px}
  .footer-inner{padding:25px 20px 29px}.footer-top{align-items:flex-start;flex-direction:column;gap:11px}.footer-nav{gap:9px 21px}
}
@media print{body{color:#111;background:#fff;font-size:11pt}main,.index-main{padding:0;max-width:none}h1{font-size:28pt}.guide-card{box-shadow:none}.site-header,.site-footer,.guide-cta,.related,.toc,.skip-link{display:none}a{color:#111}}

/* Keep keyboard focus visible inside clipped disclosure panels and bound the
   horizontal table scroller to the article column on narrow screens. */
summary:focus-visible{outline-offset:-5px}
details>table{width:100%;max-width:100%;min-width:0}
details>table th,details>table td{min-width:140px}