:root{
  --bg:#ffffff; --ink:#1a2230; --muted:#5b6675; --line:#e4e8ee;
  --brand:#0b4f6c; --brand-2:#0a7ea4; --accent:#c2410c;
  --good:#1c7c4a; --good-bg:#eafaf0; --bad:#b42318; --bad-bg:#fdeceb;
  --note-bg:#eef6fb; --warn-bg:#fff6e8; --warn:#a15c00;
  --soft:#f6f8fa; --maxw:1160px; --read:none;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--ink);background:var(--bg);
  font:400 17px/1.68 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
a{color:var(--brand-2);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);font-weight:700}
h1{font-size:2.15rem;margin:.2em 0 .5em}
h2{font-size:1.5rem;margin:1.9em 0 .6em;padding-top:.2em}
h3{font-size:1.18rem;margin:1.5em 0 .4em}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.1em;padding-left:1.3em}
li{margin:.32em 0}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* header */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}
.hbar{display:flex;align-items:center;gap:18px;justify-content:space-between;min-height:64px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--brand);font-size:1.12rem;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand .logo{width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1rem}
.brand small{display:block;font-weight:500;color:var(--muted);font-size:.7rem;letter-spacing:.02em;margin-top:1px}
.nav{display:flex;flex-wrap:wrap;gap:2px}
.nav a{color:var(--ink);font-size:.93rem;font-weight:600;padding:8px 11px;border-radius:7px}
.nav a:hover{background:var(--soft);text-decoration:none;color:var(--brand)}
.nav a.active{color:var(--brand);background:var(--soft)}
.menu-btn{display:none}

/* hero */
.hero{background:linear-gradient(160deg,#0b4f6c 0%,#0a7ea4 100%);color:#fff;padding:56px 0 50px}
.hero h1{color:#fff;max-width:19ch;font-size:2.5rem}
.hero p{color:#dbeef6;font-size:1.18rem;max-width:60ch}
.hero .cta{margin-top:20px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;background:#fff;color:var(--brand);font-weight:700;padding:12px 20px;border-radius:9px}
.btn:hover{text-decoration:none;background:#eaf4f8}
.btn.ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.6)}

/* layout */
main{padding:38px 0 60px}
.layout{display:grid;grid-template-columns:1fr;gap:14px}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.breadcrumb a{color:var(--muted)}
.article{max-width:74ch}
.lede{font-size:1.2rem;color:#33404f;margin-bottom:1.4em}
.updated{font-size:.82rem;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:36px}

/* callouts */
.callout{border:1px solid var(--line);border-left-width:4px;border-radius:8px;padding:16px 18px;margin:1.4em 0;background:var(--note-bg)}
.callout .callout-title{font-weight:700;margin:0 0 .35em}
.callout p:last-child{margin-bottom:0}
.callout-note{background:var(--note-bg);border-left-color:var(--brand-2)}
.callout-warn{background:var(--warn-bg);border-left-color:var(--warn)}
.callout-key{background:#f2f0fb;border-left-color:#6d5ae0}

/* good/bad */
.gb-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:1.4em 0}
.gb{border:1px solid var(--line);border-radius:10px;padding:6px 18px 10px}
.gb h3{margin:.8em 0 .2em}
.gb-good{background:var(--good-bg)}
.gb-good h3{color:var(--good)}
.gb-bad{background:var(--bad-bg)}
.gb-bad h3{color:var(--bad)}

/* tables */
.table-wrap{overflow-x:auto;margin:1.4em 0}
table{border-collapse:collapse;width:100%;font-size:.94rem}
th,td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
th{background:var(--soft);font-weight:700}

/* sources */
.sources{margin-top:40px;background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:6px 20px 14px}
.sources h2{font-size:1.05rem;margin-top:.9em}
.sources ul{padding-left:1.1em}
.sources li{font-size:.9rem;word-break:break-word}

/* related / section index */
.related{margin-top:40px;border-top:1px solid var(--line);padding-top:22px}
.related h2{font-size:1.1rem;margin-top:0}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{display:block;border:1px solid var(--line);border-radius:10px;padding:16px 18px;background:#fff;transition:box-shadow .15s,border-color .15s}
.card:hover{text-decoration:none;box-shadow:0 6px 22px rgba(11,79,108,.09);border-color:#cfe0e8}
.card .eyebrow{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--brand-2);font-weight:700}
.card h3{margin:.35em 0 .3em;font-size:1.05rem;color:var(--ink)}
.card p{font-size:.9rem;color:var(--muted);margin:0}

/* home sections */
.home-sec{margin:44px 0}
.home-sec>h2{font-size:1.4rem;border-bottom:2px solid var(--line);padding-bottom:.3em}
.section-lead{color:var(--muted);max-width:70ch;margin-top:-.3em}

/* footer */
.site-footer{background:#0e1a24;color:#c4d2db;margin-top:40px;padding:44px 0 30px;font-size:.9rem}
.site-footer a{color:#9fd3e6}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:26px}
.foot-grid h4{color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;margin:0 0 .7em}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{margin:.3em 0}
.foot-bottom{border-top:1px solid #22323d;margin-top:30px;padding-top:18px;color:#8ba3af;font-size:.82rem}
.foot-disc{max-width:80ch}

/* misc */
.tag{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--brand-2);background:var(--soft);border:1px solid var(--line);padding:3px 9px;border-radius:20px;margin-bottom:10px}
.toc{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:8px 20px;margin:0 0 26px}
.toc h2{font-size:.95rem;margin:.9em 0 .4em}
.toc ul{columns:2;column-gap:30px}
@media(max-width:760px){
  .toc ul{columns:1}
  .gb-grid{grid-template-columns:1fr}
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;border-bottom:1px solid var(--line);padding:8px 14px;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .nav.open{display:flex}
  .nav a{padding:11px 8px}
  .menu-btn{display:inline-flex;align-items:center;gap:7px;background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-weight:700;color:var(--ink);cursor:pointer;font-size:.9rem}
  .hero h1{font-size:2rem}
  h1{font-size:1.8rem}
  .brand small{display:none}
}

/* logo + brand */
.brand .logo{width:42px;height:42px;border-radius:9px;display:block;flex:0 0 auto}
.brand-name{display:flex;flex-direction:column;line-height:1.1}
/* home lead */
.section-lead-lg{font-size:1.12rem;color:#33404f;margin-top:0}
/* footer link rows with visible separators */
.foot-nav{text-align:center;padding-bottom:14px}
.foot-nav-title{color:#fff;font-size:.78rem;text-transform:uppercase;letter-spacing:.07em;font-weight:700;margin:0 0 8px}
.foot-links{text-align:center;line-height:2.1;font-size:.92rem;margin:0}
.foot-links a{color:#c4d2db;font-weight:600;white-space:nowrap;padding:0 2px}
.foot-links a:hover{color:#fff}
.foot-sep{color:#3a4c58;padding:0 2px;font-weight:400}
.foot-util{padding:14px 0 20px;border-top:1px solid #22323d;border-bottom:1px solid #22323d;margin-top:6px}
.foot-resource{margin:.6em 0 0}
.foot-resource a{font-weight:700}
.site-footer .foot-bottom{border-top:0;margin-top:20px;padding-top:0}
/* html sitemap page */
.sitemap-cols{columns:2;column-gap:40px;margin:1.2em 0}
.sitemap-sec{break-inside:avoid;margin:0 0 22px}
.sitemap-sec h2{font-size:1.05rem;margin:0 0 .4em;padding:0}
.sitemap-sec ul{list-style:none;padding:0;margin:0}
.sitemap-sec li{margin:.28em 0;font-size:.95rem}
@media(max-width:680px){.sitemap-cols{columns:1}}
/* checklist styling */
ul.checklist{list-style:none;padding-left:0}
ul.checklist li{position:relative;padding-left:30px;margin:.5em 0}
ul.checklist li:before{content:"";position:absolute;left:2px;top:.35em;width:16px;height:16px;border:2px solid var(--brand-2);border-radius:4px}
/* contact form */
.contact-form{max-width:640px;margin:1.4em 0;background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:22px 24px}
.contact-form label{display:block;font-weight:600;margin:14px 0 5px;font-size:.95rem}
.contact-form input,.contact-form textarea{width:100%;padding:11px 13px;border:1px solid #cfd7df;border-radius:8px;font:inherit;font-size:1rem;background:#fff}
.contact-form textarea{min-height:150px;resize:vertical}
.contact-form button{margin-top:18px;background:var(--brand);color:#fff;border:0;border-radius:9px;padding:12px 22px;font-weight:700;font-size:1rem;cursor:pointer}
.contact-form button:hover{background:var(--brand-2)}
.contact-note{font-size:.86rem;color:var(--muted);margin-top:12px}
/* copy-to-clipboard disclosure box */
.disc-box{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:1.4em 0;background:#fff}
.disc-box-head{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--soft);border-bottom:1px solid var(--line);padding:9px 14px}
.disc-box-head2{border-top:1px solid var(--line)}
.disc-box-label{font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em;color:var(--brand)}
.copy-btn{background:var(--brand);color:#fff;border:0;border-radius:7px;padding:7px 15px;font-weight:700;font-size:.85rem;cursor:pointer;white-space:nowrap}
.copy-btn:hover{background:var(--brand-2)}
.copy-btn.copied{background:var(--good)}
.disc-text,.disc-code{width:100%;border:0;padding:14px;font-size:.98rem;line-height:1.55;resize:vertical;display:block;background:#fff;color:var(--ink)}
.disc-code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.85rem;background:#0e1a24;color:#d7e6ee}
.disc-box-help{font-size:.86rem;color:var(--muted);margin:0;padding:10px 14px;background:var(--soft);border-top:1px solid var(--line)}
/* entity map page */
.em-article{max-width:80ch}
.em-toc{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:0 0 26px;font-size:.92rem;line-height:1.9}
.em-entity{border:1px solid var(--line);border-radius:12px;padding:6px 22px 18px;margin:0 0 20px;background:#fff}
.em-entity h2{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:1.25rem;margin-top:.7em}
.em-type{font-size:.68rem;text-transform:uppercase;letter-spacing:.06em;font-weight:700;color:var(--brand-2);background:var(--soft);border:1px solid var(--line);padding:3px 9px;border-radius:20px}
.em-alt{font-size:.9rem;font-weight:500;color:var(--muted)}
.em-desc{margin:.2em 0 .6em}
.em-same{font-size:.9rem;margin:.2em 0 .6em}
.em-entity blockquote{margin:.6em 0;padding:12px 16px;background:var(--soft);border-left:4px solid var(--brand-2);border-radius:0 8px 8px 0;font-size:.97rem;color:#2b3947}
.em-attr{font-size:.84rem;color:var(--muted);margin:.2em 0 .6em}
.em-rels{margin-top:.4em}
.em-rels h3{font-size:.95rem;margin:.4em 0 .3em}
.em-rels ul{list-style:none;padding-left:0;margin:0}
.em-rels li{font-size:.92rem;margin:.2em 0}
.em-pred{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.8rem;font-weight:700;color:var(--brand);background:var(--soft);border:1px solid var(--line);padding:1px 7px;border-radius:5px}