:root{
  --bg:#e9eef2;--surface:#fff;--surface-2:#f3f6f8;--surface-3:#e1e8ee;
  --line:#a8b6c2;--line-dark:#7d91a2;--line-light:#d8e0e6;
  --text:#1f2a33;--muted:#5f6d78;--link:#245d91;--link-hover:#143f66;
  --head:#315f86;--head-dark:#244b6b;--head-light:#dce8f1;
  --warn-bg:#fff8df;--warn-line:#d4bd72;--ok-bg:#edf7ee;--ok-line:#9fc3a3;
  --max:1480px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.48 Arial,Helvetica,sans-serif}a{color:var(--link);text-decoration:none}a:hover{color:var(--link-hover);text-decoration:underline}.container{width:min(calc(100% - 24px),var(--max));margin:0 auto}.skip{position:absolute;left:-10000px;top:auto}.skip:focus{left:8px;top:8px;z-index:1000;background:#fff;border:1px solid var(--line-dark);padding:6px 9px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Portal chrome: compact, table-like and intentionally non-SaaS. */
.utility-bar{background:#263a4b;color:#dbe5ec;border-bottom:1px solid #172735;font-size:12px}.utility-row{min-height:27px;display:flex;align-items:center;justify-content:space-between;gap:14px}.utility-row nav{display:flex;gap:13px}.utility-row a{color:#e9f0f5}.site-header{background:#d8e2e9;border-bottom:1px solid var(--line-dark);box-shadow:inset 0 1px #fff}.brand-row{min-height:62px;display:flex;align-items:center;gap:14px}.brand{display:inline-flex;align-items:center;gap:9px;color:#203343;text-decoration:none;min-width:255px}.brand:hover{text-decoration:none}.brand-mark{width:38px;height:38px;border:1px solid #1f496a;background:linear-gradient(#4c7ca4,#2e5d83);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:bold;box-shadow:inset 0 1px rgba(255,255,255,.65),inset 1px 0 rgba(255,255,255,.22)}.brand-copy{display:flex;flex-direction:column;line-height:1.18}.brand-copy b{font-size:18px}.brand-copy small{font-size:11px;color:#61717e;margin-top:2px;font-weight:normal}.portal-search{display:flex;min-width:0}.header-search{margin-left:auto;width:min(570px,48vw)}.portal-search input{height:34px;min-width:0;flex:1;border:1px solid var(--line-dark);border-right:0;background:#fff;padding:6px 9px;font:inherit;box-shadow:inset 1px 1px 2px rgba(30,50,65,.08)}.portal-search button,.btn,button.btn{min-height:34px;border:1px solid #204d72;background:linear-gradient(#4b7da7,#2f6088);color:#fff;padding:6px 13px;font:inherit;font-weight:bold;cursor:pointer;box-shadow:inset 0 1px rgba(255,255,255,.55)}.portal-search button:hover,.btn:hover{background:linear-gradient(#3f719c,#275577);text-decoration:none;color:#fff}.btn.secondary{border-color:#8fa2b2;background:linear-gradient(#fff,#e3e9ee);color:#2d4b63}.btn.secondary:hover{background:linear-gradient(#fff,#d7e1e8);color:#1f3e57}.menu-btn{display:none;border:1px solid var(--line-dark);background:linear-gradient(#fff,#dfe6eb);min-height:34px;padding:5px 10px;font-weight:bold;color:#304657;box-shadow:inset 0 1px #fff}.main-nav-wrap{background:linear-gradient(#416f95,#315f86);border-top:1px solid #517ea1;border-bottom:1px solid #214761;box-shadow:inset 0 1px rgba(255,255,255,.22)}.main-nav{display:flex;align-items:stretch;min-height:34px}.main-nav a{display:flex;align-items:center;padding:7px 14px;color:#fff;font-weight:bold;font-size:13px;border-right:1px solid rgba(20,54,80,.7);border-left:1px solid rgba(255,255,255,.13);text-shadow:0 1px rgba(0,0,0,.25)}.main-nav a:first-child{border-left:0}.main-nav a:hover{background:rgba(0,0,0,.1);text-decoration:none}

.portal-layout{display:grid;grid-template-columns:205px minmax(0,1fr) 220px;gap:10px;align-items:start;padding-top:10px;padding-bottom:36px}.page-shell{min-width:0}.portal-sidebar{position:sticky;top:10px;display:grid;gap:9px}.side-panel{border:1px solid var(--line-dark);background:#fff;box-shadow:inset 0 1px #fff}.side-title{padding:6px 8px;border-bottom:1px solid var(--line-dark);background:linear-gradient(#f9fbfc,#d8e3eb);font-size:12px;font-weight:bold;color:#2a475d;text-transform:uppercase;letter-spacing:.025em;box-shadow:inset 0 1px #fff}.side-links{display:flex;flex-direction:column}.side-links a{padding:6px 8px;border-bottom:1px solid #e1e6ea;color:#28577f;font-size:13px}.side-links a:last-child{border-bottom:0}.side-links a:hover{background:#f3f7fa;text-decoration:none}.quick-grid{display:grid;grid-template-columns:1fr 1fr}.quick-grid a{text-align:center;padding:7px 4px;border-right:1px solid #e0e6ea;border-bottom:1px solid #e0e6ea;font-weight:bold}.quick-grid a:nth-child(2n){border-right:0}.quick-grid a:nth-last-child(-n+2){border-bottom:0}

.breadcrumbs{height:30px;display:flex;align-items:center;gap:6px;overflow:hidden;white-space:nowrap;margin:0 0 8px;padding:0 8px;background:#f8fafb;border:1px solid var(--line);font-size:12px;color:var(--muted);box-shadow:inset 0 1px #fff}.breadcrumbs a{color:#557084}.breadcrumbs span:last-child{overflow:hidden;text-overflow:ellipsis}.hero{background:#fff;border:1px solid var(--line-dark);padding:13px 15px;box-shadow:inset 0 1px #fff}.hero:before{content:"";display:block;height:4px;margin:-13px -15px 10px;background:linear-gradient(90deg,#315f86,#7e9db5);border-bottom:1px solid #264e6d}.hero h1{font-size:26px;line-height:1.16;letter-spacing:-.01em;margin:3px 0 7px;color:#233846}.hero.compact h1{font-size:24px}.lead{font-size:15px;line-height:1.5;color:#475865;max-width:1000px;margin:0}.eyebrow{display:inline-block;color:#46677f;font-size:10px;font-weight:bold;letter-spacing:.065em;text-transform:uppercase}.hero-actions,.actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:11px}

.section{margin-top:10px}.compact-section{margin-top:9px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:0;border:1px solid var(--line-dark);border-bottom:0;background:linear-gradient(#fafcfd,#dbe5ec);padding:6px 9px;box-shadow:inset 0 1px #fff}.section-head h2,.content-card h2,.prose-card h2{font-size:16px;line-height:1.25;margin:1px 0 0;color:#28475e}.section-head p{color:#5b6c78;max-width:850px;margin:2px 0 0;font-size:12px}.content-card,.prose-card{background:#fff;border:1px solid var(--line);padding:10px 12px;box-shadow:inset 0 1px #fff}.content-card h2,.prose-card h2{border-bottom:1px solid #dfe5e9;padding-bottom:5px;margin-bottom:7px}.content-card h3,.prose-card h3{font-size:14px;margin:12px 0 4px;color:#314f64}.content-card p,.prose-card p,.prose-card li{color:#3e4d58}.content-card p,.prose-card p{margin:7px 0}.prose-card{max-width:none}.prose-card code{background:#eef2f5;border:1px solid #d2dbe2;padding:1px 4px}.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.portal-article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.compare-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin:8px 0}

.link-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-left:1px solid var(--line);border-top:1px solid var(--line);background:#fff}.link-grid.compact-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.link-card{min-width:0;display:flex;flex-direction:column;gap:2px;padding:8px 9px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(#fff,#f5f7f9);color:var(--text);box-shadow:inset 0 1px #fff}.link-card:hover{background:#edf4f8;text-decoration:none}.link-card b{color:#24577f;font-size:13px;line-height:1.25}.link-card span{font-size:11px;line-height:1.32;color:#64727d;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin-top:8px}.metric{background:linear-gradient(#fff,#f3f6f8);border:1px solid var(--line);padding:8px 10px;display:flex;flex-direction:column;gap:1px;box-shadow:inset 0 1px #fff}.metric span,.metric small{color:#677580;font-size:11px}.metric b{font-size:19px;line-height:1.2;color:#294b63}.badges{display:flex;gap:5px;flex-wrap:wrap;margin-top:8px}.badge{display:inline-flex;align-items:center;border:1px solid var(--line);padding:3px 6px;background:#f6f8fa;color:#485b69;font-size:11px;font-weight:bold}.badge.good{border-color:var(--ok-line);background:var(--ok-bg);color:#376e3f}.badge.warn{border-color:var(--warn-line);background:var(--warn-bg);color:#7a6220}.notice{border:1px solid var(--warn-line);background:var(--warn-bg);padding:8px 10px;margin:9px 0;box-shadow:inset 0 1px #fff}.notice b{color:#755b16}.notice p{margin:2px 0 0;color:#5f511f}.text-link{font-weight:bold}

.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line-dark);-webkit-overflow-scrolling:touch;box-shadow:inset 0 1px #fff}.section-head + .table-wrap,.section-head + .link-grid{border-top-color:var(--line-dark)}.table-wrap.narrow{max-width:780px}table{border-collapse:collapse;width:100%;min-width:620px;font-size:13px}th,td{text-align:left;vertical-align:top;padding:6px 8px;border-right:1px solid #cdd6dc;border-bottom:1px solid #d9e0e5}th:last-child,td:last-child{border-right:0}tr:last-child td{border-bottom:0}th{background:linear-gradient(#f9fbfc,#dbe4ea);color:#365268;font-size:11px;font-weight:bold;text-transform:uppercase;letter-spacing:.02em;box-shadow:inset 0 1px #fff}tbody tr:nth-child(even) td{background:#f8fafb}tbody tr:hover td{background:#eef5f9}.source-note,.form-note{font-size:11px;color:#697985;margin:5px 2px 0}.portal-table td:first-child{width:34%}

.calc-card{background:#fff;border:1px solid var(--line-dark);padding:9px;box-shadow:inset 0 1px #fff}.form-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:7px;align-items:end}.form-grid label{display:flex;flex-direction:column;gap:3px;color:#435666;font-size:11px;font-weight:bold}.form-grid input,.form-grid select{width:100%;min-width:0;height:33px;border:1px solid #9eafbc;background:#fff;color:var(--text);padding:5px 7px;font:inherit;font-size:13px;outline:none;box-shadow:inset 1px 1px 2px rgba(30,50,65,.08)}.form-grid input:focus,.form-grid select:focus{border-color:#557d9d}.calc-result{display:block;min-height:0;margin-top:7px;border:1px solid #a8bccb;background:#edf5fa;color:#29475c;padding:8px 9px}.calc-result:empty{display:none}.result-main{font-size:15px;font-weight:bold}.result-sub{margin-top:2px;font-size:11px;color:#5b6d7b}.steps{margin:7px 0;padding-left:20px}.steps li{margin:4px 0}

.faq-list{border:1px solid var(--line-dark);background:#fff}.faq-list details{border-bottom:1px solid #d9e0e5}.faq-list details:last-child{border-bottom:0}.faq-list summary{cursor:pointer;padding:7px 9px;font-weight:bold;list-style:none;background:linear-gradient(#fff,#f5f7f9)}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";float:right;color:#356384;font-weight:bold}.faq-list details[open] summary:after{content:"−"}.faq-answer{padding:7px 9px;color:#43535f;border-top:1px solid #e2e7ea}.faq-answer p{margin:0}.source-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-left:1px solid var(--line);border-top:1px solid var(--line)}.source-card{display:flex;flex-direction:column;gap:3px;background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 9px;color:var(--text)}.source-card:hover{background:#f4f8fa;text-decoration:none}.source-card span{color:var(--muted);font-size:11px}.source-card small{color:var(--link);font-weight:bold;font-size:11px}

.page-search{max-width:760px;margin-top:10px}.page-search input{height:36px}.page-search .btn{min-width:86px}.ad-placeholder{display:none}.ad-slot{width:100%;max-width:100%;overflow:hidden;margin:10px 0 0;text-align:center;contain:layout style}.ad-slot-1{min-height:100px}.ad-slot-2,.ad-slot-3{min-height:160px}

.site-footer{background:#dbe4ea;border-top:1px solid var(--line-dark);padding:14px 0 9px;box-shadow:inset 0 1px #fff}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:18px}.footer-grid>div{display:flex;flex-direction:column;gap:4px}.footer-grid p{color:#5a6974;font-size:11px;max-width:480px;margin:5px 0 0}.footer-grid b{font-size:12px;color:#314d62;margin-bottom:2px}.footer-grid a:not(.brand){font-size:11px;color:#405e75}.footer-brand{min-width:0;margin-bottom:2px}.footer-brand .brand-mark{width:31px;height:31px}.footer-brand .brand-copy b{font-size:15px}.footer-bottom{border-top:1px solid #b3c0ca;margin-top:10px;padding-top:7px;display:flex;justify-content:space-between;gap:10px;color:#657580;font-size:10px}

@media(max-width:1220px){.portal-layout{grid-template-columns:190px minmax(0,1fr)}.portal-sidebar-right{display:none}.link-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.link-grid.compact-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.form-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:900px){.header-search{width:min(450px,55vw)}.brand{min-width:215px}.brand-copy small{display:none}.portal-layout{grid-template-columns:minmax(0,1fr)}.portal-sidebar-left{position:static;display:grid;grid-template-columns:1fr 1fr;order:2}.page-shell{order:1}.link-grid.compact-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){body{font-size:13px}.container{width:calc(100% - 14px)}.utility-row nav{display:none}.brand-row{min-height:54px}.brand{min-width:0}.brand-mark{width:34px;height:34px}.brand-copy b{font-size:15px}.header-search{display:none}.menu-btn{display:block;margin-left:auto}.main-nav-wrap{position:relative}.main-nav{display:none;position:absolute;z-index:50;left:7px;right:7px;top:0;background:#345f82;border:1px solid #183e5a;flex-direction:column;box-shadow:inset 0 1px rgba(255,255,255,.2)}.main-nav.open{display:flex}.main-nav a{border:0;border-bottom:1px solid #244c6a;padding:8px 10px}.portal-layout{padding-top:7px;gap:7px}.portal-sidebar-left{grid-template-columns:1fr;gap:7px}.breadcrumbs{height:28px;margin-bottom:6px}.hero{padding:10px}.hero:before{margin:-10px -10px 8px}.hero h1,.hero.compact h1{font-size:21px}.lead{font-size:13px}.section{margin-top:7px}.section-head{padding:5px 7px}.section-head h2,.content-card h2,.prose-card h2{font-size:15px}.link-grid,.link-grid.compact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.link-card{padding:7px}.two-col,.portal-article-grid,.compare-grid{grid-template-columns:1fr;gap:6px}.metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.metric{padding:7px}.metric b{font-size:17px}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.form-grid .btn{width:100%}.source-grid{grid-template-columns:1fr}table{font-size:12px;min-width:570px}th,td{padding:5px 6px}.footer-grid{grid-template-columns:1fr 1fr;gap:12px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:2px}.ad-slot-1{min-height:90px}.ad-slot-2,.ad-slot-3{min-height:140px}}
@media(max-width:430px){.link-grid,.link-grid.compact-grid{grid-template-columns:1fr}.metrics{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr 1fr}.form-grid .btn{grid-column:1/-1}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.portal-sidebar-left{display:none}}