:root{
  --ink:#101828;
  --muted:#667085;
  --paper:#ffffff;
  --soft:#f6f8fc;
  --blue-soft:#eef3ff;
  --line:#e3e8f2;
  --brand:#3155a6;
  --brand-dark:#213f86;
  --accent:#3155a6;
  --top:#111111;
  --max:1180px;
  --main-max:1180px;
  --radius:18px;
  --shadow:0 18px 45px rgba(20,39,83,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6}
.wrap,.main-wrap{width:min(calc(100% - 36px),var(--main-max));margin-inline:auto}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:none;color:var(--brand-dark)}

/* Shared PrintLink header */
.site-header{background:#fff;position:relative;z-index:60}
.utility-bar{background:var(--top);color:#fff;font-size:14px}
.utility-inner{min-height:40px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.utility-bar a{color:#fff}
.primary-header{background:#fff;border-bottom:1px solid #f0f2f6}
.primary-inner{min-height:114px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.printlink-logo{display:inline-flex;align-items:center;font-size:2rem;font-weight:900;letter-spacing:-.08em;color:#050505;line-height:1}
.printlink-logo:hover{color:#050505}
.primary-header .printlink-logo img{width:220px;height:84px;object-fit:contain;background:#fff;display:block}
.logo-print{color:#050505}.logo-link{color:var(--brand);margin-left:.08em}
.primary-nav{display:flex;align-items:center;gap:18px}
.primary-nav a{font-size:1rem;font-weight:800;color:#20283a}
.primary-nav a:hover{color:var(--brand)}
.call-button,.button{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff!important;font-weight:800;padding:12px 18px;border-radius:999px;box-shadow:0 9px 22px rgba(49,85,166,.22);border:1px solid var(--brand)}
.call-button:hover,.button:hover{background:var(--brand-dark);color:#fff!important}
.primary-toggle,.nav-toggle{display:none}

/* Secondary sign navigation */
.knowledge-nav-shell{background:#fff;border-top:1px solid #f4f5f8;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:55;box-shadow:0 4px 16px rgba(16,24,40,.03)}
.knowledge-inner{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.knowledge-title{font-size:.76rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:#111827;white-space:nowrap}
.knowledge-nav{display:flex;align-items:stretch;gap:4px;min-height:54px}
.knowledge-nav a{display:flex;align-items:center;padding:0 13px;font-size:.79rem;font-weight:800;color:#475467;border-bottom:3px solid transparent}
.knowledge-nav a:hover,.knowledge-nav a.active{color:var(--brand);border-bottom-color:var(--brand)}

/* Typography and buttons */
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.035em}
h1{font-size:clamp(2.55rem,5.3vw,4.75rem);line-height:1.01;margin:.08em 0 .3em}
h2{font-size:clamp(1.7rem,3vw,2.45rem);line-height:1.14;margin:0 0 16px}
h3{line-height:1.22}
p{margin-top:0}
.eyebrow{display:inline-block;text-transform:uppercase;letter-spacing:.1em;font-weight:900;font-size:.68rem;color:#111827;background:#e9efff;border-radius:999px;padding:5px 10px;margin:0 0 13px}
.lead{font-size:1.08rem;max-width:760px;color:#5b6474}
.button{padding:12px 18px}
.button.secondary{background:#fff;color:var(--brand)!important;border-color:#cfd9ef;box-shadow:none}
.button.secondary:hover{background:#f4f7ff}

/* Page heroes */
.hero,.article-hero{background:linear-gradient(110deg,#f4f7ff 0%,#fff 55%,#edf3ff 100%);color:var(--ink)}
.hero{padding:68px 0}
.article-hero{padding:48px 0 50px;border-bottom:1px solid #edf0f6}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:54px;align-items:center}
.hero-card{background:#fff;color:var(--ink);border:1px solid #eef1f6;border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.hero-card h2{font-size:1.55rem}
.hero-card ul{padding-left:20px;margin-bottom:18px}
.hero-card li{margin-bottom:7px}

/* General sections/cards */
.section{padding:64px 0}
.section.soft{background:var(--soft)}
.section-head{max-width:760px;margin-bottom:28px}
.section-head>p:last-child{color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 10px 25px rgba(16,24,40,.035);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-2px);box-shadow:0 16px 35px rgba(20,39,83,.08);border-color:#ccd7ee}
.card h3{margin:0 0 10px;font-size:1.08rem}
.card p{color:var(--muted);font-size:.93rem}
.card .eyebrow{font-size:.61rem;margin-bottom:12px}
.card-link{font-weight:800;font-size:.9rem}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feature{padding:22px;background:#fff;border:1px solid var(--line);border-radius:15px}
.feature h3{margin-top:0;font-size:1rem}
.feature p{color:var(--muted);font-size:.9rem;margin-bottom:0}
.directory{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.directory a{display:flex;justify-content:space-between;gap:20px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff;font-weight:800;color:var(--ink)}
.directory a:hover{border-color:#c7d3ed;box-shadow:0 10px 25px rgba(20,39,83,.06)}
.directory span{font-weight:400;color:var(--muted)}

/* Articles */
.breadcrumbs{display:flex;gap:8px;font-size:.8rem;margin-bottom:22px;flex-wrap:wrap;color:#7b8494}
.breadcrumbs a{color:var(--brand);font-weight:700}
.article-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:48px;align-items:start;padding:54px 0}
.toc{position:sticky;top:78px;border:1px solid var(--line);border-radius:15px;padding:18px;background:#fff;box-shadow:0 8px 25px rgba(16,24,40,.04)}
.toc strong,.toc a{display:block}
.toc strong{font-size:.78rem;text-transform:uppercase;letter-spacing:.07em;margin-bottom:8px}
.toc a{padding:5px 0;color:#667085;font-size:.86rem}
.toc a:hover{color:var(--brand)}
.article-content{min-width:0}
.article-content section{scroll-margin-top:80px;margin-bottom:46px}
.article-content p,.article-content li{font-size:1rem;color:#46505f}
.article-content h2{padding-bottom:9px;border-bottom:1px solid #edf0f5}
.callout,.warning{padding:20px;border-radius:13px;margin:24px 0}
.callout{background:#f1f5ff;border-left:5px solid var(--brand)}
.warning{background:#fff8e8;border-left:5px solid #d9a128}
.fact-grid{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.fact-grid div{padding:18px;border-bottom:1px solid var(--line)}
.fact-grid div:nth-child(odd){border-right:1px solid var(--line)}
.fact-grid span,.fact-grid strong{display:block}
.fact-grid span{font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:900}
.fact-grid strong{font-size:.95rem;margin-top:3px}
.check-list{list-style:none;padding:0}
.check-list li{margin-bottom:8px}
.check-list li:before{content:'✓';color:var(--brand);font-weight:900;margin-right:10px}
.tag-list{display:flex;flex-wrap:wrap;gap:9px}
.tag-list span{background:#f5f7fb;border:1px solid var(--line);border-radius:999px;padding:7px 12px;font-size:.88rem}
.faq-list details{border:1px solid var(--line);border-radius:12px;padding:0 16px;margin-bottom:10px;background:#fff}
.faq-list summary{font-weight:800;cursor:pointer;padding:15px 0;color:var(--ink)}
.faq-list details p{padding:0 0 15px;margin:0}
.cta{background:linear-gradient(135deg,#253f80,#3155a6);color:#fff;border-radius:20px;padding:32px!important;box-shadow:var(--shadow)}
.cta h2,.cta p{color:#fff}.cta .eyebrow{background:#ffffff1f;color:#fff}

/* Comparison guides */
.recommendation{background:#f1f5ff;border:1px solid #dbe4fa;border-left:6px solid var(--brand);border-radius:15px;padding:26px}
.recommendation h2{margin-bottom:10px}.recommendation .eyebrow{color:#263e7c}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:#fff}
.comparison-table{width:100%;border-collapse:collapse;min-width:650px}
.comparison-table th,.comparison-table td{padding:15px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.comparison-table thead th{background:#253f80;color:#fff}
.comparison-table tbody th{background:#f7f8fb;width:22%}
.comparison-table tr:last-child th,.comparison-table tr:last-child td{border-bottom:0}
.two-column{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.choice-card{border:1px solid var(--line);border-radius:15px;padding:22px;background:#fff}
.choice-card h3{margin-top:0}
.article-content h4{margin-bottom:8px}.article-content h4+ul{margin-top:0}

/* Footer */
.site-footer{background:#111827;color:#d7deea;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.4fr .7fr .85fr 1fr;gap:34px}
.footer-logo{font-size:1.7rem;margin-bottom:18px}.footer-logo .logo-print{color:#fff}
.site-footer h3{color:#fff;font-size:.9rem;letter-spacing:0}
.site-footer p{font-size:.85rem;color:#b8c2d0}
.site-footer a{color:#fff}.site-footer a:hover{color:#bfcdf0}
.copyright{border-top:1px solid #ffffff20;margin-top:34px;padding-top:18px;font-size:.75rem;color:#98a4b5}

@media(max-width:900px){
  .primary-toggle,.nav-toggle{display:block;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 13px;font-weight:800;color:var(--ink)}
  .primary-nav{display:none;position:absolute;left:0;right:0;top:118px;background:#fff;padding:20px;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line);box-shadow:0 14px 25px rgba(16,24,40,.08)}
  .primary-nav.open{display:flex}
  .knowledge-nav{display:none;position:absolute;left:0;right:0;top:54px;background:#fff;padding:15px 18px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line);box-shadow:0 14px 25px rgba(16,24,40,.08)}
  .knowledge-nav.open{display:flex}
  .knowledge-nav a{min-height:42px;border-bottom:0;border-left:3px solid transparent;padding:0 12px}
  .knowledge-nav a.active{border-left-color:var(--brand)}
  .hero-grid,.article-layout{grid-template-columns:1fr}
  .toc{position:static;display:none}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:620px){
  .utility-inner{justify-content:center;text-align:center}.utility-inner span:first-child{display:none}
  .primary-inner{min-height:72px}.printlink-logo{font-size:1.7rem}
  .knowledge-title{font-size:.68rem}.knowledge-inner{min-height:50px}
  .knowledge-nav{top:50px}
  .primary-nav{top:104px}
  .hero{padding:48px 0}.article-hero{padding:36px 0}
  .card-grid,.feature-grid,.directory,.footer-grid,.fact-grid,.two-column{grid-template-columns:1fr}
  .fact-grid div:nth-child(odd){border-right:0}
  .article-layout{padding:38px 0}
  .card{padding:20px}
  h1{font-size:2.55rem}
}

/* Sign buying guides */
.article-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;color:#667085;font-size:.82rem;font-weight:800}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta span:before{content:'•';color:var(--brand)}
.article-intro{font-size:1.16rem!important;line-height:1.75;color:#344054!important}
.printlink-insight{border:1px solid #cfdaf2;background:linear-gradient(135deg,#f6f8ff,#eef3ff);border-radius:16px;padding:24px;margin:26px 0}
.printlink-insight>span{display:block;text-transform:uppercase;letter-spacing:.09em;font-size:.72rem;font-weight:900;color:var(--brand);margin-bottom:8px}
.printlink-insight p{margin:0;color:#344054!important;font-weight:600}
.decision-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.decision-grid div{display:flex;gap:11px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px;font-weight:700;color:#344054}
.decision-grid span{display:grid;place-items:center;flex:0 0 24px;height:24px;border-radius:50%;background:#eaf0ff;color:var(--brand);font-weight:900}
.warning-list{list-style:none;padding:0;display:grid;gap:10px}
.warning-list li{background:#fff8e8;border:1px solid #f2dfad;border-radius:12px;padding:14px 16px;color:#5c4920}
.warning-list li:before{content:'!';display:inline-grid;place-items:center;width:22px;height:22px;margin-right:10px;border-radius:50%;background:#d9a128;color:#fff;font-weight:900}
.related-links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.related-links a{display:flex;justify-content:space-between;gap:15px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:16px;background:#fff;font-weight:800;color:var(--ink)}
.related-links a:hover{border-color:#c7d3ed;box-shadow:0 10px 25px rgba(20,39,83,.06)}
.featured-guide{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:24px;padding:30px;border:1px solid #d7e0f4;border-radius:18px;background:linear-gradient(115deg,#f7f9ff,#fff);box-shadow:0 12px 30px rgba(20,39,83,.05)}
.featured-guide h2{margin-bottom:8px}.featured-guide p{max-width:740px;color:var(--muted)}
.guide-time{font-size:.72rem!important;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:var(--brand)!important;margin-bottom:10px}
.guide-card{display:flex;flex-direction:column}.guide-card .card-link{margin-top:auto;padding-top:12px}
@media(max-width:700px){.decision-grid,.related-links{grid-template-columns:1fr}.featured-guide{align-items:flex-start;flex-direction:column}}