:root{--ink:#172033;--muted:#667085;--paper:#fff;--soft:#f7f8fb;--line:#e5e7eb;--accent:#f97316;--accent2:#fff3e8;--blue:#2563eb;--max:1120px}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);line-height:1.68}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:var(--max);margin:auto;padding:0 24px}
header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}.nav{height:72px;display:flex;align-items:center;gap:26px}.brand{font-weight:850;color:var(--ink);font-size:21px;letter-spacing:-.4px}.brand b{color:var(--accent)}nav{margin-left:auto;display:flex;gap:20px;align-items:center}nav a{color:#344054;font-size:14px;font-weight:650}.navcta,.btn{display:inline-block;background:var(--accent);color:#fff!important;padding:11px 17px;border-radius:9px;font-weight:750;text-decoration:none!important}
.hero{padding:76px 0 54px;background:linear-gradient(180deg,#fff8f2 0,#fff 100%)}.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:center}
.eyebrow{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:#c2410c}.hero h1,h1{font-size:clamp(38px,5vw,62px);line-height:1.03;letter-spacing:-2px;margin:.18em 0}.hero p{font-size:20px;color:#475467;max-width:720px}
.labcard{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 14px 35px rgba(16,24,40,.08)}.labcard h3{margin-top:0}.score{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:11px 0;font-size:14px}
section{padding:54px 0}.soft{background:var(--soft)}h2{font-size:34px;line-height:1.15;letter-spacing:-.8px;margin:0 0 12px}h3{line-height:1.25}.lead{color:var(--muted);max-width:760px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{border:1px solid var(--line);border-radius:14px;padding:23px;background:#fff}.card p{color:var(--muted);font-size:15px}.card h3{margin:0 0 8px}.tag{display:inline-block;font-size:12px;font-weight:800;color:#9a3412;background:var(--accent2);padding:5px 9px;border-radius:99px}
.article{max-width:800px;margin:auto;padding:58px 24px}.article h1{font-size:48px}.article h2{margin-top:44px}.article h3{margin-top:30px}.article p,.article li{font-size:17px;color:#344054}.meta{color:var(--muted);font-size:14px}.notice{border-left:4px solid var(--accent);background:var(--accent2);padding:16px 18px;border-radius:8px;margin:26px 0}.cta{background:#172033;color:#fff;border-radius:16px;padding:28px;margin:34px 0}.cta p{color:#d0d5dd}.cta .btn{margin-top:4px}.toc{background:var(--soft);padding:18px 22px;border-radius:12px}.toc a{display:block;margin:6px 0}.comparison{width:100%;border-collapse:collapse;margin:24px 0}.comparison th,.comparison td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.comparison th{background:var(--soft)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:18px}.related{border-top:1px solid var(--line);margin-top:48px;padding-top:26px}.related a{display:block;margin:8px 0}
footer{background:#101828;color:#d0d5dd;padding:45px 0;margin-top:50px}footer a{color:#fff}.footergrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
@media(max-width:800px){nav a:not(.navcta){display:none}.hero-grid,.grid3,.footergrid{grid-template-columns:1fr}.hero{padding-top:48px}.article h1{font-size:39px}.labcard{display:none}}

/* Expanded sitewide navigation and conversion system */
.mobile-actions{display:none;margin-left:auto;align-items:center;gap:8px}.hamburger{display:none;border:1px solid var(--line);background:#fff;border-radius:9px;width:42px;height:42px;align-items:center;justify-content:center;cursor:pointer;padding:9px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff}.mobile-menu.open{display:block}.mobile-menu a{display:block;padding:13px 24px;border-bottom:1px solid var(--line);color:#344054;font-weight:650}
.page-shell{max-width:1120px;margin:auto;padding:58px 24px;display:grid;grid-template-columns:minmax(0,800px) 260px;gap:46px}.page-shell .article{padding:0;max-width:none;margin:0}.sidebar{align-self:start;border:1px solid var(--line);border-radius:14px;padding:20px;background:#fff}.sidebar h3{margin-top:0}.sidebar a:not(.btn){display:block;margin:9px 0;font-size:14px}.sidebar .btn{display:block;text-align:center;margin-top:15px}.sidebar small{display:block;color:var(--muted);margin-top:10px;line-height:1.45}

.sitemap-list{columns:2;column-gap:40px}.sitemap-list li{break-inside:avoid;margin:8px 0}
@media(max-width:800px){
 header{position:sticky;top:0}.nav{gap:10px}.nav>nav{display:none}.mobile-actions{display:flex}.mobile-actions .navcta{padding:9px 11px;font-size:13px;white-space:nowrap}.hamburger{display:flex;flex-direction:column}
 .brand{font-size:17px;margin-right:auto}.page-shell{display:block;padding:38px 20px}.sidebar{margin-top:38px}.sitemap-list{columns:1}
}
@media(max-width:390px){.brand{font-size:15px}.mobile-actions{gap:6px}.mobile-actions .navcta{font-size:12px;padding:8px 9px}.hamburger{width:39px;height:39px}}

.hamburger{position:relative}




@media(max-width:390px){
  .hamburger::before,.hamburger::after,
}

.hamburger{
  border:1px solid var(--line);
  background:#fff;
  border-radius:9px;
  width:42px;
  height:42px;
  padding:0;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  color:#172033;
  flex:0 0 42px;
}
.hamburger svg{
  display:block;
  width:22px;
  height:22px;
  stroke:currentColor;
  fill:none;
  stroke-width:2.25;
  stroke-linecap:round;
}
@media(max-width:390px){
  .hamburger{width:39px;height:39px;flex-basis:39px}
  .hamburger svg{width:21px;height:21px}
}

.offer-popup[hidden]{display:none!important}.offer-popup{position:fixed;inset:0;z-index:1000;background:rgba(16,24,40,.58);display:flex;align-items:center;justify-content:center;padding:20px}.offer-popup-card{position:relative;width:min(520px,100%);background:#fff;border-radius:18px;padding:30px;box-shadow:0 24px 70px rgba(16,24,40,.25)}.offer-popup-card h2{font-size:28px;margin:0 34px 10px 0}.offer-popup-card p{color:var(--muted)}.offer-popup-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.offer-popup-stay{border:1px solid var(--line);background:#fff;color:var(--ink);padding:11px 17px;border-radius:9px;font-weight:750;cursor:pointer}.offer-popup-close{position:absolute;right:14px;top:12px;border:0;background:transparent;color:#475467;font-size:28px;line-height:1;cursor:pointer;padding:6px 9px}.offer-popup-close:hover{color:var(--ink)}@media(max-width:520px){.offer-popup-card{padding:24px}.offer-popup-actions{flex-direction:column}.offer-popup-actions .btn,.offer-popup-stay{width:100%;text-align:center}}

.takeaways{background:#f8fafc;border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:25px 0}.takeaways h2{font-size:21px;margin:0 0 10px}.takeaways ul{margin:0;padding-left:20px}.takeaways li{margin:6px 0}
.freshness{font-size:14px;color:#475467;border:1px solid #dbeafe;background:#eff6ff;border-radius:10px;padding:12px 15px;margin:22px 0}
.cluster-nav{border:1px solid var(--line);border-radius:14px;padding:20px;margin:26px 0;background:#fff}.cluster-nav h2{font-size:22px;margin-top:0}.cluster-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px}.cluster-links a{font-size:14px}
.faq{margin-top:44px}.faq details{border-top:1px solid var(--line);padding:14px 0}.faq summary{font-weight:750;cursor:pointer}.faq details p{margin:8px 0 0}
.next-step{border:1px solid #fed7aa;background:#fff7ed;border-radius:14px;padding:22px;margin:32px 0}.next-step h2{font-size:23px;margin-top:0}
.knowledge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.knowledge-card{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fff}.knowledge-card h3{margin-top:0}.knowledge-card a{display:block;margin:7px 0}
.hero-path{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.hero-path span{background:#fff;border:1px solid var(--line);border-radius:99px;padding:7px 11px;font-size:13px;font-weight:700}
@media(max-width:800px){.cluster-links,.knowledge-grid{grid-template-columns:1fr}}