:root{--ink:#172033;--muted:#5d6575;--line:#e6e9ef;--bg:#f7f9fc;--card:#fff;--accent:#5b47e8;--accent2:#0e8f82;--dark:#101522;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:#4338ca;text-underline-offset:3px}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:12px;z-index:99;background:#fff;padding:8px 12px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:70px}.brand{display:flex;align-items:center;gap:9px;font-weight:850;color:var(--ink);text-decoration:none;font-size:20px}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-size:12px;letter-spacing:.03em}
.primary-nav{display:flex;gap:19px;margin-left:auto}.primary-nav a{text-decoration:none;color:#343a49;font-weight:650;font-size:14px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:10px;text-decoration:none;font-weight:800;border:0;cursor:pointer}
.btn-primary,.btn-header{background:var(--accent);color:#fff;box-shadow:0 8px 24px rgba(91,71,232,.18)}.btn-header{padding:10px 14px;font-size:14px}.nav-toggle{display:none}
.hero{padding:78px 0 58px;background:radial-gradient(circle at 80% 10%,#e6e2ff 0,transparent 34%),linear-gradient(180deg,#fbfcff,#f4f7fb)}
.hero-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:48px;align-items:center}.eyebrow{font-size:12px;font-weight:850;letter-spacing:.12em;text-transform:uppercase;color:var(--accent2)}
h1{font-size:clamp(38px,6vw,68px);line-height:1.02;letter-spacing:-.04em;margin:.25em 0}.hero p{font-size:20px;color:var(--muted);max-width:720px}.hero-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 24px 70px rgba(20,30,55,.10)}
.hero-card ol{padding-left:20px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn-secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}
.section{padding:64px 0}.section.alt{background:var(--bg)}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:24px}.section h2{font-size:32px;letter-spacing:-.025em;margin:0}.section-head p{max-width:640px;color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.topic-card,.guide-card{display:block;padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff;text-decoration:none;color:var(--ink);transition:.15s transform,.15s box-shadow}.topic-card:hover,.guide-card:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(20,30,55,.08)}
.topic-card span,.guide-card span,.related-card span{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--accent2);font-weight:800}.topic-card h3,.guide-card h3{margin:7px 0 8px;font-size:20px}.topic-card p,.guide-card p{margin:0;color:var(--muted)}
.breadcrumbs{display:flex;gap:9px;flex-wrap:wrap;font-size:13px;color:var(--muted);padding:22px 0}.article-layout{display:grid;grid-template-columns:minmax(0,780px) 320px;gap:52px;align-items:start}.article{padding-bottom:70px}.article-head{padding:28px 0 16px}.article-head h1{font-size:clamp(38px,5vw,58px)}.dek{font-size:20px;color:var(--muted);max-width:760px}.byline{font-size:13px;color:var(--muted)}
.affiliate-note{border:1px solid #ddd9ff;background:#f6f4ff;padding:13px 16px;border-radius:10px;font-size:14px;margin:18px 0 28px}.lead{font-size:20px;line-height:1.65}.article h2{font-size:28px;letter-spacing:-.02em;margin-top:42px}.article p,.article li{font-size:17px}.checklist{padding-left:0;list-style:none}.checklist li{position:relative;padding:11px 0 11px 32px;border-bottom:1px solid var(--line)}.checklist li:before{content:"✓";position:absolute;left:3px;color:var(--accent2);font-weight:900}.steps li{padding:7px 0}
.cta-box{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;background:var(--dark);color:#fff;padding:26px;border-radius:18px;margin:34px 0}.cta-box h2{margin:4px 0 6px;color:#fff}.cta-box p{margin:0;color:#cbd2e0}.cta-box small{color:#8ee0d6;font-weight:850;letter-spacing:.09em}.soft-cta{border-left:4px solid var(--accent);background:#f7f6ff;padding:18px 22px;margin:32px 0}.soft-cta p{margin:4px 0}
.sidebar{padding-top:28px}.sidebar-card{border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:18px}.sidebar-card.sticky{position:sticky;top:92px;background:linear-gradient(180deg,#151a29,#22283b);color:#fff}.sidebar-card h2{font-size:22px;line-height:1.2;margin:6px 0 10px}.sidebar-card p{font-size:14px;color:#d1d6e1}.sidebar-card small{color:#82dfd3;font-weight:900;letter-spacing:.08em}.sidebar-card .btn{width:100%;margin:8px 0}.sidebar-card .text-link{display:block;color:#c7c2ff;margin-top:10px;font-size:14px}.sidebar-card:not(.sticky) a{display:block;padding:6px 0}
.next-step{padding:22px;border:1px solid var(--line);border-radius:15px;background:var(--bg)}.next-step h2{margin-top:0}.source-note{border-top:1px solid var(--line);margin-top:40px;padding-top:4px}.source-note li{font-size:14px}.related{border-top:1px solid var(--line);margin-top:40px}.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.related-card{padding:16px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink)}.related-card strong{display:block;line-height:1.35;margin-top:4px}
.hub-hero{padding:52px 0 35px;background:var(--bg);border-bottom:1px solid var(--line)}.hub-hero h1{font-size:52px}.hub-hero p{font-size:19px;color:var(--muted);max-width:760px}.hub-list{padding:48px 0}.hub-list .guide-card{margin-bottom:14px}.wave{display:inline-block;background:#eeeafe;color:#4d3ed0;padding:3px 8px;border-radius:999px;font-size:11px;font-weight:850;margin-left:8px}
.legal{max-width:800px;padding:50px 0 80px}.legal h1{font-size:48px}.legal h2{font-size:26px;margin-top:34px}
.site-footer{background:var(--dark);color:#d2d7e2;padding:46px 0 28px}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.footer-brand{font-size:21px;font-weight:850;color:#fff}.footer-grid nav{display:grid;grid-template-columns:1fr 1fr;gap:8px}.footer-grid a{color:#e5e8ef}.footer-small{border-top:1px solid #303748;margin-top:28px;padding-top:20px;font-size:13px;color:#9ca6b8}
.mobile-cta{display:none}
@media(max-width:900px){.article-layout,.hero-grid{grid-template-columns:1fr}.sidebar{display:none}.card-grid{grid-template-columns:1fr 1fr}.primary-nav{display:none;position:absolute;left:16px;right:16px;top:64px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;box-shadow:0 16px 40px rgba(20,30,55,.12)}.primary-nav.open{display:grid}.nav-toggle{display:block;margin-left:auto;background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 10px}.btn-header{display:none}.mobile-cta{display:block;position:fixed;left:0;right:0;bottom:0;z-index:60;padding:8px 12px;background:rgba(255,255,255,.97);border-top:1px solid var(--line)}.mobile-cta .btn{width:100%;padding:11px}.site-footer{padding-bottom:88px}}
@media(max-width:620px){.wrap{width:min(100% - 24px,var(--max))}.hero{padding-top:50px}.card-grid,.related-grid,.footer-grid{grid-template-columns:1fr}.cta-box{grid-template-columns:1fr}.cta-box .btn{width:100%}.section{padding:46px 0}.article-head h1{font-size:40px}.hub-hero h1{font-size:42px}}