:root{
  --primary:#1e90ff; --primary2:#0c6cd9; --accent:#0c4a9e;
  --bg:#F8FAFC; --bg2:#F1F5F9; --card:#ffffff;
  --text:#0F172A; --muted:#475569; --dim:#94A3B8; --border:#E2E8F0;
  --ok:#16a34a;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--primary2);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.wrap{max-width:780px;margin:0 auto;padding:0 20px}
/* Header */
.bnav{position:sticky;top:0;z-index:50;background:rgba(248,250,252,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.bnav-in{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:12px;position:relative}
.bnav img{height:28px;width:auto;display:block}
.navtog{display:none}
.bnav .links{display:flex;align-items:center;gap:18px;margin-left:auto;font-weight:600;font-size:14px}
.bnav .links a{color:var(--text)}
.hamb{display:none;font-size:26px;line-height:1;cursor:pointer;color:var(--text);-webkit-user-select:none;user-select:none;padding:2px 8px}
.btn{display:inline-block;border-radius:10px;font-weight:800;cursor:pointer;border:none;font-family:inherit;text-decoration:none;transition:.15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;padding:10px 18px;box-shadow:0 8px 20px rgba(30,144,255,.25)}
.btn-ghost{background:var(--card);border:1px solid var(--border);color:var(--text);padding:10px 18px}
@media(max-width:760px){
  .bnav .links{position:absolute;top:100%;left:0;right:0;margin:0;flex-direction:column;align-items:stretch;gap:0;background:var(--card);border-bottom:1px solid var(--border);box-shadow:0 14px 28px rgba(15,23,42,.1);padding:6px 0;display:none}
  .navtog:checked ~ .links{display:flex}
  .bnav .links a{padding:13px 22px;font-size:15px}
  .bnav .links a:not(.btn){border-top:1px solid var(--border)}
  .bnav .links a.btn{margin:10px 22px}
  .cta-always{margin-left:auto;padding:8px 14px !important;font-size:14px}
  .hamb{display:block}
}
/* Article */
article{padding:34px 0 10px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:14px}
.kicker{display:inline-block;background:rgba(30,144,255,.1);color:var(--primary2);font-weight:800;font-size:12px;letter-spacing:.4px;text-transform:uppercase;padding:5px 12px;border-radius:99px;margin-bottom:14px}
h1{font-size:34px;line-height:1.2;font-weight:900;margin:6px 0 12px;letter-spacing:-.5px}
.meta{color:var(--dim);font-size:13px;margin-bottom:26px}
article h2{font-size:24px;font-weight:800;margin:34px 0 12px;letter-spacing:-.3px}
article h3{font-size:18px;font-weight:800;margin:24px 0 8px}
article p,article li{font-size:17px;color:#1e293b}
article ul,article ol{padding-left:22px}
article li{margin-bottom:7px}
.lead{font-size:19px;color:var(--muted)}
.tip{background:#EFF8FF;border:1px solid #bae0ff;border-left:4px solid var(--primary);border-radius:10px;padding:14px 16px;margin:18px 0;font-size:16px}
.tip b{color:var(--primary2)}
table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}
th{background:var(--bg2);font-weight:800}
/* CTA box */
.cta-box{background:linear-gradient(135deg,#0c1f3d,#0c4a9e);color:#fff;border-radius:18px;padding:28px 24px;margin:34px 0;text-align:center}
.cta-box h3{color:#fff;font-size:22px;margin:0 0 8px}
.cta-box p{color:#cfe3ff;margin:0 0 16px;font-size:16px}
.cta-box .btn-primary{background:#fff;color:var(--primary2)}
/* FAQ */
.faq{margin:14px 0}
.faq details{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:4px 16px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700;padding:12px 0;font-size:16px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--primary);font-weight:900}
.faq details[open] summary::after{content:"–"}
.faq p{margin:0 0 14px;font-size:16px;color:var(--muted)}
/* Blog index cards */
.hero-b{padding:48px 0 10px;text-align:center}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;padding:24px 0 40px}
.pcard{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:22px;display:flex;flex-direction:column;transition:.15s}
.pcard:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(15,23,42,.08);text-decoration:none}
.pcard .k{font-size:12px;font-weight:800;color:var(--primary2);text-transform:uppercase;letter-spacing:.4px}
.pcard h2{font-size:20px;margin:8px 0 8px;color:var(--text)}
.pcard p{font-size:15px;color:var(--muted);margin:0 0 14px;flex:1}
.pcard .more{font-weight:800;color:var(--primary2);font-size:14px}
/* Footer */
footer{border-top:1px solid var(--border);padding:28px 0;text-align:center;color:var(--dim);font-size:13px;margin-top:30px}
footer a{color:var(--muted)}