:root{
  --bg:#f7fafc; --paper:#ffffff; --ink:#1a202c; --muted:#4a5568; --line:#e2e8f0;
  --accent:#2563eb; --accent-2:#10b981;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font:16px/1.65 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,"Noto Sans",Helvetica,Arial}
.container{max-width:980px;margin:0 auto;padding:28px 20px}
.header{background:#eef2ff;border-bottom:1px solid var(--line)}
.brand{display:flex;gap:14px;align-items:center}
.logo{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#93c5fd,#a7f3d0);box-shadow:0 8px 24px rgba(16,185,129,.25)}
h1{font-size:clamp(28px,4vw,42px);margin:6px 0 0}
.sub{color:var(--muted)}
nav.nav{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 0}
.nav a{padding:10px 14px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:#111827;background:white}
.nav a:hover{border-color:#cbd5e1;transform:translateY(-1px)}
main .hero{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:22px;margin-top:18px;box-shadow:0 8px 30px rgba(0,0,0,.05)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 8px 30px rgba(0,0,0,.05);margin:16px 0}
.grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:860px){ .grid{grid-template-columns:1.1fr .9fr} }
section h2{margin-top:0}
.lead{font-size:1.125rem;color:#334155}
blockquote{border-left:4px solid #cbd5e1;margin:0;padding:6px 12px;color:#334155;background:#f8fafc;border-radius:8px}
footer{margin:28px 0;color:var(--muted);font-size:14px}
.small{font-size:.925rem;color:#475569}
hr{border:none;border-top:1px solid var(--line);margin:24px 0}
a.cta{display:inline-block;margin-top:10px;padding:10px 14px;border-radius:12px;background:linear-gradient(145deg,var(--accent),var(--accent-2));color:white;text-decoration:none}