*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:#0f172a;background:#f1f5f9;line-height:1.65}
a{color:#1d4ed8}
header{background:#0f172a;color:#fff;padding:14px 16px}
header .in{max-width:900px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px}
header .logo{font-weight:700;font-size:18px;color:#fff;text-decoration:none}
nav a{color:#cbd5e1;text-decoration:none;font-size:14px;margin-right:12px}
nav a:hover{color:#fff}
main{max-width:900px;margin:0 auto;padding:18px 16px 40px}
.card{background:#fff;border-radius:14px;padding:20px;margin:14px 0}
h1{font-size:26px;margin:0 0 10px}
h2{font-size:20px;margin:0 0 8px}
h3{font-size:16px;margin:16px 0 4px}
p,li{font-size:15px}
.btn{display:inline-block;background:#1d4ed8;color:#fff;text-decoration:none;padding:11px 20px;border-radius:10px;font-weight:700;margin-top:6px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.mini{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:14px}
.note{background:#fff7ed;border-left:4px solid #f59e0b;padding:10px 14px;border-radius:8px;font-size:14px}
footer{background:#0f172a;color:#94a3b8;padding:20px 16px;font-size:13px;text-align:center}
footer a{color:#cbd5e1}