:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --blue:#1e3a8a;
  --green:#16a34a;
  --border:#e2e8f0;
  --shadow: 0 10px 25px rgba(2,6,23,.08);
  --radius:16px;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family: Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.5;
}

a{color:inherit; text-decoration:none}

.container{
  max-width:1100px;
  margin:0 auto;
  padding:0 18px;
}

/* NAV */
.nav{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--border);
}

.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:64px;
}

.brand{
  display:flex;
  gap:10px;
  align-items:center;
  font-weight:800;
}

.logo{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--blue);
  display:flex;
  align-items:center;
  justify-content:center;
  color:white;
  font-weight:800;
}

.links{
  display:flex;
  gap:18px;
  align-items:center;
  font-weight:600;
  color:var(--muted);
}

.links a{
  padding:8px 10px;
  border-radius:10px;
}

.links a:hover{
  background:#eef2ff;
  color:var(--blue);
}

.btn{
  display:inline-block;
  padding:10px 14px;
  border-radius:12px;
  font-weight:700;
  border:1px solid var(--border);
  background:white;
}

.btn-primary{
  background:var(--green);
  color:white;
  border:none;
}

.btn-primary:hover{
  filter:brightness(.95);
}

/* HERO */
.hero{
  padding:70px 0 40px;
}

.hero-card{
  background:linear-gradient(135deg, #1e3a8a, #1d4ed8);
  color:white;
  border-radius:var(--radius);
  padding:38px;
  box-shadow:var(--shadow);
}

.hero-card h1{
  margin:0 0 10px;
  font-size:44px;
  line-height:1.1;
}

.hero-card p{
  margin:0 0 18px;
  color:rgba(255,255,255,.9);
  font-size:16px;
}

.section{
  padding:40px 0;
}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:0 8px 18px rgba(2,6,23,.05);
}

.footer{
  margin-top:40px;
  border-top:1px solid var(--border);
  padding:22px 0;
  color:var(--muted);
  font-size:14px;
}