:root{
  --bg:#f4f6f9;
  --primary:#0f172a;
  --accent:#2563eb;
  --text:#1f2933;
  --muted:#6b7280;
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu;
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
}

header{
  background:var(--primary);
  color:#fff;
}

.header-wrap{
  max-width:1200px;
  margin:auto;
  padding:20px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:center;
}

header h1{
  font-size:22px;
  margin:0;
}

nav{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}

nav a{
  color:#fff;
  text-decoration:none;
  font-weight:600;
}

nav a:hover{
  color:#93c5fd;
}

main{
  max-width:1200px;
  margin:auto;
  background:#fff;
  padding:40px 25px;
}

h2{
  margin-top:50px;
  font-size:26px;
  color:#020617;
}

h3{
  margin-top:30px;
  font-size:20px;
}

p{
  margin:15px 0;
}

ul,ol{
  padding-left:22px;
}

li{
  margin:10px 0;
}

a{
  color:var(--accent);
}

a:hover{
  text-decoration:underline;
}

footer{
  background:#020617;
  color:#cbd5f5;
  text-align:center;
  padding:25px 15px;
  font-size:14px;
  margin-top:60px;
}

/* RESPONSIVO */
@media (max-width:768px){
  header h1{
    font-size:18px;
  }
  main{
    padding:25px 16px;
  }
  h2{
    font-size:22px;
  }
}