body {
font-family: Arial, sans-serif;
margin:0;
background:#f5f7fa;
color:#333;
}

header {
background:#0c4a6e;
color:white;
padding:20px;
text-align:center;
}

nav a {
color:white;
margin:0 10px;
text-decoration:none;
font-weight:bold;
}

.hero {
background:#e0f2fe;
padding:40px;
text-align:center;
}

.articles {
padding:40px;
max-width:1000px;
margin:auto;
}

.card {
background:white;
padding:20px;
margin-bottom:20px;
border-radius:10px;
box-shadow:0 2px 5px rgba(0,0,0,0.1);
}

footer {
background:#111;
color:#aaa;
text-align:center;
padding:20px;
}