body {
font-family: Arial, Helvetica, sans-serif;
background: #f9f9f9;
margin: 0;
padding: 1rem;
}
.container {
max-width: 960px;
margin: auto;
background: #fff;
padding: 2rem;
box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
h1 {
color: #2563eb;
}