body { 
    font-family: Arial, sans-serif; 
    background: #f4f8fb; 
    margin: 0; 
    padding: 0; 
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
header {
    background: #0078d7;
    color: #fff;
    padding: 2rem 0 1rem 0;
    text-align: center;
}
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
h1 {
    margin: 0.5em 0;
}
.links {
    margin: 2rem 0;
}
.links a {
    display: inline-block;
    margin: 0.5rem 1rem;
    padding: 0.75rem 1.5rem;
    background: #0078d7;
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}
.links a:hover {
    background: #005fa3;
}
footer {
    text-align: center;
    padding: 1rem 0;
    background: #eee;
    color: #333;
}