body {
    margin: 0;
    background: #f2f6fc;
    font-family: Arial;
}

header {
    background: #0a1a35;
    color: white;
    padding: 25px;
    text-align: center;
}

.menu {
    background: #142c54;
    padding: 12px;
    text-align: center;
}

.menu a {
    color: #ffffff;
    margin: 0 20px;
    font-weight: bold;
    text-decoration: none;
}

.dashboard {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 25px;
}

.card {
    background: white;
    width: 330px;
    margin: 15px;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0px 0px 12px #999;
}

.card.big {
    width: 700px;
}

footer {
    text-align: center;
    background: #0a1a35;
    color: white;
    padding: 20px;
    margin-top: 40px;
}