body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #bfd7ed;
    color: #333;
}

header {
    background-color: #003b73;
    color: #bfd7ed;
    text-align: center;
    padding: 2rem 1rem;
}

nav {
    background-color: #0074b7;
    padding: 0.5rem;
    text-align: center;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav a {
    color: #bfd7ed;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    text-decoration: underline;
}

main {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

section {
    background-color: white;
    margin: 1rem 0;
    padding: 1.5rem;
    border-radius: 8px;
    width: 100ch;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #003b73;
    color: #bfd7ed;
    font-size: 0.9rem;
}