body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f4f4f4;
}

header {
    background-color: #003366;
    color: white;
    padding: 20px 10px;
    text-align: center;
}

nav {
    display: flex;
    justify-content: center;
    background-color: #0055a5;
    padding: 10px;
}

nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

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

main {
    padding: 20px;
    max-width: 900px;
    margin: 0 auto;
}

section {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #ccc;
}

h2 {
    color: #003366;
}

.responsive-img {
    max-width: 100%;
    height: auto;
    margin: 10px 0;
}

footer {
    text-align: center;
    background-color: #003366;
    color: white;
    padding: 10px;
    position: relative;
    bottom: 0;
    width: 100%;
}
