body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #0e1f3e;
    padding: 1em 2em;
    color: white;
}
.logo {
    max-height: 60px;
}
nav a {
    color: white;
    margin: 0 1em;
    text-decoration: none;
}
.hero {
    width: 100%;
}
.hero-img {
    width: 100%;
    height: auto;
    display: block;
}
.about, .contact {
    padding: 2em;
    background-color: #f4f4f4;
}
footer {
    text-align: center;
    padding: 1em;
    background-color: #0e1f3e;
    color: white;
}