body {
    font-family: 'Roboto', sans-serif;
    background-color: #000038;
    color: #E5E5E5;
    margin: 0;
    padding: 0;
}

header {
    background-color: #5643DA;
    padding: 20px;
    text-align: center;
}

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

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

nav a {
    color: #E5E5E5;
    text-decoration: none;
    font-weight: bold;
}

<style>
    .hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    padding-top: 60px;
    overflow: hidden;
}

#hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: translate(-50%, -50%);
    z-index: -1;
}

.hero-content {
    color: white;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}