body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    position: relative;
    height: 100vh;
    overflow: hidden;
    color: #fff;
}

#background-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -1;
    transform: translate(-50%, -50%);
    background-size: cover;
}

.logo-container {
    position: absolute;
    top: 20px;
    left: 20px;
}

.logo-container img {
    height: 60px;
}

nav {
    position: absolute;
    bottom: 20px;
    width: 100%;
    text-align: center;
}

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

nav ul li {
    display: inline;
    margin: 0 10px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
}

section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
}

section#home {
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}