body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: url('space_bg.jpg') no-repeat center center fixed;
    background-size: cover;
    color: white;
    text-align: center;
}
header {
    background: rgba(58, 58, 95, 0.8);
    padding: 20px;
}
.logo {
    width: 100px;
    height: auto;
    margin-bottom: 10px;
}
nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    background: rgba(42, 42, 63, 0.8);
}
nav ul li {
    margin: 10px;
}
nav ul li a {
    text-decoration: none;
    color: white;
    font-weight: bold;
}
section {
    padding: 50px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.6);
    margin: 10px;
    border-radius: 10px;
}
footer {
    background: rgba(58, 58, 95, 0.8);
    padding: 10px;
    position: relative;
}