body {
    margin: 0;
    background-color: #0a0a0a;
    font-family: 'Roboto', sans-serif;
    color: #fff;
}
a {
    text-decoration: none;
    color: inherit;
}
header {
    background: linear-gradient(90deg, #00f0ff, #ff00e6);
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
header img {
    height: 60px;
}
header nav a {
    color: #fff;
    margin: 0 15px;
    font-weight: bold;
    transition: color 0.3s;
}
header nav a:hover {
    color: #ffd700;
}
footer {
    background: #111;
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
    color: #666;
}