body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #0b0f23;
    color: #fff;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #001f4d;
}
header nav a {
    margin-left: 1rem;
    color: #00bfff;
    text-decoration: none;
    font-weight: bold;
}
.logo {
    height: 50px;
}
main {
    padding: 2rem;
    max-width: 900px;
    margin: auto;
}
.disclaimer {
    margin-top: 2rem;
    font-size: 0.8rem;
    color: #aaa;
}