body {
    overflow-x: hidden;
}

#page-wrapper {
    overflow-x: hidden;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.2rem 2.5rem;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
    transition: background-color 0.3s;
}

header:hover {
    background-color: rgba(0, 0, 0, 0.8);
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
}

header nav a {
    color: white;
    text-decoration: none;
    margin-left: 1rem;
}