header {
    background-color: #1a1a1e;
    border-bottom: 2px solid #e5ad35;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

header nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 20px 0;
}

header nav ul li {
    margin: 0 25px;
}

header nav ul li a {
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #a8a8b3;
    transition: color 0.3s ease, transform 0.3s ease;
    display: inline-block;
}

header nav ul li a:hover {
    color: #e5ad35;
    transform: translateY(-2px);
}