nav {
    background: var(--card-bg);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    justify-content: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-color);
}