/* Navigation */
nav {
    background-color: var(--secondary-colour);
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
}
nav ul li {
    margin-top: auto;
    margin-bottom: auto;
}
nav a {
    color: var(--text-background-colour);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: var(--accent-colour);
}