.main-nav.active {
    display: block;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-red-primary);
    z-index: 100;
    padding: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.main-nav.active ul {
    flex-direction: column;
    align-items: center;
}

.main-nav.active li {
    margin: 0.5rem 0;
    width: 100%;
    text-align: center;
}

.main-nav.active a {
    padding: 0.75rem 1rem;
    display: block;
}