#main-menu ul {
    padding: 0;
    display: flex;
    list-style-type: none;
}
#main-menu ul li {
    margin-left: 1rem;
}
#main-menu ul li a {
    color: inherit;
    padding: 1rem;
    position: relative; 
}
#main-menu ul li a:before {
    content: "";
    display: block;
    width: 0;
    height: 2px;
    background: transparent;
    position: absolute;
    bottom: 10px;
    transition: all 0.3s ease-in-out;
}
#main-menu ul li a:hover:before {
    background: var(--purple);
    width: 100%;
}
#main-menu ul li a:hover,
#main-menu ul li.current-menu-item a {
    color: var(--purple);
}
#main-menu ul li ul {
    display: none;
}
#hamburger {
    display: none;
}
@media only screen and (max-width: 1281px) {
    #main-menu ul {
        display: block;
        margin: 0;
        padding: 0;
    }
    #main-menu ul li {
        margin: 0;
        padding: 0;
        border-top: solid 1px #ddd;
    }
    #main-menu ul li a {
        display: block;
        padding: 0.25rem 0;
    }
    #hamburger {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 2rem;
        height: 2rem;
        background: var(--purple);
        border-radius: 50%;
        padding: 0.5rem;
        transition: all 0.3s ease-in-out;
    }     
    
    #hamburger span {
        display: block;
        width: 100%;
        height: 4px;
        background: #fff;
        border-radius: 2px;
    }
    #hamburger.nyitva span {
        background: #fff;
        transition: all 0.3s ease-in-out;
    }
    #hamburger.nyitva span:nth-of-type(2) {
        display: none;
    }
    #hamburger.nyitva span:nth-of-type(1) {
        transform: rotate(45deg );
        margin-bottom: -2px;
    }
 
    #hamburger.nyitva span:nth-of-type(3) {
        transform: rotate(-45deg );
        margin-top: -2px;
    }
    #hamburger.nyitva {
        justify-content: center;
    }
    #main-menu {
        max-height: 0;
        opacity: 0;
        border-top: solid 1px #ddd;
        transition: all 0.8s ease-in-out;
    }
    #main-menu.nyitva {
        margin-top: 0.75rem;
        max-height: 1000px;
        opacity: 1;
    }
}