#menu-toggle:checked + .hamburger .hamburger-line:nth-child(2) {
    opacity: 0;
}

#menu-toggle:checked + .hamburger .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.submenu-active .submenu {
    max-height: 500px; 
}

.submenu-active .submenu-toggle::before {
    content: '-';
}

.submenu-active .submenu-toggle {
    transform: rotate(180deg);
}

.has-submenu {
    background-color: transparent;
}

@media (min-width: 992px) {
    .hamburger {
        display: none;
    }
    
    .nav-menu {
        position: static;
        width: auto;
        height: auto;
        transform: none;
        display: flex;
        padding: 0;
        overflow: visible;
        box-shadow: none;
        background-color: transparent;
    }
    
    .nav-menu > li {
        border-bottom: none;
        position: relative;
    }
    
    .nav-menu > li > a {
        padding: 0 20px;
        height: 70px;
        display: flex;
        align-items: center;
    }
    
    .submenu-toggle {
        display: none;
    }
    
    .submenu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 220px;
        background-color: #ffffff;
        box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .nav-menu > li:hover .submenu {
        max-height: 500px;
    }
    
    .submenu li a {
        padding: 12px 20px;
    }
}