.navbar {
    display: flex;
    align-items: center;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-size: 14px;
    display: flex;
    align-items: center;
    padding: 16px 0px;
    margin-right: 45px ;
    font-weight:600;
    font-family: 'Roboto Flex', sans-serif;
    text-transform: uppercase;
    transition:all 500ms ease;
    -moz-transition:all 500ms ease;
    -webkit-transition:all 500ms ease;
    -ms-transition:all 500ms ease;
    -o-transition:all 500ms ease;
}

.nav-link:hover {
    color: #41adce;
    transition:all 500ms ease;
}

.nav-link i {
    margin-left: 5px;
    font-size: 11px;
    float: right;
}

/* Υπομενού (1ο επίπεδο) */
.dropdown-menu {
    display: none;
    position: absolute;
    background-color: #41adce;
    min-width: 220px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    z-index: 1;
    list-style: none;
    padding: 0;
    border-top:3px solid #ffffff;
    text-transform: uppercase;
}

/* Υπο-Υπομενού (2ο επίπεδο) */
.dropdown-submenu {
    position: relative;
    z-index: 99;
}

.dropdown-submenu .dropdown-menu {
    left: 100%;
    top: -3px;
}

.dropdown-menu li {
    position: relative;
    border-top: 1px solid #e5e5e5;
}

.dropdown-menu li a {
    color: white;
    text-decoration: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 50px;
}

.dropdown-menu li a:hover {
    color: #ffffff;
    background-color: #1e73be;
    transition:all 500ms ease;
}

.submenu-trigge {
    width: 100%;
}


/* Ανοιγμα με hover (μόνο σε desktop) */
@media (min-width: 769px) {
    .nav-item:hover > .dropdown-menu {
        display: block;
    }
    .dropdown-submenu:hover > .dropdown-menu {
        display: block;
    }
}

/* Mobile Menu */
.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: white;
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        left: -120%;
        top:49px;
        flex-direction: column;
        background-color: #41adce;
        width: 100%;
        text-align: left;
        transition: 0.3s;
        padding: 20px;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 10px 0;
    }

    .nav-link {
        padding: 0px 0px;
    }
    
    /* Υπομενού (1ο & 2ο επίπεδο) - mobile */
    .dropdown-menu {
        position: static;
        display: none;
        width: 100%;
        margin: 10px 0 0 15px;
        box-shadow: none;
        background-color: rgba(0, 0, 0, 0.2);
    }
    
    .dropdown-menu.active {
        display: block;
    }
}