/* Container */
#horizontal-multilevel-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    position: relative;
    z-index: 100;
}

/* First level items */
#horizontal-multilevel-menu>li {
    display: block;
    float: left;
    position: relative;
}

#horizontal-multilevel-menu a {
    display: block;
    text-decoration: none;
    padding: 10px 10px;
    white-space: nowrap;
    font-size: 0.9rem;
    color: #333;
    /* User Requirement: Distance between links/touch targets >= 40px */
    min-height: 40px;
    box-sizing: border-box;
    line-height: 17px;
    /* Resulting in 20px padding-top + 20px line-height = 40px visual vertical space if needed, or simply padding ensures clickable area */
}

#horizontal-multilevel-menu a[aria-haspopup="true"] {
    position: relative;
    padding-right: 23px;
}

#horizontal-multilevel-menu a .submenu-arrow {
    position: absolute;
    right: 10px;
    top: calc(50% - 2px);
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: translateY(-50%) rotate(45deg);
    opacity: 0.7;
}

/* Root items styles (optional customization) */
#horizontal-multilevel-menu a.root-item {
    font-weight: 100;
    color: #333;
    font-size: 0.9rem;
}

#horizontal-multilevel-menu a:hover {
    background-color: var(--main-color-alpha);
    border-radius: 5px;
    color: var(--main-color-hover);
}

#horizontal-multilevel-menu .has-submenu a:hover {
    border-radius: 0;
}

#horizontal-multilevel-menu .has-submenu li:first-child a:hover {
    border-radius: 10px 10px 0 0;
}

#horizontal-multilevel-menu .has-submenu li:last-child a:hover {
    border-radius: 0 0 10px 10px;
}

#horizontal-multilevel-menu a.root-item-selected {
    font-weight: bold;
    color: var(--main-color);
    background-color: var(--main-color-alpha);
    border-radius: 5px;
}

/* Submenu container - using opacity/visibility for SEO friendly hiding */
#horizontal-multilevel-menu ul {
    position: absolute;
    top: 100%;
    left: 0;
    list-style: none;
    margin: 0;
    padding: 0;
    min-width: 200px;
    background-color: #fff;
    border: 1px solid rgba(195, 205, 224, 0.3);
    box-shadow: 0 4px 15px rgba(195, 205, 224, 0.5);
    border-radius: 10px;

    /* Hiding mechanism */
    opacity: 0;
    visibility: hidden;
    /* Move it slightly up or keep in place. Using transform for animation requires it to be stable or transition nicely. */
    transform: translateY(10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;

    /* Ensure it doesn't block clicks when hidden (visibility handles this, but z-index helps layering) */
    z-index: 200;
}

/* Second level and deeper - show on proper side */
#horizontal-multilevel-menu ul ul {
    top: 0;
    left: 100%;
}

/* Show submenu on hover */
#horizontal-multilevel-menu li:hover>ul {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}


@media (max-width: 768px) {
    header .wrapper-b .header_nav {
        text-align: center;
        align-items: center;
    }
    #horizontal-multilevel-menu a.root-item {
        font-size: 1.2rem;
    }
    #horizontal-multilevel-menu a.root-item-selected{
        font-size: 1.2rem;
        font-weight: 100;
    }
    #horizontal-multilevel-menu>li {
        float: none;
        display: block;
        border-bottom: 1px solid #eee;
    }

    #horizontal-multilevel-menu ul {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
    }

    #horizontal-multilevel-menu li.submenu-open>ul {
        display: block;
    }

    #horizontal-multilevel-menu>li>ul>li>a {
        font-size: 1.05rem;
        padding-top: 14px;
        padding-bottom: 14px;
        padding-left: 22px;
        line-height: 1.2;
    }

    #horizontal-multilevel-menu ul ul a {
        font-size: 1.0rem;
        padding-top: 12px;
        padding-bottom: 12px;
        padding-left: 32px;
        line-height: 1.2;
    }

    #horizontal-multilevel-menu li.submenu-open>a[aria-haspopup="true"] .submenu-arrow {
        transform: translateY(-50%) rotate(-135deg);
        opacity: 1;
    }
}

/* Selected state styling */
#horizontal-multilevel-menu li.item-selected>a {
    color: var(--main-color);
    font-weight: bold;
}

/* Clearfix */
.menu-clear-left {
    clear: left;
    font-size: 0;
    line-height: 0;
}